ICG SERVICES INC
S-4, 1998-04-27
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      AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON APRIL 24, 1998
                                                 REGISTRATION NO. 333-     
                                                                      -----
      ========================================================================
                          SECURITIES AND EXCHANGE COMMISSION

                                WASHINGTON, D.C. 20549

                                    --------------
                                       FORM S-4
               REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
                                    --------------
                                  ICG SERVICES, INC.
                (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)

                                    --------------

                 DELAWARE                                  84-1448147
             (State or other                            (I.R.S. Employer
             jurisdiction of                             Identification
             incorporation or                                Number)
              organization)


                                    --------------

                               161 INVERNESS DRIVE WEST
                              ENGLEWOOD, COLORADO 80112
                                    (303) 414-5000

            (Address, including zip code, and telephone number, including
               area code, of registrant's principal executive offices)

                                                    WITH A COPY TO:
     H. DON TEAGUE, EXECUTIVE VICE PRESIDENT
         GENERAL COUNSEL AND SECRETARY            AUDREY A. ROHAN, ESQ.
             ICG SERVICES, INC.                     REID & PRIEST LLP
          161 INVERNESS DRIVE WEST                 40 WEST 57TH STREET
         ENGLEWOOD, COLORADO 80112              NEW YORK, NEW YORK  10019
              (303) 414-5000                           (212) 603-2000
     (Name, address, including zip code, and
     telephone number, including area code,
     of agent for service for registrant)

                                    --------------
              APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE
          PUBLIC:  AS SOON AS PRACTICABLE AFTER THE REGISTRATION STATEMENT
          BECOMES EFFECTIVE.

              IF THE SECURITIES BEING REGISTERED ON THIS FORM ARE BEING
          OFFERED IN CONNECTION WITH THE FORMATION OF A HOLDING COMPANY AND
          THERE IS COMPLIANCE WITH GENERAL INSTRUCTION G, CHECK THE
          FOLLOWING BOX:   [ ]

                                    --------------

                           CALCULATION OF REGISTRATION FEE
     =========================================================================
                                          PROPOSED
                                          MAXIMUM      PROPOSED
                                          OFFERING     MAXIMUM
     TITLE OF EACH CLASS     AMOUNT        PRICE      AGGREGATE     AMOUNT OF
        OF SECURITIES        TO BE          PER        OFFERING    REGISTRATION
      TO BE REGISTERED     REGISTERED   SECURITY(1)    PRICE(1)        FEE
     --------------------------------------------------------------------------
     10% SENIOR
     EXCHANGE
     DISCOUNT
     NOTES DUE 2008         490,000       $613.41    $300,570,900   $88,668.42
     ==========================================================================

          (1)  DETERMINED SOLELY FOR THE PURPOSES OF CALCULATING THE
               REGISTRATION FEE IN ACCORDANCE WITH RULE 457(F)(2) PROMULGATED
               UNDER THE SECURITIES ACT OF 1933, AS AMENDED.


             THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON
          SUCH DATE OR DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE
          DATE UNTIL THE REGISTRANT SHALL FILE A FURTHER AMENDMENT WHICH
          SPECIFICALLY STATES THAT THIS REGISTRATION STATEMENT SHALL
          THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF
          THE SECURITIES ACT OF 1933, AS AMENDED, OR UNTIL THE REGISTRATION
          STATEMENT SHALL BECOME EFFECTIVE ON SUCH DATE AS THE SECURITIES
          AND EXCHANGE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(A),
          MAY DETERMINE.

     ========================================================================

     <PAGE>


          THIS PROSPECTUS AND THE INFORMATION CONTAINED HEREIN ARE SUBJECT
          TO COMPLETION OR AMENDMENT.  A REGISTRATION STATEMENT RELATING TO
          THESE SECURITIES HAS BEEN FILED WITH THE SECURITIES AND EXCHANGE
          COMMISSION.  THESE SECURITIES MAY NOT BE SOLD NOR MAY OFFERS TO
          BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT
          BECOMES EFFECTIVE.  THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER
          TO SELL OR THE SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE
          ANY SALE OF THESE SECURITIES IN ANY STATE IN WHICH SUCH OFFER,
          SOLICITATION OR SALE WOULD BE UNLAWFUL PRIOR TO REGISTRATION OR
          QUALIFICATION UNDER THE SECURITIES LAWS OF ANY SUCH STATE.


                      SUBJECT TO COMPLETION. DATED       , 1998.
                                                   ------


                                  OFFER TO EXCHANGE

                                   ALL OUTSTANDING
                          10% SENIOR DISCOUNT NOTES DUE 2008
                                         FOR
                     10% SENIOR EXCHANGE DISCOUNT NOTES DUE 2008
                                          OF
                                  ICG SERVICES, INC.

                                                           
                          ---------------------------------

                                  THE EXCHANGE OFFER
                    WILL EXPIRE AT 5:00 P.M., NEW YORK CITY TIME,
                         ON           , 1998 UNLESS EXTENDED
                            ----------                      
                                                          
                           -------------------------------

            ICG Services, Inc., a Delaware corporation (the "Company"),
          hereby offers upon the terms and subject to the conditions set
          forth in this Prospectus and the accompanying Letter of
          Transmittal (the "Letter of Transmittal"), to exchange (the
          "Exchange Offer") its outstanding 10% Senior Discount Notes due
          2008 (the "Old Notes"), of which an aggregate of $490,000,000 in
          principal amount at maturity is outstanding as of the date
          hereof, for an equal principal amount of newly issued 10% Senior
          Exchange Discount Notes due 2008 (the "New Notes").  The form and
          terms of the New Notes will be the same as the form and terms of
          the Old Notes except that the New Notes will be registered under
          the Securities Act of 1933, as amended (the "Securities Act"),
          and will not bear legends restricting the transfer thereof. The
          New Notes will be entitled to the benefits of the Indenture,
          dated as of February 12, 1998, governing the Notes (the
          "Indenture"). The New Notes and the Old Notes are sometimes
          referred to herein collectively as the "Notes" or the "Senior
          Discount Notes." 
                               (Continued on next page)

                                     ------------

          SEE "RISK FACTORS" AT PAGE 14 FOR A DISCUSSION OF CERTAIN RISKS
          THAT SHOULD BE CONSIDERED BY ELIGIBLE HOLDERS IN EVALUATING THE
          EXCHANGE OFFER.

                                     ------------

            THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE
              SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES
              COMMISSION NOR HAS THE SECURITIES AND EXCHANGE COMMISSION
                 OR ANY STATE SECURITIES COMMISSION PASSED UPON THE 
                    ACCURACY OR ADEQUACY OF THIS PROSPECTUS.  ANY 
                         REPRESENTATION TO THE CONTRARY IS A
                                  CRIMINAL OFFENSE.

     <PAGE>


          There will not be any payment of interest on the New Notes prior
          to August 15, 2003. Interest on the New Notes will be paid in
          cash at the rate of 10% per annum on each February 15 and August
          15, commencing August 15, 2003, to holders of record on the
          immediately preceding February 1 and August 1, respectively. The
          Company is a wholly owned subsidiary of ICG Communications, Inc.,
          a Delaware corporation ("ICG").  Prior to this Exchange Offer
          there has been no public market for any securities of the Company
          and there can be no assurance that such a market will develop.
          See "Description of the New Notes."  

            On or after February 15, 2003, the New Notes are redeemable, at
          the option of the Company, in whole or in part from time to time,
          at the redemption prices set forth herein, plus accrued and
          unpaid interest to the date of redemption.  Upon a Change of
          Control (as herein defined), the Company is required to make an
          offer to purchase the Notes at a purchase price equal to 101% of
          their Accreted Value on the date of purchase plus accrued
          interest. At March 31, 1998, the Company had, on an
          unconsolidated basis, approximately $304.4 million of senior
          indebtedness including the New Notes, and the subsidiaries of the
          Company had, on an unconsolidated basis, an aggregate of
          approximately $6.1 million of senior indebtedness, consisting
          solely of capital lease obligations.

            At any time prior to February 15, 2001, the Company may, at its
          option, redeem New Notes having an aggregate principal amount of
          up to 35% of the aggregate principal amount of all New Notes
          originally issued, at a redemption price equal to 110% of the
          Accreted Value thereof on the date of redemption, plus accrued
          and unpaid interest, with the proceeds of one or more public or
          private Equity Offerings (as defined herein), provided that after
          any such redemption at least 65% of the aggregate principal
          amount of the New Notes initially used remains outstanding.

            The Company will accept for exchange any and all Old Notes
          which are properly tendered in the Exchange Offer prior to 5:00
          p.m., New York City time, on           , 1998 (if and as 
                                       ----------
          extended, the "Expiration Date"). Tenders of Old Notes may be
          withdrawn at any time prior to 5:00 p.m., New York City time, on
          the Expiration Date. Old Notes may be tendered only in integral
          multiples of $1,000.

            Based on a previous interpretation by the staff of the
          Securities and Exchange Commission (the "Commission") set forth
          in no-action letters to third parties, the Company believes that
          the New Notes pursuant to the Exchange Offer may be offered for
          resale, resold and otherwise transferred by a holder thereof
          (other than (i) a broker-dealer who purchases such New Notes
          directly from the Company to resell pursuant to Rule 144A or any
          other available exemption under the Securities Act or (ii) a
          person that is an affiliate of the Company (within the meaning of
          Rule 405 under the Securities Act)) without compliance with the
          registration and prospectus delivery provisions of the Securities
          Act, provided that the holder or any other such person is
          acquiring the New Notes in its ordinary course of business and is
          not participating, and has no arrangement or understanding with
          any person to participate, in the distribution of the New Notes. 
          Holders of Old Notes wishing to accept the Exchange Offer must
          represent to the Company that such conditions have been met.

            Each broker-dealer that receives New Notes for its own account
          pursuant to the Exchange Offer must acknowledge that it will
          deliver a Prospectus in connection with any resale of such New
          Notes.  The Letter of Transmittal states that by so acknowledging
          and by delivering a prospectus, a broker-dealer will not be
          deemed to admit that it is an "underwriter," within the meaning
          of the Securities Act, in connection with resales of New Notes
          received in exchange for Old Notes where such Old Notes were
          acquired by such broker-dealer as a result of market-making
          activities or other trading activities.  The Company has agreed
          that, for a period of 90 days after the Expiration Date, it will
          make this Prospectus available to any broker-dealer for use in
          connection with any such resale. See "Plan of Distribution."

            The Company believes that none of the registered holders of the
          Old Notes is an affiliate (as such term is defined in Rule 405
          under the Securities Act) of the Company. Prior to this Exchange
          Offer, there has been no public market for the Old Notes.  The
          Company does not intend to list the New Notes on any securities
          exchange or to seek approval for quotation through any automated
          quotation system. There can be no assurance that an active market
          for the New Notes will develop. To the extent that a market for
          the New Notes does develop, the market value of the New Notes
          will depend on market conditions (including yields on alternative
          investments), general economic conditions, the Company's
          financial condition and other conditions.  Such conditions might
          cause the New Notes, to the extent that they are actively traded,
          to trade at a significant discount from face value. The Company


                                     2
     <PAGE>


          has not entered into any arrangement or understanding with any
          person to distribute the New Notes to be received in the Exchange
          Offer.

            The Company will not receive any proceeds from the Exchange
          Offer. The Company has agreed to bear the expenses of the
          Exchange Offer. No underwriter is being used in connection with
          the Exchange Offer. The New Notes have not been rated by a
          nationally recognized statistical rating organization.

                  The date of this Prospectus is            , 1998.
                                                 -----------



                                  TABLE OF CONTENTS


          AVAILABLE INFORMATION . . . . . . . . . . . . . . . . . . . .   2
          PROSPECTUS SUMMARY  . . . . . . . . . . . . . . . . . . . . .   3
          RISK FACTORS  . . . . . . . . . . . . . . . . . . . . . . . .  14
          SELECTED FINANCIAL DATA . . . . . . . . . . . . . . . . . . .  28
          MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
             AND RESULTS OF OPERATIONS  . . . . . . . . . . . . . . . .  30
          BUSINESS  . . . . . . . . . . . . . . . . . . . . . . . . . .  36
          MANAGEMENT  . . . . . . . . . . . . . . . . . . . . . . . . .  49
          CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS  . . . . . . .  50
          SOLE STOCKHOLDER OF THE COMPANY . . . . . . . . . . . . . . .  50
          THE EXCHANGE OFFER  . . . . . . . . . . . . . . . . . . . . .  51
          DESCRIPTION OF THE NEW NOTES  . . . . . . . . . . . . . . . .  58
          CERTAIN UNITED STATES FEDERAL INCOME TAX CONSIDERATIONS . . .  87
          PLAN OF DISTRIBUTION  . . . . . . . . . . . . . . . . . . . .  93
          LEGAL MATTERS . . . . . . . . . . . . . . . . . . . . . . . .  93
          EXPERTS . . . . . . . . . . . . . . . . . . . . . . . . . . .  93
          INDEX TO CONSOLIDATED FINANCIAL STATEMENTS  . . . . . . . . .  94


                                   ---------------


          No person has been authorized to give any information or to make
          any representations other than those contained in this
          Prospectus, and, if given or made, such information or
          representations must not be relied upon as having been
          authorized.  This Prospectus does not constitute an offer to sell
          or the solicitation of an offer to buy any securities other than
          the securities to which it related or any offer to sell or the
          solicitation of an offer to buy such securities in any
          circumstances in which such offer or solicitation is unlawful. 
          Neither the delivery of this Prospectus nor any sale made
          hereunder shall, under any circumstances, create any implication
          that there has been no change in the affairs of the Company since
          the date hereof or that the information contained herein is
          correct as of any time subsequent to its date.


     <PAGE>


                                AVAILABLE INFORMATION

            The Company has filed with the Commission a Registration
          Statement on Form S-4 (together with any amendments thereto, the
          "Registration Statement") under the Securities Act with respect
          to the New Notes offered hereby. As permitted by the rules and
          regulations of the Commission, this Prospectus omits certain
          information, exhibits and undertakings contained in the
          Registration Statement. For further information with respect to
          the Company and the New Notes offered hereby, reference is made
          to the Registration Statement, including the exhibits thereto and
          the financial statements, notes and schedules filed as a part
          thereof. The Registration Statement, including the exhibits
          thereto and the financial statements, and other information filed
          by the Company with the Commission can be inspected and copied
          (at prescribed rates) at the Commission's Public Reference
          Section, Room 1024, Judiciary Plaza, 450 Fifth Street, N.W.,
          Washington, D.C. 20549, and at the Regional Offices of the
          Commission located at Citicorp Center, 500 West Madison Street,
          Suite 1400, Chicago, Illinois 60661-2511 and 7 World Trade
          Center, 13th Floor, New York, New York 10048. Such material may
          also be accessed electronically by means of the Commission's home
          page on the Internet at http://www.sec.gov. The Company is not
          currently subject to the informational requirements of the
          Securities Exchange Act of 1934, as amended (the "Exchange Act").
          Upon effectiveness of the Registration Statement of which this
          Prospectus is a part, the Company will become subject to the
          informational requirements of the Exchange Act.

            Pursuant to the Indenture, the Company has agreed to supply, or
          cause the Trustee to supply, to each holder of Notes, without
          cost, copies of all reports and other information that would be
          required to be filed by the Company with the Commission under the
          Exchange Act, whether or not the Company is then required to file
          reports with the Commission.


                                 -------------------

            No person is authorized in connection with any offering made
          hereby to give any information or to make any representation
          other than as contained in this Prospectus or the accompanying
          Letter of Transmittal, and, if given or made, such information or
          representation must not be relied upon as having been authorized
          by the Company.  Neither this Prospectus nor the accompanying
          Letter of Transmittal or both together constitute an offer to
          sell or a solicitation of an offer to buy any security other than
          the New Notes offered hereby, nor does it constitute an offer to
          sell or a solicitation of an offer to buy any securities offered
          hereby to any person in any jurisdiction in which it is unlawful
          to make such offer or solicitation to such person. Neither the
          delivery of this Prospectus or the accompanying Letter of
          Transmittal or both together, nor any sale made hereunder shall
          under any circumstances imply that the information contained
          herein is correct as of any date subsequent to the date hereof.

            Until            , 1998 (90 days after the date of the Exchange
                   -----------
          Offer), all dealers offering transactions in the New Notes,
          whether or not participating in the Exchange Offer, may be
          required to deliver a Prospectus.


                                 --------------------

                        NOTICE TO NEW HAMPSHIRE RESIDENTS

            NEITHER THE FACT THAT A REGISTRATION STATEMENT OR AN
          APPLICATION FOR A LICENSE HAS BEEN FILED UNDER CHAPTER 421-B OF
          THE NEW HAMPSHIRE REVISED STATUTES WITH THE STATE OF NEW
          HAMPSHIRE NOR THE FACT THAT A SECURITY IS EFFECTIVELY REGISTERED
          OR A PERSON IS LICENSED IN THE STATE OF NEW HAMPSHIRE CONSTITUTES
          A FINDING BY THE SECRETARY OF STATE THAT ANY DOCUMENT FILED UNDER
          CHAPTER 421-B IS TRUE, COMPLETE AND NOT MISLEADING. NEITHER ANY
          SUCH FACT NOR THE FACT THAT AN EXEMPTION OR EXCEPTION IS
          AVAILABLE FOR A SECURITY OR A TRANSACTION MEANS THAT THE
          SECRETARY OF STATE HAS PASSED IN ANY WAY UPON THE MERITS OR
          QUALIFICATIONS OF, OR RECOMMENDED OR GIVEN APPROVAL TO, ANY
          PERSON, SECURITY, OR TRANSACTION. IT IS UNLAWFUL TO MAKE, OR
          CAUSE TO BE MADE, TO ANY PROSPECTIVE PURCHASER, CUSTOMER, OR
          CLIENT ANY REPRESENTATION INCONSISTENT WITH THE PROVISIONS OF
          THIS PARAGRAPH.

                                 --------------------

          NETCOM, NETCOMplete, NETCOMplete Advantage and NETCOM Identity
          Pack are trademarks of NETCOM On-Line Communication Services,
          Inc. All other products, company names and logos are trademarks
          of their respective companies.


     <PAGE>


                                  PROSPECTUS SUMMARY

             The following summary is qualified in its entirety by the more
          detailed information and consolidated financial statements, and
          notes thereto, appearing elsewhere in this Prospectus. References
          herein to the "Company" refer to ICG Services, Inc. and, where
          appropriate, its subsidiaries, including NETCOM On-Line
          Communication Services, Inc., a Delaware corporation ("NETCOM"),
          and ICG Equipment, Inc., a Colorado corporation ("ICG
          Equipment"), and references herein to "ICG" refer to ICG
          Communications, Inc., a Delaware corporation, and, where
          appropriate, its subsidiaries. The terms "fiscal" or "fiscal
          year," unless otherwise defined, refer to the Company's and
          NETCOM's fiscal year ended December 31. Certain statements
          contained in this Prospectus with respect to the Company's plans
          and strategy for its business and related financing are forward-
          looking statements (as such term is defined in the Private
          Securities Litigation Reform Act). Such statements are subject to
          risks and uncertainties and, as a result, actual results may
          differ materially from those expressed in or implied by such
          forward-looking statements. For a discussion of important risks
          of an investment in the Notes, including factors that could cause
          actual results to differ materially from results referred to in
          the forward-looking statements, see "Risk Factors." Investors
          should carefully consider the information set forth under the
          caption "Risk Factors," including the risks relating to lack of
          operating history, historical operating losses of NETCOM and lack
          of credit support from ICG.

                                     THE COMPANY

             ICG Services, Inc. provides Internet services, through its
          subsidiary, NETCOM, to individuals and to small and medium-sized
          businesses. The Company also acquires telecommunications
          equipment, software and capacity for lease or sale to other
          subsidiaries of ICG. In addition to providing these services, the
          Company intends to grow through acquisitions of
          telecommunications, Internet and related businesses that
          complement ICG's business strategy.

             The Company is a wholly owned subsidiary of ICG, one of the
          nation's leading integrated communications providers ("ICPs") of
          competitive communications services, based on estimates of the
          industry's 1997 revenue. ICPs seek to provide an alternative to
          incumbent local exchange carriers ("ILECs"), long distance
          carriers, Internet service providers ("ISPs") and other
          communications providers for a full range of communications
          services in the increasingly deregulated telecommunications
          industry.  ICG's objectives are to provide a wide range of local,
          long distance and data communications services to business end
          users and wholesale customers and to be a premier provider of
          high quality communications services to its targeted business and
          carrier customers. ICG believes that customers are increasingly
          demanding a broad, full service approach to providing services
          and that, by offering a bundled package, ICG will be better able
          to capture business from communications-intensive commercial
          customers.

             The principal executive offices of the Company are located at
          161 Inverness Drive West, Englewood, Colorado 80112; its
          telephone number is 303-414-5000.

                                  BUSINESS STRATEGY

             The Company's objective is to acquire and consolidate
          telecommunications, Internet and related businesses and bundle
          the services provided by these businesses with ICG's current
          competitive local and long distance telecommunications products.
          By leveraging the Company's relationship with ICG and utilizing
          ICG's extensive network footprint, the Company intends to capture
          the growth in demand from business customers for a full package
          of telecommunications services by offering a wide array of
          services including Internet services.

             Market Services to Business End Users. The Company is focused
          on marketing a variety of telecommunications and Internet
          products and services primarily to business end users. Through
          its wholly owned subsidiary, NETCOM, the Company currently
          markets Internet services to individuals and to small and medium-
          sized businesses. In January 1997, NETCOM announced plans to
          migrate its customer focus away from high volume, low margin
          consumer customers to higher margin products for small and
          medium-sized business customers. Management believes a targeted
          business end user strategy can better leverage ICG's network
          footprint and telecommunications investment. To date, NETCOM has


                                      -3-
     <PAGE>


          been successful in implementing this plan, and has seen its
          average revenue per customer increase from $21.47 during fiscal
          1996 to $23.92 during fiscal 1997.

             Concentrate on Regional Clusters. The Company believes that by
          focusing its growth on business activities located within ICG's
          network of regional clusters in California, Colorado, Ohio and
          the Southeast, it will be able to more effectively service its
          customers' needs and efficiently market, operate and control its
          network and expanded service offerings. In addition, the Company
          believes that by focusing future growth within ICG's existing
          footprint, it will be able to overlay ICG's support services and
          realize extensive cost synergies. For example, a significant
          portion of NETCOM's customer base is located in California. To
          the extent feasible, NETCOM will route its Internet traffic over
          ICG's California network. NETCOM plans to continue to operate and
          grow its business in the United States outside of ICG's network
          footprint and in Canada and the United Kingdom.

             Increase Revenue and Margins through Bundled Services. The
          Company intends to increase its revenue and margins by providing
          a full range of communications products to its end user
          customers. The Company plans to complement ICG's competitive
          local and long distance telecommunications offerings by combining
          the Internet products developed by NETCOM and cross-marketing
          these combined products through ICG's direct sales force.
          Additionally, NETCOM intends to market ICG telecommunications
          products to its small and medium-sized business customer base.

             Integrate Investments and Expand. The Company expects to
          acquire telecommunications, Internet and related businesses that
          complement ICG's business strategy to offer a wide array of
          telecommunications, Internet and related services, primarily to
          business customers. Acquisition targets could include U.S. and
          foreign competitive local exchange carriers ("CLECs"), ISPs and
          long distance companies, among others.  The Company intends to
          make future acquisitions primarily through the use of common
          stock of ICG ("ICG Common Stock"), cash on hand and the proceeds
          from securities offerings.

             ICG and the Company believe that the acquisition of NETCOM is
          strategically important as it helps to (i) broaden ICG's
          communications product offerings to include Internet services and
          (ii) provide NETCOM with extensive network infrastructure for the
          on-net transportation of its Internet traffic. The Company will
          continue to look for acquisitions which it believes will further
          ICG's objectives to provide a wide range of local, long distance
          and data communications services to business end users and
          wholesale customers and to be a premier provider of high quality
          communications services to its targeted business and carrier
          customers.

                                        NETCOM

             NETCOM is a leading provider of high quality Internet
          solutions to individuals and small and medium-sized businesses in
          the United States and also provides the same high quality
          Internet solutions in Canada and the United Kingdom. NETCOM
          offers a broad spectrum of Internet solutions designed to enhance
          customer productivity through the integration and application of
          technologies by providing a comprehensive software platform to
          interface with the World Wide Web (the "Web"), premium quality
          Internet access and support services and on-line tools to
          automate Web site creation and development. These offerings have
          led to significant growth, with revenue increasing from
          approximately $2.4 million for 1993 to approximately $160.7
          million for fiscal 1997. In January 1997, NETCOM announced plans
          to migrate its customer focus away from high volume, low margin
          consumer customers to higher margin products for small and
          medium-sized business customers.

             NETCOM owns and operates a data communications network
          consisting of 17 hubs containing frame relay switches and high-
          performance routers connecting a backbone of leased Asynchronous
          Transfer Mode ("ATM") switches and leased high-speed dedicated
          data lines in the United States, Canada and the United Kingdom.
          NETCOM maintains 247 points-of-presence ("POPs") in the United
          States and Canada and also offers virtual local access numbers in
          Canada and the United Kingdom. The design and architecture of the
          physical network permits NETCOM to offer highly flexible,
          reliable high-speed services to its customers and support
          significant subscriber growth. The NETCOM infrastructure is
          monitored by network operations centers ("NOCs") in San Jose,
          California, Dallas, Texas, Toronto, Canada and London, England.


                                      -4-
     <PAGE>


             NETCOM provides Internet solutions principally through dial-
          up, direct access and Web site hosting services. Direct access
          and Web site hosting services provide higher revenue per customer
          and higher margins than dial-up services. NETCOM also receives
          revenue from value-added services such as security, anti-virus
          and data storage.

             Dial-Up Services. NETCOM's dial-up customers receive an
          integrated Internet solution consisting of high quality access,
          software and 24 hours a day, seven days a week, automated
          customer support. NETCOM dial-up customers connect directly to
          the Internet via NETCOM's network which provides high speed,
          reliable access. All NETCOM dial-up accounts allow access to the
          Internet's resources, including E-mail, the Web and USENET
          newsgroups. In addition, NETCOM dial-up customers can receive a
          one megabyte ("Mb") personal Web page, access to a daily
          customized newspage via E-mail, and access to on-line financial,
          corporate and market information and analytical tools. Enhanced
          services available to dial-up customers include features such as
          additional E-mail addresses, enhanced support offerings, software
          and virus updates, access to research libraries, domain name
          service, monthly back-up, 10 Mb data storage, 750 Mb per month
          data transfer capability and premium service and technology
          support.

             NETCOM customers can quickly register using NETCOMplete
          software, available for both Windows and Macintosh platforms via
          compact disk, and set up a NETCOM account by following a sequence
          of simple, on-screen steps. All of the software needed to connect
          and access the Internet is automatically installed and
          configured, eliminating the need for complex set up procedures.
          NETCOMplete also provides an easy-to-use interface as well as
          software from leading industry participants, bookmark managers,
          off-line browsers and additional software that enhances a
          customer's Internet experience. Revenue from dial-up services
          increased from $102.9 million for fiscal 1996 to $133.7 million
          for fiscal 1997, representing approximately 85% and 83%,
          respectively, of total revenue for such periods.

             Direct Access Services. NETCOM offers a full suite of high-
          speed dedicated Internet connection and service products which
          provide its small and medium-sized business customers with direct
          access to the full range of Internet applications. These Internet
          services are offered to businesses over leased lines at various
          speeds, including 56 Kbps, T-1 and T-3 levels, depending upon the
          customer's needs. Through its direct access product line, NETCOM
          offers Internet access services including domain name and
          Internet Protocol ("IP") address, router configurations, on-line
          usage statistics and security consultation. There are generally
          no usage charges for any of NETCOM's dedicated customers, and E-
          mail service and USENET news feed are provided at no additional
          charge. Direct network connection requires the customer to obtain
          a leased line from ICG or another local telephone company. NETCOM
          provides an Internet connection based on frame relay technology
          provided by local telephone carriers. Revenue from direct access
          services increased from $16.3 million for fiscal 1996 to $19.5
          million for fiscal 1997, representing approximately 14% and 12%,
          respectively, of total revenue for such periods.

             Web Site Hosting Services. NETCOM offers Web site hosting
          services to its small and medium-sized business customers as well
          as to individuals. Web site hosting services include client
          domain name registration, hosting and site maintenance. Services
          provided are fully scalable but would, in a typical package,
          include domain name registration, 10 E-mail addresses, access to
          NETCOM's on-line Business Center, CGI scripting (which enables
          visitors to the Web site to leave their names and addresses),
          weekly back-up service, 50 Mb of data storage, 1,000 Mb per month
          of data transfers, traffic logs and Web statistics and premium
          service and technology support. Revenue from Web site hosting
          services increased from $1.3 million for fiscal 1996 to $6.3
          million for fiscal 1997, representing approximately 1% and 4%,
          respectively, of total revenue for such periods.

             Value-Added Services. As part of its dial-up, direct access
          and Web site hosting services, NETCOM offers its small and
          medium-sized business customers value-added business connectivity
          solutions packages designed to address their needs of increased
          security, reliability, access speed and customer service. The
          Company believes that businesses are willing to pay premium
          prices for these premium services. One such feature is Automatic
          Reconnect which automatically re-routes customers' traffic to an
          alternate Integrated Services Digital Network ("ISDN") line so
          that in the event of certain kinds of service interruptions
          customers may remain connected. In order to provide a secure,
          private connection among multiple specific locations, NETCOM's
          SecureConnect product performs a security assessment and then
          implements, monitors and troubleshoots a flexible security
          solution to provide secure communication between central offices,
          branch offices and off-site employees without jeopardizing the


                                      -5-
     <PAGE>


          integrity of the internal network. Another value-added service
          NETCOM offers is 24 hours a day, seven days a week support. For
          larger customers, NETCOM offers flexible, high-speed dedicated
          line service that is scalable to grow as traffic increases. Other
          value-added services offered include password protected Web
          sites, usage statistics, anti-virus software and additional
          domain names.

                                 RECENT DEVELOPMENTS

             On January 21, 1998, NETCOM was merged with a subsidiary of
          ICG in a business combination accounted for as a pooling-of-
          interests. NETCOM is a wholly owned subsidiary of the Company.
          Based upon the closing price of ICG Common Stock on such date of
          $26.25 and NETCOM's diluted shares outstanding (using the
          treasury stock method), the aggregate purchase price was
          approximately $285 million.  Based on the Company's preliminary
          internal review, it expects revenue and EBITDA losses for the
          quarter ended March 31, 1998 to be approximately $40.5 million
          and $.8 million, respectively.  All revenue was derived from
          NETCOM and $.5 million of EBITDA losses related to the allocation
          of general and administrative expenses from ICG.  Financial
          results for the quarter ended March 31, 1998 were affected
          primarily by revenue derived from NETCOM's dial-up and direct
          access products.  Dial-up revenue was partially affected by the
          lack of an industry-wide modem standard, which has since been
          resolved, as well as delayed advertising programs, which NETCOM
          expects to implement in the second quarter.  Direct access
          revenue was affected primarily by lower than expected set-up and
          equipment revenues, as well as greater sales of lower end
          dedicated lines, which generate lower revenue than higher speed
          T-1 lines.

             ICG Equipment was formed as a wholly owned subsidiary of the
          Company in January 1998.  ICG enters into arrangements with ICG
          Equipment to purchase or lease telecommunications equipment,
          software and capacity and related services.  The equipment and
          services provided to ICG will be utilized to upgrade and expand
          its network infrastructure to take full advantage of the
          opportunities and cost savings available as a result of the
          acquisitions made by the Company.  Any such arrangements will be
          on an arm's length basis and on comparable terms that ICG would
          be able to obtain from a third party.

             In February 1998, the Company completed a private offering
          (the "Private Offering") of the Old Notes.  The net proceeds from
          the Private Offering were approximately $291.6 million, net of
          underwriting commissions.  Cash interest on the Old Notes accrues
          at 10% per annum beginning February 15, 2003 and is payable each
          February 15 and August 15, commencing August 15, 2003.  The Old
          Notes will be redeemable at the option of the Company, in whole
          or in part, on or after February 15, 2003.

             In March, 1998, ICG announced its plans to offer long distance
          service via IP technology.  ICG and NETCOM will begin to market
          this service over the Internet and through an inbound
          telemarketing center in the second quarter of 1998.  ICG also
          plans to offer by the end of fiscal 1998 competitively priced
          high-speed data transmission services via digital subscriber line
          ("DSL") technology to all business and end user customers within
          its existing regional clusters.  DSL technology utilizes the
          existing twisted copper pair connection to the business or end
          user, giving the customer significantly greater bandwidth when
          connecting to the Internet.

                               ICG COMMUNICATIONS, INC.

             ICG is one of the nation's leading ICPs of competitive
          communications services, based on estimates of the industry's
          1997 revenue. ICPs seek to provide an alternative to ILECs, long
          distance carriers, ISPs and other communications providers for a
          full range of communications services in the increasingly
          deregulated telecommunications industry. Through its CLEC
          operations, ICG operates networks in four regional clusters
          covering major metropolitan statistical areas in California,
          Colorado, Ohio and the Southeast. ICG also provides a wide range
          of network systems integration services, maritime and
          international satellite transmission services and, through the
          Company, a variety of Internet connectivity and other value-added
          Internet services.  As a leading participant in the rapidly
          growing competitive local telecommunications industry, ICG has
          experienced significant growth, with total revenue increasing
          from approximately $111.6 million for the fiscal year ended
          September 30, 1995 to approximately $273.4 million for the fiscal
          year ended December 31, 1997.

             The Company is a wholly owned subsidiary of ICG; however, due
          to restrictions imposed on ICG by certain indentures and certain
          preferred stock provisions (collectively, "ICG Indentures")
          related to prior financings, ICG and ICG's Restricted


                                      -6-
     <PAGE>


          Subsidiaries (as defined in the ICG Indentures) are prohibited
          from making investments in or providing credit support to the
          Company or the Company's subsidiaries. ICG and its Restricted
          Subsidiaries are also prohibited from engaging in transactions
          with the Company other than on an arm's length basis, and if the
          proposed transaction exceeds $2 million in value, ICG and its
          Restricted Subsidiaries may only participate with the approval of
          a majority of the disinterested members of the Board of Directors
          of ICG or with a written opinion of a nationally recognized
          investment banking firm stating that the transaction is fair to
          ICG from a financial point of view. See "Certain Relationships
          and Related Transactions," "Risk Factors -- Lack of Credit
          Support from ICG," "-- Control by ICG" and "-- Certain Financial
          and Operating Restrictions" and "Description of the New Notes."


                                      -7-
     <PAGE>

                                  THE EXCHANGE OFFER

          The Exchange Offer    The Company is offering to exchange $1,000
                                principal amount of New Notes for each
                                $1,000 principal amount of Old Notes that
                                are properly tendered and accepted. The
                                Company will issue the New Notes on or
                                promptly after the Expiration Date. There
                                are $490,000,000 aggregate principal amount
                                at maturity ($300,570,900 original issue
                                price) of Old Notes outstanding. See "The
                                Exchange Offer."

          Resale of New Notes   Based on an interpretation by the staff of
                                the Commission set forth in no-action
                                letters issued to third parties, including
                                "Exxon Capital Holdings Corporation"
                                (available May 13, 1988), "Morgan Stanley &
                                Co. Incorporated" (available June 5, 1991),
                                "Mary Kay Cosmetics, Inc." (available June
                                5, 1991), "Warnaco, Inc." (available
                                October 11, 1991) and "K-III Communications
                                Corp." (available May 14, 1993), the
                                Company believes that New Notes issued
                                pursuant to the Exchange Offer in exchange
                                for Old Notes may be offered for resale,
                                resold and otherwise transferred by any
                                holder thereof (other than any such holder
                                which is an "affiliate" of the Company
                                within the meaning of Rule 405 under the
                                Securities Act) without compliance with the
                                registration and prospectus delivery
                                provisions of the Securities Act, provided
                                that such New Notes are acquired in the
                                ordinary course of such holder's or any
                                other such person's business and that such
                                holder or any other such person has no
                                arrangement or understanding with any
                                person to participate in the distribution
                                of such New Notes.  Under no circumstances
                                may this Prospectus be used for an offer to
                                resell or other retransfer of New Notes. In
                                the event that the Company's belief is
                                inaccurate, holders of New Notes who
                                transfer New Notes in violation of the
                                prospectus delivery provisions of the
                                Securities Act and without an exemption
                                from registration thereunder may incur
                                liability thereunder. The Company does not
                                assume or indemnify holders against such
                                liability. The Exchange Offer is not being
                                made to, nor will the Company accept
                                surrenders for exchange from, holders of
                                Old Notes (i) in any jurisdiction in which
                                the Exchange Offer or the acceptance
                                thereof would not be in compliance with the
                                securities or blue sky laws of such
                                jurisdiction or (ii) if any holder is
                                engaged or intends to engage in a
                                distribution of the New Notes. Each broker-
                                dealer that receives New Notes for its own
                                account in exchange for Old Notes, where
                                such Old Notes were acquired by such
                                broker-dealer as a result of market-making
                                activities or other trading activities,
                                must acknowledge that it will deliver a
                                prospectus in connection with any resale of
                                such New Notes. The Company has not entered
                                into any arrangement or understanding with
                                any person to distribute the New Notes to
                                be received in the Exchange Offer. See
                                "Plan of Distribution."

          Expiration Date . .   The Exchange Offer will expire at 5:00
                                p.m., New York City time, on __________,
                                1998 unless extended, in which case the
                                term "Expiration Date" shall mean the
                                latest date and time to which the Exchange
                                Offer is extended. The Company will accept
                                for exchange any and all Old Notes which
                                are properly tendered in the Exchange Offer
                                prior to 5:00 p.m., New York City time, on
                                the Expiration Date. The New Notes issued
                                pursuant to the Exchange Offer will be
                                delivered on or promptly after the
                                Expiration Date.


                                      -8-
     <PAGE>


          Conditions to the
             Exchange Offer .   The Company may terminate the Exchange
                                Offer if it determines that its ability to
                                proceed with the Exchange Offer could be
                                materially impaired due to any legal or
                                governmental action, any new law, statute,
                                rule or regulation, any interpretation by
                                the staff of the Commission of any existing
                                law, statute, rule or regulation or the
                                failure to obtain any necessary approvals
                                of governmental agencies or holders of the
                                Old Notes. The Company does not expect any
                                of the foregoing conditions to occur,
                                although there can be no assurances that
                                such conditions will not occur.

          Procedures for
             Tendering Old      Each holder of Old Notes wishing to
             Notes  . . . . .   participate in the Exchange Offer must
                                complete, sign and date the Letter of
                                Transmittal, or a facsimile thereof, in
                                accordance with the instructions contained
                                herein and therein, and mail or otherwise
                                deliver such Letter of Transmittal, or such
                                facsimile, together with such Old Notes and
                                any other required documentation to Norwest
                                Banks, as exchange agent for the Notes (the
                                "Exchange Agent"), at the address set forth
                                herein. By executing the Letter of
                                Transmittal, each holder will represent to
                                the Company that, among other things, the
                                New Notes acquired pursuant to the Exchange
                                Offer is being obtained in the ordinary
                                course of business of the person receiving
                                such New Notes, whether or not such person
                                has an arrangement or understanding with
                                any person to participate in the
                                distribution of such New Notes and that
                                neither the holder nor any such other
                                person is an "affiliate," as defined in
                                Rule 405 under the Securities Act, of the
                                Company.

          Special Procedures
             for Beneficial     Any beneficial owner whose Old Notes are
             Owners . . . . .   registered in the name of a broker, dealer,
                                commercial bank, trust company or other
                                nominee and who wishes to tender such Old
                                Notes in the Exchange Offer should contact
                                such registered holder promptly and
                                instruct such registered holder to tender
                                on such beneficial owner's behalf. If such
                                beneficial owner wishes to tender on such
                                owner's own behalf, such owner must, prior
                                to completing and executing the Letter of
                                Transmittal and delivering its Old Notes,
                                either make appropriate arrangements to
                                register ownership of the Old Notes in such
                                owner's name or obtain a properly completed
                                bond power from the registered holder. The
                                transfer of registered ownership may take
                                considerable time and may not be able to be
                                completed prior to the Expiration Date.

          Guaranteed Delivery 
             Procedures . . .   Holders of Old Notes who wish to tender
                                their Old Notes and whose Old Notes are not
                                immediately available or who cannot deliver
                                their Old Notes or the Letter of
                                Transmittal to the Exchange Agent prior to
                                the Expiration Date, must tender their Old
                                Notes according to the guaranteed delivery
                                procedures set forth in "The Exchange Offer
                                -- Guaranteed Delivery Procedures."

          Withdrawal Rights .   Tenders of Old Notes may be withdrawn at
                                any time prior to 5:00 p.m., New York City
                                time, on the Expiration Date.


                                      -9-
     <PAGE>

          Certain Federal
             Income Tax         The exchange of New Notes for Old Notes
             Considerations .   will not constitute a taxable event for
                                U.S. federal income tax purposes. As a
                                result, holders of New Notes will not
                                recognize any income, gain or loss with
                                respect to such exchange. The New Notes
                                will be issued with original issue discount
                                ("OID") for U.S. federal income tax
                                purposes. United States Holders of New
                                Notes issued with OID must include such OID
                                in income on a constant yield accrual
                                method, regardless of such holders' method
                                of accounting. As a result, such holders
                                will include OID in income in advance of
                                the receipt of cash attributable to that
                                income. For a discussion of certain U.S.
                                federal income tax considerations relating
                                to the exchange of the New Notes for the
                                Old Notes, see "Certain United States
                                Federal Income Tax Considerations."

          Exchange Agent  . .   Norwest Banks is the Exchange Agent. Its
                                telephone number is (612) 667-4070. The
                                address of the Exchange Agent is set forth
                                in "The Exchange Offer -- Exchange Agent."


                                    THE NEW NOTES

          Aggregate Amount  .   $490,000,000 principal amount at maturity
                                ($300,570,900 original issue price) of 10%
                                Senior Exchange Discount Notes due February
                                15, 2008.

          Yield and Interest    From and after February 15, 2003, the New
                                Notes will bear interest, which will be
                                payable in cash, on each February 15 and
                                August 15, commencing August 15, 2003. The
                                New Notes are being sold at a substantial
                                discount from their principal amount. For a
                                discussion of the U.S. federal income tax
                                treatment of the New Notes and the original
                                issue discount rules, see "Certain United
                                States Federal Income Tax Considerations --
                                Tax Consequences to United States Holders"
                                and "-- Original Issue Discount."

          Optional Redemption   On or after February 15, 2003, the New
                                Notes will be redeemable at the option of
                                the Company, in whole or in part from time
                                to time, at the redemption prices set forth
                                herein, plus accrued and unpaid interest to
                                the date of redemption. In addition, at any
                                time prior to February 15, 2001, the
                                Company may, at its option, redeem up to
                                35% of the aggregate principal amount at
                                maturity of the New Notes from the proceeds
                                of one or more public or private Equity
                                Offerings (as defined) at 110.0% of their
                                Accreted Value (as defined) on the
                                redemption date; provided that after any
                                such redemption at least 65% of the
                                aggregate principal amount of the Notes
                                initially issued remains outstanding. See
                                "Description of the New Notes -- Optional
                                Redemption."

          Ranking . . . . . .   The New Notes will be senior, unsecured
                                obligations of the Company, will rank pari
                                passu in right of payment with all existing
                                and future unsecured, unsubordinated
                                obligations and will be senior in right of
                                payment to all existing and future
                                subordinated indebtedness of the Company.
                                At December 31, 1997, after giving pro
                                forma effect to the Private Offering and
                                the NETCOM acquisition, the Company would
                                have had, on a consolidated basis,
                                approximately $306.6 million of
                                indebtedness including capitalized lease
                                obligations. The Company is a holding
                                company and the New Notes will be
                                effectively subordinated to all liabilities
                                (including trade payables) of the
                                subsidiaries of the Company and at December
                                31, 1997, on the same pro forma basis, the
                                subsidiaries of the Company would have had


                                      -10-
     <PAGE>

                                approximately $34.5 million of liabilities
                                (excluding intercompany payables),
                                including approximately $6.0 million of
                                indebtedness, consisting solely of
                                capitalized lease obligations. The Company
                                may incur substantial amounts of
                                indebtedness in the future. See "Risk
                                Factors -- Substantial Indebtedness;
                                Ability to Service Debt" and "-- Holding
                                Company Structure; Priority of Creditors."

          Certain Covenants .   The indenture under which the New Notes
                                will be issued (the "Indenture") will
                                contain certain covenants which, among
                                other things, will restrict the ability of
                                the Company and its Restricted Subsidiaries
                                (as defined herein) to incur additional
                                indebtedness; create liens; engage in sale-
                                leaseback transactions; pay dividends or
                                make distributions in respect of their
                                capital stock; make investments or make
                                certain other restricted payments; sell
                                assets; create restrictions on the ability
                                of Restricted Subsidiaries to make certain
                                payments; issue or sell stock of certain
                                subsidiaries; enter into transactions with
                                stockholders or affiliates; and with
                                respect to the Company, consolidate, merge
                                or sell all or substantially all of its
                                assets. The Indenture will contain
                                significant exceptions to these covenants.
                                See "Description of the New Notes --
                                Covenants."

          Change of Control .   Upon a Change of Control (as defined
                                herein), the Company is required to make an
                                offer to purchase the New Notes at a
                                purchase price equal to 101% of their
                                Accreted Value on the date of purchase plus
                                accrued interest, if any. See "Description
                                of the New Notes -- Repurchase of New Notes
                                Upon a Change of Control."

                                     RISK FACTORS

             See "Risk Factors," immediately following this Summary, for a
          discussion of certain risks that should be considered by
          prospective investors in connection with the Exchange Offer and
          an investment in the New Notes, including the risks related to
          the Company's lack of operating history, historical operating
          losses of NETCOM and lack of credit support from ICG.



                                      -11-
     <PAGE>

                                SUMMARY FINANCIAL DATA

             The Company is a newly formed Delaware corporation and,
          accordingly, no financial statements for the Company have been
          included herein. NETCOM is a wholly owned subsidiary of the
          Company, acquired in a pooling-of-interests transaction with ICG.

             The following table sets forth summary financial and other
          operating data of NETCOM, the predecessor to the Company, for
          each fiscal year in the five-year period ended December 31, 1997.
          Such data have been derived from, and should be read in
          conjunction with, NETCOM's audited consolidated financial
          statements and notes thereto included elsewhere in this
          Prospectus for each of the fiscal years in the three-year period
          ended December 31, 1997.  NETCOM's development and expansion
          activities, including acquisitions, during the periods shown
          below materially affect the comparability of this data from one
          period to another.

                                         YEARS ENDED DECEMBER 31,
                                -----------------------------------------
                                1993     1994     1995(1)    1996     1997
                                ----     ----     -------    ----     ----
                                       (IN THOUSANDS, EXCEPT RATIOS)

     STATEMENT  OF OPERATIONS
     DATA:
     Revenue . . . . . . .   $ 2,412   $12,359  $ 52,422  $ 120,540  $160,660
     Costs and expenses:
       Cost of revenue . . .   1,133     6,711    36,641     88,396   118,432
       Product development .      69       328     2,240      6,020     6,518
       Sales and marketing .     371     3,080    18,771     51,237    49,375
       General and
        administrative . . .     597     2,345    11,016     23,610    22,264
       Restructuring and          --        --        --         --     1,879
        related charges  . . -------   -------    ------  ---------  --------
            Total costs and
              expenses . . .   2,170    12,464    68,668    169,263   198,468
     Income (loss) from
      operations . . . . . .     242      (105)  (16,246)   (48,723)  (37,808)
     (Loss) gain on
      investment . . . . . .      --        --        --     (1,200)    1,274
     Interest and other
      (expense) income,           (3)        5     2,197      5,681     3,480
      net(2) . . . . . . . . -------   -------    ------  ---------  --------
     Income (loss) before
      provision for income
      taxes . . . . .            239      (100)  (14,049)   (44,242)  (33,054)
     Provision for income
      taxes  . . . . . . . .     (12)       --       (15)       (23)      (38)
                             -------   -------    ------  ---------  --------
     Net income (loss) . . . $   227   $  (100) $(14,064) $ (44,265) $(33,092)
                             =======   =======  ========  =========  ========

     OTHER DATA:
     Net cash provided by
      (used in) operating 
      activities  . . . . .  $   789   $ 4,922  $   (461) $ (21,651) $ (2,130)
     Net cash used in
      investing activities.   (1,028)  (11,375)  (44,742)   (53,992)   (9,029)
     Net cash provided by
      financing activities.      314    27,315   170,294      2,351     1,351
     Capital expenditures(3)   1,028    11,143    43,361     53,992    17,258
     EBITDA(4):
       Domestic  . . . . . .     399     1,096    (5,324)    (5,091)   11,633
       International . . . .      --        --      (977)   (15,206)  (13,367)
                             -------  --------  --------  ---------  --------
             Total. . . . .  $   399  $  1,096  $ (6,301)  $(20,297) $ (1,734)
                             =======  ========  ========  =========  ========
     EBITDA before
       restructuring and
       related 
       charges:
       Domestic  . . . . . .     399     1,096    (5,324)    (5,091)   11,633
       International . . . .      --        --      (977)   (15,206)  (11,488)
                             -------  --------  --------  ---------  --------
             Total . . . . . $   399  $  1,096  $ (6,301) $ (20,297) $    145
                             =======  ========  ========  =========  ========
     Ratio of earnings to
      fixed charges(5) . . .     8.7x       --        --         --        --


                                      -12-
     <PAGE>

                                                                   AT
                                                                DECEMBER
                                                                   31,
                                                                  1997
                                                               ----------
                                                                   (IN
                                                               THOUSANDS)
            BALANCE SHEET DATA:
            Cash and cash equivalents . . . . . . . . . . . . $ 63,368
            Working capital . . . . . . . . . . . . . . . . .   38,698
            Property and equipment, net . . . . . . . . . . .   72,945
            Total assets  . . . . . . . . . . . . . . . . . .  146,847
            Short-term capital lease obligations  . . . . . .    2,491
            Long-term capital lease obligations, net of
              current portion . . . . . . . . . . . . . . . .    3,550
            Common stock and additional paid-in capital . . .  207,325
            Accumulated deficit . . . . . . . . . . . . . . .  (95,134)
            Stockholders' equity  . . . . . . . . . . . . . .  112,335

          ----------

          (1)  Results for fiscal 1995 include five months of results of
               Professional Internet Consulting, Inc., which was acquired
               by NETCOM in August 1995.
          (2)  Giving pro forma effect to the receipt of the net proceeds
               from the Private Offering and interest expense, net on
               $300.6 million gross proceeds of Notes, without giving any
               effect to any increased interest income on available cash,
               as if such events had occurred on January 1, 1997, interest
               expense, net would have been $26.6 million for fiscal 1997.
          (3)  Capital expenditures include assets acquired under capital
               leases. 
          (4)  Earnings before interest, taxes, depreciation and
               amortization ("EBITDA") is provided because it is a measure
               commonly used in the Internet and telecommunications
               industries. EBITDA is presented to enhance the understanding
               of NETCOM's operating results and is not intended to
               represent cash flows or results of operations in accordance
               with generally accepted accounting principles ("GAAP") for
               the periods indicated. EBITDA is not a measurement under
               GAAP and is not necessarily comparable with similarly titled
               measures of other companies. Net cash flows from operating,
               investing and financing activities as determined using GAAP
               are also presented in Other Data.
          (5)  Earnings were insufficient to cover fixed charges in 1994,
               1995, 1996 and 1997 by $.1 million, $14.0 million, $44.2
               million and $33.1 million, respectively. On a pro forma
               basis giving effect to the Private Offering as if it had
               occurred on January 1, 1997 and without giving effect to any
               increased interest income on additional available cash,
               earnings would have been insufficient to cover fixed charges
               by $63.1 million for fiscal 1997. Earnings consist of income
               (loss) before provision for income taxes plus fixed charges.
               Fixed charges consist of interest charges and amortization
               of debt expense and discount or premium related to
               indebtedness, whether expensed or capitalized and that
               portion of rental expense the Company believes to be
               representative of interest (i.e., one-third of rental
               expense).


                                      -13-
     <PAGE>

                                     RISK FACTORS

             An investment in the New Notes offered hereby involves a high
          degree of risk. The following risk factors, together with the
          other information set forth in this Prospectus should be
          considered when evaluating an investment in the Company. This
          Prospectus includes certain forward-looking statements. The
          discussion set forth below contains cautionary statements
          identifying important factors including, but not limited to, the
          Company's lack of operating history, historical operating losses
          of NETCOM and lack of credit support from ICG, that could cause
          actual results to differ materially from the forward-looking
          statements.

          LACK OF OPERATING HISTORY; HISTORICAL OPERATING LOSSES OF NETCOM

             The Company has been recently formed, has no operating history
          and has only owned NETCOM since January 1998. NETCOM has incurred
          and expects to continue to incur significant operating and net
          losses for the near term. NETCOM had net losses and EBITDA losses
          of approximately $33.1 million and $1.7 million, respectively,
          for fiscal 1997.  There can be no assurance that the Company will
          achieve or sustain profitability or positive EBITDA in the future
          or at any time have sufficient resources to make principal and
          interest payments on the New Notes. See "Selected Financial
          Data," including the notes thereto, and "Management's Discussion
          and Analysis of Financial Condition and Results of Operations."

          LACK OF CREDIT SUPPORT FROM ICG

             ICG is a guarantor under the ICG Indentures pursuant to which
          ICG's subsidiaries, ICG Holdings, Inc. and ICG Funding, LLC, have
          obtained outstanding financing through offerings of senior
          discount notes in the aggregate accreted amount of $887.5 million
          and redeemable preferred securities with a liquidation value of
          $434.6 million at December 31, 1997. The ICG Indentures impose
          severe restrictions on the relationship between ICG and its
          subsidiaries that are designated by ICG as Unrestricted
          Subsidiaries (as defined in the ICG Indentures). The Company is a
          wholly owned subsidiary of ICG which has been designated as an
          Unrestricted Subsidiary by ICG, and, as a result, ICG and its
          Restricted Subsidiaries are prohibited from providing cash or
          credit support to the Company or the Company's subsidiaries. ICG
          and its Restricted Subsidiaries are also prohibited from engaging
          in transactions with the Company or the Company's subsidiaries
          other than on an arm's length basis, and if a proposed
          transaction exceeds $2 million in value, ICG and its Restricted
          Subsidiaries may only participate with the approval of a majority
          of the disinterested members of the Board of Directors of ICG or
          the written opinion of a nationally recognized investment banking
          firm stating that the transaction is fair to ICG from a financial
          point of view. These restrictions could impair the Company's
          ability to raise capital, enter into arrangements with vendors,
          and conduct its business, which could have a material adverse
          effect on the Company's business, growth, financial condition and
          results of operations and ability to make payments on the New
          Notes.

             With respect to arrangements that ICG Equipment enters into
          with ICG to sell or lease under operating leases, licenses or
          rights-of-use for telecommunications equipment, software and
          capacity and related services, the Company depends upon ICG for
          payments from such transactions. As of December 31, 1997, ICG
          had, on a consolidated basis, aggregate accreted indebtedness,
          including capitalized lease obligations, of approximately $968.1
          million. For the 12 months ended December 31, 1997, ICG had
          interest expense of approximately $117.5 million and EBITDA
          losses of approximately $123.8 million.  In the event ICG were
          unable to make payments under such arrangements, it would have a
          material adverse effect on the Company's business, financial
          condition and results of operations and ability to make payments
          on the New Notes. See "Certain Relationships and Related
          Transactions" and "Risk Factors -- Certain Financial and
          Operating Restrictions."


                                      -14-
     <PAGE>


          SUBSTANTIAL INDEBTEDNESS; ABILITY TO SERVICE DEBT

             At December 31, 1997, on a pro forma basis giving effect to
          the Private Offering and the acquisition of NETCOM, the Company
          would have had, on a consolidated basis, approximately $306.6
          million of indebtedness, including capitalized lease obligations.
          The accretion of original issue discount on the New Notes will
          cause an increase in indebtedness of approximately $65 million by
          February 15, 2000.  The Indenture permits the incurrence of
          substantial amounts of additional indebtedness by the Company and
          its subsidiaries. The Company anticipates that it and/or its
          subsidiaries may incur substantial additional indebtedness in the
          future.

             The level of the Company's indebtedness could have important
          consequences to holders of the New Notes including the following:
          (i) the debt service requirements of any additional indebtedness
          could make it more difficult for the Company to make payments on
          the New Notes; (ii) the ability of the Company to obtain any
          necessary financing in the future for working capital, capital
          expenditures, debt service requirements or other purposes may be
          limited; (iii) a substantial portion of the Company's cash flow
          from operations, if any, must be dedicated to the payment of
          principal and interest on its indebtedness and other obligations
          and will not be available for other purposes; (iv) the Company's
          level of indebtedness could limit its flexibility in planning
          for, or reacting to changes in, its business; (v) the Company is
          more highly leveraged than some of its competitors, which may
          place it at a competitive disadvantage; and (vi) the Company's
          high degree of indebtedness will make it more vulnerable in the
          event of a downturn in its business.

             The Company, on a pro forma basis, has experienced EBITDA
          losses. NETCOM's earnings before fixed charges were insufficient
          to cover fixed charges for fiscal 1997 by $33.1 million.  For the
          same period on a pro forma basis after giving effect to the
          Private Offering, the Company's earnings before fixed charges
          would have been insufficient to cover fixed charges by $63.1
          million. In addition, for the same period on the same pro forma
          basis, NETCOM's EBITDA minus capital expenditures and interest
          expense would have been $49.5 million.  There can be no assurance
          that the Company will be able to improve its earnings before
          fixed charges or that the Company will be able to meet its debt
          service obligations, including its obligations on the New Notes.
          In the event the Company's cash flow is inadequate to meet its
          obligations, the Company could face substantial liquidity
          problems. If the Company is unable to generate sufficient cash
          flow or otherwise obtain funds necessary to make required
          payments, or if the Company otherwise fails to comply with the
          various covenants in its indebtedness, it would be in default
          under the terms thereof, which would permit the holders of such
          indebtedness to accelerate the maturity of such indebtedness and
          could cause defaults under other indebtedness of the Company.
          Such defaults could result in a default on the New Notes and
          could delay or preclude payment of principal of, or interest on,
          the New Notes. The ability of the Company to meet its obligations
          will be dependent upon the future performance of the Company and
          upon receiving payments from ICG which will be subject to
          prevailing economic conditions and to financial, business and
          other factors, including ICG's results and other factors, beyond
          the control of the Company. See "-- Lack of Credit Support from
          ICG."

          RISKS RELATED TO POTENTIAL REQUIREMENT TO PAY ACCESS CHARGES OR
          CONTRIBUTE TO FEDERAL UNIVERSAL FUND

             Although the Company is not currently subject to direct
          regulation by the Federal Communications Commission ("FCC") or
          any other governmental agency, it is possible that the Company
          and other ISPs could become subject to regulation by the FCC or
          another regulatory agency as a provider of basic
          telecommunications services.  The FCC is currently considering
          whether ISPs should be required to pay access charges to local
          telephone companies for each minute that dial-access users spend
          connected to ISPs through telephone company switches.  In
          addition, some telephone companies are seeking relief through
          state regulatory agencies.  The FCC may also decide that ISPs
          should contribute to the federal Universal Service Fund.  Such
          requirements, if adopted at either the federal or the state
          level, would have a material adverse effect on the Company's
          business, financial condition and results of operations and its
          ability to make payments on the New Notes.  See "--Regulation."


                                      -15-
     <PAGE>


          INTEGRATION OF ACQUIRED BUSINESSES

             The Company intends to grow through expansion of its existing
          operations, integration with ICG and through acquisitions of U.S.
          or foreign businesses. The Company's ability to manage its
          existing businesses and its anticipated future growth will depend
          on its ability to evaluate new markets and investment vehicles,
          monitor operations, control costs, maintain effective quality
          controls, and significantly expand the Company's internal
          management, technical and accounting systems. The Company's
          integration with ICG and planned future growth will place a
          significant strain on the Company's financial, management and
          operational resources, including the identification of
          acquisition targets and the negotiation of acquisition
          agreements. In addition, acquisitions may entail considerable
          expenses in advance of anticipated related revenue and may cause
          fluctuations in the Company's operating results.

             In addition, upon the acquisition of other businesses, such
          acquired businesses will need to be integrated with the Company's
          existing businesses and its then existing operations. For
          acquired businesses, this may entail, among other things,
          integration of switching, transmission, technical, sales,
          marketing, billing, accounting, quality control, management,
          personnel, payroll, regulatory compliance and other systems and
          operating hardware and software, some or all of which may be
          incompatible. The Company may also need to address cultural,
          linguistic and legal concerns for acquired foreign businesses.
          The failure to effectively integrate acquired businesses could
          have a material adverse effect on the Company's business, growth,
          financial condition and results of operations and ability to make
          payments on the New Notes.

             The Company expects to use a portion of the proceeds of the
          Private Offering to continue acquiring telecommunications,
          Internet and related businesses that complement ICG's business
          strategy to offer a wide array of telecommunications, Internet
          and related services, primarily to communications intensive
          business customers. Acquisition targets could include U.S. or
          foreign CLECs, ISPs and long distance companies, among others. 
          The Company intends to make future acquisitions primarily through
          the use of ICG Common Stock, cash on hand and the proceeds from
          securities offerings.

             The Company may in the future experience a strain on its
          management, operations and financial resources as a result of
          growth and acquisitions. The Company's ability to effectively
          manage growth will require it to continue to implement and
          improve its operational, financial and management information
          systems and to train, motivate and manage its employees, as well
          as to expand its existing direct access services business. These
          demands will require the addition of new management personnel and
          the development of additional expertise by existing management.
          In particular, the demands on NETCOM's data communications
          infrastructure and customer support resources have grown rapidly
          with NETCOM's changing subscriber base, and NETCOM may experience
          difficulties meeting the demand for its connectivity services.
          Capacity constraints may occur, both at the level of particular
          local access numbers and in connection with system-wide services
          that are provided from NETCOM's NOCs. NETCOM has experienced
          difficulties in providing an adequate level of customer service
          and support, and has been taking steps to improve its data
          communications infrastructure and customer support resources. A
          failure to enhance customer support resources adequately, or to
          expand and enhance its data communications infrastructure
          adequately, may materially adversely affect the Company's
          business, operating results, financial condition and ability to
          make payments on the New Notes. There can be no assurance that
          the Company's customer support or other resources will be
          sufficient to manage any future growth in its business or that
          NETCOM will be able to implement in whole or in part its
          expansion program, and any failure to do so could have a material
          adverse effect on the Company's business, operating results,
          financial condition and its ability to make payments on the New
          Notes.

             Although the Company expects to invest significant resources
          in NETCOM's data communications infrastructure and customer
          support resources, NETCOM continues to experience attrition of
          its subscribers from time to time as a result of a number of
          factors, including difficulties associated with management of
          growth and the shift of its focus to business customers. There
          can be no assurance that the Company will be able to improve its
          ability to retain subscribers or to attract sufficient new
          subscribers to offset periodic losses of existing subscribers.


                                      -16-
     <PAGE>

          COMPETITION

             The market for Internet access and related services is highly
          competitive. There are no substantial barriers to entry and the
          Company anticipates that competition will continue to intensify
          as the use of the Internet grows. The tremendous growth and
          potential market size of the Internet access market has attracted
          many new start-ups as well as existing businesses from different
          industries. Current and prospective competitors include, in
          addition to other national, regional and local ISPs, long
          distance and local exchange telecommunications companies, cable
          television, direct broadcast satellite, wireless communications
          providers, and on-line service providers.

             ISPs. According to industry sources, there are over 4,300 ISPs
          in the United States and Canada as of October 31, 1997,
          consisting of national, regional and local providers. The
          Company's current primary competitors include other ISPs with a
          significant national presence which focus on business customers,
          such as UUNet Technologies, Inc. ("UUNet"), Bolt, Beranek &
          Newman, Inc. ("BBN") and Performance Systems International,
          Inc.("PSINet"). While the Company believes that its level of
          local service and support and target market focus distinguish it
          from these competitors, many of these competitors have
          significantly greater market share, brand recognition, and
          financial, technical and personnel resources than the Company.
          The Company also competes with unaffiliated regional and local
          ISPs in its targeted geographic regions.

             Telecommunications Carriers. The major long distance companies
          (also known as interexchange carriers or IXCs), including AT&T
          Corporation ("AT&T"), MCI Communications Corp. ("MCI"), and
          Sprint Corporation ("Sprint"), offer Internet access services and
          compete with the Company. The recent sweeping reforms in the
          federal regulation of the telecommunications industry have
          created greater opportunities for ILECs, including the RBOCs and
          other competitive CLECs, to enter the Internet connectivity
          market. In order to address the Internet connectivity
          requirements of the business customers of long distance and local
          carriers, the Company believes that there is a move toward
          horizontal integration by ILECs through acquisitions or joint
          ventures with and the wholesale purchase of connectivity from
          ISPs. The WorldCom, Inc. ("WorldCom")/MFS Communications,
          Inc./UUNet consolidation and GTE Corporation's ("GTE") recent
          acquisition of BBN are indicative of this trend. Accordingly, the
          Company expects that it will experience increased competition
          from the traditional telecommunications carriers. Many of these
          telecommunications carriers, in addition to their substantially
          greater network coverage, market presence, and financial,
          technical and personnel resources, also have large existing
          commercial customer bases.

             Cable Companies, Direct Broadcast Satellite and Wireless
          Communications Companies. Many of the major cable companies have
          announced that they are exploring the possibility of offering
          Internet connectivity, relying on the viability of cable modems
          and economical upgrades to their networks. Continental
          Cablevision, Inc. and Tele-Communications, Inc. ("TCI") have
          recently announced trials to provide Internet cable service to
          their residential customers in select areas. However, the cable
          companies are faced with large-scale upgrades of their existing
          plant equipment and infrastructure in order to support
          connections to the Internet backbone via high-speed cable access
          devices. Additionally, their current subscriber base and market
          focus is residential which requires that they partner with
          business-focused providers or undergo massive sales and marketing
          and network development efforts in order to target the business
          sector. Several announcements also have recently been made by
          other alternative service companies approaching the Internet
          connectivity market with various wireless terrestrial and
          satellite-based service technologies. These include Hughes
          Network Systems' announcement that it will provide high-speed
          data through direct broadcast satellite technology; CAI Wireless
          Systems Inc.'s ("CAI Wireless") announcement of an MMDS wireless
          cable operator launching data services via 2.5 to 2.7 GHz and
          high-speed wireless modem technology; and WinStar Communications,
          a 38 GHz radio company that wholesales its network capacity to
          other carriers and now offers high-speed Internet access to
          business customers.

             On-line Service Providers. The dominant on-line service
          providers, including Microsoft Network, America Online,
          Incorporated ("America Online"), Compuserve, Inc. ("Compuserve")
          and Prodigy, Inc., ("Prodigy") have all entered the Internet


                                      -17-
     <PAGE>


          access business by engineering their current proprietary networks
          to include Internet access capabilities. The Company competes to
          a lesser extent with these service providers, which currently are
          primarily focused on the consumer marketplace and offer their own
          content, including chat rooms, news updates, searchable reference
          databases, special interest groups and shopping. While Compuserve
          recently announced it will also target Internet connectivity for
          the small to medium-sized business market, this will require a
          significant transition from a consumer market focus to a business
          market focus.

             The Company believes that its ability to attract business
          customers and to market value-added services are keys to its
          future success. However, there can be no assurance that its
          competitors will not introduce similar pricing plans at
          comparable or more attractive prices in the future or that the
          Company will not be required to reduce its prices to match
          competition. Recently, many competitive ISPs have shifted their
          focus from individual customers to business customers. Moreover,
          there can be no assurance that more of the Company's competitors
          will not shift their focus to attracting business customers,
          resulting in even more competition for the Company. There can be
          no assurance that NETCOM will be able to offset the effects of
          any such competition or resulting price reductions through an
          increase in the number of its subscribers, higher revenue from
          enhanced services, cost reductions or otherwise. Increased
          competition could result in erosion of NETCOM's market share and
          adversely affect NETCOM's operating results.

             Increased competition has resulted and could continue to
          result in significant reductions in the average selling price of
          NETCOM's services. In addition, NETCOM expects to see increased
          pressure to obtain and retain additional subscribers that could
          result in increased sales and marketing expenses and related
          subscriber acquisition costs, which could materially adversely
          affect NETCOM's rate of customer churn and operating results.
          Certain of the Company's on-line competitors, including America
          Online, the Microsoft Network, Compuserve and Prodigy, have
          introduced unlimited access to the Internet and their proprietary
          content at flat rates as low as $9.95 per month. Certain of the
          RBOCs have also introduced competitive flat-rate pricing for
          unlimited access (without a set-up fee for at least some period
          of time). As a result, competition for active users of Internet
          services has intensified. There can be no assurance that the
          Company's competitors will not introduce more attractive prices
          in the future or that the Company will not be required to reduce
          its prices to match competition. There can be no assurance that
          NETCOM will be able to offset the effects of any such competition
          or resulting price reductions through an increase in the number
          of its subscribers, higher revenue from enhanced services, cost
          reductions or otherwise. Increased competition could result in
          erosion of the Company's market share and adversely affect the
          Company's operating results and ability to make payments on the
          New Notes. There can be no assurance that the Company will have
          financial resources, technical resources, technical expertise or
          marketing and support capabilities to continue to compete
          successfully.

          HOLDING COMPANY STRUCTURE; PRIORITY OF CREDITORS

             The Company is a holding company. The principal assets of the
          Company consist of common stock of NETCOM and will consist of
          common stock of other subsidiaries upon any future acquisitions.
          The Company must rely upon dividends and other payments from its
          subsidiaries to generate the funds necessary to meet its
          obligations, including the payment of principal of and interest
          on the New Notes. The subsidiaries, however, are legally distinct
          from the Company and have no obligation, contingent or otherwise,
          to pay amounts due pursuant to the New Notes or to make funds
          available for such payment. The Company's subsidiaries will not
          guarantee the New Notes. The ability of the Company's
          subsidiaries to make such payments to the Company will be subject
          to, among other things, the availability of funds, the terms of
          such subsidiaries' indebtedness and applicable state laws. The
          Indenture will permit the Company's subsidiaries to incur
          substantial amounts of additional indebtedness and will allow
          that indebtedness to be secured with the assets of the
          subsidiaries (which constitute substantially all of the Company's
          consolidated assets). In addition, lenders to subsidiaries may
          impose restrictions on those subsidiaries' ability to make
          payments to the Company. Claims of creditors of the Company's
          subsidiaries, including trade creditors, will generally have
          priority as to the assets of such subsidiaries over the claims of
          the Company and the holders of the Company's indebtedness,
          including the New Notes. Accordingly, the New Notes will be
          effectively subordinated to the liabilities (including trade
          payables) of the subsidiaries of the Company. At December 31,


                                      -18-
     <PAGE>


          1997, on a pro forma basis giving effect to the Private Offering
          and the acquisition of NETCOM, the subsidiaries of the Company
          would have had approximately $34.5 million of liabilities
          (excluding intercompany payables), including approximately $6.0
          million of indebtedness, consisting solely of capitalized lease
          obligations. In addition, the Indenture will permit the Company
          and its Restricted Subsidiaries to make substantial investments
          in entities they do not control, including an unlimited amount of
          investments in CSW/ICG ChoiceCom, L.P. ("ChoiceCom"), a new
          telecommunications company in Texas that has a strategic
          relationship with ICG.

             The New Notes will be senior, unsecured indebtedness of the
          Company. At December 31, 1997, on a pro forma basis giving effect
          to the acquisition of NETCOM and the Private Offering, the
          Company would have had, on a consolidated basis, an aggregate of
          approximately $306.6 million of secured indebtedness, including
          capitalized lease obligations. In the event such secured
          indebtedness goes into default and the holders thereof foreclose
          on the collateral, the holders of secured indebtedness will be
          entitled to payment out of the proceeds of their collateral prior
          to any holders of general unsecured indebtedness, including the
          New Notes, notwithstanding the existence of any event of default
          with respect to the New Notes. The Indenture also permits the
          Company and its subsidiaries to incur substantial amounts of
          additional secured indebtedness and to grant additional liens.
          See "Description of the New Notes -- Covenants." In the event of
          bankruptcy, liquidation or reorganization of the Company, holders
          of secured indebtedness will have a claim, prior to the claim of
          the holders of the New Notes, on the assets of the Company
          securing such indebtedness. In addition, to the extent that the
          value of such collateral is insufficient to satisfy such secured
          indebtedness, holders of amounts remaining outstanding on such
          secured indebtedness (as well as other unsubordinated creditors
          of the Company) would be entitled to share pari passu with the
          holders of New Notes with respect to any other assets of the
          Company. Assets remaining after satisfaction of the claims of
          holders of secured indebtedness may not be sufficient to pay
          amounts due or any or all of the New Notes then outstanding.

          RISKS RELATED TO CHANGE IN CUSTOMER FOCUS TO ATTRACT BUSINESS
          CUSTOMERS

             In January 1997, NETCOM announced plans to migrate its
          customer focus away from high volume, low margin consumer
          customers to higher margin products for small and medium-sized
          business customers. Although NETCOM has increased the number of
          its direct access business customers and its revenue per customer
          in 1997, and expects to invest significant resources to continue
          to increase the number of direct access business customers and
          its revenue per customer, there can be no assurance that the
          Company will be able to continue to increase the number of its
          direct access business customers or its revenue per customer in
          the future. Furthermore, many of the Company's competitors have
          shifted their focus to pursue business customers. There can be no
          assurance that more competition for business accounts will not
          lead to a significant slowdown in the growth of, or a decrease
          in, the Company's direct access business customers or its revenue
          per customer, and such slowdown or decrease could have a material
          adverse effect on the Company's business, financial condition and
          results of operations and its ability to make payments on the New
          Notes.

          DEPENDENCE UPON NEW AND ENHANCED SERVICES

             NETCOM has recently introduced new enhanced business
          connectivity solutions services, including NETCOMplete packages
          offering customers anti-virus file conversion, support, E-mail
          access, data storage, Automatic Reconnect and other premium,
          higher-priced services. The failure of these services to gain
          market acceptance in a timely manner or at all could have a
          material adverse effect on the business, financial condition and
          results of operations of the Company and its ability to make
          payments on the New Notes. Introduction by NETCOM of new or
          enhanced services with reliability, quality or compatibility
          problems could significantly delay or hinder market acceptance of
          all of NETCOM's services, which would adversely affect the
          Company's ability to attract new customers and subscribers. The
          Company's services may contain undetected errors or defects when
          first introduced or when enhancements are introduced. There can
          be no assurance that, despite testing by NETCOM and its
          customers, errors will not be found in new services after
          commencement of commercial deployment, resulting in additional
          development costs, loss of, or delays in, market acceptance,
          diversion of technical resources and loss of subscribers. Any


                                      -19-
     <PAGE>


          such event would have a material adverse effect on the Company's
          business, financial condition and results of operations and its
          ability to make payments on the New Notes.

          RISKS RELATED TO INTERNET TELEPHONE BUSINESS AND HIGH-SPEED DATA
          TRANSMISSION SERVICES BUSINESS

             In March 1998, ICG and NETCOM announced their plans to offer
          long distance services via IP technology.  Furthermore, ICG and
          NETCOM plan to offer high-speed data transmission services via
          DSL technology to all business and end user customers within
          ICG's existing regional clusters by the end of fiscal 1998.  ICG
          and NETCOM anticipate expending significant capital and operating
          costs in connection with providing such services and will have to
          address issues concerning commercial use of such services,
          including security, reliability, ease of access and quality of
          service.  For example, IP technology may cause poor quality voice
          transmission and DSL technology may cause interference with and
          be interfered by other signals present in ILEC's copper
          transmission facilities.  There can be no assurance that ICG and
          NETCOM will be able to successfully resolve such issues and
          market, sell and deliver these services.  Because long distance
          services using IP technology and high-speed data transmission
          services using DSL technology are relatively new and evolving, it
          is difficult to predict their future  growth and size.  If the
          markets for such services to be offered by ICG and the Company,
          through NETCOM, fail to grow or grow more slowly than
          anticipated, such events could have a material adverse effect on
          the Company and its ability to make payments on the New Notes.

             Although the Company is not currently subject to direct
          regulation by the FCC or any other governmental agency, it is
          possible that the Company and other ISPs could become subject to
          regulation by the FCC or another regulatory agency as a provider
          of basic telecommunications services.  The FCC is currently
          considering whether ISPs should be required to pay access charges
          to local telephone companies for each minute that dial-access
          users spend connected to ISPs through telephone company switches. 
          In addition, some telephone companies are seeking relief through
          state regulatory agencies.  The FCC may also decide that ISPs
          should contribute to the federal Universal Service Fund.  Such
          requirements, if adopted at either the federal or the state
          level, would have a material adverse effect on ICG and NETCOM's
          abilities to implement their long distance services via IP
          technology and high-speed data transmission services via DSL
          technology, or if implemented, to profitably sell such services,
          and the Company's ability to make payments on the New Notes.  See
          "--Regulation."

          POTENTIAL LIABILITY FOR CONTENT

             The Communications Decency Act (the "Act"), which was passed
          as part of the Federal Telecommunications Act of 1996, imposed
          criminal penalties on anyone who distributes obscene, lascivious
          or indecent communications on the Internet. As enacted, the Act
          imposed fines on any entity that (i) by means of a
          telecommunications device, knowingly sends indecent or obscene
          material to a minor; (ii) by means of an interactive computer
          service, sends or displays indecent material to a minor; or (iii)
          permits any telecommunications facility under such entity's
          control to be used for the foregoing purposes. That provision, as
          applied to indecent material, was declared unconstitutional in
          June 1997 by the United States Supreme Court. While the Clinton
          Administration has announced that it will not seek passage of
          similar legislation to replace this provision, action by Congress
          in this area remains possible. Prior to the enactment of the Act,
          a federal district court held that an ISP could be found liable
          for defamation on the grounds that it exercised active editorial
          control over postings to its service. The Act contains a
          provision which, one court has held, shields ISPs from such
          liability for material posted to the Internet by their
          subscribers or other third parties.

             The applicability to the Internet of existing laws governing
          issues such as property ownership, libel and privacy is
          uncertain. For example, in 1996 NETCOM settled a lawsuit alleging
          copyright infringement against NETCOM relating to electronic
          messages posted by an unrelated individual to a bulletin board
          service operated by one of NETCOM's customers. New legislation or
          regulation with respect to content could have a material adverse
          effect on the Company's business, results of operations,
          financial condition and ability to make payments on the New
          Notes.


                                      -20-
     <PAGE>


             As the law in this area develops, the potential that liability
          might be imposed on the Company for information carried on or
          disseminated through its network could require the Company to
          implement measures to comply with applicable law and reduce its
          exposure to such liability, which could require the expenditure
          of substantial resources or the discontinuation or modification
          of certain service offerings. Any costs incurred as a result of
          such expenditures or in contesting any such asserted claims, the
          consequent imposition of liability, or any adverse publicity
          resulting from any of the foregoing, could have a material
          adverse affect on the Company and its ability to make payments on
          the New Notes.

          DEPENDENCE ON BILLING, CUSTOMER SERVICE AND INFORMATION SYSTEMS

             Sophisticated information and processing systems are vital to
          the Company's growth and its ability to monitor costs, bill
          customers, provision customer orders and achieve operating
          efficiencies.

             NETCOM's billing and information systems are primarily
          products and services provided by third party vendors. These
          systems have generally met NETCOM's historical needs, primarily
          due to a relatively low volume of customer accounts requiring
          complex billing requests. However, information systems are vital
          as NETCOM expects to offer numerous products and services at
          varying prices. Additionally, NETCOM expects the amount of
          customers with more complex billing requests in general to
          increase. NETCOM is currently evaluating a billing platform based
          upon an information system purchased from a third party vendor
          with internal enhancements to meet NETCOM's needs. The failure of
          (i) the Company's vendors to deliver proposed products and
          services in a timely and effective manner, (ii) the Company to
          adequately identify all of its information and processing needs
          or (iii) the Company to upgrade systems as necessary, could have
          a material adverse impact on the ability of NETCOM to reach its
          objectives, and on the Company's financial condition and results
          of operations and ability to make payments on the New Notes.

             While the Company believes that its software applications are
          year 2000 compliant, there can be no assurance until the year
          2000 occurs that all systems will then function adequately.
          Further, if the software applications of local exchange carriers,
          long distance carriers or others on whose services the Company
          depends are not year 2000 compliant, it could have a material
          adverse effect on the Company's financial condition and results
          of operations and ability to make payments on the New Notes.

          KEY PERSONNEL

             The efforts of a small number of key management and operating
          personnel will largely determine the Company's success. The
          success of the Company also depends in part upon its ability to
          hire and retain highly skilled and qualified operating,
          marketing, financial and technical personnel. The competition for
          qualified personnel in the telecommunications and Internet access
          services industries is intense and, accordingly, there can be no
          assurance that the Company will be able to hire or retain
          necessary personnel. The competition for qualified computer
          programmers and engineers is particularly intense in the "Silicon
          Valley" area of California, where NETCOM's operations are based.
          The Company may be compelled to offer substantially increased
          compensation and benefits packages to attract and retain computer
          programmers and engineers. The loss of certain key personnel or
          the failure of the Company to attract and retain qualified
          personnel could adversely affect the Company and its ability to
          make payments on the New Notes.

          RAPID TECHNOLOGICAL CHANGE

             NETCOM's success is highly dependent upon its ability to
          develop new services and software that meet changing customer
          requirements. The market for NETCOM's services is characterized
          by rapidly changing technology, evolving industry standards,
          emerging competition and frequent new software, service and
          product introductions. There can be no assurance that NETCOM can
          successfully identify new service opportunities and develop and
          bring new services and software to market in a timely manner, or


                                      -21-
     <PAGE>


          that services, software or technologies developed by others will
          not render NETCOM's services, software or technologies
          noncompetitive or obsolete. NETCOM is also at risk of fundamental
          changes in the way Internet access services are delivered. New
          industry standards have the potential to replace or provide
          lower-cost alternatives to the Company's existing services. The
          adoption of such new industry standards could render the
          Company's existing services obsolete and unmarketable or require
          reduction in the fees charged therefor. For example, the
          Company's services currently rely on the widespread commercial
          use of Transmission Control Protocol/ Internet Protocol
          ("TCP/IP"). Alternative open and proprietary standards that
          compete with TCP/IP, including proprietary protocols developed by
          International Business Machines Corporation and Novell, Inc. have
          been or are being developed. The widespread acceptance of these
          or other protocols could have a material adverse effect on the
          Company.

             The Company's business is also sensitive to fundamental
          changes in the method of Internet access delivery. Currently, the
          Internet is accessed primarily via computers connected by
          telephone lines. A number of alternative methods for users to
          connect to the Internet, including cable modems, satellites and
          other wired and wireless telecommunications technologies,
          currently are under development. As the Internet becomes
          accessible through these technologies, or as user requirements as
          to access methods change, the Company will have to develop new
          technology or modify its existing technology. The Company's
          pursuit of these technological advances may require substantial
          time and expense, and there can be no assurance that the Company
          will succeed in adapting its Internet access business to
          alternate access methods. Any failure on the part of the Company
          to identify, adopt and use new technologies effectively, to
          develop its technological capabilities or to develop new services
          or enhance existing services in a timely and cost-effective
          manner could have a material adverse effect on the Company and
          its ability to make payments on the New Notes.

             ISPs participate in the Internet through contractual "peering
          arrangements" with Internet companies. These contractual
          arrangements are not subject to regulation and could be subject
          to revision in terms, conditions or costs over time.

             As the industry evolves, required technological advances by
          NETCOM could include compression, full-motion video, and
          integration of video, voice, data and graphics. NETCOM's pursuit
          of these technological advances may require substantial time and
          expense, and there can be no assurance that NETCOM will succeed
          in adapting its Internet service business to alternate access
          devices and conduits.

          DEPENDENCE ON THE INTERNET; UNCERTAIN ADOPTION OF INTERNET AS A
          MEDIUM OF COMMERCE AND COMMUNICATIONS

             The Company's products and services are targeted toward users
          of the Internet, which has experienced rapid growth. As is
          typical in the case of a new and rapidly evolving industry
          characterized by rapidly changing technology, evolving industry
          standards and frequent new product and service introductions,
          demand and market acceptance for recently introduced products and
          services are subject to a high level of uncertainty. In addition,
          critical issues concerning the commercial use of the Internet
          remain unresolved and may impact the growth of Internet use,
          especially in the business market targeted by the Company.
          Despite growing interest in the many commercial uses of the
          Internet, many businesses have been deterred from purchasing
          Internet access services for a number of reasons, including,
          among others, inconsistent quality of service, lack of
          availability of cost-effective, high-speed options, a limited
          number of local access points for corporate users, inability to
          integrate business applications on the Internet, the need to deal
          with multiple and frequently incompatible vendors, inadequate
          protection of the confidentiality of stored data and information
          moving across the Internet, and a lack of tools to simplify
          Internet access and use. In particular, numerous published
          reports have indicated that a perceived lack of security of
          commercial data, such as credit card numbers, has significantly
          impeded commercial exploitation of the Internet to date, and
          there can be no assurance that encryption or other technologies
          will be developed that satisfactorily address these security
          concerns. Published reports have also indicated that capacity
          constraints caused by growth in the use of the Internet may,
          unless resolved, impede further development of the Internet to
          the extent that users experience delays, transmission errors and
          other difficulties. Further, the adoption of the Internet for


                                      -22-
     <PAGE>


          commerce and communications, particularly by those individuals
          and enterprises that have historically relied upon alternative
          means of commerce and communication, generally requires the
          understanding and acceptance of a new way of conducting business
          and exchanging information. In particular, enterprises that have
          already invested substantial resources in other means of
          conducting commerce and exchanging information may be
          particularly reluctant or slow to adopt a new strategy that may
          make their existing personnel and infrastructure obsolete. The
          failure of the market for business-related Internet solutions to
          continue to develop would adversely impact the Company's
          business, financial condition and results of operations and
          ability to make payments on the New Notes.

             NETCOM's current customer base consists primarily of
          individuals and small and medium-sized businesses, and the
          Company's success will depend in part upon the continuing
          development and expansion of the Internet and the market for
          Internet access. While Internet access may afford businesses with
          a convenient and inexpensive resource of business-related
          information, Internet access also enables the end user, including
          an employee of a small or medium-sized business, to access a wide
          variety of non-business related information and/or recreational
          material that may distract the end user from his or her work-
          related responsibilities. Therefore, there may be a risk that
          such abuse of Internet access by employees resulting in decreased
          productivity of these employees could cause business demand for
          Internet services to decrease. There is also the risk that the
          perceived potential for abuse of Internet access privileges by
          employees could prevent otherwise interested businesses from
          subscribing to, or expanding their subscriptions with, NETCOM,
          which could have a material adverse effect on the Company's
          business, operating results and financial condition and ability
          to make payments on the New Notes.

          DEPENDENCE ON DISTRIBUTION AND MARKETING RELATIONSHIPS

             NETCOM believes that its success in penetrating markets for
          its Internet connectivity services depends in large part on its
          ability to maintain and develop additional relationships with
          leading companies that market computer products and to cultivate
          alternative relationships if distribution channels change. NETCOM
          has entered into original equipment manufacturer ("OEM")
          agreements, distribution agreements, and other agreements with a
          number of such companies. In addition, the Company will enter
          into agreements relating to the marketing of NETCOM's products
          and services by ICG's sales force. The termination or
          renegotiation of certain of these relationships could have a
          material adverse effect on NETCOM. All of these agreements are
          nonexclusive, and many of the companies with which NETCOM has
          agreements also have similar agreements with NETCOM's
          competitors. In addition, there can be no assurance that NETCOM's
          distributors and OEMs with which NETCOM has relationships, many
          of which have significantly greater financial and marketing
          resources than NETCOM, will not develop and market products in
          competition with NETCOM in the future, discontinue their
          relationships with NETCOM or form additional competing
          arrangements with NETCOM's competitors.

          RISKS RELATED TO INTERNATIONAL VENTURES

             NETCOM began offering Internet services in the United Kingdom
          and Canada through its international subsidiaries in 1995 and may
          seek to acquire additional businesses outside of the United
          States. There can be no assurance that the Company will be able
          to successfully market, sell and deliver its services in the
          United Kingdom, Canada or other international markets that it may
          decide to enter in the future. In addition, there are certain
          significant risks inherent in doing business on an international
          level, such as laws governing content that differ greatly from
          those in the United States, unexpected changes in regulatory
          requirements, political risks, export restrictions, tariffs and
          other trade barriers, fluctuations in currency exchange rates,
          and issues regarding intellectual property and potentially
          adverse tax consequences, any or all of which could impact the
          Company's international operations. NETCOM's EBITDA losses for
          its international operations for fiscal 1997 were $13.4 million.

          DEPENDENCE ON SUPPLIERS

             NETCOM relies on other companies to provide data
          communications capacity via leased telecommunications lines. If
          NETCOM's suppliers are unable or unwilling to provide or expand


                                      -23-
     <PAGE>


          its current levels of service to NETCOM in the future, NETCOM's
          operations would be materially adversely affected. Although
          leased telecommunications lines are available from several
          alternative suppliers, including ICG, there can be no assurance
          that NETCOM could obtain substitute services from other providers
          at reasonable or comparable prices or in a timely fashion. NETCOM
          is also subject to risks relating to potential disruptions in its
          suppliers' services, and there are no assurances that such
          interruptions will not occur in the future. Service interruptions
          can produce substantial customer dissatisfaction and lead to
          higher rates of customer churn.

             NETCOM is also dependent on certain third party suppliers of
          software and hardware components. Although NETCOM attempts to
          maintain a minimum of two vendors for each required product,
          certain components used by NETCOM in providing its networking
          services are currently acquired from only one source, including
          high performance routers manufactured by Cisco Systems, Inc.
          ("Cisco"), modems manufactured by U.S. Robotics Corporation
          ("U.S. Robotics"), switches manufactured by Cascade
          Communications, Inc. ("Cascade") and servers from Sun
          Microsystems, Inc. ("Sun Microsystems"). NETCOM has also from
          time to time experienced delays in the receipt of certain
          software and hardware components. A failure by a supplier to
          deliver quality products on a timely basis, or the inability to
          develop alternative sources if and as required, could result in
          delays that could materially adversely affect the Company's
          business, operating results and financial condition and ability
          to make payments on the New Notes.

          DEPENDENCE ON NETWORK INFRASTRUCTURE; RISK OF SYSTEM FAILURE;
          SECURITY RISKS

             The future success of NETCOM's business will depend upon the
          capacity, reliability and security of its network infrastructure.
          NETCOM has in the past experienced network problems and network
          slowdowns due to limited server capacity in NETCOM's NOCs. NETCOM
          is currently implementing systems and processes in order to
          address these problems and improve NETCOM's service generally.
          NETCOM must continue to expand and adapt its network
          infrastructure as the amount of information NETCOM wishes to
          transfer increases and to meet changing customer requirements.
          The expansion and adaptation of NETCOM's network infrastructure
          will require substantial financial, operational and management
          resources. There can be no assurance that NETCOM will be able to
          expand or adapt its network infrastructure to meet additional
          demand or its changing customer requirements on a timely basis,
          at a commercially reasonable cost, or at all, or that NETCOM will
          be able to deploy successfully the contemplated network
          expansion. Any failure of NETCOM to expand its network
          infrastructure on a timely basis or to adapt it to changing
          customer requirements or evolving industry standards could have a
          material adverse effect on the Company's business, operating
          results and financial condition and ability to make payments on
          the New Notes.

             NETCOM's operations are dependent on its ability to protect
          its computer equipment against damage from fire, earthquakes,
          power loss, telecommunications failures and similar events. A
          significant portion of NETCOM's computer equipment is located at
          its NOCs and NETCOM is subject to significant risk to NETCOM's
          operations from a natural disaster or other unanticipated event
          at one of these sites. Any damage or failure that causes
          interruptions in NETCOM's operations could have a material
          adverse effect on the Company's business, operating results,
          financial condition and ability to make payments on the New
          Notes.

             Despite the implementation of security measures, NETCOM's
          infrastructure is also vulnerable to computer viruses or similar
          disruptive problems caused by its customers or other Internet
          users. Computer viruses or problems caused by third parties could
          lead to interruptions, delays or cessation in service to NETCOM's
          customers. Furthermore, inappropriate use of the Internet by
          third parties could also potentially jeopardize the security of
          confidential information stored in the computer systems of
          NETCOM's customers and could also cause dissemination of
          unwanted, inappropriate or objectionable materials to NETCOM's
          customers, any of which may deter certain persons from
          subscribing to NETCOM's services.

             Any network malfunction or security breach could cause
          commercial transactions to be delayed, not completed or completed
          with compromised security. Although the Company intends to
          continue to implement and maintain security measures, such


                                      -24-
     <PAGE>


          measures have been circumvented in the past and may be defeated
          in the future. Alleviating problems caused by computer viruses or
          other inappropriate uses or security breaches may cause
          interruptions, delays or cessation in service to the Company's
          subscribers, which could have a material adverse effect on the
          Company. In addition, there can be no assurance that subscribers
          or others will not assert claims of liability against the Company
          as a result of these events. Further, until more comprehensive
          security technologies are developed and implemented, security and
          privacy concerns of existing and potential subscribers may
          inhibit the growth of the Internet access services industry in
          general and of the Company's user base in particular.

          REGULATION

             The Company provides Internet access services in part through
          data transmissions over public telephone lines. These
          transmissions are governed by regulatory policies establishing
          charges and terms for wire-line communications. Although the
          Company is not currently subject to direct regulation by the FCC
          or any other governmental agency (other than regulations
          applicable to businesses generally), due to the increasingly
          widespread use of the Internet, it is possible that additional
          laws and regulations may be adopted with respect to the Internet,
          covering issues such as content, user privacy, pricing, libel,
          intellectual property protection and infringement, and technology
          export and other controls. It also is possible that the Company
          could become subject to regulation by the FCC or another
          regulatory agency as a provider of basic telecommunications
          services. The FCC is currently reviewing its regulatory positions
          to impose common carrier regulation on the network transport and
          communications facilities aspects of an enhanced or information
          service package. Such changes in the regulatory structure and
          environment affecting the Internet access market, including
          regulatory changes that directly or indirectly affect
          telecommunications costs or increase the likelihood of
          competition from the RBOCs or other telecommunications companies,
          could have an adverse effect on the Company's business. For
          example, the FCC is considering whether ISPs should be required
          to pay access charges to local telephone companies for each
          minute that dial-access users spend connected to ISPs through
          telephone company switches. In addition, some telephone companies
          are seeking similar relief through state regulatory agencies and
          have raised this issue before the Eighth Circuit Court of
          Appeals.  The FCC may also decide that ISPs should pay access
          charges and/or contribute to the federal Universal Service Fund. 
          However, in a recent Report on Universal Service sent to Congress
          by the FCC on April 10, 1998, the FCC reaffirmed its view that as
          a general matter ISPs are information services providers and not
          telecommunications carriers, and reiterated that information
          services providers are not subject to universal service
          obligations, access charges or rate regulation.  Additionally,
          the Report declines to make any definitive pronouncements on
          whether various new services, such as certain forms of Internet
          telephone services, should be classified as information services
          or telecommunications services.  Instead, the FCC deferred
          consideration of that issue to future proceedings.  If adopted at
          either the federal or state level, new requirements that ISPs pay
          access charges and/or contribute to the Universal Service Fund
          could have a material adverse effect on the Company and its
          ability to make payments on the New Notes. The Company cannot
          predict the impact, if any, that future regulation or regulatory
          changes may have on its business.

             Certain states have deemed the provision of Internet services
          to be taxable and, in such states, NETCOM collects such taxes
          from its customers. Other states have not yet announced a policy
          in this regard or have affirmatively decided that such services
          are not taxable. If such states retroactively subject the
          provision of Internet services to sales tax or if customers are
          unwilling to pay sales tax that may be assessed in the future,
          such events could have a material adverse effect on the Company
          and its ability to make payments on the New Notes.

          RISKS RELATING TO CUSTOMER CHURN

             ISPs are subject to substantial customer "churn," the term
          used for customer turnover through cancellations. High churn
          rates may indicate customer dissatisfaction with the ISP and may
          cause the ISP to incur substantial costs to retain existing
          customers and attract new customers. Any substantial increase in
          NETCOM's churn rate could have a material adverse effect on the
          Company's business, operating results, financial condition and
          its ability to make payments on the New Notes.


                                      -25-
     <PAGE>


          CONTROL BY ICG

             ICG owns all of the Company's issued and outstanding capital
          stock and thus has complete voting control over the corporate
          governance of the Company, including the election of the
          Company's Board of Directors and other corporate actions
          requiring stockholder approval. Certain decisions concerning the
          operations or financial structure of the Company may present
          conflicts of interest between ICG and the holders of the New
          Notes. For example, if the Company encounters financial
          difficulties or is unable to pay its debts as they mature, the
          interests of ICG might conflict with those of the holders of the
          New Notes. In addition, ICG may have an interest is pursuing
          certain acquisitions, divestitures, financings or other
          transactions that, in its judgment, could enhance its equity
          interest in the Company, even though such transactions might
          involve risks to the holders of the New Notes. See "Sole
          Stockholder of the Company."

          LIMITED INTELLECTUAL PROPERTY PROTECTION

             NETCOM relies on a combination of copyright and trademark
          laws, trade secrets, software security measures, license
          agreements and nondisclosure agreements to protect its
          proprietary technology and software products. NETCOM currently
          has no domestic or foreign patents or patent applications
          pending. Despite NETCOM's precautions, it may be possible for
          unauthorized third parties to lawfully or unlawfully copy aspects
          of, or otherwise obtain and use, NETCOM's software products and
          technology. In addition, NETCOM cannot be certain that others
          will not develop substantially equivalent or superseding
          proprietary technology, thereby substantially reducing the value
          of NETCOM's proprietary rights.

             From time to time NETCOM has received notices claiming that it
          is infringing the proprietary rights of third parties, and there
          can be no assurance that NETCOM will not become the subject of
          infringement claims or legal proceedings by third parties with
          respect to current or future products. Any such claims could be
          time consuming, result in costly litigation, cause product
          shipment delays or lead NETCOM to enter into royalty or licensing
          agreements rather than disputing the merits of such claims.
          Moreover, an adverse outcome in such proceedings could subject
          NETCOM to significant liabilities to third parties, require
          expenditure of significant resources to develop non-infringing
          technology, require disputed rights to be licensed from others or
          require NETCOM to cease the marketing or use of certain products,
          any of which could have a material adverse effect on the
          Company's business, operating results and financial condition.

          RISKS RELATED TO CSW/CHOICECOM OPTIONS

             Pursuant to agreements entered into with affiliates of Central
          and South West Corporation ("CSW") in December 1996, as
          subsequently revised, relating to ChoiceCom, prior to offering
          ISP services in the states of Texas, Oklahoma, Louisiana and
          Arkansas, ICG is obligated to offer CSW the right to purchase up
          to a 49% interest in the business opportunity providing such
          services. Consequently, ICG has offered CSW an option to purchase
          up to 49% of that portion of the business of NETCOM that provides
          such services in such four-state area (the "ISP Opportunity") at
          a price based on the costs and expenses incurred by ICG to
          acquire such ISP Opportunity. The Company does not know whether
          CSW will exercise this option. If CSW does not exercise this
          option, at such time, if ever, that ICG exercises the option it
          currently holds to acquire a 50% interest in ChoiceCom, ChoiceCom
          will then effectively have the right to acquire 100% of the ISP
          Opportunity from ICG at a price equal to ICG's costs and expenses
          (including an implied interest rate) incurred with respect to
          such ISP Opportunity. As a result, ICG is required to maintain
          separate books and records for the ISP Opportunity, and
          transactions between the ISP Opportunity and NETCOM's other
          operations will be carried out on an arm's length basis.
          Additionally, options on substantially the same terms will be
          available to CSW and ChoiceCom with respect to all
          telecommunications business opportunities in such four-state
          area.


                                      -26-
     <PAGE>


          CERTAIN FINANCIAL AND OPERATING RESTRICTIONS

             The Indenture and other indebtedness of the Company impose
          operating and financial restrictions on the Company. Such
          restrictions affect, and in certain cases significantly limit or
          prohibit, among other things, the ability of the Company to incur
          additional indebtedness or create liens on its assets, pay
          dividends, sell assets, engage in mergers or acquisitions or make
          investments. A default under such indebtedness could result in an
          acceleration of the Notes, in which case the holders of the New
          Notes may not be paid in full.

          ORIGINAL ISSUE DISCOUNT; POSSIBLE UNFAVORABLE TAX AND OTHER LEGAL
          CONSEQUENCES FOR HOLDERS OF NOTES

             The New Notes will be issued at a substantial discount from
          their principal amount. Although cash interest will not accrue on
          the New Notes prior to February 15, 2003, and there will be no
          periodic payments of cash interest on the New Notes prior to
          August 15, 2003, original issue discount (the difference between
          the stated redemption price at maturity and the issue price of
          the New Notes) will accrue from the issue date of the New Notes.
          Original issue discount will be includible as interest income
          periodically (including for periods ending prior to February 15,
          2003) in a U.S. Holder's gross income for U.S. federal income tax
          purposes in advance of receipt of the cash payments to which the
          income is attributable. See "Certain United States Federal Income
          Tax Considerations" for a more detailed discussion of the federal
          income tax consequences to the Holders of a New Note regarding
          the purchase, ownership and disposition of the Notes.

             If a bankruptcy case is commenced by or against the Company
          under the U.S. Bankruptcy Code after the issuance of the New
          Notes, the claim of a holder of a New Note with respect to the
          principal amount thereof may be limited to an amount equal to the
          sum of (i) the initial offering price and (ii) that portion of
          the original issue discount that is not deemed to constitute
          "unmatured interest" for purposes of the U.S. Bankruptcy Code.
          Any original issue discount that was not amortized as of any such
          bankruptcy filing would constitute "unmatured interest."

          LACK OF PUBLIC MARKET

             The New Notes are a new issue of securities for which there is
          currently no active trading market. If any New Notes are traded
          after their initial issuance, they may trade at a discount from
          their initial offering price, depending upon prevailing interest
          rates, the market for similar securities and other factors,
          including general economic conditions and the financial
          condition, performance of, and prospects for the Company.  There
          can be no assurance of an active trading market for any of the
          New Notes.


                                      -27-
     <PAGE>

                               SELECTED FINANCIAL DATA

             The Company is a newly formed Delaware corporation and,
          accordingly, no financial statements for the Company have been
          included herein. NETCOM is a wholly owned subsidiary of the
          Company, acquired in a pooling-of-interests transaction with ICG.

             The following table sets forth selected financial and other
          operating data of NETCOM, the predecessor to the Company, for
          each fiscal year in the five-year period ended December 31, 1997.
          Such data have been derived from, and should be read in
          conjunction with, NETCOM's audited consolidated financial
          statements and notes thereto included elsewhere in this
          Prospectus for each of the fiscal years in the three-year period
          ended December 31, 1997. NETCOM's development and expansion
          activities, including acquisitions, during the periods shown
          below materially affect the comparability of this data from one
          period to another.



                                         YEARS ENDED DECEMBER 31,
                                -----------------------------------------
                                1993     1994     1995(1)    1996     1997
                                ----     ----     -------    ----     ----
                                       (IN THOUSANDS, EXCEPT RATIOS)

     STATEMENT  OF OPERATIONS
     DATA:
     Revenue . . . . . . .   $ 2,412   $12,359  $ 52,422  $ 120,540  $160,660
     Costs and expenses:
       Cost of revenue . . .   1,133     6,711    36,641     88,396   118,432
       Product development .      69       328     2,240      6,020     6,518
       Sales and marketing .     371     3,080    18,771     51,237    49,375
       General and
        administrative . . .     597     2,345    11,016     23,610    22,264
       Restructuring and          --        --        --         --     1,879
        related charges  . . -------   -------    ------  ---------  --------
            Total costs and
              expenses . . .   2,170    12,464    68,668    169,263   198,468
     Income (loss) from
      operations . . . . . .     242      (105)  (16,246)   (48,723)  (37,808)
     (Loss) gain on
      investment . . . . . .      --        --        --     (1,200)    1,274
     Interest and other
      (expense) income,           (3)        5     2,197      5,681     3,480
      net(2) . . . . . . . . -------   -------    ------  ---------  --------
     Income (loss) before
      provision for income
      taxes . . . . .            239      (100)  (14,049)   (44,242)  (33,054)
     Provision for income
      taxes  . . . . . . . .     (12)       --       (15)       (23)      (38)
                             -------   -------    ------  ---------  --------
     Net income (loss) . . . $   227   $  (100) $(14,064) $ (44,265) $(33,092)
                             =======   =======  ========  =========  ========

     OTHER DATA:
     Net cash provided by
      (used in) operating 
      activities  . . . . .  $   789   $ 4,922  $   (461) $ (21,651) $ (2,130)
     Net cash used in
      investing activities.   (1,028)  (11,375)  (44,742)   (53,992)   (9,029)
     Net cash provided by
      financing activities.      314    27,315   170,294      2,351     1,351
     Capital expenditures(3)   1,028    11,143    43,361     53,992    17,258
     EBITDA(4):
       Domestic  . . . . . .     399     1,096    (5,324)    (5,091)   11,633
       International . . . .      --        --      (977)   (15,206)  (13,367)
                             -------  --------  --------  ---------  --------
             Total. . . . .  $   399  $  1,096  $ (6,301)  $(20,297) $ (1,734)
                             =======  ========  ========  =========  ========
     EBITDA before
       restructuring and
       related 
       charges:
       Domestic  . . . . . .     399     1,096    (5,324)    (5,091)   11,633
       International . . . .      --        --      (977)   (15,206)  (11,488)
                             -------  --------  --------  ---------  --------
             Total . . . . . $   399  $  1,096  $ (6,301) $ (20,297) $    145
                             =======  ========  ========  =========  ========
     Ratio of earnings to
      fixed charges(5) . . .     8.7x       --        --         --        --


                                      -28-
     <PAGE>


                                                                  AT
                                                               DECEMBER
                                                               31, 1997
                                                              ----------
                                                                 (IN
                                                              THOUSANDS)
             BALANCE SHEET DATA:
             Cash and cash equivalents . . . . . . . . . . . $ 63,368
             Working capital . . . . . . . . . . . . . . . .   38,698
             Property and equipment, net . . . . . . . . . .   72,945
             Total assets  . . . . . . . . . . . . . . . . .  146,847
             Short-term capital lease obligations  . . . . .    2,491
             Long-term capital lease obligations, net of   
             current portion . . . . . . . . . . . . . . . .    3,550
             Common stock and additional paid-in capital . .  207,325
             Accumulated deficit . . . . . . . . . . . . . .  (95,134)
             Stockholders' equity  . . . . . . . . . . . . .  112,335

          ----------

          (1)  Results for fiscal 1995 include five months of results of
               Professional Internet Consulting, Inc., which was acquired
               by NETCOM in August 1995.
          (2)  Giving pro forma effect to the receipt of the net proceeds
               from the Private Offering and interest expense, net on
               $300.6 million gross proceeds of Notes, without giving any
               effect to any increased interest income on available cash,
               as if such events had occurred on January 1, 1997, interest
               expense, net would have been $26.6 million for fiscal 1997.
          (3)  Capital expenditures include assets acquired under capital
               leases. 
          (4)  EBITDA is provided because it is a measure commonly used in
               the Internet and telecommunications industries. EBITDA is
               presented to enhance the understanding of NETCOM's operating
               results and is not intended to represent cash flows or
               results of operations in accordance with GAAP for the
               periods indicated. EBITDA is not a measurement under GAAP
               and is not necessarily comparable with similarly titled
               measures of other companies. Net cash flows from operating,
               investing and financing activities as determined using GAAP
               are also presented in Other Data.
          (5)  Earnings were insufficient to cover fixed charges in fiscal
               1994, 1995, 1996 and 1997 by $.1 million, $14.0 million,
               $44.2 million and $33.1 million, respectively. On a pro
               forma basis giving effect to the Private Offering as if it
               had occurred on January 1, 1997 and without giving effect to
               any increased interest income on additional available cash,
               earnings would have been insufficient to cover fixed charges
               by $63.1 million for fiscal 1997. Earnings consist of income
               (loss) before provision for income taxes plus fixed charges.
               Fixed charges consist of interest charges and amortization
               of debt expense and discount or premium related to
               indebtedness, whether expensed or capitalized and that
               portion of rental expense the Company believes to be
               representative of interest (i.e., one-third of rental
               expense).


                                      -29-
     <PAGE>


             MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
                              AND RESULTS OF OPERATIONS

               The following discussion includes certain forward-looking
          statements which are affected by important factors including, but
          not limited to, the Company's lack of operating history,
          historical operating losses of NETCOM and lack of credit support
          from ICG that could cause actual results to differ materially
          from the forward-looking statements. See "Risk Factors."

          OVERVIEW

               The Company was formed in January 1998 and has conducted no
          material operations to date other than the acquisition and
          operations of NETCOM. See "The Company." Therefore, the following
          discussion is a discussion and analysis of the results of
          operations and financial condition of NETCOM, the predecessor
          business to the Company. The Company's results of operations and
          financial condition will change as it consummates acquisitions
          and as the operations of ICG Equipment becomes more significant.

               NETCOM is a leading provider of high quality Internet
          solutions to individual and small and medium-sized businesses in
          the United States and also provides the same high quality
          Internet solutions in Canada and the United Kingdom. NETCOM
          offers a broad spectrum of Internet solutions designed to enhance
          customer productivity through the integration and application of
          technologies by providing a comprehensive software platform to
          interface with the Web, premium quality Internet access and
          support services and on-line tools to automate Web site creation
          and development.

               NETCOM owns and operates a data communications network
          consisting of 17 hubs containing frame relay switches and high-
          performance routers connecting a backbone of leased ATM switches
          and leased high-speed dedicated data lines in the United States,
          Canada and the United Kingdom. NETCOM maintains 247 POPs in the
          United States and Canada and also offers virtual local access
          numbers in Canada and the United Kingdom. The design and
          architecture of the physical network permits NETCOM to offer
          highly flexible, reliable high-speed services to its customers
          and support significant subscriber growth. The NETCOM
          infrastructure is monitored by NOCs in San Jose, Dallas, Toronto
          and London.

               NETCOM derives revenue from dial-up access, direct access
          and Web site hosting services. In January 1997, NETCOM announced
          plans to migrate its customer focus away from high volume, low
          margin consumer customers to higher margin products for small and
          medium-sized business customers. However, for fiscal 1997,
          revenue from dial-up access, direct access and Web site hosting
          services was $133.7 million, $19.5 million and $6.3 million,
          respectively, representing approximately 83%, 12% and 4%,
          respectively, of NETCOM's total revenue. Direct access customers
          typically purchase equipment and generate non-recurring start-up
          revenue. This initial non-recurring revenue was approximately 1%
          of NETCOM's revenue for fiscal 1997.

               Cost of revenue principally consists of labor costs, costs
          of leased long distance transmissions capacity, depreciation of
          network equipment, customer support costs, costs of equipment
          sold to customers and other miscellaneous costs. Transmission
          capacity is the largest component. NETCOM acquires transmission
          capacity through month-to-month (or longer) leases.

               Product development expenses are principally labor costs for
          programmers and engineers. These personnel are employed to
          integrate NETCOM's software with software of third party vendors
          and software and applications used on the Internet. The labor
          market for computer programmers is highly competitive and labor
          costs for such personnel have increased and is expected to
          continue to increase.


                                      -30-
     <PAGE>


               Sales and marketing expenses consist principally of
          commissions and advertising allocations paid to third party
          marketing organizations, advertising expenditures made directly
          by NETCOM and labor costs of NETCOM's internal sales force. In
          future periods, sales and marketing expense is expected to
          substantially increase, both in absolute dollars and as a
          percentage of revenue.

               Historically, NETCOM has not had significant interest
          expense. However, as a result of the Private Offering, interest
          expense will increase substantially.

               The Company expects to acquire telecommunications, Internet
          and related businesses that complement ICG's business strategy to
          offer a wide array of telecommunications, Internet and related
          services primarily to communications-intensive business
          customers. Acquisition targets could include U.S. or foreign
          CLECs, ISPs and long distance companies, among others. The
          Company intends to make future acquisitions primarily through the
          use of ICG Common Stock, cash on hand and the proceeds from
          securities offerings.

               Merger related costs incurred to effect the combination of
          NETCOM and ICG include registration fees, costs of furnishing
          information to stockholders, fees of finders and consultants,
          instituting efficiencies which are necessary to integrate the
          continuing operations of the combined corporation and other
          costs. All expenses related to effecting the combination will be
          recorded as expenses of the resulting combined corporation during
          the period in which the combination was consummated (January
          1998). The Company believes that total expenses incurred relating
          to the merger are approximately $8.3 million, which includes
          deferred expenses incurred prior to December 31, 1997,
          aggregating approximately $1.5 million.

          RESULTS OF OPERATIONS

          YEARS ENDED DECEMBER 31, 1997 AND 1996

               Revenue. Revenue increased by $40.1 million, or 33%, to
          $160.7 million for the year ended December 31, 1997 from $120.5
          million for the year ended December 31, 1996. The revenue
          increase was due to an increase in average revenue per customer,
          which resulted from an increase in the mix of direct access and
          Web site hosting customers relative to dial-up customers, sales
          of NETCOM's premium dial-up products and growth in the Internet
          market generally. During 1997, NETCOM experienced increases in
          dedicated and Web site hosting customers of 200% and 32%,
          respectively, and a decrease in dial-up accounts. The
          consolidated average revenue per customer increased approximately
          20% from 1996 to 1997. The total number of customers decreased by
          7% to approximately 539,000 customers as of December 31, 1997
          from approximately 580,000 customers as of December 31, 1996. In
          January 1997, NETCOM announced plans to migrate its customer
          focus away from high volume, low margin consumer customers to
          higher margin products for small and medium-sized business
          customers. As a result, NETCOM expects that the number of total
          subscribers will continue to decline in 1998, while revenue per
          customer will continue to increase. However, there can be no
          assurance that revenue per customer will continue to increase.

               International revenue increased by $10.7 million to $13.2
          million for the year ended December 31, 1997 from $2.5 million
          for the year ended December 31, 1996. The increase in
          international revenue is due to the increased subscriber base for
          NETCOM's international operations which began in 1996.

               Cost of revenue. Cost of revenue was $118.4 million for the
          year ended December 31, 1997 and $88.4 million for the year ended
          December 31, 1996, increasing to 74% of revenue from 73% of
          revenue, respectively.  The increase in cost of revenue during
          1997 was primarily attributable to NETCOM's international
          expansion, increased network, data communication and depreciation
          costs associated with network improvements and with expansion of
          NETCOM's operations and customer support staff.  Consolidated
          gross margin for the years ended December 31, 1997 and December
          31, 1996 was 26% and 27%, respectively. Domestic gross margin for
          the same period was 29% and 32%, respectively.


                                      -31-
     <PAGE>

               International cost of revenue for the year ended December
          31, 1997 was $13.6 million, an increase of $5.9 million over the
          year ended December 31, 1996. The increase in international cost
          of revenue in absolute dollars is due primarily to increased
          network and payroll related costs. NETCOM expects that cost of
          revenue for international operations will continue to increase in
          absolute dollars in the foreseeable future.

               Product development. Product development expenses were $6.5
          million for the year ended December 31, 1997 and $6.0 million for
          the year ended December 31, 1996, representing 4% and 5% of
          revenue, respectively.  The increase in product development costs
          was due to increased personnel in the development area. 
          International product development expenses for the year ended
          December 31, 1997 were $1.1 million compared to $54,000 in 1996.
          NETCOM plans to continue expenditures on product development as
          it develops new software products and upgrades existing products.
          It is expected that product development expenses as a percentage
          of revenue will remain relatively stable.

               Sales and marketing. Sales and marketing expenses decreased
          $1.9 million, or 4%, to $49.4 million for the year ended December
          31, 1997 from $51.2 million for the year ended December 31, 1996.
          The decrease in sales and marketing expenses, as a percentage of
          revenue, to 31% from 43% for the years ended December 31, 1997
          and December 31, 1996, respectively, was primarily attributable
          to decreases in advertising, trade show, and consulting expenses
          and decreased subscriber activity in the U.S.

               International sales and marketing expenses (including costs
          incurred domestically relating to international operations)
          increased by $1.9 million to $11.5 million for the year ended
          December 31, 1997 compared to the year ended December 31, 1996.
          International sales and marketing expenses are expected to
          continue to increase in absolute dollars but to decrease as a
          percentage of revenue.

               Certain of NETCOM's direct response advertising costs
          associated with subscriber acquisitions are capitalized in
          accordance the AICPA's Statement of Position 93-7 and amortized
          over a 12-month period using the straight-line method. NETCOM
          capitalized subscriber acquisition costs of approximately $6.5
          million and $14.4 million for the years ended December 31, 1997
          and December 31, 1996, respectively. Amortization of deferred
          subscriber acquisition costs for the years ended December 31,
          1997 and December 31, 1996 were $8.5 million and $12.2 million,
          respectively.

               General and administrative. General and administrative
          expenses decreased $1.3 million, or 6%, to $22.3 million for the
          year ended December 31, 1997 from $23.6 million for the year
          ended December 31, 1996, decreasing to 14% from 20% of revenue,
          respectively. The decrease in general and administrative expenses
          in absolute dollars and as a percentage of revenue was primarily
          due to costs incurred during 1996 of $.1 million with respect to
          moving a significant portion of NETCOM's operations into new
          buildings and $.7 million from writing-off accounts receivable
          balances determined to be uncollectible.

               International general and administrative expenses increased
          by $.1 million to $2.6 million for the year ended December 31,
          1997 compared to the year ended December 31, 1996. General and
          administrative expenses are expected to increase in absolute
          dollars.

               Restructuring and related charges. Restructuring and related
          charges of $1.9 million during the year ended December 31, 1997
          are the result of a decision by management to restructure
          operations of NETCOM's subsidiary in the United Kingdom. The
          restructuring charge is comprised of $1.4 million in accrued
          expenses for costs to terminate excess leased office facilities
          and a write-off of office equipment, furniture and building
          improvements as a result of consolidating office space, a $.3
          million write-down of previously capitalized deferred subscriber
          acquisition costs and $.2 million for severance costs.


                                      -32-
     <PAGE>


               Interest income and other, net. Interest income, net was
          $3.5 million and $5.7 million, respectively, for the years ended
          December 31, 1997 and 1996. The decrease was due to NETCOM's
          lower average balance of cash and cash equivalents during 1997 as
          compared to 1996. In addition, during 1997, NETCOM incurred
          interest expense on capital leases of $.5 million for 1997
          compared to no interest expense during the prior year. NETCOM
          invests its cash and cash equivalents primarily in high grade
          commercial paper and money market instruments.

               Provision for income taxes.  The provision for income taxes
          for 1997 and 1996 consisted solely of foreign taxes and state
          minimum taxes as NETCOM had pre-tax losses in both years.

               Net loss; EBITDA. Revenue growth and decreases in cost of
          revenue and operating expenditures as a percentage of revenue,
          offset by international expansion and restructuring charges
          related to the United Kingdom operations, resulted in reduced net
          losses of $33.1 million for 1997 as compared to net losses of
          $44.3 million for 1996. International net losses for 1997 were
          $18.3 million as compared to net losses of $18.0 million for
          1996.

               NETCOM believes EBITDA (earnings before interest, taxes,
          depreciation and amortization) is a cash flow measure used by
          analysts, investors and other parties interested in the Internet
          services industry. EBITDA losses for 1997 were $1.7 million as
          compared to EBITDA losses of $20.3 million for 1996. EBITDA
          before restructuring and related charges of $1.9 million was $.1
          million for 1997. Domestic EBITDA for 1997 was $11.6 million.

          YEARS ENDED DECEMBER 31, 1996 AND 1995

               Revenue. Revenue increased 130% to $120.5 million from $52.4
          million in 1995. The increase in revenue was due to a significant
          increase in the number of dial-up subscribers, direct access
          connections and Web site hosting accounts, which NETCOM
          attributes to the growth in the Internet market generally, the
          increase in the number of NETCOM local access areas, NETCOM's
          release of enhancements to its software, and continued expansion
          of NETCOM's sales, distribution and promotional activities.
          Subscribers increased by 88% to approximately 580,000 customers
          as of December 31, 1996 from approximately 308,000 customers as
          of December 31, 1995. NETCOM's international subsidiaries
          accounted for $2.5 million of total revenue in 1996.

               Cost of revenue. NETCOM's cost of revenue increased 141% to
          $88.4 million in 1996 from $36.6 million in 1995, increasing to
          73% from 70% of revenue, respectively. The increase in the cost
          of revenue (in absolute terms) during 1996 was primarily
          attributable to NETCOM's international expansion, sales tax
          charges, increased network, data communication and depreciation
          costs associated with the increased number of subscribers and
          network improvements and with expansion of NETCOM's operations
          and customer support staff. The amount relating to international
          operations in 1996 was $7.7 million. The increase as a percentage
          of revenue was primarily due to NETCOM's expansion
          internationally.

               Product development. Total product development expenses
          increased 169% to $6.0 million from $2.2 million in 1995,
          increasing to 5% from 4% of revenue, respectively. Of the 1996
          product development expenses, $54,000 related to international
          operations.

               Sales and marketing. Sales and marketing expenses increased
          173% to $51.2 million from $18.8 million in 1995, increasing to
          43% from 36% of revenue, respectively. The increase in sales and
          marketing expenses was due primarily to increased costs
          associated with NETCOM's international subsidiaries' sales and
          marketing expenses and subscriber acquisition activity in the
          U.S. The total for international operations in 1996 was $9.6
          million which includes costs incurred domestically relating to
          international operations. In addition, growth of costs associated
          with subscriber acquisition, the addition of management personnel
          and marketing programs in the U.S. attributed to the increase.
          NETCOM capitalized subscriber acquisition costs of approximately
          $14.4 million and $5.5 million and amortized and wrote off
          approximately $12.2 million and $2.8 million for 1996 and 1995,
          respectively. In 1996, of the amounts capitalized and amortized,
          $1.8 million and $.8 million, respectively, related to
          international operations.


                                      -33-
     <PAGE>


               General and administrative. General and administrative
          expenses increased 114% to $23.6 million in 1996 from $11.0
          million in 1995, and as a percent of revenue, general and
          administrative expenses decreased to 20% from 21%, respectively.
          The dollar increase was primarily attributable to additional
          administrative personnel, bad debt expense, additional corporate
          facility expenses and international operations. International
          operations accounted for $2.5 million of general and
          administrative expenses during 1996.

               Interest income, net. Interest income, net increased to $5.7
          million in 1996 from $2.2 million in 1995. This change is
          primarily the result of the investment of the proceeds from
          NETCOM's public offerings in May and November 1995, primarily in
          commercial paper.

               Provision for income taxes. The provision for income taxes
          for 1996 and 1995 consisted solely of foreign taxes and state
          minimum taxes as NETCOM had pre-tax losses in both years.

               Net loss; EBITDA. The higher cost of revenue and operating
          expenditures incurred in fiscal 1996, as described above,
          resulted in a net loss of $44.3 million as compared to a net loss
          of $14.1 million for 1995, notwithstanding the period to period
          revenue growth. This reflected NETCOM's strategy to invest in its
          international operations as well as in the growth of its
          subscriber base and local access numbers. EBITDA losses for
          fiscal 1996 and 1995 were $20.3 million and $6.3 million,
          respectively.

          LIQUIDITY AND CAPITAL RESOURCES

               NETCOM has used cash principally for capital expenditures
          and to fund operating losses. NETCOM has funded its operations to
          date primarily through cash revenue and private and public sales
          of equity securities. NETCOM's operating activities used cash of
          approximately $2.1 million, $21.7 million and $.5 million for
          1997, 1996 and 1995, respectively. During 1997, cash used in
          operating activities was primarily affected by the net loss,
          gains on investments, deferred subscriber acquisition costs and a
          $2.1 million payment in connection with its Brazilian investment,
          which investment was liquidated in December 1997. These uses of
          cash were primarily offset by depreciation and amortization and
          $2.2 million representing increases in deferred revenue. During
          1996, cash from operations was primarily used to fund the net
          loss, decreases in accounts payable and an increase in deferred
          subscriber acquisition costs. These uses of cash were partially
          offset by depreciation and amortization, liquidation of
          investments and increases in accrued payroll and related
          expenses, other accrued expenses and liabilities and deferred
          revenue.  In 1995, cash used in operations was primarily used to
          fund the net loss and increases in deferred subscriber
          acquisition costs.  These uses of cash were partially offset by
          depreciation and amortization and other non-cash losses and
          increases in other accounts payable, accrued expenses and
          payroll.

               Investing activities used net cash of $9.0 million, $54.0
          million and $44.7 million for 1997, 1996 and 1995, respectively.
          NETCOM's investing activities have consisted primarily of
          equipment purchases for new local access areas and network
          expansion. Cash capital expenditures were $10.9 million for 1997
          which were offset in part by the sale of short-term investments.

               Financing activities provided cash of $1.4 million,
          $2.4 million and $170.3 million for 1997, 1996 and 1995,
          respectively. For 1997, financing activities consisted primarily
          of the exercise of stock options, purchases under the employee
          stock purchase plan (which was dissolved in conjunction with
          NETCOM's merger with ICG in January 1998) and proceeds from
          issuance of debt relating to financing of equipment which was
          partially offset by principal payments on the capital leases
          entered into during the period. For 1996, financing activities
          consisted of proceeds from the exercise of stock options and
          purchases under the employee stock purchase plan.  For 1995,
          financing activities consisted primarily of proceeds from
          NETCOM's public offerings in May 1995 and November 1995.

               NETCOM has material capital commitments for its capital
          lease obligations and rental expense for its premises and a
          substantial portion of the proceeds of its May 1995 and November


                                     -34-
     <PAGE>


          1995 public offerings has been used for, and the Company expects
          to continue to use cash for, additional equipment purchases and
          subscriber acquisition costs. NETCOM has capital lease
          obligations of $6.0 million as of December 31, 1997. Furthermore,
          NETCOM has guaranteed monthly usage levels with WorldCom and has
          certain termination liabilities with its communications vendors
          (including WorldCom). The yearly commitments (exclusive of
          certain usage discounts) in the years 1998, 1999, 2000 and 2001
          are $9.3 million, $9.3 million, $7.6 million and $4.2 million,
          respectively. The aggregate termination liabilities as of January
          1, 1998 are approximately $15 million. In addition, NETCOM has
          minimum future rental payments under various noncancelable
          operating leases of $16.6 million as of December 31, 1997.

               As of December 31, 1997, NETCOM had cash and cash
          equivalents of $63.4 million and working capital of $38.7
          million. NETCOM used $14.9 million working capital in 1997.

               The Company believes that, under its business plan for the
          NETCOM business, the net proceeds from the Private Offering,
          together with vendor financing and cash from operations will be
          sufficient to meet anticipated working capital and capital
          expenditure requirements of its existing operations. However, the
          forward-looking information contained in the previous sentence
          may be affected by a number of factors, including the matters
          described in this paragraph and under "Risk Factors." The Company
          may need to raise additional capital from public or private
          equity or debt sources in order to finance its operations,
          capital expenditures and growth for periods after 1998. Moreover,
          the Company believes that continued growth and expansion through
          acquisitions, investments and strategic alliances is important to
          maintain a competitive position in the market and, consequently,
          a principal element of the Company's business strategy is to
          acquire assets or make investments in businesses that are
          complementary to its and ICG's current operations. The Company
          expects to acquire telecommunications, Internet and related
          businesses that complement ICG's business strategy to offer a
          wide array of telecommunications, Internet and related services
          primarily to communications-intensive business customers.
          Acquisition targets could include U.S. or foreign CLECs, ISPs and
          long distance companies, among others. The Company intends to
          make future acquisitions primarily through the use of ICG Common
          Stock, cash on hand and the proceeds from securities offerings.

               The Company may need to raise additional funds in order to
          take advantage of opportunities for acquisitions, investments and
          strategic alliances, to develop new products or to respond to
          competitive pressures or to fund capital expenditure requirements
          of any acquired businesses. There can be no assurance that the
          Company will be able to raise such capital on acceptable terms or
          at all. In the event that the Company is unable to obtain
          additional capital or is unable to obtain additional capital on
          acceptable terms, the Company may be required to reduce the scope
          of its presently anticipated acquisition opportunities and
          capital expenditures, which could have a material adverse effect
          on its business, results of operations and financial condition
          and could adversely impact its ability to compete and make
          payments on the New Notes.


                                     -35-
     <PAGE>

                                       BUSINESS

          OVERVIEW

               ICG Services, Inc. provides Internet services, through its
          subsidiary, NETCOM, to individuals and to small and medium-sized
          businesses. The Company also acquires telecommunications
          equipment, software and capacity for lease or sale to other
          subsidiaries of ICG. In addition to providing these services, the
          Company intends to grow through acquisitions of
          telecommunications, Internet and related businesses that
          complement ICG's business strategy.

               The Company is a wholly owned subsidiary of ICG, one of the
          nation's leading ICPs of competitive communications services,
          based on estimates of the industry's 1997 revenue. ICG's
          objectives are to provide a wide range of local, long distance
          and data communications services to business end users and
          wholesale customers and to be a premier provider of high quality
          communications services to its targeted business and carrier
          customers. ICG believes that customers are increasingly demanding
          a broad, full service approach to providing services and that, by
          offering a bundled package, ICG will be better able to capture
          business from communications-intensive commercial customers.

          BUSINESS STRATEGY

               The Company's objective is to acquire and consolidate
          telecommunications, Internet and related businesses and bundle
          the services provided by these businesses with ICG's current
          competitive local and long distance telecommunications products.
          By leveraging the Company's relationship with ICG and utilizing
          ICG's extensive network footprint, the Company intends to capture
          the growth in demand from business customers for a full package
          of telecommunications services by offering a wide array of
          services, including Internet services.

               Market Services to Business End Users. The Company is
          focused on marketing a variety of telecommunications and Internet
          products and services primarily to business end users. Through
          its wholly owned subsidiary, NETCOM, the Company currently
          markets Internet services to individuals and to small and medium-
          sized businesses. In January 1997, NETCOM announced plans to
          migrate its customer focus away from high volume, low margin
          consumer customers to higher margin products for small and
          medium-sized business customers. Management believes a targeted
          business end user strategy can better leverage ICG's network
          footprint and telecommunications investment. To date, NETCOM has
          been successful in implementing this plan, and has seen its
          average revenue per customer increase from $21.47 during fiscal
          1996 to $23.92 during fiscal 1997.

               Concentrate on Regional Clusters. The Company believes that
          by focusing its growth on business activities located within
          ICG's network of regional clusters in California, Colorado, Ohio
          and the Southeast, it will be able to more effectively service
          its customers' needs and efficiently market, operate and control
          its network and expanded service offerings. In addition, the
          Company believes that by focusing future growth within ICG's
          existing footprint, it will be able to overlay ICG's support
          services and realize extensive cost synergies. For example, a
          significant portion of NETCOM's customer base is located in
          California. To the extent feasible, NETCOM will route its
          Internet traffic over ICG's California network. NETCOM plans to
          continue to operate and grow its business in the United States
          outside of ICG's network footprint and in Canada and the United
          Kingdom.

               Increase Revenue and Margins through Bundled Services. The
          Company intends to increase its revenue and margins by providing
          a full range of communications products to its end user
          customers. The Company plans to complement ICG's competitive
          local and long distance telecommunications offerings by combining
          the Internet products developed by NETCOM and cross-marketing
          these combined products through ICG's direct sales force.
          Additionally, NETCOM intends to market ICG telecommunications
          products to its small and medium-sized business customer base.


                                     -36-
     <PAGE>
           

               Integrate Investments and Expand. The Company expects to
          acquire telecommunications, Internet and related businesses that
          complement ICG's business strategy to offer a wide array of
          telecommunications, Internet and related services primarily to
          business customers. Acquisition targets could include U.S. and
          foreign CLECs, ISPs and long distance companies, among others.
          The Company intends to make future acquisitions primarily through
          the use of ICG Common Stock, cash on hand and the proceeds from
          securities offerings.

               ICG and the Company believe that the acquisition of NETCOM
          is strategically important as it helps to (i) broaden ICG's
          communications product offerings to include Internet services and
          (ii) provide NETCOM with extensive network infrastructure for the
          on-net transportation of its Internet traffic. The Company will
          continue to look for acquisitions which it believes will benefit
          ICG's objectives to provide a wide range of local, long distance
          and data communications services to business end users and
          wholesale customers and to be a premier provider of high quality
          communications services to its targeted business and carrier
          customers.

                                        NETCOM

               NETCOM is a leading provider of high quality Internet
          solutions to individuals and small and medium-sized businesses in
          the United States and also provides the same high quality
          Internet solutions in Canada and the United Kingdom. NETCOM
          offers a broad spectrum of Internet solutions designed to enhance
          customer productivity through the integration and application of
          technologies by providing a comprehensive software platform to
          interface with the Web, premium quality Internet access and
          support services and on-line tools to automate Web site creation
          and development. These offerings have led to significant growth,
          with revenue increasing from approximately $2.4 million for 1993
          to approximately $160.7 million for fiscal 1997. In January 1997,
          NETCOM announced plans to migrate its customer focus away from
          high volume, low margin consumer customers to higher margin
          products for small and medium-sized business customers.

               NETCOM owns and operates a data communications network
          consisting of 17 hubs containing frame relay switches and high-
          performance routers connecting a backbone of leased ATM switches
          and leased high-speed dedicated data lines in the United States,
          Canada and the United Kingdom. NETCOM maintains 247 POPs in the
          United States and Canada and also offers virtual local access
          numbers in Canada and the United Kingdom. The design and
          architecture of the physical network permits NETCOM to offer
          highly flexible, reliable high-speed services to its customers
          and support significant subscriber growth. The NETCOM
          infrastructure is monitored by NOCs in San Jose, Dallas, Toronto,
          and London.

               NETCOM provides Internet solutions principally through dial-
          up, direct access and Web site hosting services. Direct access
          and Web site hosting services provide higher revenue per customer
          and higher margins than dial-up services. NETCOM also receives
          revenue from value-added services such as security, anti-virus
          and data storage.

          Market Overview

               The Internet is a global collection of thousands of computer
          networks cooperating to enable commercial organizations,
          educational institutions, government agencies and individuals to
          communicate electronically, to access and share information and
          to conduct business. The Internet originated with the ARPAnet, a
          restricted network started in 1969 by the United States
          Department of Defense to provide efficient and reliable long-
          distance data communications among the disparate computer systems
          used by government funded researchers and organizations. Unlike
          other public and private telecommunications networks that are
          managed by businesses, government agencies and other entities,
          the Internet is a cooperative interconnection of many such public
          and private networks. The networks that comprise the Internet are
          connected in a variety of ways, including by the public switched
          telephone network and by high speed, dedicated leased lines. Open
          communications on the Internet are enabled by TCP/IP, an
          internetworking standard that enables communication across the
          Internet regardless of the hardware and software used. In the


                                       -37-
     <PAGE>


          late 1980s and early 1990s, the use of the Internet by businesses
          and universities as a communications and research tool began to
          grow dramatically. In 1993, Web technology was introduced to the
          Internet paving the way for rapid commercialization of the
          Internet on a global basis. Since the introduction of the Web,
          continual technological advances, including new and innovative
          software applications, have led to a more robust, lower-cost
          infrastructure, improved security, an expanded array of enhanced
          services and a dramatic increase in content.

               Internet access services is one of the fastest growing
          segments of the telecommunications services market. According to
          industry research analysts, the market for consumer and business
          Internet connectivity and enhanced services exceeded $3 billion
          in 1996, and is estimated to reach $18 billion in revenue by the
          year 2000, reflecting a compounded annual growth rate of
          approximately 50%. Business connectivity and value-added services
          are estimated to represent in excess of 50% of the overall
          market. The use of the Internet by small and medium-sized
          businesses in particular is expected to grow substantially from
          its current low levels of market penetration.

               ISPs provide customers with a variety of services to meet
          their Internet-related needs. Internet services include the
          following categories: (1) access services (dial-up, direct access
          and Web site hosting); (2) value-added services (security
          services, anti-virus and data storage); and (3) content services
          (information creation, aggregation and delivery). Some ISPs offer
          all of these services while others specialize in only one or two.
          As the market continues to segment in these three areas, there
          are opportunities for both the specialists who can provide
          superior service in one area, as well as full-service providers
          who can bundle services and offer discounts. There were over
          4,300 ISPs in the United States and Canada as of October 31, 1997
          compared to just over 3,000 as of October 31, 1996. There have
          been some large acquisitions of ISPs as CLECs and others attempt
          to enter the industry. Because of low barriers to entry, there
          are local and regional ISPs entering the market, which has caused
          the level of competition to intensify.

               The availability of an expansive variety of compelling
          business and consumer applications over the Internet has
          attracted a large number of consumer and business users. The
          total number of connections to ISP networks, according to
          International Data Corporation ("IDC"), was 17 million as of
          November 1997, and is predicted to reach over 30 million by the
          year 2000. Aggregate revenue from the retail segment of the ISP
          industry exceeded $3 billion in 1996. Market trends contributing
          to the overall growth in connectivity include advancements in
          technologies required to navigate the Internet, the availability
          of Internet connectivity, and the rich consumer and business
          content available. The Company believes that ongoing development
          of access to and applications of the Internet will continue to
          attract a valuable consumer audience for businesses.


                                     -38-
     <PAGE>


          Market Growth

               Industry analysts anticipate continued rapid growth for the
          ISP market. Specifically, IDC forecasts the ISP market's annual
          aggregate revenue to grow from $3.3 billion in 1996 to $18.3
          billion in the year 2000, excluding content revenue.

               Graphic consists of two pie charts, displayed side by side,
          depicting the percentage breakdown of annual revenue for each of
          the four markets comprising the ISP market for years 1996 and
          2000 (forecast).  The overall size of the pie chart for the year
          2000 is larger than that for the year 1996, representing the
          greater total revenue in the year 2000.  The charts, however, are
          not drawn to scale.

               In tabular form, the graphic presents the following
          information:


                       1996                                2000
                       ----                                ----

           Corporate Access         58%         Value-Added            38%

           Individual Access        29%         Corporate Access       36%

           Wholesale                 9%         Individual Access      19%

           Value-Added               4%         Wholesale               7%  
                                  -----                              -----
                           $3.3 Billion                      $18.3 Billion

          Source: IDC

               In addition to connectivity solutions, business customers
          increasingly are seeking a variety of value-added solutions to
          take full advantage of the Internet. Technological advances such
          as increases in microprocessor speeds, the introduction of
          innovative software tools and the development of higher bandwidth
          data networking technology have led to rapid innovation and
          development of value-added Internet services. The principal
          value-added services being offered among business oriented ISPs
          today include Web site hosting services, security solutions,
          commerce solutions, intranet services, business content, and
          advanced Internet applications such as voice and video
          conferencing and data storage and retrieval solutions. Value-
          added solutions are projected by industry analysts to increase to
          $7 billion in revenue by the year 2000 from $130 million in 1996.

               As a result of the growing Internet audience, businesses
          have discovered that the Internet provides a valuable marketing
          forum and can enhance communications with customers,
          geographically distributed offices and business partners,
          allowing them to quickly reduce operating costs, access valuable
          information and reach additional markets. Increasingly,
          businesses are utilizing the Internet for mission-critical
          applications such as sales, customer service and project
          coordination. In addition, a growing number of businesses are
          implementing secured virtual private networks over the Internet,
          as a more economical option to dedicated private networks, in
          order to provide internal company communications (intranets) and
          to link with their customers and suppliers (extranets). According
          to IDC, corporate access revenue from the retail segment of the
          ISP industry was approximately $1.9 billion in 1996.


                                      -39-
     <PAGE>


               Access-related revenue is projected by industry analysts to
          approach $10 billion by the year 2000. Most of the growth in
          access revenue is expected to be attributable to dedicated
          access.

               Graphic consists of two pie charts, displayed side by side,
          depicting the percentage breakdown of annual revenue for each of
          the three sources of access-related revenue in the ISP market for
          the years 1996 and 2000 (forecast).  The overall size of the pie
          chart for the year 2000 is larger than that for the year 1996,
          representing the greater total revenue in the year 2000.  The
          charts, however, are not drawn to scale.

               In tabular form, the graphic presents the following
          information:


                      1996                                2000
                      ----                                ----

           Corporate Dedicated                Corporate Dedicated  
           Access                  37%        Access                   55%

           U.S. Household                     U.S. Household           
           Dial-up Access          33%        Dial-up Access           34%

           Corporate Dial-up                  Corporate Dial-up           
           Access                  30%        Access                   11%
                                  ----                                ----
                          $2.9 Billion                       $10.1 Billion


          Source: IDC

          The NETCOM Solution

               NETCOM's mission is to help individual professionals and
          small and medium-sized businesses work more productively using
          the Internet. Historically, NETCOM and other ISPs have pursued a
          customer acquisition strategy based on offering a $19.95 per
          month, flat-rate unlimited Internet dial-up access product, which
          is both high volume and low margin. In January 1997, NETCOM
          announced plans to migrate its customer focus away from high
          volume, low margin consumer customers to higher margin products
          for small and medium-sized business customers. NETCOM's solution
          is to offer a variety of packages that a customer can tailor to
          its specific needs and to offer premium performance and customer
          service. NETCOM believes that those customers that demand extra
          services (more mailboxes, research library access, anti-virus
          software) will be willing to pay more if they are assured
          convenience and reliability. NETCOM plans to gradually migrate
          its existing customer base to higher margin premium services and
          expects that low use, low margin customers will switch to lower-
          cost providers. NETCOM has designed a series of packages aimed at
          addressing the different needs of its customers.

               Dial-Up Services. NETCOM's dial-up customers receive an
          integrated Internet solution consisting of high quality access,
          software and 24 hours a day, seven days a week, automated
          customer support. NETCOM dial-up customers connect directly to
          the Internet via NETCOM's own network which provides high speed,
          reliable access. All NETCOM dial-up accounts allow access to the
          Internet's resources, including E-mail, the Web and USENET
          newsgroups. In addition, NETCOM dial-up customers can receive a
          one Mb personal Web page, access to a daily customized newspage
          via E-mail, and access to on-line financial, corporate and market
          information and analytical tools. Enhanced services available to
          dial-up customers include features such as additional E-mail
          addresses, enhanced support offerings, software and virus
          updates, access to research libraries, a domain name service,
          monthly back-up, 10 Mb data storage, 750 Mb per month data
          transfer capability and premium service and technology support.

               NETCOM customers can quickly register using NETCOMplete
          software, available for both Windows and Macintosh platforms via
          compact disk, and set up a NETCOM account by following a sequence

                                      -40-
     <PAGE>


          of simple, on-screen steps. All of the software needed to connect
          and access the Internet is automatically installed and
          configured, eliminating the need for complex set up procedures.
          NETCOMplete also provides an easy-to-use interface as well as
          software from leading industry participants, bookmark managers,
          off-line browsers and additional software that enhances a
          customer's Internet experience. Revenue from dial-up services
          increased from $102.9 million for fiscal 1996 to $133.7 million
          for fiscal 1997, representing approximately 85% and 83%,
          respectively, of total revenue for such periods.

               Direct Access Services. NETCOM offers a full suite of high-
          speed dedicated Internet connection and service products which
          provide its small and medium-sized business customers with direct
          access to the full range of Internet applications. These Internet
          services are offered to businesses over leased lines at various
          speeds, including 56 Kbps, T-1 and T-3 levels, depending upon the
          customer's needs. Through its direct access product line, NETCOM
          offers Internet access services including domain name and IP
          address, router configurations, on-line usage statistics and
          security consultation. There are generally no usage charges for
          any of NETCOM's dedicated customers, and E-mail service and
          USENET news feed are provided at no additional charge. Direct
          network connection requires the customer to obtain a leased line
          from ICG or another local telephone company. NETCOM provides an
          Internet connection based on frame relay technology provided by
          local telephone carriers. Revenue from direct access services
          increased from $16.3 million for fiscal 1996 to $19.5 million for
          fiscal 1997, representing approximately 14% and 12%,
          respectively, of total revenue for such periods.

               Web Site Hosting Services. NETCOM offers Web site hosting
          services to its small and medium-sized business customers as well
          as to individuals. Web site hosting services include client
          domain name registration, hosting and site maintenance. Services
          provided are fully scalable, but would, in a typical package,
          include domain name registration, 10 E-mail addresses, access to
          NETCOM's on-line Business Center, CGI scripting (which enables
          visitors to the Web site to leave their names and addresses),
          weekly back-up service, 50 Mb of data storage, 1,000 Mb per month
          of data transfers, traffic logs and Web statistics and premium
          service and technology support. Revenue from Web site hosting
          services increased from $1.3 million fiscal 1996 to $6.3 million
          for fiscal 1997, representing approximately 1% and 4%,
          respectively, of total revenue for such periods.

               Value-Added Services. As part of its dial-up client access
          and Web site hosting services, NETCOM offers its small and
          medium-sized business customers value-added business connectivity
          solutions packages designed to address their needs of increased
          security, reliability, access speed and customer service. The
          Company believes that businesses are willing to pay premium
          prices for these premium services. One such feature is Automatic
          Reconnect which automatically reroutes a customer's traffic to an
          alternate ISDN line so that in the event of certain kinds of
          service interruptions, customers may remain connected. In order
          to provide a secure, private connection among multiple specific
          locations, NETCOM's SecureConnect product performs a security
          assessment and then implements, monitors and troubleshoots a
          flexible security solution to provide secure communication
          between central offices, branch offices and off-site employees
          without jeopardizing the integrity of the internal network.
          Another value-added service NETCOM offers is 24 hours a day,
          seven days a week support. For larger customers, NETCOM offers
          flexible, high-speed dedicated line service that is scalable to
          grow as traffic increases. Other value-added services offered
          include password protected Web sites, usage statistics, anti-
          virus software and additional domain names.

               NETCOM's Internet connectivity services are available in the
          following package offerings:

           NETCOMplete -- $19.95 monthly    NETCOMplete Advantage --
           . Standard dial-up access        $24.95 monthly 
           . Productivity software; anti-   . Standard dial-up access 
             virus file conversion          . 2 mailboxes, forwarding 
           . NETCOM Personal News,          . Productivity software; anti-
             Personal Finance                 virus file conversion 
           . Toll free support (24x7)       . NETCOM Personal News,
                                              Personal Finance 
                                            . Toll free support (24x7)
                                              plus priority queue


                                      -41-
     <PAGE>


           NETCOMplete Advantage Pro --     NETCOM Identity Pack -- $45
           $29.95 monthly                   monthly
           . All of NETCOMplete Advantage   . All of NETCOMplete Advantage
             plus:                            with Web site
           . Research Libraries               plus: 
           . Software updates               . Domain name service 
           . Virus protection updates       . Monthly back-up 
           . Toll free support (24x7) plus  . 10 Mb data storage 
             priority que                   . 750 Mb/month data transfer 
                                            . Toll free support (24x7)

           NETCOM Business Web Hosting --   NETCOM DirectConnect -- $400 &
           $25-$350 monthly                 up monthly
           . Domain name service            . Domain name and IP address 
           . 10 mailboxes                   . Line installation and
           . NETCOM Business Center           maintenance 
           . 50 Mb data storage             . Router configuration and
           . 100 Mb/month data transfer       support 
           . Traffic logs, Web site         . On-line usage statistics 
             statistics                     . Automatic Reconnect 
           . Toll free support (24x7)       . NewsServer access (up to 25
                                              users) 
                                            . Needs analysis 
                                            . Toll free support (24x7) and
                                              technical support 


          Software and Services Development

               NETCOM has placed significant emphasis on developing its
          products and services, both internally and through third party
          arrangements. NETCOM's newest software package, NETCOMplete,
          features NETCOM's versions of leading products including
          Microsoft Internet Explorer 4.0 or Netscape Navigator 3.0,
          Qualcomm Eudora Light, McAfee Webscan, SurfWatch Software and
          Service, VocalTec Internet Phone and Internet Phone Lite, NETCOM
          Unplugged by WebEx, NETCOM Unplugged Lite, Storm EasyPhoto,
          Macromedia Shockwave, Adobe Acrobat Reader, OnBase DragNet and
          DragNet Lite, NCSA Telnet, Quarterdeck Global Chat, IBM
          Cryptolope, Microsoft NetMeeting, Internet Mail, Internet News
          and Comic Chat. NETCOM intends to design additional features into
          future versions of NETCOMplete and additional products.
          Additionally, NETCOM will continue to enhance the ease of
          installation and automatic configuration of its products.

          Marketing and Distribution

               NETCOM's primary focus is on providing high quality Internet
          solutions to individuals and to small and medium-sized
          businesses. In order to achieve this objective, NETCOM engages in
          marketing and advertising activities, alliances with key
          strategic partners, seminars in targeted regional markets, and
          distribution via both direct and indirect channels. NETCOM's
          current marketing efforts emphasize its strategy of focusing on
          providing premium services to businesses and individuals through
          integrated product offerings. The campaign incorporates the theme
          of productivity and efficiency and includes an emphasis on the
          full range of NETCOM solutions. NETCOM's current distribution
          channels include the following:

               OEM. Original equipment manufacturer arrangements with
          computer, hardware, software and modem manufacturers account for
          a significant portion of NETCOM's new accounts. NETCOM's CPU OEM
          partners include Hewlett Packard Company, Acer America
          Corporation and NEC Corporation. NETCOM has also entered into a
          number of bundling arrangements with software companies,
          including Netscape Corp. and Microsoft Corporation. Arrangements
          with modem manufacturers such as U.S. Robotics and Global Village
          Communication account for a significant portion of OEM activity.
          New agreements with companies such as Cisco and Farallon
          Computing, Inc. will be increasingly focused on Web site hosting
          and direct access.


                                      -42-
     <PAGE>

               VAR. As NETCOM increases its focus on providing solutions to
          small and medium-sized business segments, the value added
          resellers who support this segment will become an increasingly
          active channel of distribution, selling the entire suite of
          NETCOM products. The network of NETCOM VARs are supported by
          NETCOM sales representatives both in the regional territories and
          in the Telesales center. Current VARs include Transnet
          Corporation, Nova Quest Infosystems, PC Solutions, Kissane
          Business Systems, Inc. and Cohesive Systems, Inc.

               Retail. A significant portion of NETCOM's new accounts is
          generated through retail distribution of NETCOMplete compact
          disks, which currently are offered in two versions. One is
          offered at a suggested retail price of $4.95; the other is a
          larger package featuring extensive third party software and books
          for a suggested retail price of $39.95. NETCOM's distributors
          include national chains such as CompUSA, Circuit City Stores,
          Inc., and Computer City, as well as regional entities such as
          Fry's Electronics, Inc. NETCOM distributes to retailers through
          national distributors such as Ingram Micro, Inc. and TechData
          Corporation, and through regional distributors such as Liuski
          International, Inc. Retail coverage is also provided via the OEM
          agreements described above.

               Telesales. A significant portion of NETCOM's business is
          conducted through inbound and outbound Telesales efforts.
          Telesales support business generated by direct marketing
          activities, trade shows and referrals, and is aligned to support
          the focus on targeted regional markets.

               The Web. NETCOM also generates a portion of its revenue from
          customers who sign up for services by accessing NETCOM's Web
          site.

          Customer Support

               NETCOM believes that it is important to provide prompt and
          effective assistance to its subscribers. NETCOM provides network
          monitoring and technical assistance services 24 hours a day,
          seven days a week. Most support personnel respond to telephone
          inquiries and inquiries from E-mail, faxes and letters. There are
          also a significant number of personnel dedicated to building
          automated support systems such as on-line knowledgebases, fax-on-
          demand systems and interactive voice response systems. The
          demands on NETCOM's customer support resources have increased
          with NETCOM's rapidly changing subscriber base, and NETCOM has
          from time to time experienced difficulties in providing adequate
          levels of support. An October 1997 customer satisfaction survey
          by NETCOM revealed customer support and customer service as a
          primary source of customer dissatisfaction. NETCOM is aware that
          its systems require investments to meet the more complex needs of
          its customers, especially its small to medium-sized business
          customers. NETCOM is taking steps to help customer support
          resources keep pace with projected increases in subscribers'
          demands. During 1997, NETCOM increased its customer support staff
          by 44 employees to 285 employees on December 31, 1997. NETCOM
          also implemented automated support services such as the WebTech
          Online Knowledgebase, the SupportFacts fax-on-demand system, and
          an Interactive Voice Response system, which significantly
          increased the support group's capacity to handle queries and
          improve customer satisfaction. NETCOM intends to continue to
          improve its customer support capabilities in order to keep pace
          with changes in NETCOM's subscriber base; however, there can be
          no assurance that NETCOM will be successful in doing so. See
          "Risk Factors -- Integrations of Acquired Business" and "--
          Dependence on Key Personnel."

          Data Communications Infrastructure

               NETCOM maintains an extensive data communications
          infrastructure that enables it to provide nationwide digital
          Internet connectivity services to its subscribers. NETCOM's
          network of POPs provides Internet access to subscribers by means
          of a dedicated line or local telephone call. NETCOM's ability to
          offer efficient access to the Internet is due in part to NETCOM's
          high-capacity data communications network, configured exclusively
          for facilitating Internet access. NETCOM's United States network
          consists of 13 regional hubs, each containing carrier grade frame
          relay switches and high capacity routers. These hubs are
          interconnected via a fiber optic T-3, 45 Mbps backbone and ATM
          transport together with other high-speed data connections between
          the T-3 backbone and NETCOM's POPs. The T-3 backbone connects to


                                   -43-
     <PAGE>


          Internet gateways in Santa Clara (at two sites), California, San
          Jose, California, Newark, New Jersey, Chicago, Illinois and
          Washington, D.C. In addition, NETCOM has Internet gateways in
          Toronto and London.

               NETCOM maintains two NOCs in the United States: one at its
          San Jose headquarters and the other in Dallas. Through these
          centers, NETCOM's technical staff continually monitors network
          utilization and security, including equipment at individual local
          access numbers, to ensure reliable Internet connectivity service.
          NETCOM's Dallas center reduces its dependence on its primary San
          Jose facilities. However, this does not eliminate the significant
          risk to NETCOM's operations from a natural disaster or other
          unanticipated event at one of these two sites. See "Risk Factors
          -- Dependence on Network Infrastructure; Risk of System Failure;
          Security Risks." Internationally, NETCOM has NOCs in Toronto and
          London.


                                     -44-
     <PAGE>

               NETCOM is continuing to enhance capacity and capabilities of
          its data communications network. NETCOM continues to add ATM
          switches, and plans to continue increasing capacity as its
          customer base increases. Additionally, NETCOM has efforts
          currently underway to increase the available dial-up speeds. As
          of December 31, 1997, NETCOM had 247 POPs in the United States
          and Canada, as listed below. Furthermore, NETCOM offers virtual
          local access lines in Canada and the United Kingdom.


   ALABAMA        COLORADO       INDIANA         NEW             PENNSYLVANIA
                                                 HAMPSHIRE
     Birmingham     Colorado       Bloomington     Manchester      Allentown
                    Springs
     Huntsville     Denver         Ft. Wayne       Nashua          Harrisburg
   ARKANSAS         Ft.            Indianapolis    Portsmouth      King of
                    Collins                                        Prussia
     Little Rock  CONNECTICUT    IOWA            NEW JERSEY        Pittsburgh
   ARIZONA          Danbury        Des Moines      Atlantic        Reading
                                                   City
     Phoenix        Hartford     KANSAS            Cherry          Wilkes
                                                   Hill            -Barre
     Tucson         New Haven      Kansas City     Eatontown     RHODE ISLAND
   CALIFORNIA       Stamford       Topeka          Hackensack      Providence
     Alameda      DELAWARE         Wichita         Morristown    SOUTH
                                                                 CAROLINA
     Bakersfield    Wilmington   KENTUCKY          New             North
                                                   Brunswick       Charleston
     Benecia      DISTRICT OF      Lexington     NEWARK          Columbia
     /Vallejo
     Corona       COLUMBIA         Louisville      Paterson        Greenville
                                                   /Passaic
     Escondido      Washington   LOUISIANA         Pennington    TENNESSEE
     Fremont      FLORIDA          Baton Rouge     Princeton       Chattanooga
     Fresno         Boca           New Orleans     Trenton         Knoxville
                    Raton
     Irvine         Clearwater/  MAINE             Westfield       Memphis
     /Santa
     Anna
     La Puente      St.            Portland      NEW MEXICO        Nashville
     /Covina        Petersburg
     Long Beach     Cocoa        MARYLAND          Albuquerque   TEXAS
     Los Angeles    Daytona        Baltimore       Santa Fe        Austin
                    Beach
     Mission        Deland         Columbia      NEW YORK          Bryan
     Viejo
     Modesto        Fort Walton    Frederick       Albany          Dallas
                    Beach
     Monterey       Ft.            Kensington      Binghamton      El Paso
                    Lauderdale
     Morgan Hill    Ft. Meyers     Rockville       Buffalo         Ft. Worth
     Ontario        Gainesville  MASSACHUSETTS     Garden          Harlingen
                                                   City
     Palm           Jacksonville   Amherst         New York        Houston
     Springs                                       City(2)
     Palo Alto      Miami          Boston          Poughkeepsie    Irving
     Pasadena       Orlando        Framingham      Rochester       San Antonio
                                                   /Webster
     Petaluma       Pensacola      Lawrence        Ronkonkoma/   UTAH
     Pleasanton     Sarasota       Lowell          Holbrook        Ogden
     Sacramento     Tallahassee    Springfield     Syracuse        Orem
                                                   /Liverpool
     Salinas        Tampa          Taunton         Utica/Rome      Salt Lake
                                                                   City
     San            West Palm      Wellesley     NORTH CAROLINA  VERMONT
     Bernardino     Beach
     San Diego    GEORGIA          Worcester       Charlotte       Burlington
     San            Athens       MICHIGAN          Raleigh       VIRGINIA
     Francisco/                                    /Durham
       Daly         Atlanta        Ann Arbor       Wilmington      Leesburg
       City(2)
     San Jose(2)    Augusta        Detroit         Winston         Norfolk
                                                   -Salem
     San Luis       Macon          East Lansing  OHIO              Richmond
      Obispo
     San Marcos     Savannah       Grand Rapids    Akron           Roanoke
     San Mateo    IDAHO            Kalamazoo       Cincinnati      Woodbridge
     San Rafael     Boise          Pontiac         Cleveland     WASHINGTON
     Santa        ILLINOIS         Warren          Columbus        Everett
     Barbara
     Santa Cruz     Alsip        MINNESOTA         Dayton          Kennewick
     Santa Maria    Aurora         Minneapolis     Elyria          Olympia
                                                                   /Lacey
     Santa Rosa     Champaign      Rochester       Hamilton        Seattle
     Stockton       Chicago      MISSOURI          Toledo          Silverdale
     Temecula       Chicago/       Springfield     Youngstown      Spokane
                    Downtown
     Thousand       Joliet         St. Louis     OKLAHOMA          Tacoma
     Oaks
     Valencia       Moline       NEBRASKA          Oklahoma        Vancouver
                                                   City
     Ventura        Oakbrook/      Lincoln         Tulsa         WEST
                                                                 VIRGINIA
     Victorville    Downers        Omaha         OREGON            Martinsburg
                    Grove
     Walnut         Palatine     NEVADA            Eugene        WISCONSIN
     Creek          /N. Chicago
     Woodland       Peoria         Las Vegas       Portland        Appleton
                                                   /Beaverton      /Green Bay
     Woodland       Rockford       Reno            Salem           Kenosha
     Hills
                    Waukegan                                       Madison
                                                                   Milwaukee


                                     -45-
     <PAGE>

              CANADA
                Barrie       Georgetow  London       Semie
                             n
                Calgary      Halifax    Montreal     Toronto
                Collingwood  Hamilton   Oshawa       Vancouver
                /Wasaga
                  Beach      Kingston   Ottawa       Victoria
                Edmonton     Kitchener  St.          Windsor
                                        Catherine's
                                                     Winnipeg

          Competition

               The market for Internet access and related services is
          highly competitive. There are no substantial barriers to entry
          and the Company anticipates that competition will continue to
          intensify as the use of the Internet grows. The tremendous growth
          and potential market size of the Internet access market has
          attracted many new start-ups as well as existing businesses from
          different industries. Current and prospective competitors
          include, in addition to other national, regional and local ISPs,
          long distance and local exchange telecommunications companies,
          cable television, direct broadcast satellite, wireless
          communications providers, and on-line service providers.

               ISPs. According to industry sources, there are over 4,300
          ISPs in the United States and Canada as of October 31, 1997,
          consisting of national, regional and local providers. The
          Company's current primary competitors include other ISPs with a
          significant national presence which focus on business customers,
          such as UUNet Technologies, BBN and PSINet. While the Company
          believes that its level of local service and support and target
          market focus distinguish it from these competitors, many of these
          competitors have significantly greater market share, brand
          recognition, and financial, technical and personnel resources
          than the Company. The Company also competes with unaffiliated
          regional and local ISPs in its targeted geographic regions.

               Telecommunications Carriers. The major long distance
          companies (also known as interexchange carriers or IXCs),
          including AT&T, MCI, and Sprint, offer Internet access services
          and compete with the Company. The recent sweeping reforms in the
          federal regulation of the telecommunications industry have
          created greater opportunities for ILECs, including the RBOCs and
          other competitive CLECs, to enter the Internet connectivity
          market. In order to address the Internet connectivity
          requirements of the business customers of long distance and local
          carriers, the Company believes that there is a move toward
          horizontal integration by ILECs through acquisitions or joint
          ventures with and the wholesale purchase of connectivity from
          ISPs. The WorldCom/MFS/UUNet consolidation and GTE's recent
          acquisition of BBN are indicative of this trend. Accordingly, the
          Company expects that it will experience increased competition
          from the traditional telecommunications carriers. Many of these
          telecommunications carriers, in addition to their substantially
          greater network coverage, market presence, and financial
          technical and personnel resources, also have large existing
          commercial customer bases.

               Cable Companies, Direct Broadcast Satellite and Wireless
          Communications Companies. Many of the major cable companies have
          announced that they are exploring the possibility of offering
          Internet connectivity, relying on the viability of cable modems
          and economical upgrades to their networks. Continental
          Cablevision, Inc. and TCI have recently announced trials to
          provide Internet cable service to their residential customers in
          select areas. However, the cable companies are faced with large-
          scale upgrades of their existing plant equipment and
          infrastructure in order to support connections to the Internet
          backbone via high-speed cable access devices. Additionally, their
          current subscriber base and market focus is residential which
          requires that they partner with business-focused providers or
          undergo massive sales and marketing and network development
          efforts in order to target the business sector. Several
          announcements also have recently been made by other alternative
          service companies approaching the Internet connectivity market
          with various wireless terrestrial and satellite-based service
          technologies. These include Hughes Network Systems' announcement
          that it will provide high-speed data through direct broadcast
          satellite technology; CAI Wireless Systems, Inc.'s announcement
          of an MMDS wireless cable operator launching data services via
          2.5 to 2.7 GHz and high-speed wireless modem technology; and
          Winstar Communications, a 38 GHz radio company that wholesales
          its network capacity to other carriers and now offers high-speed
          Internet access to business customers.


                                      -46-
     <PAGE>

               On-line Service Providers. The dominant on-line service
          providers, including Microsoft Network, America Online,
          Compuserve, Inc. and Prodigy, Inc., have all entered the Internet
          access business by engineering their current proprietary networks
          to include Internet access capabilities. The Company competes to
          a lesser extent with these service providers, which currently are
          primarily focused on the consumer marketplace and offer their own
          content, including chat rooms, news updates, searchable reference
          databases, special interest groups and shopping. While Compuserve
          recently announced it will also target Internet connectivity for
          the small to medium-sized business market, this will require a
          significant transition from a consumer market focus to a business
          market focus.

               The Company believes that its ability to attract business
          customers and to market value-added services are keys to its
          future success. However, there can be no assurance that its
          competitors will not introduce similar pricing plans at
          comparable or more attractive prices in the future or that the
          Company will not be required to reduce its prices to match
          competition. Recently, many competitive ISPs have shifted their
          focus from individual customers to business customers. Moreover,
          there can be no assurance that more of the Company's competitors
          will not shift their focus to attracting business customers,
          resulting in even more competition for the Company. There can be
          no assurance that NETCOM will be able to offset the effects of
          any such competition or resulting price reductions through an
          increase in the number of its subscribers, higher revenue from
          enhanced services, cost reductions or otherwise. Increased
          competition could result in erosion of NETCOM's market share and
          adversely affect NETCOM's operating results. See "Risk Factors --
          Competition."

          Intellectual Property and Other Proprietary Rights

               NETCOM relies on a combination of worldwide copyright and
          trademark laws, trade secrets, software security measures,
          license agreements and nondisclosure agreements to protect its
          proprietary technology and software products. NETCOM currently
          has no domestic or foreign patents or patent applications
          pending. However, NETCOM does have registered or pending
          trademarks in various countries including the United States.
          NETCOM from time to time receives notices claiming that it is
          infringing the proprietary rights of third parties. Any such
          claims could be time-consuming, result in costly litigation,
          cause product shipment delays or lead NETCOM to enter into
          royalty or licensing agreements rather than disputing the merits
          of such claims. For a more extensive discussion on intellectual
          property and rights, see "Risk Factors -- Limited Intellectual
          Property Protection."

          Employees

               As of December 31, 1997, NETCOM employed 813 persons,
          including 147 in operations, 285 in customer support, 174 in
          marketing and distribution, 147 in administration and 60 in Web
          site and software integration, all of whom are full-time
          employees. None of NETCOM's employees is represented by a labor
          union and NETCOM considers its employee relations to be good.

          Properties

               NETCOM's executive offices and data communications centers
          are located in San Jose, California, where the Company currently
          leases approximately 183,000 square feet under various leases in
          three buildings that expire during various months in 1999. In
          addition, the Company leases approximately 60,800 square feet in
          Dallas, Texas for its second data communications center. The
          Company also leases space (typically less than 500 square feet)
          in various geographic locations to house the telecommunications
          equipment for each of its local access numbers. The Company's
          Canadian subsidiary leases approximately 19,600 square feet in
          Toronto, Canada. The Toronto lease expires in December 2000. The
          Company's United Kingdom subsidiary leases approximately 22,800
          square feet in Bracknell, United Kingdom. The United Kingdom
          lease expires in March 2014.


                                     -47-
     <PAGE>


          Litigation

               A putative class action lawsuit, Adam L. Swinehart, on
          behalf of himself and others similarly situated v. NETCOM On-Line
          Communication Services, Inc., was filed on July 15, 1997 in the
          Superior Court of California, Orange County, alleging unfair
          business practice and related causes of action against NETCOM in
          connection with its offers of free trial periods and cancellation
          procedures and claiming damages of at least $10 million. The case
          is in preliminary stages, the complaint has been answered and
          plaintiff has served initial requests for discovery. NETCOM
          believes it has meritorious defenses to such claims and intends
          to vigorously defend the action.

               The Federal Trade Commission ("FTC") is conducting an
          inquiry regarding the advertising, marketing, subscription and
          billing practices of NETCOM. NETCOM believes that it has made
          reasonable efforts to comply with applicable laws. If the FTC
          were to conclude that NETCOM violated any applicable law, it
          could seek relief in the form of equitable relief, civil monetary
          penalties, or other remedies.

               The Company is from time to time involved in litigation in
          the course of its business. The Company is currently involved in
          certain other litigation and potential claims which management
          believes, based on facts presently known, will not have a
          material adverse effect on the Company's business, operating
          results or financial condition. In addition, from time to time
          the Company receives notices claiming that it is infringing the
          proprietary rights of third parties, and there can be no
          assurance that the Company will not become the subject of
          infringement claims or legal proceedings with third parties with
          respect to current or future products. See "Business --
          Intellectual Property and Other Proprietary Rights."


                                    -48-
     <PAGE>


          MANAGEMENT

               Set forth below are the names, ages and positions of
          directors and executive officers of the Company.

                     NAME           AGE               POSITION
                     ----           ---               --------
           J. Shelby Bryan . . . .   52  Chairman of the Board of
                                          Directors, President and
                                          Chief Executive Officer
           James D. Grenfell . . .   46  Executive Vice President, Chief
                                          Financial Officer
                                          and Director
           H. Don Teague . . . . .   55  Executive Vice President, General
                                          Counsel,
                                         Secretary and Director
           David W. Garrison . . .   42  Executive Vice President and
                                          Director, and Chairman
                                          of the Board of Directors and
                                          Chief Executive
                                         Officer of NETCOM
           Eric W. Spivey  . . . .   37  Senior Vice President, President
                                          and Chief Operating 
                                          Officer of NETCOM
           Michael D. Kallet . . .   44  Senior Vice President, and Senior
                                          Vice President,
                                         Products, Technology and Business
                                          Development of
                                          NETCOM
           Sheldon S. Ohringer . .   41  Director

               J. Shelby Bryan was appointed Chairman of the Board of
          Directors, President and Chief Executive Officer of the Company
          in January 1998. In May 1995, Mr. Bryan was appointed President,
          Chief Executive Officer and a Director of ICG. He has 18 years of
          experience in the telecommunications industry, primarily in the
          cellular business. He co-founded Millicom International Cellular
          S.A. ("Millicom"), a publicly owned corporation providing
          cellular service internationally, served as its President and
          Chief Executive Officer from 1985 to 1994 and has served as a
          Director through the present.

               James D. Grenfell, Executive Vice President, Chief Financial
          Officer and Director of the Company, joined ICG as Executive Vice
          President and Chief Financial Officer in November 1995.
          Previously, Mr. Grenfell served as Director of Financial Planning
          for BellSouth Corporation and Vice President and Assistant
          Treasurer of BellSouth Capital Funding. A Chartered Financial
          Analyst, Mr. Grenfell has been a telephone industry financial
          executive for over 20 years. He was with BellSouth from 1985
          through November 1996, serving previously as Finance Manager of
          Mergers and Acquisitions. He handled BellSouth's financing
          strategies, including capital market financings as well as public
          debt and banking relationships. Prior to BellSouth, Mr. Grenfell
          spent two years as a Project Manager with Utility Financial
          Services and six years with GTE of the South, a subsidiary of GTE
          Corporation, including four years as Assistant Treasurer.

               H. Don Teague, Executive Vice President, General Counsel,
          Secretary and Director of the Company, joined ICG as Executive
          Vice President, General Counsel and Secretary in May 1997. Prior
          to this position, Mr. Teague was Senior Vice President,
          Administration and Legal with Falcon Seaboard Holdings, L.P. and
          its predecessors from April 1994 through April 1997. From 1974 to
          April 1994, Mr. Teague was a partner in the law firm of Vinson &
          Elkins L.L.P.

               David W. Garrison has been Executive Vice President and a
          Director of the Company since January 1998. In March 1996, Mr.
          Garrison was appointed Chairman of the Board of Directors of
          NETCOM and, since April 1995, Mr. Garrison has been NETCOM's
          Chief Executive Officer. Prior thereto, he served as its
          President and a Director from February 1995. Mr. Garrison also
          served as NETCOM's Chief Operating Officer from February 1995 to
          April 1995. Mr. Garrison also serves on the Boards of Directors
          of Ameritrade Holding Corporation, Traveling Software, Inc. and
          the Internet Service Association. From December 1990 to September


                                      -49-
      <PAGE>


          1994, Mr. Garrison was President of SkyTel, a division of Mobile
          Telecommunications, Inc. ("MTEL"). During his association with
          MTEL (1990 to 1994), Mr. Garrison also held positions as Senior
          Vice President and Vice President. From 1986 to 1990, Mr.
          Garrison served successively as Chief Operating Officer,
          President, Chief Executive Officer and Chairman for Dial Page, a
          regional paging carrier based in Greenville, South Carolina.

               Eric W. Spivey, Senior Vice President of the Company, has
          served as President and Chief Operating Officer of NETCOM since
          March 1998.  Mr. Spivey joined NETCOM in January 1996 as
          President, NETCOM International.  Prior to his appointment to
          NETCOM, Mr. Spivey held senior positions with the Dun &
          Bradstreet Corporation for more than a decade in North America,
          Europe, Asia-Pacific and Latin America, including Chief Executive
          Officer for the Australia and New Zealand businesses.  

               Michael D. Kallet, Senior Vice President of the Company, has
          served as Senior Vice President, Products, Technology and
          Business Development of NETCOM since August 1996. From December
          1995 to August 1996, Mr. Kallet served as NETCOM's Vice President
          of Software Engineering. Prior to joining NETCOM, Mr. Kallet was
          the founder of MK Management Consultants from October 1994 to
          November 1995. He served as Senior Vice President of Development
          for Walker Interactive from December 1993 to October 1994. From
          April 1992 to September 1993 he served as Vice President of
          Research and Development at Verity, Inc. From 1988 through 1992,
          Mr. Kallet was employed by Software Publishing Company.

               Sheldon S. Ohringer, Director of the Company, has served as
          Executive Vice President-Telecom of ICG and President of ICG
          Telecom Group, Inc. since September 1997.  Prior to this
          position, Mr. Ohringer was Senior Vice President of Business
          Development and Strategic Planning for ICG Telecom Group, Inc.
          since November 1994.  Prior to joining ICG, Mr. Ohringer was
          Senior Vice President of Sales and Business Development for U.S.
          Long Distance, Inc. from May 1991 until October 1994.  From May
          1984 until August 1990, Mr. Ohringer held key management and
          executive positions with Telecom* USA, a major long distance
          carrier which was acquired by MCI in 1990.

                    CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

               ICG intends to enter into arrangements with ICG Equipment to
          purchase, lease, license or enter into right-of-use arrangements,
          for telecommunications equipment, software and capacity and
          related services. The equipment and services provided to ICG will
          be utilized to upgrade and expand its network infrastructure to
          take full advantage of the opportunities and cost savings
          available as a result of the acquisitions made by the Company.
          Any such arrangements will be on an arm's length basis and on
          comparable terms ICG would be able to obtain from a third party.

               Messrs. Bryan, Grenfell, Teague and Ohringer are also
          officers of ICG and Mr. Garrison serves on the Board of Directors
          of ICG. The cost of the time and efforts spent by such officers
          of ICG on matters for the benefit of the Company will be
          reimbursed by the Company.

               The Company and ICG expect that from time to time, as NETCOM
          and other future acquisitions become integrated within ICG's
          business, the Company and ICG will be providing to each other
          certain services, such as accounting, legal, operations, network
          and general corporate services as needs arise. All such services
          will be priced and consideration paid on an arm's length basis in
          accordance with the terms of the ICG Indentures.

                           SOLE STOCKHOLDER OF THE COMPANY

               ICG owns all of the outstanding shares of common stock, $.01
          par value per share, of the Company. The principal executive
          offices of ICG are located at 161 Inverness Drive West,
          Englewood, Colorado 80112.


                                      -50-
     <PAGE>

                                  THE EXCHANGE OFFER

          PURPOSE AND EFFECT OF THE EXCHANGE OFFER

               The Old Notes were sold by Morgan Stanley & Co. Incorporated
          (the "Placement Agent") on February 12, 1998 to a limited number
          of institutional investors (the "Purchasers"). In connection with
          the sale of the Old Notes, the Company and the Placement Agent
          entered into a registration rights agreement dated February 12,
          1998 (the "Registration Rights Agreement"), which requires, among
          other things, the Company (i) to cause the Old Notes to be
          registered under the Securities Act or (ii) to use its best
          efforts to cause to be filed with the Commission a registration
          statement under the Securities Act with respect to New Notes
          identical in all material respects to the Old Notes and have such
          registration statement declared effective under the Securities
          Act and remain effective until the closing of the Exchange Offer.
          The Company is further obligated, upon the effectiveness of that
          registration statement, to offer the holders of the Old Notes the
          opportunity to exchange their Old Notes for a like principal
          amount of New Notes which will be issued without a restrictive
          legend and may be reoffered and resold by the holder without
          restrictions or limitations under the Securities Act. A copy of
          the Registration Rights Agreement has been filed as an exhibit to
          the Registration Statement of which this Prospectus is a part.
          The Exchange Offer is being made pursuant to the Registration
          Rights Agreement to satisfy the Company's obligations thereunder.
          The term "Holder" with respect to the Exchange Offer means any
          person in whose name Old Notes are registered on the Company's
          books or any other person who has obtained a properly completed
          assignment from the registered holder.

               In order to participate in the Exchange Offer, a Holder must
          represent to the Company, among other things, that (i) the New
          Notes acquired pursuant to the Exchange Offer are being obtained
          in the ordinary course of business of the person receiving such
          New Notes, whether or not such person is the Holder, (ii) neither
          the Holder nor any such other person is engaging in or intends to
          engage in a distribution of such New Notes, (iii) neither the
          Holder nor any such other person has an arrangement or
          understanding with any person to participate in the distribution
          of such New Notes, and (iv) neither the Holder nor any such other
          person is an "affiliate," as defined under Rule 405 promulgated
          under the Securities Act, of the Company.

               Based on a previous interpretation by the staff of the
          Commission set forth in no-action letters issued to third-
          parties, including "Exxon Capital Holdings Corporation"
          (available May 13, 1988), "Morgan Stanley & Co. Incorporated"
          (available June 5, 1991), "Mary Kay Cosmetics, Inc." (available
          June 5, 1991), "Warnaco, Inc." (available October 11, 1991) and
          "K-III Communications Corp." (available May 14, 1993), the
          Company believes that the New Notes issued pursuant to the
          Exchange Offer may be offered for resale, resold and otherwise
          transferred by any Holder of such New Notes (other than any such
          Holder which is an "affiliate" of the Company within the meaning
          of Rule 405 under the Securities Act) without compliance with the
          registration and prospectus delivery provisions of the Securities
          Act, provided that such New Notes are acquired in the ordinary
          course of such Holder's business and such Holder has no
          arrangement or understanding with any person to participate in
          the distribution of such New Notes. Any Holder who tenders in the
          Exchange Offer for the purpose of participating in a distribution
          of the New Notes cannot rely on such interpretation by the staff
          of the Commission and must comply with the registration and
          prospectus delivery requirements of the Securities Act in
          connection with a secondary resale transaction. Under no
          circumstances may this Prospectus be used for an offer to resell,
          resale or other retransfer of the New Notes. In the event that
          the Company's belief is inaccurate, Holders of the New Notes who
          transfer New Notes in violation of the prospectus delivery
          provisions of the Securities Act and without an exemption from
          registration thereunder may incur liability thereunder.  The
          Company does not assume or indemnify Holders against such
          liability. The Exchange Offer is not being made to, nor will the
          Company accept surrenders for exchange from, Holders of Old Notes
          in any jurisdiction in which the Exchange Offer or the acceptance
          thereof would not be in compliance with the securities or blue
          sky laws of such jurisdiction. Each broker-dealer that receives
          New Notes for its own account in exchange for Old Notes, where
          such Old Notes were acquired by such broker-dealer as a result of
          market-making activities or other trading activities, must
          acknowledge that it will deliver a prospectus in connection with
          any resale of such New Notes.  The Company has not entered into
          any arrangement or understanding with any person to distribute
          the New Notes to be received in the Exchange Offer. See "Plan of
          Distribution."


                                      -51-
      <PAGE>


          TERMS OF THE EXCHANGE OFFER

               Upon the terms and subject to the conditions set forth in
          this Prospectus and in the Letters of Transmittal, the Company
          will accept any and all Old Notes validly tendered and not
          withdrawn prior to 5:00 p.m., New York City time, on the
          Expiration Date. The Company will issue $1,000 principal amount
          of New Notes in exchange for each $1,000 principal amount of
          outstanding Old Notes surrendered pursuant to the Exchange Offer. 
          However, Old Notes may be tendered only in integral multiples of
          $1,000.

               The form and terms of the New Notes will be the same as the
          form and terms of the Old Notes except that the New Notes will be
          registered under the Securities Act and hence will not bear
          legends restricting the transfer thereof. The New Notes will
          evidence the same debt as the Old Notes. The New Notes will be
          issued under and entitled to the benefits of the Indenture, which
          also authorized the issuance of the Old Notes, such that both
          series will be treated as a single class of debt securities under
          the Indenture. 

               As of the date of this Prospectus, $490,000,000 aggregate
          principal amount at maturity of the Old Notes is outstanding.
          This Prospectus, together with the Letter of Transmittal, is
          being sent to all registered Holders of the Old Notes.

               The Company intends to conduct the Exchange Offer in
          accordance with the provisions of the Registration Rights
          Agreement and the applicable requirements of the Exchange Act,
          and the rules and regulations of the Commission thereunder. Old
          Notes that are not tendered for exchange in the Exchange Offer
          will remain outstanding and will be entitled to the rights and
          benefits such Holders have under the Indenture. 

               The Company shall be deemed to have accepted validly
          tendered Old Notes when, as and if the Company shall have given
          oral or written notice thereof to the Exchange Agent.  The
          Exchange Agent will act as agent for the tendering Holders for
          the purposes of receiving the New Notes from the Company.

               If any tendered Old Notes are not accepted for exchange
          because of an invalid tender, the occurrence of certain other
          events set forth herein or otherwise, certificates for any such
          unaccepted Old Notes will be returned, without expense, to the
          tendering Holder thereof as promptly as practicable after the
          Expiration Date.

               Holders who tender Old Notes in the Exchange Offer will not
          be required to pay brokerage commissions or fees or, subject to
          the instructions in the Letter of Transmittal, transfer taxes
          with respect to the exchange pursuant to the Exchange Offer. The
          Company will pay all charges and expenses, other than certain
          applicable taxes described below, in connection with the Exchange
          Offer. See "-- Fees and Expenses."

          EXPIRATION DATE; EXTENSIONS; AMENDMENTS

               The term "Expiration Date," shall mean 5:00 p.m., New York
          City time on           , 1998, unless the Company, in its sole 
                       ----------
          discretion, extends the Exchange Offer, in which case the term
          "Expiration Date" shall mean the latest date and time to which
          the Exchange Offer is extended.

               In order to extend the Exchange Offer, the Company will
          notify the Exchange Agent of any extension by oral or written
          notice and will mail to the registered Holders an announcement
          thereof, prior to 9:00 a.m., New York City time, on the next
          business day after the then Expiration Date.

               The Company reserves the right, in its sole discretion, (i)
          to delay accepting any Old Notes, to extend the Exchange Offer or
          to terminate the Exchange Offer if any of the conditions set
          forth below under "--Conditions" shall not have been satisfied by
          giving oral or written notice of such delay, extension or
          termination to the Exchange Agent or (ii) to amend the terms of
          the Exchange Offer in any manner.  Any such delay in acceptances,
          extension, termination or amendment will be followed as promptly
          as practicable by oral or written notice thereof to the


                                     -52-
     <PAGE>


          registered Holders. If the Exchange Offer is amended in a manner
          determined by the Company to constitute a material change, the
          Company will promptly disclose such amendment by means of a
          prospectus supplement that will be distributed to the registered
          Holders, and the Company will extend the Exchange Offer for a
          period of five to ten business days, depending upon the
          significance of the amendment and the manner of disclosure to the
          registered Holders, if the Exchange Offer would otherwise expire
          during such five to ten business day period.

               Without limiting the manner in which the Company may choose
          to make a public announcement of any delay, extension, amendment
          or termination of the Exchange Offer, the Company shall have no
          obligation to publish, advertise, or otherwise communicate any
          such public announcement, other than by making a timely release
          to an appropriate news agency.

               Upon satisfaction or waiver of all the conditions to the
          Exchange Offer, the Company will accept, promptly after the
          Expiration Date, all Old Notes properly tendered and will issue
          the New Notes promptly after acceptance of the Old Notes.  See "-
          - Conditions." For purposes of the Exchange Offer, the Company
          shall be deemed to have accepted properly tendered Old Notes for
          exchange when, as and if the Company shall have given oral or
          written notice thereof to the Exchange Agent.

               In all cases, issuance of the New Notes for Old Notes that
          are accepted for exchange pursuant to the Exchange Offer will be
          made only after timely receipt by the Exchange Agent of a
          properly completed and duly executed Letter of Transmittal and
          all other required documents; provided, however, that the Company
          reserves the absolute right to waive any defects or
          irregularities in the tender or conditions of the Exchange Offer.
          If any tendered Old Notes are not accepted for any reason set
          forth in the terms and conditions of the Exchange Offer or if Old
          Notes are submitted for a greater principal amount, or a greater
          number of shares, respectively, than the Holder desires to
          exchange, then such unaccepted or non-exchanged Old Notes
          evidencing the unaccepted portion, as appropriate, will be
          returned without expense to the tendering Holder thereof as
          promptly as practicable after the expiration or termination of
          the Exchange Offer.

          CONDITIONS

               Notwithstanding any other term of the Exchange Offer, the
          Company will not be required to exchange any New Notes for any
          Old Notes and may terminate the Exchange Offer before the
          acceptance of any Old Notes for exchange, if:

                    (a)  any action or proceeding is instituted or
          threatened in any court or by or before any governmental agency
          with respect to the Exchange Offer which, in the Company's
          reasonable judgment, might materially impair the ability of the
          Company to proceed with the Exchange Offer; or

                    (b)  any law, statute, rule or regulation is proposed,
          adopted or enacted, or any existing law, statute, rule or
          regulation is interpreted by the staff of the Commission, which,
          in the Company's reasonable judgment, might materially impair the
          ability of the Company to proceed with the Exchange Offer; or

                    (c)  any governmental approval or approval by Holders
          of the Old Notes has not been obtained, which approval the
          Company shall, in its reasonable judgment, deem necessary for the
          consummation of the Exchange Offer as contemplated hereby.

               If the Company determines in its sole discretion that any of
          these conditions are not satisfied, the Company may (i) refuse to
          accept any Old Notes and return all tendered Old Notes to the
          tendering Holders, (ii) extend the Exchange Offer and retain all
          Old Notes tendered prior to the expiration of the Exchange Offer,
          subject, however, to the rights of Holders who tendered such Old
          Notes to withdraw their tendered Old Notes or (iii) waive such
          unsatisfied conditions with respect to the Exchange Offer and
          accept all properly tendered Old Notes which have not been


                                     -53-
     <PAGE>


          withdrawn. If such waiver constitutes a material change to the
          Exchange Offer, the Company will promptly disclose such waiver by
          means of a prospectus supplement that will be distributed to the
          registered Holders, and the Company will extend the Exchange
          Offer for a period of five to ten business days, depending upon
          the significance of the waiver and the manner of disclosure to
          the registered Holders, if the Exchange Offer would otherwise
          expire during such five to ten business day period.

          PROCEDURES FOR TENDERING

               To tender in the Exchange Offer, a Holder must complete,
          sign and date the Letter of Transmittal, or facsimile thereof,
          have the signatures thereon guaranteed if required by the Letter
          of Transmittal, and mail or otherwise deliver such Letter of
          Transmittal or such facsimile to the Exchange Agent prior to the
          Expiration Date.  In addition, either (i) certificates for such
          Old Notes must be received by the Exchange Agent along with the
          Letter of Transmittal, or (ii) a timely confirmation of
          book-entry transfer (a "Book-Entry Confirmation") of such Old
          Notes, if such procedure is available, into the Exchange Agent's
          account at the Depository Trust Company (the "Book-Entry Transfer
          Facility") pursuant to the procedure for book-entry transfer
          described below must be received by the Exchange Agent prior to
          the Expiration Date, or (iii) the Holder must comply with the
          guaranteed delivery procedures described below.  To be tendered
          effectively, the Letter of Transmittal and other required
          documents must be received by the Exchange Agent at the address
          set forth below under "--Exchange Agent" prior to the Expiration
          Date.

               The tender by a Holder which is not withdrawn prior to the
          Expiration Date will constitute an agreement between such Holder
          and the Company in accordance with the terms and subject to the
          conditions set forth herein and in the Letter of Transmittal.

               THE METHOD OF DELIVERY OF OLD NOTES AND THE LETTER OF
          TRANSMITTAL AND ALL OTHER REQUIRED DOCUMENTS TO THE EXCHANGE
          AGENT IS AT THE ELECTION AND RISK OF THE HOLDER. INSTEAD OF
          DELIVERY BY MAIL, IT IS RECOMMENDED THAT HOLDERS USE AN OVERNIGHT
          OR HAND DELIVERY SERVICE. IN ALL CASES, SUFFICIENT TIME SHOULD BE
          ALLOWED TO ASSURE DELIVERY TO THE EXCHANGE AGENT BEFORE THE
          EXPIRATION DATE. NO LETTER OF TRANSMITTAL OR OLD NOTES SHOULD BE
          SENT TO THE COMPANY. HOLDERS MAY REQUEST THEIR RESPECTIVE
          BROKERS, DEALERS, COMMERCIAL BANKS, TRUST COMPANIES OR NOMINEES
          TO EFFECT THE ABOVE TRANSACTIONS FOR SUCH HOLDERS.

               Any beneficial owner whose Old Notes are registered in the
          name of a broker, dealer, commercial bank, trust company or other
          nominee and who wishes to tender should contact the registered
          Holder promptly and instruct such registered Holder to tender on
          such beneficial owner's behalf. If such beneficial owner wishes
          to tender on such owner's own behalf, such owner must, prior to
          completing and executing the Letter of Transmittal and delivering
          such owner's Old Notes, either make appropriate arrangements to
          register ownership of the Old Notes in such owner's name or
          obtain a properly completed assignment from the registered
          Holder. The transfer of registered ownership may take
          considerable time.

               Signatures on a Letter of Transmittal or a notice of
          withdrawal, as the case may be, must be guaranteed by an Eligible
          Institution (as defined below) unless the Old Notes tendered
          pursuant thereto is tendered (i) by a registered Holder who has
          not completed the box entitled "Special Payment Instructions" or
          "Special Delivery Instructions" on the Letter of Transmittal or
          (ii) for the account of an Eligible Institution (as defined
          below).  In the event that signatures on a Letter of Transmittal
          or a notice of withdrawal, as the case may be, are required to be
          guaranteed, such guarantor must be a member firm of a registered
          national securities exchange or of the National Association of
          Securities Dealers, Inc., a commercial bank or trust company
          having an office or correspondent in the United States or an
          "eligible guarantor institution" within the meaning of Rule
          17Ad-15 under the Exchange Act (an "Eligible Institution").


                                      -54-
     <PAGE>

               If the Letter of Transmittal is signed by a person other
          than the registered Holder of any Old Notes listed therein, such
          Old Notes must be endorsed or accompanied by a properly completed
          bond power signed by such registered Holder as such registered
          Holder's name appears on such Old Notes.

               If the Letter of Transmittal or any Old Notes or bond or
          stock powers are signed by trustees, executors, administrators,
          guardians, attorneys-in-fact, officers of corporations or others
          acting in a fiduciary or representative capacity, such persons
          should so indicate when signing, and unless waived by the
          Company, evidence satisfactory to the Company of their authority
          to so act must be submitted with the Letter of Transmittal.

               All questions as to the validity, form, eligibility
          (including time of receipt), acceptance of tendered Old Notes and
          withdrawal of tendered Old Notes will be determined by the
          Company in its sole discretion, which determination will be final
          and binding. The Company reserves the absolute right to reject
          any and all Old Notes not properly tendered or any Old Notes the
          Company's acceptance of which would, in the opinion of counsel
          for the Company, be unlawful. The Company also reserves the right
          to waive any defects, irregularities or conditions of tender as
          to particular Old Notes.  The Company's interpretation of the
          terms and conditions of the Exchange Offer (including the
          instructions in the Letter of Transmittal) will be final and
          binding on all parties.  Unless waived, any defects or
          irregularities in connection with tenders of Old Notes must be
          cured within such time as the Company shall determine. Although
          the Company intends to notify Holders of defects or
          irregularities with respect to tenders of Old Notes, none of the
          Company, the Exchange Agent, or any other person shall incur any
          liability for failure to give such notification.  Tenders of Old
          Notes will not be deemed to have been made until such defects or
          irregularities have been cured or waived.  Any Old Notes received
          by the Exchange Agent that are not properly tendered and as to
          which the defects or irregularities have not been cured or waived
          will be returned by the Exchange Agent to the tendering Holders,
          unless otherwise provided in the Letter of Transmittal, as soon
          as practicable following the Expiration Date.

               In addition, the Company reserves the right in its sole
          discretion to purchase or make offers for any Old Notes that
          remain outstanding subsequent to the Expiration Date or, as set
          forth above under "--Conditions," to terminate the Exchange Offer
          and, to the extent permitted by applicable law, purchase Old
          Notes in the open market, in privately negotiated transactions or
          otherwise. The terms of any such purchases or offers could differ
          from the terms of the Exchange Offer.

               By tendering, each Holder will represent to the Company
          that, among other things, (i) the New Notes acquired pursuant to
          the Exchange Offer is being obtained in the ordinary course of
          business of the Person receiving such New Notes, whether or not
          such person is the Holder, (ii) neither the Holder nor any such
          other person is engaging in or intends to engage in a
          distribution of such New Notes, (iii) neither the Holder nor any
          such other person has an arrangement or understanding with any
          Person to participate in the distribution of such New Notes, and
          (iv) neither the Holder nor any such other Person is an
          "affiliate," as defined in Rule 405 of the Securities Act, of the
          Company.

               In all cases, issuance of New Notes that are accepted for
          exchange pursuant to the Exchange Offer will be made only after
          timely receipt by the Exchange Agent of certificates for such Old
          Notes or a timely Book-Entry Confirmation of such Old Notes into
          the Exchange Agent's account at the Book-Entry Transfer Facility,
          a properly completed and duly executed Letter of Transmittal and
          all other required documents. If any tendered Old Notes are not
          accepted for any reason set forth in the terms and conditions of
          the Exchange Offer or if Old Notes are submitted for a greater
          principal amount than the Holder desires to exchange, such
          unaccepted or non-exchanged Old Notes will be returned without
          expense to the tendering Holder thereof (or, in the case of Old
          Notes tendered by book-entry transfer into the Exchange Agent's
          account at the Book-Entry Transfer Facility pursuant to the
          book-entry transfer procedures described below, such
          non-exchanged Old Notes will be credited to an account maintained
          with such Book-Entry Transfer Facility) as promptly as
          practicable after the expiration or termination of the Exchange
          Offer.


                                       -55-
     <PAGE>


          BOOK-ENTRY TRANSFER

               The Exchange Agent each will make a request to establish an
          account with respect to the Old Notes at the Book-Entry Transfer
          Facility for purposes of the Exchange Offer within two business
          days after the date of this Prospectus, and any financial
          institution that is a participant in the Book-Entry Transfer
          Facility's systems may make book-entry delivery of Old Notes by
          causing the Book-Entry Transfer to transfer such Old Notes into
          the Exchange Agent's account at the Book-Entry Transfer Facility
          in accordance with such Book-Entry Transfer Facility's procedures
          for transfer. However, although delivery of Old Notes may be
          effected through book-entry transfer at the Book-Entry Transfer
          Facility, the Letter of Transmittal or facsimile thereof, with
          any required signature guarantees and any other required
          documents, must, in any case, be transmitted to and received by
          the Exchange Agent at the address set forth below under "--
          Exchange Agent" on or prior to the Expiration Date or the
          guaranteed delivery procedures described below must be complied
          with.

          GUARANTEED DELIVERY PROCEDURES

               Holders who wish to tender their Old Notes and (i) whose Old
          Notes are not immediately available or (ii) who cannot deliver
          their Old Notes, the Letter of Transmittal or any other required
          documents to the Exchange Agent prior to the Expiration Date, may
          effect a tender if:

                    (a)  The tender is made through an Eligible
          Institution;

                    (b)  Prior to the Expiration Date, the Exchange Agent
          receives from such Eligible Institution a properly completed and
          duly executed Notice of Guaranteed Delivery (by facsimile
          transmission, mail or hand delivery) setting forth the name and
          address of the Holder, the certificate number(s) of such Old
          Notes and the principal amount of Old Notes tendered stating that
          the tender is being made thereby and guaranteeing that, within
          five New York Stock Exchange trading days after the Expiration
          Date, the Letter of Transmittal (or facsimile thereof) together
          with the certificate(s) representing the Old Notes and any other
          documents required by the Letter of Transmittal will be deposited
          by the Eligible Institution with the Exchange Agent; and 

                    (c)  Such properly completed and executed Letter of
          Transmittal (or facsimile thereof), as well as the certificate(s)
          representing all tendered Old Notes in proper form for transfer
          and other documents required by the Letter of Transmittal are
          received by the Exchange Agent within five New York Stock
          Exchange trading days after the Expiration Date.

               Upon request to the Exchange Agent a Notice of Guaranteed
          Delivery will be sent to Holders who wish to tender their Old
          Notes according to the guaranteed delivery procedures set forth
          above.

          WITHDRAWAL OF TENDERS

               Except as otherwise provided herein, tenders of Old Notes
          may be withdrawn at any time prior to 5:00 p.m., New York City
          time, on the Expiration Date.

               To withdraw a tender of Old Notes in the Exchange Offer, a
          written or facsimile transmission notice of withdrawal must be
          received by the Exchange Agent at its address set forth herein
          prior to 5:00 p.m., New York City time, on the Expiration Date.
          Any such notice of withdrawal must (i) specify the name of the
          person having deposited the Old Notes to be withdrawn (the
          "Depositor"), (ii) identify the Old Notes to be withdrawn
          (including the certificate number or), (iii) be signed by the
          Holder in the same manner as the original signature on the Letter
          of Transmittal by which such Old Notes were tendered (including
          any required signature guarantees) or be accompanied by documents
          of transfer sufficient to have the Trustee with respect to the
          Old Notes register the transfer of such Old Notes in the name of
          the person withdrawing the tender and (iv) specify the name in
          which any such Old Notes are to be registered, if different from
          that of the Depositor. All questions as to the validity, form and


                                    -56-
     <PAGE>


          eligibility (including time of receipt) of such notices will be
          determined by the Company, whose determination shall be final and
          binding on all parties. Any Old Notes so withdrawn will be deemed
          not to have been validly tendered for purposes of the Exchange
          Offer and no New Notes will be issued with respect thereto unless
          the Old Notes so withdrawn are validly retendered. Any Old Notes
          which have been tendered but which are not accepted for payment
          will be returned to the Holder thereof without cost to such
          Holder as soon as practicable after withdrawal, rejection of
          tender or termination of the Exchange Offer. Properly withdrawn
          Old Notes may be retendered by following one of the procedures
          described above under "-- Procedures for Tendering" at any time
          prior to the Expiration Date.

          EXCHANGE AGENT

               Norwest Banks has been appointed as Exchange Agent of the
          Exchange Offer. Questions and requests for assistance, requests
          for additional copies of this Prospectus or of the Letter of
          Transmittal and requests for Notice of Guaranteed Delivery with
          respect to the exchange of the Old Notes should be directed to
          the Exchange Agent addressed as follows:

           By Registered Mail or Certified     By Overnight Courier:
           Mail:

           Norwest Banks                       Norwest Banks
           Corporate Trust Section             Corporate Trust Section
           P.O. Box 1517                       NorthStar East Building
           Minneapolis, MN  55480-1517         Sixth and Marquette
                                               Avenues
                                               Minneapolis, MN  55479-
                                               0113

           By Telephone:                       By Facsimile:

           (612) 667-4070                      (612) 667-4972

          FEES AND EXPENSES

               The expenses of soliciting tenders will be paid by the
          Company. The principal solicitation is being made by mail;
          however, additional solicitation may be made by telecopier,
          telephone or in person by officers and regular employees of the
          Company and its affiliates.

               The Company has not retained any dealer-manager in
          connection with the Exchange Offer and will not make any payments
          to brokers-dealers or others soliciting acceptances of the
          Exchange Offer. The Company, however, will pay the Exchange Agent
          reasonable and customary fees for their services and will
          reimburse them for their reasonable out-of-pocket expenses in
          connection therewith.

               The cash expenses to be incurred in connection with the
          Exchange Offer will be paid by the Company and are estimated in
          the aggregate to be approximately $100,000. Such expenses include
          registration fees, fees and expenses of the Exchange Agent
          accounting and legal fees and printing costs, among others.

               The Company will pay all transfer taxes, if any, applicable
          to the exchange of the Old Notes pursuant to the Exchange Offer.
          If, however, certificates representing New Notes for principal
          amounts or number of shares not tendered or accepted for exchange
          are to be delivered to, or are to be issued in the name of, any
          person other than the registered Holder of Old Notes tendered, or
          if tendered the Old Notes are registered in the name of, any
          person other than the person signing the Letter of Transmittal,
          or if a transfer tax is imposed for any reason other than the
          exchange of the Old Notes pursuant to the Exchange Offer, then
          the amount of any such transfer taxes (whether imposed on the
          registered Holder or any other persons) will be payable by the
          tendering Holder. If satisfactory evidence of payment of such
          taxes or exemption therefrom is not submitted with the Letter of
          Transmittal, the amount of such transfer taxes will be billed
          directly to such tendering Holder.


                                      -57-
     <PAGE>


                             DESCRIPTION OF THE NEW NOTES

               The New Notes are to be issued under an Indenture, dated as
          of February 12, 1998 (the "Indenture"), between the Company, as
          issuer, and Norwest Bank Colorado, National Association, as
          trustee (the "Trustee"). A copy of the Indenture is available
          upon request from the Company.  The following summary of certain
          provisions of the Indenture does not purport to be complete and
          is subject to, and is qualified in its entirety by reference to,
          all the provisions of the Indenture, including the definitions of
          certain terms therein and those terms made a part thereof by the
          Trust Indenture Act of 1939, as amended (the "Trust Indenture
          Act"). Whenever particular defined terms of the Indenture not
          otherwise defined herein are referred to, such defined terms are
          incorporated herein by reference.  For definitions of certain
          capitalized terms used in the following summary, see "-- Certain
          Definitions."

          GENERAL

               The New Notes will be senior, unsecured obligations of the
          Company, initially limited to $490,000,000 aggregate principal
          amount at maturity, and will mature on February 15, 2008.
          Although for federal income tax purposes, a significant amount of
          original issue discount, taxable as ordinary income, will be
          recognized by a Holder as such discount accrues from the issue
          date of the New Notes, no interest will be payable on the New
          Notes prior to August 15, 2003. From and after February 15, 2003,
          interest will accrue at the rate of 10% per annum from February
          15, 2003, or from the most recent Interest Payment Date to which
          interest has been paid or provided for, payable semiannually (to
          Holders of record at the close of business on the February 1 or
          August 1 immediately preceding the Interest Payment Date) on
          February 15 and August 15 of each year, commencing August 15,
          2003.

               Principal of, premium, if any, and interest on the New Notes
          will be payable, and the New Notes may be exchanged or
          transferred, at the office or agency of the Company (which
          initially will be the corporate trust office of the Trustee at
          1740 Broadway, Denver, Colorado), or at the option of the
          Company, payment of interest may be made by check mailed to the
          Holders at their addresses as they appear in the Security
          Register; provided that all payments of principal, premium, if
          any, and interest with respect to New Notes represented by one or
          more permanent global New Notes registered in the name of or held
          by DTC or its nominee will be made by wire transfer of
          immediately available funds to the accounts specified by the
          Holder or Holders thereof.

               The New Notes will be issued only in fully registered form,
          without coupons, in denominations of $1,000 of principal amount
          at maturity and any integral multiple thereof. See "-- Book
          Entry; Delivery and Form." No service charge will be made for any
          registration of transfer or exchange of New Notes, but the
          Company may require payment of a sum sufficient to cover any
          transfer tax or other similar governmental charge payable in
          connection therewith.

               Subject to the covenants described below under "Covenants"
          and applicable law, the Company may issue additional New Notes
          under the Indenture. The New Notes offered hereby and any
          additional New Notes subsequently issued would be treated as a
          single class for all purposes under the Indenture.

          OPTIONAL REDEMPTION

               The New Notes will be redeemable, at the Company's option,
          in whole or in part, at any time or from time to time, on or
          after February 15, 2003 and prior to maturity, upon not less than
          30 nor more than 60 days' prior notice mailed by first class mail
          to each Holder's last address as it appears in the Security
          Register, at the following prices (the "Redemption Prices")
          (expressed in percentages of principal amount at maturity), plus
          accrued and unpaid interest, if any, to the Redemption Date
          (subject to the right of Holders of record on the relevant
          Regular Record Date that is on or prior to the Redemption Date to
          receive interest due on an Interest Payment Date), if redeemed
          during the 12-month period commencing February 15, of the years
          set forth below:


                                     -58-
     <PAGE>

                  YEAR                                         REDEMPTION
           ------------------                                    PRICE 
                                                               ----------
           2003  . . . . . . . . . . . . . . . . . . . . . .    105.0000%
           2004  . . . . . . . . . . . . . . . . . . . . . .    103.3333
           2005  . . . . . . . . . . . . . . . . . . . . . .    101.6667
           2006 and thereafter . . . . . . . . . . . . . . .    100.0000

               In addition, at any time or from time to time, on or prior
          to February 15, 2001, the Company may, at its option, redeem New
          Notes having an aggregate principal amount at maturity of up to
          35% of the aggregate principal amount at maturity of the Notes
          with the proceeds of one or more public or private Equity
          Offerings, at a Redemption Price equal to 110.0% of Accreted
          Value on the Redemption Date; provided that at least 65% of the
          aggregate principal amount of New Notes initially issued remains
          outstanding after each such redemption.

               In the case of any partial redemption, selection of the New
          Notes for redemption will be made by the Trustee in compliance
          with the requirements of the principal national securities
          exchange, if any, on which the New Notes are listed or, if the
          New Notes are not listed on a national securities exchange, by
          lot or by such other method as the Trustee in its sole discretion
          shall deem to be fair and appropriate; provided that no New Note
          of $1,000 in principal amount at maturity or less shall be
          redeemed in part. If any New Note is to be redeemed in part only,
          the notice of redemption relating to such New Note shall state
          the portion of the principal amount thereof to be redeemed. A new
          New Note in principal amount equal to the unredeemed portion
          thereof will be issued in the name of the Holder thereof upon
          cancellation of the original New Note.

          RANKING

               The New Notes will be senior, unsecured obligations of the
          Company, will rank pari passu in right of payment with all
          existing and future unsecured, unsubordinated indebtedness and
          will be senior in right of payment to all existing and future
          subordinated indebtedness of the Company. At December 31, 1997,
          after giving pro forma effect to the Private Offering and the
          NETCOM acquisition, the Company would have had, on a consolidated
          basis, approximately $306.6 million of indebtedness including
          capitalized lease obligations. The Company is a holding company
          and the New Notes will be effectively subordinated to all
          liabilities (including trade payables) of the subsidiaries of the
          Company, and at December 31, 1997, on the same pro forma basis,
          the subsidiaries of the Company would have had approximately $-
          34.5 million of liabilities (excluding intercompany payables)
          including approximately $6.0 million of indebtedness, consisting
          solely of capitalized lease obligations. The Company may incur
          substantial amounts of indebtedness in the future. See "Risk
          Factors -- Substantial Indebtedness; Ability to Service Debt" and
          "-- Holding Company Structure; Priority of Creditors."

          CERTAIN DEFINITIONS

               Set forth below is a summary of certain of the defined terms
          used in the covenants and other provisions of the Indenture.
          Reference is made to the Indenture for the definition of any
          other capitalized term used herein for which no definition is
          provided.

               "Accreted Value" is defined to mean, for any Specified Date,
          the amount calculated pursuant to (i), (ii), (iii) or (iv) for
          each $1,000 principal amount at maturity of New Notes:

                    (i) if the Specified Date occurs on one of the
               following dates (each a "Semi-Annual Accrual Date"), the
               Accreted Value will equal the amount set forth below for
               such Semi-Annual Accrual Date:


                SEMI-ANNUAL                                     ACCRETED
                ACCRUAL DATE                                     VALUE
                ------------                                    --------
             August 15, 1998                                    $644.60
             February 15, 1999                                  $676.83
             August 15, 1999                                    $710.68
             February 15, 2000                                  $746.21


                                    -59-
     <PAGE>


             August 15, 2000                                    $783.52
             February 15, 2001                                  $822.70
             August 15, 2001                                    $863.83
             February 15, 2002                                  $907.02
             August 15, 2002                                    $952.38
             February 15, 2003                                  $
                                                               1,000.00

                    (ii) if the Specified Date occurs before the first
               Semi-Annual Accrual Date, the Accreted Value will equal the
               sum of (a) the original issue price and (b) an amount equal
               to the product of (1) the Accreted Value for the first Semi-
               Annual Accrual Date less the original issue price multiplied
               by (2) a fraction, the numerator of which is the number of
               days from the issue date of the New Notes to the Specified
               Date, using a 360-day year of twelve 30-day months, and the
               denominator of which is the number of days elapsed from the
               issue date of the Notes to the first Semi-Annual Accrual
               Date, using a 360-day year of twelve 30-day months;

                    (iii) if the Specified Date occurs between two Semi-
               Annual Accrual Dates, the Accreted Value will equal the sum
               of (a) the Accreted Value for the Semi-Annual Accrual Date
               immediately preceding such Specified Date and (b) an amount
               equal to the product of (1) the Accreted Value for the
               immediately following Semi-Annual Accrual Date less the
               Accreted Value for the immediately preceding Semi-Annual
               Accrual Date multiplied by (2) a fraction, the numerator of
               which is the number of days from the immediately preceding
               Semi-Annual Accrual Date to the Specified Date, using a 360-
               day year of twelve 30-day months, and the denominator of
               which is 180; or

                    (iv) if the Specified Date occurs after the last Semi-
               Annual Accrual Date, the Accreted Value will equal $1,000.

               "Acquired Indebtedness" means Indebtedness of a Person
          existing at the time such Person becomes a Restricted Subsidiary
          or assumed in connection with an Asset Acquisition by a
          Restricted Subsidiary and not Incurred in connection with, or in
          anticipation of, such Person becoming a Restricted Subsidiary or
          such Asset Acquisition.

               "Adjusted Consolidated Net Income" means, for any period,
          the aggregate net income (or loss) of the Company and its
          Restricted Subsidiaries for such period determined in conformity
          with GAAP; provided that the following items shall be excluded in
          computing Adjusted Consolidated Net Income (without duplication):
          (i) the net income (or loss) of any Person that is not a
          Restricted Subsidiary (or is an Unrestricted Subsidiary), except
          to the extent of the amount of dividends or other distributions
          actually paid to the Company or any of its Restricted
          Subsidiaries by such Person or an Unrestricted Subsidiary during
          such period; (ii) solely for the purposes of calculating the
          amount of Restricted Payments that may be made pursuant to clause
          (C) of the first paragraph of the "Limitation on Restricted
          Payments" covenant described below (and in such case, except to
          the extent includible pursuant to clause (i) above), the net
          income (or loss) of any Person accrued prior to the date it
          becomes a Restricted Subsidiary or is merged into or consolidated
          with the Company or any of its Restricted Subsidiaries or all or
          substantially all of the property and assets of such Person are
          acquired by the Company or any of its Restricted Subsidiaries;
          (iii) the net income of any Restricted Subsidiary to the extent
          that the declaration or payment of dividends or similar
          distributions by such Restricted Subsidiary of such net income is
          not at the time permitted by the operation of the terms of its
          charter or any agreement, instrument, judgment, decree, order,
          statute, rule or governmental regulation applicable to such
          Restricted Subsidiary (except to the extent such restriction has
          been legally waived); (iv) any gains or losses (on an after-tax
          basis) attributable to Asset Sales or the termination of
          discontinued operations; (v) except for purposes of calculating
          the amount of Restricted Payments that may be made pursuant to
          clause (C) of the first paragraph of the "Limitation on
          Restricted Payments" covenant described below, any amount paid or
          accrued as dividends on preferred stock of the Company or any
          Restricted Subsidiary owned by Persons other than the Company and
          any of its Restricted Subsidiaries; (vi) all extraordinary gains
          and extraordinary losses; and (vii) at the irrevocable election
          of the Company for each occurrence, any net after-tax income
          (loss) from discontinued operations; provided that for purposes
          of any subsequent Investment in the entity conducting such


                                     -60-
     <PAGE>


          discontinued operations under the "Restricted Payments" covenant,
          such entity shall be treated as an Unrestricted Subsidiary until
          such discontinued operations have actually been disposed of.

               "Adjusted Consolidated Net Tangible Assets" means the total
          amount of assets of the Company and its Restricted Subsidiaries
          (less applicable depreciation, amortization and other valuation
          reserves), except to the extent resulting from write-ups of
          capital assets (excluding write-ups in connection with accounting
          for acquisitions in conformity with GAAP), after deducting
          therefrom (i) all current liabilities of the Company and its
          Restricted Subsidiaries (excluding intercompany items) and (ii)
          all goodwill, trade names, trademarks, patents, unamortized debt
          discount and expense and other like intangibles, all as set forth
          on the most recent quarterly or annual consolidated balance sheet
          of the Company and its Restricted Subsidiaries, prepared in
          conformity with GAAP and filed with the Commission or provided to
          the Trustee pursuant to the "Commission Reports and Reports to
          Holders" covenant.

               "Affiliate" means, as applied to any Person, any other
          Person directly or indirectly controlling, controlled by, or
          under direct or indirect common control with, such Person. For
          purposes of this definition, "control" (including, with
          correlative meanings, the terms "controlling," "controlled by"
          and "under common control with"), as applied to any Person, means
          the possession, directly or indirectly, of the power to direct or
          cause the direction of the management and policies of such
          Person, whether through the ownership of voting securities, by
          contract or otherwise.

               "Asset Acquisition" means (i) an investment by the Company
          or any of its Restricted Subsidiaries in any other Person
          pursuant to which such Person shall become a Restricted
          Subsidiary or shall be merged into or consolidated with the
          Company or any of its Restricted Subsidiaries or (ii) an
          acquisition by the Company or any of its Restricted Subsidiaries
          of the property and assets of any Person other than the Company
          or any of its Restricted Subsidiaries that constitute
          substantially all of a division or line of business of such
          Person.

               "Asset Sale" means any sale, transfer or other disposition
          (including by way of merger, consolidation or sale-leaseback
          transaction) in one transaction or a series of related
          transactions by the Company or any of its Restricted Subsidiaries
          to any Person other than the Company or any of its Restricted
          Subsidiaries of (i) all or any of the Capital Stock of any
          Restricted Subsidiary, (ii) all or substantially all of the
          property and assets of an operating unit or business of the
          Company or any of its Restricted Subsidiaries or (iii) any other
          property and assets (other than the Capital Stock or other
          Investment in an Unrestricted Subsidiary) of the Company or any
          of its Restricted Subsidiaries outside the ordinary course of
          business of the Company or such Restricted Subsidiary and, in
          each case, that is not governed by the provisions of the
          Indenture applicable to mergers, consolidations and sales of all
          or substantially all of the assets of the Company; provided that
          "Asset Sale" shall not include (a) sales or other dispositions of
          inventory, receivables and other current assets, (b) sales or
          other dispositions of assets for consideration at least equal to
          the fair market value of the assets sold or disposed of, to the
          extent that the consideration received would constitute property
          or assets of the kind described in clause (B) of the "Limitation
          on Asset Sales" covenant, (c) a disposition of cash or Temporary
          Cash Investments, (d) any Restricted Payment that is permitted to
          be made, and is made, under the "Limitation on Restricted
          Payments" covenant, (e) sales or other dispositions of assets
          with a fair market value (as certified in an Officers'
          Certificate) not in excess of $2.0 million (provided that any
          series of related sales or dispositions in excess of $2.0 million
          shall be considered "Asset Sales"), (f) the lease, license,
          transfer of rights-of-use, assignment of a lease, license,
          transfer of rights-of-use or sublease or sublicense of any real
          or personal property in the ordinary course of business, (g)
          foreclosures on assets, (h) substantially simultaneous exchange
          by the Company or any Restricted Subsidiary of property or
          equipment for other property or equipment; provided that the
          property or equipment received by the Company or such Restricted
          Subsidiary has, at least substantially equal market value to the
          Company or such Restricted Subsidiary, (i) sales or other
          dispositions by the Company or any Restricted Subsidiary, from
          time to time, of up to 100% of the Southwest Communications
          Business to Central and South West Corporation or its affiliates
          or CSW/ICG ChoiceCom, L.P. and (j) transfer or other disposition
          by the Company or any Restricted Subsidiary of Capital Stock of
          any Restricted Subsidiary or an operating unit or business of the
          Company or any Restricted Subsidiary in exchange for an ownership


                                      -61-
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          interest in a joint venture whose primary business is related,
          ancillary or complementary to (A) the businesses of the Company
          and its Restricted Subsidiaries at the time of determination or
          (B) the Telecommunications Business; provided that the fair
          market value of such ownership interest is at least equal to the
          fair market value of such Capital Stock or operating unit or
          business transferred or disposed of (as determined by the Board
          of Directors, where good faith determination shall be conclusive
          and evidenced by a board resolution); and provided further that
          the assets or properties so transferred or disposed of pursuant
          to this clause (j) do not exceed 20% of Adjusted Consolidated Net
          Tangible Assets at the time of such transfer or disposition.

               "Average Life" means, at any date of determination with
          respect to any debt security, the quotient obtained by dividing
          (i) the sum of the products of (a) the number of years from such
          date of determination to the dates of each successive scheduled
          principal payment of such debt security and (b) the amount of
          such principal payment by (ii) the sum of all such principal
          payments.

               "Capital Stock" means, with respect to any Person, any and
          all shares, interests, participations or other equivalents
          (however designated, whether voting or non-voting) in equity of
          such Person, whether outstanding on the Closing Date or issued
          thereafter, including, without limitation, all Common Stock,
          Preferred Stock, partnership or membership interests and any
          other right to receive a share of the profits and losses of, or
          distributions of assets of, the issuing Person.

               "Capitalized Lease" means, as applied to any Person, any
          lease of any property (whether real, personal or mixed) of which
          the discounted present value of the rental obligations of such
          Person as lessee, in conformity with GAAP, is required to be
          capitalized on the balance sheet of such Person.

               "Capitalized Lease Obligations" means the amount of the
          liability in respect of a Capitalized Lease that would at such
          time be required to be capitalized and reflected as a liability
          on balance sheet prepared in accordance with GAAP.

               "Change of Control" means such time as (i) a "person" or
          "group" (within the meaning of Sections 13(d) and 14(d)(2) of the
          Exchange Act) becomes the ultimate "beneficial owner" (as defined
          in Rule 13d-3 under the Exchange Act) of (A) more than 40% of the
          total voting power of the Voting Stock of the Company on a fully
          diluted basis and (B) Voting Stock of the Company having a
          greater total voting power than the Voting Stock of the Company
          (on a fully diluted basis) beneficially owned by ICG or (ii)
          individuals who on the Closing Date constitute the Board of
          Directors (together with any new directors whose election by the
          Board of Directors or whose nomination by the Board of Directors
          for election by the Company's stockholders was approved by a vote
          of at least a majority of the members of the Board of Directors
          then in office who either were members of the Board of Directors
          on the Closing Date or whose election or nomination for election
          was previously so approved) cease for any reason to constitute a
          majority of the members of the Board of Directors then in office.

               "Closing Date" means the date on which the New Notes are
          originally issued under the Indenture.

               "Consolidated EBITDA" means, for any period, Adjusted
          Consolidated Net Income for such period plus, to the extent such
          amount was deducted in calculating such Adjusted Consolidated Net
          Income, (i) Consolidated Interest Expense, (ii) income taxes
          (other than income taxes (either positive or negative)
          attributable to extraordinary and non-recurring gains or losses
          or sales of assets), (iii) depreciation expense, (iv)
          amortization expense and (v) all other non-cash items reducing
          Adjusted Consolidated Net Income (other than items that will
          require cash payments and for which an accrual or reserve is, or
          is required by GAAP to be, made), less all non-cash items
          increasing (or, in the case of a loss, decreasing) Adjusted
          Consolidated Net Income, determined, with respect to clauses
          (ii), (iii) and (iv), on a consolidated basis for the Company and
          its Restricted Subsidiaries in conformity with GAAP; provided
          that, if any Restricted Subsidiary is not a Wholly Owned
          Restricted Subsidiary, Consolidated EBITDA shall be reduced (to
          the extent not otherwise reduced in accordance with GAAP) by an
          amount equal to (A) the amount of the Adjusted Consolidated Net


                                     -62-
      <PAGE>


          Income attributable to such Restricted Subsidiary multiplied by
          (B) the percentage ownership interest in the income of such
          Restricted Subsidiary not owned on the last day of such period by
          the Company or any of its Restricted Subsidiaries.

               "Consolidated Interest Expense" means, for any period, the
          aggregate amount (without duplication) of interest in respect of
          Indebtedness (including, without limitation, amortization of
          original issue discount on any Indebtedness and the interest
          portion of any deferred payment obligation, calculated in
          accordance with the effective interest method of accounting; all
          commissions, discounts and other fees and charges owed with
          respect to letters of credit and bankers' acceptance financing;
          the net costs associated with Interest Rate Agreements; and
          Indebtedness that is Guaranteed or secured by the Company or any
          of its Restricted Subsidiaries) and the interest component of
          Capitalized Lease Obligations paid, accrued or scheduled to be
          paid or to be accrued by the Company and its Restricted
          Subsidiaries during such period; excluding, however, (i) any
          amount of such interest of any Restricted Subsidiary if the net
          income of such Restricted Subsidiary is excluded in the
          calculation of Adjusted Consolidated Net Income pursuant to
          clause (iii) of the definition thereof (but only in the same
          proportion as the net income of such Restricted Subsidiary is
          excluded from the calculation of Adjusted Consolidated Net Income
          pursuant to clause (iii) of the definition thereof) and (ii) any
          premiums, fees and expenses (and any amortization thereof)
          payable in connection with the offering of the Notes, all as
          determined on a consolidated basis (without taking into account
          Unrestricted Subsidiaries) in conformity with GAAP.

               "Consolidated Leverage Ratio" means, on any Transaction
          Date, the ratio of (i) the aggregate amount of Indebtedness of
          the Company and its Restricted Subsidiaries on a consolidated
          basis outstanding on such Transaction Date to (ii) the aggregate
          amount of Consolidated EBITDA for the then most recent four
          fiscal quarters for which financial statements of the Company
          have been filed with the Commission or provided to the Trustee
          pursuant to the "Commission Reports and Reports to Holders"
          covenant described below (such four fiscal quarter period being
          the "Four Quarter Period"); provided that, in making the
          foregoing calculation, pro forma effect shall be given to the
          following events which occur from the beginning of the Four
          Quarter Period through the Transaction Date (the "Reference
          Period"): (i) the Incurrence of the Indebtedness with respect to
          which the computation is being made and (if applicable) the
          application of the net proceeds therefrom, including to refinance
          other Indebtedness, as if such Indebtedness was incurred, and the
          application of such proceeds occurred, at the beginning of the
          Four Quarter Period; (ii) the Incurrence, repayment or retirement
          of any other Indebtedness by the Company and its Restricted
          Subsidiaries since the first day of the Four Quarter Period as if
          such Indebtedness was incurred, repaid or retired at the
          beginning of the Four Quarter Period; (iii) in the case of
          Acquired Indebtedness, the related acquisition, as if such
          acquisition occurred at the beginning of the Four Quarter Period;
          (iv) any acquisition or disposition by the Company and its
          Restricted Subsidiaries of any company or any business or any
          assets out of the ordinary course of business, whether by merger,
          stock purchase or sale or asset purchase or sale or any related
          repayment of Indebtedness, in each case since the first day of
          the Four Quarter Period, assuming such acquisition or disposition
          had been consummated on the first day of the Four Quarter Period
          and after giving pro forma effect to net cost savings that the
          Company reasonably believes in good faith could have been
          achieved during the Four Quarter Period as a result of such
          acquisition or disposition (provided that both (A) such cost
          savings were identified and quantified in an Officers'
          Certificate delivered to the Trustee at the time of the
          consummation of the acquisition or disposition and (B) with
          respect to each acquisition or disposition completed prior to the
          90th day preceding such date of determination, actions were
          commenced or initiated by the Company within 90 days of such
          acquisition or disposition to effect such cost savings identified
          in such Officers' Certificate and with respect to any other
          acquisition or disposition, such Officers' Certificate sets forth
          the specific steps to be taken within the 90 days after such
          acquisition or disposition to accomplish such cost savings); and
          provided further that (x) in making such computation, the
          Consolidated Interest Expense attributable to interest on any
          Indebtedness computed on a pro forma basis and (A) bearing a
          floating interest rate shall be computed as if the rate in effect
          on the date of computation had been the applicable rate for the
          entire period and (B) which was not outstanding during the period
          for which the computation is being made but which bears, at the
          option of the Company, a fixed or floating rate of interest shall
          be computed by applying, at the option of the Company, either the
          fixed or floating rate, and (y) in making such computation, the


                                    -63-
     <PAGE>


          Consolidated Interest Expense of the Company attributable to
          interest on any Indebtedness under a revolving credit facility
          computed on a pro forma basis shall be computed based upon the
          pro forma average daily balance of such Indebtedness during the
          applicable period; and (v) the occurrence of any of the events
          described in clauses (i)-(iv) above by any Person that has become
          a Restricted Subsidiary or has been merged with or into the
          Company or any Restricted Subsidiary during such Reference
          Period.

               "Consolidated Net Worth" means, at any date of
          determination, stockholders' equity as set forth on the most
          recently available quarterly or annual consolidated balance sheet
          of the Company and its Restricted Subsidiaries (which shall be as
          of a date not more than 90 days prior to the date of such
          computation, and which shall not take into account Unrestricted
          Subsidiaries), less any amounts attributable to Disqualified
          Stock or any equity security convertible into or exchangeable for
          Indebtedness, the cost of treasury stock and the principal amount
          of any promissory notes receivable from the sale of the Capital
          Stock of the Company or any of its Restricted Subsidiaries, each
          item to be determined in conformity with GAAP (excluding the
          effects of foreign currency exchange adjustments under Financial
          Accounting Standards Board Statement of Financial Accounting
          Standards No. 52) .

               "Currency Agreement" means any foreign exchange contract,
          currency swap agreement or other similar agreement or
          arrangement.

               "Default" means any event that is, or after notice or
          passage of time or both would be, an Event of Default.

               "Disqualified Stock" means any class or series of Capital
          Stock of any Person that by its terms or otherwise is (i)
          required to be redeemed prior to the Stated Maturity of the New
          Notes, (ii) redeemable at the option of the holder of such class
          or series of Capital Stock at any time prior to the Stated
          Maturity of the New Notes or (iii) convertible into or
          exchangeable for Capital Stock referred to in clause (i) or (ii)
          above or Indebtedness having a scheduled maturity prior to the
          Stated Maturity of the New Notes; provided that any Capital Stock
          that would not constitute Disqualified Stock but for provisions
          thereof giving holders thereof the right to require such Person
          to repurchase or redeem such Capital Stock (or the security for
          which such Capital Stock is convertible into or exchangeable for)
          upon the occurrence of an "asset sale" or "change of control"
          occurring prior to the Stated Maturity of the New Notes shall not
          constitute Disqualified Stock if the "asset sale" or "change of
          control" provisions applicable to such Capital Stock (or the
          security for which such Capital Stock is convertible into or
          exchangeable for) are no more favorable to the holders of such
          Capital Stock (or the security for which such Capital Stock is
          convertible into or exchangeable for) than the provisions
          contained in "Limitation on Asset Sales" and "Repurchase of New
          Notes upon a Change of Control" covenants described below and
          such Capital Stock (or the security for which such Capital Stock
          is convertible into or exchangeable for) specifically provides
          that such Person will not repurchase or redeem any such stock
          pursuant to such provision prior to the Company's repurchase of
          such New Notes as are required to be repurchased pursuant to the
          "Limitation on Asset Sales" and "Repurchase of New Notes upon a
          Change of Control" covenants described below.

               "Equity Offering" means any public or private sale of
          Capital Stock of the Company (excluding Disqualified Stock),
          other than public offerings with respect to the Company's common
          stock registered on Form S-8.

               "fair market value" means the price that would be paid in an
          arm's length transaction between an informed and willing seller
          under no compulsion to sell and an informed and willing buyer
          under no compulsion to buy; fair market value may be determined
          in good faith by the Board of Directors of the Company, whose
          determination shall be conclusive if evidenced by a board
          resolution.

               "GAAP" means generally accepted accounting principles in the
          United States of America as in effect as of the Closing Date,
          including, without limitation, those set forth in the opinions
          and pronouncements of the Accounting Principles Board of the
          American Institute of Certified Public Accountants and statements
          and pronouncements of the Financial Accounting Standards Board or
          in such other statements by such other entity as approved by a


                                      -64-
     <PAGE>


          significant segment of the accounting profession. All ratios and
          computations contained or referred to in the Indenture shall be
          computed in conformity with GAAP applied on a consistent basis,
          except that calculations made for purposes of determining
          compliance with the terms of the covenants and with other
          provisions of the Indenture shall be made without giving effect
          to (i) the amortization of any expenses incurred in connection
          with the offering of the Notes and (ii) except as otherwise
          provided, the amortization of any amounts required or permitted
          by Accounting Principles Board Opinion Nos. 16 and 17.

               "Guarantee" means any obligation, contingent or otherwise,
          of any Person directly or indirectly guaranteeing any
          Indebtedness of any other Person and, without limiting the
          generality of the foregoing, any obligation, direct or indirect,
          contingent or otherwise, of such Person (i) to purchase or pay
          (or advance or supply funds for the purchase or payment of) such
          Indebtedness of such other Person (whether arising by virtue of
          partnership arrangements, or by agreements to keep-well, to
          purchase assets, goods, securities or services, to take-or-pay
          (unless such purchase arrangements or such obligations are on
          arm's length terms and are entered into in the ordinary course of
          business), or to maintain financial statement conditions or
          otherwise) or (ii) entered into for purposes of assuring in any
          other manner the obligee of such Indebtedness of the payment
          thereof or to protect such obligee against loss in respect
          thereof (in whole or in part); provided that the term "Guarantee"
          shall not include endorsements for collection or deposit in the
          ordinary course of business. The term "Guarantee" used as a verb
          has a corresponding meaning.

               "ICG" means ICG Communications, Inc., a Delaware
          corporation. 

               "ICG Common Stock" means common stock, par value $.01 per
          share, of ICG.

               "Incur" means, with respect to any Indebtedness, to incur,
          create, issue, assume, Guarantee or otherwise become liable for
          or with respect to, or become responsible for, the payment of,
          contingently or otherwise, such Indebtedness, including an
          "Incurrence" of Acquired Indebtedness; provided that neither the
          accrual of interest nor the accretion of original issue discount
          shall be considered an Incurrence of Indebtedness.

               "Indebtedness" means, with respect to any Person at any date
          of determination (without duplication), (i) all indebtedness of
          such Person for borrowed money, (ii) all obligations of such
          Person evidenced by bonds, debentures, notes or other similar
          instruments, (iii) all obligations of such Person in respect of
          letters of credit or other similar instruments (including
          reimbursement obligations with respect thereto, but excluding
          trade letters of credit), (iv) all obligations of such Person to
          pay the deferred and unpaid purchase price of property or
          services, which purchase price is due more than six months after
          the date of placing such property in service or taking delivery
          and title thereto or the completion of such services, except
          Trade Payables and accrued current liabilities arising in the
          ordinary course of business, (v) all Capitalized Lease
          Obligations of such Person, (vi) all Indebtedness referred to in
          clauses (i) through (v) hereof of other Persons secured by a Lien
          on any asset of such Person, whether or not such Indebtedness is
          assumed by such Person; provided that the amount of such
          Indebtedness shall be the lesser of (A) the fair market value of
          such asset at such date of determination and (B) the amount of
          such Indebtedness, (vii) all Indebtedness of other Persons
          Guaranteed by such Person to the extent such Indebtedness is
          Guaranteed by such Person and (viii) to the extent not otherwise
          included in this definition, obligations under Currency
          Agreements and Interest Rate Agreements. The amount of
          Indebtedness of any Person at any date shall be the outstanding
          balance at such date (or, in the case of a revolving credit or
          other similar facility, the total amount of principal or interest
          outstanding on the date of determination) of all unconditional
          obligations as described above and, with respect to contingent
          obligations, the maximum liability upon the occurrence of the
          contingency giving rise to the obligation of the types described
          above, provided (A) that the amount outstanding at any time of
          any Indebtedness issued with original issue discount is the
          original issue price of such Indebtedness, (B) that money
          borrowed and set aside at the time of the Incurrence of any
          Indebtedness in order to prefund the payment of the interest on
          such Indebtedness shall not be deemed to be "Indebtedness" and
          (C) that Indebtedness shall not include any liability for
          federal, state, local or other taxes.


                                      -65-
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               "Interest Rate Agreement" means any interest rate protection
          agreement, interest rate future agreement, interest rate option
          agreement, interest rate swap agreement, interest rate cap
          agreement, interest rate collar agreement, interest rate hedge
          agreement, option or future contract or other similar agreement
          or arrangement.

               "Internet Service Business" means any business operating an
          internet connectivity or internet enhancement service as it
          exists from time to time, including, without limitation, dial-up
          or dedicated internet service, web hosting or collocation
          services, security solutions, the provision and development of
          software in connection therewith, configuration services,
          electronic commerce, intranet solutions, data backup and
          restoral, business, content and collaboration, communications
          tools or network equipment products or services.

               "Investment" means, with respect to any Person, all
          investments by such Person in other Persons in the form of any
          direct or indirect advance, loan or other extension of credit
          (including, without limitation, by way of Guarantee or similar
          arrangement; but excluding installment sales, capital leasing
          arrangements and financings for and advances to customers, in
          each case in the ordinary course of business that are, in
          conformity with GAAP, recorded as assets on the balance sheet of
          the Company or its Restricted Subsidiaries and commissions,
          travel and similar advances to officers and employees made in the
          ordinary course of business) or capital contribution to (by means
          of any transfer of cash or other property to others or any
          payment for property or services for the account or use of
          others), or any purchase or acquisition of Capital Stock, bonds,
          notes, debentures or other similar instruments issued by, such
          other Person and shall include (i) the designation of a
          Restricted Subsidiary as an Unrestricted Subsidiary and (ii) the
          fair market value of the Capital Stock (or any other Investment),
          held by the Company or any of its Restricted Subsidiaries, of (or
          in) any Person that has ceased to be a Restricted Subsidiary,
          including without limitation, by reason of any transaction
          permitted by clause (iii) of the "Limitation on the Issuance and
          Sale of Capital Stock of Restricted Subsidiaries" covenant;
          provided that the fair market value of the Investment remaining
          in any Person that has ceased to be a Restricted Subsidiary shall
          not exceed the aggregate amount of Investments previously made in
          such Person valued at the time such Investments were made less
          the net reduction of such Investments; and provided, further,
          that any disposition, sale, lease, transfer, license, transfer of
          rights-of-use of, communications equipment, software and capacity
          and/or provision of services, by the Company or any Restricted
          Subsidiary to ICG or its subsidiaries for fair market value (if,
          at the time of such disposition, sale, lease or transfer, the
          Company or such Restricted Subsidiary is a Subsidiary of ICG)
          will not be deemed to be an Investment. For purposes of the
          definition of "Unrestricted Subsidiary" and the "Limitation on
          Restricted Payments" covenant described below, (i) "Investment"
          shall include the fair market value of the assets (net of
          liabilities (other than liabilities to the Company or any of its
          Restricted Subsidiaries)) of any Restricted Subsidiary at the
          time that such Restricted Subsidiary is designated an
          Unrestricted Subsidiary, (ii) the fair market value of the assets
          (net of liabilities (other than liabilities to the Company or any
          of its Restricted Subsidiaries)) of any Unrestricted Subsidiary
          at the time that such Unrestricted Subsidiary is designated a
          Restricted Subsidiary shall be considered a reduction in
          outstanding Investments and (iii) any property transferred to or
          from an Unrestricted Subsidiary shall be valued at its fair
          market value at the time of such transfer.

               "Investment Grade Securities" means (i) securities issued or
          directly and fully guaranteed or insured by the United States
          government or any agency or instrumentality thereof (other than
          cash equivalents), (ii) debt securities or debt instruments with
          a rating of BBB+ or higher by S&P or Baa1 or higher by Moody's or
          the equivalent of such rating by such rating organization, or, if
          no rating of S&P or Moody's then exists, the equivalent of such
          rating by any other nationally recognized securities rating
          agency, but excluding any debt securities or instruments
          constituting loans or advances among the Company and its
          Subsidiaries, and (iii) investment in any fund that invests
          exclusively in investments of the type described in clauses (i)
          and (ii) which fund may also hold cash pending investment and/or
          distribution.

               "Lien" means any mortgage, pledge, security interest,
          encumbrance, lien or charge of any kind (including, without
          limitation, any conditional sale or other title retention
          agreement or lease in the nature thereof or any agreement to give
          any security interest).


                                       -66-
     <PAGE>


               "Moody's" means Moody's Investors Service, Inc. and its
          successors. 

               "Net Cash Proceeds" means (a) with respect to any Asset
          Sale, the proceeds of such Asset Sale in the form of cash or cash
          equivalents, including payments in respect of deferred payment
          obligations (to the extent corresponding to the principal, but
          not interest, component thereof) when received in the form of
          cash or cash equivalents (except to the extent such obligations
          are financed or sold with recourse to the Company or any
          Restricted Subsidiary) and proceeds from the conversion of other
          property received when converted to cash or cash equivalents, net
          of (i) brokerage commissions and other commissions, fees and
          expenses (including fees and expenses of counsel, accountants and
          investment bankers) related to such Asset Sale and any relocation
          expenses incurred as a result thereof, (ii) provisions for all
          taxes (whether or not such taxes will actually be paid or are
          payable) as a result of such Asset Sale without regard to the
          consolidated results of operations of the Company and its
          Restricted Subsidiaries, taken as a whole, (iii) payments made to
          repay Indebtedness or any other obligation outstanding at the
          time of such Asset Sale that either (A) is secured by a Lien on
          the property or assets sold or (B) is required to be paid as a
          result of such sale and (iv) appropriate amounts to be provided
          by the Company or any Restricted Subsidiary as a reserve against
          any liabilities associated with such Asset Sale, including,
          without limitation, pension and other post-employment benefit
          liabilities, liabilities related to environmental matters and
          liabilities under any indemnification obligations associated with
          such Asset Sale, all as determined in conformity with GAAP and
          (b) with respect to any issuance or sale of Capital Stock, the
          proceeds of such issuance or sale in the form of cash or cash
          equivalents, including payments in respect of deferred payment
          obligations (to the extent corresponding to the principal, but
          not interest, component thereof) when received in the form of
          cash or cash equivalents (except to the extent such obligations
          are financed or sold with recourse to the Company or any
          Restricted Subsidiary) and proceeds from the conversion of other
          property received when converted to cash or cash equivalents, net
          of attorney's fees, accountants' fees, underwriters' or placement
          agents' fees, discounts or commissions and brokerage, consultant
          and other fees incurred in connection with such issuance or sale
          and net of taxes paid or payable as a result thereof.

               "Offer to Purchase" means an offer to purchase New Notes by
          the Company from the Holders commenced by mailing a notice to the
          Trustee and each Holder stating: (i) the covenant pursuant to
          which the offer is being made and that all New Notes validly
          tendered will be accepted for payment on a pro rata basis; (ii)
          the purchase price and the date of purchase (which shall be a
          Business Day no earlier than 30 days nor later than 60 days from
          the date such notice is mailed) (the "Payment Date"); (iii) that
          any New Note not tendered will continue to accrue interest
          pursuant to its terms; (iv) that, unless the Company defaults in
          the payment of the purchase price, any New Note accepted for
          payment pursuant to the Offer to Purchase shall cease to accrue
          interest on and after the Payment Date; (v) that Holders electing
          to have a New Note purchased pursuant to the Offer to Purchase
          will be required to surrender the New Note, together with the
          form entitled "Option of the Holder to Elect Purchase" on the
          reverse side of the New Note completed, to the Paying Agent at
          the address specified in the notice prior to the close of
          business on the Business Day immediately preceding the Payment
          Date; (vi) that Holders will be entitled to withdraw their
          election if the Paying Agent receives, not later than the close
          of business on the third Business Day immediately preceding the
          Payment Date, a telegram, facsimile transmission or letter
          setting forth the name of such Holder, the principal amount of
          Notes delivered for purchase and a statement that such Holder is
          withdrawing his election to have such New Notes purchased; and
          (vii) that Holders whose New Notes are being purchased only in
          part will be issued new New Notes equal in principal amount at
          maturity to the unpurchased portion of the New Notes surrendered;
          provided that each New Note purchased and each new New Note
          issued shall be in a principal amount of $1,000 or an integral
          multiple thereof. On the Payment Date, the Company shall (i)
          accept for payment on a pro rata basis New Notes or portions
          thereof tendered pursuant to an Offer to Purchase; (ii) deposit
          with the Paying Agent money sufficient to pay the purchase price
          of all New Notes or portions thereof so accepted; and (iii)
          deliver, or cause to be delivered, to the Trustee all New Notes
          or portions thereof so accepted together with an Officers'
          Certificate specifying the New Notes or portions thereof accepted
          for payment by the Company. The Paying Agent shall promptly mail
          to the Holders of New Notes so accepted payment in an amount
          equal to the purchase price (or, if the New Notes are represented
          by one or more permanent global New Notes registered in the name
          of DTC or its nominee, by such other method as required thereby),
          and the Trustee shall promptly authenticate and mail to such


                                       -67-
     <PAGE>


          Holders a new New Note equal in principal amount at maturity to
          any unpurchased portion of the New Note surrendered; provided
          that each New Note purchased and each new New Note issued shall
          be in a principal amount at maturity of $1,000 or an integral
          multiple thereof. The Company will publicly announce the results
          of an Offer to Purchase as soon as practicable after the Payment
          Date. The Trustee shall act as the Paying Agent for an Offer to
          Purchase. The Company will comply with Rule 14e-1 under the
          Exchange Act and any other securities laws and regulations
          thereunder to the extent such laws and regulations are
          applicable, in the event that the Company is required to
          repurchase New Notes pursuant to an Offer to Purchase.

               "Permitted Investment" means (i) an Investment in the
          Company or a Restricted Subsidiary or a Person which will, upon
          the making of such Investment, become a Restricted Subsidiary or
          be merged or consolidated with or into or transfer or convey all
          or substantially all its assets to, the Company or a Restricted
          Subsidiary; provided that such Person's primary business is
          related, ancillary or complementary to the businesses of the
          Company and its Restricted Subsidiaries on the date of such
          Investment; (ii) Temporary Cash Investments and Investment Grade
          Securities; (iii) payroll, travel and similar advances to cover
          matters that are expected at the time of such advances ultimately
          to be treated as expenses in accordance with GAAP and reasonable
          advances to sales representatives; (iv) any Investment acquired
          by the Company or any of its Restricted Subsidiaries (x) in
          exchange for any other Investment or accounts receivable held by
          the Company or any such Restricted Subsidiary in connection with
          or as a result of a bankruptcy, workout, reorganization or
          recapitalization of the issuer of such other Investment or
          accounts receivable or (y) as a result of a foreclosure by the
          Company or any of its Restricted Subsidiaries with respect to any
          secured Investment or other transfer of title with respect to any
          secured Investment in default; (v) Guarantees permitted by the
          "Limitation on Indebtedness" covenant; (vi) loans or advances to
          employees of the Company or any Restricted Subsidiary that do not
          in the aggregate exceed at any one time outstanding $2.0 million;
          (vii) Currency Agreements and Interest Rate Agreements permitted
          under the "Limitation on Indebtedness" covenant; (viii)
          Investments in prepaid expenses, negotiable instruments held for
          collection and lease, utility deposits and workers' compensation,
          performance and other similar deposits; (ix) Investments in debt
          securities or other evidences of Indebtedness that are issued by
          companies engaged in the Telecommunications Business or the
          Internet Service Business; provided that when each Investment
          pursuant to this clause (ix) is made, the aggregate amount of
          Investments outstanding under this clause (ix) does not exceed
          $3.0 million; (x) Strategic Investments and Investments in
          Permitted Joint Ventures in an amount not to exceed $30.0 million
          at any one time outstanding; (xi) an Investment in any Person the
          primary business of which is related, ancillary or complementary
          to (I) the business of the Company and its Subsidiaries on the
          date of such Investments or (II) the Telecommunications Business
          in an amount not to exceed at any time outstanding the sum of (A)
          $20.0 million plus (B) 10% of the Company's Consolidated EBITDA,
          if positive, for the immediately preceding four fiscal quarters
          (valued in each case as provided in the definition of
          "Investments"); (xii) securities received in connection with
          Asset Sales to the extent constituting non-cash consideration
          permitted under the "Asset Sale" covenant; (xiii) stock,
          obligations or securities received in satisfaction of judgments,
          bankruptcies, workouts or settlements; (xiv) Investments in
          CSW/ICG ChoiceCom, L.P. and (xv) any Investments acquired as
          capital contribution, including without limitation, acquisition
          of shares of ICG Common Stock.

               "Permitted Joint Venture" means any Unrestricted Subsidiary
          or any other Person in which the Company or a Restricted
          Subsidiary owns, directly or indirectly, an ownership interest
          (other than a Restricted Subsidiary) and whose primary business
          is related, ancillary or complementary to (i) the businesses of
          the Company and its Restricted Subsidiaries at the time of
          determination or (ii) the Telecommunications Business.

               "Permitted Liens" means (i) Liens for taxes, assessments,
          governmental charges or claims that are being contested in good
          faith by appropriate legal proceedings promptly instituted and
          diligently conducted and for which a reserve or other appropriate
          provision, if any, as shall be required in conformity with GAAP
          shall have been made; (ii) statutory and common law Liens of
          landlords and carriers, warehousemen, mechanics, attorneys,
          suppliers, materialmen, repairmen or other similar Liens arising
          in the ordinary course of business, unexercised rights of set
          off, in each case with respect to amounts not yet delinquent or
          that are bonded or being contested in good faith by appropriate


                                     -68-
     <PAGE>


          legal proceedings promptly instituted and diligently conducted
          and for which a reserve or other appropriate provision, if any,
          as shall be required in conformity with GAAP shall have been
          made; (iii) Liens incurred or deposits made in the ordinary
          course of business in connection with workers' compensation,
          unemployment insurance and other types of social security; (iv)
          Liens incurred or deposits made to secure the performance of
          tenders, bids, leases, licenses, statutory or regulatory
          obligations, bankers' acceptances, surety, performance and appeal
          bonds, trade or government contracts, performance and return-of-
          money bonds and other obligations of a similar nature incurred in
          the ordinary course of business (exclusive of obligations for the
          payment of borrowed money); (v) easements (including reciprocal
          easement agreements), rights-of-way, municipal, building and
          zoning ordinances and similar charges, utility agreements,
          covenants, reservations, restrictions, encroachments, charges,
          encumbrances, title defects or other irregularities that do not
          materially interfere with the ordinary course of business of the
          Company or any of its Restricted Subsidiaries; (vi) Liens
          (including extensions and renewals thereof) upon real or personal
          property or other assets or rights acquired after the Closing
          Date; provided that (a) such Lien is created solely for the
          purpose of securing Trade Payables that the Company reasonably
          expects to pay within 180 days or Indebtedness Incurred, in
          accordance with the "Limitation on Indebtedness" covenant
          described below, to finance the cost of (including the cost of
          design, development, acquisition, construction, installment,
          improvements, transportation or integration) or to acquire the
          item of property or assets subject thereto (including, without
          limitation, acquisition by way of acquisitions of real property,
          leasehold improvements, licenses, rights-of-use, Capitalized
          Leases and installment sales, and any refinancings thereof) and
          such Lien is created prior to, at the time of or within six
          months after the later of the acquisition, the completion of
          construction or the commencement of full operation of such
          property, (b) the principal amount of the Trade Payables or
          Indebtedness secured by such Lien does not exceed 100% of such
          cost and (c) any such Lien shall not extend to or cover any
          property or assets other than such item of property or assets and
          any improvements on such item; (vii) leases, subleases, licenses
          and rights-of-use granted to others and rights of purchase
          pursuant to installment sales that do not materially interfere
          with the ordinary course of business of the Company and its
          Restricted Subsidiaries, taken as a whole; (viii) Liens
          encumbering property or assets under construction arising from
          progress or partial payments by a customer of the Company or its
          Restricted Subsidiaries relating to such property or assets; (ix)
          any interest or title of a lessor in the property subject to any
          Capitalized Lease or operating lease; (x) Liens arising from
          filing Uniform Commercial Code financing statements regarding
          leases or installment sales; (xi) Liens on property of, or on
          shares of Capital Stock or Indebtedness of, any Person existing
          at the time such Person becomes, or becomes a part of, any
          Restricted Subsidiary; provided that such Liens do not extend to
          or cover any property or assets of the Company or any Restricted
          Subsidiary other than the property or assets acquired; (xii)
          Liens in favor of the Company or any Restricted Subsidiary;
          (xiii) Liens arising from the rendering of a final judgment or
          order against the Company or any Restricted Subsidiary that does
          not give rise to an Event of Default; (xiv) Liens securing
          reimbursement obligations with respect to letters of credit that
          encumber documents and other property relating to such letters of
          credit and the products and proceeds thereof; (xv) Liens in favor
          of customs and revenue authorities arising as a matter of law to
          secure payment of customs duties in connection with the
          importation of goods; (xvi) Liens encumbering customary initial
          deposits and margin deposits, and other Liens that are within the
          general parameters customary in the industry and incurred in the
          ordinary course of business, in each case, securing Indebtedness
          under Interest Rate Agreements and Currency Agreements and
          forward contracts, options, future contracts, futures options or
          similar agreements or arrangements designed solely to protect the
          Company or any of its Restricted Subsidiaries from fluctuations
          in interest rates, currencies or the price of commodities; (xvii)
          Liens arising out of conditional sale, installment sales, title
          retention, consignment or similar arrangements for the sale of
          goods entered into by the Company or any of its Restricted
          Subsidiaries in the ordinary course of business; and (xviii)
          Liens on or sales of receivables.

               "Restricted Subsidiary" means any Subsidiary of the Company
          other than an Unrestricted Subsidiary.

               "S&P" means Standard & Poor's Ratings Services and its
          successors. 



                                     -69-
     <PAGE>


               "Significant Subsidiary" means, at any date of
          determination, any Restricted Subsidiary that, together with its
          Subsidiaries, (i) for the most recent fiscal year of the Company,
          accounted for more than 10% of the consolidated revenues of the
          Company and its Restricted Subsidiaries or (ii) as of the end of
          such fiscal year, was the owner of more than 10% of the
          consolidated assets of the Company and its Restricted
          Subsidiaries, all as set forth on the most recently available
          consolidated financial statements of the Company for such fiscal
          year.

               "Southwest Communications Business" means the Company's or
          any of its Subsidiaries' (A) Internet connectivity or Internet
          enhancement service as it exists from time to time in the states
          of Texas, Louisiana, Arkansas and Oklahoma, including, without
          limitation, dial-up or dedicated Internet service, Web site
          hosting or collocation services, security solutions, the
          provision and development of software in connection therewith,
          configuration services, electronic commerce, intranet solutions,
          data backup and restoral, business content and collaboration,
          communications tools or network equipment products or services
          and (B) development, ownership or operations of one or more
          telephone, telecommunications or information systems or the
          provision of telephony, telecommunications or information
          services (including, without limitation, any voice, video, data
          or Internet services) and any related, ancillary or complementary
          business in the states of Texas, Louisiana, Arkansas and
          Oklahoma.

               "Specified Date" means any Redemption Date, any Payment Date
          for an Offer to Purchase or any date on which the Notes first
          become due and payable after an Event of Default.

               "Stated Maturity" means (i) with respect to any debt
          security, the date specified in such debt security as the fixed
          date on which the final installment of principal of such debt
          security is due and payable and (ii) with respect to any
          scheduled installment of principal of or interest on any debt
          security, the date specified in such debt security as the fixed
          date on which such installment is due and payable.

               "Strategic Investments" means (A) Investments that the Board
          of Directors has determined in good faith will enable the Company
          or any of its Restricted Subsidiaries to obtain additional
          business that it might not be able to obtain without making such
          Investment and (B) Investments in entities the principal function
          of which is to perform research and development with respect to
          products and services that may be used or useful in the
          Telecommunications Business or the Internet Service Business;
          provided that the Company or one of its Restricted Subsidiaries
          is entitled or otherwise reasonably expected to obtain rights to
          such products or services as a result of such Investment.

               "Strategic Subordinated Indebtedness" means Indebtedness of
          the Company that (i) is expressly made subordinate in right of
          payment to the New Notes and (ii) provides that no payment of
          principal, premium or interest on, or any other payment with
          respect to, such Indebtedness may be made prior to the payment in
          full of all of the Company's obligations under the New Notes.

               "Subsidiary" means, with respect to any Person, (i) any
          corporation, association, or other business entity (other than a
          partnership) of which more than 50% of the total voting power of
          shares of Capital Stock entitled (without regard to the
          occurrence of any contingency) to vote in the election of
          directors, managers or trustees thereof is at the time of
          determination owned or controlled, directly or indirectly, by
          such Person or one or more of the other Subsidiaries of such
          Person or a combination thereof and (ii) any partnership, joint
          venture, limited liability company or similar entity of which (x)
          more than 50% of the capital accounts, distribution rights, total
          equity and voting interests or general or limited partnership
          interests, as applicable, are owned or controlled, directly or
          indirectly, by such Person or one or more of the other
          Subsidiaries of such Person or a combination thereof whether in
          the form of membership, general, special or limited partnership
          or otherwise and (y) such Person or any Wholly Owned Restricted
          Subsidiary of such Person is a general partner or otherwise
          controls such entity.

               "Telecommunications Business" means the development,
          ownership or operation of one or more telephone,
          telecommunications or information systems or the provision of
          telephony, telecommunications or information services (including,


                                    -70-
     <PAGE>


          without limitation, any voice, video, data or Internet services)
          and any related, ancillary or complementary business.

               "Temporary Cash Investment" means any of the following: (i)
          direct obligations of the United States of America or any agency
          thereof or obligations fully and unconditionally guaranteed by
          the United States of America or any agency or instrumentality
          thereof, (ii) deposit accounts, time deposit accounts,
          certificates of deposit, eurodollar time deposits, overnight bank
          deposits and money market deposits maturing within one year or
          less of the date of acquisition thereof issued by a bank or trust
          company which is organized under the laws of the United States of
          America, any state thereof or any foreign country recognized by
          the United States of America, and which bank or trust company has
          capital, surplus and undivided profits aggregating in excess of
          $50 million (or the foreign currency equivalent thereof) and has
          outstanding debt which is rated "A" (or such similar equivalent
          rating) or higher by at least one nationally recognized
          statistical rating organization (as defined in Rule 436 under the
          Securities Act) or any money-market fund sponsored by a
          registered broker dealer or mutual fund distributor, (iii)
          repurchase obligations with a term of not more than 30 days for
          underlying securities of the types described in clauses (i) and
          (ii) above entered into with a bank meeting the qualifications
          described in clause (ii) above, (iv) commercial paper, maturing
          not more than 90 days after the date of acquisition, issued by a
          corporation (other than an Affiliate of the Company) organized
          and in existence under the laws of the United States of America,
          any state thereof or any foreign country recognized by the United
          States of America with a rating at the time as of which any
          investment therein is made of "P-1" (or higher) according to
          Moody's or "A-1" (or higher) according to S&P, (v) securities
          with maturities of six months or less from the date of
          acquisition issued or fully and unconditionally guaranteed by any
          state, commonwealth or territory of the United States of America,
          or by any political subdivision or taxing authority thereof, and
          rated at least "A" by S&P or Moody's, and (vi) investment funds
          investing 95% of their assets in securities of the type described
          in clauses (i) through (v) above.

               "Trade Payables" means, with respect to any Person, any
          accounts payable or any other indebtedness or monetary obligation
          to trade creditors created, assumed or Guaranteed by such Person
          or any of its Subsidiaries arising in the ordinary course of
          business in connection with the acquisition of goods or services
          and required to be paid within one year.

               "Transaction Date" means, with respect to the Incurrence of
          any Indebtedness by the Company or any of its Restricted
          Subsidiaries, the date such Indebtedness is to be Incurred and,
          with respect to any Restricted Payment, the date such Restricted
          Payment is to be made.

               "Unrestricted Subsidiary" means (i) any Subsidiary of the
          Company that at the time of determination shall be designated an
          Unrestricted Subsidiary by the Board of Directors in the manner
          provided below; and (ii) any Subsidiary of an Unrestricted
          Subsidiary. The Board of Directors may designate any Restricted
          Subsidiary (including any newly acquired or newly formed
          Subsidiary of the Company) to be an Unrestricted Subsidiary
          unless such Subsidiary owns any Capital Stock of, or owns or
          holds any Lien on any property of, the Company or any Restricted
          Subsidiary; provided that (A) any Guarantee by the Company or any
          Restricted Subsidiary of any Indebtedness of the Subsidiary being
          so designated shall be deemed an "Incurrence" of such
          Indebtedness and an "Investment" by the Company or such
          Restricted Subsidiary (or both, if applicable) at the time of
          such designation; (B) either (I) the Subsidiary to be so
          designated has total assets of $1,000 or less or (II) if such
          Subsidiary has assets greater than $1,000, such designation would
          be permitted under the "Limitation on Restricted Payments"
          covenant described below and (C) if applicable, the Incurrence of
          Indebtedness and the Investment referred to in clause (A) of this
          proviso would be permitted under the "Limitation on Indebtedness"
          and "Limitation on Restricted Payments" covenants described
          below. The Board of Directors may designate any Unrestricted
          Subsidiary to be a Restricted Subsidiary; provided that (i) no
          Default or Event of Default shall have occurred and be continuing
          at the time of or after giving effect to such designation and
          (ii) all Liens and Indebtedness of such Unrestricted Subsidiary
          outstanding immediately after such designation would, if Incurred
          at such time, have been permitted to be Incurred (and shall be
          deemed to have been Incurred) for all purposes of the Indenture.


                                      -71-
     <PAGE>


          Any such designation by the Board of Directors shall be evidenced
          to the Trustee by promptly filing with the Trustee a copy of the
          Board Resolution giving effect to such designation and an
          Officers' Certificate certifying that such designation complied
          with the foregoing provisions.

               "Voting Stock" means, with respect to any Person, Capital
          Stock of any class or kind ordinarily having the power to vote
          for the election of directors, managers or other voting members
          of the governing body of such Person.

               "Wholly Owned" means, with respect to any Subsidiary of any
          Person, the ownership of all of the outstanding Capital Stock of
          such Subsidiary (other than any director's qualifying shares or
          Investments by foreign nationals mandated by applicable law) by
          such Person or one or more Wholly Owned Subsidiaries of such
          Person.

          COVENANTS

          Limitation on Indebtedness

               (a) The Company will not, and will not permit any of its
          Restricted Subsidiaries to, Incur any Indebtedness (other than
          the New Notes and Indebtedness existing on the Closing Date);
          provided that the Company may Incur Indebtedness if, after giving
          effect to the Incurrence of such Indebtedness and the receipt and
          application of the proceeds therefrom, the Consolidated Leverage
          Ratio would be greater than zero and less than 6:1.

               Notwithstanding the foregoing, the Company and any
          Restricted Subsidiary (except as specified below) may Incur each
          and all of the following: (i) Indebtedness of the Company or its
          Restricted Subsidiaries outstanding at any time in an aggregate
          principal amount not to exceed (A) $200 million of unsubordinated
          Indebtedness (including any Indebtedness under one or more
          revolving credit or working capital facilities) and (B) $200
          million of subordinated Indebtedness (and any Guarantees thereof
          by the Company or its Restricted Subsidiaries), less any amount
          of such Indebtedness permanently repaid as provided under the
          "Limitation on Asset Sales" covenant described below; (ii) the
          Incurrence by the Company of Indebtedness represented by the New
          Notes; (iii) Indebtedness in existence on the Closing Date; (iv)
          Indebtedness of the Company to a Restricted Subsidiary and
          Indebtedness of a Restricted Subsidiary to the Company or another
          Restricted Subsidiary; provided that such Indebtedness is made
          pursuant to an intercompany note (which, in the case of
          Indebtedness owed to the Company, shall be unsubordinated) and
          any event which results in any such Restricted Subsidiary ceasing
          to be a Restricted Subsidiary or any subsequent transfer of such
          Indebtedness (other than to the Company or another Restricted
          Subsidiary) shall be deemed, in each case, to constitute an
          Incurrence of such Indebtedness not permitted by this clause
          (iv); (v) Indebtedness issued in exchange for, or the net
          proceeds of which are used to refinance or refund, then
          outstanding Indebtedness (other than Indebtedness Incurred under
          clauses (i), (iv), (vi) or (viii) of this paragraph) and any
          refinancings thereof in an amount not to exceed the amount so
          refinanced or refunded (plus premiums, accrued interest, fees and
          expenses); provided that Indebtedness the proceeds of which are
          used to refinance or refund Indebtedness that is subordinated in
          right of payment to the New Notes shall only be permitted under
          this clause (v) if (A) such new Indebtedness, by its terms or by
          the terms of any agreement or instrument pursuant to which such
          new Indebtedness is issued or remains outstanding, is expressly
          made subordinate in right of payment to the New Notes at least to
          the extent that the Indebtedness to be refinanced is subordinated
          to the New Notes and (B) such new Indebtedness, determined as of
          the date of Incurrence of such new Indebtedness, does not mature
          prior to the Stated Maturity of the Indebtedness to be refinanced
          or refunded, and the Average Life of such new Indebtedness is at
          least equal to the remaining Average Life of the Indebtedness to
          be refinanced or refunded; and provided further that in no event
          may Indebtedness of the Company be refinanced by means of any
          Indebtedness of any Restricted Subsidiary pursuant to this clause
          (v); (vi) Indebtedness (A) in respect of performance, surety or
          appeal bonds provided in the ordinary course of business, (B)
          under Currency Agreements and Interest Rate Agreements; provided
          that such agreements (a) are designed solely to protect the
          Company or its Restricted Subsidiaries against fluctuations in
          foreign currency exchange rates or interest rates and (b) do not
          increase the Indebtedness of the obligor outstanding at any time
          (except to the extent Incurred under another clause hereof) other
          than as a result of fluctuations in foreign currency exchange


                                     -72-
     <PAGE>


          rates or interest rates or by reason of fees, indemnities and
          compensation payable thereunder; and (C) arising from agreements
          providing for indemnification, adjustment of purchase price or
          similar obligations, or from Guarantees or letters of credit,
          surety bonds or performance bonds securing any obligations of the
          Company or any of its Restricted Subsidiaries pursuant to such
          agreements, in each case Incurred in connection with the
          disposition of any business, assets or Restricted Subsidiary
          (other than Guarantees of Indebtedness Incurred by any Person
          acquiring all or any portion of such business, assets or
          Restricted Subsidiary for the purpose of financing such
          acquisition), in a principal amount not to exceed the gross
          proceeds actually received by the Company or any Restricted
          Subsidiary in connection with such disposition; (vii)
          Indebtedness of the Company, to the extent the net proceeds
          thereof are promptly (A) used to purchase New Notes tendered in
          an Offer to Purchase made as a result of a Change in Control or
          (B) deposited to defease the New Notes as described below under
          "Defeasance"; (viii) Guarantees of the New Notes and Guarantees
          of Indebtedness of the Company by any Restricted Subsidiary
          provided the Guarantee of such Indebtedness is permitted by and
          made in accordance with the "Limitation on Issuance of Guarantees
          by Restricted Subsidiaries" covenant described below and any
          Guarantee by the Company of Indebtedness or other obligations of
          any of its Restricted Subsidiaries so long as the incurrence of
          such Indebtedness Incurred by such Restricted Subsidiary is
          permitted under the terms of this covenant; (ix) Indebtedness
          Incurred to finance the cost (including, without limitation, the
          cost of design, development, acquisition, construction,
          installation, improvement, transportation or integration) to
          acquire equipment, inventory, assets, services and related costs
          in connection with the Internet Service Business or the
          Telecommunications Business (including, without limitation,
          acquisitions by way of acquisitions of real property, leasehold
          improvements, licenses, rights-of-use, Capitalized Leases,
          installment sales and acquisitions of the Capital Stock of a
          Person that becomes a Restricted Subsidiary to the extent of the
          fair market value of the equipment, inventory or network assets
          so acquired) by the Company or a Restricted Subsidiary after the
          Closing Date; (x) Indebtedness of the Company not to exceed, at
          any one time outstanding, the sum (without duplication) of (A)
          two times the Net Cash Proceeds received by the Company from the
          sale of ICG Common Stock contributed by ICG to the Company after
          the Closing Date to a Person that is not a Subsidiary of the
          Company (1.6 times the closing price, last sale price or similar
          price of such ICG Common Stock at the time received by the
          Company to the extent such ICG Common Stock has not been sold)
          plus (B) two times cash or cash equivalents contributed by ICG or
          its Subsidiaries (other than the Company and its Subsidiaries) to
          the Company after the Closing Date plus (C) 1.6 times the fair
          market value of other assets (including, without limitation,
          Capital Stock) acquired by the Company or its Restricted
          Subsidiaries to the extent that the consideration therefor
          consists of ICG Common Stock plus (D) 1.6 times the fair market
          value of other assets contributed by ICG or its Subsidiaries
          (other than the Company and its Subsidiaries) to the Company
          after the Closing Date plus (E) two times the Net Cash Proceeds
          received by the Company after the Closing Date from the issuance
          and sale of its Capital Stock (other than Disqualified Stock) to
          a Person that is not a Subsidiary of the Company plus (F) 1.6
          times the fair market value of property (other than cash and cash
          equivalents) received by the Company after the Closing Date from
          the sale of its Capital Stock (other than Disqualified Stock) to
          a Person that is not a Subsidiary of the Company, in each case,
          to the extent such Net Cash Proceeds, ICG Common Stock, cash or
          cash equivalents or such other assets or property have not been
          used pursuant to clause (C)(2) of the first paragraph or clause
          (iii) or (iv), as the case may be, of the second paragraph of the
          "Limitation on Restricted Payments" covenant described below;
          provided that such Indebtedness does not mature prior to the
          Stated Maturity of the New Notes and has a then current Average
          Life at least as long as the New Notes; (xi) Indebtedness
          Incurred by the Company or any of its Restricted Subsidiaries
          constituting reimbursement obligations with respect to letters of
          credit in the ordinary course of business, including, without
          limitation, letters of credit in respect of workers' compensation
          claims or self insurance, or other Indebtedness with respect to
          reimbursement type obligations regarding workers' compensation
          claims; provided, however, that upon the drawing of such letters
          of credit or the Incurrence of such Indebtedness, such
          obligations are reimbursed within 30 days following such drawing
          or Incurrence; (xii) Acquired Indebtedness or Indebtedness of
          Persons that are acquired by the Company or any of its Restricted
          Subsidiaries or merged into a Restricted Subsidiary in accordance
          with the terms of the Indenture; provided that such Indebtedness
          is not incurred in contemplation of such acquisition or merger;
          and (xiii) Strategic Subordinated Indebtedness.


                                      -73-
     <PAGE>


               (b) Notwithstanding any other provision of this "Limitation
          on Indebtedness" covenant, the maximum amount of Indebtedness
          that the Company or a Restricted Subsidiary may Incur pursuant to
          this "Limitation on Indebtedness" covenant shall not be deemed to
          be exceeded, with respect to any outstanding Indebtedness due
          solely to the result of fluctuations in the exchange rates of
          currencies. Accretion on an instrument issued at a discount will
          not be deemed to constitute an Incurrence of Indebtedness.

               (c) For purposes of determining any particular amount of
          Indebtedness under this "Limitation on Indebtedness" covenant,
          (1) Guarantees, Liens or obligations with respect to letters of
          credit supporting Indebtedness otherwise included in the
          determination of such particular amount shall not be included and
          (2) any Liens granted pursuant to the equal and ratable
          provisions referred to in the "Limitation on Liens" covenant
          described below shall not be treated as Indebtedness. For
          purposes of determining compliance with this "Limitation on
          Indebtedness" covenant, in the event that an item of Indebtedness
          meets the criteria of more than one of the types of Indebtedness
          described in the above clauses, the Company, in its sole
          discretion, shall classify such item of Indebtedness and only be
          required to include the amount and type of such Indebtedness in
          one of such clauses.

          Limitation on Restricted Payments

               The Company will not, and will not permit any Restricted
          Subsidiary to, directly or indirectly, (i) declare or pay any
          dividend or make any distribution on or with respect to its
          Capital Stock (other than (x) dividends or distributions payable
          solely in shares of its Capital Stock (other than Disqualified
          Stock) or in options, warrants or other rights to acquire shares
          of such Capital Stock and (y) pro rata dividends or distributions
          on common stock of Restricted Subsidiaries held by minority
          stockholders) held by Persons other than the Company or any of
          its Restricted Subsidiaries, (ii) purchase, redeem, retire or
          otherwise acquire for value any shares of Capital Stock of (A)
          the Company or an Unrestricted Subsidiary (including options,
          warrants or other rights to acquire such shares of Capital Stock)
          held by any Person or (B) a Restricted Subsidiary (including
          options, warrants or other rights to acquire such shares of
          Capital Stock) held by any Affiliate of the Company (other than a
          Wholly Owned Restricted Subsidiary), (iii) make any voluntary or
          optional principal payment, or voluntary or optional redemption,
          repurchase, defeasance, or other acquisition or retirement for
          value, of Indebtedness of the Company that is subordinated in
          right of payment to the Notes (other than the purchase,
          redemption, repurchase or other acquisition of such subordinated
          Indebtedness purchased in anticipation of satisfying a sinking
          fund obligation, principal installment or final maturity, in each
          case due within six months of the date of acquisition) or (iv)
          make any Investment, other than a Permitted Investment, in any
          Person (such payments or any other actions described in clauses
          (i) through (iv) above being collectively "Restricted Payments")
          if, at the time of, and after giving effect to, the proposed
          Restricted Payment: (A) a Default or Event of Default shall have
          occurred and be continuing, (B) except with respect to making any
          Investments, the Company could not Incur at least $1.00 of
          Indebtedness under the first paragraph of the "Limitation on
          Indebtedness" covenant or (C) the aggregate amount of all
          Restricted Payments (the amount, if other than in cash, to be
          determined in good faith by the Board of Directors, whose
          determination shall be conclusive and evidenced by a Board
          Resolution) made after the Closing Date shall exceed the sum of
          (1) 50% of the aggregate amount of the Adjusted Consolidated Net
          Income (or, if the Adjusted Consolidated Net Income is a loss,
          minus 100% of the amount of such loss) (determined by excluding
          income resulting from transfers of assets by the Company or a
          Restricted Subsidiary to an Unrestricted Subsidiary) accrued on a
          cumulative basis during the period (taken as one accounting
          period) beginning on the first day of the fiscal quarter
          immediately following the Closing Date and ending on the last day
          of the last fiscal quarter preceding the Transaction Date for
          which reports have been filed with the Commission or provided to
          the Trustee pursuant to the "Commission Reports and Reports to
          Holders" covenant plus (2) 100% of (I) the aggregate Net Cash
          Proceeds or fair market value of any Capital Stock and the amount
          of cash from any capital contributions to the Company after the
          Closing Date from Persons other than Subsidiaries of the Company
          (including contributions of ICG Common Stock, cash and cash
          equivalents and other assets to the Company by ICG) plus (II) the
          aggregate Net Cash Proceeds received by the Company after the
          Closing Date from an issuance and sale of its Capital Stock
          (other than Disqualified Stock) to a Person who is not a
          Subsidiary of the Company, including, without limitation, an
          issuance or sale permitted by the Indenture of Indebtedness of


                                      -74-
     <PAGE>


          the Company for cash subsequent to the Closing Date upon the
          conversion of such Indebtedness into Capital Stock (other than
          Disqualified Stock) of the Company, or from the issuance to a
          Person who is not a Subsidiary of the Company of any options,
          warrants or other rights to acquire Capital Stock of the Company
          (in each case, exclusive of any Disqualified Stock or any
          options, warrants or other rights that are redeemable at the
          option of the holder, or are required to be redeemed, prior to
          the Stated Maturity of the New Notes), to the extent such Net
          Cash Proceeds, Capital Stock, marketable securities or amount
          have not been previously applied pursuant to clauses (iii) or
          (iv), as the case may be, of the second paragraph of the
          "Limitation on Restricted Payments" covenant or used to support
          the Incurrence of Indebtedness pursuant to clause (x) under the
          "Limitation of Indebtedness" covenant plus (3) amounts received
          from Investments (other than Permitted Investments) in any Person
          resulting from payments of interest on Indebtedness, dividends,
          repayments of loans or advances, or other transfers of assets, in
          each case to the Company or any Restricted Subsidiary or from the
          Net Cash Proceeds from the sale of any such Investment (except,
          in each case, to the extent any such payment or proceeds are
          included in the calculation of Adjusted Consolidated Net Income),
          or from redesignations of Unrestricted Subsidiaries as Restricted
          Subsidiaries (valued in each case as provided in the definition
          of "Investments"), not to exceed, in each case, the amount of
          Investments previously made by the Company or any Restricted
          Subsidiary in such Person or Unrestricted Subsidiary.

               The foregoing provision shall not be violated by reason of:
          (i) the payment of any dividend within 60 days after the date of
          declaration thereof if, at said date of declaration, such payment
          would comply with the foregoing paragraph; (ii) the redemption,
          repurchase, defeasance or other acquisition or retirement for
          value of Indebtedness that is subordinated in right of payment to
          the Notes including premium, if any, and accrued and unpaid
          interest, with the proceeds of, or in exchange for, Indebtedness
          Incurred under clause (v) of the second paragraph of part (a) of
          the "Limitation on Indebtedness" covenant; (iii) the making of
          any principal payment or the repurchase, redemption, retirement,
          defeasance or other acquisition for value of Indebtedness of the
          Company which is subordinated in right of payment to the New
          Notes (A) with cash or cash equivalents contributed by ICG to the
          Company after the Closing Date or (B) with, or out of the Net
          Cash Proceeds of, ICG Common Stock or other assets (other than
          cash or cash equivalents) contributed by ICG to the Company after
          the Closing Date, or (C) in exchange for, or out of, the Net Cash
          Proceeds of a substantially concurrent offering of shares of
          Capital Stock (other than Disqualified Stock) of the Company (or
          options, warrants or other rights to acquire such Capital Stock),
          to the extent such Net Cash Proceeds, cash or cash equivalents,
          ICG Common Stock, Capital Stock or such other assets have not
          been used pursuant to clause (C)(2) of the first paragraph or
          clause (iv) of the second paragraph, as the case may be, of the
          "Limitation on Restricted Payments Covenant" or used to support
          the Incurrence of Indebtedness pursuant to clause (x) under the
          "Limitation on Indebtedness Covenant"; (iv) the repurchase,
          redemption or other acquisition of Capital Stock of the Company
          or an Unrestricted Subsidiary (or options, warrants or other
          rights to acquire such Capital Stock) in exchange for, or out of
          the proceeds of a substantially concurrent offering of, shares of
          Capital Stock (other than Disqualified Stock) of the Company (or
          options, warrants or other rights to acquire such Capital Stock);
          or (v) other Restricted Payments in an aggregate amount not to
          exceed $10 million; provided that, except in the case of clauses
          (i), (ii), (iii) and (iv), no Default or Event of Default shall
          have occurred and be continuing or occur as a consequence of the
          actions or payments set forth therein.

               Each Restricted Payment permitted pursuant to the preceding
          paragraph (other than the Restricted Payment referred to in
          clause (ii) thereof) shall be included in calculating whether the
          conditions of clause (C) of the first paragraph of this
          "Limitation on Restricted Payments" covenant have been met with
          respect to any subsequent Restricted Payments.

               Any Restricted Payments made other than in cash shall be
          valued at fair market value. The amount of any Investment
          "outstanding" at any time shall be deemed to be equal to the
          amount of such Investment on the date made, less the return of
          capital to the Company and its Restricted Subsidiaries with
          respect to such Investment by distribution, sale or otherwise (up
          to the amount of such Investment on the date made).


                                     -75-
     <PAGE>

     
          Limitation on Dividend and Other Payment Restrictions Affecting
          Restricted Subsidiaries

               The Company will not, and will not permit any Restricted
          Subsidiary to, create or otherwise cause or suffer to exist or
          become effective any consensual encumbrance or restriction of any
          kind on the ability of any Restricted Subsidiary to (i) pay
          dividends or make any other distributions permitted by applicable
          law on any Capital Stock of such Restricted Subsidiary owned by
          the Company or any other Restricted Subsidiary, (ii) pay any
          Indebtedness owed to the Company or any other Restricted
          Subsidiary, (iii) make loans or advances to the Company or any
          other Restricted Subsidiary or (iv) transfer any of its property
          or assets to the Company or any other Restricted Subsidiary.

               The foregoing provisions shall not restrict any encumbrances
          or restrictions: (i) existing on the Closing Date the Indenture
          or any other agreements in effect on the Closing Date, and any
          extensions, refinancings, renewals or replacements of such
          agreements; provided that the encumbrances and restrictions in
          any such extensions, refinancings, renewals or replacements are
          no less favorable in any material respect to the Holders than
          those encumbrances or restrictions that are then in effect and
          that are being extended, refinanced, renewed or replaced; (ii)
          existing under or by reason of applicable law, rule, regulation
          or order; (iii) existing with respect to any Person or the
          property or assets of such Person acquired by the Company or any
          Restricted Subsidiary, existing at the time of such acquisition
          and not incurred in contemplation thereof, which encumbrances or
          restrictions are not applicable to any Person or the property or
          assets of any Person other than such Person or the property or
          assets of such Person so acquired; (iv) in the case of clause
          (iv) of the first paragraph of this "Limitation on Dividend and
          Other Payment Restrictions Affecting Restricted Subsidiaries"
          covenant, (A) that restrict in a customary manner the subletting,
          assignment or transfer of any property or asset that is a lease,
          license, right-of-use, conveyance or contract or similar property
          or asset, (B) existing by virtue of any transfer of, agreement to
          transfer, option or right with respect to, or Lien on, any
          property or assets of the Company or any Restricted Subsidiary
          not otherwise prohibited by the Indenture, (C) arising or agreed
          to in the ordinary course of business, not relating to any
          Indebtedness, and that do not, individually or in the aggregate,
          detract from the value of property or assets of the Company or
          any Restricted Subsidiary in any manner material to the Company
          or any Restricted Subsidiary or (D) purchase money obligations
          (including, without limitation, Capitalized Leases and
          installment sales) for property acquired in the ordinary course
          of business that impose restrictions of the nature discussed in
          clause (iv) above on the property so acquired; (v) with respect
          to a Restricted Subsidiary and imposed pursuant to an agreement
          that has been entered into for the sale or disposition of all or
          substantially all of the Capital Stock of, or property and assets
          of, such Restricted Subsidiary; (vi) contained in the terms of
          any Indebtedness or any agreement pursuant to which such
          Indebtedness was issued if (A)(1) the encumbrances or
          restrictions apply only in the event of a payment default or a
          default with respect to a financial covenant contained in such
          Indebtedness or agreement or (2) the encumbrances or restrictions
          are similar in nature and substance to the "Limitation on
          Restricted Payments" covenant contained herein, as determined by
          the Board of Directors in good faith, (B) the encumbrances or
          restrictions are not materially more disadvantageous to the
          Holders of the New Notes than is customary in comparable
          financings (as determined by the Company) and (C) the Company
          determines that any such encumbrances or restrictions will not
          materially affect the Company's ability to make principal or
          interest payments on the New Notes; (vii) customary provisions in
          joint venture agreements and other similar agreements entered
          into in the ordinary course of business; and (viii) any
          encumbrances or restrictions of the type referred to in clauses
          (i) through (iv) of the first paragraph of this covenant imposed
          by any amendments, modifications, renewals, restatements,
          increases, supplements, refundings, replacements or refinancings
          of the contracts referred to in clause (i) through (vii) above;
          provided that such amendments, modifications, restatements,
          renewals, increases, supplements, refundings, replacements or
          refinancings are, in the good faith judgment of the Company, not
          materially more disadvantageous to the Holders than those
          contained in the restriction prior to such amendment,
          modification, restatement, renewal, increase, supplement,
          refunding, replacement or refinancing. Nothing contained in this
          "Limitation on Dividend and Other Payment Restrictions Affecting
          Restricted Subsidiaries" covenant shall prevent the Company or
          any Restricted Subsidiary from (1) creating, incurring, assuming
          or suffering to exist any Liens otherwise permitted in the
          "Limitation on Liens" covenant or (2) restricting the sale or
          other disposition of property or assets of the Company or any of
          its Restricted Subsidiaries that secure Indebtedness of the
          Company or any of its Restricted Subsidiaries.


                                    -76-
     <PAGE>


          Limitation on the Issuance and Sale of Capital Stock of
          Restricted Subsidiaries

               The Company will not sell, and will not permit any
          Restricted Subsidiary, directly or indirectly, to issue or sell,
          any shares of Capital Stock of a Restricted Subsidiary (including
          options, warrants or other rights to purchase shares of such
          Capital Stock) except (i) to the Company or a Wholly Owned
          Restricted Subsidiary; (ii) issuances of director's qualifying
          shares or sales to foreign nationals of shares of Capital Stock
          of foreign Restricted Subsidiaries, to the extent required by
          applicable law; (iii) if, immediately after giving effect to such
          issuance or sale, such Restricted Subsidiary would no longer
          constitute a Restricted Subsidiary and any Investment in such
          Person remaining after giving effect to such issuance or sale
          would have been permitted to be made under the "Limitation on
          Restricted Payments" covenant if made on the date of such
          issuance or sale; or (iv) issuances or sales of common stock of a
          Restricted Subsidiary, provided that the Company or any
          Restricted Subsidiary applies an amount equal to the Net Cash
          Proceeds thereof in accordance with the "Limitation on Asset
          Sales" covenant.

          Limitation on Issuances of Guarantees by Restricted Subsidiaries

               The Company will not permit any Restricted Subsidiary,
          directly or indirectly, to Guarantee any Indebtedness of the
          Company which is pari passu with or subordinate in right of
          payment to the New Notes ("Guaranteed Indebtedness"), unless (i)
          such Restricted Subsidiary simultaneously executes and delivers a
          supplemental indenture to the Indenture providing for a Guarantee
          (a "Subsidiary Guarantee") of payment of the New Notes by such
          Restricted Subsidiary and (ii) such Restricted Subsidiary waives
          and will not in any manner whatsoever claim or take the benefit
          or advantage of, any rights of reimbursement, indemnity or
          subrogation or any other rights against the Company or any other
          Restricted Subsidiary as a result of any payment by such
          Restricted Subsidiary under its Subsidiary Guarantee; provided
          that this paragraph shall not be applicable to any Guarantee of
          any Restricted Subsidiary that existed at the time such Person
          became a Restricted Subsidiary and was not Incurred in connection
          with, or in contemplation of, such Person becoming a Restricted
          Subsidiary. If the Guaranteed Indebtedness is (A) pari passu in
          right of payment with the New Notes, then the Guarantee of such
          Guaranteed Indebtedness shall be pari passu in right of payment
          with, or subordinated to, the Subsidiary Guarantee or (B)
          subordinated in right of payment to the New Notes, then the
          Guarantee of such Guaranteed Indebtedness shall be subordinated
          in right of payment to the Subsidiary Guarantee at least to the
          extent that the Guaranteed Indebtedness is subordinated to the
          New Notes.

               Notwithstanding the foregoing, any Subsidiary Guarantee by a
          Restricted Subsidiary may provide by its terms that it shall be
          automatically and unconditionally released and discharged upon
          (i) any sale, exchange or transfer, to any Person not an
          Affiliate of the Company, of all of the Company's and each
          Restricted Subsidiary's Capital Stock in, or all or substantially
          all the assets of, such Restricted Subsidiary (which sale,
          exchange or transfer is not prohibited by the Indenture) or (ii)
          the release or discharge of the Guarantee which resulted in the
          creation of such Subsidiary Guarantee, except a discharge or
          release by or as a result of payment under such Guarantee.

          Limitation on Transactions with Shareholders and Affiliates

               The Company will not, and will not permit any Restricted
          Subsidiary to, directly or indirectly, enter into, renew or
          extend any transaction (including, without limitation, the
          purchase, sale, lease or exchange of property or assets, or the
          rendering of any service) with any Affiliate of the Company or
          any Restricted Subsidiary, except upon fair and reasonable terms
          no less favorable to the Company or such Restricted Subsidiary
          than could be obtained, at the time of such transaction or, if
          such transaction is pursuant to a written agreement, at the time
          of the execution of the agreement providing therefor, in a
          comparable arm's-length transaction with a Person that is not
          such an Affiliate.


                                     -77-
     <PAGE>


               The foregoing limitation does not limit, and shall not apply
          to (i) transactions (A) approved by a majority of the
          disinterested members of the Board of Directors or (B) for which
          the Company or a Restricted Subsidiary delivers to the Trustee a
          written opinion of a nationally recognized investment banking
          firm or a nationally recognized firm having expertise in the
          specific area which is the subject of such determination stating
          that the transaction is fair to the Company or such Restricted
          Subsidiary from a financial point of view; (ii) any transaction
          solely between the Company and any of its Restricted Subsidiaries
          or solely between Restricted Subsidiaries; (iii) the payment of
          reasonable and customary regular fees to, and indemnity provided
          on behalf of, officers, directors, employees or consultants of
          the Company or its Restricted Subsidiaries; (iv) any payments or
          other transactions pursuant to any tax-sharing agreement between
          the Company and any other Person with which the Company files a
          consolidated tax return or with which the Company is part of a
          consolidated group for tax purposes; or (v) any Permitted
          Investments and Restricted Payments not prohibited by the
          "Limitation on Restricted Payments" covenant. Notwithstanding the
          foregoing, any transaction or series of related transactions
          covered by the first paragraph of this "Limitation on
          Transactions with Shareholders and Affiliates" covenant and not
          covered by clauses (ii) through (v) of this paragraph the
          aggregate amount of which exceeds $2.0 million in value, must be
          approved or determined to be fair in the manner provided for in
          clause (i) (A) or (B) above.

          Limitation on Liens

               The Company will not, and will not permit any Restricted
          Subsidiary to, create, incur, assume or suffer to exist any Lien
          on any of its assets or properties of any character (including,
          without limitation, licenses), or any shares of Capital Stock or
          Indebtedness of any Restricted Subsidiary, without making
          effective provision for all of the New Notes and all other
          amounts due under the Indenture to be directly secured equally
          and ratably with (or, if the obligation or liability to be
          secured by such Lien is subordinated in right of payment to the
          New Notes, prior to) the obligation or liability secured by such
          Lien.

               The foregoing limitation does not apply to (i) Liens
          existing on the Closing Date or required on the Closing Date to
          be provided in the future; (ii) Liens granted after the Closing
          Date on any assets or Capital Stock of the Company or its
          Restricted Subsidiaries created in favor of the Holders; (iii)
          Liens with respect to the assets of a Restricted Subsidiary
          granted by such Restricted Subsidiary to the Company or a
          Restricted Subsidiary to secure Indebtedness owing to the Company
          or such other Restricted Subsidiary; (iv) Liens securing
          Indebtedness which is Incurred to refinance secured Indebtedness
          which is permitted to be Incurred under clause (v) of the second
          paragraph of the "Limitation on Indebtedness" covenant; provided
          that such Liens do not extend to or cover any property or assets
          of the Company or any Restricted Subsidiary other than the
          property or assets securing the Indebtedness being refinanced;
          (v) Liens on any property or assets of Restricted Subsidiaries
          securing Indebtedness of Restricted Subsidiaries permitted under
          the "Limitation on Indebtedness" covenant; or (vi) Permitted
          Liens.

          Limitation on Sale-Leaseback Transactions

               The Company will not, and will not permit any Restricted
          Subsidiary to, enter into any sale-leaseback transaction
          involving any of its assets or properties whether now owned or
          hereafter acquired, whereby the Company or a Restricted
          Subsidiary sells or transfers such assets or properties and then
          or thereafter leases such assets or properties or any part
          thereof or any other assets or properties which the Company or
          such Restricted Subsidiary, as the case may be, intends to use
          for substantially the same purpose or purposes as the assets or
          properties sold or transferred.

               The foregoing restriction does not apply to any sale-
          leaseback transaction if (i) the lease is for a period, including
          renewal rights, of not in excess of three years; (ii) the lease
          secures or relates to industrial revenue or pollution control
          bonds; (iii) the transaction is solely between the Company and
          any Wholly Owned Restricted Subsidiary or solely between Wholly
          Owned Restricted Subsidiaries; or (iv) the Company or such
          Restricted Subsidiary, within 12 months after the sale or
          transfer of any assets or properties is completed, applies an


                                      -78-
     <PAGE>


          amount not less than the net proceeds received from such sale in
          accordance with clause (A) or (B) of the first paragraph of the
          "Limitation on Asset Sales" covenant described below.

          Limitation on Asset Sales

               The Company will not, and will not permit any Restricted
          Subsidiary to, consummate any Asset Sale, unless (i) the
          consideration received by the Company or such Restricted
          Subsidiary is at least equal to the fair market value of the
          assets sold or disposed of and (ii) at least 75% of the
          consideration received consists of cash or Temporary Cash
          Investments. For purposes of this covenant, the following are
          deemed to be cash: (x) the principal amount or accreted value
          (whichever is larger) of Indebtedness of the Company or any
          Restricted Subsidiary with respect to which the Company or such
          Restricted Subsidiary has either (I) received a written release
          or (II) been released by operation of law, in either case, from
          all liability on such Indebtedness in connection with such Asset
          Sale and (y) securities received by the Company or any Restricted
          Subsidiary from the transferee that are promptly converted by the
          Company or such Restricted Subsidiary into cash. In the event and
          to the extent that the Net Cash Proceeds received by the Company
          or any of its Restricted Subsidiaries from one or more Asset
          Sales occurring on or after the Closing Date in any period of 12
          consecutive months exceed 10% of Adjusted Consolidated Net
          Tangible Assets (determined as of the date closest to the
          commencement of such 12-month period for which a consolidated
          balance sheet of the Company and its Subsidiaries has been filed
          with the Commission or provided to the Trustee pursuant to the
          "Commission Reports and Reports to Holders" covenant), then the
          Company shall or shall cause the relevant Restricted Subsidiary
          to (i) within 12 months after the date Net Cash Proceeds so
          received exceed 10% of Adjusted Consolidated Net Tangible Assets
          (A) apply an amount equal to such excess Net Cash Proceeds to
          permanently repay unsubordinated Indebtedness of the Company, or
          any Restricted Subsidiary providing a Subsidiary Guarantee
          pursuant to the "Limitation on Issuances of Guarantees by
          Restricted Subsidiaries" covenant described above or Indebtedness
          of any other Restricted Subsidiary, in each case owing to a
          Person other than the Company or any of its Restricted
          Subsidiaries or (B) invest an equal amount, or the amount not so
          applied pursuant to clause (A) (or enter into a definitive
          agreement committing to so invest within 12 months after the date
          of such agreement), (x) in property or assets (other than current
          assets) of a nature or type or that are used in a business (or in
          a Person (other than a natural person) having property and assets
          of a nature or type, or engaged in a business) similar or related
          to the nature or type of the property and assets of, or the
          business of, the Company and its Restricted Subsidiaries existing
          on the date of such investment (as determined in good faith by
          the Board of Directors, whose determination shall be conclusive
          and evidenced by a Board Resolution) or (y) in property or assets
          (other than current assets) related to the Telecommunications
          Business, including, without limitation, telecommunications
          switches and related equipment, services, leases, licenses,
          capacity and rights-of-use, (or in a person (other than a natural
          person) having property or assets related to the
          Telecommunications Business, including, without limitation,
          telecommunications switches and related equipment, services,
          leases, licenses, capacity and rights-of-use) and (ii) apply (no
          later than the end of the 12-month period referred to in clause
          (i)) such excess Net Cash Proceeds (to the extent not applied
          pursuant to clause (i)) as provided in the following paragraph of
          this "Limitation on Asset Sales" covenant. The amount of such
          excess Net Cash Proceeds required to be applied (or to be
          committed to be applied) during such 12-month period as set forth
          in clause (i) of the preceding sentence and not applied as so
          required by the end of such period shall constitute "Excess
          Proceeds."

               If, as of the first day of any calendar month, the aggregate
          amount of Excess Proceeds not theretofore subject to an Offer to
          Purchase pursuant to this "Limitation on Asset Sales" covenant
          totals at least $20.0 million, the Company must commence, not
          later than the fifteenth Business Day of such month, and
          consummate an Offer to Purchase from the Holders on a pro rata
          basis, and an offer to purchase any outstanding Indebtedness with
          similar provisions requiring the Company to make an offer to
          purchase such Indebtedness, in an aggregate principal amount at
          maturity of New Notes (or, if prior to February 15, 2003, the
          Accreted Value of the New Notes) and such pari passu Indebtedness
          equal to (A) with respect to the New Notes, the product of such
          Excess Proceeds multiplied by a fraction, the numerator of which
          is the outstanding principal amount at maturity of the New Notes
          (or, if prior to February 15, 2003, the Accreted Value of the New
          Notes) and the denominator of which is the sum of the outstanding


                                      -79-
     <PAGE>


          principal amount at maturity of the New Notes (or, if prior to
          February 15, 2003, the Accreted Value of the New Notes) and such
          pari passu Indebtedness (the product hereinafter referred to as
          the "New Note Amount"), and (B) with respect to the pari passu
          Indebtedness, the excess of the Excess Proceeds over the New Note
          Amount, at a purchase price equal to 100% of the Accreted Value
          of the New Notes or such pari passu Indebtedness, as the case may
          be, on the relevant Payment Date or such other date set forth in
          the documentation governing the pari passu Indebtedness, plus, in
          each case, accrued interest (if any) to the Payment Date or such
          other date set forth in the documentation governing the pari
          passu Indebtedness. If the aggregate purchase price of the New
          Notes tendered pursuant to the Offer to Purchase is less than the
          Excess Proceeds, the remaining will be available for use by the
          Company for general corporate purposes. Upon the consummation of
          any Offer to Purchase in accordance with the terms of the
          Indenture, the amount of Net Cash Proceeds from Asset Sales
          subject to any future Offer to Purchase shall be deemed to be
          zero.

          REPURCHASE OF NEW NOTES UPON A CHANGE OF CONTROL

               The Company must commence, within 30 days of the occurrence
          of a Change of Control, and consummate an Offer to Purchase for
          all New Notes then outstanding, at a purchase price equal to 101%
          of the Accreted Value thereof on the relevant Payment Date, plus
          accrued interest (if any) to the Payment Date.

               There can be no assurance that the Company will have
          sufficient funds available at the time of any Change of Control
          to make any debt payment (including repurchases of New Notes)
          required by the foregoing covenant (as well as may be contained
          in other securities of the Company which might be outstanding at
          the time) . The above covenant requiring the Company to
          repurchase the New Notes will, unless consents are obtained,
          require the Company to repay all indebtedness then outstanding
          which by its terms would prohibit such New Note repurchase,
          either prior to or concurrently with such Note repurchase.

          COMMISSION REPORTS AND REPORTS TO HOLDERS

               Whether or not the Company is required to file reports with
          the Commission, the Company shall deliver for filing with the
          Commission all such reports and other information as it would be
          required to file with the Commission by Sections 13(a) or 15(d)
          under the Securities Exchange Act of 1934 if it were subject
          thereto. All references herein to reports "filed" with the
          Commission shall be deemed to refer to the reports then most
          recently delivered for filing, whether or not accepted by the
          Commission. The Company shall supply the Trustee and each Holder
          or shall supply to the Trustee for forwarding to each such
          Holder, without cost to such Holder, copies of such reports and
          other information. 

          EVENTS OF DEFAULT

               The following events will be defined as "Events of Default"
          in the Indenture: (a) default in the payment of principal of (or
          premium, if any, on) any New Note when the same becomes due and
          payable at maturity, upon acceleration, redemption or otherwise;
          (b) default in the payment of interest on any New Note when the
          same becomes due and payable, and such default continues for a
          period of 30 days; (c) the Company defaults in the performance of
          or breaches any other covenant or agreement of the Company in the
          Indenture or under the New Notes (other than a default specified
          in clause (a) or (b) above) and such default or breach continues
          for a period of 30 consecutive days after written notice by the
          Trustee or the Holders of 25% or more in aggregate principal
          amount of the New Notes; (d) the Company shall have failed to
          make or consummate an Offer to Purchase in accordance with the
          "Limitation on Asset Sales" covenant above; (e) the Company shall
          have failed to make or consummate an Offer to Purchase in
          accordance with the provisions of "Repurchase of New Notes upon a
          Change of Control" above; (f) there occurs with respect to any
          issue or issues of Indebtedness of the Company or any Significant
          Subsidiary having an outstanding principal amount of $10 million
          or more in the aggregate for all such issues of all such Persons,
          whether such Indebtedness now exists or shall hereafter be
          created, (I) an event of default that has caused the holder


                                     -80-
     <PAGE>


          thereof to declare such Indebtedness to be due and payable prior
          to its Stated Maturity and such Indebtedness has not been
          discharged in full or such acceleration has not been rescinded or
          annulled within 30 days of such acceleration and/or (II) the
          failure to make a principal payment at the final (but not any
          interim) fixed maturity and such defaulted payment shall not have
          been made, waived or extended within 30 days of such payment
          default; (g) any final judgment or order (not covered by
          insurance) for the payment of money in excess of $10 million in
          the aggregate (treating any deductibles, self-insurance or
          retention as not so covered) shall be rendered against the
          Company or any Significant Subsidiary and shall not be paid or
          discharged, and there shall be any period of 30 consecutive days
          following entry of the final judgment or order that causes the
          aggregate amount for all such final judgments or orders
          outstanding and not paid or discharged against the Company or any
          of its Significant Subsidiaries to exceed $10 million during
          which a stay of enforcement of such final judgment or order, by
          reason of a pending appeal or otherwise, shall not be in effect;
          (h) a court having jurisdiction in the premises enters a decree
          or order for (A) relief in respect of the Company or any
          Significant Subsidiary in an involuntary case under any
          applicable bankruptcy, insolvency or other similar law now or
          hereafter in effect, (B) appointment of a receiver, liquidator,
          assignee, custodian, trustee, sequestrator or similar official of
          the Company or any Significant Subsidiary or for all or
          substantially all of the property and assets of the Company or
          any Significant Subsidiary or (C) the winding up or liquidation
          of the affairs of the Company or any Significant Subsidiary and,
          in each case, such decree or order shall remain unstayed and in
          effect for a period of 30 consecutive days; or (i) the Company or
          any Significant Subsidiary (A) commences a voluntary case under
          any applicable bankruptcy, insolvency or other similar law now or
          hereafter in effect, or consents to the entry of an order for
          relief in an involuntary case under any such law, (B) consents to
          the appointment of or taking possession by a receiver,
          liquidator, assignee, custodian, trustee, sequestrator or similar
          official of the Company or any Significant Subsidiary or for all
          or substantially all of the property and assets of the Company or
          any Significant Subsidiary or (C) effects any general assignment
          for the benefit of creditors.

               If an Event of Default (other than an Event of Default
          specified in clause (h) or (i) above that occurs with respect to
          the Company) occurs and is continuing under the Indenture, the
          Trustee or the Holders of at least 25% in aggregate principal
          amount of the New Notes, then outstanding, by written notice to
          the Company (and to the Trustee if such notice is given by the
          Holders), may, and the Trustee at the request of such Holders
          shall, declare the Accreted Value of, premium, if any, and
          accrued interest on the New Notes to be immediately due and
          payable. Upon a declaration of acceleration, such Accreted Value
          of, premium, if any, and accrued interest shall be immediately
          due and payable. In the event of a declaration of acceleration
          because an Event of Default set forth in clause (f) above has
          occurred and is continuing, such declaration of acceleration
          shall be automatically rescinded and annulled if the event of
          default triggering such Event of Default pursuant to clause (f)
          shall be remedied or cured by the Company or the relevant
          Significant Subsidiary or waived by the holders of the relevant
          Indebtedness within 60 days after the declaration of acceleration
          with respect thereto. If an Event of Default specified in clause
          (h) or (i) above occurs with respect to the Company, the Accreted
          Value of, premium, if any, and accrued interest on the New Notes
          then outstanding shall ipso facto become and be immediately due
          and payable without any declaration or other act on the part of
          the Trustee or any Holder. The Holders of at least a majority in
          principal amount of the outstanding New Notes by written notice
          to the Company and to the Trustee, may waive all past defaults
          and rescind and annul a declaration of acceleration and its
          consequences if (i) all existing Events of Default, other than
          the nonpayment of the Accreted Value of, premium, if any, and
          interest on the New Notes that have become due solely by such
          declaration of acceleration, have been cured or waived and (ii)
          the rescission would not conflict with any judgment or decree of
          a court of competent jurisdiction. For information as to the
          waiver of defaults, see "-- Modification and Waiver."

               The Holders of at least a majority in aggregate principal
          amount of the outstanding New Notes may direct the time, method
          and place of conducting any proceeding for any remedy available
          to the Trustee or exercising any trust or power conferred on the
          Trustee. However, the Trustee may refuse to follow any direction
          that conflicts with law or the Indenture, that may involve the
          Trustee in personal liability, or that the Trustee determines in
          good faith may be unduly prejudicial to the rights of Holders of
          Notes not joining in the giving of such direction and may take
          any other action it deems proper that is not inconsistent with
          any such direction received from Holders of Notes. A Holder may

                                     -81-
      <PAGE>


          not pursue any remedy with respect to the Indenture or the Notes
          unless: (i) the Holder gives the Trustee written notice of a
          continuing Event of Default; (ii) the Holders of at least 25% in
          aggregate principal amount of outstanding New Notes make a
          written request to the Trustee to pursue the remedy; (iii) such
          Holder or Holders offer the Trustee indemnity satisfactory to the
          Trustee against any costs, liability or expense; (iv) the Trustee
          does not comply with the request within 60 days after receipt of
          the request and the offer of indemnity; and (v) during such 60-
          day period, the Holders of a majority in aggregate principal
          amount of the outstanding New Notes do not give the Trustee a
          direction that is inconsistent with the request. However, such
          limitations do not apply to the right of any Holder of a New Note
          to receive payment of the principal of, premium, if any, or
          interest on, such New Note or to bring suit for the enforcement
          of any such payment, on or after the due date expressed in the
          New Notes, which right shall not be impaired or affected without
          the consent of the Holder.

               The Indenture will require certain officers of the Company
          to certify, on or before a date not more than 90 days after the
          end of each fiscal year, that a review has been conducted of the
          activities of the Company and its Restricted Subsidiaries and the
          Company's and its Restricted Subsidiaries' performance under the
          Indenture and that the Company has fulfilled all obligations
          thereunder, or, if there has been a default in the fulfillment of
          any such obligation, specifying each such default and the nature
          and status thereof. The Company will also be obligated to notify
          the Trustee of any default or defaults in the performance of any
          covenants or agreements under the Indenture.

          CONSOLIDATION, MERGER AND SALE OF ASSETS

               The Company will not consolidate with, merge with or into,
          or sell, convey, transfer, lease or otherwise dispose of all or
          substantially all of its property and assets (as an entirety or
          substantially an entirety in one transaction or a series of
          related transactions) to, any Person or permit any Person to
          merge with or into the Company unless: (i) the Company shall be
          the continuing Person, or the Person (if other than the Company)
          formed by such consolidation or into which the Company is merged
          or that acquired or leased such property and assets of the
          Company shall be a corporation organized and validly existing
          under the laws of the United States of America or any
          jurisdiction thereof and shall expressly assume, by a
          supplemental indenture, executed and delivered to the Trustee,
          all of the obligations of the Company on all of the New Notes and
          under the Indenture; (ii) immediately after giving effect to such
          transaction, no Default or Event of Default shall have occurred
          and be continuing; (iii) immediately after giving effect to such
          transaction on a pro forma basis, (A) the Company or any Person
          becoming the successor obligor of the Notes, as the case may be,
          shall have a Consolidated Net Worth equal to or greater than the
          Consolidated Net Worth of the Company immediately prior to such
          transaction or (B) the Company or any Person becoming the
          successor obligor of the Notes, as the case may be, shall have a
          Consolidated Leverage Ratio no more than the greater of (I) 6:1
          and (II) the Consolidated Leverage Ratio of the Company
          immediately prior to such transaction; provided that this clause
          (iii) shall not apply to a consolidation or merger with or into a
          Wholly Owned Restricted Subsidiary with a positive net worth;
          provided that, in connection with any such merger or
          consolidation, no consideration (other than Capital Stock (other
          than Disqualified Stock) in the surviving Person or the Company)
          shall be issued or distributed to the stockholders of the
          Company; and (iv) the Company delivers to the Trustee an
          Officers' Certificate (attaching the arithmetic computations to
          demonstrate compliance with clause (iii) above) and Opinion of
          Counsel, in each case stating that such consolidation, merger or
          transfer and such supplemental indenture complies with this
          provision and that all conditions precedent provided for herein
          relating to such transaction have been complied with; provided,
          however, that clause (iii) above does not apply if, in the good
          faith determination of the Board of Directors of the Company,
          whose determination shall be evidenced by a Board Resolution, the
          principal purpose of such transaction is to change the state of
          incorporation of the Company; and that any such transaction shall
          not have as one of its purposes the evasion of the foregoing
          limitations.

          DEFEASANCE

               Defeasance and Discharge. The Indenture will provide that
          the Company will be deemed to have paid and will be discharged
          from any and all obligations in respect of the New Notes on the


                                     -82-
     <PAGE>

      
          123rd day after the deposit referred to below, and the provisions
          of the Indenture will no longer be in effect with respect to the
          New Notes (except for, among other matters, certain obligations
          to register the transfer or exchange of the New Notes, to replace
          stolen, lost or mutilated New Notes, to maintain paying agencies
          and to hold monies for payment in trust) if, among other things,
          (A) the Company has deposited with the Trustee, in trust, money
          and/or U.S. Government Obligations that through the payment of
          interest and principal in respect thereof in accordance with
          their terms will provide money in an amount sufficient to pay the
          principal of, premium, if any, and accrued interest on the New
          Notes on the Stated Maturity of such payments in accordance with
          the terms of the Indenture and the New Notes, (B) the Company has
          delivered to the Trustee (i) either (x) an Opinion of Counsel to
          the effect that Holders will not recognize income, gain or loss
          for federal income tax purposes as a result of the Company's
          exercise of its option under this "Defeasance" provision and will
          be subject to federal income tax on the same amount and in the
          same manner and at the same times as would have been the case if
          such deposit, defeasance and discharge had not occurred, which
          Opinion of Counsel must be based upon (and accompanied by a copy
          of) a ruling of the Internal Revenue Service to the same effect
          unless there has been a change in applicable federal income tax
          law after the Closing Date such that a ruling is no longer
          required or (y) a ruling directed to the Trustee received from
          the Internal Revenue Service to the same effect as the
          aforementioned Opinion of Counsel and (ii) an Opinion of Counsel
          to the effect that the creation of the defeasance trust does not
          violate the Investment Company Act of 1940 and after the passage
          of 123 days following the deposit, the trust fund will not be
          subject to the effect of Section 547 of the United States
          Bankruptcy Code or Section 15 of the New York Debtor and Creditor
          Law, (C) immediately after giving effect to such deposit on a pro
          forma basis, no Event of Default, or event that after the giving
          of notice or lapse of time or both would become an Event of
          Default, shall have occurred and be continuing on the date of
          such deposit or during the period ending on the 123rd day after
          the date of such deposit, and such deposit shall not result in a
          breach or violation of, or constitute a default under, any other
          agreement or instrument to which the Company or any of its
          Subsidiaries is a party or by which the Company or any of its
          Subsidiaries is bound and (D) if at such time the New Notes are
          listed on a national securities exchange, the Company has
          delivered to the Trustee an Opinion of Counsel to the effect that
          the New Notes will not be delisted as a result of such deposit,
          defeasance and discharge, provided that if simultaneously with
          the deposit of the money and/or U.S. Government Obligations
          referred to in (A) above, the Company has caused an irrevocable,
          transferrable, standby letter of credit to be issued by a bank
          with capital and surplus exceeding the principal amount of the
          New Notes then outstanding, expiring not earlier than 180 days
          from its issuance, in favor of the Trustee which permits the
          Trustee to draw an amount equal to the principal, premium, if
          any, and accrued interest on the New Notes through the expiry
          date of the letter of credit, then the Company will be deemed to
          have paid and discharged any and all obligations in respect of
          the New Notes on the date of the deposit and issuance of the
          letter of credit.

               Defeasance of Certain Covenants and Certain Events of
          Default. The Indenture further will provide that the provisions
          of the Indenture will no longer be in effect with respect to
          clause (iii) under "Consolidation, Merger and Sale of Assets" and
          all the covenants described herein under "Covenants," clause (c)
          under "Events of Default" with respect to such other covenants
          and clauses (c), (d), (e), (f) and (g) under "Events of Default"
          shall be deemed not to be Events of Default upon, among other
          things, the deposit with the Trustee, in trust, of money and/or
          U.S. Government Obligations that through the payment of interest
          and principal in respect thereof in accordance with their terms
          will provide money in an amount sufficient to pay the principal
          of, premium, if any, and accrued interest on the New Notes on the
          Stated Maturity of such payments in accordance with the terms of
          the Indenture and the New Notes, the satisfaction of the
          provisions described in clauses (B)(ii), (C) and (D) of the
          preceding paragraph and the delivery by the Company to the
          Trustee of an Opinion of Counsel to the effect that, among other
          things, the Holders will not recognize income, gain or loss for
          federal income tax purposes as a result of such deposit and
          defeasance of certain covenants and Events of Default and will be
          subject to federal income tax on the same amount and in the same
          manner and at the same times as would have been the case if such
          deposit and defeasance had not occurred.

               Defeasance and Certain Other Events of Default. In the event
          the Company exercises its option to omit compliance with certain
          covenants and provisions of the Indenture with respect to the New
          Notes as described in the immediately preceding paragraph and the
          New Notes are declared due and payable because of the occurrence


                                      -83-
     <PAGE>


          of an Event of Default that remains applicable, the amount of
          money and/or U.S. Government Obligations on deposit with the
          Trustee will be sufficient to pay amounts due on the New Notes at
          the time of their Stated Maturity but may not be sufficient to
          pay amounts due on the New Notes at the time of the acceleration
          resulting from such Event of Default. However, the Company will
          remain liable for such payments.

          MODIFICATION AND WAIVER

               Modifications and amendments of the Indenture may be made by
          the Company and the Trustee with the consent of the Holders of
          not less than a majority in aggregate principal amount of the
          outstanding New Notes; provided, however, that no such
          modification or amendment may, without the consent of each Holder
          affected thereby, (i) change the Stated Maturity of the principal
          of, or any installment of interest on, any New Note, (ii) reduce
          the Accreted Value or principal amount of, or premium, if any, or
          interest on, any New Note, (iii) change the place or currency of
          payment of principal of, or premium, if any, or interest on, any
          New Note, (iv) impair the right to institute suit for the
          enforcement of any payment on or after the Stated Maturity (or,
          in the case of a redemption, on or after the Redemption Date) of
          any New Note, (v) reduce the above-stated percentage of
          outstanding New Notes the consent of whose Holders is necessary
          to modify or amend the Indenture, (vi) waive a default in the
          payment of principal of, premium, if any, or interest on the New
          Notes or (vii) reduce the percentage or aggregate principal
          amount of outstanding New Notes the consent of whose Holders is
          necessary for waiver of compliance with certain provisions of the
          Indenture or for waiver of certain defaults.

          NO PERSONAL LIABILITY OF INCORPORATORS, STOCKHOLDERS, OFFICERS,
          DIRECTORS, OR EMPLOYEES

               The Indenture provides that no recourse for the payment of
          the principal of, premium, if any, or interest on any of the New
          Notes or for any claim based thereon or otherwise in respect
          thereof, and no recourse under or upon any obligation, covenant
          or agreement of the Company in the Indenture, or in any of the
          New Notes or because of the creation of any Indebtedness
          represented thereby, shall be had against any incorporator,
          stockholder, officer, director, employee or controlling person of
          the Company or of any successor Person thereof. Each Holder, by
          accepting the New Notes, waives and releases all such liability.

          CONCERNING THE TRUSTEE
           
               The Indenture provides that, except during the continuance
          of a Default, the Trustee will not be liable, except for the
          performance of such duties as are specifically set forth in such
          Indenture. If an Event of Default has occurred and is continuing,
          the Trustee will use the same degree of care and skill in its
          exercise as a prudent person would exercise under the
          circumstances in the conduct of such person's own affairs.


                                     -84-
     <PAGE>

           
               The Indenture and provisions of the Trust Indenture Act
          incorporated by reference therein contain limitations on the
          rights of the Trustee, should it become a creditor of Holdings or
          the Guarantor, to obtain payment of claims in certain cases or to
          realize on certain property received by it in respect of any such
          claims, as security or otherwise. The Trustee is permitted to
          engage in other transactions; provided, however, that if it
          acquires any conflicting interest, it must eliminate such
          conflict or resign. 

          BOOK ENTRY; DELIVERY AND FORM

               All of the Old Notes were originally issued in the form of
          one Global Note (the "Global Old Note").  The Global Old Note was
          deposited upon issuance with the Trustee as custodian for, and
          registered in the name of a nominee of, The Depository Trust
          Company ("DTC"), in New York, New York.  The New Notes will be
          issued in the form of one Global Note (the "Global New Note") and
          deposited upon issuance with and registered in the name of, or on
          behalf of, DTC or its nominee.

               So long as DTC, or its nominee, is the registered owner or
          holder of a Global New Note, DTC or such nominee, as the case may
          be, will be considered the sole owner or holder of the New Notes
          represented by such Global New Note for all purposes under the
          Indenture and the New Notes. No beneficial owner of an interest
          in a Global New Note will be able to transfer that interest
          except in accordance with DTC's applicable procedures, in
          addition to those provided for under the Indenture.

               Payments of the principal of, and interest on, a Global New
          Note will be made to DTC or its nominee, as the case may be, as
          the registered owner thereof. Neither the Company, the Trustee
          nor any Paying Agent will have any responsibility or liability
          for any aspect of the records relating to or payments made on
          account of beneficial ownership interests in a Global New Note or
          for maintaining, supervising or reviewing any records relating to
          such beneficial ownership interests.

               The Company expects that DTC or its nominee, upon receipt of
          any payment of principal or interest in respect of a Global New
          Note, will credit participants' accounts with payments in amounts
          proportionate to their respective beneficial interests in the
          principal amount of such Global New Note as shown on the records
          of DTC or its nominee. The Company also expects that payments by
          participants to owners of beneficial interests in such Global New
          Note held through such participants will be governed by standing
          instructions and customary practices, as is now the case with
          securities held for the accounts of customers registered in the
          names of nominees for such customers. Such payments will be the
          responsibility of such participants.

               Transfers between participants in DTC will be effected in
          the ordinary way in accordance with DTC rules and will be settled
          in same-day funds. Transfers between participants in Euroclear &
          Cedel Bank will be effected in the ordinary way in accordance
          with their respective rules and operating procedures.

               New Notes that are issued as described below will be issued
          in the form of registered definitive certificates (the
          "Certificated New Notes"). Such Certificated New Notes may,
          unless the applicable Global New Note has previously been
          exchanged for Certificated New Notes, be exchanged for an
          interest in the applicable Global New Note representing the
          principal amount of Old Notes being transferred.

               The Company expects that DTC will take any action permitted
          to be taken by a holder of New Notes (including the presentation
          of New Notes for exchange as described below) only at the
          direction of one or more participants to whose account the DTC
          interests in a Global New Note is credited and only in respect of
          such portion of the aggregate principal amount of New Notes as to
          which such participant or participants has or have given such
          direction. However, if there is an Event of Default under the New
          Notes, DTC will exchange the applicable Global New Note for
          Certificated New Notes, which it will distribute to its
          participants and which may be legended as set forth under the
          heading "Transfer Restrictions."


                                     -85-
     <PAGE>


               The Company understands that: DTC is a limited purpose trust
          company organized under the laws of the State of New York, a
          "banking organization" within the meaning of New York Banking
          Law, a member of the Federal Reserve System, a "clearing
          corporation" within the meaning of the Uniform Commercial Code
          and a "Clearing Agency" registered pursuant to the provisions of
          Section 17A of the Exchange Act. DTC was created to hold
          securities for its participants and facilitate the clearance and
          settlement of securities transactions between participants
          through electronic book-entry changes in accounts of its
          participants, thereby eliminating the need for physical movement
          of certificates and certain other organizations. Indirect access
          to the DTC system is available to others such as banks, brokers,
          dealers and trust companies that clear through or maintain a
          custodial relationship with a participant, either directly or
          indirectly ("indirect participants").

               Although DTC is expected to follow the foregoing procedures
          in order to facilitate transfers of interests in a Global New
          Note among participants of DTC, it is under no obligation to
          perform or continue to perform such procedures, and such
          procedures may be discontinued at any time. Neither the Company
          nor the Trustee will have any responsibility for the performance
          by DTC or its participants or indirect participants of its
          obligations under the rules and procedures governing their
          operations.

               If DTC is at any time unwilling or unable to continue as a
          depositary for the Global New Notes and a successor depositary is
          not appointed by the Company within 90 days, the Company will
          issue Certificated New Notes, which may bear the legend referred
          to under "Transfer Restrictions," in exchange for the Global New
          Notes. Holders of an interest in a Global New Note may receive
          Certificated New Notes, which may bear the legend referred to
          under "Transfer Restrictions," in accordance with the DTC's rules
          and procedures in addition to those provided for under the
          Indenture.


                                      -86-
     <PAGE>


               CERTAIN UNITED STATES FEDERAL INCOME TAX CONSIDERATIONS

               The following summary describes the material anticipated
          federal income tax consequences of the purchase, ownership and
          disposition of the New Notes. Except where noted, this summary
          deals only with New Notes held as capital assets within the
          meaning of Section 1221 of the Internal Revenue Code of 1986, as
          amended (the "Code"), by United States Holders (as defined
          below), and does not deal with special situations, such as those
          of dealers in securities or currencies, financial institutions,
          life insurance companies, tax exempt organizations, persons
          holding New Notes as a part of a hedging or conversion
          transaction or a straddle or United States Holders whose
          "functional currency" is not the U.S. dollar. Furthermore, the
          discussion below is based upon the provisions of the Code and
          Treasury regulations, administrative and judicial decisions
          thereunder as of the date hereof, and such authorities may be
          repealed, revoked or modified with possible retroactive effect so
          as to result in federal income tax consequences different from
          those discussed below. ALL PROSPECTIVE PURCHASERS ARE ADVISED TO
          CONSULT THEIR OWN TAX ADVISORS REGARDING THE FEDERAL, STATE,
          LOCAL AND FOREIGN TAX CONSEQUENCES OF THE PURCHASE, OWNERSHIP AND
          DISPOSITION OF THE NEW NOTES.

          TAX CONSEQUENCES TO UNITED STATES HOLDERS

               As used herein, a "United States Holder" means a beneficial
          owner that is a citizen or resident of the United States, a
          corporation, partnership or other entity created or organized in
          or under the laws of the United States or any political
          subdivision thereof, an estate the income of which is subject to
          United States federal income taxation regardless of its source,
          or a trust the administration of which is subject to the primary
          supervision of a court within the United States and for which one
          or more U.S. persons have the authority to control all
          substantial decisions. An individual may, subject to certain
          exceptions, be deemed to be a resident (as opposed to a non-
          resident alien) of the United States by virtue of being present
          in the United States on at least 31 days in the calendar year and
          for an aggregate of at least 183 days during a three-year period
          ending in the current calendar year (counting for such purposes
          all of the days present in the current year, one-third of the
          days present in the immediately preceding year, and one-sixth of
          the days present in the second preceding year). A "Non-United
          States Holder" is a holder that is not a United States Holder.

          Exchange of Old Notes for New Notes

               The exchange of an Old Note by a United States Holder for a
          New Note should not constitute a taxable exchange. A United
          States Holder will have the same tax basis and holding period in
          the New Note as such Holder did in the Old Note. In addition, a
          United States Holder will have the same OID, market discount and
          acquisition premium (as described below) in the New Note as such
          Holder had in the Old Note.

          Payments of Interest on the New Notes

               The stated interest on a New Note will not be treated as
          interest for federal income tax purposes, but instead will be
          subject to the original issue discount ("OID") rules described
          below. Payments of stated interest on a New Note will not be
          separately included in income, but rather will be treated first
          as payments of previously accrued OID and then as payments of
          principal and consequently will reduce a United States Holder's
          basis in a New Note as described below under "-- Sale, Exchange
          or Redemption of New Notes."

          Original Issue Discount

               The New Notes are being issued with OID. The excess of a New
          Note's "stated redemption price at maturity" over its "issue
          price" will generally constitute OID for federal income tax
          purposes. The "issue price" of a debt instrument issued for cash
          is equal to the first price at which a substantial amount of such
          debt instruments are sold (excluding sales to bond houses and
          brokers). The "stated redemption price at maturity" of a debt
          instrument is the sum of its principal amount plus all other
          payments required thereunder, other than payments of "qualified


                                     -87-
     <PAGE>


          stated interest" (defined generally as stated interest that is
          unconditionally payable in cash or in property (other than the
          debt instruments of the issuer), at least annually at a single
          fixed rate that appropriately takes into account the length of
          intervals between payments).

               Because interest on the New Notes is not payable until
          August 15, 2003, the stated interest on the New Notes will not be
          treated as qualified stated interest. In addition, the New Notes
          are being issued at a price that is less than their stated
          principal amount. As a result, the New Notes will be treated as
          issued with OID equal to the excess of their stated redemption
          price at maturity (which will be equal to the sum of the
          principal amount plus all payments of stated interest) over their
          issue price.

               United States Holders of the New Notes should be aware that
          they generally must include OID in gross income for federal
          income tax purposes on an annual basis under a constant yield
          accrual method, regardless of their method of accounting. As a
          result, United States Holders will include OID in income in
          advance of the receipt of cash attributable to that income.
          However, United States Holders of New Notes generally will not be
          required to include separately in income cash interest payments
          received on the New Notes. The Company will report to United
          States Holders of New Notes on a timely basis the reportable
          amount of OID based on its understanding of applicable law.

               The amount of OID includible in income by the initial United
          States Holder of a New Note is the sum of the "daily portions" of
          OID with respect to the New Note for each day during the taxable
          year or portion of the taxable year in which such United States
          Holder held such New Note. The daily portion is determined by
          allocating to each day in any "accrual period" a pro rata portion
          of the OID allocable to that accrual period. The "accrual period"
          for a New Note may be of any length and may vary in length over
          the term of the New Note, provided that each accrual period is no
          longer than one year and each scheduled payment of principal or
          interest occurs on the first day or the final day of an accrual
          period. The amount of OID allocable to any accrual period is an
          amount equal to the excess, if any, of (a) the product of the New
          Note's adjusted issue price at the beginning of such accrual
          period and its yield to maturity (determined on the basis of
          compounding at the close of each accrual period and properly
          adjusted for the length of the accrual period) over (b) the
          amount of any qualified stated interest allocable to the accrual
          period. OID allocable to a final accrual period is the difference
          between the amount payable at maturity (other than a payment of
          qualified stated interest) and the adjusted issue price at the
          beginning of the final accrual period. The yield of a New Note
          is, rounded to two decimal places, 10.00%. The "adjusted issue
          price" of a New Note at the beginning of any accrual period is
          equal to its issue price increased by the accrued OID for each
          prior accrual period (determined without regard to the
          amortization of any acquisition or bond premium, as described
          below) and reduced by any payments made on such New Note (other
          than qualified stated interest) on or before the first day of the
          accrual period.

               The New Notes may be redeemed prior to their Stated Maturity
          at the option of the Company. For purposes of computing the yield
          of such instrument, the Company will be deemed to exercise or not
          exercise its option to redeem the New Notes in a manner that
          minimizes the yield on the New Notes. It is not anticipated that
          the Company's ability to redeem prior to stated maturity will
          affect the yield of the New Notes. Consequently, the Company does
          not intend to treat the redemption option as affecting the
          computation of the yield to maturity of the New Notes.

               In the event of a change of control, the Company will be
          required to offer to repurchase all of the New Notes. The right
          of holders to require repurchase upon a Change of Control will
          not affect the yield or maturity date of the New Notes provided
          that, based on all the facts and circumstances as of the issue
          date, the payment schedule on such New Notes that does not
          reflect a change of control is significantly more likely than not
          to occur. The Company does not intend to treat the change of
          control provisions of the New Notes as affecting the computation
          of the yield to maturity of the New Notes.


                                     -88-
     <PAGE>


          Market Discount

               With respect to a United States Holder who purchased an Old
          Note at original issuance, such instrument, and, accordingly, a
          New Note held by such holder, will not be treated as issued with
          "market discount" for federal income tax purposes unless the Old
          Note was purchased for less than its issue price and the
          difference between the purchase price and the issue price is
          greater than a specified de minimis amount. With respect to a
          subsequent United States Holder who purchased an Old Note or who
          purchases a New Note, such Note will not be treated as issued
          with market discount for federal income tax purposes unless such
          Note was purchased for less than its stated redemption price at
          maturity and the difference between the purchase price and the
          stated redemption price at maturity is greater than a specified
          de minimis amount. Under the market discount rules, a United
          States Holder holding a Note with market discount will be
          required to treat any principal payment on an Old Note or a New
          Note, or any gain on the sale, exchange, retirement or other
          disposition of such Note, as ordinary income to the extent of the
          market discount which has not previously been included in income
          and is treated as having accrued on such Note at the time of such
          payment or disposition. In addition, the United States Holder may
          be required to defer, until the maturity of such Note or its
          earlier disposition in a taxable transaction, the deduction of
          all or a portion of the interest expense on any indebtedness
          incurred or continued to purchase or carry such Note.

               Any market discount will be considered to accrue ratably
          during the period from the date of acquisition to the maturity
          date of such Note, unless the United States Holder elects to
          accrue on a constant interest rate method. A United States Holder
          of Note may elect to include market discount in income currently
          as it accrues (on either a ratable or constant interest rate
          method), in which case the rule described above regarding
          deferral of interest deductions will not apply. This election to
          include market discount in income currently, once made, applies
          to all market discount obligations acquired on or after the first
          taxable year to which the election applies and may not be revoked
          without the consent of the IRS.

          Acquisition Premium

               A United States Holder that purchases a New Note for an
          amount that is greater than its adjusted issue price but equal to
          or less than the sum of all amounts payable on the New Note after
          the purchase date, will be considered to have purchased such New
          Note at an "acquisition premium." Under the acquisition premium
          rules, the amount of OID, if any, which such United States Holder
          must include in its gross income with respect to such New Note
          for any taxable year will be reduced by the portion of such
          acquisition premium properly allocable to such year.

          Sale, Exchange or Redemption of New Notes

               Upon the sale, exchange or redemption of a New Note, a
          United States Holder will recognize gain or loss equal to the
          difference between the amount realized upon the sale, exchange or
          redemption and such United States Holder's adjusted tax basis of
          the New Note. A United States Holder's tax basis in a New Note
          will, in general, be the United States Holder's cost therefor,
          increased by OID and market discount previously included in
          income by the United States Holder with respect to the New Notes
          and reduced by any principal and stated interest payments on the
          New Notes. Such gain or loss will be capital gain or loss.

               The Taxpayer Relief Act of 1997 includes substantial changes
          to the federal taxation of capital gains recognized by certain
          noncorporate taxpayers, such as individuals, including a 20%
          maximum tax rate for certain gains from the sale of capital
          assets held for more than 18 months. The deduction of capital
          losses is subject to certain limitations.


                                     -89-
     <PAGE>


          Information Reporting and Backup Withholding

               In general, information reporting requirements will apply to
          certain payments of principal and OID and to the proceeds of
          sales of New Notes made to United States Holders other than
          certain exempt recipients (such as corporations). A 31% backup
          withholding tax will apply to such payments if the United States
          Holder (i) fails to provide a taxpayer identification number,
          (ii) furnishes an incorrect TIN, (iii) is notified by the
          Internal Revenue Service ("IRS") that it has failed to properly
          report payments of interest and dividends or (iv) under certain
          circumstances, fails to certify, under penalty of perjury, that
          it has furnished a correct TIN and has not been notified by the
          IRS that it is subject to backup withholding. In the case of
          interest paid after December 31, 1999, a United States Holder
          generally will be subject to backup withholding at a 31% rate
          unless certain IRS certification procedures are complied with
          directly or through an intermediary.

               The Company will furnish annually to the IRS and to record
          holders of the New Notes (other than with respect to certain
          exempt holders) information relating to the OID accruing during
          the calendar year. The annual accruals of OID included in such
          information will be based on the amount of OID that would have
          accrued to a United States Holder who acquired the Old Note at
          original issue.

               Any amounts withheld under the backup withholding rules will
          be allowed as a refund or a credit against such United States
          Holder's U.S. federal income tax liability provided the required
          information is furnished to the IRS.

          TAX CONSEQUENCES TO NON-UNITED STATES HOLDERS

          Interest and OID on New Notes

               Subject to the discussion below concerning backup
          withholding, no withholding of United States federal income tax
          will be required with respect to the payment by the Company or
          any paying agent of principal or interest (which for purposes of
          this discussion includes OID) on a New Note owned by a Non-United
          States Holder, provided that the beneficial owner (i) does not
          actually or constructively own 10% or more of the total combined
          voting power of all classes of stock of the Company entitled to
          vote within the meaning of Section 871(h)(3) of the Code and the
          regulations thereunder, (ii) is not a controlled foreign
          corporation related, directly or indirectly, to the Company
          through stock ownership, (iii) is not a bank whose receipt of
          interest on a New Note is described in Section 881(c)(3)(A) of
          the Code and (iv) satisfies the statement requirement (described
          generally below) set forth in Section 871(h) and Section 881(c)
          of the Code and the regulations thereunder.

               To satisfy the requirement referred to in (iv) above, the
          beneficial owner of such New Note, or a financial institution
          holding the New Note on behalf of such owner, must provide, in
          accordance with specified procedures, the Company or its paying
          agent with a statement to the effect that the beneficial owner is
          not a U.S. person. These requirements will be met if (1) the
          beneficial owner provides his name and address, and certifies,
          under penalties of perjury, that he is not a U.S. person (which
          certification may be made on an IRS Form W-8 (or successor form))
          or (2) a financial institution holding the New Note on behalf of
          the beneficial owner certifies, under penalties of perjury, that
          such statement has been received by it and furnishes a paying
          agent with a copy thereof.

               In the event that any of the above requirements are not
          satisfied, the Company will nonetheless not withhold federal
          income tax on interest paid to or accrued by a Non-United States
          Holder if it receives IRS Form 4224 (or, after December 31, 1999,
          a Form W-8) from that Non-United States Holder, establishing that
          such income is effectively connected with the conduct of a trade
          or business in the United States, unless the Company has
          knowledge to the contrary. Interest (including OID) paid to a
          Non-United States Holder (other than a partnership) that is
          effectively connected with the conduct by the holder of a trade
          or business in the United States is generally taxed at the
          graduated rates that are applicable to United States persons. In
          the case of a Non-United States Holder that is a corporation,
          such effectively connected income may also be subject to the


                                      -90-
     <PAGE>


          United States federal branch profits tax (which is generally
          imposed on a foreign corporation on the deemed repatriation from
          the United States of effectively connected earnings and profits)
          at a 30% rate (unless the rate is reduced or eliminated by an
          applicable income tax treaty and the holder is a qualified
          resident of the treaty country). Special rules may apply to
          interest paid to or accrued by a partnership with foreign
          partners (i.e., persons who would be Non-United States Holders if
          they held the New Notes directly).

          Sale, Exchange or Redemption of New Notes

               A Non-United States Holder will generally not be subject to
          United States federal income tax with respect to gain recognized
          on a sale, exchange or redemption of New Notes unless (i) the
          gain is effectively connected with a trade or business of the
          Non-United States Holder in the United States, (ii) in the case
          of a Non-United States Holder who is an individual and holds the
          New Notes as a capital asset, such holder is present in the
          United States for 183 or more days in the taxable year of the
          sale or other disposition and certain other conditions are met,
          or (iii) the Non-United States Holder is subject to tax pursuant
          to certain provisions of the Code applicable to United States
          expatriates.

               Gains derived by a Non-United States Holder (other than a
          partnership) from the sale or other disposition of New Notes that
          are effectively connected with the conduct by the Holder of a
          trade or business in the United States are generally taxed at the
          graduated rates that are applicable to United States persons. In
          the case of a Non-United States Holder that is a corporation,
          such effectively connected income may also be subject to the
          United States branch profits tax. If an individual Non-United
          States Holder falls under clause (ii) above, he will be subject
          to a flat 30% tax on the gain derived from the sale or other
          disposition, which may be offset by United States capital losses
          recognized within the same taxable year as such sale or other
          disposition (notwithstanding the fact that he is not considered a
          resident of the United States). Special rules may apply to the
          sale, exchange or redemption of New Notes by partnerships with
          foreign partners (i.e., persons who would be Non-United States
          Holders if they held the New Notes directly).

          Federal Estate Tax

               A New Note beneficially owned by an individual who at the
          time of death is a Non-United States Holder will not be subject
          to United States federal estate tax as a result of such
          individual's death, provided that such individual does not
          actually or constructively own 10% or more of the total combined
          voting power of all classes of stock of the Company entitled to
          vote within the meaning of Section 871(h)(3) of the Code and
          provided that the interest payments with respect to such New Note
          would not have been, if received at the time of such individual's
          death, effectively connected with the conduct of a United States
          trade or business by such individual.

          Information Reporting and Backup Withholding

               No information reporting or backup withholding will be
          required with respect to payments made by the Company or any
          paying agent to Non-United States Holders if a statement
          described in (iv) under "Tax Consequences to Non-United States
          Holders -- Interest and OID on New Notes" has been received and
          the payor does not have actual knowledge that the beneficial
          owner is a United States person.

               Information reporting and backup withholding will not apply
          if payments of OID on a New Note are paid or collected by a
          custodian, nominee, or agent on behalf of the beneficial owner of
          such New Note if such custodian, nominee, or agent has
          documentary evidence in its records that the beneficial owner is
          not a U.S. person and certain other conditions are met, or the
          beneficial owner otherwise establishes an exemption.

               Payments on the sale, exchange or other disposition of a New
          Note made to or through a foreign office of a broker generally
          will not be subject to backup withholding. However, if the broker
          is a United States person, a controlled foreign corporation for
          United States federal income tax purposes, a foreign person 50


                                     -91-
     <PAGE>


          percent or more of whose gross income is effectively connected
          with a United States trade or business for a specified three year
          period, or (with respect to payments after December 31, 1999) a
          foreign partnership with certain connections to the United
          States, such payments will be subject to information reporting
          unless the broker has in its records documentary evidence that
          the beneficial owner is not a United States person and certain
          other conditions are met, or the beneficial owner otherwise
          establishes an exemption. Backup withholding may apply to any
          payment that such broker is required to report if the broker has
          actual knowledge that the payee is a United States person.
          Payments to or through the United States office of a broker will
          be subject to information reporting and backup withholding unless
          the Non-United States Holder certifies, under penalties of
          perjury, that it is not a United States person or otherwise
          establishes an exemption.

               For payments made after December 31, 1999, with respect to
          New Notes held by foreign partnerships, IRS regulations require
          that the certification described in (iv) under "Interest and OID
          on New Notes" above be provided by the partners, rather than by
          the foreign partnership, and that the partnership provide certain
          information, including a United States taxpayer identification
          number. A look-through rule will apply in the case of tiered
          partnerships.

               Non-United States Holders should consult their tax advisors
          regarding the application of information reporting and backup
          withholding in their particular situations, the availability of
          an exemption therefrom, and the procedures for obtaining such an
          exemption, if available. Any amounts withheld under the backup
          withholding rules will be allowed as a refund or credit against
          the Non-United States Holder's U.S. federal income tax liability
          and may entitle such Holder to a refund, provided the required
          information is furnished to the IRS.


                                      -92-
     <PAGE>


                              PLAN OF DISTRIBUTION 

               Except as described below, a broker-dealer may not
          participate in the Exchange Offer in connection with a
          distribution of the New Notes. Each broker-dealer that receives
          New Notes for its own account pursuant to the Exchange Offer must
          acknowledge that it will deliver a prospectus in connection with
          any resale of such New Notes. This Prospectus, as it may be
          amended or supplemented from time to time, may be used by a
          broker-dealer in connection with resales of New Notes received in
          exchange for Old Notes where such Old Notes were acquired as a
          result of market-making activities or other trading activities.
          The Company shall for a period of 90 days after the Expiration
          Date make this Prospectus, as amended or supplemented, available
          to any broker-dealer for use in connection with any such resale.
          In addition, until ______________, 1998 all dealers effecting
          transactions in the New Notes may be required to deliver a
          prospectus.

               The Company will not receive any proceeds from any sale of
          New Notes by broker-dealers. New Notes received by broker-dealers
          for their own account pursuant to the Exchange Offer may be sold
          from time to time in one or more transactions in the
          over-the-counter market, in negotiated transactions, through the
          writing of options on the New Notes or a combination of such
          methods of resale, at market prices prevailing at the time of
          resale, at prices related to such prevailing market prices or
          negotiated prices. Any such resale may be made directly to
          purchasers or to or through brokers or dealers who may receive
          compensation in the form of commissions or concessions from any
          such broker-dealer and/or the purchasers of any such New Notes.
          Any broker-dealer that resells New Notes that were received by it
          for its own account pursuant to the Exchange Offer and any broker
          or dealer that participates in a distribution of such New Notes
          may be deemed to be an "underwriter" within the meaning of the
          Securities Act and any profit on any such resale of New Notes and
          any commissions or concessions received by any such persons may
          be deemed to be underwriting compensation under the Securities
          Act. The Letter of Transmittal states that by acknowledging that
          it will deliver and by delivering a prospectus, a broker-dealer
          will not be deemed to admit that it is an "underwriter" within
          the meaning of the Securities Act.

               The Company has agreed to pay all expenses incident to the
          Exchange Offer other than commissions or concessions of any
          brokers or dealers and expenses of counsel for the holders of the
          New Notes and will indemnify the holders of the New Notes
          (including any broker-dealers) against certain liabilities,
          including liabilities under the Securities Act.


                                    LEGAL MATTERS

               The validity of the New Notes offered hereby and certain tax
          matters will be passed upon by Reid & Priest LLP, New York, New
          York.

                                       EXPERTS

               The consolidated financial statements of NETCOM On-Line
          Communication Services, Inc. at December 31, 1996 and 1997, and
          for each of the three years in the period ended December 31,
          1997, appearing in this Prospectus and in the Registration
          Statement, have been audited by Ernst & Young LLP, independent
          auditors, as set forth in their report thereon appearing
          elsewhere herein and in the Registration Statement and are
          included in reliance upon such report given upon the authority of
          such firm as experts in accounting and auditing.

               ICG Services, Inc. has appointed KPMG Peat Marwick LLP as
          the independent auditors of the Company for the fiscal year ended
          December 31, 1998.


                                    -93-
     <PAGE>


                      INDEX TO CONSOLIDATED FINANCIAL STATEMENTS


                                                                       Page
                                                                       ----
          NETCOM ON-LINE COMMUNICATION SERVICES, INC.

               Report of Ernst & Young LLP, Independent Auditors  . . . F-2

               Consolidated Balance Sheets as of December 31, 1996 and
                    1997  . . . . . . . . . . . . . . . . . . . . . . . F-3

               Consolidated Statements of Operations for the years ended
                    December 31, 1995, 
                    1996 and 1997 . . . . . . . . . . . . . . . . . . . F-4

               Consolidated Statements of Stockholders' Equity for the
                    years ended December 31, 1995, 1996 and 1997  . . . F-5

               Consolidated Statements of Cash Flows for the years ended
                    December 31, 1995, 1996 and 1997  . . . . . . . . . F-6

               Notes to Consolidated Financial Statements . . . . . . . F-7


                                      -94-
     <PAGE>

                  REPORT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS


          The Board of Directors and Stockholders
          NETCOM On-Line Communication Services, Inc.

               We have audited the accompanying consolidated balance sheets
          of NETCOM On-Line Communication Services, Inc. as of December 31,
          1996 and 1997, and the related consolidated statements of
          operations, stockholders' equity and cash flows for each of the
          three years in the period ended December 31, 1997.  These
          financial statements are the responsibility of the Company's
          management.  Our responsibility is to express an opinion on these
          financial statements based on our audits.

               We conducted our audits in accordance with generally
          accepted auditing standards.  Those standards require that we
          plan and perform the audit to obtain reasonable assurance about
          whether the financial statements are free of material
          misstatement.  An audit includes examining, on a test basis,
          evidence supporting the amounts and disclosures in the financial
          statements.  An audit also includes assessing the accounting
          principles used and significant estimates made by management, as
          well as evaluating the overall financial statement presentation. 
          We believe that our audits provide a reasonable basis for our
          opinion.

               In our opinion, the consolidated financial statements
          referred to above present fairly, in all material respects, the
          consolidated financial position of NETCOM On-Line Communication
          Services, Inc. at December 31, 1996 and 1997 and the consolidated
          results of its operations and its cash flows for each of the
          three years in the period ended December 31, 1997, in conformity
          with generally accepted accounting principles.



                                                       ERNST & YOUNG LLP


          San Jose, California
          February 13, 1998


                                     F-2
      <PAGE>


                     NETCOM ON-LINE COMMUNICATION SERVICES, INC.
                             CONSOLIDATED BALANCE SHEETS
                  (in thousands except share and per share amounts)


                                                          DECEMBER 31,
                                                       -------------------
                                                         1996       1997
                                                       --------  ---------
                             ASSETS
           Current assets:
            Cash and cash equivalents  . . . . . . .$ 73,408   $ 63,368
            Short term investments   . . . . . . . .     849          -
            Amounts receivable, net of allowance for
             doubtful accounts of
             $896 and $1,628 in 1996 and 1997,
             respectively  . . . . . . . . . . . . .   1,284      2,397
            Inventory  . . . . . . . . . . . . . . .     464        341
            Prepaid expenses   . . . . . . . . . . .   2,484      3,554
                                                     -------    -------
                Total current assets . . . . . . . .  78,489     69,660
            Property and equipment at cost, net  . .  84,373     72,945
            Deferred subscriber acquisition costs,
                net  . . . . . . . . . . . . . . . .   5,595      3,115
            Deposits and other assets  . . . . . . .   1,177      1,127
                                                     -------    -------
                     Total assets  . . . . . . . . .$169,634   $146,847
                                                    ========   ========

              LIABILITIES AND STOCKHOLDERS' EQUITY
           Current liabilities:
            Trade accounts payable   . . . . . . . .$  7,517   $  9,314
            Accrued payroll and related expenses   .   3,727      5,897
            Other accrued expenses and liabilities    10,669      8,090
            Deferred revenue   . . . . . . . . . . .   2,930      5,170
            Short-term capital lease obligations   .       -      2,491
                                                      ------    -------
                Total current liabilities  . . . . .  24,843     30,962
                                                      ------    -------
            Long-term capital lease obligations  . .       -      3,550
                                                      ------    -------
            Commitments and contingencies
            Stockholders' equity:
              Preferred stock. $0.01 per value;
               5,000,000 authorized and
               none issued   . . . . . . . . . . . .       -          -
              Common stock, $0.01 par value;
               authorized shares - 40,000,000;
               11,630,900 and 11,783,100 shares
               issued and outstanding
               at December 31, 1996 and 1997,
               respectively  . . . . . . . . . . . .     116        117
              Additional paid-in capital   . . . . . 205,506    207,208
              Accumulated deficit  . . . . . . . . . (62,042)   (95,134)
              Cumulative translation adjustment and
               other   . . . . . . . . . . . . . . .   1,211        144
                                                     -------    -------
                  Total stockholders' equity . . . . 144,791    112,335
                                                     -------    -------
                    Total liabilities and
                    stockholders' equity . . . . . .$169,634   $146,847
                                                    ========   ========


                                See accompanying notes


                                     F-3
     <PAGE>

                     NETCOM ON-LINE COMMUNICATION SERVICES, INC.
                        CONSOLIDATED STATEMENTS OF OPERATIONS
                       (in thousands except per share amounts)


                                                  YEARS ENDED DECEMBER 31,
                                                ----------------------------
                                                   1995      1996     1997
                                                --------  --------  --------
           Revenue . . . . . . . . . . . . . .  $ 52,422  $120,540  $160,660
           Costs and expenses:
            Cost of revenue  . . . . . . . . .    36,641    88,396   118,432
            Product development  . . . . . . .     2,240     6,020     6,518
            Sales and marketing  . . . . . . .    18,771    51,237    49,375
            General and administrative   . . .    11,016    23,610    22,264
            Restructuring and related charges          -         -     1,879
                                                 -------   -------   -------
              Total costs and expenses   . . .    68,668   169,263   198,468
                                                 -------   -------   -------
           Loss from operations  . . . . . . .   (16,246)  (48,723)  (37,808)
           Gain (loss) on investment . . . . .         -    (1,200)    1,274
           Interest income and other, net  . .     2,197     5,681     3,480
                                                 -------   -------   -------
           Loss before provision for income  
            taxes  . . . . . . . . . . . . . .   (14,049)  (44,242)  (33,054) 
           Provision for income taxes  . . . .        15        23        38
                                                 -------   -------   -------
           Net loss  . . . . . . . . . . . . .  $(14,064) $(44,265) $(33,092)
                                                 =======   =======   =======

           Basic and diluted net loss per share   $(1.68)   $(3.85)   $(2.82)
                                                 =======   =======   =======

           Shares used in computing basic and
            diluted net loss per share . . . .     8,350    11,498    11,717
                                                 =======   =======   =======


                                See accompanying notes


                                     F-4
     <PAGE>

                     NETCOM ON-LINE COMMUNICATION SERVICES, INC.
                   CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
                       (in thousands except per share amounts)


                                     COMMON STOCK              ADDITIONAL
                                    --------------               PAID-IN
                                    SHARES     AMOUNT            CAPITAL
                                  ----------   ------          -----------
   Balance at December 31,
    1994 . . . . . . . . . . .     6,724,500      $67            $31,610
     Proceeds from issuance of
         common stock, net of
         issuance costs  . . .     3,750,000       38            169,177
     Issuance of common stock
         for the acquisition
         of Professional
         Internet Consulting,
         Inc.  . . . . . . . .        32,200        -              1,000
     Issuance of common stock
         for investment
         in The McKinley
         Group, Inc. . . . . .        12,600        -                300
     Exercise of stock options
         and purchases under
         employee stock purchase
         plan and other  . . .       576,800        6              1,073

     Cumulative translation
         adjustment  . . . . .             -        -                  -
     Net loss  . . . . . . . .             -        -                  -
                                  ----------   ------           --------
   Balance at December 31,
    1995 . . . . . . . . . . .    11,096,100      111             203,160
     Exercise of stock options
         and purchases under
         employee stock purchase
         plan and other  . . .       534,800        5               2,346
     Unrealized gains on
         available for sale
         investments . . . . .             -        -                   -
     Cumulative translation
         adjustment  . . . . .             -        -                   -
     Net loss  . . . . . . . .             -        -                   -
                                  ----------   ------             -------
   Balance at December 31,
    1996 . . . . . . . . . . .    11,630,900      116             205,506
     Exercise of stock options
         and purchases under
         employee stock purchase
         plan and other  . . .       152,200        1               1,702

     Change in unrealized gains
         on available for sale
         investments  . . . . . .          -        -                   -
     Cumulative translation
         adjustment  . . . . .             -        -                   -
     Net loss  . . . . . . . .             -        -                   -
                                  ----------    -----             --------
   Balance at December 31,
    1997 . . . . . . . . . . .    11,783,100     $117             $207,208
                                  ==========   ======             ========



                                        RETAINED     CUMULATIVE
                                        EARNINGS     TRANSLATION      TOTAL
                                      (ACCUMULATED   ADJUSTMENT   STOCKHOLDERS'
                                        DEFICIT)     AND OTHER       EQUITY
                                      ------------   ----------   ------------
Balance at December 31, 1994  . .        $(3,713)          $ -       $27,964
  Proceeds from issuance of common
      stock, net of issuance costs             -             -       169,215
 Issuance of common stock for the
      acquisition of Professional
      Internet Consulting, Inc. .              -             -         1,000
 Issuance of common stock
      for investment
      in The McKinley Group, Inc.              -             -           300
 Exercise of stock options and
      purchases under employee
      stock purchase plan and 
      other . . . . . . . . . . .              -             -         1,079
 Cumulative translation adjustment             -           (28)          (28)
 Net loss  . . . . . . . . . . .        (14,064)             -       (14,064)
                                        -------          -----       -------
Balance at December 31, 1995  . .       (17,777)           (28)      185,466
 Exercise of stock options and
      purchases under employee
      stock purchase plan and       
      other . . . . . . . . . . .            -               -         2,351
 Unrealized gains on available for 
      sale investments  . . . . .            -             540           540
 Cumulative translation adjustment           -             699           699
 Net loss  . . . . . . . . . . .       (44,265)              -       (44,265)
                                       -------           -----       -------
Balance at December 31, 1996  . .      (62,042)          1,211       144,791
 Exercise of stock options and
      purchases under                 
      employee stock purchase plan and
      other . . . . . . . . . . .            -               -         1,703
 Change in unrealized gains on
      available for sale                     -            (540)         (540)
      investments  . . . . . . . . .
 Cumulative translation adjustment           -            (527)         (527)
 Net loss  . . . . . . . . . . .       (33,092)              -       (33,092)
                                       -------           -----       -------
Balance at December 31, 1997  . .     $(95,134)          $ 144      $112,335
                                       =======           =====      ========





                               See accompanying notes


                                     F-5
     <PAGE>


                     NETCOM ON-LINE COMMUNICATION SERVICES, INC.
                        CONSOLIDATED STATEMENT OF CASH FLOWS
                                   (in thousands)


                                                        YEARS ENDED DECEMBER 31,
                                                        ------------------------
                                                            1995         1996
                                                            ----         -----
   OPERATING ACTIVITIES
     Net loss  . . . . . . . . . . . . . . . . . . .    $(14,064)     $(44,265)
     Adjustments to reconcile net loss to net cash
     used in operating activities:
      Write-off of fixed assets and deferred
      subscriber acquisitions costs  . . . . . . . .           -             -
      Depreciation and amortization  . . . . . . . .       9,945        29,626
      Loss on disposal of assets   . . . . . . . . .       1,311           286
      (Gain) loss on investments   . . . . . . . . .           -         1,200
      Changes in assets and liabilities:
        Accounts receivable, net . . . . . . . . . .          (3)          169
        Inventory  . . . . . . . . . . . . . . . . .        (115)         (258)
        Prepaid expenses and other current assets  .        (670)       (1,013)
        Deposits and other assets  . . . . . . . . .        (477)         (657)
        Trade accounts payable . . . . . . . . . . .       5,944        (3,872)
        Accrued payroll and related expenses . . . .       1,480         1,573
        Other accrued expenses and liabilities . . .       1,898         8,248
        Deferred subscriber acquisition costs, net .      (5,505)      (14,368)
                                                            (205)        1,680
        Deferred revenue . . . . . . . . . . . . . .     -------       -------
                                                          13,603        22,614
      Total adjustments  . . . . . . . . . . . . . .     -------       -------
                                                            (461)      (21,651)
   Net cash used in operating activities . . . . . .     -------       -------

   INVESTING ACTIVITIES
     Purchase of property and equipment  . . . . . .     (43,361)      (53,992)
     Proceeds from disposal of property and equipment          -             -
     Cash acquired from PICnet . . . . . . . . . . .          59             -
     Proceeds from sale of Excite  . . . . . . . . .           -             -
     Investment in affiliates  . . . . . . . . . . .      (1,200)            -
                                                            (240)            -
     Product development costs . . . . . . . . . . .     -------       -------
                                                         (44,742)      (53,992)
   Net cash used in investing activities . . . . . .     -------       -------

   FINANCING ACTIVITIES
     Proceeds from capital lease line  . . . . . . .           -             -
     Repayment of capital lease obligations  . . . .           -             -
     Proceeds from issuance of common stock, net of      170,294         2,351
     issuance costs  . . . . . . . . . . . . . . . .     -------       -------
                                                         170,294         2,351
   Net cash provided by financing activities . . . .     -------       -------
   Net increase (decrease) in cash and cash
   equivalents . . . . . . . . . . . . . . . . . . .     125,091       (73,292)
   Effects of exchange rates on cash . . . . . . . .         (28)          699
                                                          20,938       146,001
   Cash and cash equivalents at beginning of period      -------       -------
                                                        $146,001      $ 73,408
   Cash and cash equivalents at end of period  . . .     =======       =======

   SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
                                                        $      7      $   -   
   Interest paid . . . . . . . . . . . . . . . . . .     =======       =======
                                                        $      8      $     23
   Income taxes paid . . . . . . . . . . . . . . . .     =======       =======

   SUPPLEMENTAL INFORMATION ON NONCASH INVESTING AND
   FINANCING ACTIVITIES:
                                                        $  1,300      $   -   
   Stock issued for investments in affiliates  . . .     =======       =======
   Purchases of equipment under capital lease           $   -         $   -   
   obligations . . . . . . . . . . . . . . . . . . .     =======       =======



                                                                     YEARS ENDED
                                                                    DECEMBER 31,
                                                                    ------------
                                                                        1997
                                                                        ----
   OPERATING ACTIVITIES
     Net loss  . . . . . . . . . . . . . . . . . . . . . . . . .     $(33,092)
     Adjustments to reconcile net loss to net cash used in
     operating activities:
      Write-off of fixed assets and deferred subscriber                   992
      acquisitions costs   . . . . . . . . . . . . . . . . . . .
      Depreciation and amortization  . . . . . . . . . . . . . .       34,800
      Loss on disposal of assets   . . . . . . . . . . . . . . .          653
      (Gain) loss on investments   . . . . . . . . . . . . . . .       (1,274)
      Changes in assets and liabilities:
        Accounts receivable, net . . . . . . . . . . . . . . . .       (1,113)
        Inventory  . . . . . . . . . . . . . . . . . . . . . . .          123
        Prepaid expenses and other current assets  . . . . . . .       (1,070)
        Deposits and other assets  . . . . . . . . . . . . . . .           50
        Trade accounts payable . . . . . . . . . . . . . . . . .        2,012
        Accrued payroll and related expenses . . . . . . . . . .        2,170
        Other accrued expenses and liabilities . . . . . . . . .       (2,079)
        Deferred subscriber acquisition costs, net . . . . . . .       (6,542)
        Deferred revenue . . . . . . . . . . . . . . . . . . . .        2,240
                                                                      -------
      Total adjustments  . . . . . . . . . . . . . . . . . . . .       30,962
                                                                      -------
   Net cash used in operating activities . . . . . . . . . . . .       (2,130)
                                                                      -------
   INVESTING ACTIVITIES
     Purchase of property and equipment  . . . . . . . . . . . .      (10,865)
     Proceeds from disposal of property and equipment  . . . . .          253
     Cash acquired from PICnet . . . . . . . . . . . . . . . . .            -
     Proceeds from sale of Excite  . . . . . . . . . . . . . . .        1,583
     Investment in affiliates  . . . . . . . . . . . . . . . . .            -
     Product development costs . . . . . . . . . . . . . . . . .            -
                                                                      -------
   Net cash used in investing activities . . . . . . . . . . . .       (9,029)
                                                                      -------

   FINANCING ACTIVITIES
     Proceeds from capital lease line  . . . . . . . . . . . . .        1,578
     Repayment of capital lease obligations  . . . . . . . . . .       (1,930)
     Proceeds from issuance of common stock, net of issuance costs      1,703
                                                                      -------
   Net cash provided by financing activities . . . . . . . . . .        1,351
                                                                      -------
   Net increase (decrease) in cash and cash equivalents  . . . .       (9,808)
   Effects of exchange rates on cash . . . . . . . . . . . . . .         (232)
   Cash and cash equivalents at beginning of period  . . . . . .       73,408
                                                                      -------
   Cash and cash equivalents at end of period  . . . . . . . . .     $ 63,368
                                                                      =======

   SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
   Interest paid . . . . . . . . . . . . . . . . . . . . . . . .     $    493
                                                                      =======
   Income taxes paid . . . . . . . . . . . . . . . . . . . . . .     $     26
                                                                      =======

   SUPPLEMENTAL INFORMATION ON NONCASH INVESTING AND FINANCING
   ACTIVITIES:
   Stock issued for investments in affiliates  . . . . . . . . .     $   -   
                                                                      =======
   Purchases of equipment under capital lease obligations  . . .     $  6,393
                                                                      =======
                               See accompanying notes


                                      F-6
     <PAGE>


                      NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


          NOTE 1   ORGANIZATION

           NETCOM On-Line Communication Services, Inc. ("NETCOM" or the
          "Company") was incorporated in the state of California in August
          1992.  In October 1994, the Company reincorporated in the state
          of Delaware.  The Company provides Internet solutions to
          subscribers in the United States, the United Kingdom and Canada. 
          On January 21, 1998, the Company became a wholly owned subsidiary
          of ICG Services, Inc., a Delaware Corporation, which is a wholly
          owned subsidiary of ICG Communications, Inc. and ceased to exist
          as an independent entity (see note 11).

          NOTE 2   SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

           Principles of Consolidation

           The consolidated financial statements include the accounts of
          the Company and its subsidiaries.  All significant intercompany
          accounts and transactions have been eliminated.  Investments in
          affiliated companies representing less than a 20% interest and
          for which there is no ability to exert significant influence are
          carried at cost.

           Estimates and Assumptions

           The preparation of financial statements in conformity with
          generally accepted accounting principles requires management to
          make estimates and assumptions that affect the reported amounts
          of assets and liabilities and disclosure of contingent assets and
          liabilities at the date of the financial statements and the
          reported amounts of revenue and expenses during the reporting
          period.  Actual results could differ from those estimates.

           Revenue Recognition

           Monthly subscription service revenue is recognized over the
          period services are provided.  Subscription service and equipment
          revenue, which require the use of Company-provided installation
          of equipment at a subscriber's location, are recognized when the
          service is commenced.

           Cash and Cash Equivalents

           The Company considers all highly liquid investments with an
          original maturity (at the date of purchase) of three months or
          less and insignificant interest rate risk to be the equivalent of
          cash for the purposes of the balance sheet presentation and
          statement of cash flows.

           Accounts Receivable and Deferred Revenue

           The Company generally bills for subscription service, including
          direct access, Web site hosting and dial-up connection services
          and initial one-time setup fees, on the first day of each month
          for which service is provided.  Deferred revenue consists
          primarily of prepaid monthly subscriptions and also, to a lesser
          extent, billings to customers for equipment shipped that has not
          been installed at customer locations.

           Inventory

           Inventory consists of purchased goods and is stated at the
          lower of cost or market on a first-in, first-out basis.


                                     F-7
     <PAGE>


           Property and Equipment

           Property and equipment are carried at cost and depreciated or
          amortized using the straight-line method over the estimated
          useful life of the assets, which is generally three to five
          years. Leasehold improvements are amortized by the straight-line
          method over the shorter of their estimated useful lives or the
          term of the related lease.  Equipment under capital leases is
          depreciated on a straight-line basis over lease terms of thirty-
          six months.

           Deferred Subscriber Acquisition Costs

           The Company expenses the costs of advertising as incurred,
          except direct response advertising, which are included in
          subscriber acquisition costs.  Subscriber acquisition costs are
          deferred and amortized over a period determined by calculating
          the ratio of current revenue related to the direct response
          advertising versus the total expected revenue, or twelve months,
          whichever is shorter.  These costs relate directly to subscriber
          solicitations and principally include the printing, production
          and shipping of starter packages and the costs of obtaining
          qualified prospects by various targeted direct marketing
          programs.  No indirect costs are included in subscriber
          acquisition costs.  To date, all subscriber acquisition costs
          have been incurred for the solicitation of specifically
          identified prospects.  It is possible that these estimates of
          anticipated gross revenue could be reduced in the future based on
          management's periodic evaluation of the estimates used.  As a
          result, the carrying value and/or the amortization period and
          carrying value of the subscriber acquisition costs could be
          reduced.

           Deferred subscriber acquisition costs capitalized during fiscal
          years 1996 and 1997 were $14,368,000 and $6,542,000,
          respectively.  Amortization and write-offs for fiscal years 1995,
          1996 and 1997 were $2,755,000, $12,225,000 and $8,914,000,
          respectively, and have been included in sales and marketing
          expense in the Company's consolidated statement of operations.  

           The amounts charged to advertising expense were $4,534,000 in
          1995, $7,526,000 in 1996 and $4,680,000 in 1997.

           Concentrations of Credit Risk

           Financial instruments that potentially subject the Company to
          concentrations of credit risk consist principally of cash
          investments and trade receivables. The Company's cash investment
          policies limit investments to short-term, low-risk instruments.
          Concentrations of credit risk with respect to trade receivables
          are limited due to the large number of customers comprising the
          Company's customer base. During 1995, 1996, and 1997, the Company
          incurred bad debt expense in the amount of $182,000, $1,851,000
          and $1,511,000, respectively.

           Translation Adjustments

           The functional currency for all foreign operations is the local
          currency.  As such, all assets and liabilities denominated in
          foreign currencies are translated at the exchange rate on the
          balance sheet date.  Revenue, costs, and expenses are translated
          at weighted average rates of exchange prevailing during the
          period.  Translation adjustments are carried as a separate
          component of stockholders' equity.  Gains and losses resulting
          from foreign currency transactions are included in income.

           Basic and Diluted Net Loss Per Share

           In February 1997, the Financial Accounting Standards Board
          issued Statement No. 128, ("SFAS 128") "Earnings Per Share." 
          Under SFAS 128, basic loss per share is computed on the basis of
          weighted average common shares outstanding.  Diluted loss per
          share considers potential common stock instruments in the
          calculation.  The Company adopted SFAS 128 for its fiscal year
          ending December 31, 1997, including the requirement for


                                     F-8
     <PAGE>


          retroactive application.  The adoption of SFAS 128 had no effect
          on the Company's previously reported loss per share.  Potential
          common stock instruments, which include options, are not included
          in the loss per share calculation as their effect is anti-
          dilutive.

           Income Taxes

           Income taxes are accounted for under Statement of Financial
          Accounting Standards No. 109, "Accounting for Income Taxes."
          Under this method, deferred tax assets and liabilities are
          determined based on differences between the financial reporting
          and tax bases of assets and liabilities and are measured using
          the enacted tax rates and laws that will be in effect when the
          differences are expected to reverse.

          NOTE 3   INVESTMENTS

           The Company has classified all investments as available-for-
          sale.  Available-for-sale securities are carried at fair market
          value based on quoted market prices with unrealized gains and
          losses, net of tax, reported in stockholders' equity.  Realized
          gains and losses and declines in value judged to be other-than-
          temporary on available-for-sale securities are included in
          investment income.  Interest on securities classified as
          available-for-sale is included in investment income.

           The following is a summary of available-for-sale securities (in
          thousands):

                                                      DECEMBER 31,
                                               ---------------------------
                                                   1996           1997
                                                   ----           ----
           Commercial paper  . . . . . . . .  $ 61,149       $ 61,119
           Money market instruments, net of 
           overdrafts  . . . . . . . . . . .     7,265          1,173
           Equity securities . . . . . . . .       849              -
                                              --------       --------
                                                69,263         62,292
           Included in cash and cash            68,414         62,292
           equivalents . . . . . . . . . . .  --------       --------
           Included in short-term             $    849       $      -
           investments . . . . . . . . . . .  ========       ========

           At December 31, 1996 and 1997, the estimated fair value of the
          commercial paper and money market instruments approximated cost,
          and the amount of gross unrealized gains and losses was not
          significant. At December 31, 1996, the cost of equity securities
          was $309,000 and unrealized gains totaled $540,000.  All
          commercial paper and money market instruments mature within one
          year. During 1997, the Company recorded a realized gain on equity
          securities of $1,274,000 (see note 5).


                                    F-9
     <PAGE>


          NOTE 4   PROPERTY AND EQUIPMENT

           Property and equipment consists of the following (in
          thousands): 


                                                  DECEMBER 31,
                                          -----------------------------
                                               1996            1997
                                               ----            ----
           Equipment . . . . . . . . .   $ 87,771          $100,807
           Leasehold improvements  . .      7,893             8,617
           Furniture, fixtures and
           other . . . . . . . . . . .     10,286            11,895
           Construction in process . .      1,526               688
                                         --------          --------
                                          107,476           122,007
           Less accumulated
           depreciation and               (23,103)          (49,062)
            amortization . . . . . . .   --------          --------
           Net property and equipment    $ 84,373          $ 72,945
                                         ========          ========


           Depreciation expense was $6,563,000, $16,873,000 and
          $26,242,000 for 1995, 1996 and 1997, respectively.  Equipment
          includes $6,393,000 of equipment under capital leases at December
          31, 1997.  Accumulated depreciation for such equipment was
          $1,976,000 at December 31, 1997.

          NOTE 5   ACQUISITIONS

           In August 1995, the Company completed the acquisition of
          Professional Internet Consulting, Inc. ("PICnet") pursuant to an
          Agreement and Plan of Reorganization in a transaction accounted
          for using the purchase method of accounting.  As consideration
          for all of the outstanding shares of PICnet, the Company issued
          32,207 shares of its common stock at an approximate fair market
          value of $31.05 per share with a total value of approximately
          $1,000,000. Additionally, the Company acquired net liabilities
          with a fair value of approximately $373,000.  The resulting
          consideration in excess of assets acquired totaling $1,373,000
          represents the goodwill acquired.  The goodwill was amortized
          over a period of eighteen months and is fully amortized at
          December 31, 1997.  The results of PICnet have been included in
          the consolidated financial statements beginning in August 1995.

           In June 1995, the Company acquired common stock in The McKinley
          Group, Inc. ("McKinley") in exchange for $1,200,000 cash and
          $300,000 of common stock.  In 1996 Excite, Inc. ("Excite")
          acquired all of the outstanding shares of McKinley and the
          Company received shares of Excite in exchange for its investment
          in McKinley.  The Company recorded a loss of $1,200,000 in 1996
          to reflect the estimated value of the shares received.  During
          1997, the Company sold the Excite shares for a net gain of
          $1,274,000.

          NOTE 6   INDUSTRY SEGMENT REPORTING

           The Company operates in one principal industry segment, as a
          provider of Internet solutions, and markets its services
          internationally through foreign subsidiaries.  The Company's
          services are provided primarily to the individual and small
          business markets.



                                   F-10
     <PAGE>


           Geographic financial information is as follows (in thousands):


                                          YEARS ENDED DECEMBER 31,
                                 -----------------------------------------
                                      1995          1996          1997
                                      ----          ----          ----
          Revenue:
           United States  . . .   $  52,422     $ 118,055     $ 147,467
           International  . . .           -         2,485        13,193
                                  ---------     ---------     ---------
            Consolidated  . . .   $  52,422     $ 120,540     $ 160,660
                                  =========     =========     =========

          Loss from operations:
           United States  . . .   $ (15,263)    $ (34,697)    $ (20,346)
           International  . . .        (983)      (14,026)      (17,462)
                                  ---------     ---------     ---------
            Consolidated  . . .   $ (16,246)    $ (48,723)    $ (37,808)
                                  =========     =========     =========

          Identifiable assets:
           United States  . . .   $ 199,208     $ 153,564     $ 134,031
           International  . . .       3,472        16,070        12,816
                                  ---------     ---------     ---------
            Consolidated  . . .   $ 202,680     $ 169,634     $ 146,847
                                  =========     =========     =========


           Intersegment sales and transfers are not material.  Revenue is
          based on the location of the entity providing service. Loss from
          operations represents total revenue less costs and expenses, and
          does not include other income or provision for income taxes. 
          Identifiable assets of geographic areas are those assets used in
          the Company's operations in each area.  In September 1996, the
          Company signed a letter of intent for a joint venture agreement
          with a Brazilian conglomerate.  No significant operating costs
          were incurred during 1996 relating to the joint venture.  During
          1997, the Company recorded $2,013,000 as its share of operating
          losses relating to the joint venture, which have been included in
          sales and marketing expense in the Company's consolidated
          statement of operations. During December 1997, the Company
          transferred its interest in the Brazilian joint venture to its
          partner, Grupo Itamarati.

          NOTE 7   COMMITMENTS AND CONTINGENCIES

           Legal Proceedings

           The Company is subject to legal proceedings and claims which
          have arisen in the ordinary course of its business and have not
          been finally adjudicated. In the opinion of management,
          settlement of these actions when ultimately concluded will not
          have a material adverse effect on trends in results of operations
          or the financial condition of the Company.  This conclusion is
          based upon current facts and circumstances, however, and it is
          possible that a change in the facts and circumstances relating to
          such legal proceedings and claims could result in a development
          that would have a material adverse effect on the results of
          operations or financial condition of the Company.


                                     F-11
     <PAGE>


           Operating Lease Obligations

           The Company has operating leases for all of its premises.  The
          Company's rental expenses under operating leases in the years
          ended December 31, 1995, 1996 and 1997 totaled approximately
          $1,603,000, $5,152,000 and $6,192,000, respectively.  Future
          minimum lease payments for all leases are as follows (in
          thousands): 

                 FISCAL YEARS
                 ------------
                 1998  . . . . . . . . . . . . . .   $ 6,168
                 1999  . . . . . . . . . . . . . .     5,553
                 2000  . . . . . . . . . . . . . .     2,324
                 2001  . . . . . . . . . . . . . .     1,475
                 2002  . . . . . . . . . . . . . .       848
                 Thereafter  . . . . . . . . . . .       278
                                                     -------
                 Total minimum lease payments  . .   $16,646
                                                     =======


           Telecommunications Lines

           The Company has guaranteed monthly usage levels with its
          primary communications vendor.  The yearly commitment in each of
          the years 1998, 1999, 2000 and 2001 is $9,300,000, $9,300,000,
          $7,550,000 and $4,200,000, respectively.  These amounts are
          exclusive of usage discounts. 

           Capital Lease Obligations

           The Company leases a portion of its equipment under capital
          lease agreements with leasing companies in the United States and
          Canada.  Future minimum payments under all capital leases are as
          follows (in thousands):


                FISCAL YEARS
                ------------
                1998  . . . . . . . . . . . . . . .   $  3,223
                1999  . . . . . . . . . . . . . . .      3,194
                2000  . . . . . . . . . . . . . . .        816
                                                      --------
                Total capital lease obligations . .      7,233
                Less: amount representing interest      (1,192)
                                                      --------
                Present value of capital lease
                obligations . . . . . . . . . . . .      6,041
                Less: current portion . . . . . . .     (2,491)
                                                      --------
                Total minimum lease payments  . . .   $  3,550
                                                      ========




          NOTE 8   EMPLOYEE BENEFIT PLANS

           The Company has elected to follow Accounting Principles Board
          Opinion No. 25, "Accounting for Stock Issued to Employees," (APB
          25) and related Interpretations in accounting for its employee
          stock awards because, as discussed below, the alternative fair
          value accounting provided for under SFAS No. 123, "Accounting for
          Stock-Based Compensation," requires use of option valuation
          models that were not developed for use in valuing employee stock


                                      F-12
     <PAGE>


          options.  Under APB 25, when the exercise price of the Company's
          employee stock options equals the market price of the underlying
          stock on the date of grant, no compensation expense is
          recognized. 

           1993 Stock Option Plan

           In 1993, the Company approved and adopted its 1993 Stock Option
          Plan (the "Plan"). The Plan is administered by the Stock Option
          Committee of the Board of Directors. The Plan provides for the
          granting of options to purchase common stock to eligible
          employees, directors and consultants of the Company. A total of
          3,153,571 shares of common stock may be issued pursuant to
          options granted under the Plan. The options generally vest over
          three to five year periods and are exercisable for up to ten
          years following the date of grant.  

           The following table summarizes stock option activity: 

                                            OPTIONS OUTSTANDING
                                        ---------------------------
                                                           WEIGHTED
                                             NUMBER        AVERAGE
                                               OF          EXERCISE
                                             SHARES         PRICE
                                             ------        --------
           Balance at December 31,  
           1994  . . . . . . . . . .       698,200          $  5.83
              Granted  . . . . . . .     1,265,600          $ 30.33
              Exercised  . . . . . .      (258,500)         $  2.57
              Forfeited  . . . . . .       (19,900)         $ 19.94
                                         ---------          -------
           Balance at December 31,  
           1995  . . . . . . . . . .     1,685,400          $ 24.56
              Granted  . . . . . . .       848,700          $ 25.95
              Exercised  . . . . . .      (193,400)         $  6.08
              Forfeited  . . . . . .      (449,700)         $ 28.70
                                         ---------          -------
           Balance at December 31,  
           1996  . . . . . . . . . .     1,891,000          $ 26.09
              Granted  . . . . . . .     2,122,100          $ 13.90
              Exercised  . . . . . .       (89,600)         $ 11.18
              Forfeited  . . . . . .    (2,021,400)         $ 25.75
                                         ---------          -------
           Balance at December 31,       1,902,100          $ 13.52
           1997  . . . . . . . . . .     =========          -------


           At December 31, 1995, 1996 and 1997, approximately 335,600,
          588,200 and 573,300 options, respectively, were exercisable under
          the Plan.

           In addition, in January 1994, the Company granted options,
          under individual stock option agreements, to purchase 562,500 and
          62,500 shares of common stock (of which 40,200 shares expired
          upon the director's resignation in October 1994) at an exercise
          price per share of $0.80 to the Company's former Chairman of the
          Board and Chief Technical Officer and a former director of the
          Company, respectively. These options, which were granted outside
          the Plan, vested in full upon the Company's December 1994 public
          offering.  During 1995, 291,400 of the options were exercised
          outside the Plan.  The remaining 293,400 options were exercised
          during 1996.


                                     F-13
      <PAGE>


          The following table summarizes information about the Company's
          stock options outstanding at December 31, 1997:

                                         OPTIONS OUTSTANDING
                           ----------------------------------------------
                                       WEIGHTED AVERAGE
              RANGE OF       NUMBER       REMAINING      WEIGHTED AVERAGE
          EXERCISE PRICES  OUTSTANDING CONTRACTUAL LIFE   EXERCISE PRICE
          ---------------  ----------- ----------------  ----------------

               $2.24           12,500        6.25              $ 2.24
               $4.48            1,800        6.36              $ 4.48
           $7.84 - $11.20     345,000        8.83              $ 9.62
          $12.13 - $17.25   1,432,100        9.25              $13.97
          $18.75 - $27.00     108,400        9.61              $21.05
          $35.88 - $40.25       2,300        7.93              $37.46
                            ---------      
           $2,24 - $40.25   1,902,100        9.17              $13.52
                            =========    

                              OPTIONS EXERCISABLE
                           --------------------------

              RANGE OF       NUMBER   WEIGHTED AVERAGE
          EXERCISE PRICES EXERCISABLE  EXERCISE PRICE
          --------------- ----------- ----------------

               $2.24          12,500       $ 2.24
               $4.48           1,800       $ 4.48
           $7.84 - $11.20     91,500       $ 8.83
          $12.13 - $17.25    456,100       $13.65
          $18.75 - $27.00     10,300       $23.85                            
           $3.88 - $40.25      1,100       $37.73
                             -------
           $2.24 - $40.25    573,300       $12.83
                             =======


               During 1996 and 1997, certain outstanding options were
          exchanged at the election of the option holder.  In September
          1996, 67,408 shares were exchanged and repriced for 39,995 shares
          and in January 1997, 457,846 shares were exchanged and repriced
          for 272,084 shares.  On the effective date of the trade in,
          eligible options were issued at a price lower than the traded in
          option and at a price higher than the market value.  The trade in
          ratio was set such that the number of old options times their
          option price approximates the new number of options times their
          exercise price.  This program was offered to all employees
          excluding members of the Board of Directors and Officers of the
          Company.  However, option holders participating in the first
          exchange were not eligible for the second program.

               During May 1997, 1,182,374 outstanding options were
          exchanged at the election of certain stock option holders and
          repriced for 632,546 options. This was offered to all employees
          including members of the Board of Directors and officers of the
          Company.

               Employee Stock Purchase Plan

               In 1994, the Board of Directors of the Company approved and
          adopted an Employee Stock Purchase Plan (the "ESPP") to provide
          employees of the Company with an opportunity to purchase common
          stock through payroll deductions. Under the ESPP, 200,000 shares
          of common stock were reserved for issuance, subject to anti-
          dilution adjustments. The ESPP was effective upon the
          effectiveness of the Company's initial public offering in
          December 1994.  Each offering period under the ESPP was six
          months long, although the Board of Directors had the authority to
          determine the duration of offering periods, up to a maximum of 27
          months. Eligible employees could participate in the ESPP by
          authorizing payroll deductions of an amount determined by the
          Board of Directors.  The amount of authorized payroll deductions
          could not be less than 1% nor more than 10% of an employee's
          initial cash compensation, not to exceed $25,000 per year.
          Amounts withheld were applied at the end of every six-month
          accumulation period to purchase shares of common stock, but not
          more than 2,500 shares, or such other number of shares as the
          Board of Directors determined.

               Participants could withdraw their contributions at any time
          before stock was purchased, and such contributions were returned
          to the participants without interest. The purchase price was
          equal to 85% of the lower of (i) the market price of common stock
          immediately before the beginning of the applicable period or (ii)
          the market price of common stock at the time of the purchase. As
          of December 31, 1996 and 1997, 75,400 and 138,000 shares of
          common stock were purchased under the ESPP, respectively.

               The Company's ESPP was dissolved in conjunction with
          NETCOM's merger with ICG Communications, Inc. (see note 11).


                                      F-14
     <PAGE>


               Pro Forma Information

               In October 1995, the Financial Accounting Standards Board
          ("FASB") issued SFAS No. 123, "Accounting for Stock-Based
          Compensation."  The Company adopted SFAS No. 123 in 1996. As
          allowed by SFAS No. 123, the Company applies APB 25 for purposes
          of determining net loss and provides the pro forma disclosure
          requirements of SFAS No. 123.  Pro forma information regarding
          net loss per share as required by SFAS No. 123, also requires
          that the information be determined as if the Company has
          accounted for its employee stock options (including shares issued
          under the stock purchase plan) granted subsequent to December 31,
          1994 under the fair value method.  The fair value for these
          options was estimated at the date of grant using a Black-Scholes
          option pricing model with the following weighted average
          assumptions for 1995, 1996 and 1997: risk-free interest rate of
          6%, a zero percent dividend yield, volatility factor of the
          expected market price of the Company's common stock of 80% for
          all three years; and a weighted average expected life of the
          option of 1.6 years from vest date. 

               The Black-Scholes option valuation model was developed for
          use in estimating the fair value of traded options which have no
          vesting restrictions and are fully transferable. In addition,
          option valuation models require the input of highly subjective
          assumptions including the expected stock price volatility.
          Because the Company's employee stock options have characteristics
          significantly different from those of traded options, and because
          changes in the subjective input assumptions can materially affect
          the fair value estimate, in management's opinion, the existing
          models do not necessarily provide a reliable single measure of
          the fair value of its employee stock options.

               The weighted average estimated fair value of stock options
          granted during 1995, 1996 and 1997 was $18.44, $16.73 and $11.94
          per share, respectively.  The weighted average estimated fair
          value of shares granted under the Employee Stock Purchase Plan
          during 1995, 1996 and 1997 was $7.18, $5.75 and $4.86,
          respectively.

               For purposes of pro forma disclosures, the estimated fair
          value of the options is amortized to expense over the options'
          vesting period. The Company's pro forma information follows (in
          thousands except for earnings per share information):

                                         YEARS ENDED DECEMBER 31,
                                         ------------------------
                                      1995          1996         1997
                                      ----          ----         ----

          Net loss - as reported  $(14,064)    $(44,265)     $(33,092)
                                  ========     ========      ========

          Net loss - pro forma    $(18,879)    $(56,143)     $(37,962)
                                  ========     ========      ========

          Net loss per share -      $(1.68)      $(3.85)       $(2.82)
          as reported . . . . .   ========     ========      ========

          Net loss per share -      $(2.26)      $(4.88)       $(3.24)
          pro forma . . . . . .   ========     ========      ========


               The effect on pro forma disclosures of applying SFAS No. 123
          are not likely to be representative of the effects on pro forma
          disclosures in future years.


                                     F-15
     <PAGE>


          Employee Savings Plan

               The Company has a savings plan (the "Savings Plan") that
          qualifies as a deferred salary arrangement under Section 401(k)
          of the Internal Revenue Code.  Under the Savings Plan,
          participating employees may defer a portion of their pretax
          earnings, up to the Internal Revenue Service annual contribution
          limit.  Prior to 1997, the Company matched 50% of each employee's
          contributions up to a maximum of 6% of the employee's eligible
          earnings. During 1997, the Company began matching 100% of each
          employee's contributions up to a maximum of 3% of the employee's
          eligible earnings.  Company matches vest over four years.

          NOTE 9    INCOME TAXES

               The provision for income taxes for 1995, 1996 and 1997 in
          the amount of $15,000, $23,000 and $38,000, respectively,
          consists entirely of  international and state minimum taxes since
          the Company incurred pre-tax losses in each year.

               Significant components of the Company's deferred tax assets
          and liabilities for federal and state income taxes are as follows
          (in thousands):


                                                 DECEMBER 31,
                                     -----------------------------------
                                           1996               1997
                                           ----               ----
           Deferred tax assets
              Net operating loss 
                carryforwards  . .   $   27,829         $   43,016
              Deferred revenue . .        1,087              1,932
              Other, net . . . . .        3,503              2,877
                                     ----------        -----------
              Total deferred tax 
                assets . . . . . .       32,419             47,825
              Valuation allowance       (31,104)           (44,598)
                                     ----------        -----------
                                     $    1,315        $     3,227
                                     ==========        ===========
           Deferred tax
             liabilities
              Deferred subscriber
                 acquisition costs   $   (1,153)       $      (939) 
              Accumulated       
                depreciation and
                amortization . . .         (162)            (2,288)
                                     ----------        -----------
                                     $   (1,315)       $    (3,227)
                                     ==========        ===========


               Realization of deferred tax assets is dependent on future
          earnings, the timing and amount of which are uncertain. 
          Accordingly, a valuation allowance, in an amount equal to the net
          deferred tax assets as of December 31, 1996 and 1997 has been
          established to reflect these uncertainties.  The change in the
          valuation allowance was a net increase of $24,446,000 and
          $13,494,000 in 1996 and 1997, respectively.  Approximately
          $124,000 of the valuation allowance at December 31, 1997 is
          attributable to the tax benefits of disqualifying dispositions of
          stock received through incentive stock options and the Company's
          employee stock purchase plan, the benefit of which will be
          credited to additional paid-in capital when realized.


                                     F-16
      <PAGE>

               At December 31, 1997, the Company had federal, state and
          foreign net operating loss carryforwards of approximately
          $89,000,000, $37,000,000 and $27,000,000, respectively, which
          will expire in the years 1999 through 2011.  Under the Tax Reform
          Act of 1986, the amounts and benefits of net operating losses
          that can be carried forward may be impaired in certain
          circumstances, including a cumulative change of more than 50%
          over a three year period. The Agreement and Plan of Merger, as
          amended, with ICG Communications, Inc. which was consummated on
          January 21, 1998 (see note 11) resulted in a change in ownership
          greater than 50%. Accordingly, the Company's net operating loss
          carryforwards incurred prior to January 21, 1998 that can be
          utilized to reduce future taxable income are limited to
          approximately $15 million per year. 

          NOTE 10   RESTRUCTURING AND RELATED CHARGES

               Restructuring and related charges of $1,879,000 during 1997
          are the result of a decision by management to restructure
          operations of the Company's subsidiary in the United Kingdom. 
          The charge includes $1,356,000 in accrued expenses for costs to
          terminate excess leased office facilities and a write-off of
          office equipment, furniture and building improvements as a result
          of consolidating office space, a $356,000 write-down of
          previously capitalized deferred subscriber acquisition costs and
          $167,000 for severance costs relating to approximately twelve
          employees. 

               The following table depicts the activity in the Company's
          restructuring accrual at December 31, 1997 (in thousands):

                                                              BALANCE AT
                                 ADDITIONS     EXPENDITURES  DECEMBER 31,
                                DURING 1997    DURING 1997       1997
                                -----------    -----------    ----------
      Payments on canceled or
      vacated facilities  . .     $   588        $   456       $   132
      Payments for legal and 
      other support . . . . .         132            132             -
      Payments to employees  
      involuntarily          
      terminated  . . . . . .         167            135            32
                                  -------        -------       -------
      Total restructuring         $   887        $   723       $   164
      accrual . . . . . . . .     =======        =======       =======


          NOTE 11   SUBSEQUENT EVENTS

               Agreement and Plan of Merger with ICG Communications, Inc.

               On October 12, 1997, the Company entered into an Agreement
          and Plan of Merger, as amended (the "Merger Agreement"), with ICG
          Communications, Inc., a Delaware corporation ("ICG"), pursuant to
          which ICG agreed to acquire the Company through a tax-free merger
          (the "Merger") of a newly formed Delaware subsidiary of ICG with
          and into the Company.  On January 21, 1998, all contingencies of
          the merger were satisfied and the Merger was consummated.  Under
          the terms of the Merger Agreement, each share of the Company's
          common stock has been exchanged for 0.8628 shares of common stock
          of ICG ("ICG Common Stock").  The Company became a wholly owned
          subsidiary of ICG Services, Inc., a Delaware corporation, which
          is a wholly owned subsidiary of ICG Communications, Inc., and
          ceased to exist as an independent entity.

               On December 31, 1997, there were $1,500,000 of deferred
          merger expenses included in prepaid expenses which were
          subsequently expensed in January 1998.


                                      F-17
     <PAGE>


                                       PART II

                        INFORMATION NOT REQUIRED IN PROSPECTUS

          ITEM 20. INDEMNIFICATION OF DIRECTORS AND OFFICERS

             ICG Services' Certificate of Incorporation provides that the
          Company will indemnify, to the fullest extent permitted by the
          General Corporation Law of the State of Delaware, as amended from
          time to time (the "GCL"), all persons, whom it may identify
          pursuant thereto.  ICG Services' By-laws contain a similar
          provision requiring indemnification of its directors and officers
          to the fullest extent authorized by the GCL. The GCL permits a
          corporation to indemnify its directors and officers (among
          others) against expenses (including attorneys' fees), judgments,
          fines and amounts paid in settlement actually and reasonably
          incurred by them in connection with any action, suit or
          proceeding brought (or threatened to be brought) by third
          parties, if such directors or officers acted in good faith and in
          a manner they reasonably believe to be in or not opposed to the
          best interests of the corporation and, with respect to any
          criminal action or proceeding, had no reasonable cause to believe
          their conduct was unlawful. In a derivative action, i.e., one by
          or in the right of the corporation, indemnification may be made
          for expenses (including attorneys' fees) actually and reasonably
          incurred by directors and officers in connection with the defense
          or settlement of such action if they had acted in good faith and
          in a manner they reasonably believed to be in or not opposed to
          the best interests of the corporation, except that no
          indemnification shall be made in respect of any claim, issue or
          matter as to which such person shall have been adjudged liable to
          the corporation unless and only to the extent that the Court of
          Chancery or the court in which such action or suit was brought
          shall determine upon application that, despite the adjudication
          of liability but in view of all the circumstances of the case,
          such person is fairly and reasonably entitled to indemnity of
          such expenses. The GCL further provides that, to the extent any
          director or officer has been successful on the merits or
          otherwise in defense of any action, suit or proceeding referred
          to in this paragraph, or in defense of any claim, issue or matter
          therein, such person shall be indemnified against expenses
          (including attorneys' fees) actually and reasonably incurred by
          him in connection therewith. In addition, ICG Services'
          Certificate of Incorporation contains a provision limiting the
          personal liability of its directors for monetary damages for
          certain breaches of their fiduciary duty. ICG Services and ICG
          Equipment are additional insureds under ICG Communications'
          indemnification insurance under which directors and officers are
          insured against certain liability that may incur in their
          capacity as such.

             See Item 22 of this Registration Statement regarding the
          position of the Securities and Exchange Commission on
          indemnification for liabilities arising under the Securities Act.


          ITEM 21. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

          (1)  Underwriting Agreement.
               ----------------------

               1.1: Placement Agreement, dated February 9, 1998, among ICG
                    Services, Inc., NETCOM On-Line Communication Services,
                    Inc. and Morgan Stanley & Co. Incorporated.

          (2)  Plan of Acquisition, Reorganization, Arrangement,
               -------------------------------------------------
               Liquidation or Succession.  None.
               -------------------------

          (3)  Articles of Incorporation.
               -------------------------

               3.1: Certificate of Incorporation of ICG Services, Inc. *

               3.2: By-laws of ICG Services, Inc. *


                                        II-1
      <PAGE>



          (4)  Instruments defining the rights of security holders,
               ----------------------------------------------------
               including indentures.
               --------------------

               4.1: Form of Old Note.

               4.2: Form of New Note. *

               4.3: Form of Letter of Transmittal with respect to the
                    Exchange Offer. *

               4.4: Indenture, dated as of February 12, 1998, between ICG
                    Services, Inc. and Norwest Bank Colorado, National
                    Association.

               4.5: Registration Rights Agreement, dated February 12, 1998,
                    between ICG Services, Inc. and Morgan Stanley & Co.
                    Incorporated with respect to the Senior Discount Notes.

          (5)  Opinion regarding legality.
               --------------------------

               5.1: Opinion of Reid & Priest LLP.

          (8)  Opinion regarding tax matters.
               -----------------------------

               8.1: Opinion of Reid & Priest LLP.

          (9)  Voting Trust Agreement.  Not Applicable.
               ----------------------

          (10) Material Contracts.
                ------------------

                10.1(1):  Office Building Lease by and  between Pacific
                          Gateway  Properties,  Inc.  and NETCOM  On-Line
                          Communication Services, Inc. ("NETCOM") dated
                          February 1, 1994. *

                10.2(1):  Office Building Lease between Pacific Gateway
                          Properties,  Inc. and  NETCOM  dated May  11,
                          1994. *

                10.3(1):  Office Building Lease between Pacific Gateway
                          Properties, Inc. and NETCOM dated  August 26,
                          1994. *

                10.4(1):  1994 Employee Stock Purchase Plan of NETCOM. *

                10.5(1):  Form of Incentive Stock Option Agreement used
                          in connection with 1993 Stock Option Plan of
                          NETCOM. *

                10.6(1):  Form of Nonstatutory  Stock Option  Agreement
                          used in  connection  with 1993  Stock  Option
                          Plan of NETCOM. *

                10.7(1):  Brochure  Bundling  Agreement between  NETCOM
                          and Hayes Microcomputer Products,  Inc. dated
                          April 28, 1994. *

                10.8(1):  Joint  Marketing  and Distribution  Agreement
                          between    NETCOM   and    Tandem   Computers
                          Incorporated dated October 18, 1994. *

                10.9(1):  Agreement  between  NETCOM and  Auto-Graphics
                          dated July 17, 1994. *


                                      II-2
     <PAGE>


                10.10(1): Terms  and Conditions  agreed upon  by NETCOM
                          and   ClariNet  Communications   Corp.  dated
                          September 30, 1994. *

                10.11(1): Revenue Plan Application for  service between
                          NETCOM  and WilTel,  Inc.  dated  October  1,
                          1994, as amended  effective November 1, 1994. *
                              
                10.12(1): Distribution  Agreement  between  NETCOM  and
                          Ingram Micro Inc. dated September 15, 1994.*

                10.13(1): Distribution Agreement dated January 18, 1995
                          between NETCOM and Merisel Americas, Inc. *

                10.14(1): Horizon Center Office Lease Agreement between
                          NETCOM and  Horizon Center LLC,  dated as  of
                          December 11, 1995. *

                10.15(1): Lease   Agreement   between  Park   West  E-3
                          Associates and  NETCOM, dated as  of February
                          23, 1996. *

                10.16(1): 1993 Stock Option Plan, as amended of NETCOM. *


          (11) Statement re Computation of Per Share Earnings.  Not
               ----------------------------------------------
               Applicable.

          (12) Statement re Computation of Ratios.  Not Applicable.
               ----------------------------------

          (13) Annual Report.  Not Applicable.
               -------------

          (15) Letter re Unaudited Interim Financial Statements.  Not
               ------------------------------------------------
               Applicable.

          (16) Letter re Change in Certifying Accountant.  Not Applicable.
               -----------------------------------------

          (21) Subsidiaries of Registrant.
               --------------------------

               21.1:   Subsidiaries of Registrant.

          (23) Consents.
               --------

               23.1:   Consent of Ernst & Young LLP, Independent Auditors.

               23.2:   Consent of Reid & Priest LLP (included in
                       Exhibit 5.1).

          (24) Power of Attorney.
               -----------------

               24.1:   Power of Attorney with respect to ICG Services, Inc.
                       (included on the signature page hereto).

          (25) Statement of Eligibility of Trustee.
               -----------------------------------

               25.1:   Form T-1 Statement of Eligibility and Qualification
                       under the Trust Indenture Act of 1939 of Norwest
                       Bank Colorado, National Association. *


                                      II-3
     <PAGE>


          (26) Invitation for Competitive Bids.  Not Applicable.
               -------------------------------

          (27) Financial Data Schedule.
               -----------------------

               27.1:   Financial Data Schedule for the fiscal year
                       ended December 31, 1997.

               27.2:   Financial Data Schedule for the fiscal year
                       ended December 31, 1996.

               27.1:   Financial Data Schedule for the fiscal year
                       ended December 31, 1995.


          (99) Additional Exhibits.  Not Applicable.
               -------------------


               _____________________________

               * To be filed by amendment.


          ITEM 22. UNDERTAKINGS.

             Insofar as indemnification for liabilities arising under the
          Securities Act of 1933 may be permitted to directors, officers
          and controlling persons of the Company pursuant to the foregoing
          provisions, or otherwise, the Company has been advised that in
          the opinion of the Securities and Exchange Commission such
          indemnification is against public policy as expressed in the Act
          and is, therefore, unenforceable. In the event that a claim for
          indemnification against such liabilities (other than the payment
          by the Company of expenses incurred or paid by a director,
          officer or controlling person of the Company in the successful
          defense of any action, suit or proceeding) is asserted by such
          director, officer or controlling person in connection with the
          securities being registered, the Company will, unless in the
          opinion of its counsel the matter has been settled by controlling
          precedent, submit to a court of appropriate jurisdiction the
          question whether such indemnification by it is against public
          policy as expressed in the Act and will be governed by the final
          adjudication of such issue.

             The undersigned Registrant hereby undertakes:

             (1)  To respond to requests for information that is
                  incorporated by reference into the prospectus pursuant to
                  Items 4, 10(b), 11 or 13 of this Form, within one
                  business day of receipt of such request, and to send the
                  incorporated documents by first class mail or other
                  equally prompt means. This includes information contained
                  in documents filed subsequent to the effective date of
                  the Registration Statement through the date of responding
                  to the request;

             (2)  To supply by means of a post-effective amendment all
                  information concerning a transaction, and the company
                  being acquired involved therein, that was not the subject
                  of and included in the registration statement when it
                  became effective;

             (3)  To file, during any period in which offers or sales are
                  being made, a post-effective amendment to this
                  registration statement;


                                      II-4
     <PAGE>

                (i) To include any prospectus required by Section 10(a)(3)
                    of the Securities Act of 1933;

               (ii) To reflect in the prospectus any facts or events
                    arising after the effective date of the registration
                    statement (or the most recent post-effective amendment
                    thereof) which, individually or in the aggregate,
                    represent a fundamental change in the information set
                    forth in the registration statement;

              (iii) To include any material information with respect to
                    the plan of distribution not previously disclosed in
                    the registration statement or any material change to
                    such information in the registration statement;

             (4)  That, for the purpose of determining any liability under
                  the Securities Act of 1933, each such post-effective
                  amendment shall be deemed to be a new registration
                  statement relating to the securities offered therein, and
                  the offering of such securities at that time shall be
                  deemed to be the initial bona fide offering thereof.

             (5)  To remove from registration by means of a post-effective
                  amendment any of the securities being registered which
                  remain unsold at the termination of the offering.


                                     II-5
     <PAGE>


                                      SIGNATURES

          Pursuant to the requirement of the Securities Act, the Registrant
          has duly caused this registration statement to be signed on its
          behalf by the undersigned, thereunto duly authorized, in the City
          of Englewood, State of Colorado, on the 24th day of April, 1998.
                                                  

                                             ICG SERVICES, INC.



                                             By:  /s/ J. Shelby Bryan
                                                ---------------------------
                                                J. Shelby Bryan
                                                Chairman of the Board,
                                                President and Chief
                                                Executive Officer



          KNOW ALL MEN BY THESE PRESENTS, that each person whose signature
          appears below under the heading "Signatures" constitutes and
          appoints J. Shelby Bryan, James D. Grenfell and H. Don Teague,
          each as his true and lawful attorney-in-fact and agent with full
          power of substitution and resubstitution, for him and in his
          name, place and stead, in any and all capacities, to sign any or
          all amendments (including post-effective amendments) and
          supplements to this Registration Statement and any related
          Registration Statement filed pursuant to Rule 462(b) of the
          Securities Act of 1933, and to file the same, with all exhibits
          thereto, and other documents in connection therewith, with the
          Securities and Exchange Commission, granting unto said attorneys-
          in-fact and agents, and each of them, full power and authority to
          do and to perform each and every act and thing requisite and
          necessary to be done in connection with the above premises, as
          fully for all intents and purposes as he might or could do in
          person, hereby ratifying and confirming all that said attorneys-
          in-fact and agents, or any of them, or his or their substitute or
          substitutes, may lawfully do or cause to be done by virtue
          hereof.

          Pursuant to the requirements of the Securities Act of 1933, this
          registration statement has been signed by the following persons
          in the capacities and on the dates indicated:

                    Signature                  Title                 Date

            /s/ J. Shelby Bryan
           --------------------------   Chairman of the        April 24, 1998
           J. Shelby Bryan              Board, President
                                        and Chief Executive
                                        Officer (Principal
                                        executive officer)


            /s/ James D. Grenfell
           --------------------------   Executive Vice         April 24, 1998
           James D. Grenfell            President,
                                        Chief Financial
                                        Officer and
                                        Director (Principal
                                        financial officer)


            /s/ Richard Bambach
           --------------------------   Vice President and     April 24, 1998
           Richard Bambach              Corporate
                                        Controller
                                        (Principal
                                        accounting officer)


            /s/ H. Don Teague
           --------------------------   Executive Vice         April 24, 1998
           H. Don Teague                President, General
                                        Counsel, Secretary
                                        and Director


            /s/ David W. Garrison
           --------------------------   Executive Vice         April 24, 1998
           David W. Garrison            President and
                                        Director


            /s/ Sheldon S. Ohringer
           --------------------------   Director               April 24, 1998
           Sheldon S. Ohringer


                                       II-6
     <PAGE>




                                    EXHIBIT INDEX

          (1)     Underwriting Agreement.
                  ----------------------

                  1.1: Placement Agreement, dated February 9, 1998, among
                       ICG Services, Inc., NETCOM On-Line Communication
                       Services, Inc. and Morgan Stanley & Co.
                       Incorporated.

          (4)     Instruments defining the rights of security holders,
                  ----------------------------------------------------
                  including indentures.
                  --------------------

                  4.1: Form of Old Note.

                  4.4: Indenture, dated as of February 12, 1998, between
                       ICG Services, Inc. and Norwest Bank Colorado,
                       National Association.

                  4.5: Registration Rights Agreement, dated February 12,
                       1998, between ICG Services, Inc. and Morgan Stanley
                       & Co. Incorporated with respect to the Senior
                       Discount Notes.

          (5)     Opinion regarding legality.
                  --------------------------

                  5.1: Opinion of Reid & Priest LLP.

          (8)     Opinion regarding tax matters.
                  -----------------------------

                  8.1: Opinion of Reid & Priest LLP.

          (21)    Subsidiaries of Registrant.
                  --------------------------

                  21.1: Subsidiaries of Registrant.

          (23)    Consents.
                  --------

                  23.1: Consent of Ernst & Young LLP, Independent Auditors.

                  23.2: Consent of Reid & Priest LLP (included in
                          Exhibit 5.1).

          (24)    Power of Attorney.
                  -----------------

                  24.1:  Power of Attorney with respect to ICG Services,
                         Inc. (included on the signature page hereto).

          (27)    Financial Data Schedule.
                  -----------------------

               27.1:   Financial Data Schedule for the fiscal
                       year ended December 31, 1997.

               27.2:   Financial Data Schedule for the fiscal
                       year ended December 31, 1996.

               27.3:   Financial Data Schedule for the fiscal
                       year ended December 31, 1995.




                                     II-7






                                     $490,000,000


                                  ICG SERVICES, INC.


                            SENIOR DISCOUNT NOTES DUE 2008


                                 PLACEMENT AGREEMENT









          February 9, 1998


     <PAGE>

                                                           February 9, 1998


          Morgan Stanley & Co. Incorporated
          1585 Broadway
          New York, New York  10036

          Dear Sirs and Mesdames:

                    ICG Services, Inc., a Delaware corporation (the
          "COMPANY"), proposes to issue and sell to you (the "PLACEMENT
          AGENT") $490,000,000 aggregate principal amount at maturity of
          10% Senior Discount Notes due 2008 of the Company (the
          "SECURITIES") issued pursuant to the provisions of an Indenture
          to be dated as of February 12, 1998 (the "INDENTURE") among the
          Company and Norwest Bank Colorado, National Association, trustee
          (in such capacity, the "TRUSTEE").

                    The Securities will be offered without being registered
          under the Securities Act of 1933, as amended (the "SECURITIES
          ACT"), to qualified institutional buyers in compliance with the
          exemption from registration provided by Rule 144A under the
          Securities Act, in offshore transactions in reliance on
          Regulation S under the Securities Act ("REGULATION S") and to
          institutional accredited investors (as defined in Rule 501(a)(1),
          (2), (3) or (7) under the Securities Act) that deliver a letter
          in the form annexed to the Final Memorandum (as defined below).

                    The Placement Agent and its direct and indirect
          transferees will be entitled to the benefits of a Registration
          Rights Agreement to be dated the Closing Date (as defined below)
          and to be substantially in the form attached hereto as Exhibit A
          (the "REGISTRATION RIGHTS AGREEMENT").

                    In connection with the sale of the Securities, the
          Company has prepared a preliminary offering memorandum (the
          "PRELIMINARY MEMORANDUM") and will prepare a final offering
          memorandum (the "FINAL MEMORANDUM" and, with the Preliminary
          Memorandum, each a "MEMORANDUM") including a description of the
          terms of the Securities, the terms of the offering and a
          description of the Company. 

                    1.   Representations and Warranties of the Company. 
          The Company represents and warrants to, and agrees with, you
          that:

                    (a)  The Preliminary Memorandum does not contain and
               the Final Memorandum, in the form used by the Placement
               Agent to confirm sales and on the Closing Date, will not
               contain any untrue statement of a material fact or omit to
               state a material fact necessary to make the statements
               therein, in the light of the circumstances under which they
               were made, not misleading, except that the representations
               and warranties set forth in this paragraph do not apply to
               statements or omissions in either Memorandum based upon
               information relating to the Placement Agent furnished to the
               Company in writing by the Placement Agent expressly for use
               therein.

                    (b)  The Company has been duly incorporated, is validly
               existing as a corporation in good standing under the laws of
               the State of Delaware, has the corporate power and authority
               to own its property and to conduct its business as described
               in each Memorandum and is duly qualified to transact
               business and is in good standing in each jurisdiction in
               which the conduct of its business or its ownership or
               leasing of property requires such qualification, except to
               the extent that the failure to be so qualified or be in good
               standing could not reasonably be expected to have a material
               adverse effect on the Company and its subsidiaries, taken as
               a whole.

                    (c)  Each subsidiary of the Company has been duly
               incorporated, is validly existing as a corporation in good
               standing under the laws of the jurisdiction of its
               incorporation, has the corporate power and authority to own
               its property and to conduct its business as described in
               each Memorandum and is duly qualified to transact business
               and is in good standing in each jurisdiction in which the
               conduct of its business or its ownership or leasing of
               property requires such qualification, except to the extent
               that the failure to be so qualified or be in good standing
               could not reasonably be expected to have a material adverse
               effect on the Company and its subsidiaries, taken as a
               whole; all of the issued shares of capital stock of each
               subsidiary of the Company have been duly and validly
               authorized and issued, are fully paid and non-assessable and
               are owned directly by the Company, free and clear of all
               liens, encumbrances, equities or claims.

                    (d)  This Agreement has been duly authorized, executed
               and delivered by each of the Company and NETCOM On-Line
               Communication Services, Inc., a Delaware corporation
               ("NETCOM").

                    (e)  The Registration Rights Agreement has been duly
               authorized by the Company, and when executed and delivered
               by the Company will be a valid and binding agreement of the
               Company, enforceable against the Company in accordance with
               its terms except as (x) the enforceability thereof may be
               limited by the effect of any applicable bankruptcy,
               insolvency, reorganization, moratorium or similar laws now
               or hereafter in effect relating to or affecting creditors'
               rights generally and (y) the availability of equitable
               remedies may be limited by equitable principles of general
               applicability.

                    (f)  The Securities have been duly authorized by the
               Company and, when executed, authenticated and delivered in
               accordance with the Indenture and paid for by the Placement
               Agent in accordance with the terms of this Agreement, will
               (x) be valid and binding obligations of the Company
               enforceable against Company in accordance with their terms,
               except as (A) the enforceability thereof may be limited by
               the effect of applicable bankruptcy, insolvency,
               reorganization, moratorium or similar laws now or hereafter
               in effect relating to or affecting creditors' rights
               generally and (B) rights of acceleration, if applicable, and
               the availability of equitable remedies may be limited by
               equitable principles of general applicability and (y) be
               entitled to the benefits of the Indenture.

                    (g)  The Indenture has been duly authorized by the
               Company and, when executed and delivered by the Company and
               the Trustee, will be a valid and binding agreement of the
               Company enforceable against the Company in accordance with
               its terms except as (x) the enforceability thereof may be
               limited by the effect of applicable bankruptcy, insolvency,
               reorganization, moratorium or similar laws now or hereafter
               in effect relating to or affecting creditors' rights
               generally and (y) rights of acceleration, if applicable, and
               the availability of equitable remedies may be limited by
               equitable principles of general applicability.

                    (h)  The execution and delivery by the Company of, and
               the performance by the Company of its obligations under,
               this Agreement, the Indenture, the Registration Rights
               Agreement and the Securities and the issuance and sale of
               the Securities will not contravene any provision of
               applicable law or the certificate of incorporation or
               by-laws of the Company or any agreement or other instrument
               binding upon the Company or any of its subsidiaries that is
               material to the Company and its subsidiaries, taken as a
               whole, or any judgment, order or decree of any governmental
               body, agency or court having jurisdiction over the Company
               or any subsidiary, and no consent, approval, authorization
               or order of, or qualification with, any governmental body or
               agency is required for the performance by the Company of its
               obligations under this Agreement, the Indenture, the
               Registration Rights Agreement or the Securities or the
               issuance and sale of the Securities, except such as may be
               required by the securities or Blue Sky laws of the various
               states in connection with the offer and sale of the
               Securities.

                    (i)  There has not occurred any material adverse
               change, or any development involving a prospective material
               adverse change, in the condition, financial or otherwise, or
               in the earnings, business or operations of the Company and
               its subsidiaries, taken as a whole, from that set forth in
               the Preliminary Memorandum.

                    (j)  There are no legal or governmental proceedings
               pending or threatened to which the Company or any of its
               subsidiaries is a party or to which any of the properties of
               the Company or any of its subsidiaries is subject other than
               proceedings accurately described in all material respects in
               each Memorandum and proceedings that could not reasonably be
               expected to have a material adverse effect on the Company
               and its subsidiaries, taken as a whole, or on the power or
               ability of the Company to perform its obligations under this
               Agreement, the Indenture, the Registration Rights Agreement
               or the Securities or to consummate the transactions
               contemplated by the Final Memorandum.

                    (k)  The Company and its subsidiaries (i) are in
               compliance with any and all applicable foreign, federal,
               state and local laws and regulations relating to the
               protection of human health and safety, the environment or
               hazardous or toxic substances or wastes, pollutants or
               contaminants ("ENVIRONMENTAL LAWS"), (ii) have received all
               permits, licenses or other approvals required of them under
               applicable Environmental Laws to conduct their respective
               businesses and (iii) are in compliance with all terms and
               conditions of any such permit, license or approval, except
               where such noncompliance with Environmental Laws, failure to
               receive required permits, licenses or other approvals or
               failure to comply with the terms and conditions of such
               permits, licenses or approvals would not, singly or in the
               aggregate, have a material adverse effect on the Company and
               its subsidiaries, taken as a whole.

                    (l)  The Company is not, and after giving effect to the
               offering and sale of the Securities and the application of
               the proceeds thereof as described in the Final Memorandum,
               will not be an "investment company" or an entity
               "controlled" by an "investment company," as such terms are
               defined in the Investment Company Act of 1940, as amended.

                    (m)  Neither the Company nor any affiliate (as defined
               in Rule 501(b) of Regulation D under the Securities Act, an
               "AFFILIATE") of the Company has directly, or through any
               agent, (i) sold, offered for sale, solicited offers to buy
               or otherwise negotiated in respect of, any security (as
               defined in the Securities Act) which is or will be
               integrated with the sale of the Securities in a manner that
               would require the registration under the Securities Act of
               the Securities or (ii) engaged in any form of general
               solicitation or general advertising in connection with the
               offering of the Securities (as those terms are used in
               Regulation D under the Securities Act), or in any manner
               involving a public offering within the meaning of Section
               4(2) of the Securities Act.

                    (n)  None of the Company, its Affiliates or any person
               acting on its or their behalf (other than the Placement
               Agent) has engaged or will engage in any directed selling
               efforts (within the meaning of Regulation S) with respect to
               the Securities and the Company and its Affiliates and any
               person acting on its or their behalf (other than the
               Placement Agent) have complied and will comply with the
               offering restrictions requirement of Regulation S.

                    (o)  It is not necessary in connection with the offer,
               sale and delivery of the Securities to the Placement Agent
               in the manner contemplated by this Agreement to register the
               Securities under the Securities Act or to qualify the
               Indenture under the Trust Indenture Act of 1939, as amended.

                    (p)  The Securities satisfy the requirements set forth
               in Rule 144A(d)(3) under the Securities Act.

                    (q)  The Company has complied with all provisions of
               Section 517.075, Florida Statutes (Chapter 92-198, Laws of
               Florida).

                    (r)  Except as set forth in each Memorandum, the
               Company and its subsidiaries have all necessary permits,
               licenses, authorizations, consents and approvals and have
               made all necessary filings required under any federal,
               state, local or foreign supranational, national or regional
               law, regulation or rule, and have obtained all necessary
               authorizations, consents and approvals from other persons,
               material to the conduct of their respective businesses, in
               each case except to the extent that the failure to obtain
               such permits, licenses, authorizations, consents or
               approvals or to make such filings would not, singly or in
               the aggregate, have a material adverse effect on the
               properties, assets, prospects, condition, financial or
               otherwise, business or operations of the Company and its
               subsidiaries, taken as a whole; except as set forth in each
               Memorandum, the Company and its subsidiaries have not
               received any notice of proceedings which remain unresolved
               relating to revocation or modification of any such permits,
               licenses, authorizations, consents or approvals, nor is the
               Company or any of its subsidiaries in violation of, or in
               default under, any such license, authorization, consent or
               approval or any federal, state, local or foreign
               supranational, national or regional law, regulation or rule
               or any decree, order or judgment applicable to the Company
               or its subsidiaries the effect of which would reasonably be
               expected to have a material adverse effect on the
               properties, assets, condition, financial or otherwise,
               business or operations of the Company and its subsidiaries,
               taken as a whole.

                    (s)  (1) The merger of ICG Acquisition, Inc., a
               Delaware corporation ("ACQUISITION SUB"), with and into
               NETCOM has been consummated pursuant to the Agreement and
               Plan of Merger, dated October 12, 1997, as amended (the
               "MERGER AGREEMENT"), by and among ICG Communications, Inc.,
               a Delaware corporation ("ICG"), Acquisition Sub and NETCOM,
               (2) ICG transferred all of the capital stock of NETCOM to
               the Company and (3) all required consents, waivers and
               agreements in connection with such consummation or transfer,
               including any such consents, waivers and agreements from
               suppliers, customers and lessors of NETCOM, have been
               obtained prior to such consummation or transfer, as the case
               may be, except where the failure to obtain such consents,
               waivers or agreements would not have a material adverse
               effect on the Company and its subsidiaries, taken as a
               whole.

                    2.   Representations and Warranties of NETCOM.  NETCOM
          represents and warrants to, and agrees with, you that:

                    (a)  The Preliminary Memorandum does not contain and
               the Final Memorandum, in the form used by the Placement
               Agent to confirm sales and on the Closing Date, will not
               contain any untrue statement of a material fact or omit to
               state a material fact necessary to make the statements
               therein, in the light of the circumstances under which they
               were made, not misleading, except that the representations
               and warranties set forth in this paragraph apply only to
               statements or omissions in either Memorandum based upon
               information relating to NETCOM and its subsidiaries.

                    (b)  NETCOM has been duly incorporated, is validly
               existing as a corporation in good standing under the laws of
               the State of Delaware, has the corporate power and authority
               to own its property and to conduct its business as described
               in each Memorandum and is duly qualified to transact
               business and is in good standing in each jurisdiction in
               which the conduct of its business or its ownership or
               leasing of property requires such qualification, except to
               the extent that the failure to be so qualified or be in good
               standing could not reasonably be expected to have a material
               adverse effect on NETCOM and its subsidiaries, taken as a
               whole.

                    (c)  Each subsidiary of NETCOM has been duly
               incorporated, is validly existing as a corporation in good
               standing under the laws of the jurisdiction of its
               incorporation, has the corporate power and authority to own
               its property and to conduct its business as described in
               each Memorandum and is duly qualified to transact business
               and is in good standing in each jurisdiction in which the
               conduct of its business or its ownership or leasing of
               property requires such qualification, except to the extent
               that the failure to be so qualified or be in good standing
               could not reasonably be expected to have a material adverse
               effect on NETCOM and its subsidiaries, taken as a whole; all
               of the issued shares of capital stock of each subsidiary of
               NETCOM have been duly and validly authorized and issued, are
               fully paid and non-assessable and are owned directly by
               NETCOM, free and clear of all liens, encumbrances, equities
               or claims.  None of the subsidiaries of NETCOM would be
               considered a "significant subsidiary" under clause (2) of
               Rule 102(w) of Regulations S-X under the Securities Act.

                    (d)  This Agreement has been duly authorized, executed
               and delivered by NETCOM.

                    (e)  The execution and delivery by NETCOM of, and the
               performance by NETCOM of its obligations under, this
               Agreement will not contravene any provision of applicable
               law or the certificate of incorporation or by-laws of NETCOM
               or any agreement or other instrument binding upon NETCOM or
               any of its subsidiaries that is material to NETCOM and its
               subsidiaries, taken as a whole, or any judgment, order or
               decree of any governmental body, agency or court having
               jurisdiction over NETCOM or any subsidiary, and no consent,
               approval, authorization or order of, or qualification with,
               any governmental body or agency is required for the
               performance by NETCOM of its obligations under this
               Agreement.

                    (f)  There has not occurred any material adverse
               change, or any development involving a prospective material
               adverse change, in the condition, financial or otherwise, or
               in the earnings, business or operations of NETCOM and its
               subsidiaries, taken as a whole, from that set forth in the
               Preliminary Memorandum.

                    (g)  There are no legal or governmental proceedings
               pending or threatened to which NETCOM or any of its
               subsidiaries is a party or to which any of the properties of
               NETCOM or any of its subsidiaries is subject other than
               proceedings accurately described in all material respects in
               each Memorandum and proceedings that could not reasonably be
               expected to have a material adverse effect on NETCOM and its
               subsidiaries, taken as a whole, or on the power or ability
               of NETCOM to perform its obligations under this Agreement.

                    (h)  NETCOM and its subsidiaries (i) are in compliance
               with Environmental Laws, (ii) have received all permits,
               licenses or other approvals required of them under
               applicable Environmental Laws to conduct their respective
               businesses and (iii) are in compliance with all terms and
               conditions of any such permit, license or approval, except
               where such noncompliance with Environmental Laws, failure to
               receive required permits, licenses or other approvals or
               failure to comply with the terms and conditions of such
               permits, licenses or approvals would not, singly or in the
               aggregate, have a material adverse effect on NETCOM and its
               subsidiaries, taken as a whole.

                    (i)  NETCOM is not, and after giving effect to the
               offering and sale of the Securities and the application of
               the proceeds thereof as described in the Final Memorandum,
               will not be an "investment company" or an entity
               "controlled" by an "investment company," as such terms are
               defined in the Investment Company Act of 1940, as amended.

                    (j)  NETCOM has complied with all provisions of Section
               517.075, Florida statutes (Chapter 92-198, Laws of Florida).

                    (k)  Except as set forth in each Memorandum, NETCOM and
               its subsidiaries have all necessary permits, licenses,
               authorizations, consents and approvals and have made all
               necessary filings required under any federal, state, local
               or foreign supranational, national or regional law,
               regulation or rule, and have obtained all necessary
               authorizations, consents and approvals from other persons,
               material to the conduct of their respective businesses, in
               each case except to the extent that the failure to obtain
               such permits, licenses, authorizations, consents or
               approvals or to make such filings would not, singly or in
               the aggregate, have a material adverse effect on the
               properties, assets, prospects, condition, financial or
               otherwise, business or operations of NETCOM and its
               subsidiaries, taken as a whole; except as set forth in each
               Memorandum, NETCOM and its subsidiaries have not received
               any notice of proceedings which remain unresolved relating
               to revocation or modification of any such permits, licenses,
               authorizations, consents or approvals, nor is NETCOM or any
               of its subsidiaries in violation of, or in default under,
               any such license, authorization, consent or approval or any
               federal, state, local or foreign supranational, national or
               regional law, regulation or rule or any decree, order or
               judgment applicable to NETCOM or its subsidiaries the effect
               of which would reasonably be expected to have a material
               adverse effect on the properties, assets, condition,
               financial or otherwise, business or operations of NETCOM and
               its subsidiaries, taken as a whole.

                    (l)  Subsequent to the date as of which information is
               given in the Preliminary Memorandum, (1) NETCOM and its
               subsidiaries have not incurred any material liability or
               obligation, direct or contingent, nor entered into any
               material transaction not in the ordinary course of business;
               and (2) there has not been any material change in short-term
               debt or long-term debt of NETCOM and its subsidiaries,
               except in each case as described in the Final Memorandum.

                    (m)  NETCOM and its subsidiaries have good and
               marketable title in fee simple to all real property and good
               and marketable title to all personal property owned by them
               which is material to the business of NETCOM and its
               subsidiaries, in each case free and clear of all liens,
               encumbrances and defects except such as are described in
               each Memorandum or such as do not materially affect the
               value of such property and do not interfere with the use
               made and proposed to be made of such property by NETCOM and
               its subsidiaries; and any real property and buildings held
               under lease by NETCOM and its subsidiaries are held by them
               under valid, subsisting and enforceable leases with such
               exceptions as are not material and do not interfere with the
               use made and proposed to be made of such property and
               buildings by NETCOM and its subsidiaries, in each case
               except as described in each Memorandum.

                    (n)  NETCOM and its subsidiaries own or possess, or can
               acquire on reasonable terms, all material patents, patent
               rights, licenses, inventions, copyrights, know-how
               (including trade secrets and other unpatented and/or
               unpatentable proprietary or confidential information,
               systems or procedures), trademarks, service marks and trade
               names currently employed by them in connection with the
               business now operated by them, and neither NETCOM nor any of
               its subsidiaries has received any notice of infringement of
               or conflict with asserted rights of others with respect to
               any of the foregoing which, singly or in the aggregate, if
               the subject of an unfavorable decision, ruling or finding,
               would have a material adverse affect on NETCOM and its
               subsidiaries, taken as a whole.

                    (o)  No material labor dispute with the employees of
               NETCOM or any of its subsidiaries exists, except as
               described in each Memorandum, or, to the knowledge of
               NETCOM, is imminent; and NETCOM is not aware of any
               existing, threatened or imminent labor disturbance by the
               employees of any of its principal suppliers, manufacturers
               or contractors that could have a material adverse effect on
               NETCOM and its subsidiaries, taken as a whole.

                    (p)  NETCOM and its subsidiaries are insured by the
               insurers of recognized financial responsibility against such
               losses and risks and in such amounts as are prudent and
               customary in the businesses in which they are engaged;
               neither NETCOM nor any of its subsidiaries has been refused
               any insurance coverage sought or applied for; and neither
               NETCOM nor any of its subsidiaries has any reason to believe
               that it will not be able to renew its existing insurance
               coverage as and when such coverage expires or to obtain
               similar coverage from similar insurers as may be necessary
               to continue its business at a cost that would not have a
               material adverse effect on NETCOM and its subsidiaries,
               taken as a whole, except as described in each Memorandum.

                    (q)  NETCOM and each of its subsidiaries maintain a
               system of internal accounting controls sufficient to provide
               reasonable assurance that (1) transactions are executed in
               accordance with management's general or specific
               authorizations; (2) transactions are recorded as necessary
               to permit preparation of financial statements in conformity
               with generally accepted accounting principles and to
               maintain asset accountability; (3) access to assets is
               permitted only in accordance with management's general or
               specific authorization; and (4) the recorded accountability
               for assets is compared with the existing assets at
               reasonable intervals and appropriate action is taken with
               respect to any differences.

                    (r)  (1) The merger of Acquisition Sub with and into
               NETCOM has been consummated pursuant to the Merger
               Agreement, (2) ICG transferred all of the capital stock of
               NETCOM to the Company and (3) all required consents, waivers
               and agreements in connection with such consummation or
               transfer, including any such consents, waivers and
               agreements from suppliers, customers and lessors of NETCOM,
               have been obtained prior to such consummation or transfer,
               as the case may be, except where the failure to obtain such
               consents, waivers or agreements would not have a material
               adverse effect on the Company and its subsidiaries, taken as
               a whole.

                    3.   Agreements to Sell and Purchase.  The Company
          hereby agrees to sell to the Placement Agent, and the Placement
          Agent, upon the basis of the representations and warranties
          herein contained, but subject to the conditions hereinafter
          stated, agrees to purchase from the Company the Securities at a
          purchase price of $291,553,773 for the Securities plus accrued
          original issue discount, if any, from February 12, 1998 to the
          date of payment and delivery.

                    4.   Terms of Offering.  The Placement Agent has
          advised the Company that it will make an offering of the
          Securities purchased by it hereunder on the terms set forth in
          the Final Memorandum, as soon as practicable after this Agreement
          is entered into as in its judgment is advisable.

                    5.   Payment and Delivery.  Payment for the Securities
          shall be made against delivery of the Securities at a closing
          (the "CLOSING") to be held at the office of Shearman & Sterling,
          599 Lexington Avenue, New York, New York, at 9:00 A.M., New York
          City time, on February 12, 1998 or at such other time on the same
          or such other date, not later than February 27, 1998, as shall be
          designated in writing by you.  The time and date of such payment
          are herein referred to as the "CLOSING DATE".  Payment for the
          Securities shall be made by wire transfer to an account
          previously designated to the Placement Agent by the Company in
          immediately available funds.

                    Certificates for the Securities shall be in definitive
          form or global form, as specified by you, and registered in such
          names and in such denominations as you shall request in writing
          not later than one full business day prior to the Closing Date.
          The certificates evidencing the Securities shall be delivered to
          you on the Closing Date, with any transfer taxes payable in
          connection with the transfer of the Securities to the Placement
          Agent duly paid, against payment of the purchase price therefor.

                    6.   Conditions to the Placement Agent's Obligations. 
          The obligations of the Placement Agent to purchase and pay for
          the Securities on the Closing Date are subject to the following
          conditions:

                    (a)  Subsequent to the execution and delivery of this
               Agreement and prior to the Closing Date there shall not have
               occurred any change, or any development involving a
               prospective change, in the condition, financial or
               otherwise, or in the earnings, business or operations of the
               Company and its subsidiaries, taken as a whole, from that
               set forth in the Preliminary Memorandum that, in your
               reasonable judgment, is material and adverse and that makes
               it, in your reasonable judgment, impracticable to market the
               Securities on the terms and in the manner contemplated in
               the Final Memorandum.

                    (b)  You shall have received on the Closing Date
               certificates, dated the Closing Date and signed,
               respectively, by an executive officer of the Company and 
               NETCOM to the effect that the representations and warranties
               of the Company and NETCOM contained in this Agreement are
               true and correct as of the Closing Date and that each of the
               Company and NETCOM has complied with all of the agreements
               and satisfied all of the conditions on its part to be
               performed or satisfied pursuant to the transactions
               contemplated hereby or by the Memorandum on or before the
               Closing Date.

                    The officers signing and delivering such certificates
               may rely upon the best of their knowledge as to proceedings
               threatened. 

                    (c)  You shall have received on the Closing Date an
               opinion of Reid & Priest LLP, independent counsel for the
               Company and special counsel for NETCOM, dated the Closing
               Date, to the effect set forth in Exhibit B.  Such opinion
               shall be rendered to you at the request of the Company and
               shall so state therein.

                    (d)  You shall have received on the Closing Date an
               opinion of Pillsbury, Madison & Sutro LLP, independent
               counsel for NETCOM, dated the Closing Date, to the effect
               set forth in Exhibit C.  Such opinion shall be rendered to
               you at the request of NETCOM or the Company and shall so
               state therein.

                    (e)  You shall have received on the Closing Date an
               opinion of Shearman & Sterling, counsel for the Placement
               Agent, dated the Closing Date, with respect to such matters
               as you may request.

                    (f)  You shall have received on each of the date hereof
               and the Closing Date a letter, dated the date hereof or the
               Closing Date, as the case may be, in form and substance
               satisfactory to you from Ernst & Young LLP, independent
               public accountants, containing statements and information of
               the type ordinarily included in accountants  "comfort
               letters" to underwriters with respect to the financial
               statements and certain financial information contained in
               the Final Memorandum; provided that the letters delivered on
               the Closing Date shall use a "cut-off date" not earlier than
               the date hereof.

                    (g)  You shall have received on the date hereof a
               letter, dated the date hereof, in form and substance
               satisfactory to you from KPMG Peat Marwick LLP, independent
               public accountants, containing statements and information of
               the type ordinarily included in accountants  "comfort
               letters" to underwriters with respect to certain financial
               information contained in the Final Memorandum.

                    (h)  The Placement Agent and its counsel shall have
               been furnished with such other documents and certificates as
               they shall reasonably request.

                    7.   Covenants of the Company. In further consideration
          of the agreements of the Placement Agent contained in this
          Agreement, the Company covenants and agrees as follows:

                    (a)  To furnish to you in New York City, without
               charge, prior to 5:00 P.M. New York City time on the
               business day next succeeding the date of this Agreement and
               during the period mentioned in Section 7(c), as many copies
               of the Final Memorandum and any supplements and amendments
               thereto as you may reasonably request.

                    (b)  Before amending or supplementing either
               Memorandum, to furnish to you a copy of each such proposed
               amendment or supplement and not to use any such proposed
               amendment or supplement to which you reasonably object.

                    (c)  If, during such period after the date hereof and
               prior to the date on which all of the Securities shall have
               been sold by the Placement Agent, any event shall occur or
               condition exist as a result of which it is necessary in your
               judgment to amend or supplement the Final Memorandum in
               order to make the statements therein, in the light of the
               circumstances when the Final Memorandum is delivered to a
               purchaser, not misleading, or if, in the opinion of counsel
               for the Placement Agent, it is necessary to amend or
               supplement the Final Memorandum to comply with applicable
               law, forthwith to prepare and furnish, at its own expense,
               to the Placement Agent, either amendments or supplements to
               the Final Memorandum so that the statements in the Final
               Memorandum as so amended or supplemented will not, in the
               light of the circumstances when the Final Memorandum is
               delivered to a purchaser, be misleading or so that the Final
               Memorandum, as amended or supplemented, will comply with
               applicable law.

                    (d)  To endeavor to qualify the Securities for offer
               and sale under the securities or Blue Sky laws of such
               jurisdictions as you shall reasonably request.

                    (e)  Whether or not any sale of the Securities is
               consummated, to pay all expenses incident to the performance
               of its obligations under this Agreement, including:  (i) the
               preparation of each Memorandum and all amendments and
               supplements thereto, (ii) the preparation, issuance and
               delivery of the Securities, (iii) the fees and disbursements
               of the Company's and NETCOM's counsel and accountants and
               the Trustee and its counsel, (iv) the qualification of the
               Securities under securities or Blue Sky laws in accordance
               with the provisions of Section 7(d), including filing fees
               and the fees and disbursements of counsel for the Placement
               Agent in connection therewith and in connection with the
               preparation of any Blue Sky or legal investment memoranda,
               (v) the printing and delivery to the Placement Agent in
               quantities as hereinabove stated of copies of the Memorandum
               and any amendments or supplements thereto, (vi) any fees
               charged by rating agencies for the rating of the Securities,
               (vii) the fees and expenses incurred in connection with the
               admission of the Securities for trading in PORTAL or any
               other market system, (viii) the costs and expenses incurred
               by the Company and NETCOM relating to investor presentations
               on any "road show" undertaken in connection with the
               marketing of the Securities, including, without limitation,
               expenses associated with the production of road show slides
               and graphics, fees and expenses of any consultants engaged
               in connection with the road show presentations with the
               prior approval of the Company, travel and lodging expense of
               the representatives and officers of the Company and NETCOM
               and any such consultants, and the cost of any aircraft
               chartered in connection with the road show, and (ix) all
               other costs and expenses incident to the performance of the
               obligations of the Company and ICG hereunder for which
               provision is not otherwise made in this Section.

                    (f)  Neither the Company nor any Affiliate will sell,
               offer for sale or solicit offers to buy or otherwise
               negotiate in respect of any security (as defined in the
               Securities Act) which could be integrated with the sale of
               the Securities in a manner which would require the
               registration under the Securities Act of the Securities.

                    (g)  Not to solicit any offer to buy or offer or sell
               the Securities by means of any form of general solicitation
               or general advertising (as those terms are used in
               Regulation D under the Securities Act) or in any manner
               involving a public offering within the meaning of Section
               4(2) of the Securities Act.

                    (h)  While any of the Securities remain "restricted
               securities" within the meaning of the Securities Act, to
               make available, upon request, to any seller of such
               Securities, the information specified in Rule 144A(d)(4)
               under the Securities Act, unless the Company is then subject
               to Section 13 or 15(d) of the Securities Exchange Act of
               1934, as amended (the "EXCHANGE ACT").

                    (i)  To use its best efforts to permit the Securities
               to be designated PORTAL securities in accordance with the
               rules and regulations adopted by the National Association of
               Securities Dealers, Inc. relating to trading in the PORTAL
               Market.

                    (j)  None of the Company, its Affiliates or any person
               acting on its or their behalf (other than the Placement
               Agent) will engage in any directed selling efforts (as that
               term is defined in Regulation S) with respect to the
               Securities, and the Company and its Affiliates and each
               person acting on its or their behalf (other than the
               Placement Agent) will comply with the offering restrictions
               requirement of Regulation S.

                    (k)  During the period of two years after the Closing
               Date, the Company will not, and will not permit any of its
               affiliates (as defined in Rule 144A under the Securities
               Act) to, resell any of the Securities which constitute
               "restricted securities" under Rule 144A that have been
               reacquired by any of them.

                    8.   Offering of Securities; Restrictions on Transfer. 
          (a)  The Placement Agent represents and warrants that it is a
          qualified institutional buyer as defined in Rule 144A under the
          Securities Act (a "QIB"). The Placement Agent agrees with the
          Company that (i) it will not solicit offers for, or offer or
          sell, such Securities by any form of general solicitation or
          general advertising (as those terms are used in Regulation D
          under the Securities Act) or in any manner involving a public
          offering within the meaning of Section 4(2) of the Securities Act
          and (ii) it will solicit offers for such Securities only from,
          and will offer such Securities only to, persons that it
          reasonably believes to be (A) in the case of offers inside the
          United States, (1) QIBs or (2) other institutional accredited
          investors (as defined in Rule 501(a)(1), (2), (3) or (7) under
          the Securities Act ("INSTITUTIONAL ACCREDITED INVESTORS") that,
          prior to their purchase of the Securities, deliver to the
          Placement Agent a letter containing the representations and
          agreements set forth in Exhibit A to the Final Memorandum and (B)
          in the case of offers outside the United States, to persons other
          than U.S. persons ("FOREIGN PURCHASERS," which term shall include
          dealers or other professional fiduciaries in the United States
          acting on a discretionary basis for foreign beneficial owners
          (other than an estate or trust)) in reliance upon Regulation S
          under the Securities Act that, in each case, in purchasing such
          Securities are deemed to have represented and agreed as provided
          in the Final Memorandum under the caption "Transfer
          Restrictions".

                    (b)  The Placement Agent represents, warrants, and
          agrees with respect to offers and sales outside the United States
          that:

                    (i)  it understands that no action has been or will be
               taken in any jurisdiction by the Company that would permit a
               public offering of the Securities, or possession or
               distribution of either Memorandum or any other offering or
               publicity material relating to the Securities, in any
               country or jurisdiction where action for that purpose is
               required;

                    (ii) it will comply with all applicable laws and
               regulations in each jurisdiction in which it acquires,
               offers, sells or delivers Securities or has in its
               possession or distributes either Memorandum or any such
               other material, in all cases at its own expense;

                    (iii)     the Securities have not been registered under
               the Securities Act and may not be offered or sold within the
               United States or to, or for the account or benefit of, U.S.
               persons except in accordance with Rule 144A or Regulation S
               under the Securities Act or pursuant to another exemption
               from the registration requirements of the Securities Act;

                    (iv) it has offered the Securities and will offer and
               sell the Securities (A) as part of its distribution at any
               time and (B) otherwise until 40 days after the later of the
               commencement of the offering and the Closing Date, only in
               accordance with Rule 903 of Regulation S or as otherwise
               permitted in Section 8(a); accordingly, neither the
               Placement Agent, its Affiliates nor any persons acting on
               its or their behalf have engaged or will engage in any
               directed selling efforts (within the meaning of Regulation
               S) with respect to the Securities, and any Placement Agent,
               its Affiliates and any such persons have complied and will
               comply with the offering restrictions requirement of
               Regulation S;

                    (v)  it has (A) not offered or sold and, prior to the
               date six months after the Closing Date, will not offer or
               sell any Securities to persons in the United Kingdom except
               to persons whose ordinary activities involve them in
               acquiring, holding, managing or disposing of investments (as
               principal or agent) for the purposes of their businesses or
               otherwise in circumstances which have not resulted and will
               not result in an offer to the public in the United Kingdom
               within the meaning of the Public Offers of Securities
               Regulations 1995; (B) complied and will comply with all
               applicable provisions of the Financial Services Act 1986
               with respect to anything done by it in relation to the
               Securities in, from or otherwise involving the United
               Kingdom, and (C) only issued or passed on and will only
               issue or pass on in the United Kingdom any document received
               by it in connection with the issue of the Securities to a
               person who is of a kind described in Article 11(3) of the
               Financial Services Act 1986 (Investment Advertisements)
               (Exemptions) Order 1996 or is a person to whom such document
               may otherwise lawfully be issued or passed on;

                    (vi) it understands that the Securities have not been
               and will not be registered under the Securities and Exchange
               Law of Japan, and represents that it has not offered or
               sold, and agrees not to offer or sell, directly or
               indirectly, any Securities in Japan or for the account of
               any resident thereof except pursuant to any exemption from
               the registration requirements of the Securities and Exchange
               Law of Japan and otherwise in compliance with applicable
               provisions of Japanese law; and

                    (vii)     it agrees that, at or prior to confirmation
               of sales of the Securities, it will have sent to each
               distributor, dealer or person receiving a selling
               concession, fee or other remuneration that purchases
               Securities from it during the restricted period a
               confirmation or notice to substantially the following
               effect:

                    "The Securities covered hereby have not been registered
               under the U.S. Securities Act of 1933, as amended (the
               "SECURITIES ACT"), and may not be offered and sold within
               the United States or to, or for the account or benefit of,
               U.S. persons (i) as part of their distribution at any time
               or (ii) otherwise until 40 days after the later of the
               commencement of the offering and the closing date, except in
               either case in accordance with Regulation S (or Rule 144A if
               available) under the Securities Act.  Terms used above have
               the meaning given to them by Regulation S".

          Terms used in this Section 8(b) have the meanings given to them
          by Regulation S.

                    9.   Indemnity and Contribution.  (a)  Each of the
          Company and NETCOM jointly and severally agrees to indemnify and
          hold harmless the Placement Agent, and each person, if any, who
          controls the Placement Agent within the meaning of either
          Section 15 of the Securities Act or Section 20 of the Exchange
          Act, or is under common control with, or is controlled by, the
          Placement Agent, from and against any and all losses, claims,
          damages and liabilities (including, without limitation, any legal
          or other expenses reasonably incurred by the Placement Agent or
          any such controlling or affiliated person in connection with
          defending or investigating any such action or claim) caused by
          any untrue statement or alleged untrue statement of a material
          fact contained in either Memorandum (as amended or supplemented
          if the Company shall have furnished any amendments or supplements
          thereto), or caused by any omission or alleged omission to state
          therein a material fact necessary to make the statements therein
          in light of the circumstances under which they were made not
          misleading, except insofar as such losses, claims, damages or
          liabilities are caused by any such untrue statement or omission
          or alleged untrue statement or omission based upon information
          relating to the Placement Agent furnished to the Company in
          writing by the Placement Agent expressly for use therein.

                    (b)  The Placement Agent agrees to indemnify and hold
          harmless the Company and NETCOM, their directors, their officers
          and each person, if any, who controls the Company or NETCOM
          within the meaning of either Section 15 of the Securities Act or
          Section 20 of the Exchange Act or is under common control with,
          or is controlled by, the Company or NETCOM to the same extent as
          the foregoing indemnity from the Company and NETCOM to the
          Placement Agent, but only with reference to information relating
          to the Placement Agent furnished to the Company in writing by the
          Placement Agent expressly for use in either Memorandum or any
          amendments or supplements thereto.

                    (c)  In case any proceeding (including any governmental
          investigation) shall be instituted involving any person in
          respect of which indemnity may be sought pursuant to either
          paragraph (a) or (b) of this Section 9, such person (the
          "INDEMNIFIED PARTY") shall promptly notify the person against
          whom such indemnity may be sought (the "INDEMNIFYING PARTY") in
          writing and the indemnifying party, upon request of the
          indemnified party, shall retain counsel reasonably satisfactory
          to the indemnified party to represent the indemnified party and
          any others the indemnifying party may designate in such
          proceeding and shall pay the fees and disbursements of such
          counsel related to such proceeding.  In any such proceeding, any
          indemnified party shall have the right to retain its own counsel,
          but the fees and expenses of such counsel shall be at the expense
          of such indemnified party unless (i) the indemnifying party and
          the indemnified party shall have mutually agreed to the retention
          of such counsel or (ii) the named parties to any such proceeding
          (including any impleaded parties) include both the indemnifying
          party and the indemnified party and representation of both
          parties by the same counsel would be inappropriate due to actual
          or potential differing interests between them.  It is understood
          that the indemnifying party shall not, in connection with any
          proceeding or related proceedings in the same jurisdiction, be
          liable for the fees and expenses of more than one separate firm
          (in addition to any local counsel) for all such indemnified
          parties and that all such fees and expenses shall be reimbursed
          as they are incurred.  Such firm shall be designated in writing
          by the Placement Agent in the case of parties indemnified
          pursuant to paragraph (a) above and by the Company in the case of
          parties indemnified pursuant to paragraph (b) above.  The
          indemnifying party shall not be liable for any settlement of any
          proceeding effected without its written consent, but if settled
          with such consent or if there be a final judgment for the
          plaintiff, the indemnifying party agrees to indemnify the
          indemnified party from and against any loss or liability by
          reason of such settlement or judgment.  Notwithstanding the
          foregoing sentence, if at any time an indemnified party shall
          have requested an indemnifying party to reimburse the indemnified
          party for fees and expenses of counsel as contemplated by the
          second and third sentences of this paragraph, the indemnifying
          party agrees that it shall be liable for any settlement of any
          proceeding effected without its written consent if (i) such
          settlement is entered into more than 30 days after receipt by
          such indemnifying party of the aforesaid request and (ii) such
          indemnifying party shall not have reimbursed the indemnified
          party in accordance with such request prior to the date of such
          settlement.  No indemnifying party shall, without the prior
          written consent of the indemnified party, effect any settlement
          of any pending or threatened proceeding in respect of which any
          indemnified party is or could have been a party and indemnity
          could have been sought hereunder by such indemnified party,
          unless such settlement includes an unconditional release of such
          indemnified party from all liability on claims that are the
          subject matter of such proceeding.

                    (d)  To the extent the indemnification provided for in
          paragraph (a) or (b) of this Section 9 is unavailable to an
          indemnified party or insufficient in respect of any losses,
          claims, damages or liabilities, then each indemnifying party
          under such paragraph, in lieu of indemnifying such indemnified
          party thereunder, shall contribute to the amount paid or payable
          by such indemnified party as a result of such losses, claims,
          damages or liabilities (i) in such proportion as is appropriate
          to reflect the relative benefits received by the Company and
          NETCOM, on the one hand, and the Placement Agent, on the other
          hand, from the offering of the Securities or (ii) if the
          allocation provided by clause (i) above is not permitted by
          applicable law, in such proportion as is appropriate to reflect
          not only the relative benefits referred to in clause (i) above
          but also the relative fault of the Company and NETCOM on the one
          hand and the Placement Agent on the other hand in connection with
          the statements or omissions that resulted in such losses, claims,
          damages or liabilities, as well as any other relevant equitable
          considerations.  The relative benefits received by the Company
          and NETCOM on the one hand and the Placement Agent on the other
          hand in connection with the offering of the Securities shall be
          deemed to be in the same respective proportions as the net
          proceeds from the offering of the Securities (before deducting
          expenses) received by the Company and NETCOM and the total
          discounts and commissions received by the Placement Agent in
          respect thereof bear to the aggregate offering price of the
          Securities.  The relative fault of the Company and NETCOM on the
          one hand and of the Placement Agent on the other hand shall be
          determined by reference to, among other things, whether the
          untrue or alleged untrue statement of a material fact or the
          omission or alleged omission to state a material fact relates to
          information supplied by the Company or NETCOM or by the Placement
          Agent and the parties' relative intent, knowledge, access to
          information and opportunity to correct or prevent such statement
          or omission.

                    (e)  The Company, NETCOM and the Placement Agent agree
          that it would not be just or equitable if contribution pursuant
          to this Section 9 were determined by pro rata allocation or by
                                               --- ----
          any other method of allocation that does not take account of the
          equitable considerations referred to in paragraph (d) of this
          Section 9.  The amount paid or payable by an indemnified party as
          a result of the losses, claims, damages and liabilities referred
          to in paragraph (d) of this Section 9 shall be deemed to include,
          subject to the limitations set forth above, any legal or other
          expenses reasonably incurred by such indemnified party in
          connection with investigating or defending any such action or
          claim.  Notwithstanding the provisions of this Section 9, the
          Placement Agent shall not be required to contribute any amount in
          excess of the amount by which the total price at which the
          Securities resold by it in the initial placement of the
          Securities were offered to investors exceeds the amount of any
          damages that the Placement Agent has otherwise been required to
          pay by reason of such untrue or alleged untrue statement or
          omission or alleged omission.  No person guilty of fraudulent
          misrepresentation (within the meaning of Section 11(f) of the
          Securities Act) shall be entitled to contribution from any person
          who was not guilty of such fraudulent misrepresentation.  The
          indemnity and contribution provisions contained in this Section 9
          and the representations and warranties of the Company and NETCOM
          contained in this Agreement shall remain operative and in full
          force and effect regardless of (i) any termination of this
          Agreement, (ii) any investigation made by or on behalf of the
          Placement Agent or any person controlling the Placement Agent or
          by or on behalf of the Company or NETCOM, their officers or
          directors or any person controlling the Company or NETCOM and
          (iii) acceptance of and payment for any of the Securities.  The
          remedies provided for in this Section 9 are not exclusive and
          shall not limit any rights or remedies which may otherwise be
          available to any indemnified party at law or in equity.

                    10.  Termination.  This Agreement shall be subject to
          termination by notice given by you to the Company, if (a) after
          the execution and delivery of this Agreement and prior to the
          Closing Date (i) trading generally shall have been suspended or
          materially limited on or by, as the case may be, any of the New
          York Stock Exchange, the American Stock Exchange, the National
          Association of Securities Dealers, Inc., the Chicago Board of
          Options Exchange, the Chicago Mercantile Exchange or the Chicago
          Board of Trade, (ii) trading of any securities of the Company or
          ICG shall have been suspended on any exchange or in any
          over-the-counter market, (iii) a general moratorium on commercial
          banking activities in New York shall have been declared by either
          Federal or New York State authorities or (iv) there shall have
          occurred any outbreak or escalation of hostilities or any change
          in financial markets or any calamity or crisis that, in your
          judgment, is material and adverse and (b) in the case of any of
          the events specified in clauses 10(a)(i) through 10(a)(iv), such
          event, singly or together with any other such event, makes it, in
          your judgment, impracticable to market the Securities on the
          terms and in the manner contemplated in the Final Memorandum.

                    11.  Effectiveness.  This Agreement shall become
          effective upon the execution and delivery hereof by the parties
          hereto.

                     If this Agreement shall be terminated by the Placement
          Agent because of any failure or refusal on the part of the
          Company or NETCOM to comply with the terms or to fulfill any of
          the conditions of this Agreement, or if for any reason the
          Company or NETCOM shall be unable to perform its obligations
          under this Agreement, the Company will reimburse the Placement
          Agent for all out-of-pocket expenses (including the reasonable
          fees and disbursements of its counsel) reasonably incurred by the
          Placement Agent in connection with this Agreement or the offering
          contemplated hereunder.

                    12.  Counterparts.  This Agreement may be signed
          manually or by facsimile in any number of counterparts, each of
          which shall be deemed to be an original, with the same effect as
          if the signatures thereto and hereto were upon the same
          instrument.

                    13.  Applicable Law; Submission to Jurisdiction.  This
          Agreement shall be governed by and construed in accordance with
          the laws of the State of New York.  Each of the Company and
          NETCOM agrees to submit to the jurisdiction of any federal or
          state court located in The City of New York in any suit, action
          or proceeding with respect to this Agreement and for actions
          brought under the U.S. federal or state securities laws brought
          in any such court.

                    14.  Headings.  The headings of the sections of this
          Agreement have been inserted for convenience of reference only
          and shall not be deemed a part of this Agreement.


                                        Very truly yours,

                                        ICG SERVICES, INC.


                                        By:  /s/ Don Teague
                                            -------------------------------
                                             Name: H. Don Teague
                                             Title: Executive Vice President,
                                                    General Counsel and
                                                    Secretary




                                        NETCOM ON-LINE COMMUNICATION 
                                          SERVICES, INC.

                                        By:   /s/ James D. Grenfell
                                             -----------------------------
                                             Name: James D. Grenfell
                                             Title: Executive Vice President
                                                    and Chief Financial Officer




          Accepted as of the date hereof
          Morgan Stanley & Co. Incorporated


          By:  /s/ James B. Avery
              --------------------------
              Name: James B. Avery
              Title: Principal







               THIS NOTE HAS NOT BEEN REGISTERED UNDER THE U.S. SECURITIES
               ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR ANY STATE
               SECURITIES LAWS, AND ACCORDINGLY, MAY NOT BE OFFERED, SOLD, 
               PLEDGED OR OTHERWISE TRANSFERRED WITHIN THE UNITED STATES OR
               TO, OR FOR THE ACCOUNT OR BENEFIT OF, U.S. PERSONS EXCEPT AS
               SET FORTH IN THE FOLLOWING SENTENCE.  BY ITS ACQUISITION
               HEREOF, THE HOLDER (1) REPRESENTS THAT (A) IT IS A
               "QUALIFIED INSTITUTIONAL BUYER" (AS DEFINED IN RULE 144A
               UNDER THE SECURITIES ACT) OR (B) IT IS AN INSTITUTIONAL
               "ACCREDITED INVESTOR" (AS DEFINED IN RULE 501(a)(1), (2),
               (3) OR (7) OF REGULATION D UNDER THE SECURITIES ACT) (AN
               "INSTITUTIONAL ACCREDITED INVESTOR") OR (C) IT IS NOT A U.S.
               PERSON AND IS ACQUIRING THIS NOTE IN AN OFFSHORE TRANSACTION
               IN COMPLIANCE WITH REGULATION S UNDER THE SECURITIES ACT;
               (2) AGREES THAT IT WILL NOT, WITHIN THE TIME PERIOD REFERRED
               TO IN RULE 144(k) (TAKING INTO ACCOUNT THE PROVISIONS OF
               RULE 144(d) UNDER THE SECURITIES ACT, IF APPLICABLE), RESELL
               OR OTHERWISE TRANSFER THIS NOTE EXCEPT (A) TO THE COMPANY OR
               ANY SUBSIDIARY THEREOF, (B) TO A QUALIFIED INSTITUTIONAL
               BUYER IN COMPLIANCE WITH RULE 144A UNDER THE SECURITIES ACT,
               (C) INSIDE THE UNITED STATES TO AN INSTITUTIONAL ACCREDITED
               INVESTOR THAT, PRIOR TO SUCH TRANSFER, FURNISHES TO THE
               TRUSTEE A SIGNED LETTER CONTAINING CERTAIN REPRESENTATIONS
               AND AGREEMENTS RELATING TO THE RESTRICTIONS ON TRANSFER OF
               THIS NOTE (THE FORM OF WHICH LETTER CAN BE OBTAINED FROM THE
               TRUSTEE) AND IF SUCH TRANSFER IS IN RESPECT OF AN AGGREGATE
               ACCRETED VALUE OF NOTES AT THE TIME OF TRANSFER OF LESS THAN
               $250,000 AN OPINION OF COUNSEL ACCEPTABLE TO THE COMPANY
               THAT SUCH TRANSFER IS IN COMPLIANCE WITH THE SECURITIES ACT,
               (D) OUTSIDE THE UNITED STATES IN AN OFFSHORE TRANSACTION IN
               COMPLIANCE WITH RULE 904 UNDER THE SECURITIES ACT,
               (E) PURSUANT TO THE EXEMPTION FROM REGISTRATION PROVIDED BY
               RULE 144 UNDER THE SECURITIES ACT (IF AVAILABLE) OR
               (F) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER
               THE SECURITIES ACT AND (3) AGREES THAT IT WILL DELIVER TO
               EACH PERSON TO WHOM THIS NOTE IS TRANSFERRED A NOTICE
               SUBSTANTIALLY TO THE EFFECT OF THIS LEGEND.  IN CONNECTION
               WITH ANY TRANSFER OF THIS NOTE WITHIN THE TIME PERIOD
               REFERRED TO ABOVE, THE HOLDER MUST CHECK THE APPROPRIATE BOX
               SET FORTH ON THE REVERSE HEREOF RELATING TO THE MANNER OF
               SUCH TRANSFER AND SUBMIT THIS CERTIFICATE TO THE TRUSTEE. 
               IF THE PROPOSED TRANSFEREE IS AN INSTITUTIONAL ACCREDITED
               INVESTOR, THE HOLDER MUST, PRIOR TO SUCH TRANSFER, FURNISH
               TO EACH OF THE TRUSTEE AND THE COMPANY SUCH CERTIFICATIONS,
               LEGAL OPINIONS OR OTHER INFORMATION AS SUCH PERSONS MAY
               REASONABLY REQUIRE TO CONFIRM THAT SUCH TRANSFER IS BEING
               MADE PURSUANT TO AN EXEMPTION FROM, OR IN A TRANSACTION NOT
               SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES
               ACT.  AS USED HEREIN, THE TERMS "OFFSHORE TRANSACTION,"
               "UNITED STATES" AND "U.S. PERSON" HAVE THE MEANINGS GIVEN TO
               THEM BY REGULATION S UNDER THE SECURITIES ACT.  THE
               INDENTURE CONTAINS A PROVISION REQUIRING THE TRUSTEE TO
               REFUSE TO REGISTER ANY TRANSFER OF THIS NOTE IN VIOLATION OF
               THE FOREGOING RESTRICTIONS.

               UNLESS THIS GLOBAL NOTE IS PRESENTED BY AN AUTHORIZED
               REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY TO THE
               COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER,
               EXCHANGE OR PAYMENT, AND ANY NOTE ISSUED IS REGISTERED
               IN THE NAME OF CEDE & CO. OR TO SUCH OTHER ENTITY AS IS
               REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE
               DEPOSITORY TRUST COMPANY OR SUCH OTHER REPRESENTATIVE
               OF THE DEPOSITORY TRUST COMPANY OR SUCH OTHER NAME AS
               IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE
               DEPOSITORY TRUST COMPANY (AND ANY PAYMENT HEREON IS
               MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS
               REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE
               DEPOSITORY TRUST COMPANY), ANY TRANSFER, PLEDGE OR
               OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY
               PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF,
               CEDE & CO., HAS AN INTEREST HEREIN.

               TRANSFERS OF THIS GLOBAL NOTE SHALL BE LIMITED TO
               TRANSFERS IN WHOLE, BUT NOT IN PART, TO NOMINEES OF
               CEDE & CO. OR TO A SUCCESSOR THEREOF OR SUCH
               SUCCESSOR'S NOMINEE AND TRANSFERS OF PORTIONS OF THIS
               GLOBAL NOTE SHALL BE LIMITED TO TRANSFERS MADE IN
               ACCORDANCE WITH THE RESTRICTIONS SET FORTH IN
               SECTION 2.08 OF THE INDENTURE.


     <PAGE>

                                  ICG SERVICES INC.

                          10% Senior Discount Note Due 2008

                                                            CUSIP 44924SAA7

          No. 2                                                $200,000,000

                    The following information is supplied for purposes of
          Sections 1273 and 1275 of the Internal Revenue Code:

          Issue Date:  February 12, 1998     Original issue discount under
                                             Section 1273 of the Internal
          Yield to maturity for period       Revenue Code (for each $1,000
          from Issue Date to February        principal amount at maturity):
          15, 2008:  10.00%, compounded      $886.59
          semiannually on February 15 and
          August 15 commencing February
          12, 1998 (computed without         Issue Price (for each $1,000
          giving effect to the additional    principal amount at maturity):
          payments of interest in the        $613.41
          event the issuer fails to
          commence the exchange offer
          and fails to cause the shelf
          registration statement to be
          declared effective, each as
          referred to on the reverse
          hereof)


                    ICG SERVICES, INC., a Delaware corporation (the
          "Company", which term includes any successor under the Indenture
          hereinafter referred to), for value received, promises to pay to
          CEDE & CO., or its registered assigns, the principal sum of TWO
          HUNDRED Million Dollars ($200,000,000) on February 15, 2008.

                    Interest Payment Dates:  February 15 and August 15,
          commencing August 15, 2003.

                    Regular Record Dates:  February 1 and August 1.

                    Reference is hereby made to the further provisions of
          this Note set forth on the reverse hereof, which further
          provisions shall for all purposes have the same effect as if set
          forth at this place.


     <PAGE>

                    IN WITNESS WHEREOF, the Company has caused this Note to
          be signed manually or by facsimile by its duly authorized
          officers.


          Date:  February 12, 1998           ICG SERVICES, INC.


                                        By:
                                           --------------------------------
                                           Name:
                                           Title:


                                        By:
                                           --------------------------------
                                           Name:
                                           Title:


                  (Form of Trustee's Certificate of Authentication)

          This is one of the 10% Senior Discount Notes due 2008 described
          in the within-mentioned Indenture.


                                        NORWEST BANK COLORADO,
                                        NATIONAL ASSOCIATION, as Trustee


                                        By:
                                           --------------------------------
                                                 Authorized Signatory


     <PAGE>

                                [REVERSE SIDE OF NOTE]

                                  ICG SERVICES, INC.

                          10% Senior Discount Note due 2008



          1.   Principal and Interest.
               ----------------------

                    The Company will pay the principal of this 10% Senior
          Discount Note due 2008 (the "Note") on February 15, 2008.

                    The Company promises to pay interest on the principal
          amount of this Note on each Interest Payment Date, as set forth
          below, at the rate per annum shown above.

                    Interest will be payable semiannually (to the holders
          of record of the Notes at the close of business on the February 1
          or August 1 immediately preceding the Interest Payment Date) on
          each Interest Payment Date, commencing August 15, 2003; provided
          that no interest shall accrue on the principal amount of this
          Note prior to February 15, 2003 and no interest shall be paid on
          this Note prior to August 15, 2003, except as provided in the
          next paragraph.

                    If an exchange offer registered under the Securities
          Act is not consummated, and a shelf registration statement under
          the Securities Act with respect to resales of the Notes is not
          declared effective by the Commission, on or before August 12,
          1998 in accordance with the terms of the Registration Rights
          Agreement dated February 12, 1998 between the Company and Morgan
          Stanley & Co. Incorporated, interest (in addition to the accrual
          of original discount during the period ending February 15, 2003
          and in addition to the interest otherwise due on the Notes after
          such date) will accrue from August 12, 1998, at an annual rate of
          .5% of the Accreted Value on the preceding Semi-Annual Accrual
          Date, payable in cash semiannually, in arrears, on February 15
          and August 15 of each year, commencing February 15, 1999, until
          the exchange offer is consummated or the shelf registration
          statement is declared effective.  The Holder of this Note is
          entitled to the benefits of such Registration Rights Agreement.

                    From and after February 15, 2003, interest on the Notes
          will accrue from the most recent date to which interest has been
          paid or, if no interest has been paid, from February 15, 2003;
          provided that, if there is no existing default in the payment of
          interest and this Note is authenticated between a Regular Record
          Date referred to on the face hereof and the next succeeding
          Interest Payment Date, interest shall accrue from such Interest
          Payment Date.  Interest will be computed on the basis of a
          360-day year of twelve 30-day months.

                    The Company shall pay interest on overdue principal and
          premium, if any, and interest on overdue installments of
          interest, to the extent lawful, at a rate per annum that is 2% in
          excess of the rate otherwise payable.

          2.   Method of Payment.
               -----------------

                    The Company will pay principal as provided above and
          interest (except defaulted interest) on the principal amount of
          the Notes as provided above on each February 15 and August 15 to
          the Persons who are Holders (as reflected in the Note Register at
          the close of business on such February 1 and August 1 immediately
          preceding the Interest Payment Date), in each case, even if the
          Note is cancelled on registration of transfer or registration of
          exchange after such record date; provided that, with respect to
          the payment of principal, the Company will not make payment to
          the Holder unless this Note is surrendered to a Paying Agent.

                    The Company will pay principal, premium, if any, and as
          provided above, interest in money of the United States that at
          the time of payment is legal tender for payment of public and
          private debts.  However, the Company may pay principal, premium,
          if any, and interest by its check payable in such money.  It may
          mail an interest check to a Holder's registered address (as
          reflected in the Note Register).  If a payment date is a date
          other than a Business Day at a place of payment, payment may be
          made at that place on the next succeeding day that is a Business
          Day and no interest shall accrue for the intervening period.

          3.   Paying Agent and Registrar.
               --------------------------

                    Initially, the Trustee will act as authenticating
          agent, Paying Agent and Registrar.  The Company may change any
          authenticating agent, Paying Agent or Registrar without notice. 
          The Company, any Subsidiary or any Affiliate of any of them may
          act as Paying Agent, Registrar or co-Registrar.

          4.   Indenture; Issuance of Additional Notes.
               ---------------------------------------

                    The Company issued the Notes under an Indenture dated
          as of February 12, 1998 (the "Indenture"), between the Company
          and Norwest Bank Colorado, N.A., as trustee (the "Trustee"). 
          Capitalized terms herein are used as defined in the Indenture
          unless otherwise indicated.  The terms of the Notes include those
          stated in the Indenture and those made part of the Indenture by
          reference to the Trust Indenture Act.  The Notes are subject to
          all such terms, and Holders are referred to the Indenture and the
          Trust Indenture Act for a statement of all such terms.  To the
          extent permitted by applicable law, in the event of any
          inconsistency between the terms of this Note and the terms of the
          Indenture, the terms of the Indenture shall control.

                    The Notes are general unsecured obligations of the
          Company.  The Company may, subject to Article Four of the
          Indenture, issue additional Notes under the Indenture.

          5.   Redemption.
               ----------

                    The Notes will be redeemable, at the Company's option,
          in whole or in part, at any time or from time to time, on or
          after February 15, 2003 and prior to maturity, upon not less than
          30 nor more than 60 days' prior notice mailed by first class mail
          to each Holder's last address as it appears in the Note Register,
          at the following Redemption Prices (expressed in percentages of
          their principal amount at maturity), plus accrued and unpaid
          interest, if any, to the Redemption Date (subject to the right of
          Holders of record on the relevant Regular Record Date that is on
          or prior to the Redemption Date to receive interest due on an
          Interest Payment Date), if redeemed during the 12-month period
          commencing February 15, of the years set forth below:

                         YEAR                 REDEMPTION PRICE
                         ----                 ----------------
                         2003 . . . . . .          105.0000%
                         2004 . . . . . .          103.3333
                         2005 . . . . . .          101.6667
                         2006 and
                         thereafter . . .          100.0000 

                    In addition, at any time or from time to time, on or
          prior to February 15, 2001, the Company may, at its option,
          redeem Notes having an aggregate principal amount at maturity of
          up to 35% of the aggregate principal amount at maturity of the
          Notes with the proceeds of one or more public or private Equity
          Offerings, at a Redemption Price equal to   110.0% of the
          Accreted Value thereof on the Redemption Date; provided that at
          least 65% of the aggregate principal amount of Notes initially
          issued remains outstanding after each such redemption.

          6.   Notice of Redemption.
               --------------------

                    Notice of any optional redemption will be mailed at
          least 30 days but not more than 60 days before the Redemption
          Date to each Holder of Notes to be redeemed at his last address
          as it appears in the Note Register.  Notes in original
          denominations larger than $1,000 of principal amount at maturity
          may be redeemed in part.  On and after the Redemption Date,
          interest ceases to accrue on Notes or portions of Notes called
          for redemption, unless the Company defaults in the payment of the
          Redemption Price.

          7.   Repurchase upon Change in Control.
               ---------------------------------

                    Upon the occurrence of any Change of Control, each
          Holder shall have the right to require the repurchase of its
          Notes by the Company in cash pursuant to the offer described in
          the Indenture at a purchase price equal to 101% of the Accreted
          Value thereof plus accrued and unpaid interest, if any, to the
          date of purchase (the "Change of Control Payment").

                    A notice of such Change of Control will be mailed
          within 30 days after any Change of Control occurs to each Holder
          at his last address as it appears in the Note Register.  Notes in
          original denominations larger than $1,000 of principal amount at
          maturity may be sold to the Company in part.  On and after the
          date of the Change of Control Payment, interest ceases to accrue
          on Notes or portions of Notes surrendered for purchase by the
          Company, unless the Company defaults in the payment of the Change
          of Control Payment.

          8.   Denominations; Transfer; Exchange.
               ---------------------------------

                    The Notes are in registered form without coupons in
          denominations of $1,000 of principal amount at maturity and
          multiples of $1,000 in excess thereof.  A Holder may register the
          transfer or exchange of Notes in accordance with the Indenture. 
          The Registrar may require a Holder, among other things, to
          furnish appropriate endorsements and transfer documents and to
          pay any taxes and fees required by law or permitted by the
          Indenture.  The Registrar need not register the transfer or
          exchange of any Notes selected for redemption.  Also, it need not
          register the transfer or exchange of any Notes for a period of 15
          days before a selection of Notes to be redeemed is made.

          9.   Persons Deemed Owners.
               ---------------------

                    A Holder shall be treated as the owner of a Note for
          all purposes.

          10.  Unclaimed Money.
               ---------------

                    If money for the payment of principal, premium, if any,
          or interest remains unclaimed for two years, the Trustee and the
          Paying Agent will pay the money back to the Company at its
          request.  After that, Holders entitled to the money must look to
          the Company for payment, unless an abandoned property law
          designates another Person, and all liability of the Trustee and
          such Paying Agent with respect to such money shall cease.

          11.  Discharge Prior to Redemption or Maturity.
               -----------------------------------------

                    If the Company deposits with the Trustee money and/or
          U.S. Government Obligations sufficient to pay the then
          outstanding principal of, premium, if any, and accrued interest
          on the Notes (a) to redemption or maturity, the Company will be
          discharged from the Indenture and the Notes, except in certain
          circumstances for certain sections thereof, and (b) to Stated
          Maturity, the Company will be discharged from certain covenants
          set forth in the Indenture.

          12.  Amendment; Supplement; Waiver.
               -----------------------------

                    Subject to certain exceptions, the Indenture or the
          Notes may be amended or supplemented with the consent of the
          Holders of at least a majority in principal amount at maturity of
          the Notes then outstanding, and any existing default or
          compliance with any provision may be waived with the consent of
          the Holders of at least a majority in principal amount at
          maturity of the Notes then outstanding.  Without notice to or the
          consent of any Holder, the parties thereto may amend or
          supplement the Indenture or the Notes to, among other things,
          cure any ambiguity, defect or inconsistency and make any change
          that does not materially and adversely affect the rights of any
          Holder.

          13.  Restrictive Covenants.
               ---------------------

                    The Indenture imposes certain limitations on the
          ability of the Company and its Restricted Subsidiaries, among
          other things, to Incur Indebtedness, make Restricted Payments,
          use the proceeds from Asset Sales, engage in transactions with
          Affiliates or, with respect to the Company, merge, consolidate or
          transfer substantially all of its assets.  Within 90 days after
          the end of the last fiscal quarter of each year, the Company must
          report to the Trustee on compliance with the terms of the
          Indenture.

          14.  Successor Persons.
               -----------------

                    When a successor Person or other entity assumes all the
          obligations of its predecessor under the Notes and the Indenture,
          the predecessor Person will be released from those obligations.

          15.  Defaults and Remedies.
               ---------------------

                    The following events constitute "Events of Default"
          under the Indenture:  (a) default in the payment of principal of
          (or premium, if any, on) any Note when the same becomes due and
          payable at maturity, upon acceleration, redemption or otherwise;
          (b) default in the payment of interest on any Note when the same
          becomes due and payable, and such default continues for a period
          of 30 days; (c) the Company defaults in the performance of or
          breaches any other covenant or agreement of the Company in the
          Indenture or under the Notes (other than a default specified in
          clause (a) or (b) above) and such default or breach continues for
          a period of 30 consecutive days after written notice by the
          Trustee or the Holders of 25% or more in aggregate principal
          amount of the Notes; (d) the Company fails to make or consummate
          an Offer to Purchase in accordance with Section 4.11 of the
          Indenture; (e) the Company fails to make or consummate an Offer
          to Purchase in accordance with Section 4.12 of the Indenture; (f)
          there occurs with respect to any issue or issues of Indebtedness
          of the Company or any Significant Subsidiary having an
          outstanding principal amount of $10 million or more in the
          aggregate for all such issues of all such Persons, whether such
          Indebtedness now exists or shall hereafter be created, (I) an
          event of default that has caused the holder thereof to declare
          such Indebtedness to be due and payable prior to its Stated
          Maturity and such Indebtedness has not been discharged in full or
          such acceleration has not been rescinded or annulled within 30
          days of such acceleration and/or (II) the failure to make a
          principal payment at the final (but not any interim) fixed
          maturity and such defaulted payment shall not have been made,
          waived or extended within 30 days of such payment default; (g)
          any final judgment or order (not covered by insurance) for the
          payment of money in excess of $10 million in the aggregate
          (treating any deductibles, self-insurance or retention as not so
          covered) shall be rendered against the Company or any Significant
          Subsidiary and shall not be paid or discharged, and there shall
          be any period of 30 consecutive days following entry of the final
          judgment or order that causes the aggregate amount for all such
          final judgments or orders outstanding and not paid or discharged
          against the Company or any of its Significant Subsidiaries to
          exceed $10 million during which a stay of enforcement of such
          final judgment or order, by reason of a pending appeal or
          otherwise, shall not be in effect; (h) a court having
          jurisdiction in the premises enters a decree or order for (A)
          relief in respect of the Company or any Significant Subsidiary in
          an involuntary case under any applicable bankruptcy, insolvency
          or other similar law now or hereafter in effect, (B) appointment
          of a receiver, liquidator, assignee, custodian, trustee,
          sequestrator or similar official of the Company or any
          Significant Subsidiary or for all or substantially all of the
          property and assets of the Company or any Significant Subsidiary
          or (C) the winding up or liquidation of the affairs of the
          Company or any Significant Subsidiary and, in each case, such
          decree or order shall remain unstayed and in effect for a period
          of 30 consecutive days; or (i) the Company or any Significant
          Subsidiary (A) commences a voluntary case under any applicable
          bankruptcy, insolvency or other similar law now or hereafter in
          effect, or consents to the entry of an order for relief in an
          involuntary case under any such law, (B) consents to the
          appointment of or taking possession by a receiver, liquidator,
          assignee, custodian, trustee, sequestrator or similar official of
          the Company or any Significant Subsidiary or for all or
          substantially all of the property and assets of the Company or
          any Significant Subsidiary or (C) effects any general assignment
          for the benefit of creditors.

                    If an Event of Default (other than an Event of Default
          specified in clause (h) or (i) above that occurs with respect to
          the Company) occurs and is continuing under the Indenture, the
          Trustee or the Holders of at least 25% in aggregate principal
          amount at maturity of the Notes, then outstanding, by written
          notice to the Company (and to the Trustee if such notice is given
          by the Holders), may, and the Trustee at the request of such
          Holders shall, declare the Accreted Value of, premium, if any,
          and accrued interest, if any, on the Notes to be immediately due
          and payable.

                    If an Event of Default occurs and is continuing, the
          Trustee or the Holders of at least 25% in aggregate principal
          amount at maturity of the Notes then outstanding may declare all
          the Notes to be due and payable.  If a bankruptcy or insolvency
          default with respect to the Company or any Restricted Subsidiary
          occurs and is continuing, the Notes automatically become due and
          payable.  Holders may not enforce the Indenture or the Notes
          except as provided in the Indenture.  The Trustee may require
          indemnity satisfactory to it before it enforces the Indenture or
          the Notes.  Subject to certain limitations, Holders of at least a
          majority in principal amount at maturity of the Notes then
          outstanding may direct the Trustee in its exercise of any trust
          or power.

          16.  Trustee Dealings with Company.
               -----------------------------

                    The Trustee under the Indenture, in its individual or
          any other capacity, may make loans to, accept deposits from and
          perform services for the Company or its Affiliates and may
          otherwise deal with the Company or its Affiliates as if it were
          not the Trustee.

          17.  No Recourse Against Others.
               --------------------------

                    No incorporator or any past, present or future partner,
          stockholder, other equity holder, officer, director, employee or
          controlling person as such, of the Company or of any successor
          Person shall have any liability for any obligations of the
          Company under the Notes or the Indenture or for any claim based
          on, in respect of or by reason of, such obligations or their
          creation.  Each Holder by accepting a Note waives and releases
          all such liability.  The waiver and release are part of the
          consideration for the issuance of the Notes.

          18.  Authentication.
               --------------

                    This Note shall not be valid until the Trustee or
          authenticating agent signs the certificate of authentication on
          the other side of this Note.

          19.  Abbreviations.
               -------------

                    Customary abbreviations may be used in the name of a
          Holder or an assignee, such as:  TEN COM (= tenants in common),
          TEN ENT (= tenants by the entireties), JT TEN (= joint tenants
          with right of survivorship and not as tenants in common), CUST
          (= Custodian) and U/G/M/A (= Uniform Gifts to Minors Act).

               THIS NOTE SHALL BE GOVERNED BY THE LAWS OF THE STATE OF NEW
          YORK.

                    The Company will furnish to any Holder upon written
          request and without charge a copy of the Indenture.  Requests may
          be made to ICG Services, Inc., 9605 East Maroon Circle, P.O. Box
          6742, Englewood, Colorado, 80155-6742, Attention:  Chief
          Financial Officer.


     <PAGE>
                                   TRANSFER NOTICE

                    FOR VALUE RECEIVED the undersigned registered holder
          hereby sell(s), assign(s) and transfer(s) unto

          Insert Taxpayer Identification No.
          ----------------------------------

          -----------------------------------------------------------------
          Please print or typewrite name and address including zip code of

          -----------------------------------------------------------------
          assignee the within Note and all rights thereunder, hereby

          irrevocably constituting and appointing
                                                  -------------------------
          attorney to transfer said Note on the books of the Company with
          full power of substitution in the premises.

               In connection with any transfer of this Note occurring prior
          to the date which is the earlier of (i) the date of an effective
          Registration or (ii) the end of the period referred to in Rule
          144(k) under the Securities Act, the undersigned confirms that
          without utilizing any general solicitation or general advertising
          that:

                                     [Check One]
                                      ---------

          [  ] (a)  this Note is being transferred in compliance with the
                    exemption from registration under the Securities Act of
                    1933, as amended, provided by Rule 144A thereunder.

                                          or
                                          --

          [  ] (b)  this Note is being transferred other than in accordance
                    with (a) above and documents are being furnished which
                    comply with the conditions of transfer set forth in
                    this Note and the Indenture.

          If none of the foregoing boxes is checked, the Trustee or other
          Registrar shall not be obligated to register this Note in the
          name of any Person other than the Holder hereof unless and until
          the conditions to any such transfer of registration set forth
          herein and in Section 2.08 of the Indenture shall have been
          satisfied.

          Date:
               ----------          ----------------------------------------
                                   NOTICE:  The signature to this
                                   assignment must correspond with the name
                                   as written upon the face of the within-
                                   mentioned instrument in every
                                   particular, without alteration or any
                                   change whatsoever.



          TO BE COMPLETED BY PURCHASER IF (a) ABOVE IS CHECKED.

               The undersigned represents and warrants that it is
          purchasing this Note for its own account or an account with
          respect to which it exercises sole investment discretion and that
          it and any such account is a "qualified institutional buyer"
          within the meaning of Rule 144A under the Securities Act of 1933,
          as amended, and is aware that the sale to it is being made in
          reliance on Rule 144A and acknowledges that it has received such
          information regarding the Company as the undersigned has
          requested pursuant to Rule 144A or has determined not to request
          such information and that it is aware that the transferor is
          relying upon the undersigned's foregoing representations in order
          to claim the exemption from registration provided by Rule 144A.

          Dated:
                ------------------------    -------------------------------
                                            NOTICE:  To be executed by an
                                                     executive officer
           

                          OPTION OF HOLDER TO ELECT PURCHASE


                    If you wish to have this Note purchased by the Company
          pursuant to Section 4.11 or Section 4.12 of the Indenture, check
          the Box:  [ ]

                    If you wish to have a portion of this Note purchased by
          the Company pursuant to Section 4.11 or Section 4.12 of the
          Indenture, state the amount (in principal amount at maturity):
          $
           --------------.

          Date:                   
               -------------------

          Your Signature:  
                           ------------------------------------------------
                                 (Sign exactly as your name appears on the
                                  other side of this Note)

          Signature Guarantee:  
                                ----------------------------











                                 ICG SERVICES, INC.,
                                        as Issuer


                                         and


                     NORWEST BANK COLORADO, NATIONAL ASSOCIATION,
                                        as Trustee



                                 -------------------

                                      Indenture

                            Dated as of February 12, 1998

                                 -------------------


                          10% Senior Discount Notes due 2008


          =================================================================


          <PAGE>


                                CROSS-REFERENCE TABLE
                                ---------------------



          TIA Sections                             Indenture Sections
          ------------                             ------------------

          S.310(a)(1) . . . . . . . . . . . . . .         7.10
               (a)(2) . . . . . . . . . . . . . .         7.10
               (b)  . . . . . . . . . . . . . . .         7.08
          S.313(c)  . . . . . . . . . . . . . . .         7.06; 10.02
          S.314(a)  . . . . . . . . . . . . . . .         4.18; 10.02
               (a)(4) . . . . . . . . . . . . . .         4.17; 10.02
               (c)(1) . . . . . . . . . . . . . .         10.03
               (c)(2) . . . . . . . . . . . . . .         10.03
               (e)  . . . . . . . . . . . . . . .         10.04
          S.315(b)  . . . . . . . . . . . . . . .         7.05; 10.02
          S.316(a)(1)(A)  . . . . . . . . . . . .         6.05
               (a)(1)(B)  . . . . . . . . . . . .         6.04
               (b)  . . . . . . . . . . . . . . .         6.07
          S.317(a)(1) . . . . . . . . . . . . . .         6.08
               (a)(2) . . . . . . . . . . . . . .         6.09
          S.318(a)  . . . . . . . . . . . . . . .         10.01
               (c)  . . . . . . . . . . . . . . .         10.01



          Note:   The Cross-Reference Table shall not for any purpose be
                  deemed to be a part of the Indenture.


          <PAGE>


                                  TABLE OF CONTENTS
                                                                       Page

          RECITALS OF THE COMPANY . . . . . . . . . . . . . . . . . . .   1

                                     ARTICLE ONE
                      DEFINITIONS AND INCORPORATION BY REFERENCE

          SECTION 1.01.  Definitions  . . . . . . . . . . . . . . . . .   1
          SECTION 1.02.  Incorporation by Reference of
                            Trust Indenture Act   . . . . . . . . . . .  25
          SECTION 1.03.  Rules of Construction  . . . . . . . . . . . .  25

                                     ARTICLE TWO
                                      THE NOTES

          SECTION 2.01.  Form and Dating  . . . . . . . . . . . . . . .  26
          SECTION 2.02.  Restrictive Legends  . . . . . . . . . . . . .  27
          SECTION 2.03.  Execution, Authentication and Denominations  .  29
          SECTION 2.04.  Registrar and Paying Agent . . . . . . . . . .  30
          SECTION 2.05.  Paying Agent to Hold Money in Trust  . . . . .  31
          SECTION 2.06.  Transfer and Exchange  . . . . . . . . . . . .  31
          SECTION 2.07.  Book-Entry Provisions for Global Notes . . . .  32
          SECTION 2.08.  Special Transfer Provisions  . . . . . . . . .  34
          SECTION 2.09.  Replacement Notes  . . . . . . . . . . . . . .  37
          SECTION 2.10.  Outstanding Notes  . . . . . . . . . . . . . .  38
          SECTION 2.11.  Temporary Notes  . . . . . . . . . . . . . . .  38
          SECTION 2.12.  Cancellation . . . . . . . . . . . . . . . . .  39
          SECTION 2.13.  CUSIP Numbers  . . . . . . . . . . . . . . . .  39
          SECTION 2.14.  Defaulted Interest . . . . . . . . . . . . . .  39
          SECTION 2.15.  Issuance of Additional Notes . . . . . . . . .  39

                                    ARTICLE THREE
                                      REDEMPTION

          SECTION 3.01.  Right of Redemption  . . . . . . . . . . . . .  40
          SECTION 3.02.  Notices to Trustee . . . . . . . . . . . . . .  40
          SECTION 3.03.  Selection of Notes to Be Redeemed  . . . . . .  40
          SECTION 3.04.  Notice of Redemption . . . . . . . . . . . . .  41
          SECTION 3.05.  Effect of Notice of Redemption . . . . . . . .  42
          SECTION 3.06.  Deposit of Redemption Price  . . . . . . . . .  42
          SECTION 3.07.  Payment of Notes Called for Redemption . . . .  42
          SECTION 3.08.  Notes Redeemed in Part . . . . . . . . . . . .  43

          --------------------
          Note: The Table of Contents shall not for any purposes be deemed
                to be a part of the Indenture.

          <PAGE>

                                     ARTICLE FOUR
                                      COVENANTS

          SECTION 4.01.  Payment of Notes . . . . . . . . . . . . . . .  43
          SECTION 4.02.  Maintenance of Office or Agency  . . . . . . .  43
          SECTION 4.03.  Limitation on Indebtedness . . . . . . . . . .  44
          SECTION 4.04.  Limitation on Restricted Payments  . . . . . .  47
          SECTION 4.05.  Limitation on Dividend and Other
                            Payment Restrictions Affecting
                            Restricted Subsidiaries   . . . . . . . . .  50
          SECTION 4.06.  Limitation on the Issuance and Sale of
                            Capital Stock of Restricted Subsidiaries  .  52
          SECTION 4.07.  Limitation on Issuances of Guarantees by
                            Restricted Subsidiaries   . . . . . . . . .  52
          SECTION 4.08.  Limitation on Transactions with Shareholders
                            and Affiliates  . . . . . . . . . . . . . .  53
          SECTION 4.09.  Limitation on Liens  . . . . . . . . . . . . .  54
          SECTION 4.10.  Limitation on Sale-Leaseback Transactions  . .  54
          SECTION 4.11.  Limitation on Asset Sales  . . . . . . . . . .  55
          SECTION 4.12.  Repurchase of Notes upon a Change of Control .  57
          SECTION 4.13.  Existence  . . . . . . . . . . . . . . . . . .  57
          SECTION 4.14.  Payment of Taxes and Other Claims  . . . . . .  57
          SECTION 4.15.  Maintenance of Properties and Insurance  . . .  57
          SECTION 4.16.  Notice of Defaults . . . . . . . . . . . . . .  58
          SECTION 4.17.  Compliance Certificates  . . . . . . . . . . .  58
          SECTION 4.18.  Commission Reports and Reports to Holders  . .  59
          SECTION 4.19.  Waiver of Stay, Extension or Usury Laws  . . .  59

                                     ARTICLE FIVE
                                SUCCESSOR CORPORATION

          SECTION 5.01.  When Company May Merge, Etc. . . . . . . . . .  60
          SECTION 5.02.  Successor Substituted  . . . . . . . . . . . .  61

                                     ARTICLE SIX
                                 DEFAULT AND REMEDIES

          SECTION 6.01.  Events of Default  . . . . . . . . . . . . . .  61
          SECTION 6.02.  Acceleration . . . . . . . . . . . . . . . . .  62
          SECTION 6.03.  Other Remedies . . . . . . . . . . . . . . . .  63
          SECTION 6.04.  Waiver of Past Defaults  . . . . . . . . . . .  64
          SECTION 6.05.  Control by Majority  . . . . . . . . . . . . .  64
          SECTION 6.06.  Limitation on Suits  . . . . . . . . . . . . .  64
          SECTION 6.07.  Rights of Holders to Receive Payment . . . . .  65
          SECTION 6.08.  Collection Suit by Trustee . . . . . . . . . .  65
          SECTION 6.09.  Trustee May File Proofs of Claim . . . . . . .  65
          SECTION 6.10.  Priorities . . . . . . . . . . . . . . . . . .  66
          SECTION 6.11.  Undertaking for Costs  . . . . . . . . . . . .  66
          SECTION 6.12.  Restoration of Rights and Remedies . . . . . .  66
          SECTION 6.13.  Rights and Remedies Cumulative . . . . . . . .  67
          SECTION 6.14.  Delay or Omission Not Waiver . . . . . . . . .  67


          <PAGE>

                                    ARTICLE SEVEN
                                       TRUSTEE

          SECTION 7.01.  General  . . . . . . . . . . . . . . . . . . .  67
          SECTION 7.02.  Certain Rights of Trustee  . . . . . . . . . .  67
          SECTION 7.03.  Individual Rights of Trustee . . . . . . . . .  68
          SECTION 7.04.  Trustee's Disclaimer . . . . . . . . . . . . .  69
          SECTION 7.05.  Notice of Default  . . . . . . . . . . . . . .  69
          SECTION 7.06.  Reports by Trustee to Holders  . . . . . . . .  69
          SECTION 7.07.  Compensation and Indemnity . . . . . . . . . .  69
          SECTION 7.08.  Replacement of Trustee . . . . . . . . . . . .  70
          SECTION 7.09.  Successor Trustee by Merger, Etc.  . . . . . .  71
          SECTION 7.10.  Eligibility  . . . . . . . . . . . . . . . . .  71
          SECTION 7.11.  Money Held in Trust  . . . . . . . . . . . . .  71
          SECTION 7.12.  Withholding Taxes  . . . . . . . . . . . . . .  71

                                    ARTICLE EIGHT
                                DISCHARGE OF INDENTURE

          SECTION 8.01. Termination of the Company's Obligations  . . .  72
          SECTION 8.02.  Defeasance and Discharge of Indenture  . . . .  73
          SECTION 8.03.  Defeasance of Certain Obligations  . . . . . .  74
          SECTION 8.04.  Application of Trust Money . . . . . . . . . .  75
          SECTION 8.05.  Repayment to Company . . . . . . . . . . . . .  75
          SECTION 8.06.  Reinstatement  . . . . . . . . . . . . . . . .  76
          SECTION 8.07.  Defeasance and Certain Other
                            Events of Default   . . . . . . . . . . . .  76

                                     ARTICLE NINE
                         AMENDMENTS, SUPPLEMENTS AND WAIVERS

          SECTION 9.01.  Without Consent of Holders . . . . . . . . . .  76
          SECTION 9.02.  With Consent of Holders  . . . . . . . . . . .  77
          SECTION 9.03.  Revocation and Effect of Consent . . . . . . .  78
          SECTION 9.04.  Notation on or Exchange of Notes . . . . . . .  78
          SECTION 9.05.  Trustee to Sign Amendments, Etc. . . . . . . .  79
          SECTION 9.06.  Conformity with Trust Indenture Act  . . . . .  79



          <PAGE>

                                     ARTICLE TEN
                                    MISCELLANEOUS

          SECTION 10.01.  Trust Indenture Act of 1939 . . . . . . . . .  79
          SECTION 10.02.  Notices . . . . . . . . . . . . . . . . . . .  79
          SECTION 10.03.  Certificate and Opinion As to
                            Conditions Precedent  . . . . . . . . . . .  80
          SECTION 10.04.  Statements Required in Certificate
                            or Opinion  . . . . . . . . . . . . . . . .  81
          SECTION 10.05.  Rules by Trustee, Paying Agent 
                            or Registrar  . . . . . . . . . . . . . . .  81
          SECTION 10.06.  Payment Date Other Than a Business Day  . . .  81
          SECTION 10.07.  Governing Law; Submission to Jurisdiction . .  81
          SECTION 10.08.  No Adverse Interpretation of
                            Other Agreements  . . . . . . . . . . . . .  81
          SECTION 10.09.  No Recourse Against Others  . . . . . . . . .  82
          SECTION 10.10.  Successors  . . . . . . . . . . . . . . . . .  82
          SECTION 10.11.  Duplicate Originals . . . . . . . . . . . . .  82
          SECTION 10.12.  Separability  . . . . . . . . . . . . . . . .  82
          SECTION 10.13.  Table of Contents, Headings, Etc. . . . . . .  82


            EXHIBIT A     Form of Note  . . . . . . . . . . . . . . . . A-1
            EXHIBIT B     Form of Certificate   . . . . . . . . . . . . B-1
            EXHIBIT C     Form of Certificate to Be Delivered
                            in Connection with Transfers Pursuant
                            to Regulation S   . . . . . . . . . . . . . C-1
            EXHIBIT D     Form of Certificate to Be Delivered
                            in Connection with Transfers to
                            Non-QIB Accredited Investors  . . . . . . . D-1


          


          <PAGE>

          
                    INDENTURE, dated as of February 12, 1998, between ICG
          SERVICES INC., a Delaware corporation (the "Company"), and 
                                                      -------
          NORWEST BANK COLORADO, NATIONAL ASSOCIATION (the "Trustee").
                                                            -------


                               RECITALS OF THE COMPANY

                    The Company has duly authorized the execution and
          delivery of this Indenture to provide for the issuance from time
          to time of 10% Senior Discount Notes due 2008 (the "Notes") 
                                                              -----
          issuable as provided in this Indenture.  Pursuant to the terms of
          a Placement Agreement dated February 9, 1998 (the "Placement 
                                                             ---------
          Agreement") among the Company, NETCOM On-Line Communication 
          ---------
          Services, Inc. and Morgan Stanley & Co. Incorporated, the Company
          has agreed to issue and sell $490,000,000 aggregate principal
          amount at maturity of the Notes.  All things necessary to make
          this Indenture a valid agreement of the Company, in accordance
          with its terms, have been done, and the Company has done all
          things necessary to make the Notes, when executed by the Company
          and authenticated and delivered by the Trustee hereunder and duly
          issued by the Company, the valid obligations of the Company as
          hereinafter provided.

                    This Indenture is subject to, and shall be governed by,
          the provisions of the Trust Indenture Act of 1939, as amended,
          that are required to be a part of and to govern indentures
          qualified under the Trust Indenture Act of 1939, as amended.

                    For and in consideration of the premises and the
          purchase of the Notes by the Holders thereof, it is mutually
          covenanted and agreed, for the equal and proportionate benefit of
          all Holders, as follows.


                                     ARTICLE ONE
                      DEFINITIONS AND INCORPORATION BY REFERENCE

                    SECTION 1.01.  Definitions.
                                   -----------

               "Accreted Value" means, for any Specified Date, the amount
          calculated pursuant to (i), (ii), (iii) or (iv) for each $1,000
          principal amount at maturity of Notes:

                    (i)    if the Specified Date occurs on one of the
               following dates (each a "Semi-Annual Accrual Date"), the 
                                        ------------------------
               Accreted Value will equal the amount set forth below for
               such Semi-Annual Accrual Date:

                               SEMI-ANNUAL        ACCRETED
                              ACCRUAL DATE         VALUE
                              ------------          ----

                            August 15, 1998        $ 644.60
                            February 15, 1999      $ 676.83
                            August 15, 1999        $ 710.68
                            February 15, 2000      $ 746.21
                            August 15, 2000        $ 783.52
                            February 15, 2001      $ 822.70
                            August 15, 2001        $ 863.83
                            February 15, 2002      $ 907.02
                            August 15, 2002        $ 952.38
                            February 15, 2003    $ 1,000.00

                    (ii)   if the Specified Date occurs before the first
               Semi-Annual Accrual Date, the Accreted Value will equal the
               sum of (a) the original issue price and (b) an amount equal
               to the product of (1) the Accreted Value for the first Semi-
               Annual Accrual Date less the original issue price multiplied
                                                                 ----------
               by (2) a fraction, the numerator of which is the number of
               days from the issue date of the Notes to the Specified Date,
               using a 360-day year of twelve 30-day months, and the
               denominator of which is the number of days from the Closing
               Date to the first Semi-Annual Accrual Date, using a 360-day
               year of twelve 30-day months;

                    (iii)  if the Specified Date occurs between two Semi-
               Annual Accrual Dates, the Accreted Value will equal the sum
               of (a) the Accreted Value for the Semi-Annual Accrual Date
               immediately preceding such Specified Date and (b) an amount
               equal to the product of (1) the Accreted Value for the
               immediately following Semi-Annual Accrual Date less the
               Accreted Value for the immediately preceding Semi-Annual
               Accrual Date multiplied by (2) a fraction, the numerator of
               which is the number of days from the immediately preceding
               Semi-Annual Accrual Date to the Specified Date, using a 360-
               day year of twelve 30-day months, and the denominator of
               which is 180; or

                    (iv)   if the Specified Date occurs after the last
               Semi-Annual Accrual Date, the Accreted Value will equal
               $1,000.

               "Acquired Indebtedness" means Indebtedness of a Person
          existing at the time such Person becomes a Restricted Subsidiary
          or assumed in connection with an Asset Acquisition by a
          Restricted Subsidiary and not Incurred in connection with, or in
          anticipation of, such Person becoming a Restricted Subsidiary or
          such Asset Acquisition.

               "Adjusted Consolidated Net Income" means, for any period,
          the aggregate net income (or loss) of the Company and its
          Restricted Subsidiaries for such period determined in conformity
          with GAAP; provided that the following items shall be excluded in
                     --------
          computing Adjusted Consolidated Net Income (without duplication): 
          (i) the net income (or loss) of any Person that is not a
          Restricted Subsidiary (or is an Unrestricted Subsidiary), except
          to the extent of the amount of dividends or other distributions
          actually paid to the Company or any of its Restricted
          Subsidiaries by such Person or an Unrestricted Subsidiary during
          such period; (ii) solely for the purposes of calculating the
          amount of Restricted Payments that may be made pursuant to clause
          (C) of the first paragraph of Section 4.04 hereof (and in such
          case, except to the extent includable pursuant to clause (i)
          above), the net income (or loss) of any Person accrued prior to
          the date it becomes a Restricted Subsidiary or is merged into or
          consolidated with the Company or any of its Restricted
          Subsidiaries or all or substantially all of the property and
          assets of such Person are acquired by the Company or any of its
          Restricted Subsidiaries; (iii) the net income of any Restricted
          Subsidiary to the extent that the declaration or payment of
          dividends or similar distributions by such Restricted Subsidiary
          of such net income is not at the time permitted by the operation
          of the terms of its charter or any agreement, instrument,
          judgment, decree, order, statute, rule or governmental regulation
          applicable to such Restricted Subsidiary (except to the extent
          such restriction has been legally waived); (iv) any gains or
          losses (on an after-tax basis) attributable to Asset Sales or the
          termination of discontinued operations; (v) except for purposes
          of calculating the amount of Restricted Payments that may be made
          pursuant to clause (C) of the first paragraph of Section 4.04,
          any amount paid or accrued as dividends on Preferred Stock of the
          Company or any Restricted Subsidiary owned by Persons other than
          the Company and any of its Restricted Subsidiaries; (vi) all
          extraordinary gains and extraordinary losses; and (vii) at the
          irrevocable election of the Company for each occurrence, any net
          after-tax income (loss) from discontinued operations; provided 
                                                                --------
          that for purposes of any subsequent Investment in the entity
          conducting such discontinued operations under Section 4.04, such
          entity shall be treated as an Unrestricted Subsidiary until such
          discontinued operations have actually been disposed of.

               "Adjusted Consolidated Net Tangible Assets" means the total
          amount of assets of the Company and its Restricted Subsidiaries
          (less applicable depreciation, amortization and other valuation
          reserves), except to the extent resulting from write-ups of
          capital assets (excluding write-ups in connection with accounting
          for acquisitions in conformity with GAAP), after deducting
          therefrom (i) all current liabilities of the Company and its
          Restricted Subsidiaries (excluding intercompany items) and (ii)
          all goodwill, trade names, trademarks, patents, unamortized debt
          discount and expense and other like intangibles, all as set forth
          on the most recent quarterly or annual consolidated balance sheet
          of the Company and its Restricted Subsidiaries, prepared in
          conformity with GAAP and filed with the Commission or provided to
          the Trustee pursuant to Section 4.18 hereof.

               "Affiliate" means, as applied to any Person, any other
          Person directly or indirectly controlling, controlled by, or
          under direct or indirect common control with, such Person.  For
          purposes of this definition, "control" (including, with
          correlative meanings, the terms "controlling", "controlled by"
          and "under common control with"), as applied to any Person, means
          the possession, directly or indirectly, of the power to direct or
          cause the direction of the management and policies of such
          Person, whether through the ownership of voting securities, by
          contract or otherwise.

               "Agent" means any Registrar, Paying Agent, authenticating
          agent or co-Registrar.

               "Agent Members" has the meaning provided in Section 2.07(a).

               "Asset Acquisition" means (i) an investment by the Company
          or any of its Restricted Subsidiaries in any other Person
          pursuant to which such Person shall become a Restricted
          Subsidiary or shall be merged into or consolidated with the
          Company or any of its Restricted Subsidiaries or (ii) an
          acquisition by the Company or any of its Restricted Subsidiaries
          of the property and assets of any Person other than the Company
          or any of its Restricted Subsidiaries that constitute
          substantially all of a division or line of business of such
          Person.

               "Asset Sale" means any sale, transfer or other disposition
          (including by way of merger, consolidation or sale-leaseback
          transaction) in one transaction or a series of related
          transactions by the Company or any of its Restricted Subsidiaries
          to any Person other than the Company or any of its Restricted
          Subsidiaries of (i) all or any of the Capital Stock of any
          Restricted Subsidiary, (ii) all or substantially all of the
          property and assets of an operating unit or business of the
          Company or any of its Restricted Subsidiaries or (iii) any other
          property and assets (other than the Capital Stock or other
          Investment in an Unrestricted Subsidiary) of the Company or any
          of its Restricted Subsidiaries outside the ordinary course of
          business of the Company or such Restricted Subsidiary and, in
          each case, that is not governed by the provisions of Article
          Five; provided that "Asset Sale" shall not include (a) sales or 
                --------
          other dispositions of inventory, receivables and other current
          assets, (b) sales or other dispositions of assets for
          consideration at least equal to the fair market value of the
          assets sold or disposed of, to the extent that the consideration
          received would constitute property or assets of the kind
          described in clause (B) of the Section 4.11 hereof, (c) a
          disposition of cash or Temporary Cash Investments, (d) any
          Restricted Payment that is permitted to be made, and is made,
          under Section 4.04, (e) sales or other dispositions of assets
          with a fair market value (as certified in an Officers'
          Certificate) not in excess of $2.0 million (provided that any
          series of related sales or dispositions in excess of $2.0 million
          shall be considered "Asset Sales"), (f) the lease, license,
          transfer of rights-of-use, assignment of a lease, license,
          transfer of rights-of-use or sublease or sublicense of any real
          or personal property in the ordinary course of business, (g)
          foreclosures on assets, (h) substantially simultaneous exchange
          by the Company or any Restricted Subsidiary of property or
          equipment for other property or equipment; provided that the 
                                                     --------
          property or equipment received by the Company or such Restricted
          Subsidiary has, at least substantially equal market value to the
          Company or such Restricted Subsidiary, (i) sales or other
          dispositions by the Company or any Restricted Subsidiary, from
          time to time, of up to 100% of the Southwest Communications
          Business to Central and South West Corporation or its affiliates
          or CSW/ICG ChoiceCom, L.P. and (j) transfer or other disposition
          by the Company or any Restricted Subsidiary of Capital Stock of
          any Restricted Subsidiary or an operating unit or business of the
          Company or any Restricted Subsidiary in exchange for an ownership
          interest in a joint venture whose primary business is related,
          ancillary or complementary to (A) the businesses of the Company
          and its Restricted Subsidiaries at the time of determination or
          (B) the Telecommunications Business; provided that the fair 
                                               --------
          market value of such ownership interest is at least equal to the
          fair market value of such Capital Stock or operating unit or
          business transferred or disposed of (as determined by the Board
          of Directors, where good faith determination shall be conclusive
          and evidenced by a board resolution); and provided further that 
                                                    -------- -------
          the assets or properties so transferred or disposed of pursuant
          to this clause (j) do not exceed 20% of Adjusted Consolidated Net
          Tangible Assets at the time of such transfer or disposition.

               "Average Life" means, at any date of determination with
          respect to any debt security, the quotient obtained by dividing
          (i) the sum of the products of (a) the number of years from such
          date of determination to the dates of each successive scheduled
          principal payment of such debt security and (b) the amount of
          such principal payment by (ii) the sum of all such principal
          payments.

               "Board of Directors" means the Board of Directors of the
          Company as required by the context or any committee of such Board
          of Directors duly authorized to act under this Indenture.

               "Board Resolution" means a copy of a resolution, certified
          by the Secretary or Assistant Secretary of the Company as
          required by the context to have been duly adopted by the Board of
          Directors and to be in full force and effect on the date of such
          certification, and delivered to the Trustee.

               "Business Day" means any day except a Saturday, Sunday or
          other day on which commercial banks in The City of New York, or
          in the city of the Corporate Trust Office of the Trustee, are
          authorized by law to close.

               "Capital Stock" means, with respect to any Person, any and
          all shares, interests, participations or other equivalents
          (however designated, whether voting or non-voting) in equity of
          such Person, whether outstanding on the Closing Date or issued
          thereafter, including, without limitation, all Common Stock,
          Preferred Stock, partnership or membership interests and any
          other right to receive a share of the profits and losses of, or
          distributions of assets of, the issuing Person.

               "Capitalized Lease" means, as applied to any Person, any
          lease of any property (whether real, personal or mixed) of which
          the discounted present value of the rental obligations of such
          Person as lessee, in conformity with GAAP, is required to be
          capitalized on the balance sheet of such Person.

               "Capitalized Lease Obligations" means the amount of the
          liability in respect of a Capitalized Lease that would at such
          time be required to be capitalized and reflected as a liability
          on balance sheet prepared in accordance with GAAP.

               "Change of Control" means such time as (i) a "person" or
          "group" (within the meaning of Sections 13(d) and 14(d)(2) of the
          Exchange Act) becomes the ultimate "beneficial owner" (as defined
          in Rule 13d-3 under the Exchange Act) of (A) more than 40% of the
          total voting power of the Voting Stock of the Company on a fully
          diluted basis and (B) Voting Stock of the Company having a
          greater total voting power than the Voting Stock of the Company
          (on a fully diluted basis) beneficially owned by ICG or (ii)
          individuals who on the Closing Date constitute the Board of
          Directors (together with any new directors whose election by the
          Board of Directors or whose nomination by the Board of Directors
          for election by the Company's stockholders was approved by a vote
          of at least a majority of the members of the Board of Directors
          then in office who either were members of the Board of Directors
          on the Closing Date or whose election or nomination for election
          was previously so approved) cease for any reason to constitute a
          majority of the members of the Board of Directors then in office.

               "Closing Date" means the date on which the Notes are
          originally issued under this Indenture.

               "Commission" means the Securities and Exchange Commission,
          as from time to time constituted, created under the Exchange Act
          or, if at any time after the execution of this instrument such
          Commission is not existing and performing the duties now assigned
          to it under the TIA, then the body performing such duties at such
          time.

               "Common Stock" means, with respect to any Person, any and
          all shares, interests, participations or other equivalents
          (however designated, whether voting or non-voting) of such
          Person's common stock, whether now outstanding or issued after
          the date of this Indenture, including, without limitation, all
          series and classes of such common stock.

               "Company" means the party named as such in the first
          paragraph of this Indenture until a successor replaces it
          pursuant to the applicable provisions of this Indenture and
          thereafter means the successor.

               "Company Order" means a written request or order signed in
          the name of the Company (i) by its Chairman of the Board, the
          Vice Chairman of the Board, its President or a Vice President and
          (ii) by its Chief Financial Officer, Treasurer, an Assistant
          Treasurer, its Secretary or an Assistant Secretary and delivered
          to the Trustee; provided, however, that such written request or 
                          --------  -------
          order may be signed by any two of the officers or directors
          listed in clause (i) above in lieu of being signed by one of such
          officers or directors listed in such clause (i) and one of the
          officers listed in clause (ii) above.

               "Consolidated EBITDA" means, for any period, Adjusted
          Consolidated Net Income for such period plus, to the extent such
          amount was deducted in calculating such Adjusted Consolidated Net
          Income, (i) Consolidated Interest Expense, (ii) income taxes
          (other than income taxes (either positive or negative)
          attributable to extraordinary and non-recurring gains or losses
          or sales of assets), (iii) depreciation expense, (iv)
          amortization expense and (v) all other non-cash items reducing
          Adjusted Consolidated Net Income (other than items that will
          require cash payments and for which an accrual or reserve is, or
          is required by GAAP to be, made), less all non-cash items
          increasing (or, in the case of a loss, decreasing) Adjusted
          Consolidated Net Income, determined, with respect to clauses
          (ii), (iii) and (iv), on a consolidated basis for the Company and
          its Restricted Subsidiaries in conformity with GAAP; provided 
                                                               --------
          that, if any Restricted Subsidiary is not a Wholly Owned
          Restricted Subsidiary, Consolidated EBITDA shall be reduced (to
          the extent not otherwise reduced in accordance with GAAP) by an
          amount equal to (A) the amount of the Adjusted Consolidated Net
          Income attributable to such Restricted Subsidiary multiplied by
          (B) the percentage ownership interest in the income of such
          Restricted Subsidiary not owned on the last day of such period by
          the Company or any of its Restricted Subsidiaries.

               "Consolidated Interest Expense" means, for any period, the
          aggregate amount (without duplication) of interest in respect of
          Indebtedness (including, without limitation, amortization of
          original issue discount on any Indebtedness and the interest
          portion of any deferred payment obligation, calculated in
          accordance with the effective interest method of accounting; all
          commissions, discounts and other fees and charges owed with
          respect to letters of credit and bankers' acceptance financing;
          the net costs associated with Interest Rate Agreements; and
          Indebtedness that is Guaranteed or secured by the Company or any
          of its Restricted Subsidiaries) and the interest component of
          Capitalized Lease Obligations paid, accrued or scheduled to be
          paid or to be accrued by the Company and its Restricted
          Subsidiaries during such period; excluding, however, (i) any 
                                           ---------  -------
          amount of such interest of any Restricted Subsidiary if the net
          income of such Restricted Subsidiary is excluded in the
          calculation of Adjusted Consolidated Net Income pursuant to
          clause (iii) of the definition thereof (but only in the same
          proportion as the net income of such Restricted Subsidiary is
          excluded from the calculation of Adjusted Consolidated Net Income
          pursuant to clause (iii) of the definition thereof) and (ii) any
          premiums, fees and expenses (and any amortization thereof)
          payable in connection with the offering of the Notes, all as
          determined on a consolidated basis (without taking into account
          Unrestricted Subsidiaries) in conformity with GAAP.

               "Consolidated Leverage Ratio" means, on any Transaction
          Date, the ratio of (i) the aggregate amount of Indebtedness of
          the Company and its Restricted Subsidiaries on a consolidated
          basis outstanding on such Transaction Date to (ii) the aggregate
          amount of Consolidated EBITDA for the then most recent four
          fiscal quarters for which financial statements of the Company
          have been filed with the Commission or provided to the Trustee
          pursuant to Section 4.18 hereof (such four fiscal quarter period
          being the "Four Quarter Period"); provided that, in making the 
                     -------------------    --------
          foregoing calculation, pro forma effect shall be given to the
          following events which occur from the beginning of the Four
          Quarter Period through the Transaction Date (the "Reference 
                                                            ---------
          Period"):  (i) the Incurrence of the Indebtedness with respect to
          ------
          which the computation is being made and (if applicable) the
          application of the net proceeds therefrom, including to refinance
          other Indebtedness, as if such Indebtedness was incurred, and the
          application of such proceeds occurred, at the beginning of the
          Four Quarter Period; (ii) the Incurrence, repayment or retirement
          of any other Indebtedness by the Company and its Restricted
          Subsidiaries since the first day of the Four Quarter Period as if
          such Indebtedness was incurred, repaid or retired at the
          beginning of the Four Quarter Period; (iii) in the case of
          Acquired Indebtedness, the related acquisition, as if such
          acquisition occurred at the beginning of the Four Quarter Period;
          (iv) any acquisition or disposition by the Company and its
          Restricted Subsidiaries of any company or any business or any
          assets out of the ordinary course of business, whether by merger,
          stock purchase or sale or asset purchase or sale or any related
          repayment of Indebtedness, in each case since the first day of
          the Four Quarter Period, assuming such acquisition or disposition
          had been consummated on the first day of the Four Quarter Period
          and after giving pro forma effect to net cost savings that the
          Company reasonably believes in good faith could have been
          achieved during the Four Quarter Period as a result of such
          acquisition or disposition (provided that both (A) such cost 
                                      --------
          savings were identified and quantified in an Officers'
          Certificate delivered to the Trustee at the time of the
          consummation of the acquisition or disposition and (B) with
          respect to each acquisition or disposition completed prior to the
          90th day preceding such date of determination, actions were
          commenced or initiated by the Company within 90 days of such
          acquisition or disposition to effect such cost savings identified
          in such Officers' Certificate and with respect to any other
          acquisition or disposition, such Officers' Certificate sets forth
          the specific steps to be taken within the 90 days after such
          acquisition or disposition to accomplish such cost savings); and
          provided further that (x) in making such computation, the 
          -------- -------
          Consolidated Interest Expense attributable to interest on any
          Indebtedness computed on a pro forma basis and (A) bearing a
          floating interest rate shall be computed as if the rate in effect
          on the date of computation had been the applicable rate for the
          entire period and (B) which was not outstanding during the period
          for which the computation is being made but which bears, at the
          option of the Company, a fixed or floating rate of interest shall
          be computed by applying, at the option of the Company, either the
          fixed or floating rate, and (y) in making such computation, the
          Consolidated Interest Expense of the Company attributable to
          interest on any Indebtedness under a revolving credit facility
          computed on a pro forma basis shall be computed based upon the
          pro forma average daily balance of such Indebtedness during the
          applicable period; and (v) the occurrence of any of the events
          described in clauses (i)-(iv) above by any Person that has become
          a Restricted Subsidiary or has been merged with or into the
          Company or any Restricted Subsidiary during such Reference
          Period.

               "Consolidated Net Worth" means, at any date of
          determination, stockholders' equity as set forth on the most
          recently available quarterly or annual consolidated balance sheet
          of the Company and its Restricted Subsidiaries (which shall be as
          of a date not more than 90 days prior to the date of such
          computation, and which shall not take into account Unrestricted
          Subsidiaries), less any amounts attributable to Disqualified
          Stock or any equity security convertible into or exchangeable for
          Indebtedness, the cost of treasury stock and the principal amount
          of any promissory notes receivable from the sale of the Capital
          Stock of the Company or any of its Restricted Subsidiaries, each
          item to be determined in conformity with GAAP (excluding the
          effects of foreign currency exchange adjustments under Financial
          Accounting Standards Board Statement of Financial Accounting
          Standards No. 52).

               "Corporate Trust Office" means the office of the Trustee at
          which the corporate trust business of the Trustee shall, at any
          particular time, be principally administered, which office is, at
          the date of this Indenture, located at 1740 Broadway, Denver,
          Colorado 80274-8693, Attention:  Corporate Trust and Escrow
          Services.

               "Currency Agreement" means any foreign exchange contract,
          currency swap agreement or other similar agreement or
          arrangement.

               "Default" means any event that is, or after notice or
          passage of time or both would be, an Event of Default.

               "Depository" shall mean The Depository Trust Company, its
          nominees, and their respective successors.

               "Disqualified Stock" means any class or series of Capital
          Stock of any Person that by its terms or otherwise is (i)
          required to be redeemed prior to the Stated Maturity of the
          Notes, (ii) redeemable at the option of the holder of such class
          or series of Capital Stock at any time prior to the Stated
          Maturity of the Notes or (iii) convertible into or exchangeable
          for Capital Stock referred to in clause (i) or (ii) above or
          Indebtedness having a scheduled maturity prior to the Stated
          Maturity of the Notes; provided that any Capital Stock that would
                                 --------
          not constitute Disqualified Stock but for provisions thereof
          giving holders thereof the right to require such Person to
          repurchase or redeem such Capital Stock (or the security for
          which such Capital Stock is convertible into or exchangeable for)
          upon the occurrence of an "asset sale" or "change of control"
          occurring prior to the Stated Maturity of the Notes shall not
          constitute Disqualified Stock if the "asset sale" or "change of
          control" provisions applicable to such Capital Stock (or the
          security for which such Capital Stock is convertible into or
          exchangeable for) are no more favorable to the holders of such
          Capital Stock (or the security for which such Capital Stock is
          convertible into or exchangeable for) than the provisions
          contained in Sections 4.11 and 4.12 hereof and such Capital Stock
          (or the security for which such Capital Stock is convertible into
          or exchangeable for) specifically provides that such Person will
          not repurchase or redeem any such stock pursuant to such
          provision prior to the Company's repurchase of such Notes as are
          required to be repurchased pursuant to Sections 4.11 and 4.12
          hereof.

               "Equity Offering" means any public or private sale of
          Capital Stock of the Company (excluding Disqualified Stock),
          other than public offerings with respect to the Company's Common
          Stock registered on Form S-8.

               "Event of Default" has the meaning provided in Section 6.01.

               "Excess Proceeds" has the meaning provided in Section 4.11.

               "Exchange Act" means the Securities Exchange Act of 1934, as
          amended.

               "Exchange Notes" means any notes of the Company containing
          terms identical to the Notes (except that such Exchange Notes (i)
          shall be registered under the Securities Act, (ii) will not
          provide for an increase in the rate of interest (other than with
          respect to overdue amounts) and (iii) will not contain terms with
          respect to transfer restrictions) that are issued and exchanged
          for the Notes pursuant to the Registration Rights Agreement and
          this Indenture.

               "Exchange Offer" means Exchange Offer as defined in the
          Registration Rights Agreement.

               "fair market value" means the price that would be paid in an
          arm's-length transaction between an informed and willing seller
          under no compulsion to sell and an informed and willing buyer
          under no compulsion to buy; fair market value may be determined
          in good faith by the Board of Directors of the Company, whose
          determination shall be conclusive if evidenced by a Board
          Resolution.

               "GAAP" means generally accepted accounting principles in the
          United States of America as in effect as of the Closing Date,
          including, without limitation, those set forth in the opinions
          and pronouncements of the Accounting Principles Board of the
          American Institute of Certified Public Accountants and statements
          and pronouncements of the Financial Accounting Standards Board or
          in such other statements by such other entity as approved by a
          significant segment of the accounting profession.  All ratios and
          computations contained or referred to in the Indenture shall be
          computed in conformity with GAAP applied on a consistent basis,
          except that calculations made for purposes of determining
          compliance with the terms of the covenants and with other
          provisions of the Indenture shall be made without giving effect
          to (i) the amortization of any expenses incurred in connection
          with the offering of the Notes and (ii) except as otherwise
          provided, the amortization of any amounts required or permitted
          by Accounting Principles Board Opinion Nos. 16 and 17.

               "Global Notes" has the meaning provided in Section 2.01.

               "Guarantee" means any obligation, contingent or otherwise,
          of any Person directly or indirectly guaranteeing any
          Indebtedness of any other Person and, without limiting the
          generality of the foregoing, any obligation, direct or indirect,
          contingent or otherwise, of such Person (i) to purchase or pay
          (or advance or supply funds for the purchase or payment of) such
          Indebtedness of such other Person (whether arising by virtue of
          partnership arrangements, or by agreements to keep-well, to
          purchase assets, goods, securities or services, to take-or-pay
          (unless such purchase arrangements or such obligations are on
          arm's length terms and are entered into in the ordinary course of
          business), or to maintain financial statement conditions or
          otherwise) or (ii) entered into for purposes of assuring in any
          other manner the obligee of such Indebtedness of the payment
          thereof or to protect such obligee against loss in respect
          thereof (in whole or in part); provided that the term "Guarantee"
                                         --------
          shall not include endorsements for collection or deposit in the
          ordinary course of business. The term "Guarantee" used as a verb
          has a corresponding meaning.

               "Guaranteed Indebtedness" has the meaning provided in
          Section 4.07.

               "ICG" means ICG Communications, Inc., a Delaware
          corporation.

               "ICG Common Stock" means common stock, par value $.01 per
          share, of ICG.

               "Incur" means, with respect to any Indebtedness, to incur,
          create, issue, assume, Guarantee or otherwise become liable for
          or with respect to, or become responsible for, the payment of,
          contingently or otherwise, such Indebtedness, including an
          "Incurrence" of Acquired Indebtedness; provided that neither the
                                                 --------
          accrual of interest nor the accretion of original issue discount
          shall be considered an Incurrence of Indebtedness.

               "Indebtedness" means, with respect to any Person at any date
          of determination (without duplication), (i) all indebtedness of
          such Person for borrowed money, (ii) all obligations of such
          Person evidenced by bonds, debentures, notes or other similar
          instruments, (iii) all obligations of such Person in respect of
          letters of credit or other similar instruments (including
          reimbursement obligations with respect thereto, but excluding
          trade letters of credit), (iv) all obligations of such Person to
          pay the deferred and unpaid purchase price of property or
          services, which purchase price is due more than six months after
          the date of placing such property in service or taking delivery
          and title thereto or the completion of such services, except
          Trade Payables and accrued current liabilities arising in the
          ordinary course of business, (v) all Capitalized Lease
          Obligations of such Person, (vi) all Indebtedness referred to in
          clauses (i) through (v) hereof of other Persons secured by a Lien
          on any asset of such Person, whether or not such Indebtedness is
          assumed by such Person; provided that the amount of such 
                                  --------
          Indebtedness shall be the lesser of (A) the fair market value of
          such asset at such date of determination and (B) the amount of
          such Indebtedness, (vii) all Indebtedness of other Persons
          Guaranteed by such Person to the extent such Indebtedness is
          Guaranteed by such Person and (viii) to the extent not otherwise
          included in this definition, obligations under Currency
          Agreements and Interest Rate Agreements.  The amount of
          Indebtedness of any Person at any date shall be the outstanding
          balance at such date (or, in the case of a revolving credit or
          other similar facility, the total amount of principal or interest
          outstanding on the date of determination) of all unconditional
          obligations as described above and, with respect to contingent
          obligations, the maximum liability upon the occurrence of the
          contingency giving rise to the obligation of the types described
          above, provided (A) that the amount outstanding at any time of 
                 --------
          any Indebtedness issued with original issue discount is the
          original issue price of such Indebtedness, (B) that money
          borrowed and set aside at the time of the Incurrence of any
          Indebtedness in order to refund the payment of the interest on
          such Indebtedness shall not be deemed to be "Indebtedness" and
          (C) that Indebtedness shall not include any liability for
          federal, state, local or other taxes.

               "Indenture" means this Indenture as originally executed or
          as it may be amended or supplemented from time to time by one or
          more indentures supplemental to this Indenture entered into
          pursuant to the applicable provisions of this Indenture.

               "Institutional Accredited Investor" shall mean an
          institution that is an "accredited investor" as that term is
          defined in Rule 501(a)(1), (2), (3) or (7) under the Securities Act.
          
               "Interest Payment Date" means each semiannual interest
          payment date on February 15 and August 15 of each year,
          commencing August 15, 2003.

               "Interest Rate Agreement" means any interest rate protection
          agreement, interest rate future agreement, interest rate option
          agreement, interest rate swap agreement, interest rate cap
          agreement, interest rate collar agreement, interest rate hedge
          agreement, option or future contract or other similar agreement
          or arrangement.

               "Internet Service Business" means any business operating an
          internet connectivity or internet enhancement service as it
          exists from time to time, including, without limitation, dial-up
          or dedicated internet service, web hosting or collocation
          services, security solutions, the provision and development of
          software in connection therewith, configuration services,
          electronic commerce, intranet solutions, data backup and
          restoral, business, content and collaboration, communications
          tools or network equipment products or services.

               "Investment" means, with respect to any Person, all
          investments by such Person in other Persons in the form of any
          direct or indirect advance, loan or other extension of credit
          (including, without limitation, by way of Guarantee or similar
          arrangement; but excluding installment sales, capital leasing
          arrangements and financings for and advances to customers, in
          each case in the ordinary course of business that are, in
          conformity with GAAP, recorded as assets on the balance sheet of
          the Company or its Restricted Subsidiaries and commissions,
          travel and similar advances to officers and employees made in the
          ordinary course of business) or capital contribution to (by means
          of any transfer of cash or other property to others or any
          payment for property or services for the account or use of
          others), or any purchase or acquisition of Capital Stock, bonds,
          notes, debentures or other similar instruments issued by, such
          other Person and shall include (i) the designation of a
          Restricted Subsidiary as an Unrestricted Subsidiary and (ii) the
          fair market value of the Capital Stock (or any other Investment),
          held by the Company or any of its Restricted Subsidiaries, of (or
          in) any Person that has ceased to be a Restricted Subsidiary,
          including without limitation, by reason of any transaction
          permitted by clause (iii) of the Section 4.06 hereof; provided 
                                                                --------
          that the fair market value of the Investment remaining in any
          Person that has ceased to be a Restricted Subsidiary shall not
          exceed the aggregate amount of Investments previously made in
          such Person valued at the time such Investments were made less
          the net reduction of such Investments; and provided further that
                                                     -------- -------
          any disposition, sale, lease, transfer, license, transfer of
          rights-of-use of, communications equipment, software and capacity
          and/or provision of services, by the Company or any Restricted
          Subsidiary to ICG or its subsidiaries for fair market value (if,
          at the time of such disposition, sale, lease or transfer, the
          Company or such Restricted Subsidiary is a Subsidiary of ICG)
          will not be deemed to be an Investment.  For purposes of the
          definition of "Unrestricted Subsidiary" and Section 4.04 hereof,
          (i) "Investment" shall include the fair market value of the
          assets (net of liabilities (other than liabilities to the Company
          or any of its Restricted Subsidiaries)) of any Restricted
          Subsidiary at the time that such Restricted Subsidiary is
          designated an Unrestricted Subsidiary, (ii) the fair market value
          of the assets (net of liabilities (other than liabilities to the
          Company or any of its Restricted Subsidiaries)) of any
          Unrestricted Subsidiary at the time that such Unrestricted
          Subsidiary is designated a Restricted Subsidiary shall be
          considered a reduction in outstanding Investments and (iii) any
          property transferred to or from an Unrestricted Subsidiary shall
          be valued at its fair market value at the time of such transfer.

               "Investment Grade Securities" means (i) securities issued or
          directly and fully guaranteed or insured by the United States
          government or any agency or instrumentality thereof (other than
          cash equivalents), (ii) debt securities or debt instruments with
          a rating of BBB+ or higher by S&P or Baa1 or higher by Moody's or
          the equivalent of such rating by such rating organization, or, if
          no rating of S&P or Moody's then exists, the equivalent of such
          rating by any other nationally recognized securities rating
          agency, but excluding any debt securities or instruments
          constituting loans or advances among the Company and its
          Subsidiaries, and (iii) investment in any fund that invests
          exclusively in investments of the type described in clauses (i)
          and (ii) which fund may also hold cash pending investment and/or
          distribution.

               "Lien" means any mortgage, pledge, security interest,
          encumbrance, lien or charge of any kind (including, without
          limitation, any conditional sale or other title retention
          agreement or lease in the nature thereof or any agreement to give
          any security interest).

               "Moody's" means Moody's Investors Service, Inc. and its
          successors.

               "Net Cash Proceeds" means (a) with respect to any Asset
          Sale, the proceeds of such Asset Sale in the form of cash or cash
          equivalents, including payments in respect of deferred payment
          obligations (to the extent corresponding to the principal, but
          not interest, component thereof) when received in the form of
          cash or cash equivalents (except to the extent such obligations
          are financed or sold with recourse to the Company or any
          Restricted Subsidiary) and proceeds from the conversion of other
          property received when converted to cash or cash equivalents, net
          of (i) brokerage commissions and other commissions, fees and
          expenses (including fees and expenses of counsel, accountants and
          investment bankers) related to such Asset Sale and any relocation
          expenses incurred as a result thereof, (ii) provisions for all
          taxes (whether or not such taxes will actually be paid or are
          payable) as a result of such Asset Sale without regard to the
          consolidated results of operations of the Company and its
          Restricted Subsidiaries, taken as a whole, (iii) payments made to
          repay Indebtedness or any other obligation outstanding at the
          time of such Asset Sale that either (A) is secured by a Lien on
          the property or assets sold or (B) is required to be paid as a
          result of such sale and (iv) appropriate amounts to be provided
          by the Company or any Restricted Subsidiary as a reserve against
          any liabilities associated with such Asset Sale, including,
          without limitation, pension and other post-employment benefit
          liabilities, liabilities related to environmental matters and
          liabilities under any indemnification obligations associated with
          such Asset Sale, all as determined in conformity with GAAP and
          (b) with respect to any issuance or sale of Capital Stock, the
          proceeds of such issuance or sale in the form of cash or cash
          equivalents, including payments in respect of deferred payment
          obligations (to the extent corresponding to the principal, but
          not interest, component thereof) when received in the form of
          cash or cash equivalents (except to the extent such obligations
          are financed or sold with recourse to the Company or any
          Restricted Subsidiary) and proceeds from the conversion of other
          property received when converted to cash or cash equivalents, net
          of attorney's fees, accountants' fees, underwriters' or placement
          agents' fees, discounts or commissions and brokerage, consultant
          and other fees incurred in connection with such issuance or sale
          and net of taxes paid or payable as a result thereof.

               "Non-U.S. Person" means a Person who is not a U.S. person,
          as defined in Regulation S.

               "Note Amount" has the meaning provided in Section 4.11
          hereof.

               "Note Register" has the meaning provided in Section 2.04.

               "Notes" means any of the notes, as defined in the first
          paragraph of the recitals hereof, that are authenticated and
          delivered under this Indenture.  For all purposes of this
          Indenture, the term "Notes" shall include any Exchange Notes to
          be issued and exchanged for any Notes pursuant to the
          Registration Rights Agreement and this Indenture and, for
          purposes of this Indenture, all Notes and Exchange Notes shall
          vote together as one series of Notes under this Indenture.

               "Offer to Purchase" means an offer to purchase Notes by the
          Company from the Holders commenced by mailing a notice to the
          Trustee and each Holder stating:  (i) the covenant pursuant to
          which the offer is being made and that all Notes validly tendered
          will be accepted for payment on a pro rata basis; (ii) the
          purchase price and the Payment Date; (iii) that any Note not
          tendered will continue to accrue interest pursuant to its terms;
          (iv) that, unless the Company defaults in the payment of the
          purchase price, any Note accepted for payment pursuant to the
          Offer to Purchase shall cease to accrue interest on and after the
          Payment Date; (v) that Holders electing to have a Note purchased
          pursuant to the Offer to Purchase will be required to surrender
          the Note, together with the form entitled "Option of the Holder
          to Elect Purchase" on the reverse side of the Note completed, to
          the Paying Agent at the address specified in the notice prior to
          the close of business on the Business Day immediately preceding
          the Payment Date; (vi) that Holders will be entitled to withdraw
          their election if the Paying Agent receives, not later than the
          close of business on the third Business Day immediately preceding
          the Payment Date, a telegram, facsimile transmission or letter
          setting forth the name of such Holder, the principal amount of
          Notes delivered for purchase and a statement that such Holder is
          withdrawing his election to have such Notes purchased; and (vii)
          that Holders whose Notes are being purchased only in part will be
          issued new Notes equal in principal amount at maturity to the
          unpurchased portion of the Notes surrendered; provided that each
                                                        --------
          Note purchased and each new Note issued shall be in a principal
          amount of $1,000 or an integral multiple thereof.  On the Payment
          Date, the Company shall (i) accept for payment on a pro rata
          basis Notes or portions thereof tendered pursuant to an Offer to
          Purchase; (ii) deposit with the Paying Agent money sufficient to
          pay the purchase price of all Notes or portions thereof so
          accepted; and (iii) deliver, or cause to be delivered, to the
          Trustee all Notes or portions thereof so accepted together with
          an Officers' Certificate specifying the Notes or portions thereof
          accepted for payment by the Company.  The Paying Agent shall
          promptly mail to the Holders of Notes so accepted payment in an
          amount equal to the purchase price (or, if the Notes are
          represented by one or more permanent global Notes registered in
          the name of The Depository Trust Company or its nominee, by such
          other method as required thereby), and the Trustee shall promptly
          authenticate and mail to such Holders a new Note equal in
          principal amount at maturity to any unpurchased portion of the
          Note surrendered; provided that each Note purchased and each new
                             --------
          Note issued shall be in a principal amount at maturity of $1,000
          or an integral multiple thereof.  The Company will publicly
          announce the results of an Offer to Purchase as soon as
          practicable after the Payment Date.  The Trustee shall act as the
          Paying Agent for an Offer to Purchase.  The Company will comply
          with Rule 14e-1 under the Exchange Act and any other securities
          laws and regulations thereunder to the extent such laws and
          regulations are applicable, in the event that the Company is
          required to repurchase Notes pursuant to an Offer to Purchase.

               "Officer" means, with respect to the Company, (i) the
          Chairman of the Board, the Vice Chairman of the Board, the
          President, the Chief Executive Officer, the Chief Financial
          Officer or a Vice President, and (ii) the Treasurer or any
          Assistant Treasurer, or the Secretary or any Assistant Secretary
          of the Company.

               "Officers' Certificate" means a certificate signed by one
          Officer listed in clause (i) of the definition thereof and one
          Officer listed in clause (ii) of the definition thereof;
          provided, however, that any such certificate may be signed by any
          --------  -------
          two of the Officers listed in clause (i) of the definition
          thereof in lieu of being signed by one Officer listed in clause
          (i) of the definition thereof and one Officer listed in clause
          (ii) of the definition thereof.  Each Officers' Certificate
          (other than certificates provided pursuant to TIA Section
          314(a)(4)) shall include the statements provided for in TIA
          Section 314(e).

               "Offshore Certificated Notes" has the meaning provided in
          Section 2.01.

               "Offshore Global Note" has the meaning provided in Section
          2.01.

               "Opinion of Counsel" means a written opinion signed by legal
          counsel who may be an employee of or counsel to the Company. 
          Each such Opinion of Counsel shall include the statements
          provided for in TIA Section 314(e).

               "Paying Agent" has the meaning provided in Section 2.04,
          except that, for the purposes of Article Eight, the Paying Agent
          shall not be the Company or a Subsidiary of the Company or an
          Affiliate of any of them.  The term "Paying Agent" includes any
          additional Paying Agent.

               "Payment Date" means the date of purchase, which shall be a
          Business Day no earlier than 30 days nor later than 60 days from
          the date of notice is mailed pursuant to an Offer to Purchase.

               "Permanent Regulation S Global Notes" means the permanent
          global Notes issued in exchange for one or more Temporary
          Regulation S Global Notes upon certification that the beneficial
          interests in such global Note are owned by either Non-U.S.
          Persons or U.S. Persons who purchased such interests pursuant to
          an exemption from, or in transactions not subject to, the
          registration requirements of the Securities Act.

               "Permitted Investment" means (i) an Investment in the
          Company or a Restricted Subsidiary or a Person which will, upon
          the making of such Investment, become a Restricted Subsidiary or
          be merged or consolidated with or into or transfer or convey all
          or substantially all its assets to, the Company or a Restricted
          Subsidiary; provided that such Person's primary business is 
                      --------
          related, ancillary or complementary to the businesses of the
          Company and its Restricted Subsidiaries on the date of such
          Investment; (ii) Temporary Cash Investments and Investment Grade
          Securities; (iii) payroll, travel and similar advances to cover
          matters that are expected at the time of such advances ultimately
          to be treated as expenses in accordance with GAAP and reasonable
          advances to sales representatives; (iv) any Investment acquired
          by the Company or any of its Restricted Subsidiaries (x) in
          exchange for any other Investment or accounts receivable held by
          the Company or any such Restricted Subsidiary in connection with
          or as a result of a bankruptcy, workout, reorganization or
          recapitalization of the issuer of such other Investment or
          accounts receivable or (y) as a result of a foreclosure by the
          Company or any of its Restricted Subsidiaries with respect to any
          secured Investment or other transfer of title with respect to any
          secured Investment in default; (v) Guarantees permitted by
          Section 4.03 hereof; (vi) loans or advances to employees of the
          Company or any Restricted Subsidiary that do not in the aggregate
          exceed at any one time outstanding $2.0 million; (vii) Currency
          Agreements and Interest Rate Agreements permitted under Section
          4.03; (viii) Investments in prepaid expenses, negotiable
          instruments held for collection and lease, utility deposits and
          workers' compensation, performance and other similar deposits;
          (ix) Investments in debt securities or other evidences of
          Indebtedness that are issued by companies engaged in the
          Telecommunications Business or the Internet Service Business;
          provided that when each Investment pursuant to this clause (ix) 
          --------
          is made, the aggregate amount of Investments outstanding under
          this clause (ix) does not exceed $3.0 million; (x) Strategic
          Investments and Investments in Permitted Joint Ventures in an
          amount not to exceed $30.0 million at any one time outstanding;
          (xi) an Investment in any Person the primary business of which is
          related, ancillary or complementary to (I) the business of the
          Company and its Subsidiaries on the date of such Investments or
          (II) the Telecommunications Business in an amount not to exceed
          at any time outstanding the sum of (A) $20.0 million plus (B) 10%
          of the Company's Consolidated EBITDA, if positive, for the
          immediately preceding four fiscal quarters (valued in each case
          as provided in the definition of "Investments"); (xii) securities
          received in connection with Asset Sales to the extent
          constituting non-cash consideration permitted under Section 4.11
          hereof; (xiii) stock, obligations or securities received in
          satisfaction of judgments, bankruptcies, workouts or settlements;
          (xiv) Investments in CSW/ICG ChoiceCom, L.P.; and (xv) any
          Investments acquired as capital contribution, including without
          limitation, acquisition of shares of ICG Common Stock.

               "Permitted Joint Venture" means any Unrestricted Subsidiary
          or any other Person in which the Company or a Restricted
          Subsidiary owns, directly or indirectly, an ownership interest
          (other than a Restricted Subsidiary) and whose primary business
          is related, ancillary or complementary to (i) the businesses of
          the Company and its Restricted Subsidiaries at the time of
          determination or (ii) the Telecommunications Business.

               "Permitted Liens" means (i) Liens for taxes, assessments,
          governmental charges or claims that are being contested in good
          faith by appropriate legal proceedings promptly instituted and
          diligently conducted and for which a reserve or other appropriate
          provision, if any, as shall be required in conformity with GAAP
          shall have been made; (ii) statutory and common law Liens of
          landlords and carriers, warehousemen, mechanics, attorneys,
          suppliers, materialmen, repairmen or other similar Liens arising
          in the ordinary course of business, unexercised rights of set
          off, in each case with respect to amounts not yet delinquent or
          that are bonded or being contested in good faith by appropriate
          legal proceedings promptly instituted and diligently conducted
          and for which a reserve or other appropriate provision, if any,
          as shall be required in conformity with GAAP shall have been
          made; (iii) Liens incurred or deposits made in the ordinary
          course of business in connection with workers' compensation,
          unemployment insurance and other types of social security; (iv)
          Liens incurred or deposits made to secure the performance of
          tenders, bids, leases, licenses, statutory or regulatory
          obligations, bankers' acceptances, surety, performance and appeal
          bonds, trade or government contracts, performance and return-of-
          money bonds and other obligations of a similar nature incurred in
          the ordinary course of business (exclusive of obligations for the
          payment of borrowed money); (v) easements (including reciprocal
          easement agreements), rights-of-way, municipal, building and
          zoning ordinances and similar charges, utility agreements,
          covenants, reservations, restrictions, encroachments, charges,
          encumbrances, title defects or other irregularities that do not
          materially interfere with the ordinary course of business of the
          Company or any of its Restricted Subsidiaries; (vi) Liens
          (including extensions and renewals thereof) upon real or personal
          property or other assets or rights acquired after the Closing
          Date; provided that (a) such Lien is created solely for the 
                --------
          purpose of securing Trade Payables that the Company reasonably
          expects to pay within 180 days or Indebtedness Incurred, in
          accordance with Section 4.03, to finance the cost of (including
          the cost of design, development, acquisition, construction,
          installment, improvements, transportation or integration) or to
          acquire the item of property or assets subject thereto
          (including, without limitation, acquisition by way of
          acquisitions of real property, leasehold improvements, licenses,
          rights-of-use, Capitalized Leases and installment sales, and any
          refinancings thereof) and such Lien is created prior to, at the
          time of or within six months after the later of the acquisition,
          the completion of construction or the commencement of full
          operation of such property, (b) the principal amount of the Trade
          Payables or Indebtedness secured by such Lien does not exceed
          100% of such cost and (c) any such Lien shall not extend to or
          cover any property or assets other than such item of property or
          assets and any improvements on such item; (vii) leases,
          subleases, licenses and rights-of-use granted to others and
          rights of purchase pursuant to installment sales that do not
          materially interfere with the ordinary course of business of the
          Company and its Restricted Subsidiaries, taken as a whole; (viii)
          Liens encumbering property or assets under construction arising
          from progress or partial payments by a customer of the Company or
          its Restricted Subsidiaries relating to such property or assets;
          (ix) any interest or title of a lessor in the property subject to
          any Capitalized Lease or operating lease; (x) Liens arising from
          filing Uniform Commercial Code financing statements regarding
          leases or installment sales; (xi) Liens on property of, or on
          shares of Capital Stock or Indebtedness of, any Person existing
          at the time such Person becomes, or becomes a part of, any
          Restricted Subsidiary; provided that such Liens do not extend to
                                 --------
          or cover any property or assets of the Company or any Restricted
          Subsidiary other than the property or assets acquired; (xii)
          Liens in favor of the Company or any Restricted Subsidiary;
          (xiii) Liens arising from the rendering of a final judgment or
          order against the Company or any Restricted Subsidiary that does
          not give rise to an Event of Default; (xiv) Liens securing
          reimbursement obligations with respect to letters of credit that
          encumber documents and other property relating to such letters of
          credit and the products and proceeds thereof; (xv) Liens in favor
          of customs and revenue authorities arising as a matter of law to
          secure payment of customs duties in connection with the
          importation of goods; (xvi) Liens encumbering customary initial
          deposits and margin deposits, and other Liens that are within the
          general parameters customary in the industry and incurred in the
          ordinary course of business, in each case, securing Indebtedness
          under Interest Rate Agreements and Currency Agreements and
          forward contracts, options, future contracts, futures options or
          similar agreements or arrangements designed solely to protect the
          Company or any of its Restricted Subsidiaries from fluctuations
          in interest rates, currencies or the price of commodities; (xvii)
          Liens arising out of conditional sale, installment sales, title
          retention, consignment or similar arrangements for the sale of
          goods entered into by the Company or any of its Restricted
          Subsidiaries in the ordinary course of business; and (xviii)
          Liens on or sales of receivables.

               "Person" means an individual, a corporation, a partnership,
          a limited liability company, a joint venture, an association, a
          trust, an unincorporated organization or any other entity or
          organization, including a government or political subdivision or
          an agency or instrumentality thereof.

               "Preferred Stock" or "preferred stock" means, with respect
          to any Person, any and all shares, interests, participation or
          other equivalents (however designated, whether voting or non-
          voting) of such Person's preferred or preference stock, whether
          now outstanding or issued after the date of this Indenture,
          including, without limitation, all series and classes of such
          preferred or preference stock.

               "principal" of a debt security, including the Notes, means
          the principal amount due on the Stated Maturity as shown on such
          debt security.

               "Private Placement Legend" means the legend initially set
          forth on the Notes in the form set forth in Section 2.02(a).

               "QIB" means a "qualified institutional buyer" as defined in
          Rule 144A.

               "Redemption Date", when used with respect to any Note or
          part thereof to be redeemed, means the date fixed for such
          redemption by or pursuant to the terms of the Notes and this
          Indenture.

               "Redemption Price", when used with respect to any Note or
          part thereof to be redeemed, means the price at which such Note
          is to be redeemed pursuant to the terms of the Notes and this
          Indenture.

               "Registrar" has the meaning provided in Section 2.04.

               "Registration" has the meaning provided in Section 4.18.

               "Registration Rights Agreement" means the Registration
          Rights Agreement, dated February 12, 1998, between the Company
          and Morgan Stanley & Co. Incorporated relating to the Notes.

               "Registration Statement" means any registration statement of
          the Company that covers any of the Exchange Notes, and all
          amendments and supplements to any such Registration Statement,
          including post-effective amendments, in each case including the
          prospectus contained therein, all exhibits thereto and all
          material incorporated by reference therein.

               "Regular Record Date" for the interest payable on any
          Interest Payment Date means the February 1 or August 1 (whether
          or not a Business Day), as the case may be, next preceding such
          Interest Payment Date.

               "Regulation S" means Regulation S under the Securities Act.

               "Responsible Officer", when used with respect to the
          Trustee, means the chairman or any vice chairman of the board of
          directors, the chairman or any vice chairman of the executive
          committee of the board of directors, the chairman of the trust
          committee, the president, any vice president, any assistant vice
          president, the secretary, any assistant secretary, the treasurer,
          any assistant treasurer, the cashier, any assistant cashier, any
          trust officer or assistant trust officer, the controller or any
          assistant controller or any other officer of the Trustee
          customarily performing functions similar to those performed by
          any of the above designated officers and also means, with respect
          to a particular corporate trust matter, any other officer to whom
          such matter is referred because of his or her knowledge of and
          familiarity with the particular subject.

               "Restricted Payments" has the meaning provided in Section
          4.04.

               "Restricted Subsidiary" means any Subsidiary of the Company
          other than an Unrestricted Subsidiary.

               "Rule 144A" means Rule 144A under the Securities Act.

               "S&P" means Standard & Poor's Ratings Services and its
          successors.

               "Securities Act" means the Securities Act of 1933, as
          amended.

               "Shelf Registration Statement" means Shelf Registration
          Statement as defined in the Registration Rights Agreement.

               "Significant Subsidiary" means, at any date of
          determination, any Restricted Subsidiary that, together with its
          Subsidiaries, (i) for the most recent fiscal year of the Company,
          accounted for more than 10% of the consolidated revenues of the
          Company and its Restricted Subsidiaries or (ii) as of the end of
          such fiscal year, was the owner of more than 10% of the
          consolidated assets of the Company and its Restricted
          Subsidiaries, all as set forth on the most recently available
          consolidated financial statements of the Company for such fiscal
          year.

               "Southwest Communications Business" means the Company's or
          any of its Subsidiaries' (A) Internet connectivity or Internet
          enhancement service as it exists from time to time in the states
          of Texas, Louisiana, Arkansas and Oklahoma, including, without
          limitation, dial-up or dedicated Internet service, Web site
          hosting or collocation services, security solutions, the
          provision and development of software in connection therewith,
          configuration services, electronic commerce, intranet solutions,
          data backup and restoral, business content and collaboration,
          communications tools or network equipment products or services
          and (B) development, ownership or operations of one or more
          telephone, telecommunications or information systems or the
          provision of telephony, telecommunications or information
          services (including, without limitation, any voice, video, data
          or Internet services) and any related, ancillary or complementary
          business in the states of Texas, Louisiana, Arkansas and
          Oklahoma.

               "Specified Date" means any Redemption Date, any Payment Date
          for an Offer to Purchase or any date on which the Notes first
          become due and payable after an Event of Default.

               "Stated Maturity" means (i) with respect to any debt
          security, the date specified in such debt security as the fixed
          date on which the final installment of principal of such debt
          security is due and payable and (ii) with respect to any
          scheduled installment of principal of or interest on any debt
          security, the date specified in such debt security as the fixed
          date on which such installment is due and payable.

               "Strategic Investments" means (A) Investments that the Board
          of Directors has determined in good faith will enable the Company
          or any of its Restricted Subsidiaries to obtain additional
          business that it might not be able to obtain without making such
          Investment and (B) Investments in entities the principal function
          of which is to perform research and development with respect to
          products and services that may be used or useful in the
          Telecommunications Business or the Internet Service Business;
          provided that the Company or one of its Restricted Subsidiaries 
          --------
          is entitled or otherwise reasonably expected to obtain rights to
          such products or services as a result of such Investment.

               "Strategic Subordinated Indebtedness" means Indebtedness of
          the Company that (i) is expressly made subordinate in right of
          payment to the Notes and (ii) provides that no payment of
          principal, premium or interest on, or any other payment with
          respect to, such Indebtedness may be made prior to the payment in
          full of all of the Company's obligations under the Notes.

               "Subsidiary" means, with respect to any Person, (i) any
          corporation, association, or other business entity (other than a
          partnership) of which more than 50% of the total voting power of
          shares of Capital Stock entitled (without regard to the
          occurrence of any contingency) to vote in the election of
          directors, managers or trustees thereof is at the time of
          determination owned or controlled, directly or indirectly, by
          such Person or one or more of the other Subsidiaries of such
          Person or a combination thereof and (ii) any partnership, joint
          venture, limited liability company or similar entity of which (x)
          more than 50% of the capital accounts, distribution rights, total
          equity and voting interests or general or limited partnership
          interests, as applicable, are owned or controlled, directly or
          indirectly, by such Person or one or more of the other
          Subsidiaries of such Person or a combination thereof whether in
          the form of membership, general, special or limited partnership
          or otherwise and (y) such Person or any Wholly Owned Restricted
          Subsidiary of such Person is a general partner or otherwise
          controls such entity.

               "Telecommunications Business" means the development,
          ownership or operation of one or more telephone,
          telecommunications or information systems or the provision of
          telephony, telecommunications or information services (including,
          without limitation, any voice, video, data or Internet services)
          and any related, ancillary or complementary business.

               "Temporary Cash Investment" means any of the following:  (i)
          direct obligations of the United States of America or any agency
          thereof or obligations fully and unconditionally guaranteed by
          the United States of America or any agency or instrumentality
          thereof, (ii) deposit accounts, time deposit accounts,
          certificates of deposit, eurodollar time deposits, overnight bank
          deposits and money market deposits maturing within one year or
          less of the date of acquisition thereof issued by a bank or trust
          company which is organized under the laws of the United States of
          America, any state thereof or any foreign country recognized by
          the United States of America, and which bank or trust company has
          capital, surplus and undivided profits aggregating in excess of
          $50 million (or the foreign currency equivalent thereof) and has
          outstanding debt which is rated "A" (or such similar equivalent
          rating) or higher by at least one nationally recognized
          statistical rating organization (as defined in Rule 436 under the
          Securities Act) or any money-market fund sponsored by a
          registered broker dealer or mutual fund distributor, (iii)
          repurchase obligations with a term of not more than 30 days for
          underlying securities of the types described in clauses (i) and
          (ii) above entered into with a bank meeting the qualifications
          described in clause (ii) above, (iv) commercial paper, maturing
          not more than 90 days after the date of acquisition, issued by a
          corporation (other than an Affiliate of the Company) organized
          and in existence under the laws of the United States of America,
          any state thereof or any foreign country recognized by the United
          States of America with a rating at the time as of which any
          investment therein is made of "P-1" (or higher) according to
          Moody's or "A-1" (or higher) according to S&P, (v) securities
          with maturities of six months or less from the date of
          acquisition issued or fully and unconditionally guaranteed by any
          state, commonwealth or territory of the United States of America,
          or by any political subdivision or taxing authority thereof, and
          rated at least "A" by S&P or Moody's, and (vi) investment funds
          investing 95% of their assets in securities of the type described
          in clauses (i) through (v) above.

               "Temporary Regulation S Global Note" means the Global Note
          bearing the Private Placement Legend in bearer form without
          interest coupons, that will be issued in a denomination equal to
          the outstanding principal amount of the Notes sold in reliance on
          Regulation S and deposited with the Trustee, as custodian for the
          Depository.

               "TIA" or "Trust Indenture Act" means the Trust Indenture Act
          of 1939, as amended (15 U.S. Code SS. 77aaa-77bbb), as in effect
          on the date this Indenture was executed, except as provided in
          Section 9.06; provided, however, that, in the event the Trust 
                        --------  -------
          Indenture Act of 1939 is amended after such date, "TIA" or "Trust
          Indenture Act" means, to the extent required by any such
          amendment, the Trust Indenture Act of 1939 as so amended.

               "Trade Payables" means, with respect to any Person, any
          accounts payable or any other indebtedness or monetary obligation
          to trade creditors created, assumed or Guaranteed by such Person
          or any of its Subsidiaries arising in the ordinary course of
          business in connection with the acquisition of goods or services
          and required to be paid within one year.

               "Transaction Date" means, with respect to the Incurrence of
          any Indebtedness by the Company or any of its Restricted
          Subsidiaries, the date such Indebtedness is to be Incurred and,
          with respect to any Restricted Payment, the date such Restricted
          Payment is to be made.

               "Trustee" means the party named as such in the first
          paragraph of this Indenture until a successor replaces it in
          accordance with the provisions of Article Seven of this Indenture
          and thereafter means such successor.

               "United States Bankruptcy Code" means the Bankruptcy Reform
          Act of 1978, as amended and as codified in Title 11 of the United
          States Code, as amended from time to time hereafter, or any
          successor federal bankruptcy law.

               "Unrestricted Subsidiary" means (i) any Subsidiary of the
          Company that at the time of determination shall be designated an
          Unrestricted Subsidiary by the Board of Directors in the manner
          provided below; and (ii) any Subsidiary of an Unrestricted
          Subsidiary. The Board of Directors may designate any Restricted
          Subsidiary (including any newly acquired or newly formed
          Subsidiary of the Company) to be an Unrestricted Subsidiary
          unless such Subsidiary owns any Capital Stock of, or owns or
          holds any Lien on any property of, the Company or any Restricted
          Subsidiary; provided that (A) any Guarantee by the Company or any
                      --------
          Restricted Subsidiary of any Indebtedness of the Subsidiary being
          so designated shall be deemed an "Incurrence" of such
          Indebtedness and an "Investment" by the Company or such
          Restricted Subsidiary (or both, if applicable) at the time of
          such designation; (B) either (I) the Subsidiary to be so
          designated has total assets of $1,000 or less or (II) if such
          Subsidiary has assets greater than $1,000, such designation would
          be permitted under Section 4.04 and (C) if applicable, the
          Incurrence of Indebtedness and the Investment referred to in
          clause (A) of this proviso would be permitted under Sections 4.03
          and 4.04.  The Board of Directors may designate any Unrestricted
          Subsidiary to be a Restricted Subsidiary; provided that (i) no 
                                                    --------
          Default or Event of Default shall have occurred and be continuing
          at the time of or after giving effect to such designation and
          (ii) all Liens and Indebtedness of such Unrestricted Subsidiary
          outstanding immediately after such designation would, if Incurred
          at such time, have been permitted to be Incurred (and shall be
          deemed to have been Incurred) for all purposes of this Indenture. 
          Any such designation by the Board of Directors shall be evidenced
          to the Trustee by promptly filing with the Trustee a copy of the
          Board Resolution giving effect to such designation and an
          Officers' Certificate certifying that such designation complied
          with the foregoing provisions.

               "U.S. Certificated Notes" has the meaning provided in
          Section 2.01.

               "U.S. Global Note" has the meaning provided in Section 2.01.

               "U.S. Government Obligations" means securities that are (i)
          direct obligations of the United States of America for the
          payment of which its full faith and credit is pledged or (ii)
          obligations of a Person controlled or supervised by and acting as
          an agency or instrumentality of the United States of America the
          payment of which is unconditionally guaranteed as a full faith
          and credit obligation by the United States of America, which, in
          either case, are not callable or redeemable at the option of the
          issuer thereof at any time prior to the Stated Maturity of the
          Notes, and shall also include depository receipts issued by a
          bank or trust company as custodian with respect to any such U.S.
          Government Obligation or a specific payment of interest on or
          principal of any such U.S. Government Obligation held by such
          custodian for the account of the holder of a depository receipt;
          provided that (except as required by law) such custodian is not 
          --------
          authorized to make any deduction from the amount payable to the
          holder of such depository receipt from any amount received by the
          custodian in respect of the U.S. Government Obligation or the
          specific payment of interest on or principal of the U.S.
          Government Obligation evidenced by such depository receipt.

               "U.S. Person" has the meaning ascribed thereto in Rule 902
          under the Securities Act.

               "Voting Stock" means, with respect to any Person, Capital
          Stock of any class or kind ordinarily having the power to vote
          for the election of directors, managers or other voting members
          of the governing body of such Person.

               "Wholly Owned" means, with respect to any Subsidiary of any
          Person, the ownership of all of the outstanding Capital Stock of
          such Subsidiary (other than any director's qualifying shares or
          Investments by foreign nationals mandated by applicable law) by
          such Person or one or more Wholly Owned Subsidiaries of such
          Person.

                    SECTION 1.02.  Incorporation by Reference of Trust 
                                   -----------------------------------
          Indenture Act.  Whenever this Indenture refers to a provision of
          -------------
          the TIA, the provision is incorporated by reference in and made a
          part of this Indenture.  The following TIA terms used in this
          Indenture have the following meanings:

                    "indenture securities" means the Notes;

                    "indenture security holder" means a Holder or a
               Noteholder;

                    "indenture to be qualified" means this Indenture;

                    "indenture trustee" or "institutional trustee" means
               the Trustee; and

                    "obligor" on the indenture securities means the Company
               or any other obligor on the Notes.

                    All other TIA terms used in this Indenture that are
          defined by the TIA, defined by TIA reference to another statute
          or defined by a rule of the Commission and not otherwise defined
          herein have the meanings assigned to them therein.

                    SECTION 1.03.  Rules of Construction.  Unless the 
                                   ---------------------
          context otherwise requires:

                    (i)    a term has the meaning assigned to it;

                    (ii)   an accounting term not otherwise defined has the
               meaning assigned to it in accordance with GAAP;

                    (iii)  "or" is not exclusive;

                    (iv)   words in the singular include the plural, and
               words in the plural include the singular;

                    (v)    provisions apply to successive events and
               transactions;

                    (vi)   "herein," "hereof" and other words of similar
               import refer to this Indenture as a whole and not to any
               particular Article, Section or other subdivision; and

                    (vii)  all references to Sections or Articles refer to
               Sections or Articles of this Indenture unless otherwise
               indicated.


                                     ARTICLE TWO
                                      THE NOTES

                    SECTION 2.01.  Form and Dating.  The Notes and the 
                                   ---------------
          Trustee's certificate of authentication shall be substantially in
          the form annexed hereto as Exhibit A.  The Notes may have such
          appropriate insertions, omissions, substitutions and other
          variations as are required or permitted by this Indenture and may
          have letters, notations, legends or endorsements required by law,
          stock exchange agreements to which the Company is subject or
          usage.  Any portion of the text of any Note may be set forth on
          the reverse thereof, with an appropriate reference thereto on the
          face of the Note.  The Company shall approve the form of the
          Notes and any notation, legend or endorsement on the Notes.  Each
          Note shall be dated the date of its authentication.

                    The terms and provisions contained in the form of the
          Notes annexed hereto as Exhibit A shall constitute, and are
          hereby expressly made, a part of this Indenture.  Each of the
          Company and the Trustee, by its execution and delivery of this
          Indenture, expressly agrees to the terms and provisions of the
          Notes applicable to it and to be bound thereby.

                    Notes offered and sold in reliance on Rule 144A shall
          be issued initially in the form of one or more permanent global
          Notes in registered form, substantially in the form set forth in
          Exhibit A (the "U.S. Global Note"), deposited with the Trustee, 
                          ----------------
          as custodian for the Depository, duly executed by the Company and
          authenticated by the Trustee as hereinafter provided.  The
          aggregate principal amount at maturity of a U.S. Global Note may
          from time to time be increased or decreased by adjustments made
          on the records of the Trustee, as custodian for the Depository or
          its nominee, as hereinafter provided.

                    Notes offered and sold in offshore transactions in
          reliance on Regulation S shall be issued initially in the form of
          one or more temporary global Notes in registered form
          substantially in the form set forth in Exhibit A (the "Temporary
                                                                 ---------
          Regulation S Global Note"), deposited on behalf of the purchasers
          ------------------------
          of the Notes represented thereby with the Trustee, as custodian
          for the Depository, duly executed by the Company and
          authenticated by the Trustee as hereinafter provided.  At any
          time following March 24, 1998 upon receipt by the Trustee and the
          Company of a certificate substantially in the form of Exhibit B
          hereto, one or more permanent global Notes in registered form
          substantially in the form set forth in Exhibit A (the "Permanent
                                                                 ---------
          Regulation S Global Note" and together with the Temporary 
          ------------------------
          Regulation S Global Note, the "Offshore Global Note") duly 
                                         --------------------
          executed by the Company and authenticated by the Trustee as
          hereinafter provided shall be deposited with the Trustee, as
          custodian for the Depository, which shall reflect on its books
          and records the date and a decrease in the principal amount of
          the Temporary Regulation S Global Notes in an amount equal to the
          principal amount of the beneficial interest in the Temporary
          Regulation S Global Notes transferred.  The aggregate principal
          amount at maturity of an Offshore Global Note may from time to
          time be increased or decreased by adjustments made in the records
          of the Trustee, as custodian for the Depository or its nominee,
          as herein provided.

                    Notes offered and sold to Institutional Accredited
          Investors which are not QIBs (excluding Non-U.S. Persons) shall
          be issued in the form of permanent certificated Notes in
          registered form in substantially the form set forth in Exhibit A
          (the "U.S. Certificated Notes").  Notes issued pursuant to 
                -----------------------
          Section 2.07 in exchange for interests in the Offshore Global
          Note shall be in the form of certificated Notes in registered
          form substantially in the form set forth in Exhibit A (the
          "Offshore Certificated Notes").  Notes issued pursuant to 
           ---------------------------
          Section 2.07 in exchange for interests in the U.S. Global Note
          shall be in the form of the U.S. Certificated Note.

                    The Offshore Certificated Notes and the U.S.
          Certificated Notes are sometimes collectively referred to herein
          as the "Certificated Notes".  The U.S. Global Notes and Offshore
                  ------------------
          Global Notes are sometimes collectively herein referred to as the
          "Global Notes".
           ------------

                    The definitive Notes shall be typed, printed,
          lithographed or engraved or produced by any combination of these
          methods or may be produced in any other manner permitted by the
          rules of any securities exchange on which the Notes may be
          listed, all as determined by the officers executing such Notes,
          as evidenced by their execution of such Notes.

                    SECTION 2.02.  Restrictive Legends.  (a)  Note Legends. 
                                   -------------------        ------------
          Unless and until a Note is exchanged for an Exchange Note or
          otherwise disposed of in connection with an effective
          Registration Statement pursuant to the Registration Rights
          Agreement, (i) each U.S. Global Note and each U.S. Certificated
          Note shall bear the legend, set forth below on the face thereof
          and (ii) each Offshore Certificated Note and each Temporary
          Regulation S Global Note shall bear the legend set forth below on
          the face thereof until at least 41 days after the Closing Date
          and receipt by the Company and the Trustee of a certificate
          substantially in the form of Exhibit B hereto.

               THIS NOTE HAS NOT BEEN REGISTERED UNDER THE U.S. SECURITIES
               ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR ANY STATE
               SECURITIES LAWS, AND ACCORDINGLY, MAY NOT BE OFFERED, SOLD, 
               PLEDGED OR OTHERWISE TRANSFERRED WITHIN THE UNITED STATES OR
               TO, OR FOR THE ACCOUNT OR BENEFIT OF, U.S. PERSONS EXCEPT AS
               SET FORTH IN THE FOLLOWING SENTENCE.  BY ITS ACQUISITION
               HEREOF, THE HOLDER (1) REPRESENTS THAT (A) IT IS A
               "QUALIFIED INSTITUTIONAL BUYER" (AS DEFINED IN RULE 144A
               UNDER THE SECURITIES ACT) OR (B) IT IS AN INSTITUTIONAL
               "ACCREDITED INVESTOR" (AS DEFINED IN RULE 501(a)(1), (2),
               (3) OR (7) OF REGULATION D UNDER THE SECURITIES ACT) (AN
               "INSTITUTIONAL ACCREDITED INVESTOR") OR (C) IT IS NOT A U.S.
               PERSON AND IS ACQUIRING THIS NOTE IN AN OFFSHORE TRANSACTION
               IN COMPLIANCE WITH REGULATION S UNDER THE SECURITIES ACT;
               (2) AGREES THAT IT WILL NOT, WITHIN THE TIME PERIOD REFERRED
               TO IN RULE 144(k) (TAKING INTO ACCOUNT THE PROVISIONS OF
               RULE 144(d) UNDER THE SECURITIES ACT, IF APPLICABLE), RESELL
               OR OTHERWISE TRANSFER THIS NOTE EXCEPT (A) TO THE COMPANY OR
               ANY SUBSIDIARY THEREOF, (B) TO A QUALIFIED INSTITUTIONAL
               BUYER IN COMPLIANCE WITH RULE 144A UNDER THE SECURITIES ACT,
               (C) INSIDE THE UNITED STATES TO AN INSTITUTIONAL ACCREDITED
               INVESTOR THAT, PRIOR TO SUCH TRANSFER, FURNISHES TO THE
               TRUSTEE A SIGNED LETTER CONTAINING CERTAIN REPRESENTATIONS
               AND AGREEMENTS RELATING TO THE RESTRICTIONS ON TRANSFER OF
               THIS NOTE (THE FORM OF WHICH LETTER CAN BE OBTAINED FROM THE
               TRUSTEE) AND IF SUCH TRANSFER IS IN RESPECT OF AN AGGREGATE
               ACCRETED VALUE OF NOTES AT THE TIME OF TRANSFER OF LESS THAN
               $250,000 AN OPINION OF COUNSEL ACCEPTABLE TO THE COMPANY
               THAT SUCH TRANSFER IS IN COMPLIANCE WITH THE SECURITIES ACT,
               (D) OUTSIDE THE UNITED STATES IN AN OFFSHORE TRANSACTION IN
               COMPLIANCE WITH RULE 904 UNDER THE SECURITIES ACT,
               (E) PURSUANT TO THE EXEMPTION FROM REGISTRATION PROVIDED BY
               RULE 144 UNDER THE SECURITIES ACT (IF AVAILABLE) OR
               (F) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER
               THE SECURITIES ACT AND (3) AGREES THAT IT WILL DELIVER TO
               EACH PERSON TO WHOM THIS NOTE IS TRANSFERRED A NOTICE
               SUBSTANTIALLY TO THE EFFECT OF THIS LEGEND.  IN CONNECTION
               WITH ANY TRANSFER OF THIS NOTE WITHIN THE TIME PERIOD
               REFERRED TO ABOVE, THE HOLDER MUST CHECK THE APPROPRIATE BOX
               SET FORTH ON THE REVERSE HEREOF RELATING TO THE MANNER OF
               SUCH TRANSFER AND SUBMIT THIS CERTIFICATE TO THE TRUSTEE. 
               IF THE PROPOSED TRANSFEREE IS AN INSTITUTIONAL ACCREDITED
               INVESTOR, THE HOLDER MUST, PRIOR TO SUCH TRANSFER, FURNISH
               TO EACH OF THE TRUSTEE AND THE COMPANY SUCH CERTIFICATIONS,
               LEGAL OPINIONS OR OTHER INFORMATION AS SUCH PERSONS MAY
               REASONABLY REQUIRE TO CONFIRM THAT SUCH TRANSFER IS BEING
               MADE PURSUANT TO AN EXEMPTION FROM, OR IN A TRANSACTION NOT
               SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES
               ACT.  AS USED HEREIN, THE TERMS "OFFSHORE TRANSACTION,"
               "UNITED STATES" AND "U.S. PERSON" HAVE THE MEANINGS GIVEN TO
               THEM BY REGULATION S UNDER THE SECURITIES ACT.  THE
               INDENTURE CONTAINS A PROVISION REQUIRING THE TRUSTEE TO
               REFUSE TO REGISTER ANY TRANSFER OF THIS NOTE IN VIOLATION OF
               THE FOREGOING RESTRICTIONS.

                    (b)    Global Note Legend.  Each Global Note, whether 
                           ------------------
          or not an Exchange Note, shall also bear the following legend on
          the face thereof:

               UNLESS THIS GLOBAL NOTE IS PRESENTED BY AN AUTHORIZED
               REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY TO THE
               COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE
               OR PAYMENT, AND ANY NOTE ISSUED IS REGISTERED IN THE NAME OF
               CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN
               AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY OR
               SUCH OTHER REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY OR
               SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED
               REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (AND ANY
               PAYMENT HEREON IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY
               AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE
               DEPOSITORY TRUST COMPANY), ANY TRANSFER, PLEDGE OR OTHER USE
               HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS
               WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS
               AN INTEREST HEREIN.

               TRANSFERS OF THIS GLOBAL NOTE SHALL BE LIMITED TO TRANSFERS
               IN WHOLE, BUT NOT IN PART, TO NOMINEES OF CEDE & CO. OR TO A
               SUCCESSOR THEREOF OR SUCH SUCCESSOR'S NOMINEE AND TRANSFERS
               OF PORTIONS OF THIS GLOBAL NOTE SHALL BE LIMITED TO
               TRANSFERS MADE IN ACCORDANCE WITH THE RESTRICTIONS SET FORTH
               IN SECTION 2.08 OF THE INDENTURE.

                    SECTION 2.03.  Execution, Authentication and 
                                   -----------------------------
          Denominations.  Subject to Article Four, the aggregate principal
          -------------
          amount at maturity of Notes (including Exchange Notes) which may
          be authenticated and delivered under this Indenture is unlimited. 
          The Notes shall be executed by two Officers of the Company, by
          facsimile or manual signature, in the name and on behalf of the
          Company.

                    If an Officer whose signature is on a Note no longer
          holds that office at the time the Trustee or authenticating agent
          authenticates the Note, the Note shall be valid nevertheless.

                    A Note shall not be valid until the Trustee or
          authenticating agent manually signs the certificate of
          authentication on the Note.  The signature shall be conclusive
          evidence that the Note has been authenticated under this
          Indenture.

                    At any time and from time to time after the execution
          of this Indenture, the Trustee or an authenticating agent shall,
          upon receipt of a Company Order, authenticate for original issue
          Notes in the aggregate principal amount at maturity specified in
          such Company Order; provided that the Trustee shall be entitled 
                              --------
          to receive an Officers' Certificate and an Opinion of Counsel of
          the Company if it so reasonably requests in connection with such
          authentication of Notes.  Such Company Order shall specify the
          amount of Notes to be authenticated, the date on which the issue
          of Notes is to be authenticated and in case of an issuance of
          Notes pursuant to Section 2.15, shall certify that such issuance
          is in compliance with Article Four.

                    The Trustee may appoint an authenticating agent to
          authenticate Notes.  An authenticating agent may authenticate
          Notes whenever the Trustee may do so.  Each reference in this
          Indenture to authentication by the Trustee includes
          authentication by such authenticating agent.  An authenticating
          agent has the same rights as an Agent to deal with the Company or
          an Affiliate of the Company.

                    The Notes shall be issuable only in registered form
          without coupons and only in denominations of $1,000 in principal
          amount at maturity and any integral multiple of $1,000 in excess
          thereof.

                    SECTION 2.04.  Registrar and Paying Agent.  The Company
                                   --------------------------
          shall maintain an office or agency where Notes may be presented
          for registration of transfer or for exchange (the "Registrar"), 
                                                             ---------
          an office or agency where Notes may be presented for payment (the
          "Paying Agent") and an office or agency where notices and demands 
           ------------
          to or upon the Company in respect of the Notes and this Indenture
          may be served, which shall be in the Borough of Manhattan, The
          City of New York.  The Company shall cause the Registrar to keep
          a register of the Notes and of their transfer and exchange (the
          "Note Register").  The Company may have one or more co-Registrars 
           -------------
          and one or more additional Paying Agents.

                    The Company shall enter into an appropriate agency
          agreement with any Agent not a party to this Indenture.  The
          agreement shall implement the provisions of this Indenture that
          relate to such Agent.  The Company shall give prompt written
          notice to the Trustee of the name and address of any such Agent
          and any change in the address of such Agent.  If the Company
          fails to maintain a Registrar, Paying Agent and/or agent for
          service of notices and demands, the Trustee shall act as such
          Registrar, Paying Agent and/or agent for service of notices and
          demands for so long as such failure shall continue.  The Company
          may remove any Agent upon written notice to such Agent and the
          Trustee; provided that no such removal shall become effective 
                   --------
          until (i) the acceptance of an appointment by a successor Agent
          to such Agent as evidenced by an appropriate agency agreement
          entered into by the Company and such successor Agent and
          delivered to the Trustee or (ii) notification to the Trustee that
          the Trustee shall serve as such Agent until the appointment of a
          successor Agent in accordance with clause (i) of this proviso. 
          The Company, any Subsidiary of the Company, or any Affiliate of
          any of them may act as Paying Agent, Registrar or co-Registrar,
          and/or agent for service of notice and demands; provided, 
                                                          --------
          however, that neither the Company, a Subsidiary of the Company 
          -------
          nor an Affiliate of any of them shall act as Paying Agent in
          connection with the defeasance of the Notes or the discharge of
          this Indenture under Article Eight.

                    The Company initially appoints the Trustee as
          Registrar, Paying Agent, authenticating agent and agent for
          service of notice and demands.  If, at any time, the Trustee is
          not the Registrar, the Registrar shall make available to the
          Trustee on or before each Interest Payment Date and at such other
          times as the Trustee may reasonably request, the names and
          addresses of the Holders as they appear in the Note Register.

                    SECTION 2.05.  Paying Agent to Hold Money in Trust.  
                                   -----------------------------------
          Not later than 10:00 a.m. New York City time on each due date of
          the principal, premium, if any, or interest on any Notes, the
          Company shall deposit with the Paying Agent money in immediately
          available funds sufficient to pay such principal, premium, if
          any, or interest so becoming due.  The Company shall require each
          Paying Agent, if any, other than the Trustee to agree in writing
          that such Paying Agent shall hold in trust for the benefit of the
          Holders or the Trustee all money held by the Paying Agent for the
          payment of principal of, premium, if any, or interest on the
          Notes (whether such money has been paid to it by the Company or
          any other obligor on the Notes), and that such Paying Agent shall
          promptly notify the Trustee of any default by the Company (or any
          other obligor on the Notes) in making any such payment.  The
          Company at any time may require a Paying Agent to pay all money
          held by it to the Trustee and account for any funds disbursed,
          and the Trustee may at any time during the continuance of any
          payment default, upon written request to a Paying Agent, require
          such Paying Agent to pay all money held by it to the Trustee and
          to account for any funds disbursed.  Upon doing so, the Paying
          Agent shall have no further liability for the money so paid over
          to the Trustee.  If the Company or any Subsidiary of the Company
          or any Affiliate of any of them acts as Paying Agent, it will, on
          or before each due date of any principal of, premium, if any, or
          interest on the Notes, segregate and hold in a separate trust
          fund for the benefit of the Holders a sum of money sufficient to
          pay such principal, premium, if any, or interest so becoming due
          until such sum of money shall be paid to such Holders or
          otherwise disposed of as provided in this Indenture, and will
          promptly notify the Trustee of its action or failure to act as
          required by this Section 2.05.

                    SECTION 2.06.  Transfer and Exchange.  The Notes are 
                                   ---------------------
          issuable only in registered form.  A Holder may transfer a Note
          by written application to the Registrar stating the name of the
          proposed transferee and otherwise complying with the terms of
          this Indenture.  No such transfer shall be effected until, and
          such transferee shall succeed to the rights of a Holder only upon
          registration of the transfer by the Registrar in the Note
          Register.  Prior to the registration of any transfer by a Holder
          as provided herein, the Company, the Trustee, and any agent of
          the Company shall treat the Person in whose name the Note is
          registered as the owner thereof for all purposes whether or not
          the Note shall be overdue, and neither the Company, the Trustee,
          nor any such agent shall be affected by notice to the contrary. 
          Furthermore, any Holder of a Global Note shall, by acceptance of
          such Global Note, agree that transfers of beneficial interests in
          such Global Note may be effected only through a book-entry system
          maintained by the Depository (or its agent), and that ownership
          of a beneficial interest in the Note shall be required to be
          reflected in a book entry.  When Notes are presented to the
          Registrar or a co-Registrar with a request to register the
          transfer or to exchange them for an equal principal amount at
          maturity of Notes of other authorized denominations (including on
          exchange of Notes for Exchange Notes), the Registrar shall
          register the transfer or make the exchange as requested if its
          requirements for such transactions are met; provided that no 
                                                      --------
          exchanges of Notes for Exchange Notes shall occur until a
          Registration Statement shall have been declared effective by the
          Commission and that any Notes that are exchanged for Exchange
          Notes shall be cancelled by the Trustee.  To permit registrations
          of transfers and exchanges in accordance with the terms,
          conditions and restrictions hereof, the Company shall execute and
          the Trustee shall authenticate Notes at the Registrar's request. 
          No service charge shall be made to any Holder for any
          registration of transfer or exchange or redemption of the Notes,
          but the Company may require payment of a sum sufficient to cover
          any transfer tax or similar governmental charge payable in
          connection therewith (other than any such transfer taxes or other
          similar governmental charge payable upon transfers, exchanges or
          redemptions pursuant to Section 2.11, 3.08, 4.11, 4.12 or 9.04).

                    The Registrar shall not be required (i) to issue,
          register the transfer of or exchange any Note during a period
          beginning at the opening of business 15 days before the day of
          the mailing of a notice of redemption of Notes selected for
          redemption under Section 3.03 or Section 3.08 and ending at the
          close of business on the day of such mailing, or (ii) to register
          the transfer of or exchange any Note so selected for redemption
          in whole or in part, except the unredeemed portion of any Note
          being redeemed in part.

                    SECTION 2.07.  Book-Entry Provisions for Global Notes. 
                                   --------------------------------------
          (a)  Each U.S. Global Note and Offshore Global Note initially
          shall (i) be registered in the name of the Depository for such
          Global Notes or the nominee of such Depository, (ii) be delivered
          to the Trustee as custodian for such Depository and (iii) bear
          legends as set forth in Section 2.02.

                    Members of, or participants in, the Depository ("Agent
                                                                     -----
          Members") shall have no rights under this Indenture with respect
          -------
          to any Global Note held on their behalf by the Depository, or the
          Trustee as its custodian, or under any Global Note, and the
          Depository may be treated by the Company, the Trustee and any
          agent of the Company or the Trustee as the absolute owner of such
          Global Note for all purposes whatsoever.  Notwithstanding the
          foregoing, nothing herein shall prevent the Company, the Trustee
          or any agent of the Company or the Trustee, from giving effect to
          any written certification, proxy or other authorization furnished
          by the Depository or impair, as between the Depository and its
          Agent Members, the operation of customary practices governing the
          exercise of the rights of a beneficial owner of any Note.

                    (b)    Transfers of a Global Note shall be limited to
          transfers of such Global Note in whole, but not in part, to the
          Depository, its successors or their respective nominees. 
          Interests of beneficial owners in a Global Note may be
          transferred in accordance with the applicable rules and
          procedures of the Depository and the provisions of Section 2.08. 
          In addition, U.S. Certificated Notes or Offshore Certificated
          Notes shall be transferred to all beneficial owners in exchange
          for their beneficial interests in a U.S. Global Note or an
          Offshore Global Note, respectively, if (i) the Depository
          notifies the Company that it is unwilling or unable to continue
          as Depository for the U.S. Global Notes or the Offshore Global
          Notes, as the case may be, and a successor depositary is not
          appointed by the Company within 90 days of such notice or (ii) an
          Event of Default has occurred and is continuing and the Registrar
          has received a request to the foregoing effect from the
          Depository.

                    (c)    Any beneficial interest in one of the Global
          Notes that is transferred to a Person who takes delivery in the
          form of an interest in the other Global Note will, upon transfer,
          cease to be an interest in such Global Note and become an
          interest in the other Global Note and, accordingly, will
          thereafter be subject to all transfer restrictions, if any, and
          other procedures applicable to beneficial interests in such other
          Global Note for as long as it remains such an interest.

                    (d)    In connection with any transfer pursuant to
          paragraph (b) of this Section of a portion of the beneficial
          interests in a U.S. Global Note or Offshore Global Note to
          beneficial owners who are required to hold U.S. Certificated
          Notes, the Registrar shall reflect on its books and records the
          date and a decrease in the principal amount at maturity of such
          U.S. Global Note or Offshore Global Note in an amount equal to
          the principal amount at maturity of the beneficial interest in
          such U.S. Global Note or Offshore Global Note to be transferred,
          and the Company shall execute, and the Trustee shall authenticate
          and deliver, one or more U.S. Certificated Notes or Offshore
          Certificated Notes, as the case may be, of like tenor and amount.

                    (e)    In connection with the transfer of all the U.S.
          Global Notes or Offshore Global Notes to beneficial owners
          pursuant to paragraph (b) of this Section, the U.S. Global Notes
          or Offshore Global Notes, as the case may be, shall be deemed to
          be surrendered to the Trustee for cancellation, and the Company
          shall execute, and the Trustee shall authenticate and deliver, to
          each beneficial owner identified by the Depository in exchange
          for its beneficial interest in the U.S. Global Notes or Offshore
          Global Notes, as the case may be, an equal aggregate principal
          amount at maturity of U.S. Certificated Notes or Offshore
          Certificated Notes, as the case may be, of authorized
          denominations.

                    (f)    Any U.S. Certificated Note delivered in exchange
          for an interest in a U.S. Global Note pursuant to paragraph (b),
          (d) or (e) of this Section shall, except as otherwise provided by
          paragraphs (f)(i)(x) and (d) of Section 2.08 hereof, bear the
          legend regarding transfer restrictions applicable to the U.S.
          Certificated Note set forth in Section 2.02.

                    (g)    Any Offshore Certificated Note delivered in
          exchange for an interest in an Offshore Global Note pursuant to
          paragraph (b), (d) or (e) of this Section shall, except as
          otherwise provided by paragraphs (f)(i)(x) and (d) of Section
          2.08 hereof, bear the legend regarding transfer restrictions
          applicable to the Offshore Certificated Note set forth in
          Section 2.02 hereof.

                    (h)    The registered holder of a Global Note may grant
          proxies and otherwise authorize any Person, including Agent
          Members and Persons that may hold interests through Agent
          Members, to take any action which a Holder is entitled to take
          under this Indenture or the Notes.

                    (i)    QIBs that are beneficial owners of interests in
          a Global Note may receive Certificated Notes (which shall bear
          the Private Placement Legend if required by Section 2.02) in
          accordance with the procedures of the Depository.  In connection
          with the execution, authentication and delivery of such
          Certificated Notes, the Registrar shall reflect on its books and
          records a decrease in the principal amount of the relevant Global
          Note equal to the principal amount of such Certificated Notes and
          the Company shall execute and the Trustee shall authenticate and
          deliver one or more Certificated  Notes having an equal aggregate
          principal amount.

                    SECTION 2.08.  Special Transfer Provisions.  Unless and
                                   ---------------------------
          until a Note is exchanged for an Exchange Note in connection with
          an effective Registration Statement pursuant to the Registration
          Rights Agreement, the following provisions shall apply:

                    (a)    Transfers to QIBs.  The following provisions 
                           -----------------
               shall apply with respect to the registration of any proposed
               transfer of a U.S. Certificated Note or an interest in a
               U.S. Global Note to a QIB (excluding Non-U.S. Persons):

                           (i)     If the Note to be transferred consists
                    of (x) U.S. Certificated Notes, the Registrar shall    
                    register the transfer if such transfer is being made by
                    a proposed transferor who has checked the box provided
                    for on the form of Note stating, or has otherwise
                    advised the Company and the Registrar in writing, that
                    the sale has been made in compliance with the
                    provisions of Rule 144A to a transferee who has signed
                    the certification provided for on the form of Note
                    stating, or has otherwise advised the Company and the
                    Registrar in writing, that it is purchasing the Note
                    for its own account or an account with respect to which
                    it exercises sole investment discretion and that it and
                    any such account is a QIB within the meaning of
                    Rule 144A, and is aware that the sale to it is being
                    made in reliance on Rule 144A and acknowledges that it
                    has received such information regarding the Company as
                    it has requested pursuant to Rule 144A or has
                    determined not to request such information and that it
                    is aware that the transferor is relying upon its
                    foregoing representations in order to claim the
                    exemption from registration provided by Rule 144A or
                    (y) an interest in a U.S. Global Note, the transfer of
                    such interest may be effected only through the book
                    entry system maintained by the Depository.

                           (ii)    If the proposed transferee is an Agent
                    Member, and the Note to be transferred consists of U.S.
                    Certificated Notes, upon receipt by the Registrar of
                    the documents referred to in clause (i) and
                    instructions given in accordance with the Depository's
                    and the Registrar's procedures, the Registrar shall
                    reflect on its books and records the date and an
                    increase in the principal amount at maturity of such
                    U.S. Global Note in an amount equal to the principal
                    amount at maturity of the U.S. Certificated Notes to be
                    transferred, and the Trustee shall cancel the
                    Certificated Note so transferred.

                    (b)    Transfers of Interests in Offshore Global Notes 
                           -----------------------------------------------
               or Offshore Certificated Notes to U.S. Persons.  The 
               ----------------------------------------------
               following provisions shall apply with respect to any
               transfer of interests in Offshore Global Notes or Offshore
               Certificated Notes to U.S. Persons:

                           (i)     prior to the removal of the Private
                    Placement Legend from Offshore Global Notes or Offshore
                    Certificated Notes pursuant to Section 2.02, the
                    Registrar shall refuse to register such transfer; and

                           (ii)    after such removal, the Registrar shall
                    register the transfer of any such Note without
                    requiring any additional certification.


                    (c)    Transfers to Non-U.S. Persons at Any Time.  The 
                           -----------------------------------------
               following provisions shall apply with respect to any
               transfer of a Note to a Non-U.S. Person:

                           (i)     The Registrar shall register any
                    proposed transfer to any Non-U.S. Person if the Note to
                    be transferred is a U.S. Certificated Note or an
                    interest in a U.S. Global Note only upon receipt of a
                    certificate substantially in the form of Exhibit C from
                    the proposed transferor.

                           (ii)    (A) If the proposed transferor is an
                    Agent Member holding a beneficial interest in a U.S.
                    Global Note, upon receipt by the Registrar of (x) the
                    documents required by paragraph (i) and
                    (y) instructions in accordance with the Depository's
                    and the Registrar's procedures, the Registrar shall
                    reflect on its books and records the date and a
                    decrease in the principal amount at maturity of such
                    U.S. Global Note in an amount equal to the principal
                    amount at maturity of the beneficial interest in the
                    U.S. Global Note to be transferred, and (B) if the
                    proposed transferee is an Agent Member, upon receipt by
                    the Registrar of instructions given in accordance with
                    the Depository's and the Registrar's procedures, the
                    Registrar shall reflect on its books and records the
                    date and an increase in the principal amount at
                    maturity of such Offshore Global Note in an amount
                    equal to the principal amount at maturity of the U.S.
                    Certificated Notes or the U.S. Global Notes, as the
                    case may be, to be transferred, and the Trustee shall
                    cancel the Certificated Note, if any, so transferred or
                    decrease the amount of the U.S. Global Notes.

                    (d)    Private Placement Legend.  Upon the registration
                           ------------------------
               of transfer, exchange or replacement of Notes not bearing
               the Private Placement Legend, the Registrar shall deliver
               Notes that do not bear the Private Placement Legend.  Upon
               the registration of transfer, exchange or replacement of
               Notes bearing the Private Placement Legend, the Registrar
               shall deliver only Notes that bear the Private Placement
               Legend unless either (i) the Private Placement Legend is no
               longer required by Section 2.02 or (ii) there is delivered
               to the Registrar an Opinion of Counsel reasonably
               satisfactory to the Company and the Trustee to the effect
               that neither such legend nor the related restrictions on
               transfer are required in order to maintain compliance with
               the provisions of the Securities Act.

                    (e)    General.  By its acceptance of any Note bearing 
                           -------
               the Private Placement Legend, each Holder of such a Note
               acknowledges the restrictions on transfer of such Note set
               forth in this Indenture and in the Private Placement Legend
               and agrees that it will transfer such Note only as provided
               in this Indenture.  The Registrar shall not register a
               transfer of any Note unless such transfer complies with the
               restrictions on transfer of such Note set forth in this
               Indenture.  In connection with any transfer of Notes to an
               Institutional Accredited Investor, each Holder agrees by its
               acceptance of the Notes to furnish the Registrar or the
               Company such certifications, legal opinions or other
               information as either of them may reasonably require to
               confirm that such transfer is being made pursuant to an
               exemption from, or a transaction not subject to, the
               registration requirements of the Securities Act; provided 
                                                                --------
               that the Registrar shall not be required to determine (but
               may rely on a determination made by the Company with respect
               to) the sufficiency of any such certifications, legal
               opinions or other information.

                    (f)    Transfers to Non-QIB Institutional Accredited 
                           ---------------------------------------------
               Investors.  The following provisions shall apply with 
               ---------
               respect to the registration of any proposed transfer of a
               Note to any Institutional Accredited Investor which is not a
               QIB (excluding Non-U.S. Persons):

                           (i)     The Registrar shall register the
                    transfer of any Note, whether or not such Note bears
                    the Private Placement Legend, if (x) the requested
                    transfer is after the time period referred to in Rule
                    144(k) under the Securities Act as in effect with
                    respect to such transfer or (y) the proposed transferee
                    has delivered to the Registrar (A) a certificate
                    substantially in the form of Exhibit D hereto and
                    (B) if the aggregate Accreted Value of Notes being
                    transferred is less than $250,000 at the time of such
                    transfer, an Opinion of Counsel acceptable to the
                    Company that such transfer is in compliance with the
                    Securities Act.

                           (ii)    If the proposed transferor is an Agent
                    Member holding a beneficial interest in a U.S. Global
                    Note, upon receipt by the Registrar and the Company of
                    (x) the documents, if any, required by paragraph (i)
                    and (y) instructions given in accordance with the
                    Depository's and the Registrar's procedures, the
                    Registrar shall reflect on its books and records the
                    date and a decrease in the principal amount at maturity
                    of such U.S. Global Note in an amount equal to the
                    principal amount at maturity of the beneficial interest
                    in the U.S. Global Note to be transferred, and the
                    Company shall execute, and the Trustee shall
                    authenticate and deliver, one or more U.S. Certificated
                    Notes of like tenor and amount.

                    The Registrar shall retain copies of all letters,
          notices and other written communications received pursuant to
          Section 2.07 or this Section 2.08.  The Company shall have the
          right to inspect and make copies of all such letters, notices or
          other written communications at any reasonable time upon the
          giving of reasonable written notice to the Registrar.

                    SECTION 2.09.  Replacement Notes.  If a mutilated Note
                                   -----------------
          is surrendered to the Trustee or if the Holder claims that the
          Note has been lost, destroyed or wrongfully taken, the Company
          shall issue and the Trustee shall authenticate a replacement Note
          of like tenor and principal amount and bearing a number not
          contemporaneously outstanding; provided that the requirements of
                                         --------
          the second paragraph of Section 2.10 are met.  If required by the
          Trustee or the Company, an indemnity bond must be furnished that
          is sufficient in the judgment of both the Trustee and the Company
          to protect the Company, the Trustee or any Agent from any loss
          that any of them may suffer if a Note is replaced.  The Company
          may charge such Holder for its expenses and the expenses of the
          Trustee in replacing a Note.  In case any such mutilated, lost,
          destroyed or wrongfully taken Note has become or is about to
          become due and payable, the Company in its discretion may pay
          such Note instead of issuing a new Note in replacement thereof.

                    Every replacement Note is an additional obligation of
          the Company and shall be entitled to the benefits of this
          Indenture.

                    SECTION 2.10.  Outstanding Notes.  Notes outstanding at
                                   -----------------
          any time are all Notes that have been authenticated by the
          Trustee except for those cancelled by it, those delivered to it
          for cancellation and those described in this Section 2.10 as not
          outstanding.

                    If a Note is replaced pursuant to Section 2.09, it
          ceases to be outstanding unless and until the Trustee and the
          Company receive proof reasonably satisfactory to them that the
          replaced Note is held by a bona fide purchaser.

                    If the Paying Agent (other than the Company or an
          Affiliate of the Company) holds on the maturity date or a
          redemption date money sufficient to pay all principal, premium,
          if any, and interest payable on that date with respect to the
          Notes (or portions thereof) to be redeemed or payable on that
          date, then on and after that date such Notes cease to be
          outstanding and interest on them shall cease to accrue or the
          principal of such Notes shall cease to accrete, the case may be.

                    A Note does not cease to be outstanding because the
          Company or one of its Affiliates holds such Note; provided, 
                                                            --------
          however, that, in determining whether the Holders of the 
          -------
          requisite principal amount at maturity of the outstanding Notes
          have given any request, demand, authorization, direction, notice,
          consent or waiver hereunder, Notes owned by the Company or any
          other obligor upon the Notes or any Affiliate of the Company or
          of such other obligor shall be disregarded and deemed not to be
          outstanding, except that, in determining whether the Trustee
          shall be protected in relying upon any such request, demand,
          authorization, direction, notice, consent or waiver, only Notes
          which the Trustee knows to be so owned shall be so disregarded. 
          Notes so owned which have been pledged in good faith may be
          regarded as outstanding if the pledgee establishes to the
          satisfaction of the Trustee the pledgee's right so to act with
          respect to such Notes and that the pledgee is not the Company or
          any other obligor upon the Notes or any Affiliate of the Company
          or of such other obligor.

                    SECTION 2.11.  Temporary Notes.  Until definitive Notes
                                   ---------------
          are ready for delivery, the Company may prepare and the Trustee
          shall authenticate temporary Notes.  Temporary Notes shall be
          substantially in the form of definitive Notes but may have
          insertions, substitutions, omissions and other variations
          determined to be appropriate by the Officers executing the
          temporary Notes, as evidenced by their execution of such
          temporary Notes.  If temporary Notes are issued, the Company will
          cause definitive Notes to be prepared without unreasonable delay. 
          After the preparation of definitive Notes, the temporary Notes
          shall be exchangeable for definitive Notes upon surrender of the
          temporary Notes at the office or agency of the Company designated
          for such purpose pursuant to Section 4.02, without charge to the
          Holder.  Upon surrender for cancellation of any one or more
          temporary Notes the Company shall execute and the Trustee shall
          authenticate and deliver in exchange therefor a like principal
          amount at maturity of definitive Notes of authorized
          denominations.  Until so exchanged, the temporary Notes shall be
          entitled to the same benefits under this Indenture as definitive
          Notes.

                    SECTION 2.12.  Cancellation.  The Company at any time 
                                   ------------
          may deliver to the Trustee for cancellation any Notes previously
          authenticated and delivered hereunder which the Company may have
          acquired in any manner whatsoever, and may deliver to the Trustee
          for cancellation any Notes previously authenticated hereunder
          which the Company has not issued and sold.  The Registrar and the
          Paying Agent shall forward to the Trustee any Notes surrendered
          to them for registration of transfer, exchange, purchase or
          payment.  The Trustee shall cancel all Notes surrendered for
          registration of transfer, exchange, purchase, payment or
          cancellation and shall dispose of them in accordance with its
          normal procedure.  The Company shall not issue new Notes to
          replace Notes it has paid in full or delivered to the Trustee for
          cancellation.

                    SECTION 2.13.  CUSIP Numbers.  The Company in issuing 
                                   -------------
          the Notes may use "CUSIP" and "CINS" numbers (if then generally
          in use), and the Trustee shall use CUSIP numbers or CINS numbers,
          as the case may be, in notices of redemption or exchange as a
          convenience to Holders; provided that any such notice shall state
                                  --------
          that no representation is made as to the correctness of such
          numbers either as printed on the Notes or as contained in any
          notice of redemption or exchange and that reliance may be placed
          only on the other identification numbers printed on the Notes.

                    SECTION 2.14.  Defaulted Interest.  If the Company 
                                   ------------------
          defaults in a payment of interest on the Notes, it shall pay, or
          shall deposit with the Paying Agent money in immediately
          available funds sufficient to pay, the defaulted interest, plus
          (to the extent lawful)  interest on the defaulted interest, to
          the Persons who are Holders on a subsequent special record date. 
          A special record date, as used in this Section 2.14 with respect
          to the payment of any defaulted interest, shall mean the 15th day
          next preceding the date fixed by the Company for the payment of
          defaulted interest, whether or not such day is a Business Day. 
          At least 15 days before the subsequent special record date, the
          Company shall mail to each Holder and to the Trustee a notice
          that states the subsequent special record date, the payment date
          and the amount of defaulted interest to be paid.

                    SECTION 2.15.  Issuance of Additional Notes.  The 
                                   ----------------------------
          Company may, subject to Article Four of this Indenture, issue
          additional Notes under this Indenture.  The Notes issued on the
          Closing Date and any additional Notes subsequently issued shall
          be treated as a single class for all purposes under this
          Indenture.


                                    ARTICLE THREE
                                      REDEMPTION

                    SECTION 3.01.  Right of Redemption.  (a)  The Notes may
                                   -------------------
          be redeemable, at the Company's option, in whole or in part, at
          any time or from time to time, on or after February 15, 2003 and
          prior to maturity, upon not less than 30 nor more than 60 days'
          prior notice mailed by first class mail to each Holder's last
          address as it appears in the Note Register, at the Redemption
          Prices (expressed in percentages of principal amount at
          maturity), plus accrued and unpaid interest, if any, to the
          Redemption Date (subject to the right of Holders of record on the
          relevant Regular Record Date that is on or prior to the
          Redemption Date to receive interest due on an Interest Payment
          Date), if redeemed during the 12-month period commencing February
          15, of the years set forth below:

                          YEAR                    REDEMPTION PRICE
                          ----                    ----------------
                          2003                      105.0000%
                          2004                      103.3333 
                          2005                      101.6667
                          2006 and thereafter       100.0000 

                    (b)  In addition, at any time or from time to time, on
          or prior to February 15, 2001, the Company may, at its option,
          redeem Notes having an aggregate principal amount at maturity of
          up to 35% of the aggregate principal amount at maturity of the
          Notes with the proceeds of one or more public or private Equity
          Offerings, at a Redemption Price equal to 110.0% of the Accreted
          Value thereof on the Redemption Date; provided that at least 65%
                                                --------
          of the aggregate principal amount of Notes initially issued
          remains outstanding after each such redemption.

                    SECTION 3.02.  Notices to Trustee.  If the Company 
                                   ------------------
          elects to redeem Notes pursuant to Section 3.01, it shall notify
          the Trustee in writing of the Redemption Date and the principal
          amount at maturity of Notes to be redeemed.

                    The Company shall give each notice provided for in this
          Section 3.02 in an Officers' Certificate at least 60 days before
          the Redemption Date (unless a shorter period shall be
          satisfactory to the Trustee).

                    SECTION 3.03.  Selection of Notes to Be Redeemed.  If 
                                   ---------------------------------
          less than all of the Notes are to be redeemed at any time, the
          Trustee shall select the Notes to be redeemed in compliance with
          the requirements of the principal national securities exchange,
          if any, on which the Notes are listed or if the Notes are not
          listed on a national securities exchange, on a pro rata basis or
          by lot or by such other method as the Trustee in its sole
          discretion shall deem to be fair and appropriate; provided that
          no Notes of $1,000 in principal amount at maturity or less shall
          be redeemed in part.

                    The Trustee shall make the selection from the Notes
          outstanding and not previously called for redemption.  Notes in
          denominations of $1,000 in principal amount at maturity may only
          be redeemed in whole.  The Trustee may select for redemption
          portions (equal to $1,000 in principal amount at maturity or any
          integral multiple thereof) of Notes that have denominations
          larger than $1,000 in principal amount at maturity.  Provisions
          of this Indenture that apply to Notes called for redemption also
          apply to portions of Notes called for redemption.  The Trustee
          shall notify the Company and the Registrar promptly in writing of
          the Notes or portions of Notes to be called for redemption.

                    SECTION 3.04.  Notice of Redemption.  With respect to 
                                   --------------------
          any redemption of Notes pursuant to Section 3.01, at least 30
          days but not more than 60 days before a Redemption Date, the
          Company shall mail a notice of redemption by first class mail to
          each Holder whose Notes are to be redeemed.

                    The notice shall identify the Notes to be redeemed and
          shall state:

                    (i)   the Redemption Date;

                    (ii)  the Redemption Price;

                    (iii) the name and address of the Paying Agent;

                    (iv)  that Notes called for redemption must be
               surrendered to the Paying Agent in order to collect the
               Redemption Price;

                    (v)  that, unless the Company defaults in making the
               redemption payment, interest on Notes (or portions thereof)
               called for redemption ceases to accrue or Notes called for
               redemption cease to accrete in value, as the case may be, on
               and after the Redemption Date and the only remaining right
               of the Holders is to receive payment of the Redemption Price
               plus accrued interest to the Redemption Date upon surrender
               of the Notes to the Paying Agent;

                    (vi)  that, if any Note is being redeemed in part, the
               portion of the principal amount at maturity (equal to $1,000
               in principal amount at maturity or any integral multiple
               thereof) of such Note to be redeemed and that, on and after
               the Redemption Date, upon surrender of such Note, a new Note
               or Notes in principal amount at maturity equal to the
               unredeemed portion thereof will be reissued; and

                    (vii)  that, if any Note contains a CUSIP number as
               provided in Section 2.13, no representation is being made as
               to the correctness of the CUSIP number either as printed on
               the Notes or as contained in the notice of redemption.

                    At the Company's request (which request may be revoked
          by the Company at any time prior to the time at which the Trustee
          shall have given such notice to the Holders), made in writing to
          the Trustee at least 60 days (or such shorter period as shall be
          satisfactory to the Trustee) before a Redemption Date, the
          Trustee shall give the notice of redemption in the name and at
          the expense of the Company.  If, however, the Company gives such
          notice to the Holders, the Company shall concurrently deliver to
          the Trustee an Officers' Certificate stating that such notice has
          been given.

                    SECTION 3.05.  Effect of Notice of Redemption.  Once 
                                   ------------------------------
          notice of redemption is mailed, Notes called for redemption
          become due and payable on the Redemption Date and at the
          Redemption Price.  Upon surrender of any Notes to the Paying
          Agent, such Notes shall be paid at the Redemption Price, plus
          accrued interest, if any, to the Redemption Date.

                    Notice of redemption shall be deemed to be given when
          mailed, whether or not the Holder receives the notice.  In any
          event, failure to give such notice, or any defect therein, shall
          not affect the validity of the proceedings for the redemption of
          Notes held by Holders to whom such notice was properly given.

                    SECTION 3.06.  Deposit of Redemption Price.  On or 
                                   ---------------------------
          prior to any Redemption Date, the Company shall deposit with the
          Paying Agent (or, if the Company is acting as its own Paying
          Agent, shall segregate and hold in trust as provided in Section
          2.05) money sufficient to pay the Redemption Price of and accrued
          interest on all Notes to be redeemed on that date other than
          Notes or portions thereof called for redemption on that date that
          have been delivered by the Company to the Trustee for
          cancellation.

                    SECTION 3.07.  Payment of Notes Called for Redemption. 
                                   --------------------------------------
          If notice of redemption has been given in the manner provided
          above, the Notes or portion of Notes specified in such notice to
          be redeemed shall become due and payable on the Redemption Date
          at the Redemption Price stated therein, together with accrued
          interest to such Redemption Date, and on and after such date
          (unless the Company shall default in the payment of such Notes at
          the Redemption Price and accrued interest to the Redemption Date,
          in which case the principal, until paid, shall bear interest from
          the Redemption Date at the rate prescribed in the Notes), such
          Notes shall cease to accrue interest or accrete in value, as the
          case may be.  Upon surrender of any Note for redemption in
          accordance with a notice of redemption, such Note shall be paid
          and redeemed by the Company at the Redemption Price, together
          with accrued interest, if any, to the Redemption Date; provided 
                                                                 --------
          that installments of interest whose Stated Maturity is on or
          prior to the Redemption Date shall be payable to the Holders
          registered as such at the close of business on the relevant
          Regular Record Date.

                    SECTION 3.08.  Notes Redeemed in Part.  Upon surrender
                                   ----------------------  
          of any Note that is redeemed in part, the Company shall execute
          and the Trustee shall authenticate and deliver to the Holder a
          new Note equal in principal amount at maturity to the unredeemed
          portion of such surrendered Note.


                                     ARTICLE FOUR
                                      COVENANTS

                    SECTION 4.01.  Payment of Notes.  The Company shall pay
                                   ----------------
          the principal of, premium, if any, and interest on the Notes on
          the dates and in the manner provided in the Notes and this
          Indenture.  An installment of principal, premium, if any, or
          interest shall be considered paid on the date due if the Trustee
          or Paying Agent (other than the Company, a Subsidiary of the
          Company, or any Affiliate of any of them) holds on that date
          money designated for and sufficient to pay the installment.  If
          the Company or any Subsidiary of the Company or any Affiliate of
          any of them, acts as Paying Agent, an installment of principal,
          premium, if any, or interest shall be considered paid on the due
          date if the entity acting as Paying Agent complies with the last
          sentence of Section 2.05.  As provided in Section 6.09, upon any
          bankruptcy or reorganization procedure relative to the Company,
          the Trustee shall serve as the Paying Agent and conversion agent,
          if any, for the Notes.

                    The Company shall pay interest on overdue principal,
          premium, if any, and interest on overdue installments of
          interest, to the extent lawful, at the rate per annum specified
          in the Notes.

                    SECTION 4.02.  Maintenance of Office or Agency.  The 
                                   -------------------------------
          Company will maintain in the Borough of Manhattan, the City of
          New York, an office or agency where Notes may be surrendered for
          registration of transfer or exchange or for presentation for
          payment and where notices and demands to or upon the Company in
          respect of the Notes and this Indenture may be served.  The
          Company will give prompt written notice to the Trustee of the
          location, and any change in the location, of such office or
          agency.  If at any time the Company shall fail to maintain any
          such required office or agency or shall fail to furnish the
          Trustee with the address thereof, such presentations, surrenders,
          notices and demands may be made or served at the address of the
          Trustee set forth in Section 10.02 hereof.

                    The Company may also from time to time designate one or
          more other offices or agencies where the Notes may be presented
          or surrendered for any or all such purposes and may from time to
          time rescind such designations; provided that no such designation
                                          --------
          or rescission shall in any manner relieve the Company of its
          obligation to maintain an office or agency in the Borough of
          Manhattan, the City of New York for such purposes.  The Company
          will give prompt written notice to the Trustee of any such
          designation or rescission and of any change in the location of
          any such other office or agency.

                    The Company hereby initially designates the Corporate
          Trust Office of the Trustee, located in the Borough of Manhattan,
          the City of New York, as such office of the Company in accordance
          with Section 2.04.

                    SECTION 4.03.  Limitation on Indebtedness.  (a)  The 
                                   --------------------------
          Company will not, and will not permit any of its Restricted
          Subsidiaries to, Incur any Indebtedness (other than the Notes and
          Indebtedness existing on the Closing Date); provided that the 
                                                      --------
          Company may Incur Indebtedness if, after giving effect to the
          Incurrence of such Indebtedness and the receipt and application
          of the proceeds therefrom, the Consolidated Leverage Ratio would
          be greater than zero and less than 6:1.

                    Notwithstanding the foregoing, the Company and any
          Restricted Subsidiary (except as specified below) may Incur each
          and all of the following:

                    (i)    Indebtedness of the Company or its Restricted
               Subsidiaries outstanding at any time in an aggregate
               principal amount not to exceed (A) $200 million of
               unsubordinated Indebtedness (including any Indebtedness
               under one or more revolving credit or working capital
               facilities) and (B) $200 million of subordinated
               Indebtedness (and any Guarantees thereof by the Company or
               its Restricted Subsidiaries), less any amount of such
               Indebtedness permanently repaid as provided under Section
               4.11 hereof;

                    (ii)   the Incurrence by the Company of Indebtedness
               represented by the Notes;

                    (iii)  Indebtedness in existence on the Closing Date;

                    (iv)   Indebtedness of the Company to a Restricted
               Subsidiary and Indebtedness of a Restricted Subsidiary to
               the Company or another Restricted Subsidiary; provided that
                                                             --------
               such Indebtedness is made pursuant to an intercompany note
               (which, in the case of Indebtedness owed to the Company,
               shall be unsubordinated) and any event which results in any
               such Restricted Subsidiary ceasing to be a Restricted
               Subsidiary or any subsequent transfer of such Indebtedness
               (other than to the Company or another Restricted Subsidiary)
               shall be deemed, in each case, to constitute an Incurrence
               of such Indebtedness not permitted by this clause (iv);

                    (v)    Indebtedness issued in exchange for, or the net
               proceeds of which are used to refinance or refund, then
               outstanding Indebtedness (other than Indebtedness Incurred
               under clause (i), (iv), (vi) or (viii) of this paragraph)
               and any refinancings thereof in an amount not to exceed the
               amount so refinanced or refunded (plus premiums, accrued
               interest, fees and expenses); provided that Indebtedness the
                                             --------
               proceeds of which are used to refinance or refund
               Indebtedness that is subordinated in right of payment to the
               Notes shall only be permitted under this clause (v) if (A)
               such new Indebtedness, by its terms or by the terms of any
               agreement or instrument pursuant to which such new
               Indebtedness is issued or remains outstanding, is expressly
               made subordinate in right of payment to the Notes at least
               to the extent that the Indebtedness to be refinanced is
               subordinated to the Notes and (B) such new Indebtedness,
               determined as of the date of Incurrence of such new
               Indebtedness, does not mature prior to the Stated Maturity
               of the Indebtedness to be refinanced or refunded, and the
               Average Life of such new Indebtedness is at least equal to
               the remaining Average Life of the Indebtedness to be
               refinanced or refunded; and provided further that in no 
                                           -------- -------
               event may Indebtedness of the Company be refinanced by means
               of any Indebtedness of any Restricted Subsidiary pursuant to
               this clause (v);

                    (vi)   Indebtedness (A) in respect of performance,
               surety or appeal bonds provided in the ordinary course of
               business, (B) under Currency Agreements and Interest Rate
               Agreements; provided that such agreements (a) are designed
                           --------                                   
               solely to protect the Company or its Restricted Subsidiaries
               against fluctuations in foreign currency exchange rates or
               interest rates and (b) do not increase the Indebtedness of
               the obligor outstanding at any time (except to the extent
               Incurred under another clause hereof) other than as a result
               of fluctuations in foreign currency exchange rates or
               interest rates or by reason of fees, indemnities and
               compensation payable thereunder; and (C) arising from
               agreements providing for indemnification, adjustment of
               purchase price or similar obligations, or from Guarantees or
               letters of credit, surety bonds or performance bonds
               securing any obligations of the Company or any of its
               Restricted Subsidiaries pursuant to such agreements, in each
               case Incurred in connection with the disposition of any
               business, assets or Restricted Subsidiary (other than
               Guarantees of Indebtedness Incurred by any Person acquiring
               all or any portion of such business, assets or Restricted
               Subsidiary for the purpose of financing such acquisition),
               in a principal amount not to exceed the gross proceeds
               actually received by the Company or any Restricted
               Subsidiary in connection with such disposition;

                    (vii)  Indebtedness of the Company, to the extent the
               net proceeds thereof are promptly (A) used to purchase Notes
               tendered in an Offer to Purchase made as a result of a
               Change in Control or (B) deposited to defease the Notes as
               described below under Article Eight hereof;

                    (viii) Guarantees of the Notes and Guarantees of
               Indebtedness of the Company by any Restricted Subsidiary
               provided the Guarantee of such Indebtedness is permitted by
               and made in accordance with Section 4.07 hereof and any
               Guarantee by the Company of Indebtedness or other
               obligations of any of its Restricted Subsidiaries so long as
               the incurrence of such Indebtedness Incurred by such
               Restricted Subsidiary is permitted under the terms of this
               Section 4.03;

                    (ix)   Indebtedness Incurred to finance the cost
               (including, without limitation, the cost of design,
               development, acquisition, construction, installation,
               improvement, transportation or integration) to acquire
               equipment, inventory, assets, services and related costs in
               connection with the Internet Service Business or the
               Telecommunications Business (including, without limitation,
               acquisitions by way of acquisitions of real property,
               leasehold improvements, licenses, rights-of-use, Capitalized
               Leases, installment sales and acquisitions of the Capital
               Stock of a Person that becomes a Restricted Subsidiary to
               the extent of the fair market value of the equipment,
               inventory or network assets so acquired) by the Company or a
               Restricted Subsidiary after the Closing Date;

                    (x)    Indebtedness of the Company not to exceed, at
               any one time outstanding, the sum (without duplication) of
               (A) two times the Net Cash Proceeds received by the Company
               from the sale of ICG Common Stock contributed by ICG to the
               Company after the Closing Date to a Person that is not a
               Subsidiary of the Company (1.6 times the closing price, last
               sale price or similar price of such ICG Common Stock at the
               time received by the Company to the extent such ICG Common
               Stock has not been sold) plus (B) two times cash or cash
               equivalents contributed by ICG or its Subsidiaries (other
               than the Company and its Subsidiaries) to the Company after
               the Closing Date plus (C) 1.6 times the fair market value of
               other assets (including, without limitation, Capital Stock)
               acquired by the Company or its Restricted Subsidiaries to
               the extent that the consideration therefor consists of ICG
               Common Stock plus (D) 1.6 times the fair market value of
               other assets contributed by ICG or its Subsidiaries (other
               than the Company and its Subsidiaries) to the Company after
               the Closing Date plus (E) two times the Net Cash Proceeds
               received by the Company after the Closing Date from the
               issuance and sale of its Capital Stock (other than
               Disqualified Stock) to a Person that is not a Subsidiary of
               the Company plus (F) 1.6 times the fair market value of
               property (other than cash and cash equivalents) received by
               the Company after the Closing Date from the sale of its
               Capital Stock (other than Disqualified Stock) to a Person
               that is not a Subsidiary of the Company, in each case, to
               the extent such Net Cash Proceeds, ICG Common Stock, cash or
               cash equivalents or such other assets or property have not
               been used pursuant to clause (C)(2) of the first paragraph
               or clause (iii) or (iv), as the case may be, of the second
               paragraph of Section 4.04; provided that such Indebtedness 
                                          --------
               does not mature prior to the Stated Maturity of the Notes
               and has a then current Average Life at least as long as the
               Notes;

                    (xi)   Indebtedness Incurred by the Company or any of
               its Restricted Subsidiaries constituting reimbursement
               obligations with respect to letters of credit in the
               ordinary course of business, including, without limitation,
               letters of credit in respect of workers' compensation claims
               or self insurance, or other Indebtedness with respect to
               reimbursement type obligations regarding workers'
               compensation claims; provided, however, that upon the 
                                    --------  -------
               drawing of such letters of credit or the Incurrence of such
               Indebtedness, such obligations are reimbursed within 30 days
               following such drawing or Incurrence;

                    (xii)  Acquired Indebtedness or Indebtedness of Persons
               that are acquired by the Company or any of its Restricted
               Subsidiaries or merged into a Restricted Subsidiary in
               accordance with the terms of this Indenture; provided that 
                                                            --------
               such Indebtedness is not incurred in contemplation of such
               acquisition or merger; and

                    (xiii) Strategic Subordinated Indebtedness.

                    (b)    Notwithstanding any other provision of this
          Section 4.03, the maximum amount of Indebtedness that the Company
          or a Restricted Subsidiary may Incur pursuant to this Section
          4.03 shall not be deemed to be exceeded, with respect to any
          outstanding Indebtedness due solely to the result of fluctuations
          in the exchange rates of currencies. Accretion on an instrument
          issued at a discount will not be deemed to constitute an
          Incurrence of Indebtedness.

                    (c)    For purposes of determining any particular
          amount of Indebtedness under this Section 4.03, (1) Guarantees,
          Liens or obligations with respect to letters of credit supporting
          Indebtedness otherwise included in the determination of such
          particular amount shall not be included and (2) any Liens granted
          pursuant to the equal and ratable provisions referred to in
          Section 4.09 hereof shall not be treated as Indebtedness. For
          purposes of determining compliance with this Section 4.03, in the
          event that an item of Indebtedness meets the criteria of more
          than one of the types of Indebtedness described in clauses (i)
          through (xiii) of Section 4.03(a), the Company, in its sole
          discretion, shall classify such item of Indebtedness and only be
          required to include the amount and type of such Indebtedness in
          one of such clauses.

                    SECTION 4.04.  Limitation on Restricted Payments.   The
                                   ---------------------------------
          Company will not, and will not permit any Restricted Subsidiary
          to, directly or indirectly, (i) declare or pay any dividend or
          make any distribution on or with respect to its Capital Stock
          (other than (x) dividends or distributions payable solely in
          shares of its Capital Stock (other than Disqualified Stock) or in
          options, warrants or other rights to acquire shares of such
          Capital Stock and (y) pro rata dividends or distributions on
          Common Stock of Restricted Subsidiaries held by minority
          stockholders) held by Persons other than the Company or any of
          its Restricted Subsidiaries, (ii) purchase, redeem, retire or
          otherwise acquire for value any shares of Capital Stock of (A)
          the Company or an Unrestricted Subsidiary (including options,
          warrants or other rights to acquire such shares of Capital Stock)
          held by any Person or (B) a Restricted Subsidiary (including
          options, warrants or other rights to acquire such shares of
          Capital Stock) held by any Affiliate of the Company (other than a
          Wholly Owned Restricted Subsidiary), (iii) make any voluntary or
          optional principal payment, or voluntary or optional redemption,
          repurchase, defeasance, or other acquisition or retirement for
          value, of Indebtedness of the Company that is subordinated in
          right of payment to the Notes (other than the purchase,
          redemption, repurchase or other acquisition of such subordinated
          Indebtedness purchased in anticipation of satisfying a sinking
          fund obligation, principal installment or final maturity, in each
          case due within six months of the date of acquisition) or
          (iv) make any Investment, other than a Permitted Investment, in
          any Person (such payments or any other actions described in
          clauses (i) through (iv) above being collectively "Restricted 
                                                             ----------
          Payments") if, at the time of, and after giving effect to, the 
          --------
          proposed Restricted Payment:  (A) a Default or Event of Default
          shall have occurred and be continuing, (B) except with respect to
          making any Investments, the Company could not Incur at least
          $1.00 of Indebtedness under the first paragraph of Section 4.03
          or (C) the aggregate amount of all Restricted Payments (the
          amount, if other than in cash, to be determined in good faith by
          the Board of Directors, whose determination shall be conclusive
          and evidenced by a Board Resolution) made after the Closing Date
          shall exceed the sum of (1) 50% of the aggregate amount of the
          Adjusted Consolidated Net Income (or, if the Adjusted
          Consolidated Net Income is a loss, minus 100% of the amount of
          such loss) (determined by excluding income resulting from
          transfers of assets by the Company or a Restricted Subsidiary to
          an Unrestricted Subsidiary) accrued on a cumulative basis during
          the period (taken as one accounting period) beginning on the
          first day of the fiscal quarter immediately following the Closing
          Date and ending on the last day of the last fiscal quarter
          preceding the Transaction Date for which reports have been filed
          with the Commission or provided to the Trustee pursuant to
          Section 4.18 hereof plus (2) 100% of (I) the aggregate Net Cash
          Proceeds or fair market value of any Capital Stock and the amount
          of cash from any capital contributions to the Company after the
          Closing Date from Persons other than Subsidiaries of the Company
          (including contributions of ICG Common Stock, cash and cash
          equivalents and other assets to the Company by ICG) plus (II) the
          aggregate Net Cash Proceeds received by the Company after the
          Closing Date from an issuance and sale of its Capital Stock
          (other than Disqualified Stock) to a Person who is not a
          Subsidiary of the Company, including, without limitation, an
          issuance or sale permitted by this Indenture for cash subsequent
          to the Closing Date upon the conversion of such Indebtedness into
          Capital Stock (other than Disqualified Stock) of the Company, or
          from the issuance to a Person who is not a Subsidiary of the
          Company of any options, warrants or other rights to acquire
          Capital Stock of the Company (in each case, exclusive of any
          Disqualified Stock or any options, warrants or other rights that
          are redeemable at the option of the holder, or are required to be
          redeemed, prior to the Stated Maturity of the Notes), to the
          extent such Net Cash Proceeds, Capital Stock, marketable
          securities or amount have not been previously applied pursuant to
          clauses (iii) or (iv), as the case may be, of the second
          paragraph of this Section 4.04 or used to support the Incurrence
          of Indebtedness pursuant to clause (x) of the second paragraph
          under Section 4.03 plus (3) amounts received from Investments
          (other than Permitted Investments) in any Person resulting from
          payments of interest on Indebtedness, dividends, repayments of
          loans or advances, or other transfers of assets, in each case to
          the Company or any Restricted Subsidiary or from the Net Cash
          Proceeds from the sale of any such Investment (except, in each
          case, to the extent any such payment or proceeds are included in
          the calculation of Adjusted Consolidated Net Income), or from
          redesignations of Unrestricted Subsidiaries as Restricted
          Subsidiaries (valued in each case as provided in the definition
          of "Investments"), not to exceed, in each case, the amount of
          Investments previously made by the Company or any Restricted
          Subsidiary in such Person or Unrestricted Subsidiary.

                    The foregoing provision shall not be violated by reason
          of:

                    (i)    the payment of any dividend within 60 days after
               the date of declaration thereof if, at said date of
               declaration, such payment would comply with the foregoing
               paragraph;

                    (ii)   the redemption, repurchase, defeasance or other
               acquisition or retirement for value of Indebtedness that is
               subordinated in right of payment to the Notes including
               premium, if any, and accrued and unpaid interest, with the
               proceeds of, or in exchange for, Indebtedness Incurred under
               clause (v) of the second paragraph of part (a) of Section
               4.03;

                    (iii)  the making of any principal payment or the
               repurchase, redemption, retirement, defeasance or other
               acquisition for value of Indebtedness of the Company which
               is subordinated in right of payment to the Notes (A) with
               cash or cash equivalents contributed by ICG to the Company
               after the Closing Date or (B) with, or out of the Net Cash
               Proceeds of, ICG Common Stock or other assets (other than
               cash or cash equivalents) contributed by ICG to the Company
               after the Closing Date, or (C) in exchange for, or out of,
               the Net Cash Proceeds of a substantially concurrent offering
               of shares of Capital Stock (other than Disqualified Stock)
               of the Company (or options, warrants or other rights to
               acquire such Capital Stock), to the extent such Net Cash
               Proceeds, cash or cash equivalents, ICG Common Stock,
               Capital Stock or such other assets have not been used
               pursuant to clause (C)(2) of the first paragraph or clause
               (iv) of the second paragraph, as the case may be, of this
               Section 4.04 or used to support the Incurrence of
               Indebtedness pursuant to clause (x) of the second paragraph
               under Section 4.03;

                    (iv)   the repurchase, redemption or other acquisition
               of Capital Stock of the Company or an Unrestricted
               Subsidiary (or options, warrants or other rights to acquire
               such Capital Stock) in exchange for, or out of the proceeds
               of a substantially concurrent offering of, shares of Capital
               Stock (other than Disqualified Stock) of the Company (or
               options, warrants or other rights to acquire such Capital
               Stock); or

                    (v)    other Restricted Payments in an aggregate amount
               not to exceed $10 million;

          provided that, except in the case of clauses (i), (ii), (iii) and
          --------
          (iv), no Default or Event of Default shall have occurred and be
          continuing or occur as a consequence of the actions or payments
          set forth therein.

                    Each Restricted Payment permitted pursuant to the
          preceding paragraph (other than the Restricted Payment referred
          to in clause (ii) thereof shall be included in calculating
          whether the conditions of clause (C) of clause (iv) of the first
          paragraph of this Section 4.04 have been met with respect to any
          subsequent Restricted Payments.

                    Any Restricted Payments made other than in cash shall
          be valued at fair market value. The amount of any Investment
          "outstanding" at any time shall be deemed to be equal to the
          amount of such Investment on the date made, less the return of
          capital to the Company and its Restricted Subsidiaries with
          respect to such Investment by distribution, sale or otherwise (up
          to the amount of such Investment on the date made).

                    SECTION 4.05.  Limitation on Dividend and Other Payment
                                   ----------------------------------------
          Restrictions Affecting Restricted Subsidiaries.  The Company will
          ----------------------------------------------
          not, and will not permit any Restricted Subsidiary to, create or
          otherwise cause or suffer to exist or become effective any
          consensual encumbrance or restriction of any kind on the ability
          of any Restricted Subsidiary to (i) pay dividends or make any
          other distributions permitted by applicable law on any Capital
          Stock of such Restricted Subsidiary owned by the Company or any
          other Restricted Subsidiary, (ii) pay any Indebtedness owed to
          the Company or any other Restricted Subsidiary, (iii) make loans
          or advances to the Company or any other Restricted Subsidiary or
          (iv) transfer any of its property or assets to the Company or any
          other Restricted Subsidiary.

                    The foregoing provisions shall not restrict any
          encumbrances or restrictions:

                    (i)    existing on the Closing Date this Indenture or
               any other agreements in effect on the Closing Date, and any
               extensions, refinancings, renewals or replacements of such
               agreements; provided that the encumbrances and restrictions
                           --------
               in any such extensions, refinancings, renewals or
               replacements are no less favorable in any material respect
               to the Holders than those encumbrances or restrictions that
               are then in effect and that are being extended, refinanced,
               renewed or replaced;

                    (ii)   existing under or by reason of applicable law,
               rule, regulation or order;

                    (iii)  existing with respect to any Person or the
               property or assets of such Person acquired by the Company or
               any Restricted Subsidiary, existing at the time of such
               acquisition and not incurred in contemplation thereof, which
               encumbrances or restrictions are not applicable to any
               Person or the property or assets of any Person other than
               such Person or the property or assets of such Person so
               acquired;

                    (iv)   in the case of clause (iv) of the first
               paragraph of this Section 4.05, (A) that restrict in a
               customary manner the subletting, assignment or transfer of
               any property or asset that is a lease, license, right-of-
               use, conveyance or contract or similar property or asset,
               (B) existing by virtue of any transfer of, agreement to
               transfer, option or right with respect to, or Lien on, any
               property or assets of the Company or any Restricted
               Subsidiary not otherwise prohibited by this Indenture, (C)
               arising or agreed to in the ordinary course of business, not
               relating to any Indebtedness, and that do not, individually
               or in the aggregate, detract from the value of property or
               assets of the Company or any Restricted Subsidiary in any
               manner material to the Company or any Restricted Subsidiary
               or (D) purchase money obligations (including, without
               limitation, Capitalized Leases and installment sales) for
               property acquired in the ordinary course of business that
               impose restrictions of the nature discussed in clause (iv)
               above on the property so acquired;

                    (v)    with respect to a Restricted Subsidiary and
               imposed pursuant to an agreement that has been entered into
               for the sale or disposition of all or substantially all of
               the Capital Stock of, or property and assets of, such
               Restricted Subsidiary;

                    (vi)   contained in the terms of any Indebtedness or
               any agreement pursuant to which such Indebtedness was issued
               if (A) (1) the encumbrances or restrictions apply only in
               the event of a payment default or a default with respect to
               a financial covenant contained in such Indebtedness or
               agreement or (2) the encumbrances or restrictions are
               similar in nature and substance to clause (iv) of the first
               paragraph of Section 4.04 hereof, as determined by the Board
               of Directors in good faith, (B) the encumbrances or
               restrictions are not materially more disadvantageous to the
               Holders of the Notes than is customary in comparable
               financings (as determined by the Company) and (C) the
               Company determines that any such encumbrances or
               restrictions will not materially affect the Company's
               ability to make principal or interest payments on the Notes;

                    (vii)  customary provisions in joint venture agreements
               and other similar agreements entered into in the ordinary
               course of business; and

                    (viii) any encumbrances or restrictions of the type
               referred to in clauses (i) through (iv) of the first
               paragraph of this Section 4.05 imposed by any amendments,
               modifications, renewals, restatements, increases,
               supplements, refundings, replacements or refinancings of the
               contracts referred to in clauses (i) through (vii) above;

          provided that such amendments, modifications, restatements, 
          --------
          renewals, increases, supplements, refundings, replacements or
          refinancings are, in the good faith judgment of the Company, not
          materially more disadvantageous to the Holders than those
          contained in the restriction prior to such amendment,
          modification, restatement, renewal, increase, supplement,
          refunding, replacement or refinancing.  Nothing contained in this
          Section 4.05 shall prevent the Company or any Restricted
          Subsidiary from (1) creating, incurring, assuming or suffering to
          exist any Liens otherwise permitted in Section 4.09 hereof or (2)
          restricting the sale or other disposition of property or assets
          of the Company or any of its Restricted Subsidiaries that secure
          Indebtedness of the Company or any of its Restricted
          Subsidiaries.

                    SECTION 4.06.  Limitation on the Issuance and Sale of 
                                   --------------------------------------
          Capital Stock of Restricted Subsidiaries.  The Company will not 
          ----------------------------------------
          sell, and will not permit any Restricted Subsidiary, directly or
          indirectly, to issue or sell, any shares of Capital Stock of a
          Restricted Subsidiary (including options, warrants or other
          rights to purchase shares of such Capital Stock) except (i) to
          the Company or a Wholly Owned Restricted Subsidiary; (ii)
          issuances of director's qualifying shares or sales to foreign
          nationals of shares of Capital Stock of foreign Restricted
          Subsidiaries, to the extent required by applicable law; (iii) if,
          immediately after giving effect to such issuance or sale, such
          Restricted Subsidiary would no longer constitute a Restricted
          Subsidiary and any Investment in such Person remaining after
          giving effect to such issuance or sale would have been permitted
          to be made under Section 4.04 hereof if made on the date of such
          issuance or sale; or (iv) issuances or sales of common stock of a
          Restricted Subsidiary, provided that the Company or any 
                                 --------
          Restricted Subsidiary applies an amount equal to the Net Cash
          Proceeds thereof in accordance with Section 4.11 hereof.

                    SECTION 4.07.  Limitation on Issuances of Guarantees by
                                   ----------------------------------------
          Restricted Subsidiaries.  The Company will not permit any 
          -----------------------
          Restricted Subsidiary, directly or indirectly, to Guarantee any
          Indebtedness of the Company which is pari passu with or
          subordinate in right of payment to the Notes ("Guaranteed 
                                                         ----------
          Indebtedness"), unless (i) such Restricted Subsidiary 
          ------------
          simultaneously executes and delivers a supplemental indenture to
          this Indenture providing for a Guarantee (a "Subsidiary 
                                                       ----------
          Guarantee") of payment of the Notes by such Restricted Subsidiary
          ---------
          and (ii) such Restricted Subsidiary waives and will not in any
          manner whatsoever claim or take the benefit or advantage of, any
          rights of reimbursement, indemnity or subrogation or any other
          rights against the Company or any other Restricted Subsidiary as
          a result of any payment by such Restricted Subsidiary under its
          Subsidiary Guarantee; provided that this paragraph shall not be 
                                --------
          applicable to any Guarantee of any Restricted Subsidiary that
          existed at the time such Person became a Restricted Subsidiary
          and was not Incurred in connection with, or in contemplation of,
          such Person becoming a Restricted Subsidiary.  If the Guaranteed
          Indebtedness is (A) pari passu in right of payment with the
          Notes, then the Guarantee of such Guaranteed Indebtedness shall
          be pari passu in right of payment with, or subordinated to, the
          Subsidiary Guarantee or (B) subordinated in right of payment to
          the Notes, then the Guarantee of such Guaranteed Indebtedness
          shall be subordinated in right of payment to the Subsidiary
          Guarantee at least to the extent that the Guaranteed Indebtedness
          is subordinated to the Notes.

                    Notwithstanding the foregoing, any Subsidiary Guarantee
          by a Restricted Subsidiary may provide by its terms that it shall
          be automatically and unconditionally released and discharged upon
          (i) any sale, exchange or transfer, to any Person not an
          Affiliate of the Company, of all of the Company's and each
          Restricted Subsidiary's Capital Stock in, or all or substantially
          all the assets of, such Restricted Subsidiary (which sale,
          exchange or transfer is not prohibited by this Indenture) or (ii)
          the release or discharge of the Guarantee which resulted in the
          creation of such Subsidiary Guarantee, except a discharge or
          release by or as a result of payment under such Guarantee.

                    SECTION 4.08.  Limitation on Transactions with 
                                   -------------------------------
          Shareholders and Affiliates.  The Company will not, and will not
          ---------------------------
          permit any Restricted Subsidiary to, directly or indirectly,
          enter into, renew or extend any transaction (including, without
          limitation, the purchase, sale, lease or exchange of property or
          assets, or the rendering of any service) with any Affiliate of
          the Company or any Restricted Subsidiary, except upon fair and
          reasonable terms no less favorable to the Company or such
          Restricted Subsidiary than could be obtained, at the time of such
          transaction or, if such transaction is pursuant to a written
          agreement, at the time of the execution of the agreement
          providing therefor, in a comparable arm's-length transaction with
          a Person that is not such an Affiliate.

                    The foregoing limitation does not limit, and shall not
          apply to:

                    (i)    transactions (A) approved by a majority of the
               disinterested members of the Board of Directors or (B) for
               which the Company or a Restricted Subsidiary delivers to the
               Trustee a written opinion of a nationally recognized
               investment banking firm or a nationally recognized firm
               having expertise in the specific area which is the subject
               of such determination stating that the transaction is fair
               to the Company or such Restricted Subsidiary from a
               financial point of view;

                    (ii)   any transaction solely between the Company and
               any of its Restricted Subsidiaries or solely between
               Restricted Subsidiaries;

                    (iii)  the payment of reasonable and customary regular
               fees to, and indemnity provided on behalf of, officers,
               directors, employees or consultants of the Company or its
               Restricted Subsidiaries;

                    (iv)   any payments or other transactions pursuant to
               any tax-sharing agreement between the Company and any other
               Person with which the Company files a consolidated tax
               return or with which the Company is part of a consolidated
               group for tax purposes; or

                    (v)    any Permitted Investments and Restricted
               Payments not prohibited by Section 4.04 hereof.

          Notwithstanding the foregoing, any transaction or series of
          related transactions covered by the first paragraph of this
          Section 4.08 and not covered by clauses (ii) through (v) of this
          paragraph the aggregate amount of which exceeds $2.0 million in
          value, must be approved or determined to be fair in the manner
          provided for in clause (i) (A) or (B) of this Section 4.08.

                    SECTION 4.09.  Limitation on Liens.  The Company will 
                                   -------------------
          not, and will not permit any Restricted Subsidiary to, create,
          incur, assume or suffer to exist any Lien on any of its assets or
          properties of any character (including, without limitation,
          licenses), or any shares of Capital Stock or Indebtedness of any
          Restricted Subsidiary, without making effective provision for all
          of the Notes and all other amounts due under this Indenture to be
          directly secured equally and ratably with (or, if the obligation
          or liability to be secured by such Lien is subordinated in right
          of payment to the Notes, prior to) the obligation or liability
          secured by such Lien.

                    The foregoing limitation does not apply to:

                    (i)    Liens existing on the Closing Date or required
               on the Closing Date to be provided in the future;

                    (ii)   Liens granted after the Closing Date on any
               assets or Capital Stock of the Company or its Restricted
               Subsidiaries created in favor of the Holders;

                    (iii)  Liens with respect to the assets of a Restricted
               Subsidiary granted by such Restricted Subsidiary to the
               Company or a Restricted Subsidiary to secure Indebtedness
               owing to the Company or such other Restricted Subsidiary;

                    (iv)   Liens securing Indebtedness which is Incurred to
               refinance secured Indebtedness which is permitted to be
               Incurred under clause (v) of the second paragraph of Section
               4.03 hereof; provided that such Liens do not extend to or 
                            --------
               cover any property or assets of the Company or any
               Restricted Subsidiary other than the property or assets
               securing the Indebtedness being refinanced;

                    (v)    Liens on any property or assets of Restricted
               Subsidiaries securing Indebtedness of Restricted
               Subsidiaries permitted under Section 4.03 hereof; or

                    (vi)   Permitted Liens.

                    SECTION 4.10.  Limitation on Sale-Leaseback 
                                   ----------------------------
          Transactions.  The Company will not, and will not permit any 
          ------------
          Restricted Subsidiary to, enter into any sale-leaseback
          transaction involving any of its assets or properties whether now
          owned or hereafter acquired, whereby the Company or a Restricted
          Subsidiary sells or transfers such assets or properties and then
          or thereafter leases such assets or properties or any part
          thereof or any other assets or properties which the Company or
          such Restricted Subsidiary, as the case may be, intends to use
          for substantially the same purpose or purposes as the assets or
          properties sold or transferred.

                    The foregoing restriction does not apply to any sale-
          leaseback transaction if:

                    (i)    the lease is for a period, including renewal
               rights, of not in excess of three years;

                    (ii)   the lease secures or relates to industrial
               revenue or pollution control bonds;

                    (iii)  the transaction is solely between the Company
               and any Wholly Owned Restricted Subsidiary or solely between
               Wholly Owned Restricted Subsidiaries; or

                    (iv)   the Company or such Restricted Subsidiary,
               within 12 months after the sale or transfer of any assets or
               properties is completed, applies an amount not less than the
               net proceeds received from such sale in accordance with
               clause (A) or (B) of the first paragraph of Section 4.11
               hereof.

                    SECTION 4.11.  Limitation on Asset Sales.  The Company
                                   -------------------------
          will not, and will not permit any Restricted Subsidiary to,
          consummate any Asset Sale, unless (i) the consideration received
          by the Company or such Restricted Subsidiary is at least equal to
          the fair market value of the assets sold or disposed of and (ii)
          at least 75% of the consideration received consists of cash or
          Temporary Cash Investments.  For purposes of this Section 4.11,
          the following are deemed to be cash:  (x) the principal amount or
          accreted value (whichever is larger) of Indebtedness of the
          Company or any Restricted Subsidiary with respect to which the
          Company or such Restricted Subsidiary has either (I) received a
          written release or (II) been released by operation of law, in
          either case, from all liability on such Indebtedness in
          connection with such Asset Sale and (y) securities received by
          the Company or any Restricted Subsidiary from the transferee that
          are promptly converted by the Company or such Restricted
          Subsidiary into cash. In the event and to the extent that the Net
          Cash Proceeds received by the Company or any of its Restricted
          Subsidiaries from one or more Asset Sales occurring on or after
          the Closing Date in any period of 12 consecutive months exceed
          10% of Adjusted Consolidated Net Tangible Assets (determined as
          of the date closest to the commencement of such 12-month period
          for which a consolidated balance sheet of the Company and its
          Subsidiaries has been filed with the Commission or provided to
          the Trustee pursuant to Section 4.18 hereof, then the Company
          shall or shall cause the relevant Restricted Subsidiary to (i)
          within 12 months after the date Net Cash Proceeds so received
          exceed 10% of Adjusted Consolidated Net Tangible Assets (A) apply
          an amount equal to such excess Net Cash Proceeds to permanently
          repay unsubordinated Indebtedness of the Company, or any
          Restricted Subsidiary providing a Subsidiary Guarantee pursuant
          to Section 4.07 hereof or Indebtedness of any other Restricted
          Subsidiary, in each case owing to a Person other than the Company
          or any of its Restricted Subsidiaries or (B) invest an equal
          amount, or the amount not so applied pursuant to clause (A) (or
          enter into a definitive agreement committing to so invest within
          12 months after the date of such agreement), (x) in property or
          assets (other than current assets) of a nature or type or that
          are used in a business (or in a Person (other than a natural
          person) having property and assets of a nature or type, or
          engaged in a business) similar or related to the nature or type
          of the property and assets of, or the business of, the Company
          and its Restricted Subsidiaries existing on the date of such
          investment (as determined in good faith by the Board of
          Directors, whose determination shall be conclusive and evidenced
          by a Board Resolution) or (y) in property or assets (other than
          current assets) related to the Telecommunications Business,
          including, without limitation, telecommunications switches and
          related equipment, services, leases, licenses, capacity and
          rights-of-use (or in a person (other than a natural person)
          having property or assets related to the Telecommunications
          Business, including, without limitation, telecommunications
          switches and related equipment, services, leases, licenses,
          capacity and rights-of-use) and (ii) apply (no later than the end
          of the 12-month period referred to in clause (i)) such excess Net
          Cash Proceeds (to the extent not applied pursuant to clause (i))
          as provided in the following paragraph of this Section 4.11.  The
          amount of such excess Net Cash Proceeds required to be applied
          (or to be committed to be applied) during such 12-month period as
          set forth in clause (i) of the preceding sentence and not applied
          as so required by the end of such period shall constitute "Excess
          Proceeds".

                    If, as of the first day of any calendar month, the
          aggregate amount of Excess Proceeds not theretofore subject to an
          Offer to Purchase pursuant to this Section 4.11 totals at least
          $20.0 million, the Company must commence, not later than the
          fifteenth Business Day of such month, and consummate an Offer to
          Purchase from the Holders on a pro rata basis, and an offer to
          purchase any outstanding Indebtedness with similar provisions
          requiring the Company to make an offer to purchase such
          Indebtedness, in an aggregate principal amount at maturity of
          Notes (or, if prior to February 15, 2003, the Accreted Value of
          the Notes) and such pari passu Indebtedness equal to (A) with
          respect to the Notes, the product of such Excess Proceeds
          multiplied by a fraction, the numerator of which is the
          outstanding principal amount at maturity of the Notes (or, if
          prior to February 15, 2003, the Accreted Value of the Notes) and
          the denominator of which is the sum of the outstanding principal
          amount at maturity of the Notes (or, if prior to February 15,
          2003, the Accreted Value of the Notes) and such pari passu
          Indebtedness (the product hereinafter referred to as the "Note
          Amount"), and (B) with respect to the pari passu Indebtedness,
          the excess of the Excess Proceeds over the Note Amount, at a
          purchase price equal to 100% of the Accreted Value of the Notes
          or such pari passu Indebtedness, as the case may be, on the
          relevant Payment Date or such other date set forth in the
          documentation governing the pari passu Indebtedness, plus, in
          each case, accrued interest (if any) to the Payment Date or such
          other date set forth in the documentation governing the pari
          passu Indebtedness. If the aggregate purchase price of the Notes
          tendered pursuant to the Offer to Purchase is less than the
          Excess Proceeds, the remaining will be available for use by the
          Company for general corporate purposes.  Upon the consummation of
          any Offer to Purchase in accordance with the terms of this
          Indenture, the amount of Net Cash Proceeds from Asset Sales
          subject to any future Offer to Purchase shall be deemed to be
          zero.

                    SECTION 4.12.  Repurchase of Notes upon a Change of 
                                   ------------------------------------
          Control.  The Company must commence, within 30 days of the 
          -------
          occurrence of a Change of Control, and consummate an Offer to
          Purchase for all Notes then outstanding, at a purchase price
          equal to 101% of the Accreted Value thereof on the relevant
          Payment Date, plus accrued interest (if any) to the Payment Date.

                    SECTION 4.13.  Existence.  Subject to Articles Four and
                                   ---------
          Five of this Indenture, the Company will do or cause to be done
          all things necessary to preserve and keep in full force and
          effect its existence and the existence of each of its Restricted
          Subsidiaries in accordance with the respective organizational
          documents of the Company and each such Subsidiary and the rights
          (whether pursuant to charter, partnership certificate, agreement,
          statute or otherwise), material licenses and franchises of the
          Company and each such Subsidiary; provided that the Company shall
                                            --------
          not be required to preserve any such right, license or franchise,
          or the existence of any Restricted Subsidiary, if the maintenance
          or preservation thereof is no longer desirable in the conduct of
          the business of the Company and its Restricted Subsidiaries taken
          as a whole.

                    SECTION 4.14.  Payment of Taxes and Other Claims.  The
                                   ---------------------------------
          Company will pay or discharge and shall cause each of its
          Subsidiaries to pay or discharge, or cause to be paid or
          discharged, before the same shall become delinquent (i) all
          material taxes, assessments and governmental charges levied or
          imposed upon (a) the Company or any such Subsidiary, (b) the
          income or profits of any such Subsidiary which is a corporation
          or (c) the property of the Company or any such Subsidiary and
          (ii) all material lawful claims for labor, materials and supplies
          that, if unpaid, might by law become a Lien upon the property of
          the Company or any such Subsidiary; provided that the Company 
                                              --------
          shall not be required to pay or discharge, or cause to be paid or
          discharged, any such tax, assessment, charge or claim the amount,
          applicability or validity of which is being contested in good
          faith by appropriate proceedings, for which adequate reserves
          have been established, and where the failure to effect such
          payment is not adverse in any material respect to the Holders.

                    SECTION 4.15.  Maintenance of Properties and Insurance. 
                                   ---------------------------------------
          The Company will cause all properties used or useful in the
          conduct of its business or the business of any of its Restricted
          Subsidiaries, to be maintained and kept in good condition, repair
          and working order and supplied with all necessary equipment and
          will cause to be made all necessary repairs, renewals,
          replacements, betterments and improvements thereof, all as in the
          judgment of the Company may be necessary so that the business
          carried on in connection therewith may be properly and
          advantageously conducted at all times; provided that nothing in 
                                                 --------
          this Section 4.15 shall prevent the Company or any such
          Subsidiary from discontinuing the use, operation or maintenance
          of any of such properties or disposing of any of them, if such
          discontinuance or disposal is, in the judgment of the Company,
          desirable in the conduct of the business of the Company or such
          Subsidiary.

                    The Company will provide or cause to be provided, for
          itself and its Restricted Subsidiaries, insurance (including
          appropriate self-insurance) against loss or damage of the kinds
          customarily insured against by corporations similarly situated
          and owning like properties, including, but not limited to,
          products liability insurance and public liability insurance, with
          reputable insurers or with the government of the United States of
          America, or an agency or instrumentality thereof, in such
          amounts, with such deductibles and by such methods as shall be
          customary for corporations similarly situated in the industry in
          which the Company or such Restricted Subsidiary, as the case may
          be, is then conducting business.

                    SECTION 4.16.  Notice of Defaults.  In the event that 
                                   ------------------
          the Company becomes aware of any Default or Event of Default, the
          Company, promptly after it becomes aware thereof, will give
          written notice thereof to the Trustee.

                    SECTION 4.17.  Compliance Certificates.  (a)  The 
                                   -----------------------
          Company shall deliver to the Trustee, within 90 days after the
          end of the Company's fiscal year, an Officers' Certificate
          stating whether or not the signers know of any Default or Event
          of Default that occurred during such fiscal year.  Such
          certificates shall contain a certification from the principal
          executive officer, principal financial officer or principal
          accounting officer of the Company that a review has been
          conducted of the activities of the Company and the Restricted
          Subsidiaries and the Company's and the Restricted Subsidiaries'
          performance under this Indenture and that the Company has
          complied with all conditions and covenants under this Indenture. 
          For purposes of this Section 4.17, such compliance shall be
          determined without regard to any period of grace or requirement
          of notice provided under this Indenture.  If they do know of such
          a Default or Event of Default, the certificate shall describe any
          such Default or Event of Default and its status.

                    (b)    The Company shall deliver to the Trustee, within
          90 days after the end of its fiscal year, a certificate signed by
          the Company's independent certified public accountants stating
          (i) that their audit examination has included a review of the
          terms of this Indenture and the Notes as they relate to
          accounting matters, (ii) that they have read the most recent
          Officers' Certificate delivered to the Trustee pursuant to
          paragraph (a) of this Section 4.17 and (iii) whether, in
          connection with their audit examination, anything came to their
          attention that caused them to believe that the Company was not in
          compliance with any of the terms, covenants, provisions or
          conditions of Article Four and Section 5.01 of this Indenture as
          they pertain to accounting matters and, if any Default or Event
          of Default has come to their attention, specifying the nature and
          period of existence thereof; provided that such independent 
                                       --------
          certified public accountants shall not be liable in respect of
          such statement by reason of any failure to obtain knowledge of
          any such Default or Event of Default that would not be disclosed
          in the course of an audit examination conducted in accordance
          with generally accepted auditing standards in effect at the date
          of such examination.

                    (c)    Within 90 days of the end of each of the
          Company's fiscal years, the Company shall deliver to the Trustee
          a list of all Significant Subsidiaries.  The Trustee shall have
          no duty with respect to any such list except to keep it on file
          and available for inspection by the Holders.

                    SECTION 4.18.  Commission Reports and Reports to 
                                   ---------------------------------
          Holders.  At all times from and after the earlier of (i) the date
          -------
          of the commencement of an Exchange Offer or the effectiveness of
          a Shelf Registration Statement (the "Registration") and (ii) the
                                               ------------
          date that is six months after the Closing Date, in either case,
          whether or not the Company is then required to file reports with
          the Commission, the Company shall deliver for filing with the
          Commission all such reports and other information as it would be
          required to file with the Commission by Section 13(a) or 15(d)
          under the Securities Exchange Act of 1934 if it were subject
          thereto.  All references herein to reports "filed" with the
          Commission shall be deemed to refer to the reports then most
          recently delivered for filing, whether or not accepted by the
          Commission.  The Company shall supply the Trustee and each Holder
          or shall supply to the Trustee for forwarding to each such
          Holder, without cost to such Holder, copies of such reports and
          other information.  In addition, at all times prior to the
          earlier of the date of the Registration and the date that is six
          months after the Closing Date, the Company shall, at its cost,
          deliver to each Holder of the Notes quarterly and annual reports
          substantially equivalent to those which would be required by the
          Exchange Act (or, in lieu thereof, the Registration Statement on
          Form S-1, S-3 or S-4 filed or to be filed with the Commission in
          connection with the Exchange Offer or the Shelf Registration
          Statement, if such Form and any amendments thereof contains
          comparable information).  In addition, at all times prior to the
          Registration, upon the request of any Holder or any prospective
          purchaser of the Notes designated by a Holder, the Company shall
          supply to such Holder or such prospective purchaser the
          information required under Rule 144A under the Securities Act.

                    SECTION 4.19.  Waiver of Stay, Extension or Usury Laws. 
                                   ---------------------------------------
          The Company covenants (to the extent that it may lawfully do so)
          that it will not at any time insist upon, or plead, or in any
          manner whatsoever claim or take the benefit or advantage of, any
          stay or extension law or any usury law or other law that would
          prohibit or forgive the Company from paying all or any portion of
          the principal of, premium, if any, or interest on the Notes as
          contemplated herein, wherever enacted, now or at any time
          hereafter in force, or that may affect the covenants or the
          performance of this Indenture; and (to the extent that it may
          lawfully do so) the Company hereby expressly waives all benefit
          or advantage of any such law and covenants that it will not
          hinder, delay or impede the execution of any power herein granted
          to the Trustee, but will suffer and permit the execution of every
          such power as though no such law had been enacted.

                                     ARTICLE FIVE
                                SUCCESSOR CORPORATION

                    SECTION 5.01.  When Company May Merge, Etc.  The 
                                   ----------------------------
          Company shall not consolidate with, merge with or into, or sell,
          convey, transfer, lease or otherwise dispose of all or
          substantially all of its property and assets (as an entirety or
          substantially an entirety in one transaction or a series of
          related transactions) to, any Person or permit any Person to
          merge with or into the Company unless:

                    (i)    the Company shall be the continuing Person, or
               the Person (if other than the Company) formed by such
               consolidation or into which the Company is merged or that
               acquired or leased such property and assets of the Company
               shall be a corporation organized and validly existing under
               the laws of the United States of America or any jurisdiction
               thereof and shall expressly assume, by a supplemental
               indenture, executed and delivered to the Trustee, all of the
               obligations of the Company on all of the Notes and under
               this Indenture;

                    (ii)   immediately after giving effect to such
               transaction, no Default or Event of Default shall have
               occurred and be continuing;

                    (iii)  immediately after giving effect to such
               transaction on a pro forma basis, (A) the Company or any
               Person becoming the successor obligor of the Notes, as the
               case may be, shall have a Consolidated Net Worth equal to or
               greater than the Consolidated Net Worth of the Company
               immediately prior to such transaction; or (B) the Company or
               any Person becoming the successor obligor of the Notes, as
               the case may be, shall have a Consolidated Leverage Ratio no
               more than the greater of (I) 6:1 and (II) the Consolidated
               Leverage Ratio of the Company immediately prior to such
               transaction; provided that this clause (iii) shall not apply
                            --------
               to a consolidation or merger with or into a Wholly Owned
               Restricted Subsidiary with a positive net worth; provided 
                                                                --------
               that, in connection with any such merger or consolidation,
               no consideration (other than Capital Stock (other than
               Disqualified Stock) in the surviving Person or the Company)
               shall be issued or distributed to the stockholders of the
               Company; and

                    (iv)   the Company delivers to the Trustee an Officers'
               Certificate (attaching the arithmetic computations to
               demonstrate compliance with clause (iii) above) and Opinion
               of Counsel, in each case stating that such consolidation,
               merger or transfer and such supplemental indenture complies
               with this provision and that all conditions precedent
               provided for herein relating to such transaction have been
               complied with;

          provided, however, that clause (iii) of this Section 5.01 does 
          --------  -------
          not apply if, in the good faith determination of the Board of
          Directors of the Company, whose determination shall be evidenced
          by a Board Resolution, the principal purpose of such transaction
          is to change the state of incorporation of the Company; and that
          any such transaction shall not have as one of its purposes the
          evasion of the foregoing limitations.

                    SECTION 5.02.  Successor Substituted.  Upon any 
                                   ---------------------
          consolidation or merger, or any sale, conveyance, transfer or
          other disposition of all or substantially all of the property and
          assets of the Company in accordance with Section 5.01 of this
          Indenture, the successor Person formed by such consolidation or
          into which the Company is merged or to which such sale,
          conveyance, transfer or other disposition is made shall succeed
          to, and be substituted for, and may exercise every right and
          power of, the Company under this Indenture with the same effect
          as if such successor Person had been named as the Company herein.


                                     ARTICLE SIX
                                 DEFAULT AND REMEDIES

                    SECTION 6.01.  Events of Default.  An "Event of 
                                   -----------------       --------
          Default" shall occur with respect to the Notes if:
          -------

                    (a)    the Company defaults in the payment of principal
               of (or premium, if any, on) any Note when the same becomes
               due and payable at maturity, upon acceleration, redemption
               or otherwise;

                    (b)    the Company defaults in the payment of interest
               on any Note when the same becomes due and payable, and such
               default continues for a period of 30 days;

                    (c)    the Company defaults in the performance of or
               breaches any other covenant or agreement of the Company in
               this Indenture or under the Notes (other than a default
               specified in clause (a) or (b) of this Section 6.01 and such
               default or breach continues for a period of 30 consecutive
               days after written notice by the Trustee to the Company or
               to the Company and the Trustee by the Holders of 25% or more
               in aggregate principal amount of the Notes;

                    (d)    the Company fails to make or consummate an Offer
               to Purchase in accordance with Section 4.11 hereof;

                    (e)    the Company fails to make or consummate an Offer
               to Purchase in accordance with the provisions of Section
               4.12 hereof;

                    (f)    there occurs with respect to any issue or issues
               of Indebtedness of the Company or any Significant Subsidiary
               having an outstanding principal amount at maturity of $10
               million or more in the aggregate for all such issues of all
               such Persons, whether such Indebtedness now exists or shall
               hereafter be created, (I) an event of default that has
               caused the holder thereof to declare such Indebtedness to be
               due and payable prior to its Stated Maturity and such
               Indebtedness has not been discharged in full or such
               acceleration has not been rescinded or annulled within 30
               days of such acceleration and/or (II) the failure to make a
               principal payment at the final (but not any interim) fixed
               maturity and such defaulted payment shall not have been
               made, waived or extended within 30 days of such payment
               default;

                    (g)    any final judgment or order (not covered by
               insurance) for the payment of money in excess of $10 million
               in the aggregate (treating any deductibles, self-insurance
               or retention as not so covered) shall be rendered against
               the Company or any Significant Subsidiary and shall not be
               paid or discharged, and there shall be any period of 30
               consecutive days following entry of the final judgment or
               order that causes the aggregate amount for all such final
               judgments or orders outstanding and not paid or discharged
               against the Company or any of its Significant Subsidiaries
               to exceed $10 million during which a stay of enforcement of
               such final judgment or order, by reason of a pending appeal
               or otherwise, shall not be in effect;

                    (h)    a court having jurisdiction in the premises
               enters a decree or order for (A) relief in respect of the
               Company or any Significant Subsidiary in an involuntary case
               under any applicable bankruptcy, insolvency or other similar
               law now or hereafter in effect, (B) appointment of a
               receiver, liquidator, assignee, custodian, trustee,
               sequestrator or similar official of the Company or any
               Significant Subsidiary or for all or substantially all of
               the property and assets of the Company or any Significant
               Subsidiary or (C) the winding up or liquidation of the
               affairs of the Company or any Significant Subsidiary and, in
               each case, such decree or order shall remain unstayed and in
               effect for a period of 30 consecutive days; or

                    (i)    the Company or any Significant Subsidiary (A)
               commences a voluntary case under any applicable bankruptcy,
               insolvency or other similar law now or hereafter in effect,
               or consents to the entry of an order for relief in an
               involuntary case under any such law, (B) consents to the
               appointment of or taking possession by a receiver,
               liquidator, assignee, custodian, trustee, sequestrator or
               similar official of the Company or any Significant
               Subsidiary or for all or substantially all of the property
               and assets of the Company or any Significant Subsidiary or
               (C) effects any general assignment for the benefit of
               creditors.

                    SECTION 6.02.  Acceleration.  If an Event of Default 
                                   ------------
          (other than an Event of Default specified in clause (h) or (i) of
          Section 6.01 that occurs with respect to the Company) occurs and
          is continuing under this Indenture, the Trustee or the Holders of
          at least 25% in aggregate principal amount of the Notes then
          outstanding, by written notice to the Company (and to the Trustee
          if such notice is given by the Holders), may, and the Trustee at
          the request of such Holders shall, declare the Accreted Value of,
          premium, if any, and accrued interest on the Notes to be
          immediately due and payable.  Upon a declaration of acceleration,
          such Accreted Value of, premium, if any, and accrued interest
          shall be immediately due and payable.  In the event of a
          declaration of acceleration because an Event of Default set forth
          in clause (f) of Section 6.01 has occurred and is continuing,
          such declaration of acceleration shall be automatically rescinded
          and annulled if the event of default triggering such Event of
          Default pursuant to clause (f) shall be remedied or cured by the
          Company or the relevant Significant Subsidiary or waived by the
          holders of the relevant Indebtedness within 60 days after the
          declaration of acceleration with respect thereto.  If an Event of
          Default specified in clause (h) or (i) of Section 6.01 occurs
          with respect to the Company, the Accreted Value of, premium, if
          any, and accrued interest on the Notes then outstanding shall
          ipso facto become and be immediately due and payable without any
          declaration or other act on the part of the Trustee or any
          Holder.

                    At any time after such a declaration of acceleration,
          but before a judgment or decree for the payment of the money due
          has been obtained by the Trustee, the Holders of at least a
          majority in principal amount at maturity of the outstanding Notes
          by written notice to the Company and to the Trustee may waive all
          past Defaults and rescind and annul such declaration of
          acceleration and its consequences if (a) the Company has paid or
          deposited with the Trustee a sum sufficient to pay (i) all sums
          paid or advanced by the Trustee hereunder and the reasonable
          compensation, expenses, disbursements and advances of the
          Trustee, its agents and counsel, (ii) all overdue interest on all
          Notes, (iii) the principal of and premium, if any, on any Notes
          that have become due otherwise than by such declaration or
          occurrence of acceleration and interest thereon at the rate
          prescribed therefor by such Notes, and (iv) to the extent that
          payment of such interest is lawful, interest upon overdue
          interest at the rate prescribed therefor by such Notes, (b) all
          existing Events of Default, other than the non-payment of the
          Accreted Value of, premium, if any, and accrued interest on the
          Notes that have become due solely by such declaration of
          acceleration, have been cured or waived and (c) the rescission
          would not conflict with any judgment or decree of a court of
          competent jurisdiction.

                    SECTION 6.03.  Other Remedies.  If an Event of Default
                                   --------------
          occurs and is continuing, the Trustee may pursue any available
          remedy by proceeding at law or in equity to collect the payment
          of principal of, premium, if any, or interest on the Notes or to
          enforce the performance of any provision of the Notes or this
          Indenture.

                    The Trustee may maintain a proceeding even if it does
          not possess any of the Notes or does not produce any of them in
          the proceeding.

                    SECTION 6.04.  Waiver of Past Defaults.  Subject to 
                                   -----------------------
          Sections 6.02, 6.07 and 9.02, the Holders of at least a majority
          in principal amount at maturity of the outstanding Notes, by
          notice to the Trustee, may waive an existing Default or Event of
          Default and its consequences, except a Default in the payment of
          the Accreted Value of, premium, if any, or accrued interest on
          any Note as specified in clause (a) or (b) of Section 6.01 or in
          respect of a covenant or provision of this Indenture which cannot
          be modified or amended without the consent of the holder of each
          outstanding Note affected.  Upon any such waiver, such Default
          shall cease to exist, and any Event of Default arising therefrom
          shall be deemed to have been cured, for every purpose of this
          Indenture; but no such waiver shall extend to any subsequent or
          other Default or Event of Default or impair any right consequent
          thereto.

                    SECTION 6.05.  Control by Majority.  The Holders of at
                                   -------------------
          least a majority in aggregate principal amount at maturity of the
          outstanding Notes may direct the time, method and place of
          conducting any proceeding for any remedy available to the Trustee
          or exercising any trust or power conferred on the Trustee.
          However, the Trustee may refuse to follow any direction that
          conflicts with law or this Indenture, that may involve the
          Trustee in personal liability, or that the Trustee determines in
          good faith may be unduly prejudicial to the rights of Holders of
          Notes not joining in the giving of such direction and may take
          any other action it deems proper that is not inconsistent with
          any such direction received from Holders of Notes.

                    SECTION 6.06.  Limitation on Suits.  A Holder may not 
                                   -------------------
          institute any proceeding, judicial or otherwise, with respect to
          this Indenture or the Notes, or for the appointment of a receiver
          or trustee, or for any other remedy hereunder unless:

                    (i)    such Holder has previously given to the Trustee
               written notice of a continuing Event of Default;

                    (ii)   the Holders of at least 25% in aggregate
               principal amount at maturity of outstanding Notes shall have
               made written request to the Trustee to pursue the remedy;

                    (iii)  such Holder or Holders have offered to the
               Trustee indemnity satisfactory to the Trustee against any
               costs, liabilities or expenses to be incurred in compliance
               with such request;

                    (iv)   the Trustee has failed to comply with the
               request within 60 days after receipt of the request and the
               offer of indemnity; and

                    (v)    during such 60-day period, the Holders of a
               majority in aggregate principal amount at maturity of the
               outstanding Notes have not given the Trustee a direction
               that is inconsistent with such request.

                    For purposes of Section 6.05 of this Indenture and this
          Section 6.06, the Trustee shall comply with TIA Section 316(a) in
          making any determination of whether the Holders of the required
          aggregate principal amount at maturity of outstanding Notes have
          concurred in any request or direction of the Trustee to pursue
          any remedy available to the Trustee or the Holders with respect
          to this Indenture or the Notes or otherwise under the law.

                    A Holder may not use this Indenture to prejudice the
          rights of another Holder or to obtain a preference or priority
          over such other Holder.

                    SECTION 6.07.  Rights of Holders to Receive Payment.  
                                   ------------------------------------
          Notwithstanding any other provision of this Indenture, the right
          of any Holder of a Note to receive payment of principal of,
          premium, if any, or interest on such Holder's Note on or after
          the respective due dates expressed on such Note, or to bring suit
          for the enforcement of any such payment on or after such
          respective dates, shall not be impaired or affected without the
          consent of such Holder.

                    SECTION 6.08.  Collection Suit by Trustee.  If an Event
                                   --------------------------
          of Default in payment of principal, premium or interest specified
          in clause (a) or (b) of Section 6.01 occurs and is continuing,
          the Trustee may recover judgment in its own name and as trustee
          of an express trust against the Company or any other obligor of
          the Notes for the whole amount of principal, premium, if any, and
          accrued interest remaining unpaid, together with interest on
          overdue principal, premium, if any, and, to the extent that
          payment of such interest is lawful, interest on overdue
          installments of interest, in each case at the rate specified in
          the Notes, and such further amount as shall be sufficient to
          cover the costs and expenses of collection, including the
          reasonable compensation, expenses, disbursements and advances of
          the Trustee, its agents and counsel.

                    SECTION 6.09.  Trustee May File Proofs of Claim.  The 
                                   --------------------------------
          Trustee may file such proofs of claim and other papers or
          documents as may be necessary or advisable in order to have the
          claims of the Trustee (including any claim for the reasonable
          compensation, expenses, disbursements and advances of the
          Trustee, its agents and counsel, and any other amounts due the
          Trustee under Section 7.07) and the Holders allowed in any
          judicial proceedings relative to the Company (or any other
          obligor of the Notes), its creditors or its property and shall be
          entitled and empowered to collect and receive any monies,
          securities or other property payable or deliverable upon
          conversion or exchange of the Notes or upon any such claims and
          to distribute the same, and any custodian, receiver, assignee,
          trustee, liquidator, sequestrator or other similar official in
          any such judicial proceeding is hereby authorized by each Holder
          to make such payments to the Trustee and, in the event that the
          Trustee shall consent to the making of such payments directly to
          the Holders, to pay to the Trustee any amount due to it for the
          reasonable compensation, expenses, disbursements and advances of
          the Trustee, its agent and counsel, and any other amounts due the
          Trustee under Section 7.07.  Nothing herein contained shall be
          deemed to empower the Trustee to authorize or consent to, or
          accept or adopt on behalf of any Holder, any plan of
          reorganization, arrangement, adjustment or composition affecting
          the Notes or the rights of any Holder thereof, or to authorize
          the Trustee to vote in respect of the claim of any Holder in any
          such proceeding.

                    SECTION 6.10.  Priorities.  If the Trustee collects any
                                   ----------
          money pursuant to this Article Six, it shall pay out the money in
          the following order:

                    First:    to the Trustee for all amounts due under
               Section 7.07;

                    Second:   to Holders for amounts then due and unpaid
               for principal of, premium, if any, and interest on the Notes
               in respect of which or for the benefit of which such money
               has been collected, ratably, without preference or priority
               of any kind, according to the amounts due and payable on
               such Notes for principal, premium, if any, and interest,
               respectively; and

                    Third:    to the Company or any other obligors of the
               Notes, as their interests may appear, or as a court of
               competent jurisdiction may direct.

                    The Trustee, upon prior written notice to the Company,
          may fix a record date and payment date for any payment to Holders
          pursuant to this Section 6.10.

                    SECTION 6.11.  Undertaking for Costs.  In any suit for
                                   ---------------------
          the enforcement of any right or remedy under this Indenture or in
          any suit against the Trustee for any action taken or omitted by
          it as Trustee, a court may require any party litigant in such
          suit to file an undertaking to pay the costs of the suit, and the
          court may assess reasonable costs, including reasonable
          attorneys' fees, against any party litigant in the suit having
          due regard to the merits and good faith of the claims or defenses
          made by the party litigant.  This Section 6.11 does not apply to
          a suit by the Trustee, a suit by a Holder pursuant to Section
          6.07 of this Indenture, or a suit by Holders of more than 10% in
          principal amount at maturity of the outstanding Notes.

                    SECTION 6.12.  Restoration of Rights and Remedies.  If
                                   ----------------------------------
          the Trustee or any Holder has instituted any proceeding to
          enforce any right or remedy under this Indenture and such
          proceeding has been discontinued or abandoned for any reason, or
          has been determined adversely to the Trustee or to such Holder,
          then, and in every such case, subject to any determination in
          such proceeding, the Company, the Trustee and the Holders shall
          be restored severally and respectively to their former positions
          hereunder and thereafter all rights and remedies of the Company,
          the Trustee and the Holders shall continue as though no such
          proceeding had been instituted.

                    SECTION 6.13.  Rights and Remedies Cumulative.  Except
                                   ------------------------------
          as otherwise provided with respect to the replacement or payment
          of mutilated, destroyed, lost or wrongfully taken Notes in
          Section 2.09, no right or remedy herein conferred upon or
          reserved to the Trustee or to the Holders is intended to be
          exclusive of any other right or remedy, and every right and
          remedy shall, to the extent permitted by law, be cumulative and
          in addition to every other right and remedy given hereunder or
          now or hereafter existing at law or in equity or otherwise.  The
          assertion or employment of any right or remedy hereunder, or
          otherwise, shall not prevent the concurrent assertion or
          employment of any other appropriate right or remedy.

                    SECTION 6.14.  Delay or Omission Not Waiver.  No delay
                                   ----------------------------
          or omission of the Trustee or of any Holder to exercise any right
          or remedy accruing upon any Event of Default shall impair any
          such right or remedy or constitute a waiver of any such Event of
          Default or an acquiescence therein.  Every right and remedy given
          by this Article Six or by law to the Trustee or to the Holders
          may be exercised from time to time, and as often as may be deemed
          expedient, by the Trustee or by the Holders, as the case may be.


                                    ARTICLE SEVEN
                                       TRUSTEE

                    SECTION 7.01.  General.  The duties and 
                                   -------
          responsibilities of the Trustee shall be as provided by the TIA
          and as set forth herein.  Notwithstanding the foregoing, no
          provision of this Indenture shall require the Trustee to expend
          or risk its own funds or otherwise incur any financial liability
          in the performance of any of its duties hereunder, or in the
          exercise of any of its rights or powers, if it shall have
          reasonable grounds for believing that repayment of such funds or
          adequate indemnity against such risk or liability is not
          reasonably assured to it.  Whether or not therein expressly so
          provided, every provision of this Indenture relating to the
          conduct or affecting the liability of or affording protection to
          the Trustee shall be subject to the provisions of this Article
          Seven.

                    SECTION 7.02.  Certain Rights of Trustee.  Subject to 
                                   -------------------------
          TIA Sections 315(a) through (d):

                    (i)  the Trustee may rely and shall be protected in
               acting or refraining from acting upon any resolution,
               certificate, statement, instrument, opinion, report, notice,
               request, direction, consent, order, bond, debenture, note,
               other evidence of indebtedness or other paper or document
               believed by it to be genuine and to have been signed or
               presented by the proper person.  The Trustee need not
               investigate any fact or matter stated in the document and
               may in good faith conclusively rely as to the truth of the
               statements and the correctness of the opinions therein;

                    (ii) before the Trustee acts or refrains from acting,
               it may require an Officers' Certificate or an Opinion of
               Counsel, which shall conform to Section 10.04.  The Trustee
               shall not be liable for any action it takes or omits to take
               in good faith in reliance on such certificate, opinion
               and/or an accountants' certificate if required under the
               TIA;

                    (iii)     the Trustee may act through its attorneys and
               agents and shall not be responsible for the misconduct or
               negligence of any agent appointed with due care;

                    (iv) the Trustee shall be under no obligation to
               exercise any of the rights or powers vested in it by this
               Indenture at the request or direction of any of the Holders,
               unless such Holders shall have offered to the Trustee
               security or indemnity reasonably satisfactory to it against
               the costs, expenses and liabilities that might be incurred
               by it in compliance with such request or direction;

                    (v)  the Trustee shall not be liable for any action it
               takes or omits to take in good faith that it believes to be
               authorized or within its rights or powers or for any action
               it takes or omits to take in accordance with the direction
               of the Holders of a majority in principal amount at maturity
               of the Outstanding Notes relating to the time, method and
               place of conducting any proceeding for any remedy available
               to the Trustee, or exercising any trust or power conferred
               upon the Trustee, under this Indenture; provided that the 
                                                       --------
               Trustee's conduct does not constitute gross negligence or
               bad faith;

                    (vi) whenever in the administration of this Indenture
               the Trustee shall deem it desirable that a making be proved
               or established prior to taking, suffering or omitting any
               action hereunder, the Trustee (unless other evidence be
               herein specifically prescribed) may, in the absence of bad
               faith on its part, rely upon an Officer's Certificate; and

                    (vii)     the Trustee shall not be bound to make any
               investigation into the facts or matters stated in any
               resolution, certificate, statement, instrument, opinion,
               report, notice, request, direction, consent, order, bond,
               debenture, note, other evidence of indebtedness or other
               paper or document, but the Trustee, in its discretion, may
               make such further inquiry or investigation into such facts
               or matters as it may see fit, and, if the Trustee shall
               determine to make such further inquiry or investigation, it
               shall be entitled to examine the books, records and premises
               of the Company personally or by agent or attorney.

                    SECTION 7.03.  Individual Rights of Trustee.  The 
                                   ----------------------------
          Trustee, in its individual or any other capacity, may become the
          owner or pledgee of Notes and may otherwise deal with the Company
          or its Affiliates with the same rights it would have if it were
          not the Trustee.  Any Agent may do the same with like rights. 
          However, the Trustee is subject to TIA Sections 310(b) and 311.

                    SECTION 7.04.  Trustee's Disclaimer.  The Trustee 
                                   --------------------
          (i) makes no representation as to the validity or adequacy of
          this Indenture or the Notes, (ii) shall not be accountable for
          the Company's use or application of the proceeds from the Notes
          and (iii) shall not be responsible for any statement in the Notes
          other than its certificate of authentication.

                    SECTION 7.05.  Notice of Default.  If any Default or 
                                   -----------------
          any Event of Default occurs and is continuing and if such Default
          or Event of Default is known to a Responsible Officer of the
          Trustee, the Trustee shall mail to each Holder in the manner and
          to the extent provided in TIA Section 313(c) notice of the
          Default or Event of Default within 90 days after it occurs,
          unless such Default or Event of Default has been cured; provided,
                                                                  --------
          however, that, except in the case of a default in the payment of
          -------
          the principal of, premium, if any, or interest on any Note, the
          Trustee shall be protected in withholding such notice if and so
          long as the board of directors, the executive committee or a
          trust committee of directors and/or Responsible Officers of the
          Trustee in good faith determine that the withholding of such
          notice is in the interest of the Holders.

                    SECTION 7.06.  Reports by Trustee to Holders.  Within 
                                   -----------------------------
          60 days after each May 15, beginning with May 15, 1998, the
          Trustee shall mail to each Holder as provided in TIA Section
          313(c) a brief report that complies with TIA Section 313(a) dated
          as of such May 15, if required by TIA Section 313(a).

                    SECTION 7.07.  Compensation and Indemnity.  The Company
                                   --------------------------
          shall pay to the Trustee such compensation as shall be agreed
          upon in writing for its services.  The compensation of the
          Trustee shall not be limited by any law on compensation of a
          trustee of an express trust.  The Company shall reimburse the
          Trustee upon request for all reasonable out-of-pocket expenses
          and advances incurred or made by the Trustee.  Such expenses
          shall include the reasonable compensation and expenses of the
          Trustee's agents and counsel.

                    The Company shall indemnify the Trustee for, and hold
          it harmless against, any loss or liability or expense incurred by
          it without negligence or bad faith on its part in connection with
          the acceptance or administration of this Indenture and its duties
          under this Indenture and the Notes, including the costs and
          expenses of defending itself against any claim or liability and
          of complying with any process served upon it or any of its
          officers in connection with the exercise or performance of any of
          its powers or duties under this Indenture and the Notes.

                    To secure the Company's payment obligations in this
          Section 7.07, the Trustee shall have a lien prior to the Notes on
          all money or property held or collected by the Trustee, in its
          capacity as Trustee, except money or property held in trust to
          pay principal of, premium, if any, and interest on particular
          Notes.
                    If the Trustee incurs expenses or renders services
          after the occurrence of an Event of Default specified in clause
          (h) or (i) of Section 6.01, the expenses and the compensation for
          the services will be intended to constitute expenses of
          administration under Title 11 of the United States Bankruptcy
          Code or any applicable federal or state law for the relief of
          debtors.

                    SECTION 7.08.  Replacement of Trustee.  A resignation 
                                   ----------------------
          or removal of the Trustee and appointment of a successor Trustee
          shall become effective only upon the successor Trustee's
          acceptance of appointment as provided in this Section 7.08.

                    The Trustee may resign at any time by so notifying the
          Company in writing at least 30 days prior to the date of the
          proposed resignation.  The Holders of a majority in principal
          amount at maturity of the outstanding Notes may remove the
          Trustee by so notifying the Trustee in writing and may appoint a
          successor Trustee with the consent of the Company.  The Company
          may at any time remove the Trustee, by Company Order given at
          least 30 days prior to the date of the proposed removal.

                    If the Trustee resigns or is removed, or if a vacancy
          exists in the office of Trustee for any reason, the Company shall
          promptly appoint a successor Trustee.  Within one year after the
          successor Trustee takes office, the Holders of a majority in
          principal amount at maturity of the outstanding Notes may appoint
          a successor Trustee to replace the successor Trustee appointed by
          the Company.  If the successor Trustee does not deliver its
          written acceptance required by the next succeeding paragraph of
          this Section 7.08 within 30 days after the retiring Trustee
          resigns or is removed, the retiring Trustee, the Company or the
          Holders of a majority in principal amount at maturity of the
          outstanding Notes may petition any court of competent
          jurisdiction for the appointment of a successor Trustee.

                    A successor Trustee shall deliver a written acceptance
          of its appointment to the retiring Trustee and to the Company. 
          Immediately after the delivery of such written acceptance,
          subject to the lien provided in Section 7.07, (i) the retiring
          Trustee shall transfer all property held by it as Trustee to the
          successor Trustee, (ii) the resignation or removal of the
          retiring Trustee shall become effective and (iii) the successor
          Trustee shall have all the rights, powers and duties of the
          Trustee under this Indenture.  A successor Trustee shall mail
          notice of its succession to each Holder.

                    If the Trustee is no longer eligible under Section
          7.10, any Holder who satisfies the requirements of TIA Section
          310(b) may petition any court of competent jurisdiction for the
          removal of the Trustee and the appointment of a successor
          Trustee.

                    The Company shall give notice of any resignation and
          any removal of the Trustee and each appointment of a successor
          Trustee to all Holders.  Each notice shall include the name of
          the successor Trustee and the address of its Corporate Trust
          Office.

                    Notwithstanding replacement of the Trustee pursuant to
          this Section 7.08, the Company's obligation under Section 7.07
          shall continue for the benefit of the retiring Trustee.

                    SECTION 7.09.  Successor Trustee by Merger, Etc.  If 
                                   ---------------------------------
          the Trustee consolidates with, merges or converts into, or
          transfers all or substantially all of its corporate trust
          business to, another corporation or national banking association,
          the resulting, surviving or transferee corporation or national
          banking association without any further act shall be the
          successor Trustee with the same effect as if the successor
          Trustee had been named as the Trustee herein.

                    SECTION 7.10.  Eligibility.  This Indenture shall 
                                   -----------
          always have a Trustee who satisfies the requirements of TIA
          Sections 310(a)(1) and 310(a)(5).  The Trustee shall have a
          combined capital and surplus of at least $25,000,000 as set forth
          in its most recent published annual report of condition.

                    SECTION 7.11.  Money Held in Trust.  The Trustee shall
                                   -------------------
          not be liable for  interest on any money received by it except as
          the Trustee may agree with the Company.  Money held in trust by
          the Trustee need not be segregated from other funds except to the
          extent required by law and except for money held in trust under
          Article Eight of this Indenture.

                    SECTION 7.12.  Withholding Taxes.  The Trustee, as 
                                   -----------------
          agent for the Company, shall exclude and withhold from each
          payment of principal and interest and other amounts due hereunder
          or under the Notes any and all withholding taxes applicable
          thereto as required by law.  The Trustee agrees to act as such
          withholding agent and, in connection therewith, whenever any
          present or future taxes or similar charges are required to be
          withheld with respect to any amounts payable in respect of the
          Notes, to withhold such amounts and timely pay the same to the
          appropriate authority in the name of and on behalf of the Holders
          of the Notes, that it will file any necessary withholding tax
          returns or statements when due, and that, as promptly as possible
          after the payment thereof, it will deliver to each Holder of a
          Note appropriate documentation showing the payment thereof,
          together with such additional documentary evidence as such
          Holders may reasonably request from time to time.


                                    ARTICLE EIGHT
                                DISCHARGE OF INDENTURE

                    SECTION 8.01.  Termination of the Company's 
                                   ----------------------------
          Obligations.  Except as otherwise provided in this Section 8.01,
          -----------
          the Company may terminate its obligations under the Notes and
          this Indenture if:

                    (i)  all Notes previously authenticated and delivered
               (other than destroyed, lost or stolen Notes that have been
               replaced or Notes that are paid pursuant to Section 4.01 or
               Notes for whose payment money or securities have theretofore
               been held in trust and thereafter repaid to the Company, as
               provided in Section 8.05) have been delivered to the Trustee
               for cancellation and the Company has paid all sums payable
               by it hereunder; or

                    (ii) (A) all the Notes mature within one year or all of
               them are to be called for redemption within one year under
               arrangements satisfactory to the Trustee for giving the
               notice of redemption, (B) the Company deposits in trust with
               the Trustee during such one-year period, under the terms of
               an irrevocable trust agreement in form and substance
               satisfactory to the Trustee, as trust funds solely for the
               benefit of the Holders for that purpose, money or U.S.
               Government Obligations sufficient (in the opinion of a
               nationally recognized firm of independent public accountants
               expressed in a written certification thereof delivered to
               the Trustee), without consideration of any reinvestment of
               any interest thereon, to pay principal, premium, if, any,
               and interest on the Notes to maturity or redemption, as the
               case may be, and to pay all other sums payable by it
               hereunder, (C) no Default or Event of Default with respect
               to the Notes shall have occurred and be continuing on the
               date of such deposit, (D) such deposit will not result in a
               breach or violation of, or constitute a default under, this
               Indenture or any other agreement or instrument to which the
               Company is a party or by which it is bound and (E) the
               Company has delivered to the Trustee an Officers'
               Certificate and an Opinion of Counsel, in each case stating
               that all conditions precedent provided for herein relating
               to the satisfaction and discharge of this Indenture have
               been complied with.

                    With respect to the foregoing clause (i), the Company's
          obligations under Section 7.07 shall survive.  With respect to
          the foregoing clause (ii), the Company's obligations in Sections
          2.02, 2.03, 2.04, 2.05, 2.06, 2.07, 2.08, 2.09, 2.14, 4.01, 4.02,
          7.07, 7.08, 8.04, 8.05 and 8.06 shall survive until the Notes are
          no longer outstanding.  Thereafter, only the Company's
          obligations in Sections 7.07, 8.05 and 8.06 shall survive.  After
          any such irrevocable deposit, the Trustee upon request shall
          acknowledge in writing the discharge of the Company's
          obligations, as the case may be, under the Notes and this
          Indenture except for those surviving obligations specified above.

                    SECTION 8.02.  Defeasance and Discharge of Indenture. 
                                   -------------------------------------
          The Company will be deemed to have paid and will be discharged
          from any and all obligations in respect of the Notes on the 123rd
          day after the deposit referred to below, and the provisions of
          this Indenture will no longer be in effect with respect to the
          Notes (except for, among other matters, certain obligations to
          register the transfer or exchange of the Notes, to replace
          stolen, lost or mutilated Notes, to maintain paying agencies and
          to hold monies for payment in trust) if, among other things,

                    (A)  the Company has deposited with the Trustee, in
               trust, money and/or U.S. Government Obligations that through
               the payment of interest and principal in respect thereof in
               accordance with their terms will provide money in an amount
               sufficient to pay the principal of, premium, if any, and
               accrued interest on the Notes on the Stated Maturity of such
               payments in accordance with the terms of this Indenture and
               the Notes;

                    (B)  the Company has delivered to the Trustee (i)
               either (x) an Opinion of Counsel to the effect that Holders
               will not recognize income, gain or loss for federal income
               tax purposes as a result of the Company's exercise of its
               option under this Section 8.02 and will be subject to
               federal income tax on the same amount and in the same manner
               and at the same times as would have been the case if such
               deposit, defeasance and discharge had not occurred, which
               Opinion of Counsel must be based upon (and accompanied by a
               copy of) a ruling of the Internal Revenue Service to the
               same effect unless there has been a change in applicable
               federal income tax law after the Closing Date such that a
               ruling is no longer required or (y) a ruling directed to the
               Trustee received from the Internal Revenue Service to the
               same effect as the aforementioned Opinion of Counsel and
               (ii) an Opinion of Counsel to the effect that the creation
               of the defeasance trust does not violate the Investment
               Company Act of 1940 and after the passage of 123 days
               following the deposit, the trust fund will not be subject to
               the effect of Section 547 of the United States Bankruptcy
               Code or Section 15 of the New York Debtor and Creditor Law;

                    (C)  immediately after giving effect to such deposit on
               a pro forma basis, no Event of Default, or event that after
               the giving of notice or lapse of time or both would become
               an Event of Default, shall have occurred and be continuing
               on the date of such deposit or during the period ending on
               the 123rd day after the date of such deposit, and such
               deposit shall not result in a breach or violation of, or
               constitute a default under, any other agreement or
               instrument to which the Company or any of its Subsidiaries
               is a party or by which the Company or any of its
               Subsidiaries is bound;

                    (D)  if at such time the Notes are listed on a national
               securities exchange, the Company has delivered to the
               Trustee an Opinion of Counsel to the effect that the Notes
               will not be delisted as a result of such deposit, defeasance
               and discharge, provided that if simultaneously with the 
                              --------
               deposit of the money and/or U.S. Government Obligations
               referred to in (A) above, the Company has caused an
               irrevocable, transferrable, standby letter of credit to be
               issued by a bank with capital and surplus exceeding the
               principal amount of the Notes then outstanding, expiring not
               earlier than 180 days from its issuance, in favor of the
               Trustee which permits the Trustee to draw an amount equal to
               the principal, premium, if any, and accrued interest on the
               Notes through the expiry date of the letter of credit, then
               the Company will be deemed to have paid and discharged any
               and all obligations in respect of the Notes on the date of
               the deposit and issuance of the letter of credit; and

                    (E)  the Company has delivered to the Trustee an
               Officers' Certificate and an Opinion of Counsel, in each
               case stating that all conditions precedent provided for
               herein relating to the defeasance contemplated by this
               Section 8.02 have been complied with.

                    Notwithstanding the foregoing, prior to the end of the
          123-day period referred to in clause (B)(ii) of this Section
          8.02, none of the Company's obligations under this Indenture
          shall be discharged.  Subsequent to the end of such 123-day
          period with respect to this Section 8.02, the Company's
          obligations in Sections 2.02, 2.03, 2.04, 2.05, 2.06, 2.07, 2.08,
          2.09, 2.14, 4.01, 4.02, 7.07, 7.08, 8.05 and 8.06 shall survive
          until the Notes are no longer outstanding.  Thereafter, only the
          Company's obligations in Sections 7.07, 8.05 and 8.06 shall
          survive.  If and when a ruling from the Internal Revenue Service
          or an Opinion of Counsel referred to in clause (B)(i) of this
          Section 8.02 may be provided specifically without regard to, and
          not in reliance upon, the continuance of the Company's
          obligations under Section 4.01, then the Company's obligations
          under such Section 4.01 shall cease upon delivery to the Trustee
          of such ruling or Opinion of Counsel and compliance with the
          other conditions precedent provided for herein relating to the
          defeasance contemplated by this Section 8.02.

                    After any such irrevocable deposit, the Trustee upon
          request shall acknowledge in writing the discharge of the
          Company's obligations under the Notes and this Indenture except
          for those surviving obligations in the immediately preceding
          paragraph.

                    SECTION 8.03.  Defeasance of Certain Obligations.  The
                                   ---------------------------------
          Company may omit to comply with any term, provision or condition
          set forth in clause (iii) of Section 5.01 and Sections 4.03
          through 4.18, and clause (c) of Section 6.01 with respect to
          clause (iii) of Section 5.01 and Sections 4.03 through 4.18, and
          clauses (c), (d), (e), (f) and (g) of Section 6.01 shall be
          deemed not to be Events of Default upon:

                    (a)  the deposit with the Trustee, in trust, of money
               and/or U.S. Government Obligations that through the payment
               of interest and principal in respect thereof in accordance
               with their terms will provide money in an amount sufficient
               to pay the principal of, premium, if any, and accrued
               interest on the Notes on the Stated Maturity of such
               payments in accordance with the terms of this Indenture and
               the Notes;

                    (b)  the satisfaction of the provisions described in
               clauses (B)(ii), (C) and (D) of Section 8.02 hereof;

                    (c)  the delivery by the Company to the Trustee of an
               Opinion of Counsel to the effect that the Holders will not
               recognize income, gain or loss for federal income tax
               purposes as a result of such deposit and defeasance and will
               be subject to federal income tax on the same amount and in
               the same manner and at the same times as would have been the
               case if such deposit and defeasance had not occurred; and

                    (d)  the Company has delivered to the Trustee an
               Officers' Certificate and an Opinion of Counsel, in each
               case stating that all conditions precedent provided for
               herein relating to the defeasance contemplated by this
               Section 8.03 have been complied with.

                    SECTION 8.04.  Application of Trust Money.  Subject to
                                   --------------------------
          Section 8.06, the Trustee or Paying Agent shall hold in trust
          money or U.S. Government Obligations deposited with it pursuant
          to Section 8.01, 8.02 or 8.03, as the case may be, and shall
          apply the deposited money and the money from U.S. Government
          Obligations in accordance with the Notes and this Indenture to
          the payment of principal of, premium, if any, and interest on the
          Notes; but such money need not be segregated from other funds
          except to the extent required by law.

                    SECTION 8.05.  Repayment to Company.  Subject to 
                                   --------------------
          Sections 7.07, 8.01, 8.02 and 8.03, the Trustee and the Paying
          Agent shall promptly pay to the Company upon request set forth in
          an Officers' Certificate any excess money held by them at any
          time and thereupon shall be relieved from all liability with
          respect to such money.  The Trustee and the Paying Agent shall
          pay to the Company upon request any money held by them for the
          payment of principal, premium, if any, or interest that remains
          unclaimed for two years; provided that the Trustee or such Paying
                                   --------
          Agent before being required to make any payment may cause to be
          published at the expense of the Company once in a newspaper of
          general circulation in the City of New York or mail to each
          Holder entitled to such money at such Holder's address (as set
          forth in the Note Register) notice that such money remains
          unclaimed and that after a date specified therein (which shall be
          at least 30 days from the date of such publication or mailing)
          any unclaimed balance of such money then remaining will be repaid
          to the Company.  After payment to the Company, Holders entitled
          to such money must look to the Company for payment as general
          creditors unless an applicable law designates another Person, and
          all liability of the Trustee and such Paying Agent with respect
          to such money shall cease.

                    SECTION 8.06.  Reinstatement.  If the Trustee or Paying
                                   -------------
          Agent is unable to apply any money or U.S. Government Obligations
          in accordance with Section 8.01, 8.02 or 8.03, as the case may
          be, by reason of any legal proceeding or by reason of any order
          or judgment of any court or governmental authority enjoining,
          restraining or otherwise prohibiting such application, the
          Company's obligations under this Indenture and the Notes shall be
          revived and reinstated as though no deposit had occurred pursuant
          to Section 8.01, 8.02 or 8.03, as the case may be, until such
          time as the Trustee or Paying Agent is permitted to apply all
          such money or U.S. Government Obligations in accordance with
          Section 8.01, 8.02 or 8.03, as the case may be; provided that, if
                                                          --------
          the Company has made any payment of principal of, premium, if
          any, or interest on any Notes because of the reinstatement of its
          obligations, the Company shall be subrogated to the rights of the
          Holders of such Notes to receive such payment from the money or
          U.S. Government Obligations held by the Trustee or Paying Agent.

                    SECTION 8.07.  Defeasance and Certain Other Events of 
                                   --------------------------------------
          Default.  In the event the Company exercises its option to omit 
          -------
          compliance with certain covenants and provisions of this
          Indenture with respect to the Notes pursuant to Section 8.03 and
          such Notes are declared due and payable because of the occurrence
          of an Event of Default that remains applicable, the amount of
          money and/or U.S. Government Obligations on deposit with the
          Trustee will be sufficient to pay amounts due on such Notes at
          the time of their Stated Maturity.  If, in the event the Company
          exercises its option to omit compliance with certain covenants
          and provisions of this Indenture with respect to the Notes
          pursuant to Section 8.03 and such Notes are declared due and
          payable because of the occurrence of an Event of Default that
          remains applicable, the amount of money and/or U.S. Government
          Obligations on deposit with the Trustee is insufficient to pay
          amounts due on the Notes at the time of the acceleration
          resulting from such Events of Default pursuant to Section 6.02,
          the Company will remain liable for such payments.


                                     ARTICLE NINE
                         AMENDMENTS, SUPPLEMENTS AND WAIVERS

                    SECTION 9.01.  Without Consent of Holders.  The 
                                   --------------------------
          Company, when authorized by resolutions of its Board of
          Directors, and the Trustee may amend or supplement this Indenture
          or the Notes without notice to, or the consent of, any Holder:

                    (i)  to cure any ambiguity, defect or inconsistency in
               this Indenture; provided that such amendments or supplements
                               --------
               shall not adversely affect the interests of the Holders in
               any material respect;

                    (ii)  to comply with Article Five;

                    (iii) to comply with any requirements of the
               Commission in connection with the qualification of this
               Indenture under the TIA;

                    (iv)  to evidence and provide for the acceptance of
               appointment hereunder by a successor Trustee; or

                    (v)   to make any change that, in the opinion of the
               Board of Directors of the Company evidenced by a Board
               Resolution, does not materially and adversely affect the
               rights of any Holder.

                    SECTION 9.02.  With Consent of Holders.  Subject to 
                                   -----------------------
          Sections 6.04 and 6.07 and without prior notice to the Holders,
          the Company, when authorized by its Board of Directors (as
          evidenced by a Board Resolution), and the Trustee may amend this
          Indenture and the Notes with the written consent of the Holders
          of a majority in aggregate principal amount at maturity of the
          Notes then outstanding, and the Holders of a majority in
          principal amount at maturity of the Notes then outstanding by
          written notice to the Trustee may waive future compliance by the
          Company with any provision of this Indenture or the Notes.

                    Notwithstanding the provisions of this Section 9.02,
          without the consent of each Holder affected thereby, an amendment
          or waiver, including a waiver pursuant to Section 6.04, may not:

                    (i)   change the Stated Maturity of the principal of, or
               any installment of interest on, any Note;

                    (ii)  reduce the Accreted Value or principal amount of,
               or premium, if any, or interest on, any Note;

                    (iii) change the place or currency of payment of
               principal of, or premium, if any, or interest on, any Note;

                    (iv)  impair the right to institute suit for the
               enforcement of any payment on or after the Stated Maturity
               (or, in the case of a redemption, on or after the Redemption
               Date) of any Note;

                    (v)   reduce the above-stated percentage in principal
               amount at maturity of outstanding Notes the consent of whose
               Holders is necessary to modify or amend this Indenture;

                    (vi)  waive a Default in the payment of principal of,
               premium, if any, or interest on, any Note; or

                    (vii) reduce the percentage or aggregate principal
               amount at maturity of outstanding Notes the consent of whose
               Holders is necessary for waiver of compliance with certain
               provisions of the Indenture or for waiver of certain
               defaults.

                    It shall not be necessary for the consent of the
          Holders under this Section 9.02 to approve the particular form of
          any proposed amendment, supplement or waiver, but it shall be
          sufficient if such consent approves the substance thereof.

                    After an amendment, supplement or waiver under this
          Section 9.02 becomes effective, the Company shall mail to the
          Holders affected thereby a notice briefly describing the
          amendment, supplement or waiver.  The Company will mail
          supplemental indentures to Holders upon request.  Any failure of
          the Company to mail such notice, or any defect therein, shall
          not, however, in any way impair or affect the validity of any
          such supplemental indenture or waiver.

                    SECTION 9.03.  Revocation and Effect of Consent.  Until
                                   --------------------------------
          an amendment or waiver becomes effective, a consent to it by a
          Holder is a continuing consent by the Holder and every subsequent
          Holder of a Note or portion of a Note that evidences the same
          debt as the Note of the consenting Holder, even if notation of
          the consent is not made on any Note.  However, any such Holder or
          subsequent Holder may revoke the consent as to its Note or
          portion of its Note.  Such revocation shall be effective only if
          the Trustee receives the notice of revocation before the date the
          amendment, supplement or waiver becomes effective.  An amendment,
          supplement or waiver shall become effective on receipt by the
          Trustee of written consents from the Holders of the requisite
          percentage in principal amount at maturity of the outstanding
          Notes.

                    The Company may, but shall not be obligated to, fix a
          record date for the purpose of determining the Holders entitled
          to consent to any amendment, supplement or waiver.  If a record
          date is fixed, then, notwithstanding the last two sentences of
          the immediately preceding paragraph, those Persons who were
          Holders at such record date (or their duly designated proxies)
          and only those Persons shall be entitled to consent to such
          amendment, supplement or waiver or to revoke any consent
          previously given, whether or not such Persons continue to be
          Holders after such record date.  No such consent shall be valid
          or effective for more than 90 days after such record date.

                    After an amendment, supplement or waiver becomes
          effective, it shall bind every Holder unless it is of the type
          described in any of clauses (i) through (iv) of Section 9.02.  In
          case of an amendment or waiver of the type described in clauses
          (i) through (iv) of Section 9.02, the amendment or waiver shall
          bind each Holder who has consented to it and every subsequent
          Holder of a Note that evidences the same indebtedness as the Note
          of the consenting Holder.

                    SECTION 9.04.  Notation on or Exchange of Notes.  If an
                                   --------------------------------
          amendment, supplement or waiver changes the terms of a Note, the
          Trustee may require the Holder to deliver it to the Trustee.  The
          Trustee may place an appropriate notation on the Note about the
          changed terms and return it to the Holder and the Trustee may
          place an appropriate notation on any Note thereafter
          authenticated.  Alternatively, if the Company or the Trustee so
          determines, the Company in exchange for the Note shall issue and
          the Trustee shall authenticate a new Note that reflects the
          changed terms.

                    SECTION 9.05.  Trustee to Sign Amendments, Etc.  The 
                                   --------------------------------
          Trustee shall be entitled to receive, and shall be fully
          protected in relying upon, an Opinion of Counsel stating that the
          execution of any amendment, supplement or waiver authorized
          pursuant to this Article Nine is authorized or permitted by this
          Indenture.  Subject to the preceding sentence, the Trustee shall
          sign such amendment, supplement or waiver if the same does not
          adversely affect the rights of the Trustee.  The Trustee may, but
          shall not be obligated to, execute any such amendment, supplement
          or waiver that affects the Trustee's own rights, duties or
          immunities under this Indenture or otherwise.

                    SECTION 9.06.  Conformity with Trust Indenture Act.  
                                   -----------------------------------
          Every supplemental indenture executed pursuant to this Article
          Nine shall conform to the requirements of the TIA as then in
          effect.


                                     ARTICLE TEN
                                    MISCELLANEOUS

                    SECTION 10.01.  Trust Indenture Act of 1939.  Prior to
                                    ---------------------------
          the effectiveness of the Registration Statement, this Indenture
          shall incorporate and be governed by the provisions of the TIA
          that are required to be part of and to govern indentures
          qualified under the TIA.  After the effectiveness of the
          Registration Statement, this Indenture shall be subject to the
          provisions of the TIA that are required to be a part of this
          Indenture and shall, to the extent applicable, be governed by
          such provisions.

                    SECTION 10.02.  Notices.  Any notice or communication 
                                    -------
          shall be sufficiently given if in writing and delivered in person
          or mailed by first class mail, commercial courier service or
          telecopier communication, addressed as follows:

                    if to the Company:
                    -----------------

                         ICG Services, Inc.
                         9605 East Maroon Circle
                         P.O. Box 6742
                         Englewood, Colorado  80155-6742
                         Attention:  Chief Financial Officer

                    if to the Trustee:
                    -----------------

                         Norwest Bank Colorado, N.A.
                         1740 Broadway
                         Denver, Colorado  80274-8693
                         Attention:  Corporate Trust and Escrow Services

                    The Company or the Trustee, by notice to the other may
          designate additional or different addresses for subsequent
          notices or communications.

                    Any notice or communication mailed to a Holder shall be
          mailed to him at his address as it appears on the Note Register
          by first class mail and shall be sufficiently given to him if so
          mailed within the time prescribed.  Copies of any such
          communication or notice to a Holder shall also be mailed to the
          Trustee and each Agent at the same time.

                    Failure to mail a notice or communication to a Holder
          or any defect in it shall not affect its sufficiency with respect
          to other Holders.  Except for a notice to the Trustee, which is
          deemed given only when received, and except as otherwise provided
          in this Indenture, if a notice or communication is mailed in the
          manner provided in this Section 10.02, it is duly given, whether
          or not the addressee receives it.

                    Where this Indenture provides for notice in any manner,
          such notice may be waived in writing by the Person entitled to
          receive such notice, either before or after the event, and such
          waiver shall be the equivalent of such notice.  Waivers of notice
          by Holders shall be filed with the Trustee, but such filing shall
          not be a condition precedent to the validity of any action taken
          in reliance upon such waiver.

                    In case by reason of the suspension of regular mail
          service or by reason of any other cause it shall be impracticable
          to give such notice by mail, then such notification as shall be
          made with the approval of the Trustee shall constitute a
          sufficient notification for every purpose hereunder.

                    SECTION 10.03.  Certificate and Opinion As to 
                                    -----------------------------
          Conditions Precedent.  Upon any request or application by the 
          --------------------
          Company to the Trustee to take any action under this Indenture,
          the Company shall furnish to the Trustee:

                    (i)  an Officers' Certificate stating that, in the
               opinion of the signers, all conditions precedent, if any,
               provided for in this Indenture relating to the proposed
               action have been complied with; and

                    (ii) an Opinion of Counsel stating that, in the opinion
               of such Counsel, all such conditions precedent have been
               complied with.

                    SECTION 10.04.  Statements Required in Certificate or 
                                    -------------------------------------
          Opinion.  Each certificate or opinion with respect to compliance
          -------
          with a condition or covenant provided for in this Indenture shall
          include:

                    (i)   a statement that each person signing such
               certificate or opinion has read such covenant or condition
               and the definitions herein relating thereto;

                    (ii)  a brief statement as to the nature and scope of
               the examination or investigation upon which the statement or
               opinion contained in such certificate or opinion is based;

                    (iii) a statement that, in the opinion of each such
               person, he has made such examination or investigation as is
               necessary to enable him to express an informed opinion as to
               whether or not such covenant or condition has been complied
               with; and

                    (iv)  a statement as to whether or not, in the opinion
               of each such person, such condition or covenant has been
               complied with; provided, however, that, with respect to 
                              --------  -------
               matters of fact, an Opinion of Counsel may rely on an
               Officers' Certificate or certificates of public officials.

                    SECTION 10.05.  Rules by Trustee, Paying Agent or 
                                    ---------------------------------
          Registrar.  The Trustee may make reasonable rules for action by 
          ---------
          or at a meeting of Holders.  The Paying Agent or Registrar may
          make reasonable rules for its functions.

                    SECTION 10.06.  Payment Date Other Than a Business Day. 
                                    --------------------------------------
          If an Interest Payment Date, Redemption Date, Payment Date,
          Stated Maturity or date of maturity of any Note shall not be a
          Business Day, then payment of principal of, premium, if any, or
          interest on such Note, as the case may be, need not be made on
          such date, but may be made on the next succeeding Business Day
          with the same force and effect as if made on the Interest Payment
          Date, Payment Date, or Redemption Date, or at the Stated Maturity
          or date of maturity of such Note; provided that no interest shall
                                            --------
          accrue for the period from and after such Interest Payment Date,
          Payment Date, Redemption Date, Stated Maturity or date of
          maturity, as the case may be.

                    SECTION 10.07.  Governing Law; Submission to 
                                    ----------------------------
          Jurisdiction.  This Indenture and the Notes shall be governed by
          ------------
          the laws of the State of New York.  The Company agrees to submit
          to the jurisdiction of any federal or state court located in the
          City of New York in any suit, action or proceeding with respect
          to this Indenture or the Notes and for actions brought under the
          U.S. federal or state securities laws brought in any such court.

                    SECTION 10.08.  No Adverse Interpretation of Other 
                                    ----------------------------------
          Agreements.  This Indenture may not be used to interpret another
          ----------
          indenture, loan or debt agreement of the Company or any
          Subsidiary of the Company.  Any such indenture, loan or debt
          agreement may not be used to interpret this Indenture.

                    SECTION 10.09.  No Recourse Against Others.  No 
                                    --------------------------
          recourse for the payment of the principal of, premium, if any, or
          interest on any of the Notes, or for any claim based thereon or
          otherwise in respect thereof, and no recourse under or upon any
          obligation, covenant or agreement of the Company contained in
          this Indenture, or in any of the Notes, or because of the
          creation of any Indebtedness represented thereby, shall be had
          against any incorporator or against any past, present or future
          partner, shareholder, other equityholder, officer, director,
          employee or controlling person, as such, of the Company or of any
          successor Person, either directly or through the Company or any
          successor Person, whether by virtue of any constitution, statute
          or rule of law, or by the enforcement of any assessment or
          penalty or otherwise; it being expressly understood that all such
          liability is hereby expressly waived and released as a condition
          of, and as a consideration for, the execution of this Indenture
          and the issue of the Notes.

                    SECTION 10.10.  Successors.  All agreements of the 
                                    ----------
          Company in this Indenture and the Notes shall bind its
          successors.  All agreements of the Trustee in this Indenture
          shall bind its successors.

                    SECTION 10.11.  Duplicate Originals.  The parties may 
                                    -------------------
          sign any number of copies of this Indenture.  Each signed copy
          shall be an original, but all of them together represent the same
          agreement.

                    SECTION 10.12.  Separability.  In case any provision in
                                    ------------
          this Indenture or in the Notes shall be invalid, illegal or
          unenforceable, the validity, legality and enforceability of the
          remaining provisions shall not in any way be affected or impaired
          thereby.

                    SECTION 10.13.  Table of Contents, Headings, Etc.  The
                                    ---------------------------------
          Table of Contents, Cross-Reference Table and headings of the
          Articles and Sections of this Indenture have been inserted for
          convenience of reference only, are not to be considered a part
          hereof and shall in no way modify or restrict any of the terms
          and provisions hereof.


          <PAGE>


                                      SIGNATURES

                    IN WITNESS WHEREOF, the parties hereto have caused this
          Indenture to be duly executed, all as of the date first written
          above.


                                           ICG SERVICES, INC.


                                           By: /s/ Don Teague
                                              -------------------------
                                              Name: H. Don Teague
                                              Title: Executive Vice President,
                                                     General Counsel and
                                                     Secretary





                                           NORWEST BANK COLORADO, N.A.
                                              as Trustee


                                           By:/s/ A. Lenore Martinez
                                              -------------------------
                                              Name: A. Lenore Martinez
                                              Title: Sr. Vice President


          <PAGE>


                                                                  EXHIBIT A
                                                                  ---------


                                    [FACE OF NOTE]

                                  ICG SERVICES INC.

                          10% Senior Discount Note Due 2008

                                                  [CUSIP] [CINS]           
                                                                 ----------


          No.                                                    $         
                                                                  ---------

                    The following information is supplied for purposes of
          Sections 1273 and 1275 of the Internal Revenue Code:

          Issue Date:  February 12, 1998

          Yield to maturity for period from Issue Date to February 15,
          2008:  10.00% , compounded semiannually on February 15 and August
          15 commencing February 15, 1998 (computed without giving effect
          to the additional payments of interest in the event the issuer
          fails to commence the exchange offer and fails to cause the shelf
          registration statement to be declared effective, each as referred
          to on the reverse hereof)

          Original issue discount under Section 1273 of the Internal
          Revenue Code (for each $1,000 principal amount at maturity):  
          $886.59

          Issue Price (for each $1,000 principal amount at maturity): 
          $613.41

                    ICG SERVICES, INC., a Delaware corporation (the
          "Company", which term includes any successor under the Indenture
          hereinafter referred to), for value received, promises to pay to
          [            ], or its registered assigns, the principal sum of
           ------------
          [     ] ($[     ]) on [          ], 2008.
           -----     -----       ----------

                    Interest Payment Dates:  February 15 and August 15,
          commencing August 15, 2003.

                    Regular Record Dates:  February 1 and August 1.


          <PAGE>


                    Reference is hereby made to the further provisions of
          this Note set forth on the reverse hereof, which further
          provisions shall for all purposes have the same effect as if set
          forth at this place.

                    IN WITNESS WHEREOF, the Company has caused this Note to
          be signed manually or by facsimile by its duly authorized
          officers.


          Date:  February 12, 1998      ICG SERVICES, INC.


                                        By:
                                           -------------------------------
                                           Name:
                                           Title:

                                        By:
                                           -------------------------------
                                           Name:
                                           Title:


                  (Form of Trustee's Certificate of Authentication)

          This is one of the 10% Senior Discount Notes due 2008 described
          in the within-mentioned Indenture.


                                        NORWEST BANK COLORADO,
                                        NATIONAL ASSOCIATION, as Trustee


                                        By:
                                           -------------------------------
                                                Authorized Signatory


          <PAGE>


                                [REVERSE SIDE OF NOTE]

                                  ICG SERVICES, INC.

                          10% Senior Discount Note due 2008



          1.   Principal and Interest.
               ----------------------

                    The Company will pay the principal of this 10% Senior
          Discount Note due 2008 (the "Note") on February 15, 2008.

                    The Company promises to pay interest on the principal
          amount of this Note on each Interest Payment Date, as set forth
          below, at the rate per annum shown above.

                    Interest will be payable semiannually (to the holders
          of record of the Notes at the close of business on the February 1
          or August 1 immediately preceding the Interest Payment Date) on
          each Interest Payment Date, commencing August 15, 2003; provided
                                                                  --------
          that no interest shall accrue on the principal amount of this
          Note prior to February 15, 2003 and no interest shall be paid on
          this Note prior to August 15, 2003, except as provided in the
          next paragraph.

                    If an exchange offer registered under the Securities
          Act is not consummated, and a shelf registration statement under
          the Securities Act with respect to resales of the Notes is not
          declared effective by the Commission, on or before August 12,
          1998 in accordance with the terms of the Registration Rights
          Agreement dated February 12, 1998 between the Company and Morgan
          Stanley & Co. Incorporated, interest (in addition to the accrual
          of original discount during the period ending February 15, 2003
          and in addition to the interest otherwise due on the Notes after
          such date) will accrue from August 12, 1998, at an annual rate of
          .5% of the Accreted Value on the preceding Semi-Annual Accrual
          Date, payable in cash semiannually, in arrears, on February 15
          and August 15 of each year, commencing February 15, 1999, until
          the exchange offer is consummated or the shelf registration
          statement is declared effective.  The Holder of this Note is
          entitled to the benefits of such Registration Rights Agreement.

                    From and after February 15, 2003, interest on the Notes
          will accrue from the most recent date to which interest has been
          paid or, if no interest has been paid, from February 15, 2003;
          provided that, if there is no existing default in the payment of
          --------
          interest and this Note is authenticated between a Regular Record
          Date referred to on the face hereof and the next succeeding
          Interest Payment Date, interest shall accrue from such Interest
          Payment Date.  Interest will be computed on the basis of a
          360-day year of twelve 30-day months.

                    The Company shall pay interest on overdue principal and
          premium, if any, and interest on overdue installments of
          interest, to the extent lawful, at a rate per annum that is 2% in
          excess of the rate otherwise payable.

          2.   Method of Payment.
               -----------------

                    The Company will pay principal as provided above and
          interest (except defaulted interest) on the principal amount of
          the Notes as provided above on each February 15 and August 15 to
          the Persons who are Holders (as reflected in the Note Register at
          the close of business on such February 1 and August 1 immediately
          preceding the Interest Payment Date), in each case, even if the
          Note is cancelled on registration of transfer or registration of
          exchange after such record date; provided that, with respect to 
                                           --------
          the payment of principal, the Company will not make payment to
          the Holder unless this Note is surrendered to a Paying Agent.

                    The Company will pay principal, premium, if any, and as
          provided above, interest in money of the United States that at
          the time of payment is legal tender for payment of public and
          private debts.  However, the Company may pay principal, premium,
          if any, and interest by its check payable in such money.  It may
          mail an interest check to a Holder's registered address (as
          reflected in the Note Register).  If a payment date is a date
          other than a Business Day at a place of payment, payment may be
          made at that place on the next succeeding day that is a Business
          Day and no interest shall accrue for the intervening period.

          3.   Paying Agent and Registrar.
               --------------------------

                    Initially, the Trustee will act as authenticating
          agent, Paying Agent and Registrar.  The Company may change any
          authenticating agent, Paying Agent or Registrar without notice. 
          The Company, any Subsidiary or any Affiliate of any of them may
          act as Paying Agent, Registrar or co-Registrar.

          4.   Indenture; Issuance of Additional Notes.
               ---------------------------------------

                    The Company issued the Notes under an Indenture dated
          as of February 12, 1998 (the "Indenture"), between the Company
          and Norwest Bank Colorado, N.A., as trustee (the "Trustee"). 
          Capitalized terms herein are used as defined in the Indenture
          unless otherwise indicated.  The terms of the Notes include those
          stated in the Indenture and those made part of the Indenture by
          reference to the Trust Indenture Act.  The Notes are subject to
          all such terms, and Holders are referred to the Indenture and the
          Trust Indenture Act for a statement of all such terms.  To the
          extent permitted by applicable law, in the event of any
          inconsistency between the terms of this Note and the terms of the
          Indenture, the terms of the Indenture shall control.

                    The Notes are general unsecured obligations of the
          Company.  The Company may, subject to Article Four of the
          Indenture, issue additional Notes under the Indenture.

          5.   Redemption.
               ----------

                    The Notes will be redeemable, at the Company's option,
          in whole or in part, at any time or from time to time, on or
          after February 15, 2003 and prior to maturity, upon not less than
          30 nor more than 60 days' prior notice mailed by first class mail
          to each Holder's last address as it appears in the Note Register,
          at the following Redemption Prices (expressed in percentages of
          their principal amount at maturity), plus accrued and unpaid
          interest, if any, to the Redemption Date (subject to the right of
          Holders of record on the relevant Regular Record Date that is on
          or prior to the Redemption Date to receive interest due on an
          Interest Payment Date), if redeemed during the 12-month period
          commencing February 15, of the years set forth below:

                      Year                     Redemption Price
                      ----                     ----------------
                      2003  . . . . . . . . .    105.0000%
                      2004  . . . . . . . . .    103.3333 
                      2005  . . . . . . . . .    101.6667 

                      2006 and thereafter . .    100.0000 

                    In addition, at any time or from time to time, on or
          prior to February 15, 2001, the Company may, at its option,
          redeem Notes having an aggregate principal amount at maturity of
          up to 35% of the aggregate principal amount at maturity of the
          Notes with the proceeds of one or more public or private Equity
          Offerings, at a Redemption Price equal to   110.0% of the
          Accreted Value thereof on the Redemption Date; provided that at
          least 65% of the aggregate principal amount of Notes initially
          issued remains outstanding after each such redemption.

          6.   Notice of Redemption.
               --------------------

                    Notice of any optional redemption will be mailed at
          least 30 days but not more than 60 days before the Redemption
          Date to each Holder of Notes to be redeemed at his last address
          as it appears in the Note Register.  Notes in original
          denominations larger than $1,000 of principal amount at maturity
          may be redeemed in part.  On and after the Redemption Date,
          interest ceases to accrue on Notes or portions of Notes called
          for redemption, unless the Company defaults in the payment of the
          Redemption Price.

          7.   Repurchase upon Change in Control.
               ---------------------------------

                    Upon the occurrence of any Change of Control, each
          Holder shall have the right to require the repurchase of its
          Notes by the Company in cash pursuant to the offer described in
          the Indenture at a purchase price equal to 101% of the Accreted
          Value thereof plus accrued and unpaid interest, if any, to the
          date of purchase (the "Change of Control Payment").

                    A notice of such Change of Control will be mailed
          within 30 days after any Change of Control occurs to each Holder
          at his last address as it appears in the Note Register.  Notes in
          original denominations larger than $1,000 of principal amount at
          maturity may be sold to the Company in part.  On and after the
          date of the Change of Control Payment, interest ceases to accrue
          on Notes or portions of Notes surrendered for purchase by the
          Company, unless the Company defaults in the payment of the Change
          of Control Payment.

          8.   Denominations; Transfer; Exchange.
               ---------------------------------

                    The Notes are in registered form without coupons in
          denominations of $1,000 of principal amount at maturity and
          multiples of $1,000 in excess thereof.  A Holder may register the
          transfer or exchange of Notes in accordance with the Indenture. 
          The Registrar may require a Holder, among other things, to
          furnish appropriate endorsements and transfer documents and to
          pay any taxes and fees required by law or permitted by the
          Indenture.  The Registrar need not register the transfer or
          exchange of any Notes selected for redemption.  Also, it need not
          register the transfer or exchange of any Notes for a period of 15
          days before a selection of Notes to be redeemed is made.

          9.   Persons Deemed Owners.
               ---------------------

                    A Holder shall be treated as the owner of a Note for
          all purposes.

          10.  Unclaimed Money.
               ---------------

                    If money for the payment of principal, premium, if any,
          or interest remains unclaimed for two years, the Trustee and the
          Paying Agent will pay the money back to the Company at its
          request.  After that, Holders entitled to the money must look to
          the Company for payment, unless an abandoned property law
          designates another Person, and all liability of the Trustee and
          such Paying Agent with respect to such money shall cease.

          11.  Discharge Prior to Redemption or Maturity.
               -----------------------------------------

                    If the Company deposits with the Trustee money and/or
          U.S. Government Obligations sufficient to pay the then
          outstanding principal of, premium, if any, and accrued interest
          on the Notes (a) to redemption or maturity, the Company will be
          discharged from the Indenture and the Notes, except in certain
          circumstances for certain sections thereof, and (b) or to Stated
          Maturity, the Company will be discharged from certain covenants
          set forth in the Indenture.

          12.  Amendment; Supplement; Waiver.
               -----------------------------

                    Subject to certain exceptions, the Indenture or the
          Notes may be amended or supplemented with the consent of the
          Holders of at least a majority in principal amount at maturity of
          the Notes then outstanding, and any existing default or
          compliance with any provision may be waived with the consent of
          the Holders of at least a majority in principal amount at
          maturity of the Notes then outstanding.  Without notice to or the
          consent of any Holder, the parties thereto may amend or
          supplement the Indenture or the Notes to, among other things,
          cure any ambiguity, defect or inconsistency and make any change
          that does not materially and adversely affect the rights of any
          Holder.

          13.  Restrictive Covenants.
               ---------------------

                    The Indenture imposes certain limitations on the
          ability of the Company and its Restricted Subsidiaries, among
          other things, to Incur Indebtedness, make Restricted Payments,
          use the proceeds from Asset Sales, engage in transactions with
          Affiliates or, with respect to the Company, merge, consolidate or
          transfer substantially all of its assets.  Within 90 days after
          the end of the last fiscal quarter of each year, the Company must
          report to the Trustee on compliance with the terms of the
          Indenture.

          14.  Successor Persons.
               -----------------

                    When a successor Person or other entity assumes all the
          obligations of its predecessor under the Notes and the Indenture,
          the predecessor Person will be released from those obligations.

          15.  Defaults and Remedies.
               ---------------------

                    The following events constitute "Events of Default"
          under the Indenture:  (a) default in the payment of principal of
          (or premium, if any, on) any Note when the same becomes due and
          payable at maturity, upon acceleration, redemption or otherwise;
          (b) default in the payment of interest on any Note when the same
          becomes due and payable, and such default continues for a period
          of 30 days; (c) the Company defaults in the performance of or
          breaches any other covenant or agreement of the Company in the
          Indenture or under the Notes (other than a default specified in
          clause (a) or (b) above) and such default or breach continues for
          a period of 30 consecutive days after written notice by the
          Trustee or the Holders of 25% or more in aggregate principal
          amount of the Notes; (d) the Company fails to make or consummate
          an Offer to Purchase in accordance with Section 4.11 of the
          Indenture; (e) the Company fails to make or consummate an Offer
          to Purchase in accordance with Section 4.12 of the Indenture; (f)
          there occurs with respect to any issue or issues of Indebtedness
          of the Company or any Significant Subsidiary having an
          outstanding principal amount of $10 million or more in the
          aggregate for all such issues of all such Persons, whether such
          Indebtedness now exists or shall hereafter be created, (I) an
          event of default that has caused the holder thereof to declare
          such Indebtedness to be due and payable prior to its Stated
          Maturity and such Indebtedness has not been discharged in full or
          such acceleration has not been rescinded or annulled within 30
          days of such acceleration and/or (II) the failure to make a
          principal payment at the final (but not any interim) fixed
          maturity and such defaulted payment shall not have been made,
          waived or extended within 30 days of such payment default; (g)
          any final judgment or order (not covered by insurance) for the
          payment of money in excess of $10 million in the aggregate
          (treating any deductibles, self-insurance or retention as not so
          covered) shall be rendered against the Company or any Significant
          Subsidiary and shall not be paid or discharged, and there shall
          be any period of 30 consecutive days following entry of the final
          judgment or order that causes the aggregate amount for all such
          final judgments or orders outstanding and not paid or discharged
          against the Company or any of its Significant Subsidiaries to
          exceed $10 million during which a stay of enforcement of such
          final judgment or order, by reason of a pending appeal or
          otherwise, shall not be in effect; (h) a court having
          jurisdiction in the premises enters a decree or order for (A)
          relief in respect of the Company or any Significant Subsidiary in
          an involuntary case under any applicable bankruptcy, insolvency
          or other similar law now or hereafter in effect, (B) appointment
          of a receiver, liquidator, assignee, custodian, trustee,
          sequestrator or similar official of the Company or any
          Significant Subsidiary or for all or substantially all of the
          property and assets of the Company or any Significant Subsidiary
          or (C) the winding up or liquidation of the affairs of the
          Company or any Significant Subsidiary and, in each case, such
          decree or order shall remain unstayed and in effect for a period
          of 30 consecutive days; or (i) the Company or any Significant
          Subsidiary (A) commences a voluntary case under any applicable
          bankruptcy, insolvency or other similar law now or hereafter in
          effect, or consents to the entry of an order for relief in an
          involuntary case under any such law, (B) consents to the
          appointment of or taking possession by a receiver, liquidator,
          assignee, custodian, trustee, sequestrator or similar official of
          the Company or any Significant Subsidiary or for all or
          substantially all of the property and assets of the Company or
          any Significant Subsidiary or (C) effects any general assignment
          for the benefit of creditors.

                    If an Event of Default (other than an Event of Default
          specified in clause (h) or (i) above that occurs with respect to
          the Company) occurs and is continuing under the Indenture, the
          Trustee or the Holders of at least 25% in aggregate principal
          amount at maturity of the Notes, then outstanding, by written
          notice to the Company (and to the Trustee if such notice is given
          by the Holders), may, and the Trustee at the request of such
          Holders shall, declare the Accreted Value of, premium, if any,
          and accrued interest, if any, on the Notes to be immediately due
          and payable.

                    If an Event of Default occurs and is continuing, the
          Trustee or the Holders of at least 25% in aggregate principal
          amount at maturity of the Notes then outstanding may declare all
          the Notes to be due and payable.  If a bankruptcy or insolvency
          default with respect to the Company or any Restricted Subsidiary
          occurs and is continuing, the Notes automatically become due and
          payable.  Holders may not enforce the Indenture or the Notes
          except as provided in the Indenture.  The Trustee may require
          indemnity satisfactory to it before it enforces the Indenture or
          the Notes.  Subject to certain limitations, Holders of at least a
          majority in principal amount at maturity of the Notes then
          outstanding may direct the Trustee in its exercise of any trust
          or power.

          16.  Trustee Dealings with Company.
               -----------------------------

                    The Trustee under the Indenture, in its individual or
          any other capacity, may make loans to, accept deposits from and
          perform services for the Company or its Affiliates and may
          otherwise deal with the Company or its Affiliates as if it were
          not the Trustee.

          17.  No Recourse Against Others.
               --------------------------

                    No incorporator or any past, present or future partner,
          stockholder, other equity holder, officer, director, employee or
          controlling person as such, of the Company or of any successor
          Person shall have any liability for any obligations of the
          Company under the Notes or the Indenture or for any claim based
          on, in respect of or by reason of, such obligations or their
          creation.  Each Holder by accepting a Note waives and releases
          all such liability.  The waiver and release are part of the
          consideration for the issuance of the Notes.

          18.  Authentication.
               --------------

                    This Note shall not be valid until the Trustee or
          authenticating agent signs the certificate of authentication on
          the other side of this Note.

          19.  Abbreviations.
               -------------

                    Customary abbreviations may be used in the name of a
          Holder or an assignee, such as:  TEN COM (= tenants in common),
          TEN ENT (= tenants by the entireties), JT TEN (= joint tenants
          with right of survivorship and not as tenants in common), CUST
          (= Custodian) and U/G/M/A (= Uniform Gifts to Minors Act).

               THIS NOTE SHALL BE GOVERNED BY THE LAWS OF THE STATE OF NEW
          YORK.

                    The Company will furnish to any Holder upon written
          request and without charge a copy of the Indenture.  Requests may
          be made to ICG Services, Inc., 9605 East Maroon Circle, P.O. Box
          6742, Englewood, Colorado, 80155-6742, Attention:  Chief
          Financial Officer.


          <PAGE>


                              [FORM OF TRANSFER NOTICE]


                    FOR VALUE RECEIVED the undersigned registered holder
          hereby sell(s), assign(s) and transfer(s) unto

          Insert Taxpayer Identification No.
          ---------------------------------

          -----------------------------------------------------------------
          Please print or typewrite name and address including zip code of
          assignee 
                   --------------------------------------------------------
          the within Note and all rights thereunder, hereby irrevocably
          constituting and appointing 
                                      -------------------------------------
          attorney to transfer said Note on the books of the Company with
          full power of substitution in the premises.


                       [THE FOLLOWING PROVISION TO BE INCLUDED
                       ON ALL NOTES OTHER THAN EXCHANGE NOTES,
                         UNLEGENDED OFFSHORE GLOBAL NOTES AND
                       UNLEGENDED OFFSHORE CERTIFICATED NOTES]

               In connection with any transfer of this Note occurring prior
          to the date which is the earlier of (i) the date of an effective
          Registration or (ii) the end of the period referred to in Rule
          144(k) under the Securities Act, the undersigned confirms that
          without utilizing any general solicitation or general advertising
          that:

                                     [Check One]
                                      ---------

          [  ] (a)  this Note is being transferred in compliance with the
                    exemption from registration under the Securities Act of
                    1933, as amended, provided by Rule 144A thereunder.

                                          or
                                          --

          [  ] (b)  this Note is being transferred other than in accordance
                    with (a) above and documents are being furnished which
                    comply with the conditions of transfer set forth in
                    this Note and the Indenture.

          If none of the foregoing boxes is checked, the Trustee or other
          Registrar shall not be obligated to register this Note in the
          name of any Person other than the Holder hereof unless and until
          the conditions to any such transfer of registration set forth
          herein and in Section 2.08 of the Indenture shall have been
          satisfied.

          Date:
               -----------------   ----------------------------------------
                                   NOTICE:  The signature to this
                                   assignment must correspond with the name
                                   as written upon the face of the within-
                                   mentioned instrument in every
                                   particular, without alteration or any
                                   change whatsoever.



          TO BE COMPLETED BY PURCHASER IF (a) ABOVE IS CHECKED.

               The undersigned represents and warrants that it is
          purchasing this Note for its own account or an account with
          respect to which it exercises sole investment discretion and that
          it and any such account is a "qualified institutional buyer"
          within the meaning of Rule 144A under the Securities Act of 1933,
          as amended, and is aware that the sale to it is being made in
          reliance on Rule 144A and acknowledges that it has received such
          information regarding the Company as the undersigned has
          requested pursuant to Rule 144A or has determined not to request
          such information and that it is aware that the transferor is
          relying upon the undersigned's foregoing representations in order
          to claim the exemption from registration provided by Rule 144A.

          Dated:
                ---------------------   -----------------------------------
                                        NOTICE:  To be executed by an
                                        executive officer


          <PAGE>


                          OPTION OF HOLDER TO ELECT PURCHASE


                    If you wish to have this Note purchased by the Company
          pursuant to Section 4.11 or Section 4.12 of the Indenture, check
          the Box:  [  ]

                    If you wish to have a portion of this Note purchased by
          the Company pursuant to Section 4.11 or Section 4.12 of the
          Indenture, state the amount (in principal amount at maturity):
          $                   .
           -------------------

          Date:
               ---------------

          Your Signature:
                          -------------------------------------------------
                                (Sign exactly as your name appears on
                                      the other side of this Note)

          Signature Guarantee:
                                ----------------------------------


          <PAGE>


                                                                  Exhibit B
                                                                  ---------


                                 Form of Certificate
                                 -------------------



          Norwest Bank Colorado, N.A.                                , 19  
          1740 Broadway                                ----------- --    --
          Denver, Colorado 80274-8693
          Attention:  Corporate Trust and Escrow Services

                    Re:  ICG Services, Inc. (the "Company")
                         10% Senior Discount Notes due 2008 (the "Notes")
                         ------------------------------------------------

          Ladies and Gentlemen:

                    This letter relates to U.S. $                principal
                                                 ---------------
          amount at maturity of Notes represented by a Note (the "Legended
          Note") which bears a legend outlining restrictions upon transfer
          of such Legended Note.  Pursuant to Section 2.02 of the Indenture
          (the "Indenture") dated as of February 12, 1998 relating to the
          Notes, we hereby certify that we are (or we will hold such Notes
          on behalf of) a person outside the United States to whom the
          Notes could be transferred in accordance with Rule 904 of
          Regulation S promulgated under the U.S. Securities Act of 1933,
          as amended.  Accordingly, you are hereby requested to exchange
          the legended certificate for an unlegended certificate
          representing an identical principal amount at maturity of Notes,
          all in the manner provided for in the Indenture.

                    You and the Company are entitled to rely upon this
          letter and are irrevocably authorized to produce this letter or a
          copy hereof to any interested party in any administrative or
          legal proceedings or official inquiry with respect to the matters
          covered hereby.  Terms used in this certificate have the meanings
          set forth in Regulation S.

                                             Very truly yours,

                                             [Name of Holder]



                                             By:
                                                ---------------------------
                                                    Authorized Signature


          <PAGE>


                                                                  Exhibit C
                                                                  ---------



                         Form of Certificate to Be Delivered
                             in Connection with Transfers
                               Pursuant to Regulation S
                         -----------------------------------



          Norwest Bank Colorado, N.A.                                , 19  
          1740 Broadway                                 ---------- --    --
          Denver, Colorado 80274-8693
          Attention:  Corporate Trust and Escrow Services


                    Re:  ICG Services, Inc. (the "Company")
                         10% Senior Discount Notes due 2008 (the "Notes")
                         ------------------------------------------------

          Ladies and Gentlemen:

                    In connection with our proposed sale of U.S.$          
                                                                 ----------
          aggregate principal amount at maturity of the Notes, we confirm
          that such sale has been effected pursuant to and in accordance
          with Regulation S under the Securities Act of 1933, as amended,
          and, accordingly, we represent that:

                    (1)  the offer of the Notes was not made to a person in
          the United States;

                    (2)  at the time the buy order was originated, the
               transferee was outside the United States or we and any
               person acting on our behalf reasonably believed that the
               transferee was outside the United States;

                    (3)  no directed selling efforts have been made by us
               in the United States in contravention of the requirements of
               Rule 903(b) or Rule 904(b) of Regulation S, as applicable;
               and

                    (4)  the transaction is not part of a plan or scheme to
               evade the registration requirements of the U.S. Securities
               Act of 1933.

                    You and the Company are entitled to rely upon this
          letter and are irrevocably authorized to produce this letter or a
          copy hereof to any interested party in any administrative or
          legal proceedings or official inquiry with respect to the matters
          covered hereby.  Terms used in this certificate have the meanings
          set forth in Regulation S.

                                   Very truly yours,

                                   [Name of Transferor]


                                   By:
                                      -------------------------------------
                                               Authorized Signature


          <PAGE>


                                                                  Exhibit D
                                                                  ---------


                              Form of Certificate to Be
                             Delivered in Connection with
                      Transfers to Non-QIB Accredited Investors
                      -----------------------------------------

                                                                           


          Norwest Bank Colorado, N.A.                                , 19  
          1740 Broadway                                  ------------    --
          Denver, Colorado 80274-8693
          Attention:  Corporate Trust and Escrow Services

                    Re:  ICG Services, Inc. (the "Company")
                         10% Senior Discount Notes due 2008 (the "Notes")
                         ------------------------------------------------

          Dear Sirs:

                    In connection with our proposed purchase of
          $            aggregate principal amount of the Notes, we confirm  
           -----------
          that:

                    1.   We understand that any subsequent transfer of the
               Notes is subject to certain restrictions and conditions set
               forth in the Indenture dated as of February 12, 1998
               relating to the Notes (the "Indenture") and the undersigned
               agrees to be bound by, and not to resell, pledge or
               otherwise transfer the Notes except in compliance with, such
               restrictions and conditions and the Securities Act of 1933,
               as amended (the "Securities Act").

                    2.   We understand that the offer and sale of the Notes
               have not been registered under the Securities Act, and that
               the Notes may not be offered or sold except as permitted in
               the following sentence.  We agree, on our own behalf and on
               behalf of any accounts for which we are acting as
               hereinafter stated, that if we should sell any Notes, we
               will do so only (A) to the Company or any subsidiary
               thereof, (B) in accordance with Rule 144A under the
               Securities Act to a "qualified institutional buyer" (as
               defined therein), (C) to an institutional "accredited
               investor" (as defined below) that, prior to such transfer,
               furnishes (or has furnished on its behalf by a U.S. broker-
               dealer) to you and to the Company a signed letter
               substantially in the form of this letter, (D) outside the
               United States in accordance with Rule 904 of Regulation S
               under the Securities Act, (E) pursuant to the provisions of
               Rule 144 under the Securities Act, or (F) pursuant to an
               effective registration statement under the Securities Act,
               and we further agree to provide to any person purchasing any
               of the Notes from us a notice advising such purchaser that
               resales of the Notes are restricted as stated herein.

                    3.   We understand that, on any proposed resale of any
               Notes, we will be required to furnish to you and the Company
               such certifications, legal opinions and other information as
               you and the Company may reasonably require to confirm that
               the proposed sale complies with the foregoing restrictions. 
               We further understand that the Notes purchased by us will
               bear a legend to the foregoing effect.

                    4.   We are an institutional "accredited investor" (as
               defined in Rule 501(a)(1), (2), (3) or (7) of Regulation D
               under the Securities Act) and have such knowledge and
               experience in financial and business matters as to be
               capable of evaluating the merits and risks of our investment
               in the Notes, and we and any accounts for which we are
               acting are each able to bear the economic risk of our or its
               investment.

                    5.   We are acquiring the Notes purchased by us for our
               own account or for one or more accounts (each of which is an
               institutional "accredited investor") as to each of which we
               exercise sole investment discretion.

                    You and the Company are entitled to rely upon this
          letter and are irrevocably authorized to produce this letter or a
          copy hereof to any interested party in any administrative or
          legal proceedings or official inquiry with respect to the matters
          covered hereby.

                                             Very truly yours,

                                             [Name of Transferee]


                                             By:
                                                ---------------------------
                                                    Authorized Signature





          -----------------------------------------------------------------






                            REGISTRATION RIGHTS AGREEMENT





                               Dated February 12, 1998





                                       between




                                  ICG SERVICES, INC.




                                         and



                          MORGAN STANLEY & CO. INCORPORATED







          -----------------------------------------------------------------


     <PAGE>


                            REGISTRATION RIGHTS AGREEMENT



                    THIS REGISTRATION RIGHTS AGREEMENT (the "Agreement") is
          made and entered into February 12, 1998, between ICG SERVICES,
          INC., a Delaware corporation (the "Company"), and MORGAN STANLEY
          & CO. INCORPORATED (the "Placement Agent").

                    This Agreement is made pursuant to the Placement
          Agreement dated February 9, 1998, among the Company, NETCOM On-
          Line Communication Services, Inc. and the Placement Agent (the
          "Placement Agreement"), which provides for the sale by the
          Company to the Placement Agent of an aggregate of $490,000,000
          principal amount at maturity of the Company's 10% Senior Discount
          Notes due 2008 (the "Securities").  In order to induce the
          Placement Agent to enter into the Placement Agreement, the
          Company has agreed to provide to the Placement Agent and its
          direct and indirect transferees the registration rights set forth
          in this Agreement.  The execution of this Agreement is a
          condition to the closing under the Placement Agreement.

                    In consideration of the foregoing, the parties hereto
          agree as follows:

                    1.   Definitions.
                         -----------

                    As used in this Agreement, the following capitalized
          defined terms shall have the following meanings:

                    "1933 Act" shall mean the Securities Act of 1933, as
                     --------
               amended from time to time.

                    "1934 Act" shall mean the Securities Exchange Act of
                     --------
               1934, as amended from time to time.

                    "Accreted Value" shall have the meaning set forth in
                     --------------
               the Indenture.

                    "Closing Date" shall mean the Closing Date as defined
                     ------------
               in the Placement Agreement.

                    "Company" shall have the meaning set forth in the
                     -------
               preamble to this Agreement and shall also include the
               Company's successors.

                    "Exchange Offer" shall mean the exchange offer by the
                     --------------
               Company of Exchange Securities for Registrable Securities
               pursuant to Section 2(a) hereof.

                    "Exchange Offer Registration" shall mean a registration
                     ---------------------------
               under the 1933 Act effected pursuant to Section 2(a) hereof.

                    "Exchange Offer Registration Statement" shall mean an
                     -------------------------------------
               exchange offer registration statement on Form S-4 (or, if
               applicable, on another appropriate form) and all amendments
               and supplements to such registration statement, in each case
               including the Prospectus contained therein, all exhibits
               thereto and all material incorporated by reference therein.

                    "Exchange Securities" shall mean securities issued by
                     -------------------
               the Company under the Indenture containing terms identical
               to the Securities (except that (i) interest thereon shall
               accrue from the last date on which interest was paid on the
               Securities or, if no such interest has been paid, from
               February 15, 2003 and (ii) the Exchange Securities will not
               provide for an increase in the rate of interest and will not
               contain terms with respect to transfer restrictions) and to
               be offered to Holders of Securities in exchange for
               Securities pursuant to the Exchange Offer.

                    "Holder" shall mean the Placement Agent, for so long as
                     ------
               it owns any Registrable Securities, and each of its
               successors, assigns and direct and indirect transferees who
               become registered owners of Registrable Securities under the
               Indenture; provided that, for purposes of Sections 4 and 5
                          --------
               of this Agreement, the term "Holder" shall include
               Participating Broker-Dealers (as defined in Section 4(a)).

                    "Indenture" shall mean the Indenture relating to the
                     ---------
               Securities to be dated as of the Closing Date between the
               Company and Norwest Bank Colorado, National Association,
               trustee, and as the same may be amended from time to time in
               accordance with the terms thereof.

                    "Majority Holders" shall mean the Holders of a majority
                     ----------------
               of the aggregate principal amount of outstanding Registrable
               Securities; provided that, whenever the consent or approval
               of Holders of a specified percentage of Registrable
               Securities is required hereunder, Registrable Securities
               held by the Company or any of its affiliates (as such term
               is defined in Rule 405 under the 1933 Act) (other than the
               Placement Agent or subsequent holders of Registrable
               Securities if such subsequent holders are deemed to be such
               affiliates solely by reason of their holding of such
               Registrable Securities) shall not be counted in determining
               whether such consent or approval was given by the Holders of
               such required percentage or amount.

                    "Person" shall mean an individual, partnership,
                     ------
               corporation, trust or unincorporated organization, or a
               government or agency or political subdivision thereof.

                    "Placement Agent" shall have the meaning set forth in
                     ---------------
               the preamble to this Agreement.

                    "Placement Agreement" shall have the meaning set forth
                     -------------------
               in the preamble.

                    "Prospectus" shall mean the prospectus included in a
                     ----------
               Registration Statement, including any preliminary
               prospectus, and any such prospectus as amended or
               supplemented by any prospectus supplement, including a
               prospectus supplement with respect to the terms of the
               offering of any portion of the Registrable Securities
               covered by a Shelf Registration Statement, and by all other
               amendments and supplements to such prospectus, and in each
               case including all material incorporated by reference
               therein.

                    "Registrable Securities" shall mean the Securities;
                     ----------------------
               provided, however, that the Securities shall cease to be
               --------  -------
               Registrable Securities (i) when a Registration Statement
               with respect to such Securities shall have been declared
               effective under the 1933 Act and such Securities shall have
               been disposed of pursuant to such Registration Statement,
               (ii) when such Securities have been sold to the public
               pursuant to Rule 144(k) (or any similar provision then in
               force, but not Rule 144A) under the 1933 Act or (iii) when
               such Securities shall have ceased to be outstanding.

                    "Registration Expenses" shall mean any and all expenses
                     ---------------------
               incident to performance of or compliance by the Company with
               this Agreement, including without limitation:  (i) all SEC,
               stock exchange or National Association of Securities
               Dealers, Inc. registration and filing fees, (ii) all fees
               and expenses incurred in connection with compliance with
               state securities or blue sky laws (including reasonable fees
               and disbursements of counsel for any underwriters or Holders
               in connection with blue sky qualification of any of the
               Exchange Securities or Registrable Securities), (iii) all
               expenses of any Persons in preparing or assisting in
               preparing, word processing, printing and distributing any
               Registration Statement, any Prospectus, any amendments or
               supplements thereto, any underwriting agreements, securities
               sales agreements and other documents relating to the
               performance of and compliance with this Agreement, (iv) all
               rating agency fees, (v) all fees and disbursements relating
               to the qualification of the Indenture under applicable
               securities laws, (vi) the fees and disbursements of the
               Trustee and its counsel, (vii) the fees and disbursements of
               counsel for the Company and, in the case of a Shelf
               Registration Statement, the fees and disbursements of one
               counsel for the Holders (which counsel shall be selected by
               the Majority Holders and which counsel may also be counsel
               for the Placement Agent) and (viii) the fees and
               disbursements of the independent public accountants of the
               Company, including the expenses of any special audits or
               "cold comfort" letters required by or incident to such
               performance and compliance, but excluding fees and expenses
               of counsel to the underwriters (other than fees and expenses
               set forth in clause (ii) above) or the Holders and
               underwriting discounts and commissions and transfer taxes,
               if any, relating to the sale or disposition of Registrable
               Securities by a Holder.

                    "Registration Statement" shall mean any registration
                     ----------------------
               statement of the Company that covers any of the Exchange
               Securities or Registrable Securities pursuant to the
               provisions of this Agreement and all amendments and
               supplements to any such Registration Statement, including
               post-effective amendments, in each case including the
               Prospectus contained therein, all exhibits thereto and all
               material incorporated by reference therein.

                    "SEC" shall mean the Securities and Exchange
                     ---
               Commission.

                    "Shelf Registration" shall mean a registration effected
                     ------------------
               pursuant to Section 2(b) hereof.

                    "Shelf Registration Statement" shall mean a "shelf"
                     ----------------------------
               registration statement of the Company pursuant to the
               provisions of Section 2(b) of this Agreement which covers
               all of the Registrable Securities (but no other securities
               unless approved by the Holders whose Registrable Securities
               are covered by such Shelf Registration Statement) on an
               appropriate form under Rule 415 under the 1933 Act, or any
               similar rule that may be adopted by the SEC, and all
               amendments and supplements to such registration statement,
               including post-effective amendments, in each case including
               the Prospectus contained therein, all exhibits thereto and
               all material incorporated by reference therein.

                    "Trustee" shall mean the trustee with respect to the
                     -------
               Securities under the Indenture.

                    "Underwritten Registration" or "Underwritten Offering"
                     -------------------------      ---------------------
               shall mean a registration in which Registrable Securities
               are sold to an Underwriter (as hereinafter defined) for
               reoffering to the public.

                    2.   Registration Under the 1933 Act.
                         -------------------------------

                    (a)  To the extent not prohibited by any applicable law
          or applicable interpretation of the Staff of the SEC, the Company
          shall use its best efforts to cause to be filed an Exchange Offer
          Registration Statement covering the offer by the Company to the
          Holders to exchange all of the Registrable Securities for
          Exchange Securities and to have such Registration Statement
          declared effective by the SEC and remain effective until the
          closing of the Exchange Offer.  The Company shall commence the
          Exchange Offer promptly after the Exchange Offer Registration
          Statement has been declared effective by the SEC and use its best
          efforts to have the Exchange Offer consummated on or prior to
          August 12, 1998.  The Company shall commence the Exchange Offer
          by mailing the related exchange offer Prospectus and accompanying
          documents to each Holder stating, in addition to such other
          disclosures as are required by applicable law:

                    (i)  that the Exchange Offer is being made pursuant to
               this Agreement and that all Registrable Securities validly
               tendered will be accepted for exchange;

                    (ii) the dates of acceptance for exchange (which shall
               be a period of at least 20 business days from the date such
               notice is mailed) (the "Exchange Dates");

                    (iii)     that any Registrable Security not tendered
               will remain outstanding and continue to accrete in value
               (until February 15, 2003 and thereafter will accrue
               interest) but will not retain any rights under this
               Agreement;

                    (iv) that Holders electing to have a Registrable
               Security exchanged pursuant to the Exchange Offer will be
               required to surrender such Registrable Security, together
               with the enclosed letters of transmittal, to the institution
               and at the address (located in the Borough of Manhattan, The
               City of New York) specified in the notice prior to the close
               of business on the last Exchange Date; and

                    (v)  that Holders will be entitled to withdraw their
               election, not later than the close of business on the last
               Exchange Date, by sending to the institution and at the
               address (located in the Borough of Manhattan, The City of
               New York) specified in the notice a telegram, telex,
               facsimile transmission or letter setting forth the name of
               such Holder, the principal amount of Registrable Securities
               delivered for exchange and a statement that such Holder is
               withdrawing his election to have such Securities exchanged.

                    As soon as practicable after the last Exchange Date,
          the Company shall:

                    (i)  accept for exchange Registrable Securities or
               portions thereof tendered and not validly withdrawn pursuant
               to the Exchange Offer; and

                    (ii) deliver, or cause to be delivered, to the Trustee
               for cancellation all Registrable Securities or portions
               thereof so accepted for exchange by the Company and issue,
               and cause the Trustee to promptly authenticate and mail to
               each Holder, an Exchange Security equal in principal amount
               to the principal amount of the Registrable Securities
               surrendered by such Holder.

          The Company shall use its best efforts to complete the Exchange
          Offer as provided above and shall comply with the applicable
          requirements of the 1933 Act, the 1934 Act and other applicable
          laws and regulations in connection with the Exchange Offer.  The
          Exchange Offer shall not be subject to any conditions, other than
          that the Exchange Offer does not violate applicable law or any
          applicable interpretation of the Staff of the SEC.  The Company
          shall inform the Placement Agent of the names and addresses of
          the Holders to whom the Exchange Offer is made, and the Placement
          Agent shall have the right, subject to applicable law, to contact
          such Holders and otherwise facilitate the tender of Registrable
          Securities in the Exchange Offer.

                    (b)  In the event that (i) the Company determines that
          the Exchange Offer Registration provided for in Section 2(a)
          above is not available or may not be consummated as soon as
          practicable after the last Exchange Date because it would violate
          applicable law or the applicable interpretations of the Staff of
          the SEC, (ii) the Exchange Offer is not for any other reason
          consummated by August 12, 1998 or (iii) in the opinion of counsel
          for the Placement Agent a Registration Statement must be filed
          and a Prospectus must be delivered by the Placement Agent in
          connection with any offering or sale of Registrable Securities,
          the Company shall use its best efforts to cause to be filed as
          soon as practicable after such determination, date or notice of
          such opinion of counsel is given to the Company, as the case may
          be, a Shelf Registration Statement providing for the sale by the
          Holders of all of the Registrable Securities and to have such
          Shelf Registration Statement declared effective by the SEC.  In
          the event the Company is required to file a Shelf Registration
          Statement solely as a result of the matters referred to in clause
          (iii) of the preceding sentence, the Company shall use its best
          efforts to file and have declared effective by the SEC both an
          Exchange Offer Registration Statement pursuant to Section 2(a)
          with respect to all Registrable Securities and a Shelf
          Registration Statement (which may be a combined Registration
          Statement with the Exchange Offer Registration Statement) with
          respect to offers and sales of Registrable Securities held by the
          Placement Agent after completion of the Exchange Offer.  The
          Company agrees to use its best efforts to keep the Shelf
          Registration Statement continuously effective until the period
          referred to in  Rule 144(k) or until all of the Registrable
          Securities covered by the Shelf Registration Statement have been
          sold pursuant to the Shelf Registration Statement.  The Company
          further agrees to supplement or amend the Shelf Registration
          Statement if required by the rules, regulations or instructions
          applicable to the registration form used by the Company for such
          Shelf Registration Statement or by the 1933 Act or by any other
          rules and regulations thereunder for shelf registration or if
          reasonably requested by a Holder with respect to information
          relating to such Holder, and to use its best efforts to cause any
          such amendment to become effective and such Shelf Registration
          Statement to become usable as soon as thereafter practicable. 
          The Company agrees to furnish to the Holders of Registrable
          Securities copies of any such supplement or amendment promptly
          after its being used or filed with the SEC.

                    (c)  The Company shall pay all Registration Expenses in
          connection with the registration pursuant to Section 2(a) or
          Section 2(b).  Each Holder shall pay all underwriting discounts
          and commissions and transfer taxes, if any, relating to the sale
          or disposition of such Holder's Registrable Securities pursuant
          to the Shelf Registration Statement.

                    (d)  An Exchange Offer Registration Statement pursuant
          to Section 2(a) hereof or a Shelf Registration Statement pursuant
          to Section 2(b) hereof will not be deemed to have become
          effective unless it has been declared effective by the SEC;
          provided, however, that, if, after it has been declared
          --------  -------
          effective, the offering of Registrable Securities pursuant to a
          Shelf Registration Statement is interfered with by any stop
          order, injunction or other order or requirement of the SEC or any
          other governmental agency or court, such Registration Statement
          will be deemed not to have become effective during the period of
          such interference until the offering of Registrable Securities
          pursuant to such Registration Statement may legally resume.  As
          provided for in the Indenture, in the event the Exchange Offer is
          not consummated and the Shelf Registration Statement is not
          declared effective on or prior to August 12, 1998, interest (in
          addition to the accrual of original issue discount during the
          period ending February 15, 2003 and in addition to the interest
          otherwise due on the Securities after such date) will accrue, at
          an annual rate of .5% of Accreted Value on the preceding
          semiannual payment date, on the Securities from August 12, 1998,
          payable in cash semiannually in arrears on each February 15 and
          August 15, commencing February 15, 1999, until the Exchange Offer
          is consummated or the Shelf Registration Statement is declared
          effective; provided that, if a Shelf Registration Statement is
                     --------
          required solely by the matters referred to in clause (iii) of the
          first sentence of Section 2(b), such increase in interest rate
          shall be payable only to the Placement Agent, with respect to
          Securities held by it, and only with respect to any period (from
          August 12, 1998) during which such Shelf Registration Statement
          is not effective.

                    (e)  Without limiting the remedies available to the
          Placement Agent and the Holders, the Company acknowledges that
          any failure by the Company to comply with its obligations under
          Section 2(a) and Section 2(b) hereof may result in material
          irreparable injury to the Placement Agent or the Holders for
          which there is no adequate remedy at law, that it will not be
          possible to measure damages for such injuries precisely and that,
          in the event of any such failure, the Placement Agent or any
          Holder may obtain such relief as may be required to specifically
          enforce the Company's obligations under Section 2(a) and
          Section 2(b) hereof.

                    3.   Registration Procedures.
                         -----------------------

                    In connection with the obligations of the Company with
          respect to the Registration Statements pursuant to Section 2(a)
          and Section 2(b) hereof, the Company shall as expeditiously as
          possible:

                    (a)  prepare and file with the SEC a Registration
               Statement on the appropriate form under the 1933 Act, which
               form (x) shall be selected by the Company and (y) shall, in
               the case of a Shelf Registration, be available for the sale
               of the Registrable Securities by the selling Holders thereof
               and (z) shall comply as to form in all material respects
               with the requirements of the applicable form and include all
               financial statements required by the SEC to be filed
               therewith, and use its best efforts to cause such
               Registration Statement to become effective and remain
               effective in accordance with Section 2 hereof;

                    (b)  prepare and file with the SEC such amendments and
               post-effective amendments to each Registration Statement as
               may be necessary to keep such Registration Statement
               effective for the applicable period and cause each
               Prospectus to be supplemented by any required prospectus
               supplement and, as so supplemented, to be filed pursuant to
               Rule 424 under the 1933 Act; to keep each Prospectus current
               during the period described under Section 4(3) and Rule 174
               under the 1933 Act that is applicable to transactions by
               brokers or dealers with respect to the Registrable
               Securities or Exchange Securities;

                    (c)  in the case of a Shelf Registration, furnish to
               each Holder of Registrable Securities, to counsel for the
               Placement Agent, to counsel for the Holders and to each
               Underwriter of an Underwritten Offering of Registrable
               Securities, if any, without charge, as many copies of each
               Prospectus, including each preliminary Prospectus, and any
               amendment or supplement thereto and such other documents as
               such Holder or Underwriter may reasonably request, in order
               to facilitate the public sale or other disposition of the
               Registrable Securities; and the Company consents to the use
               of such Prospectus and any amendment or supplement thereto
               in accordance with applicable law by each of the selling
               Holders of Registrable Securities and any such Underwriters
               in connection with the offering and sale of the Registrable
               Securities covered by and in the manner described in such
               Prospectus or any amendment or supplement thereto in
               accordance with applicable law;

                    (d)  use its best efforts to register or qualify, by
               the time the applicable Registration Statement is declared
               effective by the SEC, the Registrable Securities under all
               applicable state securities or "blue sky" laws of such
               jurisdictions as any Holder of Registrable Securities
               covered by a Registration Statement shall reasonably request
               in writing, to cooperate with such Holders in connection
               with any filings required to be made with the National
               Association of Securities Dealers, Inc. and do any and all
               other acts and things which may be reasonably necessary or
               advisable to enable such Holder to consummate the
               disposition in each such jurisdiction of such Registrable
               Securities owned by such Holder; provided, however, that the
                                                --------  -------
               Company shall not be required to (i) qualify as a foreign
               corporation or as a dealer in securities in any jurisdiction
               where it would not otherwise be required to qualify but for
               this Section 3(d), (ii) file any general consent to service
               of process or (iii) subject itself to taxation in any such
               jurisdiction if it is not otherwise so subject;

                    (e)  in the case of a Shelf Registration, notify each
               Holder of Registrable Securities, counsel for the Holders
               and counsel for the Placement Agent promptly and, if
               requested by any such Holder or counsel, confirm such advice
               in writing (i) when a Registration Statement has become
               effective and when any post-effective amendment thereto has
               been filed and becomes effective, (ii) of any request by the
               SEC or any state securities authority for amendments and
               supplements to a Registration Statement and Prospectus or
               for additional information after the Registration Statement
               has become effective, (iii) of the issuance by the SEC or
               any state securities authority of any stop order suspending
               the effectiveness of a Registration Statement or the
               initiation of any proceedings for that purpose, (iv) if,
               between the effective date of a Registration Statement and
               the closing of any sale of Registrable Securities covered
               thereby, the representations and warranties of the Company
               contained in any underwriting agreement, securities sales
               agreement or other similar agreement, if any, relating to
               the offering cease to be true and correct in all material
               respects or if the Company receives any notification with
               respect to the suspension of the qualification of the
               Registrable Securities for sale in any jurisdiction or the
               initiation of any proceeding for such purpose, (v) of the
               happening of any event during the period a Shelf
               Registration Statement is effective which makes any
               statement made in such Registration Statement or the related
               Prospectus untrue in any material respect or which requires
               the making of any changes in such Registration Statement or
               Prospectus in order to make the statements therein not
               misleading and (vi) of any determination by the Company that
               a post-effective amendment to a Registration Statement would
               be appropriate;

                    (f)  make every reasonable effort to obtain the
               withdrawal of any order suspending the effectiveness of a
               Registration Statement at the earliest possible moment and
               provide immediate notice to each Holder of the withdrawal of
               any such order;

                    (g)  in the case of a Shelf Registration, furnish to
               each Holder of Registrable Securities, without charge, at
               least one conformed copy of each Registration Statement and
               any post-effective amendment thereto (without documents
               incorporated therein by reference or exhibits thereto,
               unless requested);

                    (h)  in the case of a Shelf Registration, cooperate
               with the selling Holders of Registrable Securities to
               facilitate the timely preparation and delivery of
               certificates representing Registrable Securities to be sold
               and not bearing any restrictive legends and enable such
               Registrable Securities to be in such denominations
               (consistent with the provisions of the Indenture) and
               registered in such names as the selling Holders may
               reasonably request at least two business days prior to the
               closing of any sale of Registrable Securities;

                    (i)  in the case of a Shelf Registration, upon the
               occurrence of any event contemplated by Section 3(e)(v)
               hereof, use its best efforts to prepare and file with the
               SEC a supplement or post-effective amendment to a
               Registration Statement or the related Prospectus or any
               document incorporated therein by reference or file any other
               required document so that, as thereafter delivered to the
               purchasers of the Registrable Securities, such Prospectus
               will not contain any untrue statement of a material fact or
               omit to state a material fact necessary to make the
               statements therein, in light of the circumstances under
               which they were made, not misleading.  The Company agrees to
               notify the Holders to suspend use of the Prospectus as
               promptly as practicable after the occurrence of such an
               event, and the Holders hereby agree to suspend use of the
               Prospectus until the Company has amended or supplemented the
               Prospectus to correct such misstatement or omission;

                    (j)  within a reasonable time prior to the filing of
               any Registration Statement, any Prospectus, any amendment to
               a Registration Statement or amendment or supplement to a
               Prospectus or any document which is to be incorporated by
               reference into a Registration Statement or a Prospectus
               after initial filing of a Registration Statement, provide
               copies of such document to the Placement Agent and its
               counsel (and, in the case of a Shelf Registration Statement,
               the Holders and their counsel) and make such of the
               representatives of the Company as shall be reasonably
               requested by the Placement Agent or its counsel (and, in the
               case of a Shelf Registration Statement, the Holders or their
               counsel) available for discussion of such document, and
               shall not at any time file or make any amendment to the
               Registration Statement, any Prospectus or any amendment of
               or supplement to a Registration Statement or a Prospectus or
               any document which is to be incorporated by reference into a
               Registration Statement or a Prospectus, of which the
               Placement Agent and its counsel (and, in the case of a Shelf
               Registration Statement, the Holders and their counsel) shall
               not have previously been advised and furnished a copy or to
               which the Placement Agent or its counsel (and, in the case
               of a Shelf Registration Statement, the Holders or their
               counsel) shall object, except for any amendment or
               supplement or document (a copy of which has been previously
               furnished to the Placement Agent and its counsel (and, in
               the case of a Shelf Registration Statement, the Holders and
               their counsel)) which counsel to the Company shall advise
               the Company, in the form of a written legal opinion, is
               required in order to comply with applicable law; the
               Placement Agent agrees that, if it receives timely notice
               and drafts under this clause (j), it will not take actions
               or make objections pursuant to this clause (j) such that the
               Company is unable to comply with its obligations under
               Section 2(a);

                    (k)  obtain a CUSIP number and, if applicable, a CINS
               number, for all Exchange Securities or Registrable
               Securities, as the case may be, not later than the effective
               date of a Registration Statement;

                    (l)  cause the Indenture to be qualified under the
               Trust Indenture Act of 1939, as amended (the "TIA"), in
               connection with the registration of the Exchange Securities
               or Registrable Securities, as the case may be, cooperate
               with the Trustee and the Holders to effect such changes to
               the Indenture as may be required for the Indenture to be so
               qualified in accordance with the terms of the TIA and
               execute, and use its best efforts to cause the Trustee to
               execute, all documents as may be required to effect such
               changes and all other forms and documents required to be
               filed with the SEC to enable the Indenture to be so
               qualified in a timely manner;

                    (m)  in the case of a Shelf Registration, make
               available for inspection by a representative of the Holders
               of the Registrable Securities, any Underwriter participating
               in any disposition pursuant to such Shelf Registration
               Statement, and attorneys and accountants designated by the
               Holders, at reasonable times and in a reasonable manner, all
               financial and other records, pertinent documents and
               properties of the Company, and cause the respective
               officers, directors and employees of the Company to supply
               all information reasonably requested by any such
               representative, Underwriter, attorney or accountant in
               connection with a Shelf Registration Statement;

                    (n)  in the case of a Shelf Registration, use its best
               efforts to cause all Registrable Securities to be listed on
               any securities exchange or any automated quotation system on
               which similar securities issued by the Company are then
               listed if requested by the Majority Holders, to the extent
               such Registrable Securities satisfy applicable listing
               requirements;

                    (o)  use its best efforts to cause the Exchange
               Securities or Registrable Securities, as the case may be, to
               be rated by two nationally recognized statistical rating
               organizations (as such term is defined in Rule 436(g)(2)
               under the 1933 Act);

                    (p)  if reasonably requested by any Holder of
               Registrable Securities covered by a Registration Statement,
               (i) promptly incorporate in a Prospectus supplement or post-
               effective amendment such information with respect to such
               Holder as such Holder reasonably requests to be included
               therein and (ii) make all required filings of such
               Prospectus supplement or such post-effective amendment as
               soon as the Company has received notification of the matters
               to be incorporated in such filing; and

                    (q)  in the case of a Shelf Registration, enter into
               such customary agreements and take all such other actions in
               connection therewith (including those requested by the
               Holders of a majority of the Registrable Securities being
               sold) in order to expedite or facilitate the disposition of
               such Registrable Securities including, but not limited to,
               an Underwritten Offering and in such connection, (i) to the
               extent possible, make such representations and warranties to
               the Holders and any Underwriters of such Registrable
               Securities with respect to the business of the Company and
               its subsidiaries, the Registration Statement, Prospectus and
               documents incorporated by reference or deemed incorporated
               by reference, if any, in each case, in form, substance and
               scope as are customarily made by issuers to underwriters in
               underwritten offerings and confirm the same if and when
               requested, (ii) obtain opinions of counsel to the Company
               (which counsel and opinions, in form, scope and substance,
               shall be reasonably satisfactory to the Holders and such
               Underwriters and their respective counsel) addressed to each
               selling Holder and Underwriter of Registrable Securities,
               covering the matters customarily covered in opinions
               requested in underwritten offerings, (iii) obtain "cold
               comfort" letters from the independent certified public
               accountants of the Company (and, if applicable, any other
               certified public accountant of any subsidiary of the
               Company, or of any business acquired by the Company for
               which financial statements and financial data are or are
               required to be included in the Registration Statement)
               addressed to each selling Holder and Underwriter of
               Registrable Securities, such letters to be in customary form
               and covering matters of the type customarily covered in
               "cold comfort" letters in connection with underwritten
               offerings, and (iv) deliver such documents and certificates
               as may be reasonably requested by the Holders of a majority
               in principal amount of the Registrable Securities being sold
               or the Underwriters, and which are customarily delivered in
               underwritten offerings, to evidence the continued validity
               of the representations and warranties of the Company made
               pursuant to clause (i) above and to evidence compliance with
               any customary conditions contained in an underwriting
               agreement. 

                    In the case of a Shelf Registration Statement, the
          Company may require each Holder of Registrable Securities to
          furnish to the Company such information regarding the Holder and
          the proposed distribution by such Holder of such Registrable
          Securities as the Company may from time to time reasonably
          request in writing.  

                    In the case of a Shelf Registration Statement, each
          Holder agrees that, upon receipt of any notice from the Company
          of the happening of any event of the kind described in Section
          3(e)(v) hereof, such Holder will forthwith discontinue
          disposition of Registrable Securities pursuant to a Registration
          Statement until such Holder's receipt of the copies of the
          supplemented or amended Prospectus contemplated by Section 3(i)
          hereof, and, if so directed by the Company, such Holder will
          deliver to the Company (at its expense) all copies in its
          possession, other than permanent file copies then in such
          Holder's possession, of the Prospectus covering such Registrable
          Securities current at the time of receipt of such notice.  If the
          Company shall give any such notice to suspend the disposition of
          Registrable Securities pursuant to a Registration Statement, the
          Company shall extend the period during which the Registration
          Statement shall be maintained effective pursuant to this
          Agreement by the number of days during the period from and
          including the date of the giving of such notice to and including
          the date when the Holders shall have received copies of the
          supplemented or amended Prospectus necessary to resume such
          dispositions.

                    The Holders of Registrable Securities covered by a
          Shelf Registration Statement who desire to do so may sell such
          Registrable Securities in an Underwritten Offering.  In any such
          Underwritten Offering, the investment banker or investment
          bankers and manager or managers (the "Underwriters") that will
          administer the offering will be selected by the Majority Holders
          of the Registrable Securities included in such offering.

                    4.   Participation of Broker-Dealers in Exchange Offer.
                         -------------------------------------------------

                    (a)  The Staff of the SEC has taken the position that
          any broker-dealer that receives Exchange Securities for its own
          account in the Exchange Offer in exchange for Securities that
          were acquired by such broker-dealer as a result of market-making
          or other trading activities (a "Participating Broker-Dealer"),
          may be deemed to be an "underwriter" within the meaning of the
          1933 Act and must deliver a prospectus meeting the requirements
          of the 1933 Act in connection with any resale of such Exchange
          Securities.

                    The Company understands that it is the Staff's position
          that if the Prospectus contained in the Exchange Offer
          Registration Statement includes a plan of distribution containing
          a statement to the above effect and the means by which
          Participating Broker-Dealers may resell the Exchange Securities,
          without naming the Participating Broker-Dealers or specifying the
          amount of Exchange Securities owned by them, such Prospectus may
          be delivered by Participating Broker-Dealers to satisfy their
          prospectus delivery obligation under the 1933 Act in connection
          with resales of Exchange Securities for their own accounts, so
          long as the Prospectus otherwise meets the requirements of the
          1933 Act.

                    (b)  In light of the above, notwithstanding the other
          provisions of this Agreement, the Company agrees that the
          provisions of this Agreement as they relate to a Shelf
          Registration shall also apply to an Exchange Offer Registration
          to the extent, and with such reasonable modifications thereto as
          may be, reasonably requested by the Placement Agent or by one or
          more Participating Broker-Dealers, in each case as provided in
          clause (ii) below, in order to expedite or facilitate the
          disposition of any Exchange Securities by Participating Broker-
          Dealers consistent with the positions of the Staff recited in
          Section 4(a) above; provided that:
                              --------

                    (i)  the Company shall not be required to amend or
               supplement the Prospectus contained in the Exchange Offer
               Registration Statement, as would otherwise be contemplated
               by Section 3(i) of this Agreement, for a period exceeding 60
               days after the last Exchange Date (as such period may be
               extended pursuant to the penultimate paragraph of Section 3
               of this Agreement) and Participating Broker-Dealers shall
               not be authorized by the Company to deliver and shall not
               deliver such Prospectus after such period in connection with
               the resales contemplated by this Section 4; and

                    (ii) the application of the Shelf Registration
               procedures set forth in Section 3 of this Agreement to an
               Exchange Offer Registration, to the extent not required by
               the positions of the Staff of the SEC or the 1933 Act and
               the rules and regulations thereunder, will be in conformity
               with the reasonable request to the Company by the Placement
               Agent or with the reasonable request in writing to the
               Company by one or more broker-dealers who certify to the
               Placement Agent and the Company in writing that they
               anticipate that they will be Participating Broker-Dealers;
               and provided further that, in connection with such
                   -------- -------
               application of the Shelf Registration procedures set forth
               in Section 3 to an Exchange Offer Registration, the Company
               shall be obligated (x) to deal only with one entity
               representing the Participating Broker-Dealers, which shall
               be the Placement Agent unless it elects not to act as such
               representative, (y) to pay the fees and expenses of only one
               counsel representing the Participating Broker-Dealers, which
               shall be counsel to the Placement Agent unless such counsel
               elects not to so act and (z) to cause to be delivered only
               one, if any, "cold comfort" letter with respect to the
               Prospectus in the form existing on the last Exchange Date
               and with respect to each subsequent amendment or supplement,
               if any, effected during the period specified in clause (i)
               above.

                    (c)  The Placement Agent shall have no liability to the
          Company or any Holder with respect to any request that it may
          make pursuant to Section 4(b) above.

                    5.   Indemnification and Contribution.
                         --------------------------------

                    (a)  The Company agrees to indemnify and hold harmless
          the Placement Agent, each Holder and each Person, if any, who
          controls the Placement Agent or any Holder within the meaning of
          either Section 15 of the 1933 Act or Section 20 of the 1934 Act,
          or is under common control with, or is controlled by, the
          Placement Agent or any Holder, from and against all losses,
          claims, damages and liabilities (including, without limitation,
          any legal or other expenses reasonably incurred by the Placement
          Agent, any Holder or any such controlling or affiliated Person in
          connection with defending or investigating any such action or
          claim) caused by any untrue statement or alleged untrue statement
          of a material fact contained in any Registration Statement (or
          any amendment thereto) pursuant to which Exchange Securities or
          Registrable Securities were registered under the 1933 Act,
          including all documents incorporated therein by reference, or
          caused by any omission or alleged omission to state therein a
          material fact required to be stated therein or necessary to make
          the statements therein not misleading, or caused by any untrue
          statement or alleged untrue statement of a material fact
          contained in any Prospectus (as amended or supplemented if the
          Company shall have furnished any amendments or supplements
          thereto), or caused by any omission or alleged omission to state
          therein a material fact necessary to make the statements therein
          in light of the circumstances under which they were made not
          misleading, except insofar as such losses, claims, damages or
          liabilities are caused by any such untrue statement or omission
          or alleged untrue statement or omission based upon information
          relating to the Placement Agent or any Holder furnished to the
          Company in writing by the Placement Agent or any selling Holder
          expressly for use therein.  In connection with any Underwritten
          Offering permitted by Section 3 of this Agreement, the Company
          will also indemnify the Underwriters, if any, selling brokers,
          dealers and similar securities industry professionals
          participating in the distribution, their officers and directors
          and each Person who controls such Persons (within the meaning of
          the 1933 Act and the 1934 Act) to the same extent as provided
          above with respect to the indemnification of the Holders, if
          requested in connection with any Registration Statement.

                    (b)  Each Holder agrees, severally and not jointly, to
          indemnify and hold harmless the Company, the Placement Agent and
          the other selling Holders, and each of their respective
          directors, officers who sign the Registration Statement and each
          Person, if any, who controls the Company, the Placement Agent and
          any other selling Holder within the meaning of either Section 15
          of the 1933 Act or Section 20 of the 1934 Act to the same extent
          as the foregoing indemnity from the Company to the Placement
          Agent and the Holders, but only with reference to information
          relating to such Holder furnished to the Company in writing by
          such Holder expressly for use in any Registration Statement (or
          any amendment thereto) or any Prospectus (or any amendment or
          supplement thereto).

                    (c)  In case any proceeding (including any governmental
          investigation) shall be instituted involving any Person in
          respect of which indemnity may be sought pursuant to either
          paragraph (a) or paragraph (b) above, such Person (the
          "indemnified party") shall promptly notify the Person against
          whom such indemnity may be sought (the "indemnifying party") in
          writing and the indemnifying party, upon request of the
          indemnified party, shall retain counsel reasonably satisfactory
          to the indemnified party to represent the indemnified party and
          any others the indemnifying party may designate in such
          proceeding and shall pay the fees and disbursements of such
          counsel related to such proceeding.  In any such proceeding, any
          indemnified party shall have the right to retain its own counsel,
          but the fees and expenses of such counsel shall be at the expense
          of such indemnified party unless (i) the indemnifying party and
          the indemnified party shall have mutually agreed to the retention
          of such counsel or (ii) the named parties to any such proceeding
          (including any impleaded parties) include both the indemnifying
          party and the indemnified party and representation of both
          parties by the same counsel would be inappropriate due to actual
          or potential differing interests between them.  It is understood
          that the indemnifying party shall not, in connection with any
          proceeding or related proceedings in the same jurisdiction, be
          liable for (a) the fees and expenses of more than one separate
          firm (in addition to any local counsel) for the Placement Agent
          and all Persons, if any, who control the Placement Agent within
          the meaning of either Section 15 of the 1933 Act or Section 20 of
          the 1934 Act, (b) the fees and expenses of more than one separate
          firm (in addition to any local counsel) for the Company, its
          directors, its officers who sign the Registration Statement and
          each person, if any, who controls the Company within the meaning
          of either such Section and (c) the fees and expenses of more than
          one separate firm (in addition to any local counsel) for all
          Holders and all Persons, if any, who control any Holders within
          the meaning of either such Section, and that all such fees and
          expenses shall be reimbursed as they are incurred.  In such case
          involving the Placement Agent and Persons who control the
          Placement Agent, such firm shall be designated in writing by the
          Placement Agent.  In such case involving the Holders and such
          Persons who control Holders, such firm shall be designated in
          writing by the Majority Holders.  In all other cases, such firm
          shall be designated by the Company.  The indemnifying party shall
          not be liable for any settlement of any proceeding effected
          without its written consent but, if settled with such consent or
          if there be a final judgment for the plaintiff, the indemnifying
          party agrees to indemnify the indemnified party from and against
          any loss or liability by reason of such settlement or judgment. 
          Notwithstanding the foregoing sentence, if at any time an
          indemnified party shall have requested an indemnifying party to
          reimburse the indemnified party for fees and expenses of counsel
          as contemplated by the second and third sentences of this
          paragraph, the indemnifying party agrees that it shall be liable
          for any settlement of any proceeding effected without its written
          consent if (i) such settlement is entered into more than 30 days
          after receipt by such indemnifying party of the aforesaid request
          and (ii) such indemnifying party shall not have reimbursed the
          indemnified party for such fees and expenses of counsel in
          accordance with such request prior to the date of such
          settlement.  No indemnifying party shall, without the prior
          written consent of the indemnified party, effect any settlement
          of any pending or threatened proceeding in respect of which such
          indemnified party is or could have been a party and indemnity
          could have been sought hereunder by such indemnified party,
          unless such settlement includes an unconditional release of such
          indemnified party from all liability on claims that are the
          subject matter of such proceeding.

                    (d)  If the indemnification provided for in paragraph
          (a) or paragraph (b) of this Section 4 is unavailable to an
          indemnified party or insufficient in respect of any losses,
          claims, damages or liabilities, then each indemnifying party
          under such paragraph, in lieu of indemnifying such indemnified
          party thereunder, shall contribute to the amount paid or payable
          by such indemnified party as a result of such losses, claims,
          damages or liabilities in such proportion as is appropriate to
          reflect the relative fault of the indemnifying party or parties
          on the one hand and of the indemnified party or parties on the
          other hand in connection with the statements or omissions that
          resulted in such losses, claims, damages or liabilities, as well
          as any other relevant equitable considerations.  The relative
          fault of the Company and the Holders shall be determined by
          reference to, among other things, whether the untrue or alleged
          untrue statement of a material fact or the omission or alleged
          omission to state a material fact relates to information supplied
          by the Company or by the Holders and the parties' relative
          intent, knowledge, access to information and opportunity to
          correct or prevent such statement or omission.  The Holders'
          respective obligations to contribute pursuant to this Section
          5(d) are several in proportion to the respective principal amount
          of Registrable Securities of such Holder that were registered
          pursuant to a Registration Statement.  

                    (e)  The Company and each Holder agree that it would
          not be just or equitable if contribution pursuant to this Section
          5 were determined by pro rata allocation or by any other method
                               --- ----
          of allocation that does not take account of the equitable
          considerations referred to in paragraph (d) above.  The amount
          paid or payable by an indemnified party as a result of the
          losses, claims, damages and liabilities referred to in paragraph
          (d) above shall be deemed to include, subject to the limitations
          set forth above, any legal or other expenses reasonably incurred
          by such indemnified party in connection with investigating or
          defending any such action or claim.  Notwithstanding the
          provisions of this Section 5, no Holder shall be required to
          indemnify or contribute any amount in excess of the amount by
          which the total price at which Registrable Securities were sold
          by such Holder exceeds the amount of any damages that such Holder
          has otherwise been required to pay by reason of such untrue or
          alleged untrue statement or omission or alleged omission.  No
          Person guilty of fraudulent misrepresentation (within the meaning
          of Section 11(f) of the 1933 Act) shall be entitled to
          contribution from any Person who was not guilty of such
          fraudulent misrepresentation.  The remedies provided for in this
          Section 5 are not exclusive and shall not limit any rights or
          remedies which may otherwise be available to any indemnified
          party at law or in equity.

                    The indemnity and contribution provisions contained in
          this Section 5 shall remain operative and in full force and
          effect regardless of (i) any termination of this Agreement, (ii)
          any investigation made by or on behalf of the Placement Agent,
          any Holder or any Person controlling the Placement Agent or any
          Holder, or by or on behalf of the Company, its officers or
          directors or any Person controlling the Company, (iii) acceptance
          of any of the Exchange Securities and (iv) any sale of
          Registrable Securities pursuant to a Shelf Registration
          Statement.

                    6.   Miscellaneous.
                         -------------

                    (a)  No Inconsistent Agreements.  The Company has not
                         --------------------------
          entered into, and on or after the date of this Agreement will not
          enter into, any agreement which is inconsistent with the rights
          granted to the Holders of Registrable Securities in this
          Agreement or otherwise conflicts with the provisions hereof.  The
          rights granted to the Holders hereunder do not in any way
          conflict with and are not inconsistent with the rights granted to
          the holders of the Company's other issued and outstanding
          securities under any such agreements.

                    (b)  Amendments and Waivers.  The provisions of this
                         ----------------------
          Agreement, including the provisions of this sentence, may not be
          amended, modified or supplemented, and waivers or consents to
          departures from the provisions hereof may not be given unless the
          Company has obtained the written consent of Holders of at least a
          majority in aggregate principal amount of the outstanding
          Registrable Securities affected by such amendment, modification,
          supplement, waiver or consent; provided, however, that no
                                         --------  -------
          amendment, modification, supplement, waiver or consents to any
          departure from the provisions of Section 5 hereof shall be
          effective as against any Holder of Registrable Securities unless
          consented to in writing by such Holder.

                    (c)  Notices.  All notices and other communications
                         -------
          provided for or permitted hereunder shall be made in writing by
          hand-delivery, registered first-class mail, telex, telecopier, or
          any courier guaranteeing overnight delivery (i) if to a Holder,
          at the most current address given by such Holder to the Company
          by means of a notice given in accordance with the provisions of
          this Section 6(c), which address initially is, with respect to
          the Placement Agent, the address set forth in the Indenture, and
          (ii) if to the Company, initially at the Company's address set
          forth in the Indenture and thereafter at such other address,
          notice of which is given in accordance with the provisions of
          this Section 6(c).

                    All such notices and communications shall be deemed to
          have been duly given:  at the time delivered by hand, if
          personally delivered; five business days after being deposited in
          the mail, postage prepaid, if mailed; when answered back, if
          telexed; when receipt is acknowledged, if telecopied; and on the
          next business day if timely delivered to an air courier
          guaranteeing overnight delivery.

                    Copies of all such notices, demands, or other
          communications shall be concurrently delivered by the person
          giving the same to the Trustee, at the address specified in the
          Indenture.

                    (d)  Successors and Assigns.  This Agreement shall
                         ----------------------
          inure to the benefit of and be binding upon the successors,
          assigns and transferees of each of the parties, including,
          without limitation and without the need for an express
          assignment, subsequent Holders; provided that nothing herein
                                          --------
          shall be deemed to permit any assignment, transfer or other
          disposition of Registrable Securities in violation of the terms
          of the Placement Agreement.  If any transferee of any Holder
          shall acquire Registrable Securities, in any manner, whether by
          operation of law or otherwise, such Registrable Securities shall
          be held subject to all of the terms of this Agreement, and by
          taking and holding such Registrable Securities such person shall
          be conclusively deemed to have agreed to be bound by and to
          perform all of the terms and provisions of this Agreement and
          such person shall be entitled to receive the benefits hereof. 
          The Placement Agent (in its capacity as Placement Agent) shall
          have no liability or obligation to the Company with respect to
          any failure by a Holder to comply with, or any breach by any
          Holder of, any of the obligations of such Holder under this
          Agreement.

                    (e)  Purchases and Sales of Securities.  The Company
                         ---------------------------------
          shall not, and shall use its best efforts to cause its affiliates
          (as defined in Rule 405 under the 1933 Act) not to, purchase and
          then resell or otherwise transfer any Notes.

                    (f)  Third Party Beneficiary.  The Holders shall be
                         -----------------------
          third party beneficiaries to the agreements made hereunder
          between the Company, on the one hand, and the Placement Agent, on
          the other hand, and each Holder shall have the right to enforce
          such agreements directly to the extent it deems such enforcement
          necessary or advisable to protect its rights or the rights of
          Holders hereunder.

                    (g)  Counterparts.  This Agreement may be executed
                         ------------
          manually or by facsimile in any number of counterparts and by the
          parties hereto in separate counterparts, each of which when so
          executed shall be deemed to be an original and all of which taken
          together shall constitute one and the same agreement.

                    (h)  Headings.  The headings in this Agreement are for
                         --------
          convenience of reference only and shall not limit or otherwise
          affect the meaning hereof.

                    (i)  Governing Law; Submission to Jurisdiction.  This
                         -----------------------------------------
          Agreement shall be governed by and construed in accordance with
          the laws of the State of New York.  The Company agrees to submit
          to the jurisdiction of any federal or state court located in the
          City of New York in any suit, action or proceeding with respect
          to this Agreement and for actions brought under the U.S. federal
          or state securities laws brought in any such court.

                    (j)  Severability.  In the event that any one or more
                         ------------
          of the provisions contained herein, or the application thereof in
          any circumstance, is held invalid, illegal or unenforceable, the
          validity, legality and enforceability of any such provision in
          every other respect and of the remaining provisions contained
          herein shall not be affected or impaired thereby.


     <PAGE>

                    IN WITNESS WHEREOF, the parties have executed this
          Agreement as of the date first written above.


                                             ICG SERVICES, INC.


                                             By: /s/ Dan Teague
                                                 --------------------------
                                                 Name: H. Dan Teague
                                                 Title:  Executive Vice
                                                         President, General
                                                         Counsel and Secretary





          Confirmed and accepted as of
            the date first above written:

          MORGAN STANLEY & CO. INCORPORATED


          By:  /s/ James B. Avery                                
             ---------------------------------
              Name:  James B. Avery
              Title:  Principal



                                                           EXHIBIT 5.1
                                                                   

                                                          (212) 603-2000


                                                New York, New York
                                                April 22, 1998


             ICG Services, Inc.
             161 Inverness Drive West
             Englewood, CO 80112

                       Re:  ICG SERVICES, INC.;
                            REGISTRATION STATEMENT ON FORM S-4
                            ----------------------------------


             Ladies and Gentlemen:

                       As counsel for ICG Services, Inc., a Delaware
             corporation (the "Company"), we have been requested to
             furnish our opinion as to matters hereinafter set forth in
             connection with the proposed issuance by the Company of
             $490,000,000 in aggregate principal amount of its 10%
             Senior Exchange Discount Notes due 2008 (the "Exchange
             Notes"), under an Indenture dated February 12, 1998,
             between the Company and Norwest Bank Colorado, National
             Association (the "Trustee"), in exchange for its
             outstanding 10% Senior Discount Notes due 2008 (the
             "Exchange Offer").  The issuance of the Exchange Notes
             pursuant to the Exchange Offer will be registered under the
             Securities Act of 1933, as amended (the "Act"), pursuant to
             a registration statement on Form S-4, as amended (the
             "Registration Statement"), which Registration Statement
             sets forth the terms and conditions of the Exchange Offer. 
             In connection herewith, we have examined the Certificate of
             Incorporation and By-Laws of the Company and the minutes of
             the Board of Directors of the Company with respect to the
             registration of the Exchange Notes and the issuance of the
             Exchange Notes.  We have also examined such other
             documents, records, certificates of public officials and
             such matters of law as we have deemed necessary or
             appropriate for the purpose of rendering this opinion.

                       We are members of the bar of the State of New
             York and are not licensed or admitted to practice law in
             any other jurisdiction.  Accordingly, we have not reviewed
             and we express no opinion with respect to the laws of any
             jurisdiction other than the State of New York.

                       Based upon the foregoing, we are of the opinion
             that when the Exchange Notes are duly executed by the
             Company and authenticated by the Trustee in accordance with
             the terms of the Indenture and issued in accordance with
             the terms of the Exchange Offer, the Exchange Notes will be
             duly authorized and constitute valid and binding
             obligations of the Company.

                       We hereby consent to the filing of this opinion
             as an exhibit to the Registration Statement and to the
             reference to this firm appearing in the Prospectus under
             the heading "Legal Matters."  In giving the foregoing
             consent, we do not thereby admit that we are in the
             category of persons whose consent is required under Section
             7 of the Act or the rules and regulations of the Securities
             and Exchange Commission thereunder.

                                                Very truly yours,

                                                /s/ Reid & Priest LLP

                                                REID & PRIEST LLP



                                                       EXHIBIT 8.1



                                  New York, New York
                                    April 24, 1998


          ICG Services, Inc.
          161 Inverness Drive West
          Englewood, Colorado 80112

          Ladies and Gentlemen:

                    Reference is made to the prospectus, (the
          "Prospectus"), which constitutes part of the registration
          statement on Form S-4 ("Registration Statement"), to be filed by
          ICG Services, Inc. with the Securities and Exchange Commission on
          or about the date hereof pursuant to the Securities Act of 1933,
          as amended, for the exchange of 10% Senior Exchange Discount
          Notes due 2008 for an equal principal amount of newly-issued 10%
          Senior Exchange Discount Notes due 2008 (the "New Notes").

                    We are of the opinion that the statements set forth
          under the caption "Certain United States Federal Income Tax
          Considerations" in the Prospectus constitute an accurate
          description, in general terms, of certain United States federal
          income tax considerations that may be relevant to the prospective
          holders of the New Notes.

                    We hereby consent to the filing of this opinion as an
          exhibit to the Registration Statement and to the references to us
          in the Prospectus under the caption "Certain United States
          Federal Income Tax Considerations."

                                             Very truly yours,

                                             /s/ Reid & Priest LLP

                                                 REID & PRIEST LLP






               21.1:     Subsidiaries of Registrant.



           Name of                   State of                 Doing
          Subsidiary               Incorporation            Business as
          ----------               -------------            -----------

          ICG Equipment, Inc.         Colorado                  --

          NETCOM On-Line
          Communication
          Services, Inc.              Delaware                  --



                                                               Exhibit 23.1



                  Consent of Ernst & Young LLP, Independent Auditors


          We consent to the reference to our firm under the caption
          "Experts" and to the use of our report dated February 13, 1998
          with respect to the consolidated financial statements of NETCOM
          On-Line Communications Services, Inc., in the Registration
          Statement (Form S-4) and related Prospectus of ICG Services, Inc.
          for the registration of 10% Senior Exchange Discount Notes due
          2008.

                                                   ERNST & YOUNG LLP

          San Jose, California
          April 22, 1998


<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the
consolidated financial statements of ICG Services, Inc. and subsidiaries for 
the fiscal year ended December 31, 1997 and is qualified in its entirety by 
reference to such financial statements.
</LEGEND>
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               DEC-31-1997
<CASH>                                          63,368
<SECURITIES>                                         0
<RECEIVABLES>                                    4,025
<ALLOWANCES>                                     1,628
<INVENTORY>                                        341
<CURRENT-ASSETS>                                69,660
<PP&E>                                         122,923
<DEPRECIATION>                                  49,978
<TOTAL-ASSETS>                                 146,847
<CURRENT-LIABILITIES>                           30,962
<BONDS>                                          3,550
                                0
                                          0
<COMMON>                                           102
<OTHER-SE>                                     112,233
<TOTAL-LIABILITY-AND-EQUITY>                   146,847
<SALES>                                              0
<TOTAL-REVENUES>                               160,660
<CGS>                                                0
<TOTAL-COSTS>                                   95,498
<OTHER-EXPENSES>                                97,482
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 734
<INCOME-PRETAX>                               (33,054)
<INCOME-TAX>                                      (38)
<INCOME-CONTINUING>                           (33,092)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                  (33,092)
<EPS-PRIMARY>                                   (3.27)
<EPS-DILUTED>                                        0
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the
consolidated financial statements of ICG Services, Inc. and subsidiaries for 
the fiscal year ended December 31, 1996 and is qualified in its entirety by 
reference to such financial statements.
</LEGEND>
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1996
<PERIOD-END>                               DEC-31-1996
<CASH>                                          73,408
<SECURITIES>                                       849
<RECEIVABLES>                                    2,180
<ALLOWANCES>                                       896
<INVENTORY>                                        464
<CURRENT-ASSETS>                                78,489
<PP&E>                                         107,476
<DEPRECIATION>                                  23,103
<TOTAL-ASSETS>                                 169,634
<CURRENT-LIABILITIES>                           24,843
<BONDS>                                              0
                                0
                                          0
<COMMON>                                           101
<OTHER-SE>                                     144,690
<TOTAL-LIABILITY-AND-EQUITY>                   169,634
<SALES>                                              0
<TOTAL-REVENUES>                               120,540
<CGS>                                                0
<TOTAL-COSTS>                                   73,545
<OTHER-EXPENSES>                                91,237
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                               (44,242)
<INCOME-TAX>                                      (23)
<INCOME-CONTINUING>                           (44,265)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                  (44,265)
<EPS-PRIMARY>                                   (4.46)
<EPS-DILUTED>                                        0
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the
consolidated financial statements of ICG Services, Inc. and subsidiaries for 
the fiscal year ended December 31, 1995 and is qualified in its entirety by 
reference to such financial statements.
</LEGEND>
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1995
<PERIOD-START>                             JAN-01-1995
<PERIOD-END>                               DEC-31-1995
<CASH>                                         146,001
<SECURITIES>                                         0
<RECEIVABLES>                                    1,678
<ALLOWANCES>                                       225
<INVENTORY>                                        206
<CURRENT-ASSETS>                               149,131
<PP&E>                                          54,118
<DEPRECIATION>                                 (7,394)
<TOTAL-ASSETS>                                 202,680
<CURRENT-LIABILITIES>                           17,214
<BONDS>                                              0
                                0
                                          0
<COMMON>                                           111
<OTHER-SE>                                     185,355
<TOTAL-LIABILITY-AND-EQUITY>                   202,680
<SALES>                                              0
<TOTAL-REVENUES>                                52,422
<CGS>                                                0
<TOTAL-COSTS>                                   29,550
<OTHER-EXPENSES>                                36,921
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                               (14,049)
<INCOME-TAX>                                      (15)
<INCOME-CONTINUING>                           (14,064)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                  (14,064)
<EPS-PRIMARY>                                   (1.95)
<EPS-DILUTED>                                        0
        


</TABLE>


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