LEVEL 3 COMMUNICATIONS INC
8-K, 1999-09-20
TELEPHONE & TELEGRAPH APPARATUS
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<PAGE>

                      SECURITIES AND EXCHANGE COMMISSION

                            Washington, D.C. 20549


                                   FORM 8-K


                                CURRENT REPORT

                        Pursuant to Section 13 or 15(d)
                    of the Securities Exchange Act of 1934

               Date of Report (Date of earliest event reported):
                              September 14, 1999
                              ------------------

                         Level 3 Communications, Inc.
               ------------------------------------------------
            (Exact name of registrant as specified in its charter)

                                   Delaware
                                   --------
                 (State or other jurisdiction of incorporation)

         0-15658                              47-0210602
      -------------                        ----------------
(Commission File Number)          (I.R.S. Employer Identification No.)


                            1025 Eldorado Boulevard
                          Broomfield, Colorado 80021
              -----------------------------------------------------
                   (Address of principal executive offices)

Registrant's telephone number, including area code: (402) 536-3677


                                Not Applicable
        ---------------------------------------------------------------
        (Former name or former address, if changed since last report.)

<PAGE>

Item 5. Other Events.

On September 14, 1999, Level 3 Communications, Inc. (the "Company") entered into
an underwriting agreement (the "Underwriting Agreement") with the
representatives named in Schedule I thereto, as the representatives of the
several underwriters named in Schedule I thereto, in connection with the
offering (the "Offering") of $750,000,000 aggregate principal amount of its 6%
Convertible Subordinated Notes due 2009 (the "Notes") convertible into shares of
the Company's common stock, par value $.01 per share. An additional $112,500,000
aggregate principal amount of the Notes is subject to an over-allotment option
granted to the underwriters in the Underwriting Agreement. A copy of the
Underwriting Agreement is attached hereto as Exhibit 1.1 and is incorporated
herein by reference. The Notes are being issued pursuant to an Indenture dated
as of September 20, 1999 (a form of which was filed as an exhibit to the
Registration Statement (as hereinafter defined)) and a First Supplemental
Indenture dated as of September 20, 1999. A copy of the First Supplemental
Indenture is attached hereto as Exhibit 4.1 and is incorporated herein by
reference. On September 20, 1999, the Offering was consummated, and the Company
issued $823,000,000 aggregate principal amount of the Notes, including
$73,000,000 aggregate principal amount pursuant to the underwriters' exercise of
the over-allotment option.

The  Offering is made pursuant to the Company's Registration Statement on Form
S-3 (File No. 333-68887) (the "Registration Statement") under the Securities Act
of 1933, as amended. The Registration Statement provides that the Company may
from time to time offer its debt and equity securities with an aggregate public
offering price of up to $3.5 billion.

Item 7. Financial Statements and Exhibits

     (a) Financial statements of businesses being acquired: Not applicable.

     (b) Pro forma financial information: Not Applicable

     (c) Exhibits:

     1.1       Underwriting Agreement, dated September 14, 1999, among the
               Company and the representatives named in Schedule I thereto, as
               the representatives of the several underwriters named in Schedule
               I thereto

     4.1       First Supplemental Indenture dated as of September 20, 1999
               between the Company and IBJ Whitehall Bank & Trust Company, as
               Trustee

     23.1      Consent of PricewaterhouseCoopers LLP

     23.2      Consent of PricewaterhouseCoopers LLP

     23.3      Consent of Arthur Anderson LLP

                                      -2-
<PAGE>


                                  SIGNATURES


Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.

                                               LEVEL 3 COMMUNICATIONS, INC.

Dated: September 20, 1999                      By: /s/ Neil J. Eckstein
                                                  ____________________________
                                                  Name: Neil J. Eckstein
                                                  Title: Vice President









                                      -3-

<PAGE>

                                                                  EXHIBIT 1.1

                                                                  EXECUTION COPY

                         Level 3 Communications, Inc.


                            Underwriting Agreement

                                                              New York, New York
                                                              September 14, 1999

Goldman, Sachs & Co.
Salomon Smith Barney Inc.
Chase Securities Inc.
Credit Suisse First Boston Corporation
J. P. Morgan Securities Inc.
Morgan Stanley & Co. Incorporated

c/o Goldman, Sachs & Co.
85 Broad Street
New York, New York 10004


Ladies and Gentlemen:

          Level 3 Communications, Inc., a corporation organized under the laws
of Delaware (the "Company"), proposes to sell to the several underwriters named
in Schedule I hereto  (the "Underwriters"), for whom you (the "Representatives")
are acting as representatives, $750,000,000 aggregate principal amount of its 6%
Convertible Subordinated Notes due 2009 (the "Firm Securities") convertible into
shares of the Company's common stock, $0.01 par value (the "Common Stock").  The
Company also proposes to grant to the Underwriters an option to purchase up to
$112,500,000 additional aggregate principal amount of such notes (the "Option
Securities" and, together with the Firm Securities, the "Securities").  To the
extent there are no additional Underwriters listed on Schedule I other than you,
the term Representatives as used herein shall mean you, as Underwriters, and the
terms Representatives and Underwriters shall mean either the singular or plural
as the context requires.  Any reference herein to the Registration Statement,
the Basic Prospectus, any Preliminary Final Prospectus or the Final Prospectus
shall be deemed to refer to and include the documents incorporated by reference
therein pursuant to Item 12 of Form S-3 which were filed under the Exchange Act
on or before the Effective Date of the Registration Statement or the issue date
of the Basic Prospectus, any Preliminary Final Prospectus or the Prospectus, as
the case may be; and any reference herein to the terms "amend", "amendment" or
"supplement" with respect to the Registration Statement, the Basic Prospectus,
any Preliminary Final Prospectus or the Final Prospectus shall be deemed to
refer to and include the filing of any document under the Exchange Act after the
Effective Date of the Registration Statement, or the issue date of the Basic
Prospectus, any Preliminary Final Prospectus or the Final Prospectus, as the
case may be, deemed to be incorporated therein by reference.  Certain terms used
herein are defined in Section 17 hereof.

          1.  Representations and Warranties.  The Company represents and
              -------------------------------
warrants to, and agrees with, each Underwriter as set forth below in this
Section 1.

          (a)  The Company meets the requirements for use of Form S-3 under the
     Act and has prepared and filed with the Commission a registration statement
     (file
<PAGE>

                                                                               2

     number 333-68887) on Form S-3, including a related basic prospectus, for
     registration under the Act of the offering and sale of the Securities. The
     Company may have filed one or more amendments thereto, including a
     Preliminary Final Prospectus, each of which has previously been furnished
     to you. The Company will next file with the Commission one of the
     following: (1) after the Effective Date of such registration statement, a
     final prospectus supplement relating to the Securities in accordance with
     Rules 430A and 424(b), (2) prior to the Effective Date of such registration
     statement, an amendment to such registration statement (including the form
     of final prospectus supplement) or (3) a final prospectus in accordance
     with Rules 415 and 424(b). In the case of clause (1), the Company has
     included in such registration statement, as amended at the Effective Date,
     all information (other than Rule 430A Information) required by the Act and
     the rules thereunder to be included in such registration statement and the
     Final Prospectus. As filed, such final prospectus supplement or such
     amendment and form of final prospectus supplement shall contain all Rule
     430A Information, together with all other such required information, and,
     except to the extent the Representatives shall agree in writing to a
     modification, shall be in all substantive respects in the form furnished to
     you prior to the Execution Time or, to the extent not completed at the
     Execution Time, shall contain only such specific additional information and
     other changes (beyond that contained in the Basic Prospectus and any
     Preliminary Final Prospectus) as the Company has advised you, prior to the
     Execution Time, will be included or made therein.

          (b)  On the Effective Date, the Registration Statement did or will,
     and when the Final Prospectus is first filed (if required) in accordance
     with Rule 424(b) and on the Closing Date (as defined herein) and on any
     date on which Option Securities are purchased, if such date is not the
     Closing Date (a "settlement date"), the Final Prospectus (and any
     supplement thereto) will, comply in all material respects with the
     applicable requirements of the Act and the Exchange Act and the respective
     rules thereunder; on the Effective Date and at the Execution Time, the
     Registration Statement did not or will not contain any untrue statement of
     a material fact or omit to state any material fact required to be stated
     therein or necessary in order to make the statements therein not
     misleading; and, on the Effective Date (if the Final Prospectus is not
     filed pursuant to Rule 424(b)) or on the date of any filing pursuant to
     Rule 424(b) (if the Final Prospectus is filed pursuant to Rule 424(b)) and,
     in either case, on the Closing Date and any settlement date, the Final
     Prospectus (together with any supplement thereto) will not, include any
     untrue statement of a material fact or omit to state a material fact
     necessary in order to make the statements therein, in the light of the
     circumstances under which they were made, not misleading; provided,
                                                               --------
     however, that the Company makes no representations or warranties as to the
     -------
     information contained in or omitted from the Registration Statement or the
     Final Prospectus (or any supplement thereto) in reliance upon and in
     conformity with information furnished in writing to the Company by or on
     behalf of any Underwriter through the Representatives specifically for
     inclusion in the Registration Statement or the Final Prospectus (or any
     supplement thereto).

          (c)  Subsequent to the respective dates as of which information is
     given in the Final Prospectus, except as set forth or contemplated in the
     Final Prospectus, neither the Company nor any of its subsidiaries has
     incurred any liabilities or obligations, direct or contingent, which are
     material to the Company and its subsidiaries taken as a whole, nor entered
     into any transaction not in the ordinary course of business that
<PAGE>

                                                                               3

     is material to the Company and its subsidiaries taken as a whole, and there
     has not been, singularly or in the aggregate, any material adverse change,
     in the properties, business, results of operations, financial condition,
     affairs or business prospects of the Company and its subsidiaries taken as
     a whole (a "Material Adverse Change"). Without limiting the foregoing,
     neither the Company nor any of its subsidiaries has sustained since the
     respective dates as of which information is given in the Final Prospectus
     any loss or interference with its business from fire, explosion, flood or
     other calamity, whether or not covered by insurance, or from any labor
     dispute or court or governmental or regulatory action, order or decree,
     constituting a Material Adverse Change, otherwise than as set forth or
     contemplated in the Final Prospectus.

          (d)  Each of the Company and the Subsidiaries (x) has been duly
     organized and is validly existing as a corporation under the laws of its
     jurisdiction of organization and is in good standing under the laws of such
     jurisdiction, (y) has the requisite corporate power and authority to carry
     on its business as it is currently being conducted and as described in the
     Final Prospectus, and to own, lease and operate its properties and (z) is
     duly qualified and is authorized to do business and is in good standing in
     each jurisdiction where the operation, ownership or leasing of property or
     the conduct of its business requires such qualification, except where any
     failure to be so qualified would not, singularly or when aggregated with
     failures to be qualified elsewhere, have a material adverse effect on the
     properties, business, results of operations, financial condition, affairs
     or business prospects of the Company and its subsidiaries taken as a whole
     (a "Material Adverse Effect").  The Company has the requisite corporate
     power and authority to execute, deliver and perform this Agreement and to
     issue, sell and deliver the Securities.  The term "Subsidiary" means each
     entity listed on Schedule II hereto.

          (e)  The Company's authorized equity capitalization is as set forth in
     the Final Prospectus; the capital stock of the Company conforms in all
     material respects to the description thereof contained in the Final
     Prospectus; the outstanding shares of Common Stock have been duly and
     validly authorized and issued and are fully paid and nonassessable; the
     shares of Common Stock initially issuable upon conversion of the Securities
     have been duly and validly authorized and, when issued upon conversion
     against payment of the conversion price and in accordance with the terms of
     the Indenture (as defined below), will be validly issued, fully paid and
     nonassessable; the Board of Directors of the Company or a duly constituted
     committee thereof, has duly and validly adopted resolutions reserving such
     shares of Common Stock for issuance upon conversion; the holders of
     outstanding shares of capital stock of the Company are not entitled to
     preemptive or other rights to subscribe for the Securities or the shares of
     Common Stock issuable upon conversion thereof; and, except as set forth in
     the Final Prospectus and, except for outstanding warrants and options to
     purchase shares of Common Stock that in the aggregate represent less than
     1% of the Common Stock outstanding on the date hereof, no options, warrants
     or other rights to purchase, agreements or other obligations to issue, or
     rights to convert any obligations into or exchange any securities for,
     shares of capital stock of or ownership interests in the Company are
     outstanding.  All the outstanding shares of capital stock of each
     Subsidiary have been duly and validly authorized and issued and are fully
     paid and nonassessable, and, except as otherwise set forth in the Final
     Prospectus, all outstanding shares of capital stock of the Subsidiaries are
     owned by the Company either directly or through wholly owned
<PAGE>

                                                                               4

     subsidiaries free and clear of any perfected security interest or any other
     security interests, claims, liens or encumbrances.


          (f)  The Securities have been duly authorized and, when executed by
     the Company and authenticated by the Trustee (as defined below) in
     accordance with the terms of the Indenture and delivered to and paid for by
     the Underwriters in accordance with the terms of this Agreement, will
     constitute valid and legally binding obligations of the Company entitled to
     the benefits provided by the indenture to be dated as of the Closing Date
     (the "Base Indenture") between the Company and IBJ Whitehall Bank & Trust
     Company as Trustee (the "Trustee"), as supplemented by the First
     Supplemental Indenture to be dated as of the same date (the "Supplemental
     Indenture" and, together with the Base Indenture, the "Indenture") under
     which they are to be issued.  The Base Indenture will be substantially in
     the form filed as an exhibit to the Registration Statement; the Indenture
     has been duly authorized and duly qualified under the Trust Indenture Act
     and, when executed and delivered by the Company and the Trustee, will
     constitute a valid and legally binding obligation of the Company,
     enforceable in accordance with its terms, subject, as to enforcement, to
     bankruptcy, insolvency, fraudulent transfer, reorganization, moratorium and
     other laws of general applicability relating to or affecting creditors'
     rights and to general equity principles; and the Securities and the
     Indenture will conform to the descriptions thereof in the Prospectus;

          (g)  There is no franchise, contract or other document of a character
     required to be described in the Registration Statement or Final Prospectus,
     or to be filed as an exhibit thereto, which is not described or filed as
     required; and the statements in the Final Prospectus under the headings
     "Business--Regulation" and "Business--Legal Proceedings" fairly summarize
     the matters therein described.

          (h)  This Agreement has been duly authorized, executed and delivered
     by the Company.

          (i)  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 Prospectus, will not be an "investment company" as
     defined in the Investment Company Act of 1940, as amended.

          (j)  The execution and delivery of this Agreement, the issuance and
     sale of the Securities, the performance by the Company of this Agreement
     and the consummation of the other transactions herein contemplated will not
     (x) conflict with or result in a breach or violation of any of the
     respective charters, by-laws or other organizational documents of the
     Company or any of the Subsidiaries, (y) violate or conflict with any
     material statute, rule or regulation applicable to the Company or any
     Subsidiary or any order or decree of any governmental or regulatory agency
     or body or any court having jurisdiction over the Company or any Subsidiary
     or any of their respective properties or (z) after giving effect to the
     waivers and consents obtained on or prior to the date hereof, if any,
     conflict with or result in a breach or violation of any term or provision
     of, constitute a default or cause an acceleration of any obligation under,
     or result in the imposition or creation of (or the obligation to create or
     impose) a lien or other claim or encumbrance with respect to, any bond,
     note, debenture or other evidence of indebtedness or any indenture,
     mortgage or deed of
<PAGE>

                                                                               5

     trust or any other material agreement or instrument to which the Company or
     any of the Subsidiaries is a party or by which it or any of them is bound,
     or to which any properties of the Company or any of the Subsidiaries is or
     may be subject. No authorization, approval or consent or order of, or
     filing, registration or qualification with, any court or governmental or
     regulatory body or agency is required in connection with the transactions
     contemplated by this Agreement except as have been made or obtained and
     except as may be required by and made with or obtained from state
     securities laws or regulations, the National Association of Securities
     Dealers, Inc. or, with respect to filing the Final Prospectus with the
     Commission in accordance with Rule 424(b) under the Act.

          (k)  Except as described in the Final Prospectus, there is no action,
     suit or proceeding before or by any court, arbitrator or governmental or
     regulatory official, agency or body, domestic or foreign, pending against
     or affecting the Company or any of its subsidiaries, or any of their
     respective properties, that, if determined adversely, is reasonably
     expected to affect adversely the issuance of the Securities or in any
     manner draw into question the validity of this Agreement  or the Securities
     or to result, singularly or when aggregated with other pending actions and
     actions known to be threatened that are not described in the Final
     Prospectus, in a Material Adverse Effect, or that is reasonably expected to
     materially and adversely affect the consummation of this Agreement or the
     transactions contemplated hereby, and to the best of the Company's
     knowledge, no such proceedings are contemplated or threatened.

          (l)  Neither the Company nor any of the Subsidiaries is or after
     giving effect to the issuance of the Securities will be (i) in violation of
     its respective charter, bylaws or other organizational documents or (ii) in
     default in the performance of any bond, debenture, note or any other
     evidence of indebtedness or any indenture, mortgage, deed of trust or other
     contract, lease or other instrument to which the Company or any of the
     Subsidiaries is a party or by which any of them is bound, or to which any
     of the property or assets of the Company or any of the Subsidiaries is
     subject, other than such defaults that could not, singularly or in the
     aggregate, have a Material Adverse Effect.

          (m)  The firms of accountants that have certified the consolidated
     financial statements and supporting schedules of the Company included or
     incorporated by reference in the Final Prospectus are independent public
     accountants with respect to the Company and its subsidiaries, as required
     by the Act.  The consolidated historical statements and any pro forma
     information, together with related schedules and notes, if any, included or
     incorporated by reference in the Final Prospectus comply as to form in all
     material respects with the requirements of the Act.  Such historical
     financial statements fairly present in all material respects the
     consolidated financial position of the Company and its subsidiaries at the
     respective dates indicated and the results of their operations and their
     cash flows for the respective periods indicated, in accordance with
     generally accepted accounting principles, except as otherwise expressly
     stated therein, as consistently applied throughout such periods.  Such pro
     forma information has been prepared on a basis consistent with such
     historical financial statements, except for the pro forma adjustments
     specified therein, and gives effect to assumptions made on a reasonable
     basis and fairly presents in all material respects and gives effect to the
     transactions described therein pertaining to such pro forma information.
     The other financial and statistical information and data
<PAGE>

                                                                               6

     included in the Final Prospectus and the Registration Statement, historical
     and pro forma, are, in all material respects, accurately presented and
     prepared on a basis consistent with such financial statements and the books
     and records of the Company.

          (n)  Each of the Company and the Subsidiaries has all certificates,
     consents, exemptions, orders, permits, licenses, authorizations, or other
     approvals (each, an "Authorization") of and from, and has made all
     declarations and filings with, all Federal, state, local and other
     governmental or regulatory bodies or agencies, and all courts and other
     tribunals, necessary or required to own, lease, license and use its
     properties and assets and to conduct its business as currently operated in
     the manner described in the Final Prospectus, except to the extent that the
     failure to obtain or file any such Authorizations would not, singularly or
     in the aggregate, reasonably be expected to have a material adverse effect
     on such business taken as a whole.  All such Authorizations are in full
     force and effect with respect to the Company and the Subsidiaries, and the
     Company and the Subsidiaries are in compliance in all material respects
     with the terms and conditions of all such Authorizations and with the rules
     and regulations of the regulatory authorities and governing bodies having
     jurisdiction with respect thereto.

          (o)  Except as disclosed in the Final Prospectus, no holder of any
     security of the Company has or will have any right to require the
     registration of such security by virtue of the offering and sale of the
     Securities under this Agreement other than any such right that has been
     expressly waived in writing.  No holder of any of the outstanding shares of
     capital stock of the Company or any other person is entitled to preemptive
     or other rights to subscribe for the Securities.

          (p)  The Company has not taken nor will it take, directly or
     indirectly, any action prohibited by Regulation M under the Exchange Act,
     in connection with the offering of the Securities.

          (q)  Other than the Subsidiaries, there is no entity or other person
     (i) of which a majority of the voting equity securities or other interests
     is owned, directly or indirectly, by the Company and (ii) which held more
     than 5% of the total assets of the Company on a consolidated basis as of
     June 30,1999, excluding inter-company balances.

          (r)  Any reprogramming required to permit the proper functioning, in
     and following the year 2000, of (a) the computer systems of the Company and
     the Subsidiaries and (b) equipment containing embedded microchips of the
     Company and the Subsidiaries and the testing of all such systems and
     equipment, as so reprogrammed, will be completed by December 31, 1999
     except where the failure to do so would not reasonably be expected to
     result in a Material Adverse Effect. Except as disclosed in the Final
     Prospectus, the cost to the Company and the Subsidiaries of such
     reprogramming and testing and of the reasonably foreseeable consequences of
     the year 2000 to the Company and the Subsidiaries (other than reprogramming
     errors and the failure of others' systems or equipment) is not reasonably
     expected by the Company to result in a Material Adverse Effect.  Except for
     such of the reprogramming referred to in the preceding sentence as may be
     necessary, the computer and management information systems of the Company
     and the Subsidiaries are and, with ordinary course upgrading and
     maintenance, will
<PAGE>

                                                                               7

     continue to be, sufficient to permit the Company to conduct its businesses
     without a Material Adverse Effect.

          Any certificate signed by any officer of the Company and delivered to
the Representatives or counsel for the Underwriters in connection with the
offering of the Securities shall be deemed a representation and warranty by the
Company, as to matters covered thereby, to each Underwriter.

          2.  Purchase and Sale.  (a)  Subject to the terms and conditions and
              ------------------
in reliance upon the representations and warranties herein set forth, the
Company agrees to sell to each Underwriter, and each Underwriter agrees,
severally and not jointly, to purchase from the Company, at a purchase price of
97.125% of the principal amount thereof, plus accrued interest, if any, from
September 20, 1999 to the Closing Date, the principal amount of Firm Securities
set forth opposite such Underwriters name on Schedule I hereto.

          (b)  Subject to the terms and conditions and in reliance upon the
representations and warranties herein set forth, the Company hereby grants an
option to the several Underwriters to purchase, severally and not jointly, up to
$112,500,000 aggregate principal amount of Option Securities at a purchase price
of 97.125% of the principal amount thereof, plus accrued interest, if any, from
September 20, 1999 to the settlement date for the Option Securities.  Said
option may be exercised for the sole purpose of covering sales of securities in
excess of the aggregate principal amount of Firm Securities by the Underwriters.
Said option may be exercised in whole or in part at any time (but not more than
once) on or before the 30th day after the date of the Final Prospectus upon
written or telegraphic notice by the Representatives to the Company setting
forth the number of shares of the Option Securities as to which the several
Underwriters are exercising the option and the settlement date.  The principal
amount of Option Securities to be purchased by each Underwriter shall be the
same percentage of the total principal amount of Option Securities to be
purchased by the several Underwriters as such Underwriter is purchasing of the
Firm Securities, subject to such adjustments as you in your absolute discretion
shall deem advisable.

          3.  Delivery and Payment.  Delivery of and payment for the Firm
              ---------------------
Securities and the Option Securities (if the option provided for in Section 2(b)
hereof shall have been exercised on or before the third Business Day prior to
the Closing Date) shall be made at 10:00 AM, New York City time, on September
20, 1999, which date and time may be post  poned by agreement between the
Representatives and the Company or as provided in Section 9 hereof (such date
and time of delivery and payment for the Securities being herein called the
"Closing Date").  Delivery of the Securities shall be made to the
Representatives for the respective accounts of the several Underwriters against
payment by the several Underwriters through the Representatives of the purchase
price thereof to or upon the order of the Company by wire transfer payable in
same-day funds to an account specified by the Company.  Delivery of the Firm
Securities and the Option Securities shall be made through the facilities of The
Depository Trust Company ("DTC") unless the Representatives shall otherwise
instruct.

          If the option provided for in Section 2(b) hereof is exercised after
the third Business Day prior to the Closing Date, the Company will deliver the
Option Securities (at the expense of the Company), through the facilities of DTC
unless the Representatives shall instruct otherwise, on the date specified by
the Representatives in the notice to the Company of their exercise of such
option (which shall be not more than ten nor fewer than three Business Days
after exercise of said option) for the respective accounts of the several
Underwriters, against payment by the several
<PAGE>

                                                                               8

Underwriters through the Representatives of the purchase price thereof to or
upon the order of the Company by wire transfer payable in same-day funds to an
account specified by the Company. If settlement for the Option Securities occurs
after the Closing Date, the Company will deliver to the Representatives on the
settlement date for the Option Securities, and the obligation of the
Underwriters to purchase the Option Securities shall be conditioned upon receipt
of, supplemental opinions, certificates and letters confirming as of such date
the opinions, certificates and letters delivered on the Closing Date pursuant to
Section 6 hereof.

          4.  Offering by Underwriters.  It is understood that the several
              -------------------------
Underwriters are to offer the Securities for sale to the public as set forth in
the Final Prospectus.

          5.  Agreements.  The Company agrees with the several Underwriters
              -----------
that:

          (a)  The Company will use its best efforts to cause the Registration
     Statement, if not effective at the Execution Time, and any amendment
     thereof, to become effective.  Prior to the termination of the offering of
     the Securities, the Company will not file any amendment of the Registration
     Statement or supplement (including the Final Prospectus or any Preliminary
     Final Prospectus) to the Basic Prospectus or any Rule 462(b) Registration
     Statement unless the Company has furnished you a copy for your review prior
     to filing and will not file any such proposed amendment or supplement to
     which you reasonably object.  Subject to the foregoing sentence, if the
     Registration Statement has become or becomes effective pursuant to Rule
     430A, or filing of the Final Prospectus is otherwise required under Rule
     424(b), the Company will cause the Final Prospectus, properly completed,
     and any supplement thereto to be filed with the Commission pursuant to the
     applicable paragraph of Rule 424(b) within the time period prescribed and
     will provide evidence satisfactory to the Representatives of such timely
     filing.  The Company will promptly advise the Representatives (1) when the
     Registration Statement, if not effective at the Execution Time, shall have
     become effective, (2) when the Final Prospectus, and any supplement
     thereto, shall have been filed (if required) with the Commission pursuant
     to Rule 424(b) or when any Rule 462(b) Registration Statement shall have
     been filed with the Commission, (3) when, prior to termination of the
     offering of the Securities, any amendment to the Registration Statement
     shall have been filed or become effective, (4) of any request by the
     Commission or its staff for any amendment of the Registration Statement, or
     any Rule 462(b) Registration Statement, or for any supplement to the Final
     Prospectus or for any additional information, (5) of the issuance by the
     Commission of any stop order suspending the effectiveness of the
     Registration Statement or the institution or threatening of any proceeding
     for that purpose and (6) of the receipt by the Company of any notification
     with respect to the suspension of the qualification of the Securi  ties for
     sale in any jurisdiction or the institution or threatening of any
     proceeding for such purpose.  The Company will use its best efforts to
     prevent the issuance of any such stop order or the suspension of any such
     qualification and, if issued, to obtain as soon as possible the withdrawal
     thereof.

          (b)  If, at any time when a prospectus relating to the Securities is
     required to be delivered under the Act, any event occurs as a result of
     which the Final Prospectus as then supplemented would include any untrue
     statement of a material fact or omit to state any material fact necessary
     to make the statements therein in the light of the circumstances under
     which they were made not misleading, or if it shall be necessary
<PAGE>

                                                                               9

     to amend the Registration Statement or supplement the Final Prospectus to
     comply with the Act or the Exchange Act or the respective rules thereunder,
     the Company promptly will (1) notify the Representatives of such event, (2)
     prepare and file with the Commission, subject to the second sentence of
     paragraph (a) of this Section 5, an amendment or supplement which will
     correct such statement or omission or effect such compliance and (3) supply
     any supplemented Final Prospectus to you in such quantities as you may
     reasonably request.

          (c)  As soon as practicable, the Company will make generally available
     to its security holders an earnings statement or statements of the Company
     and its subsidiaries which will satisfy the provisions of Section 11(a) of
     the Act and Rule 158 under the Act.

          (d)  The Company will furnish to each of the Representatives and
     counsel for the Underwriters, without charge, a conformed copy of the
     Registration Statement (including exhibits thereto) and to each other
     Underwriter a copy of the Registration Statement (without exhibits thereto)
     and, so long as delivery of a prospectus by an Underwriter or dealer may be
     required by the Act, as many copies of each Preliminary Final Prospectus
     and the Final Prospectus and any supplement thereto as the Representatives
     may reasonably request.  The Company will pay the expenses of printing or
     other production of all such documents.

          (e)  The Company will cooperate with the Representatives in arranging,
     at the Company's cost, for the qualification of the Securities for sale
     under the laws of such jurisdictions as the Representatives may designate
     and will maintain such qualifications in effect so long as required for the
     sale of the Securities; provided however, that in connection therewith the
     Company shall not be required to qualify as a foreign corporation or to
     execute a general consent to service of process in any jurisdiction or
     subject itself to taxation in excess of a nominal dollar amount in any such
     jurisdiction where it is not then subject.  The Company promptly will
     advise the Representatives of the receipt by it of any notification with
     respect to the suspension of the qualification of the Securities for sale
     in any jurisdiction or the initiation or threatening of any proceeding for
     such purpose.

          (f)  The Company will not, for a period of 90 days following the
     Execution Date, without the prior written consent of Goldman, Sachs & Co.,
     offer, sell, contract to sell, issue, announce the offering or issuance of
     or otherwise dispose of, directly or indirectly, register, cause to be
     registered or announce the registration or intended registration of, in any
     case for its own account, any securities of the Company that are
     substantially similar to the Securities or any shares of Common Stock,
     including any such shares beneficially or indirectly owned or controlled by
     the Company, or any securities convertible into or exchangeable for Common
     Stock, except for: (A) up to 2,000,000 shares of Common Stock in the
     aggregate issued in connection with acquisitions (including by
     consolidation, merger or similar transaction and including acquisitions of
     shares of any of its subsidiaries held by minority shareholders), provided
     that more than 2,000,000 such shares may be issued to the extent the
     purchaser or purchasers of such excess shares agree to be bound by the
     provisions of this paragraph until after the 90th day following the
     Execution Date, (B) Common Stock issued pursuant to any employee benefit
     plan, stock ownership or stock option plan or dividend reinvestment plan in
     effect on the Execution Date, or options granted pursuant to any such plan
     in effect on the Execution Date,
<PAGE>

                                                                              10

     provided that such options cannot be exercised until after the 90th day
     following the Execution Date, (C) Common Stock issued in connection with
     the inclusion of the Common Stock in any Major Market Index, (D)
     maintaining the effectiveness of any registration statement in place on the
     Execution Date or otherwise permitted to be filed under this paragraph, (E)
     Common Stock issued in connection with the exercise of any warrants
     outstanding on the Execution Date, (F) Common Stock issued to prospective
     employees in connection with such employees being hired by the Company and
     (G) the Securities and Common Stock issuable upon conversion of the
     Securities.

          (g)  The Company will not take, directly or indirectly, any action
     designed to or which has constituted or which might reasonably be expected
     to cause or result, under the Exchange Act or otherwise, in stabilization
     or manipulation of the price of any security of the Company to facilitate
     the sale or resale of the Securities.

          (h)  The Company will apply the net proceeds from the sale of the
     Securities sold by it substantially in accordance with its statements under
     the caption "Use of Proceeds" in the Final Prospectus.

          6.  Conditions to the Obligations of the Underwriters.  The
              --------------------------------------------------
obligations of the Underwriters to purchase the Firm Securities and the Option
Securities, as the case may be, shall be subject to the accuracy of the
representations and warranties on the part of the Company contained herein as of
the Execution Time, the Closing Date and any settlement date pursuant to Section
3 hereof, to the accuracy of the statements of the Company made in any
certificates pursuant to the provisions hereof, to the performance by the
Company of its obligations hereunder and to the following additional conditions:

          (a)  If the Registration Statement has not become effective prior to
     the Execution  Time, unless the Representatives agree in writing to a later
     time, the Registration Statement will become effective not later than (i)
     6:00 PM New York City time on the date of determination of the public
     offering price, if such determination occurred at or prior to 3:00 PM New
     York City time on such date or (ii) 9:30 AM on the Business Day following
     the day on which the public offering price was determined, if such
     determination occurred after 3:00 PM New York City time on such date, if
     filing of the Final Prospectus, or any supplement thereto, is required
     pursuant to Rule 424(b), the Final Prospectus, and any such supplement,
     will be filed in the manner and within the time period required by Rule
     424(b); and no stop order suspending the effectiveness of the Registration
     Statement shall have been issued and no proceeding for that purpose shall
     have been instituted or threatened.

          (b)  The Company shall have requested and caused Willkie Farr &
     Gallagher, counsel for the Company, to have furnished to the
     Representatives their opinion, dated the Closing Date and addressed to the
     Representatives on behalf of the Underwriters, to the effect of Exhibit A.

          (c)  The Company shall have caused Swidler Berlin Shereff Friedman
     LLP, regulatory counsel for the Company, to have furnished to the
     Representatives their opinion, dated the Closing Date and addressed to the
     Representatives on behalf of the Underwriters, to the effect of Exhibit B.
<PAGE>

                                                                              11

          (d)  The Company shall have furnished to the Representatives the
     opinion of Thomas C. Stortz, Senior Vice President, General Counsel and
     Secretary of the Company, dated the Closing Date and addressed to the
     Representatives on behalf of the Underwriters, to the effect of Exhibit C.

          (e)  The Representatives shall have received from Cravath, Swaine &
     Moore, counsel for the Underwriters, such opinion or opinions, dated the
     Closing Date and addressed to the Representatives on behalf of the
     Underwriters, with respect to the issuance and sale of the Securities, the
     Registration Statement, the Final Prospectus (together with any supplement
     thereto) and other related matters as the Representatives may reasonably
     require, and the Company shall have furnished to such counsel such
     documents as they request for the purpose of enabling them to pass upon
     such matters.

          (f)  The Company shall have furnished to the Representatives a
     certificate of the Company, signed by the President and Chief Executive
     Officer and the Executive Vice President and Chief Financial Officer of the
     Company, dated the Closing Date, to the effect that the signers of such
     certificate have carefully examined the Registration Statement, the Final
     Prospectus, any supplements to the Final Prospectus and this Agreement and
     that:

               (i)    the representations and warranties of the Company in this
                      Agreement are true and correct in all material respects on
                      and as of the Closing Date with the same effect as if made
                      on the Closing Date, and the Company has complied with all
                      the agreements and satisfied all the conditions on its
                      part to be performed or satisfied hereunder at or prior to
                      the Closing Date;

               (ii)   no stop order suspending the effectiveness of the
                      Registration Statement has been issued and no proceedings
                      for that purpose have been instituted or, to the Company's
                      knowledge, threatened; and

               (iii)  since June 30, 1999, the date of the most recent financial
                      statements included or incorporated by reference in the
                      Final Prospectus (exclusive of any supplement thereto),
                      there has not been, singularly or in the aggregate, any
                      material adverse change in the properties, business,
                      results of operations, financial condition, affairs or
                      business prospects of the Company and its subsidiaries
                      taken as a whole, whether or not arising from transactions
                      in the ordinary course of business, except as set forth in
                      or contemplated in the Final Prospectus (exclusive of any
                      supplement thereto).

          (g)  The Company shall have requested and caused Pricewaterhouse
     Coopers LLP to have furnished to the Representatives, at the Execution Time
     and at the Closing Date, letters, dated respectively as of the Execution
     Time and as of the Closing Date, in form and substance reasonably
     satisfactory to the Representatives, confirming that they are independent
     accountants within the meaning of the Act and the Exchange Act and the
     respective applicable rules and regulations adopted by the
<PAGE>

                                                                              12

     Commission thereunder and Rule 101 of the Code of Professional Conduct of
     the American Institute of Certified Public Accountants and stating in
     effect that:

               (i)    in their opinion the audited financial statements and
          financial statement schedules included or incorporated by reference in
          the Registration Statement and the Final Prospectus and reported on by
          them comply as to form in all material respects with the applicable
          accounting requirements of the Act and the Exchange Act and the
          related rules and regulations adopted by the Commission;

               (ii)   nothing came to their attention which caused them to
          believe that the information included or incorporated by reference in
          the Registration Statement and the Final Prospectus in response to
          Regulation S-K, Item 301 (Selected Financial Data) and Item 503(d)
          (Ratio of Earnings to Fixed Charges) is not in conformity with the
          applicable disclosure requirements of Regulation S-K; and

               (iii)   they have performed certain other specified procedures as
          a result of which they determined that certain information of an
          accounting, financial or statistical nature (which is limited to
          accounting, financial or statistical information derived from the
          general accounting records of the Company and its subsidiaries) set
          forth in the Final Prospectus and the information included or
          incorporated by reference in the Company's Annual Report on Form 10-K
          for the year ended December 31, 1998 and the Proxy Statement on
          Schedule 14A dated April 28, 1999, incorporated by reference in the
          Registration Statement and the Final Prospectus, agrees with the
          accounting records of the Company and its subsidiaries, excluding any
          questions of legal interpretation.

          All references in this Section 6(g) to the Registration Statement or
     the Final Prospectus shall be deemed to include any amendment or supplement
     thereto at the date of the letter.

          (h)  At the Execution Time and at the Closing Date, Arthur Andersen
     LLP shall have furnished to the Representatives a letter or letters, dated
     respectively as of the Execution Time and as of the Closing Date, in form
     and substance reasonably satisfactory to the Representatives, confirming
     that they are independent accountants within the meaning of the Act and the
     Exchange Act and the applicable rules and regulations thereunder and Rule
     101 of the Code of Professional Conduct of the American Institute of
     Certified Public Accountants and stating in effect that:

               (i)    in their opinion the audited financial statements and
          financial statement schedules included or incorporated by reference in
          the Registration Statement and the Final Prospectus and reported on by
          them comply as to form in all material respects with the applicable
          accounting requirements of the Act and the Exchange Act and the
          related rules and regulations adopted by the Commission;

               (ii)   based upon (x) their review, in accordance with standards
          established under Statement on Auditing Standards No. 71, of the
          unaudited interim financial information included in the Company's
          quarterly report on
<PAGE>

                                                                              13

          Form 10-Q for the three-month and six-month periods ended June 30,
          1999 and 1998, included or incorporated by reference in the
          Registration Statement and Final Prospectus, and (y) with respect to
          the period subsequent to June 30, 1999, including the reading of the
          minutes and inquiries of certain officials of the Company who have
          responsibility for financial and accounting matters and certain other
          limited procedures requested by the Representatives and described in
          detail in such letter, nothing has come to their attention that causes
          them to believe that:

                      (1) any unaudited financial statements included or
                 incorporated by reference in the Registration Statement and the
                 Final Prospectus do not comply as to form in all material
                 respects with applicable accounting requirements of the Act and
                 with the related rules and regulations adopted by the
                 Commission with respect to financial statements included or
                 incorporated by reference in quarterly reports on Form 10-Q
                 under the Exchange Act; and said unaudited financial statements
                 are not in conformity with generally accepted accounting
                 principles applied on a basis substantially consistent with
                 that of the audited financial statements included or
                 incorporated by reference in the Registration Statement and the
                 Final Prospectus;

                      (2) with respect to the period subsequent to June 30,
                 1999, there were any increases, at a specified date not more
                 than five business days prior to the date of the letter, in the
                 long-term debt of the Company and its subsidiaries or decreases
                 in the stockholders' equity of the Company or decreases in
                 total current assets of the Company and its subsidiaries or any
                 change in capital stock of the Company and its subsidiaries, as
                 compared with the amounts shown on the June 30, 1999
                 consolidated balance sheet included as an attachment to the
                 letter or letters referred to in this paragraph or for the
                 period from July 1, 1999, to such specified date there were any
                 decreases, as compared with the corresponding period in the
                 immediately preceding quarter, in revenue, cost of revenue,
                 operating earnings, EBITDA (as defined in the Final Prospectus)
                 or in total or per share amounts of net earnings, except in all
                 instances for increases, changes or decreases set forth in such
                 letter, in which case the letter shall be accompanied by an
                 explanation by the Company as to the significance thereof
                 unless said explanation is not deemed necessary by the
                 Representatives; and

                      (3) the information included or incorporated by reference
                 in the Registration Statement and the Final Prospectus in
                 response to Regulation S-K, Item 301 (Selected Financial Data)
                 and Item 503(d) (Ratio of Earnings to Fixed Charges) is not in
                 conformity with the applicable disclosure requirements of
                 Regulation S-K; and

          (iii)  they have performed certain other specified procedures as a
          result of which they determined that certain information of an
          accounting, financial or statistical nature (which is limited to
          accounting, financial or statistical information derived from the
          general accounting records of the Company and its subsidiaries) set
          forth in the Registration Statement and the Final
<PAGE>

                                                                              14

          Prospectus and in Exhibit 12 to the Registration Statement, and the
          information included or incorporated by reference in the Company's
          Annual Report on Form 10-K for the year ended December 31, 1998, Proxy
          Statement on Schedule 14A dated April 28, 1999, Quarterly Reports on
          Form 10-Q for the quarters ended March 31, 1999 and June 30, 1999 and
          amended Quarterly Reports on Form 10-Q/A for the quarters ended June
          30, 1998 and September 30, 1998, incorporated by reference in the
          Registration Statement and the Final Prospectus, agrees with the
          accounting records of the Company and its subsidiaries, excluding any
          questions of legal interpretation.

          All references in this Section 6(h) to the Registration Statement or
     the Final Prospectus shall be deemed to include any amendment or supplement
     thereto at the date of the letter.

          (i)  Subsequent to the Execution Time or, if earlier, the dates as of
     which information is given in the Registration Statement (exclusive of any
     amendment thereof) and the Final Prospectus (exclusive of any supplement
     thereto), there shall not have been (i) any increase, change or decrease
     specified in the letter or letters referred to in paragraph (h) of this
     Section 6 or (ii) any change, or any development involving a prospective
     change, in or affecting the properties, business, results of operations,
     financial condition, affairs or business prospects of the Company and its
     subsidiaries, taken as a whole, whether or not arising from transactions in
     the ordinary course of business, except as set forth in or contemplated in
     the Final Prospectus (exclusive of any supplement thereto) the effect of
     which, in any case referred to in clause (i) or (ii) above, is, in the sole
     judgment of the Representatives, so material and adverse as to make it
     impractical or inadvisable to proceed with the offering or delivery of the
     Securities as contemplated by the Final Prospectus (exclusive of any
     supplement thereto).

          (j)  Subsequent to the Execution Time, there shall not have been (i)
     any decrease in the rating of any of the Company's debt securities by any
     "nationally recognized statistical rating organization" (as defined for
     purposes of Rule 436(g) under the Securities Act) or (ii) any notice given
     of any intended or potential decrease in any such rating or that such
     organization has under surveillance or review (other than any such notice
     with positive implications of a possible upgrading) its rating of the
     Company's debt securities.

          (k)  The Common Stock issuable upon conversion of the Securities shall
     have been listed and admitted and authorized for trading, subject to
     official notice of issuance, on the Nasdaq National Market, and reasonably
     satisfactory evidence of such actions shall have been provided to the
     Representatives.

          (l)  Prior to the Closing Date, the Company shall have furnished to
     the Representatives such further information, certificates and documents as
     the Representatives may reasonably request.

          If any of the conditions specified in this Section 6 shall not have
been fulfilled in all material respects when and as provided in this Agreement,
or if any of the opinions and certificates mentioned above or elsewhere in this
Agreement shall not be in all material respects reasonably satisfactory in form
and substance to the Representatives and counsel for the Underwriters, this
Agreement and all obligations of the Underwriters hereunder may be
<PAGE>

                                                                              15

canceled at, or at any time prior to, the Closing Date by the Repre sentatives.
Notice of such cancelation shall be given to the Company in writing or by
telephone or facsimile confirmed in writing.

          The documents required to be delivered by this Section 6 shall be
delivered at the office of Cravath, Swaine & Moore, counsel for the
Underwriters, at 825 Eighth Avenue, New York, New York 10019, on the Closing
Date.

          7.  Reimbursement of Underwriters' Expenses.  If the sale of the
              ----------------------------------------
Securities provided for herein is not consummated because any condition to the
obligations of the Underwriters set forth in Section 6 hereof is not satisfied,
because of any termination pursuant to Section 10 hereof or because of any
refusal, inability or failure on the part of the Company to perform any
agreement herein or comply with any provision hereof, in each case, other than
by reason of a default by any of the Underwriters, the Company will reimburse
the Underwriters severally through Goldman, Sachs & Co. on demand for all
reasonable out-of-pocket expenses (including reasonable fees and disbursements
of counsel) that shall have been incurred by them in connection with the
proposed purchase and sale of the Securities.  Except as provided in the
preceding sentence or elsewhere in this Agreement, the Underwriters shall be
responsible for all costs and expenses incurred by them in connection with their
purchase of the Securities hereunder and the resale of any of the Securities,
including, without limitation, their own out-of-pocket lodging, meal and other
"roadshow" expenses and fees and disbursements of counsel for the Underwriters
and (ii) such other "roadshow" expenses as shall be agreed upon by the Company
and the Representatives.

          8.  Indemnification and Contribution.  (a)  The Company agrees to
              ---------------------------------
indemnify and hold harmless each Underwriter, the directors, officers, employees
and agents of each Underwriter and each person who controls any Underwriter
within the meaning of either the Act or the Exchange Act against any and all
losses, claims, damages or liabilities, joint or several, to which they or any
of them may become subject under the Act, the Exchange Act or other Federal or
state statutory law or regulation, at common law or otherwise, insofar as such
losses, claims, damages or liabilities (or actions in respect thereof) arise out
of or are based upon any untrue statement or alleged untrue statement of a
material fact contained in the Registration Statement as originally filed or in
any amendment thereof, or in the Basic Prospectus, any Preliminary Final
Prospectus or the Final Prospectus, or in any amendment thereof or supplement
thereto, or arise out of or are based upon the omission or alleged omission to
state therein a material fact required to be stated therein or necessary to make
the statements therein not misleading, and agrees to reimburse each such
indemnified party, as incurred, for any legal or other expenses reasonably
incurred by them in connection with investigating or defending any such loss,
claim, damage, liability or action; provided, however, that the Company will not
                                    --------  -------
be liable in any such case to the extent that any such loss, claim, damage or
liability arises out of or is based upon any such untrue statement or alleged
untrue statement or omission or alleged omission made therein in reliance upon
and in conformity with written information furnished to the Company by or on
behalf of any Underwriter through the Representatives specifically for inclusion
therein; provided further, that with respect to any untrue statement or omission
         ----------------
of material fact made in the Basic Prospectus or any Preliminary Final
Prospectus, the indemnity agreement contained in this Section 8(a) shall not
inure to the benefit of any Underwriter from whom the person asserting any such
loss, claim, damage or liability purchased the securities concerned, to the
extent that any such loss, claim, damage or liability of such Underwriter occurs
under the circumstance where it shall have been determined by a court of
competent jurisdiction by final and
<PAGE>

                                                                              16

nonappealable judgment that such loss, claim, damage or liability results from
the fact that (i) the Company had previously furnished copies of the Final
Prospectus to the Representatives, (ii) delivery of the Final Prospectus was
required by the Act to be made to such person, (iii) the untrue statement or
omission of a material fact contained in the Basic Prospectus or the Preliminary
Final Prospectus was corrected in the Final Prospectus, (iv) there was not sent
or given to such person, at or prior to the written confirmation of the sale of
such securities to such person, a copy of the Final Prospectus and (v) such
correction would have cured the defect giving rise to such loss, claim, damage
or liability. This indemnity agreement will be in addition to any liability
which the Company may otherwise have.

          (b)  Each Underwriter severally and not jointly agrees to indemnify
and hold harmless the Company, each of its directors, each of its officers who
signs the Registration Statement, and each person who controls the Company
within the meaning of either the Act or the Exchange Act, to the same extent as
the foregoing indemnity from the Company to each Underwriter, but only with
reference to written information relating to such Underwriter furnished to the
Company by or on behalf of such Underwriter through the Representatives
specifically for inclusion in the documents referred to in the foregoing
indemnity.  This indemnity agreement will be in addition to any liability which
any Underwriter may otherwise have.

          (c)  Promptly after receipt by an indemnified party under this Section
8 of notice of the commencement of any action, such indemnified party will, if a
claim in respect thereof is to be made against the indemnifying party under this
Section 8, notify the indemnifying party in writing of the commencement thereof;
but the failure so to notify the indemnifying party (i) will not relieve it from
liability under paragraph (a) or (b) above unless and to the extent it did not
otherwise learn of such action and such failure results in the forfeiture by the
indemnifying party of substantial rights and defenses and (ii) will not, in any
event, relieve the indemnifying party from any obligations to any indemnified
party other than the indemnification obligation provided in paragraph (a) or (b)
above.  The indemnifying party shall be entitled to appoint counsel of the
indemnifying party's choice at the indemnifying party's expense to represent the
indemnified party in any action for which indemnification is sought (in which
case the indemnifying party shall not thereafter be responsible for the fees and
expenses of any separate counsel retained by the indemnified party or parties
except as set forth below); provided, however, that such counsel shall be
                            --------  -------
reasonably satisfactory to the indemnified party.  Notwithstanding the
indemnifying party's election to appoint counsel to represent the indemnified
party in an action, the indemnified party shall have the right to employ
separate counsel (including local counsel), and the indemnifying party shall
bear the reasonable fees, costs and expenses of such separate counsel if (i) the
use of counsel chosen by the indemnifying party to represent the indemnified
party would present such counsel with a conflict of interest, (ii) the actual or
potential defendants in, or targets of, any such action include both the
indemnified party and the indemnifying party and the indemnified party shall
have reasonably concluded that there may be legal defenses available to it
and/or other indemnified parties which are different from or additional to those
available to the indemnifying party, (iii) the indemnifying party shall not have
employed counsel reasonably satisfactory to the indemnified party to represent
the indemnified party within a reasonable time after notice of the institution
of such action or (iv) the indemnifying party shall authorize the indemnified
party to employ separate counsel at the expense of the indemnifying party.  An
indemnifying party will not, without the prior written consent of the
indemnified parties, settle or compromise or consent to the entry of any
judgment with respect to any pending or threatened claim, action, suit or
<PAGE>

                                                                              17

proceeding in respect of which indemnification or contribution may be sought
hereunder (whether or not the indemnified parties are actual or potential
parties to such claim or action) unless such settlement, compromise or consent
(i) includes an unconditional release of each indemnified party from all
liability arising out of such claim, action, suit or proceeding and (ii) does
not include a statement as to or an admission of fault, culpability or a failure
to act, by or on behalf of any indemnified party.  It is understood, however,
that the Company shall, in connection with any one such action or separate but
substantially similar or related actions in the same jurisdiction arising out of
the same general allegations or circumstances, be liable for the reasonable fees
and expenses of only one separate firm of attorneys (in addition to any local
counsel) at any time for all such Underwriters and controlling persons, which
firm shall be designated in writing by Goldman, Sachs & Co.  An indemnifying
party shall not be liable under this Section 8 to any indemnified party
regarding any settlement or compromise or consent to the entry of any judgment
with respect to any pending or threatened claim, action, suit or proceeding in
respect of which indemnification or contribution may be sought hereunder
(whether or not the indemnified parties are actual or potential parties to such
claim or action) unless such settlement, compromise or consent is consented to
by such indemnifying party, which consent shall not be unreasonably withheld.

          (d)  In the event that the indemnity provided in paragraph (a) or (b)
of this Section 8 is unavailable to or insufficient to hold harmless an
indemnified party for any reason, the Company and the Underwriters severally
agree to contribute to the aggregate losses, claims, damages and liabilities
(including legal or other expenses reasonably incurred in connection with
investigating or defending same) (collectively "Losses") to which the Company
and one or more of the Underwriters may be subject in such proportion as is
appropriate to reflect the relative benefits received by the Company on the one
hand and by the Underwriters on the other from the offering of the Securities;
provided, however, that in no case shall any Underwriter (except as may be
- --------  -------
provided in any agreement among underwriters relating to the offering of the
Securities) be responsible for any amount in excess of the underwriting discount
or commission applicable to the Securities purchased by such Underwriter
hereunder.  If the allocation provided by the immediately preceding sentence is
unavailable for any reason, the Company and the Underwriters severally shall
contribute in such proportion as is appropriate to reflect not only such
relative benefits but also the relative fault of the Company on the one hand and
of the Underwriters on the other in connection with the statements or omissions
which resulted in such Losses as well as any other relevant equitable
considerations.  Benefits received by the Company shall be deemed to be equal to
the total net proceeds from the offering (before deducting expenses) received by
it, and benefits received by the Underwriters shall be deemed to be equal to the
total underwriting discounts and commissions, in each case as set forth on the
cover page of the Final Prospectus.  Relative fault shall be determined by
reference to, among other things, whether any untrue or any alleged untrue
statement of a material fact or the omission or alleged omission to state a
material fact relates to information provided by the Company on the one hand or
the Underwriters on the other, the intent of the parties and their relative
knowledge, access to information and opportunity to correct or prevent such
untrue statement or omission.  The Company and the Underwriters agree that it
would not be just and equitable if contribution were determined by pro rata
allocation or any other method of allocation which does not take account of the
equitable considerations referred to above. Notwithstanding the provisions of
this paragraph (d), no person guilty of fraudulent misrepresentation (within
the meaning of Section 11(f) of the Act) shall be entitled to contribution from
any person who was not guilty of such fraudulent misrepresentation.  For
purposes of this Section 8, each person who controls an Underwriter within the
meaning of either the Act or the Exchange Act and each director, officer,
employee and agent of an Underwriter shall
<PAGE>

                                                                              18

have the same rights to contribution as such Underwriter, and each person who
controls the Company within the meaning of either the Act or the Exchange Act,
each officer of the Company who shall have signed the Registration Statement and
each director of the Company shall have the same rights to contribution as the
Company, subject in each case to the applicable terms and conditions of this
paragraph (d).

          9.   Default by an Underwriter.  If any one or more Underwriters shall
               --------------------------
fail to purchase and pay for any of the Securities agreed to be purchased by
such Underwriter or Underwriters hereunder and such failure to purchase shall
constitute a default in the performance of its or their obligations under this
Agreement, the remaining Underwriters shall be obligated severally to take up
and pay for (in the respective proportions which the amount of Securities set
forth opposite their names in Schedule I hereto bears to the aggregate amount of
Securities set forth opposite the names of all the remaining Under  writers) the
Securities which the defaulting Underwriter or Underwriters agreed but failed to
purchase; provided, however, that in the event that the aggregate amount of
          --------  -------
Securities which the defaulting Underwriter or Underwriters agreed but failed to
purchase shall exceed 10% of the aggregate amount of Securities set forth in
Schedule I hereto, the remaining Underwriters shall have the right to purchase
all, but shall not be under any obligation to purchase any, of the Securities,
and if such nondefaulting Underwriters do not purchase all the Securities, this
Agreement will terminate without liability to any nondefaulting Underwriter or
the Company.  In the event of a default by any Underwriter as set forth in this
Section 9, the Closing Date shall be postponed for such period, not exceeding
five Business Days, as the Representatives shall determine in order that the
required changes in the Registration Statement and the Final Prospectus or in
any other documents or arrangements may be effected.  Nothing contained in this
Agreement shall relieve any defaulting Underwriter of its liability, if any, to
the Company and any nondefaulting Underwriter for damages occasioned by its
default hereunder.

          10.  Termination.  This Agreement shall be subject to termination in
               ------------
the absolute discretion of the Representatives, by notice given to the Company
prior to delivery of and payment for the Securities, if at any time prior to
such time (i) trading in the Company's Common Stock shall have been suspended by
the Commission or the Nasdaq National Market or trading in securities generally
on the New York Stock Exchange or the Nasdaq National Market shall have been
suspended or limited or minimum prices shall have been established on such
Exchange or the Nasdaq National Market, (ii) a banking moratorium shall have
been declared either by Federal or New York State authorities or (iii) there
shall have occurred any outbreak or escalation of hostilities, declaration by
the United States of a national emergency or war, or other calamity or crisis
the effect of which on financial markets is such as to make it, in the sole
judgment of the Representatives, impractical or inadvisable to proceed with the
offering or delivery of the Securities as contemplated by the Final Prospectus
(exclusive of any supplement thereto).

          11.  Representations and Indemnities to Survive. The respective
               -------------------------------------------
agreements, representations, warranties, indemnities and other statements of the
Company or its officers and of the Underwriters set forth in or made pursuant to
this Agreement will remain in full force and effect, regardless of any
investigation made by or on behalf of any Underwriter or the Company or any of
the officers, directors, employees, agents or controlling persons referred to in
Section 8 hereof, and will survive delivery of and payment for the Securities.
The provisions of Sections 7 and 8 hereof shall survive the termination or
cancelation of this Agreement.
<PAGE>

                                                                              19

          12.  Notices.  All communications hereunder will be in writing and
               --------
effective only on receipt, and, if sent to the Representatives, will be mailed,
delivered or telefaxed to Goldman, Sachs & Co., at 32 Old Slip, 21st Floor, New
York, New York, 10005, Attention: Registration Department; or, if sent to the
Company, will be mailed, delivered or telefaxed to Level 3 Communications, Inc.
(fax no.: (303) 926-3467) Attention: General Counsel and confirmed to it at 1025
Eldorado Boulevard, Broomfield, Colorado 80021, Attention: General Counsel.

          13.  Successors.  This Agreement will inure to the benefit of and be
               -----------
binding upon the parties hereto and their respective successors and the
officers, directors, employees, agents and controlling persons referred to in
Section 8 hereof, and no other person will have any right or obligation
hereunder.

          14.  Applicable Law.  This Agreement will be governed by and construed
               ---------------
in accordance with the laws of the State of New York applicable to contracts
made and to be performed within the State of New York.

          15.  Counterparts.  This Agreement may be signed in one or more
               ------------
counterparts, each of which shall constitute an original and all of which
together shall constitute one and the same agreement.

          16.  Headings.  The section headings used herein are for convenience
               ---------
only and shall not affect the construction hereof.

          17.  Definitions.  The terms which follow, when used in this
               ------------
Agreement, shall have the meanings indicated.

          "Act" shall mean the Securities Act of 1933, as amended, and the rules
     and regulations of the Commission promulgated thereunder.

          "Basic Prospectus" shall mean the prospectus referred to in Section
     1(a) above contained in the Registration Statement at the Effective Date,
     including the Preliminary Final Prospectus (if any).

          "Business Day" shall mean any day other than a Saturday, a Sunday or a
     legal holiday or a day on which banking institutions or trust companies are
     authorized or obligated by law to close in New York City.

          "Commission" shall mean the Securities and Exchange Commission.

          "Effective Date" shall mean each date and time that the Registration
     Statement, any post-effective amendment or amendments thereto and any Rule
     462(b) Registration Statement became or become effective.

          "Exchange Act" shall mean the Securities Exchange Act of 1934, as
     amended, and the rules and regulations of the Commission promulgated
     thereunder.

          "Execution Time" shall mean the date and time that this Agreement is
     executed and delivered by the parties hereto.
<PAGE>

                                                                              20

          "Final Prospectus" shall mean the prospectus supplement relating to
     the Securities that was first filed pursuant to Rule 424(b) after the
     Execution Time, together with the Basic Prospectus.

          "Major Market Index" shall mean the Dow Jones Industrial Average or
     Standard and Poor's 500 Stock Index.

          "Preliminary Final Prospectus" shall mean any preliminary prospectus
     supplement to the Basic Prospectus which describes the Securities and the
     offering thereof and is used prior to filing of the Final Prospectus,
     together with the Basic Prospectus.

          "Registration Statement" shall mean the registration statement
     referred to in Section 1(a) above, including exhibits and financial
     statements, as amended at the Execution Time (or, if not effective at the
     Execution Time, in the form in which it shall become effective) and, in the
     event any post-effective amendment thereto or any Rule 462(b) Registration
     Statement becomes effective prior to the Closing Date, shall also mean such
     registration statement as so amended or such Rule 462(b) Registration
     Statement, as the case may be.  Such term shall include any Rule 430A
     Information deemed to be included therein at the Effective Date as provided
     by Rule 430A.

          "Rule 415", "Rule 424", "Rule 430A" and "Rule 462" refer to such rules
     under the Act.

          "Rule 430A Information" shall mean information with respect to the
     Securities and the offering thereof permitted to be omitted from the
     Registration Statement when it becomes effective pursuant to Rule 430A.

          "Rule 462(b) Registration Statement" shall mean a registration
     statement and any amendments thereto filed pursuant to Rule 462(b) relating
     to the offering covered by the registration statement referred to in
     Section 1(a) hereof.
<PAGE>

                                                                              21


          If the foregoing is in accordance with your understanding of our
agreement, please sign and return to us the enclosed duplicate hereof, whereupon
this letter and your acceptance shall represent a binding agreement among the
Company and the several Underwriters.

                                         Very truly yours,



                                         Level 3 Communications, Inc.



                                         By: /s/ Kevin J. O'Hara
                                             ---------------------------
                                             Name:  Kevin J. O'Hara
                                             Title: Executive Vice President

The foregoing Agreement is hereby
confirmed and accepted as of the
date specified in Schedule I hereto

Goldman, Sachs & Co.
Salomon Smith Barney Inc.
Chase Securities Inc.
Credit Suisse First Boston Corporation
J. P. Morgan Securities Inc.
Morgan Stanley & Co. Incorporated

By: Goldman, Sachs & Co.



By: /s/ Goldman, Sachs & Co.
    ---------------------------------
    Name:  Kenneth L. Joslyn
    Title: Vice President

For themselves and the other
several Underwriters, if any, named
in Schedule I to the foregoing
Agreement.
<PAGE>

                                  SCHEDULE I

<TABLE>
<CAPTION>
                                                  Principal Amount of Firm
Underwriters                                      Securities to be Purchased
- ------------                                      --------------------------
<S>                                               <C>
Goldman, Sachs & Co.............................         $255,200,000
Salomon Smith Barney Inc........................          255,200,000
Chase Securities Inc............................           31,900,000
Credit Suisse First Boston Corporation..........           31,900,000
J. P. Morgan Securities Inc.....................           31,900,000
Morgan Stanley & Co. Incorporated...............           31,900,000
Lazard Freres & Co. LLC.........................           16,000,000
BNY Capital Markets, Inc........................           16,000,000
Credit Lyonnais Securities (USA) Inc............           16,000,000
Dresdner Kleinwort Benson North America LLC.....           16,000,000
First Union Capital Markets Corp................           16,000,000
Janco Partners, Inc.............................           16,000,000
Kirkpatrick, Pettis, Smith, Polian Inc..........           16,000,000
                                                         ------------
     Total......................................         $750,000,000
                                                         ============
</TABLE>
<PAGE>

                                  SCHEDULE II

Subsidiaries
- ------------

PKS Information Services, Inc.
Level 3 Holdings, Inc.
KCP, Inc.
Level 3 Telecom Holdings, Inc.
Level 3 Communications, LLC
<PAGE>

                                   EXHIBIT A

                                  Opinion of
                                  ----------
                           Willkie Farr & Gallagher
                           ------------------------
                            Counsel for the Company
                            -----------------------


          1.  Each of the Company and Level 3 Communications, LLC has been duly
incorporated and is validly existing as a corporation in good standing under the
laws of the jurisdiction in which it is chartered or organized, with full power
and authority to own or lease, as the case may be, and to operate its properties
and conduct its business as described in the Final Prospectus.

          2.  All the outstanding shares of capital stock or other equity
interests of the Company and Level 3 Communications, LLC have been duly and
validly authorized and are duly issued and are fully paid and nonassessable, and
have not been issued and are not owned or held in violation of any statutory
preemptive right of stockholders; to the knowledge of such counsel after due
inquiry, such shares or other equity interests are not held in violation of any
other preemptive right of stockholders or other equity interest holders, and
except as otherwise set forth in the Final Prospectus, all outstanding equity
interests of Level 3 Communications, LLC are owned by the Company either
directly or through wholly owned subsidiaries, to the knowledge of such counsel,
after due inquiry, free and clear of any agreement providing for a security
interest in such equity interests to secure any obligation and any stockholders=
agreements, voting trusts, claims or other encumbrances.

          3.  (i) To the best knowledge of such counsel, there is no pending or
threatened action, suit or proceeding by or before any court or governmental
agency, authority or body or any arbitrator involving the Company or any of its
Subsidiaries or its or their property of a character required to be disclosed in
the Registration Statement which is not adequately disclosed or incorporated by
reference in the Final Prospectus, and (ii) to the best knowledge of such
counsel, there is no contract or other document of a character required to be
described in the Registration Statement or the Final Prospectus, or to be filed
as an exhibit thereto, which is not described or filed as required; and the
statements included in the Final Prospectus under the heading "Description of
Notes," "Description of Common Stock" and "Description of Outstanding Capital
Stock," insofar as such sections summarize the terms of the Securities, the
Common Stock and the Indenture, and under the heading "Certain United States Tax
Consequences to Non-United States Holders", insofar as such section summarizes
matters of law, fairly summarize the matters therein described.

          4.  The Registration Statement has become effective under the Act; any
required filing of the Basic Prospectus, any Preliminary Final Prospectus and
the Final Prospectus and any supplements thereto, pursuant to Rule 424(b) has
been made in the manner and within the time period required by Rule 424(b); to
the knowledge of such counsel, no stop order suspending the effectiveness of the
Registration Statement has been issued, no proceedings for that purpose have
been instituted or threatened and the Registration Statement and the Final
Prospectus (other than the financial statements and other financial information
contained therein or omitted therefrom, as to which such counsel need express no
opinion) comply as to form in all material respects with the applicable
requirements of the Act and the Exchange Act and the respective rules
thereunder.
<PAGE>

                                                                               2

          5.  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 Prospectus, will not be an "investment company" as defined in the
Investment Company Act of 1940, as amended.

          6.  To the best knowledge of such counsel, no consent, approval,
authorization, license, certificate, permit or order of any court or
governmental agency or body is required for the execution, delivery and
performance of this Agreement and the Securities or for the consummation of the
transactions contemplated hereby, except such as may be required by the Federal
Communications Commission or similar state regulatory authorities or under the
blue sky laws of any jurisdiction in connection with the purchase and
distribution of the Securities by the Underwriters (as to which such counsel
need not opine) and such other approvals (to be specified in such opinion) as
have been obtained.

          7.  Neither the execution and delivery of this Agreement, nor the
issue and sale of the Securities, nor the consummation of any other of the
transactions herein contemplated nor the fulfillment of the terms thereof will
conflict with, result in a breach of, or constitute a default under the
certificate of incorporation, by-laws or other organizational documents of the
Company or of any Subsidiary or the terms of any agreement or instrument listed
on Annex I hereto, or any judgment, order or regulation known to such counsel to
be applicable to the Company or any of its Subsidiaries of any court, regulatory
body, administrative agency, governmental agency, authority or body or
arbitrator having jurisdiction over the Company or any of its Subsidiaries,
except orders or regulations of the Federal Communications Commission or similar
state regulatory authorities or regulations of any state securities commission
(as to which such counsel need not opine).

          8.  To the knowledge of such counsel, no holders of securities of the
Company have rights to the registration of such securities in connection with or
as a result of the offering and sale of the Securities under this Agreement.

          9.  The Company's authorized equity capitalization as of June 30,
1999, is as set forth in the Final Prospectus; the capital stock of the Company
conforms in all material respects to the description thereof contained in the
Final Prospectus; the shares of Common Stock initially issuable upon conversion
of the Securities have been duly and validly authorized, and, when issued upon
conversion against payment of the conversion price and in accordance with the
terms of the Indenture, will be validly issued, fully paid and nonassessable;
the Board of Directors of the Company or a duly constituted committee thereof,
has duly and validly adopted resolutions reserving such shares of Common Stock
for issuance upon conversion; and the holders of outstanding shares of capital
stock of the Company are not entitled to preemptive or other rights to subscribe
for the Securities; and, except as set forth in the Final Prospectus and, except
for outstanding warrants and options to purchase shares of Common Stock that in
the aggregate represent less than 1% of the Common Stock outstanding on the date
of this Agreement, to the knowledge of such counsel, no options, warrants or
other rights to purchase, agreements or other obligations to issue, or rights to
convert any obligations into or exchange any securities for, shares of capital
stock of or ownership interests in the Company are outstanding.

          10. The Securities have been duly authorized and, when executed and
authenticated in accordance with the provisions of the Indenture and delivered
to and paid for by the Underwriters in accordance with the terms of the
Underwriting Agreement, will constitute valid and legally binding obligations of
the Company entitled to the benefits of the
<PAGE>

                                                                               3

Indenture, subject, as to enforcement, to bankruptcy, insolvency, fraudulent
transfer, reorganization, moratorium and other laws of general applicability
relating to or affecting creditors' rights and to general equity principles.

          11. The Indenture has been duly authorized, executed and delivered by
the Company and constitutes a valid and legally binding obligation of the
Company, enforceable in accordance with its terms, subject, as to enforcement,
to bankruptcy, insolvency, fraudulent transfer, reorganization, moratorium and
other laws of general applicability relating to or affecting creditors' rights
and to general equity principles; and the Indenture has been duly qualified
under the Trust Indenture Act.

          12. The Company has full corporate right, power and authority to
execute and deliver this Agreement and to perform its obligations hereunder,
including the issuance of the Securities; and all corporate action required to
be taken by the Company for the due and proper authorization, execution and
delivery of this Agreement and for the consummation of the transactions
contemplated hereby has been duly and validly taken.

          13. This Agreement has been duly authorized, validly executed and
delivered by the Company.

          In addition, such counsel shall state that they have participated in
conferences with representatives of the Company, the Underwriters and their
counsel, at which conferences the contents of the Final Prospectus were
discussed, and, although, except as otherwise described above, such counsel has
not independently checked or verified and does not pass upon and assumes no
responsibility for the factual accuracy, completeness or fairness of the
statements contained in the Registration Statement or the Final Prospectus, such
counsel has no reason to believe that on the Effective Date or at the Execution
Time the Registration Statement contained any untrue statement of a material
fact or omitted to state any material fact required to be stated therein or
necessary to make the statements therein not misleading or that the Final
Prospectus as of its date or on the Closing Date included or includes any untrue
statement of a material fact or omitted or omits to state a material fact
necessary to make the statements therein, in the light of the circumstances
under which they were made, not misleading (in each case, other than the
financial statements and other financial information contained therein or
omitted therefrom and other than the sections entitled "Risk Factors--We are
subject to significant regulation that could change in an adverse manner", A--
Canadian law currently does not permit us to offer services in Canada" and A--
Potential regulation of internet service providers could adversely affect our
operations" and "Business--Regulation" included in the Final Prospectus and
comparable sections in the Company's Exchange Act reports incorporated in the
Final Prospectus by reference, as to which such counsel need not express a
belief).

          Such opinion may be limited to the laws of the State of New York, the
Federal laws of the United States of America and the General Corporation Law and
the Limited Liability Company Act of the State of Delaware.

          All references in this Exhibit A to the Final Prospectus shall be
deemed to include any supplements thereto at the Closing Date. The opinion of
such counsel shall be rendered to the Underwriters at the request of the Company
and shall so state.
<PAGE>

                                    ANNEX I
                                 to Exhibit A


1.   Construction and Maintenance Agreement relating to Japan-US Cable Network
     dated July 31, 1998.

2.   Fibre Optic Cable License Agreement, dated December 23, 1998, between
     Norfolk Southern Railway Company, Central of Georgia Railroad Company, and
     Georgia Southern and Florida Railway Company and Level 3 Communications,
     LLC.

3.   Agreement, dated November 19, 1998, between Worldwide Fibre Inc. and Level
     3 Communications, LLC for construction and right of way.

4.   Agreement, dated November 19, 1998, between Mi-Link LLC and Level 3
     Communications, LLC for construction and right of way

5.   Acquisition Agreement by and between CalEnergy Co., Inc. and Kiewit
     Diversified Group, Inc., dated September 10, 1997.

6.   Agreement and Plan of Merger among Level 3 Communications, Inc.,
     CrimsonAcqCo, Inc., XCOM Technologies, Inc. and certain individuals,
     partnerships and companies, dated April 3, 1998.

7.   Telecommunications Services Agreement between Frontier Communications
     International Inc. and Level 3 Communications, LLC, dated March 23, 1998.

8.   Fiber Optic Survey Agreement between Level 3 Communications, LLC and Union
     Pacific Rail Road Company, dated March 31, 1998.

9.   Fiber Optic Agreement between Level 3 Communications, LLC and Union Pacific
     Rail Road Company, dated 1998.

10.  Systems Integration Agreement by and between Level 3 Communications, LLC
     and Science Applications International Corporation, dated January 10, 1998.

11.  Agreement between Kiewit Coal Properties, Inc. and Kiewit Mining Group,
     Inc., dated January 8, 1992.

12.  Separation Agreement by and among Peter Kiewit Sons', Inc., Kiewit
     Diversified Group, Inc., PKS Holdings, Inc., and Kiewit Construction Group,
     Inc., dated December 8, 1997.

13.  Amendment to Separation Agreement by and among Peter Kiewit Sons', Inc.,
     Level 3 Communications, Inc., PKS Holdings, Inc. and Kiewit Construction
     Group, Inc., dated March 18, 1998.

14.  Tax Sharing Agreement by and between Peter Kiewit Sons', Inc. and PKS
     Holdings, Inc., dated March 26, 1998.
<PAGE>

                                                                               2

15.  Promissory Note from Peter Kiewit Sons' Co. to Metropolitan Life Insurance
     Company, dated June 27, 1997.

16.  Deed of Trust, Security Agreement and Fixture Filing by Peter Kiewit Sons'
     Co., to Metropolitan Life Insurance Company, dated June 27, 1997.

17.  Repayment and Cooperation Agreement between Orange County Transportation
     Authority and California Private Transportation Company, L.P., dated July
     13, 1992.

18.  Amendment to Repayment and Cooperation Agreement dated as of July 13, 1992,
     between Orange County Transportation Authority and California Private
     Transportation Company, L.P., dated July 13, 1992.

19.  Subordinated Promissory Note by Orange County Transportation Authority and
     California Private Transportation Company, L.P., dated July 20, 1993.

20.  Credit Agreement among California Private Transportation Company, L.P.,
     Bank Nationale de Paris, CitiCorp U.S.A., Inc. and Societe Generale, dated
     July 14, 1993.

21.  Cost Sharing and IRU Agreement among Level 3 Communications, LLC and
     Internext LLC, dated July 18, 1998.

22.  Master Right-of-Way Agreement among Level 3 Communications, LLC and The
     Burlington Northern and Santa Fe Railway Company, dated June 23, 1998.

23.  Intercity Network Infrastructure Contract between Level 3 Communications,
     LLC and Kiewit Construction Company, dated June 15, 1998.

24.  Global Master Procurement Agreement between BTE Equipment, LLC and Lucent
     Technologies Inc., dated May 17, 1999.

25.  Cross Channel Cables Agreement among France Manche S.A., The Channel Tunnel
     Group Limited, Level 3 Communications Limited and Level 3 Communications
     S.A., dated June 22, 1999.

26.  Fiber Optic Cable System Contract between Level 3 Communications Limited,
     Level 3 Communications S.A. and Alcatel Submarine Networks S.A., dated May
     14, 1999.

27.  Engineer, Procure and Construct Contract between Level 3 Communications,
     GmbH and Alcatel Contracting, GmbH dated March 30, 1999.

28.  Engineer, Procure and Construct Contract between Level 3 Communications,
     Ltd. and Fujitsu Telecommunications Europe, Ltd., dated March 19, 1999.

29.  Engineer, Procure and Construct Contract between Level 3 Communications, SA
     and Alcatel Contracting, SA dated April 9, 1999.

30.  Joint Build Agreement among Colt Telecom Group plc and certain of its
     subsidiaries and Level 3 International Inc. and certain of its
     subsidiaries, dated May 4, 1999.
<PAGE>

                                                                               3

31.  Supply Contract among Level 3 (Bermuda) Ltd., Level 3 Communications
     Limited, Level 3 International, Inc. and Tyco Submarine Systems Ltd., dated
     June 15, 1999.
<PAGE>

                                   EXHIBIT B

                                  Opinion of
                                  ----------
                      Swidler Berlin Shereff Friedman LLP
                      -----------------------------------
                      Regulatory Counsel for the Company
                      ----------------------------------


          1.  The licenses, certificates, permits and authorizations set forth
in Attachment A to this opinion constitute all of the licenses, certificates,
permits and authorizations required by the Federal Communications Commission
("FCC") and the State Regulatory Agencies (as defined below) for the provision
of telecommunications services by the Company and the Subsidiaries as such
counsel understands those services currently to be provided based on the
declaration of an executive officer of the Company attached to such opinion,
where the failure to obtain or hold such license, certificate, permit or
authorization would materially adversely affect the ability of the Company or
the Subsidiaries to provide such services, and none of the Company or any
Subsidiary has received any notice of proceedings relating to the revocation or
modification of any such license, certificate, permit or authorization which,
singly or in the aggregate, if the subject of an unfavorable decision, ruling or
finding, would have a material adverse affect on the Company or such Subsidiary,
in connection with the provision of such services.

          2.  To the best knowledge of such counsel, after reasonable inquiry,
neither the Company nor any of the Subsidiaries is subject to any pending or
threatened proceeding, complaint or investigation before the FCC or any State
Regulatory Agency based on any alleged violation by the Company or its
Subsidiaries in connection with the provision of or failure to provide
telecommunications services, of a character that would be required to be
disclosed or incorporated by reference in the Registration Statement and the
Final Prospectus, which is not adequately disclosed in the Registration
Statement and the Final Prospectus.

          3.  The statements included in the Final Prospectus under the headings
"Risk Factors--We are subject to significant regulation that could change in an
adverse manner", A--Canadian law currently does not permit us to offer services
in Canada" and A--Potential regulation of internet service providers could
adversely affect our operations" and "Business--Regulation", fairly summarize
the matters therein described.

          4.  No consent, approval, authorization, license, certificate, permit
or order of the FCC or any State Regulatory Agency is required for the
consummation of the transactions contemplated by this Agreement.

          5.  Neither the execution and delivery of this Agreement nor the issue
and sale of the Securities contemplated hereby will conflict with or result in a
breach or violation of the Communications Act of 1934, as amended, any order or
regulation of the FCC or any State Regulatory Agency applicable to the Company
or any of the Subsidiaries or cause the suspension, revocation, impairment,
forfeiture, nonrenewal or termination of any FCC license or other authorization
of the FCC.

          Such counsel has not itself checked the accuracy or completeness of,
or otherwise verified, the information furnished with respect to other matters
in the Registration Statement and the Final Prospectus. Such counsel has
generally reviewed and discussed with representatives of and counsel for the
Underwriters and with certain officers and employees
<PAGE>

                                                                               2

of, and counsel for, the Company the information furnished, whether or not
subject to its check and verification. Although such counsel has not
independently checked or verified and is neither passing upon nor assuming any
responsibility for the factual accuracy, completeness or fairness of the
statements contained in the Registration Statement and the Final Prospectus or
any amendment thereof or supplement thereto, nothing has come to its attention
which would cause it to believe that the statements included in the Final
Prospectus under the headings "Risk Factors--We are subject to significant
regulation that could change in an adverse manner", A--Canadian law currently
does not permit us to offer services in Canada" and A--Potential regulation of
internet service providers could adversely affect our operations" and "Business
- --Regulation", including the statements in respect to Canadian law or
regulation, on the date thereof or on the Closing Date contain an untrue
statement of 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.

          Such counsel's opinions may be based solely on the Communications Act
of 1934, as amended, decisions of the FCC and FCC rules and regulations,
comparable state statutes governing telecommunications, and the rules and
regulations of comparable state regulatory agencies with direct regulatory
jurisdiction over telecommunications matters in the states in which the Company
and the Subsidiaries provide intrastate services ("State Regulatory Agencies").
Such counsel's opinion may be limited solely to matters arising under these
authorities regarding federal common carrier telecommunications regulatory
requirements and comparable state regulatory requirements in states in which the
Company and the Subsidiaries provide intrastate services.

          Such counsel is a member of the Bar of the District of Columbia. In
rendering this opinion, such counsel has relied as to certain matters of fact on
certificates of responsible officers of the Company and public officials.

          All references in this Exhibit B to the Registration Statement or the
Final Prospectus shall be deemed to include any amendment or supplement thereto
at the Closing Date. The opinion of such counsel shall be rendered to the
Underwriters at the request of the Company and shall so state.
<PAGE>

                                   EXHIBIT C

                                  Opinion of
                                  ----------
                   Thomas C. Stortz, Senior Vice President,
                   ----------------------------------------
                 General Counsel and Secretary of the Company
                 --------------------------------------------


          1.  Each of the Subsidiaries, other than Level 3 Communications, LLC
and Continental Holdings Inc., as to which such counsel need not opine, has been
duly incorporated or formed and is validly existing and in good standing in the
jurisdiction of its incorporation or formation, and has the requisite corporate
power and authority to carry on its business and own its properties as currently
being conducted and as described in the Final Prospectus.

          2.  All the outstanding shares of capital stock or other equity
interests of each Subsidiary, other than Level 3 Communications, LLC and
Continental Holdings Inc., as to which such counsel need not opine, have been
duly and validly authorized and are duly issued and are fully paid and
nonassessable, and have not been issued and are not owned or held in violation
of any statutory preemptive right of stockholders; to the knowledge of such
counsel after due inquiry, such shares or other equity interests are not held in
violation of any other preemptive right of stockholders, and except as otherwise
set forth in the Final Prospectus, all outstanding shares of capital stock or
other equity interests of the Subsidiaries are owned by the Company either
directly or through wholly owned Subsidiaries, to the knowledge of such counsel,
after due inquiry, free and clear of any agreement providing for a security
interest in such shares or equity interests to secure any obligation and any
stockholders= agreements, voting trusts, claims or other encumbrances.

          3.  Neither the execution and delivery of this Agreement nor the issue
and sale of the Securities, nor the consummation of any other of the
transactions herein contemplated nor the fulfillment of the terms thereof will
conflict with, result in a breach of, or constitute a default under the terms of
any indenture or other agreement or instrument actually known to such counsel,
after due inquiry (which does not include (i) a review of all the agreements or
instruments in the Company's files or of agreements or instruments such counsel
has not been involved with or (ii) a canvasing of the Company's employees), and
to which the Company or any Subsidiary is a party or bound or its property is
subject.

          4.  The information included in the Final Prospectus under the
headings "Risk Factors--Environmental liabilities from our historical operations
could be material" and "Business--Legal Proceedings", insofar as such headings
summarize matters of law, fairly summarize the matters therein described.

          Such opinion may be limited to the laws of the State of Nebraska, the
Federal laws of the United States of America and the General Corporation Law and
the Limited Liability Company Act of the State of Delaware.

          All references in this Exhibit C to the Final Prospectus shall be
deemed to include any supplement thereto at the Closing Date. The opinion of
such counsel shall be rendered to the Underwriters at the request of the Company
and shall so state.

<PAGE>

                                                                     EXHIBIT 4.1

                                                                  EXECUTION COPY

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



                          LEVEL 3 COMMUNICATIONS, INC.


                                      AND


                       IBJ WHITEHALL BANK & TRUST COMPANY
                                   as Trustee


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


                          FIRST SUPPLEMENTAL INDENTURE

                         DATED AS OF SEPTEMBER 20, 1999


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



            Supplement to Indenture dated as of September 20, 1999
                         (Subordinated Debt Securities)



       ================================================================
<PAGE>

                         FIRST SUPPLEMENTAL INDENTURE


          FIRST SUPPLEMENTAL INDENTURE, dated as of September 20, 1999 by and
between LEVEL 3 COMMUNICATIONS, INC., a Delaware corporation (hereinafter called
the "Company"), and IBJ WHITEHALL BANK & TRUST COMPANY, a corporation duly
organized and existing under the laws of the State of New York (hereinafter
called the "Trustee"), having a Corporate Trust Office at One State Street, New
York, New York, 10004, as Trustee under the Indenture (as hereinafter defined).


                                    RECITALS

          WHEREAS, the Company and the Trustee have as of September 20, 1999
entered into an Indenture (hereinafter called the "Indenture"), providing for
the issuance by the Company from time to time of its subordinated debt
securities;

          WHEREAS, no Securities have been issued under the Indenture and there
do not currently exist any Holders;

          WHEREAS, Section 901 of the Indenture provides, among other things,
that the Company, when authorized by or pursuant to a Board Resolution, and the
Trustee may without the consent of any Holders of Securities enter into one or
more indentures supplemental to the Indenture to establish the form or terms of
Securities of any series, including the provisions and procedures providing for
the adjustment of conversion rights with respect to Securities convertible into
Common Stock or to change or eliminate any of the provisions of the Indenture,
provided that any such change or elimination shall become effective only when
- --------
there is no Security Outstanding of any series created prior to the execution of
such supplemental indenture which is entitled to the benefit of such provision;

          WHEREAS, the Company desires to issue one series of convertible
subordinated debt securities under the Indenture, and has duly authorized the
creation and issuance of such debt securities and the execution and delivery of
this First Supplemental Indenture to modify the Indenture and provide certain
additional provisions as hereinafter described;

          WHEREAS, the Company and the Trustee deem it advisable to enter into
this First Supplemental Indenture for the purposes of establishing the terms of
such convertible subordinated debt securities and providing for the rights,
obligations and duties of the Trustee with respect to such debt securities;
<PAGE>

                                                                               2

          WHEREAS, concurrent with the execution hereof, the Company has
delivered an Officers' Certificate and has caused its counsel to deliver to the
Trustee an Opinion of Counsel or a reliance letter upon an opinion of counsel;
and

          WHEREAS, all conditions and requirements of the Indenture necessary to
make this First Supplemental Indenture a valid, binding and legal instrument in
accordance with its terms have been performed and fulfilled by the parties
hereto and the execution and delivery thereof have been in all respects duly
authorized by the parties hereto.


          NOW, THEREFORE, THIS FIRST SUPPLEMENTAL INDENTURE WITNESSETH:

          For and in consideration of the mutual premises and agreements herein
contained, the Company and the Trustee covenant and agree, for the equal and
proportionate benefit of all Holders of the Notes, as follows:

                                  ARTICLE ONE

                             CREATION OF THE NOTES

          SECTION 1.1.  DESIGNATION OF SERIES.  Pursuant to the terms hereof and
                        ----------------------
Sections 201 and 301 of the Indenture, the Company hereby creates a series of
its convertible subordinated debt securities designated as the "6% Convertible
Subordinated Notes due 2009" (the "Notes"), which Notes shall be deemed
"Securities" for all purposes under the Indenture.

          SECTION 1.2.  FORM OF NOTES.  (a)  The Notes will be issued in
                        --------------
permanent global form without coupons and the definitive form of the Notes shall
be substantially in the form set forth in Exhibit A attached hereto, which is
incorporated herein and made part hereof. The Notes shall bear interest, be
payable and have such other terms as are stated in the form of definitive Note
or in the Indenture, as supplemented by this First Supplemental Indenture. The
Stated Maturity of the Notes shall be September 15, 2009.

          (b)  The fifth paragraph of Section 305 of the Indenture is hereby
amended with respect to the Notes by replacing clause (y) in the fourth sentence
thereof with the following:

          "(y)  an Event of Default or an event which after notice or lapse of
     time or both would be an Event of Default has occurred and is continuing
     and the beneficial owners representing a majority in principal amount of
     the Notes

<PAGE>

                                                                               3

     represented by such global Securities advise DTC to cease acting as
     depositary for such global Securities or".

          SECTION 1.3.  LIMIT ON AMOUNT OF SERIES.  The Notes shall not exceed
                        --------------------------
$862,500,000 in aggregate principal amount, and may, upon the execution and
delivery of this First Supplemental Indenture or from time to time thereafter,
be executed by the Company and delivered to the Trustee for authentication, and
the Trustee shall thereupon authenticate and deliver said Notes to or upon the
written order of the Company, signed by its Chairman of the Board, President or
one of its Vice Presidents and by its Treasurer, one of its Assistant
Treasurers, its Secretary or one of its Assistant Secretaries, without further
action by the Company.

          SECTION 1.4.  CERTIFICATE OF AUTHENTICATION.  The Trustee's
                        ------------------------------
certificate of authentication to be borne on the Notes shall be substantially as
provided in the Form of Note attached hereto as Exhibit A.

          SECTION 1.5.  NO SINKING FUND.  No sinking fund will be provided with
                        ----------------
respect to the Notes.

          SECTION 1.6.  NO ADDITIONAL AMOUNTS.  No Additional Amounts will be
                        ----------------------
payable with respect to the Notes.

          SECTION 1.7.  DEFINITIONS.
                        ------------

          (a)  Capitalized terms used herein and not otherwise defined shall
have the respective meanings assigned thereto in the Indenture.

          (b)  Solely for purposes of this First Supplemental Indenture and the
Notes, the following definitions are hereby amended in their entirety to read as
follows:

          "Person" means any individual, corporation, company, partnership,
           ------
     joint venture, limited liability company, association, joint stock company,
     trust, unincorporated organization, government or agency or political
     subdivision thereof or any other entity.

          "Senior Indebtedness" means the principal of, and premium, if any, and
           -------------------
     interest, including all interest accruing subsequent to the commencement of
     any bankruptcy or similar proceeding, whether or not a claim for post-
     petition interest is allowable as a claim in any such proceeding, on, and
     all fees and other amounts payable in connection with, the following,
     whether absolute or contingent, secured or unsecured, due or to become due,
     outstanding on the date of the Indenture or thereafter created, incurred or
     assumed:

               (1) indebtedness of the Company evidenced by a credit or loan
          agreement, note, bond, debenture or other written obligation,

               (2) all obligations of the Company for money borrowed,
<PAGE>

                                                                               4

               (3) all obligations of the Company evidenced by a note or similar
          instrument given in connection with the acquisition of any businesses,
          properties or assets of any kind,

               (4) obligations of the Company (A) as lessee under leases
          required to be capitalized on the balance sheet of the lessee under
          generally accepted accounting principles and (B) as lessee under other
          leases for facilities, capital equipment or related assets, whether or
          not capitalized, entered into or leased for financing purposes,

               (5) all obligations of the Company under interest rate and
          currency swaps, caps, floors, collars, hedge agreements, forward
          contracts or similar agreements or arrangements,

               (6) all obligations of the Company with respect to letters of
          credit, bankers' acceptances and similar facilities, including
          reimbursement obligations with respect to the foregoing,

               (7) all obligations of the Company issued or assumed as the
          deferred purchase price of property or services, but excluding trade
          accounts payable and accrued liabilities arising in the ordinary
          course of business,

               (8) all obligations of the type referred to in clauses (1)
          through (7) of another Person and all dividends of another person, the
          payment of which, in either case, the Company has assumed or
          guaranteed, or for which the Company is responsible or liable,
          directly or indirectly, jointly or severally, as obligor, guarantor or
          otherwise, or which is secured by a lien on the property of the
          Company, and

               (9) renewals, extensions, modifications, replacements,
          restatements and refundings of, or any indebtedness or obligation
          issued in exchange for, any such indebtedness or obligation described
          in clauses (1) through (8) hereof;

     provided, however, that Senior Indebtedness shall not include the Notes or
     any such indebtedness or obligation if the terms of such indebtedness or
     obligation, or the terms of the instrument under which, or pursuant to
     which it is issued expressly provide that such indebtedness or obligation
     is not superior in right of payment to the Notes.
<PAGE>

                                                                               5

          "Subsidiary" of any Person means (i) a corporation more than 50% of
     the combined voting power of the outstanding Voting Stock of which is
     owned, directly or indirectly, by such Person or by one or more other
     Subsidiaries of such Person or by such Person and one or more Subsidiaries
     thereof or (ii) any other Person (other than a corporation) in which such
     Person, or one or more other Subsidiaries of such Person or such Person and
     one or more other Subsidiaries thereof, directly or indirectly, has at
     least a majority ownership and power to direct the policies, management and
     affairs thereof.

          (c)  Solely for purposes of this First Supplemental Indenture and the
Notes, the following terms shall have the indicated meanings:

          "Capital Stock" of any Person means any and all shares, interest,
           -------------
     participations or other equivalents (however designated) of corporate stock
     or equity participations, including partnership interests, whether general
     or limited, of such Person and any rights (other than debt securities
     convertible or exchangeable into any equity interest), warrants or options
     to acquire an equity interest in such person.

          "Change of Control" at such time after the original issuance of the
           -----------------
     Notes means the occurrence of the following events:
<PAGE>

                                                                               6

               (1) if any "person" or group " (as such terms are used in
     Sections 13(d) and 14(d) of the Exchange Act or any successor provisions to
     either of the foregoing), including any group acting for the purpose of
     acquiring, holding, voting or disposing of securities within the meaning of
     Rule 13d-5(b)(1) under the Exchange Act, other than any one or more of the
     Permitted Holders, becomes the "beneficial owner" (as defined in Rule 13d-3
     under the Exchange Act, except that a person will be deemed to have
     "beneficial ownership" of all shares that any such person has the right to
     acquire, whether such right is exercisable immediately or only after the
     passage of time), directly or indirectly, of 35% or more of the total
     voting power of the Voting Stock of the Company; provided, however, that
     the Permitted Holders are the "beneficial owners" (as defined in Rule 13d-3
     under the Exchange Act, except that a person will be deemed to have
     "beneficial ownership" of all shares that any such person has the right to
     acquire, whether such right is exercisable immediately or only after the
     passage of time), directly or indirectly, in the aggregate of a lesser
     percentage of the total voting power of the Voting Stock of the Company
     than such other person or group (for purposes of this clause (1), such
     person or group shall be deemed to beneficially own any voting stock of a
     corporation (the "specified corporation") held by any other corporation
     (the "parent corporation") so long as such person or group beneficially
     owns, directly or indirectly, in the aggregate a majority of the total
     voting power of the Voting Stock of such parent corporation); or

               (2) the sale, transfer, assignment, lease, conveyance or other
     disposition, directly or indirectly, of all or substantially all the assets
     of the Company and its subsidiaries, considered as a whole (other than a
     disposition of such assets as an entirety or virtually as an entirety to a
     wholly owned subsidiary or one or more Permitted Holders) shall have
     occurred; or

               (3) during any period of two consecutive years, individuals who
     at the beginning of such period constituted the Board of Directors of the
     Company (together with any new directors whose election or appointment by
     such Board or whose nomination for election by the stockholders of the
     Company was approved by a vote of a majority of the directors then still in
     office who were either directors at the beginning of such period or whose
     election or nomination for election was previously so approved) cease for
     any reason to constitute a majority of the Board of Directors of the
     Company then in office; or
<PAGE>

                                                                               7

               (4) the stockholders of the Company shall have approved any plan
     of liquidation or dissolution of the Company;

     provided, however, that a Change of Control shall not be deemed to have
     --------  -------
     occurred if the Current Market Price of the Common Stock of the Company for
     any five Trading Days within the period of 10 consecutive Trading Days
     beginning immediately after the later of the Change of Control or the
     public announcement of the Change of Control shall equal or exceed 105% of
     the Conversion Price in effect on each such Trading Day; provided further
                                                              -------- -------
     that if the Change of Control results in the reclassification, conversion,
     exchange of outstanding shares of Common Stock of the Company, such 10
     consecutive Trading Day period shall be measured as ending immediately
     before the Change of Control.

          "Conversion Price" shall equal U.S. $1,000 divided by the Conversion
           ----------------
     Rate (rounded to the nearest cent, with one-half cent being rounded upward)

          "Current Market Price" of Common Stock of the Company for any day
           --------------------
     means the last reported per share sale price, regular way on such day, or,
     if no sale takes place on such day, the average of the reported closing per
     share bid and asked prices on such day, regular way, in either case as
     reported on the Nasdaq National Market or, if such Common Stock is not
     quoted or admitted to trading on such quotation system, on the principal
     national securities exchange or quotation system on which such Common Stock
     may be listed or admitted to trading or quoted, or, if not listed or
     admitted to trading or quoted on any national securities exchange or
     quotation system, the average of the closing per share bid and asked prices
     of such Common Stock on the over-the-counter market on the day in question
     as reported by the National Quotation Bureau Incorporated, or similar
     generally accepted reporting service, or, if not so available in such
     manner, as furnished by any Nasdaq member firm selected from time to time
     by the Board of Directors of the Company for that purpose, or, if not so
     available in such manner, as otherwise determined in good faith by the
     Board of Directors of the Company.

          "Exchange Act" means the Securities Exchange Act of 1934.
           ------------

          "Expiration Date" has the meaning specified in "Offer to Purchase"
           ---------------
     below.

          "Federal Bankruptcy Code" means the Bankruptcy Act of Title 11 of the
           -----------------------
     United States Code, as amended from time to time.

          "Indebtedness" means, with respect to a Person:
           ------------

               (1) indebtedness of such Person evidenced by a credit or loan
          agreement, note, bond, debenture or other written obligation,

               (2) all obligations of such Person for money borrowed,


<PAGE>

                                                                               8

               (3) all obligations of such Person evidenced by a note or similar
          instrument given in connection with the acquisition of any businesses,
          properties or assets of any kind,

               (4) obligations of such Person (A) as lessee under leases
          required to be capitalized on the balance sheet of the lessee under
          generally accepted accounting principles and (B) as lessee under other
          leases for facilities, capital equipment or related assets, whether or
          not capitalized, entered into or leased for financing purposes,

               (5) all obligations of such Person under interest rate and
          currency swaps, caps, floors, collars, hedge agreements, forward
          contracts or similar agreements or arrangements,

               (6) all obligations of such Person with respect to letters of
          credit, bankers' acceptances and similar facilities, including
          reimbursement obligations with respect to the foregoing,

               (7) all obligations of such Person issued or assumed as the
          deferred purchase price of property or services, but excluding trade
          accounts payable and accrued liabilities arising in the ordinary
          course of business,

               (8) all obligations of the type referred to in clauses (1)
          through (7) of another Person and all dividends of another person, the
          payment of which, in either case, such Person has assumed or
          guaranteed, or for which such Person is responsible or liable,
          directly or indirectly, jointly or severally, as obligor, guarantor or
          otherwise, or which is secured by a lien on the property of such
          Person, and

               (9) renewals, extensions, modifications, replacements,
          restatements and refundings of, or any indebtedness or obligation
          issued in exchange for, any such indebtedness or obligation described
          in clauses (1) through (8) hereof.

          "9-1/8% Senior Notes Indenture" means the Indenture dated as of April
           -----------------------------
     28, 1998, as amended, supplemented or modified from time to time, between
     the Company and IBJ Schroder Bank & Trust Company, as trustee, relating to
     the Company's 9-1/8% Senior Notes Due 2008.

          "Offer" has the meaning specified in "Offer to Purchase" below.
           -----
<PAGE>

                                                                               9

          "Offer to Purchase" means a written offer (the "Offer") sent by the
           -----------------
     Company by first-class mail, postage prepaid, to each Holder of Notes at
     its address appearing in the Security Register on the date of the Offer
     offering to purchase up to the principal amount of Notes specified in such
     Offer at the purchase price specified in such Offer (as determined pursuant
     to this Indenture). Unless otherwise required by applicable law, the Offer
     shall specify an expiration date (the "Expiration Date") of the Offer to
     Purchase which shall be, subject to any contrary requirements of applicable
     law, not less than 30 days or more than 60 days after the date of such
     Offer and a settlement date (the "Purchase Date") for purchase of Notes
     within five Business Days after the Expiration Date.  The Company shall
     notify the Trustee at least 15 Business Days (or such shorter period as is
     acceptable to the Trustee) prior to the mailing of the Offer of the
     Company's obligation to make an Offer to Purchase, and the Offer shall be
     mailed by the Company or, at the Company's request, by the Trustee in the
     name and at the expense of the Company.  The Offer shall contain
     information concerning the business of the Company and its Subsidiaries
     which the Company in good faith believes will enable such Holders to make
     an informed decision with respect to the Offer to Purchase (which at a
     minimum will include (i) the most recent annual and quarterly financial
     statements and "Management's Discussion and Analysis of Financial Condition
     and Results of Operations" contained in the documents required to be filed
     under the Exchange Act (which requirements may be satisfied by delivery of
     such documents together with the Offer), (ii) a description of material
     developments in the Company's business subsequent to the date of the latest
     of such financial statements referred to in clause (i) (including a
     description of the events requiring the Company to make the Offer to
     Purchase), (iii) if applicable, appropriate pro forma financial information
     concerning the Offer to Purchase and the events requiring the Company to
     make the Offer to Purchase and (iv) any other information required by
     applicable law to be included therein). The Offer shall contain all
     instructions and materials necessary to enable such Holders to tender Notes
     pursuant to the Offer to Purchase.  The Offer shall also state:

               (1) the Section of the Indenture pursuant to which the Offer to
     Purchase is being made;

               (2) the Expiration Date and the Purchase Date;

               (3) the aggregate principal amount of the Outstanding Notes
     offered to be purchased by the Company pursuant to the Offer to Purchase
     (the "Purchase Amount");

               (4) the purchase price to be paid by the Company for $1,000
     aggregate principal amount of Notes accepted for payment (as specified
     pursuant to the Indenture) (the "Purchase Price") and whether the Purchase
<PAGE>

                                                                              10

     Price shall be paid by the Company in cash or by delivery of shares of
     Common Stock of the Company;

               (5)  that the Holder may tender all or any portion of the Notes
     registered in the name of such Holder and that any portion of a Note
     tendered must be tendered in a principal amount equal to $5,000 or any
     integral multiple of $1,000 in excess thereof;

               (6)  the place or places where Notes are to be surrendered for
     tender pursuant to the Offer to Purchase;

               (7)  that any Notes not tendered or tendered but not purchased by
     the Company will continue to accrue interest;

               (8)  that on the Purchase Date the Purchase Price will become due
     and payable upon each Note being accepted for payment pursuant to the Offer
     to Purchase and that interest thereon, if any, shall cease to accrue on and
     after the Purchase Date;

               (9)  that each Holder electing to tender a Note pursuant to the
     Offer to Purchase will be required to surrender such Note at the place or
     places specified in the Offer prior to the close of business on the
     Expiration Date (such Note being, if the Company or the Trustee so
     requires, duly endorsed by, or accompanied by a written instrument of
     transfer in form satisfactory to the Company and the Trustee duly executed
     by, the Holder thereof or his or her attorney duly authorized in writing);

               (10) in the event that the Purchase Price shall be paid in shares
     of Common Stock of the Company, that each Holder electing to tender a Note
     pursuant to the Offer to Purchase will be required to provide written
     notification of the name or names (with addresses) in which the certificate
     or certificates for shares of such Common Stock shall be issued;

               (11) that Holders will be entitled to withdraw all or any portion
     of Notes tendered if the Company (or the Paying Agent) receives, not later
     than the close of business on the Expiration Date, a telegram, telex,
     facsimile transmission or letter setting forth the name of the Holder, the
     principal amount of the Note the Holder tendered, the certificate number of
     the Note the Holder tendered and a statement that such Holder is
     withdrawing all or a portion of his tender;
<PAGE>

                                                                              11

               (12) that if Notes in an aggregate principal amount less than or
          equal to the Purchase Amount are duly tendered and not withdrawn
          pursuant to the Offer to Purchase, the Company shall purchase all such
          Notes;

               (13) the Conversion Rate then in effect, the date on which the
          right to convert the principal amount of the Notes to be repurchased
          will terminate and the place or places where such Notes may be
          surrendered for conversion; and

               (14) that in the case of any Holder whose Note is purchased only
          in part, the Company shall execute, and the Trustee shall authenticate
          and deliver to the Holder of such Note without service charge, a new
          Note or Notes, of any authorized denomination as requested by such
          Holder, in an aggregate principal amount equal to and in exchange for
          the unpurchased portion of the Note so tendered.

          Any Offer to Purchase shall be governed by and effected in accordance
     with the Offer for such Offer to Purchase.

          "Permitted Holders" means the members of the Company's Board of
           -----------------
     Directors on April 28, 1998 and their respective estates, spouses,
     ancestors, and lineal descendants, the legal representatives of any of the
     foregoing and the trustees of any bona fide trusts of which the foregoing
     are the sole beneficiaries or the grantors, or any person of which the
     foregoing "beneficially owns" (as defined in Rule 13d-3 under the Exchange
     Act) at least 66 2/3% of the total voting power of the Voting Stock of such
     person.

          "Property" means, with respect to any Person, any interest of such
           --------
      Person in any kind of property or asset, whether real, personal or mixed,
      or tangible or intangible, including Capital Stock in, and other
      securities of, any other Person.

          "Purchase Amount" has the meaning specified in "Offer to Purchase"
           ---------------
     above.

          "Purchase Date" has the meaning specified in "Offer to Purchase"
           -------------
     above.

          "Purchase Price" has the meaning specified in "Offer to Purchase"
           --------------
     above.

          "Restricted Subsidiary" means any Restricted Subsidiary under each of
           ---------------------
     the 9-1/8% Senior Notes Indenture and the 10-1/2% Senior Discount Notes
     Indenture.

          "Securities Act" means the Securities Act of 1933, as amended.
           --------------

          "Significant Subsidiary" means any Subsidiary that would be a
           ----------------------
     "Significant Subsidiary" of the Company within the meaning of Rule 1-02
     under Regulation S-X promulgated by the Commission.


<PAGE>

                                                                              12

          "10-1/2% Senior Discount Notes Indenture" means the Indenture dated as
           ---------------------------------------
     of December 2, 1998, as amended, supplemented or modified from time to
     time, between the Company and IBJ Schroder Bank & Trust Company, as
     trustee, relating to the Company's 10-1/2% Senior Discount Notes Due 2008.

          "Trading Day" with respect to the Common Stock of the Company means
           -----------
     (x) if such Common Stock is listed or admitted for trading on the New York
     Stock Exchange or another national securities exchange, a day on which the
     New York Stock Exchange or such other national securities exchange is open
     for business or (y) if such Common Stock is quoted on the National Market
     System of the Nasdaq, a day on which trades may be made on such National
     Market System or (z) other wise, any day other than a Saturday or Sunday or
     a day on which banking institutions in the State of New York are authorized
     or obligated by law or executive order to close.

          "Voting Stock" of any Person means Capital Stock of such Person who
           ------------
     ordinarily has voting power for the election of directors (or persons
     performing similar functions) of such Person, whether at all times or only
     for so long as no senior class of securities has such voting power by
     reason of any contingency.


                                  ARTICLE TWO

                              CONVERSION OF NOTES

          SECTION 2.1.  APPLICABILITY OF CONVERSION PROVISIONS.  Pursuant to
                        ---------------------------------------
Section 301(24) of the Indenture, the Notes will be convertible in accordance
with the provisions of, and pursuant to, Article Sixteen of the Indenture, as
amended hereby, and the definitive form of the Notes.

          SECTION 2.2.  CONVERSION RATE.  The rate at which shares of Common
                        ----------------
Stock of the Company shall be delivered upon conversion (the "Conversion Rate")
shall be initially 15.3401 shares of Common Stock of the Company for each $1,000
principal amount of Notes. The Conversion Rate shall be adjusted in certain
instances as provided in Section 1605 of the Indenture, as amended hereby.
<PAGE>

                                                                              13

          SECTION 2.3.  AMENDMENTS TO ARTICLE SIXTEEN.
                        ------------------------------

          (a)  Section 1605 is amended in its entirety with respect to the Notes
to read as follows:

          SECTION 1605.  Adjustment Of Conversion Rate.

          (1)  In case at any time after the date of the issuance of the Notes,
the Company shall pay or make a dividend or other distribution on any class of
Capital Stock of the Company payable in shares of Common Stock of the Company,
the Conversion Rate in effect at the opening of business on the day following
the date fixed for the determination of stockholders entitled to receive such
dividend or other distribution shall be increased by dividing such Conversion
Rate by a fraction of which the numerator shall be the number of shares of
Common Stock of the Company outstanding at the close of business on the date
fixed for such determination and the denominator shall be the sum of such number
of shares and the total number of shares constituting such dividend or other
distribution, such increase to become effective immediately after the opening of
business on the day following the date fixed for such determination. For the
purposes of this paragraph (1), the number of shares of Common Stock of the
Company at any time outstanding shall not include shares held in the treasury of
the Company but shall include shares issuable in respect of scrip certificates
issued in lieu of fractions of shares of Common Stock of the Company. The
Company will not pay any dividend or make any distribution on shares of Common
Stock of the Company held in the treasury of the Company.

          (2) In case at any time after the date of the issuance of the Notes,
the Company shall issue rights, options or warrants to all holders of its Common
Stock of the Company (other than any rights, options or warrants that by their
terms will also be issued to any Holder upon conversion of a Note into Common
Stock of the Company without any action required by the Company or any other
person) entitling them to subscribe for or purchase shares of Common Stock of
the Company (or securities convertible into Common Stock) at a price per share
(or having a conversion price per share) less than the Average Current Market
Price per share (determined as provided in paragraph (8) of this Section) on the
date fixed for the determination of stockholders entitled to receive such
rights, options or warrants (other than pursuant to a dividend reinvestment
plan), the Conversion Rate in effect at the opening of business on the day
following the date fixed for such determination shall be increased by dividing
such Conversion Rate by a fraction of which the numerator shall be the number of
shares of Common Stock of the Company outstanding at the close of business on
the date fixed for such determination plus the number of shares of Common Stock
of the Company which the aggregate of the offering price of the total number of
shares of Common Stock of the Company so offered (or the aggregate conversion
price of the convertible securities so offered) for subscription or purchase
would purchase at such Average Current Market Price and the denominator shall be
the number of shares of Common Stock of the Company outstanding at the close of
business on the date fixed for such determination plus the number of shares of
Common Stock of the Company so offered for subscription or purchase (or into
which the convertible
<PAGE>

                                                                              14

securities so offered are convertible), such increase to become effective
immediately after the opening of business on the day following the date fixed
for such determination. For the purposes of this paragraph (2), the number of
shares of Common Stock of the Company at any time outstanding shall not include
shares held in the treasury of the Company but shall include shares issuable in
respect of scrip certificates issued in lieu of fractions of shares of Common
Stock of the Company. The Company will not issue any rights, options or
warrants in respect of shares of Common Stock of the Company held in the
treasury of the Company.

          (3)  In case at any time after the date of the issuance of the Notes,
outstanding shares of Common Stock of the Company shall be subdivided into a
greater number of shares of Common Stock of the Company, the Conversion Rate in
effect at the opening of business on the day following the day upon which such
subdivision becomes effective shall be proportionately increased, and,
conversely, in case outstanding shares of Common Stock of the Company shall be
combined into a smaller number of shares of Common Stock of the Company, the
Conversion Rate in effect at the opening of business on the day following the
day upon which such combination becomes effective shall be proportionately
reduced, such reduction or increase, as the case may be, to become effective
immediately after the opening of business on the day following the day upon
which such subdivision or combination becomes effective.

          (4)  In case at any time after the date of the issuance of the Notes,
the Company shall, by dividend or otherwise, distribute to all holders of its
Common Stock, shares of any class of its Capital Stock, evidences of its
indebtedness or other assets (including securities, but excluding any rights,
options or warrants referred to in paragraph (2) of this Section, any dividend
or distribution paid exclusively in cash and any dividend or distribution
referred to in paragraph (1) of this Section), the Conversion Rate shall be
adjusted so that the same shall equal the price determined by dividing the
Conversion Rate in effect immediately prior to the close of business on the date
fixed for the determination of stockholders entitled to receive such
distribution by a fraction of which the numerator shall be the Average Current
Market Price per share (determined as provided in paragraph (8) of this Section)
on the date fixed for such determination less the then fair Market Value (as
determined by the Board of Directors, whose determination shall be conclusive
and described in a Board Resolution filed with the Trustee) of the portion of
the assets, shares of capital stock or evidences of indebtedness so distributed
applicable to one share of Common Stock of the Company and the denominator shall
be such Average Current Market Price per share, such adjustment to become
effective immediately prior to the opening of business on the day following the
date fixed for the determination of stockholders entitled to receive such
distribution.

<PAGE>

                                                                              15

          (5)  In case at any time after the date of the issuance of the Notes,
the Company shall, by dividend or otherwise, make a distribution to all holders
of its Common Stock consisting exclusively of cash (excluding any cash that is
distributed upon a merger or consolidation to which Section 1607 applies or as
part of a distribution referred to in paragraph (4) of this Section) in an
aggregate amount that, combined together with:

     (A)  the aggregate amount of any other distributions to all holders of its
          Common Stock made exclusively in cash within the 12 months preceding
          the date of payment of such distribution and in respect of which no
          adjustment pursuant to this paragraph (5) has been made, and

     (B)  the aggregate of any cash plus the fair market value (as determined by
          the Board of Directors, whose determination shall be conclusive and
          described in a Board Resolution) of consideration payable in respect
          of any tender offer by the Company or any of its Subsidiaries for all
          or any portion of the Common Stock of the Company concluded within the
          12 months preceding the date of payment of such distribution and in
          respect of which no adjustment pursuant to paragraph (6) of this
          Section has been made,

          (the amount of such cash distribution together with the amounts
described in clauses (A) and (B) above being referred to herein as the
"Aggregate Cash Distribution Amount") exceeds 10% of the product of (I) the
Average Current Market Price per share on the date for the determination of
holders of shares of Common Stock of the Company entitled to receive such cash
distribution, times (II) the number of shares of Common Stock of the Company
outstanding on such date (the amount by which the Aggregate Cash Distribution
Amount exceeds 10% of the product of the amounts described in clauses (I) and
(II) above being referred to herein as the "Excess Amount"), then, and in each
such case, immediately after the close of business on such date for
determination, the Conversion Rate shall be increased in accordance with the
following formula:

                    AC =   CR  /  (M - (E / O))
                                 --------------
                                       (M)

Where:

          AC = the adjusted Conversion Rate.

          CR = the Conversion Rate in effect immediately prior to the close of
          business on the date fixed for determination of the stockholders
          entitled to receive the distribution.
<PAGE>

                                                                              16

          M = the Average Current Market Price per share (determined as provided
          in paragraph (8) of this Section) on the date fixed for determination
          of the stockholders entitled to receive the distribution.

          EA = the Excess Amount.

          O = the number of shares of Common Stock of the Company outstanding on
          the date fixed for determination of the stockholders entitled to
          receive the distribution.

          (6)  In case at any time after the date of the issuance of the Notes,
a tender offer made by the Company or any Subsidiary for all or any portion of
the Common Stock of the Company shall expire and such tender offer (as amended
upon the expiration thereof) shall require the payment to stockholders (based on
the acceptance (up to any maximum specified in the terms of the tender offer) of
Purchased Shares (as defined below)) of an aggregate consideration having a fair
market value (as determined by the Board of Directors, whose determination shall
be conclusive and described in a Board Resolution) that combined together with:

     (A)  the aggregate of the cash plus the fair market value (as determined by
          the Board of Directors, whose determination shall be conclusive and
          described in a Board Resolution), as of the expiration of such tender
          offer, of consideration payable in respect of any other tender offer,
          by the Company or any Subsidiary for all or any portion of the Common
          Stock of the Company expiring within the 12 months preceding the
          expiration of such tender offer and in respect of which no adjustment
          pursuant to this paragraph (6) has been made, and

     (B)  the aggregate amount of any distributions to all holders of the
          Company's Common Stock made exclusively in cash within 12 months
          preceding the expiration of such tender offer and in respect of which
          no adjustment pursuant to paragraph (5) of this Section has been made,
<PAGE>

                                                                              17

exceeds 10% of the product of (I) the Average Current Market Price per share
(determined as provided in paragraph (8) of this Section) as of the last time
(the "Tender Expiration Time") tenders could have been made pursuant to such
tender offer (as it may be amended), times (II) the number of shares of Common
Stock of the Company outstanding (including any tendered shares) on the Tender
Expiration Time, then, and in each such case, immediately prior to the opening
of business on the day after the date of the Tender Expiration Time, the
Conversion Rate shall be increased in accordance with the following formula:

                         AC =   CR  /  ((M x O) - C)
                                       --------------
                                       (M x (O - TS))

Where:

          AC = the adjusted Conversion Rate.

          CR = the Conversion Rate immediately prior to close of business on the
          date of the Tender Expiration Time.

          M = the Average Current Market Price per share (determined as provided
          in paragraph (8) of this Section) on the date of the Tender Expiration
          Time.

          O = the number of shares of Common Stock of the Company outstanding
          (including any tendered shares) on the Tender Expiration Time.

          C = the amount of cash plus the fair market value (as determined by
          the Board of Directors, whose determination shall be conclusive and
          described in a Board Resolution) of the aggregate consideration
          payable to stockholders based on the acceptance (up to any maximum
          specified in the terms of the tender offer) of Purchased Shares (as
          defined below).

          TS = the number of all shares validly tendered and not withdrawn as of
          the Tender Expiration Time (the shares deemed so accepted up to any
          such maximum, being referred to as the "Purchased Shares").

          (7) The reclassification of Common Stock of the Company into
securities including securities other than Common Stock of the Company (other
than any reclassification upon a consolidation or merger to which Section 1607
applies) shall be deemed to involve (a) a distribution of such securities other
than Common Stock of the Company to all holders of Common Stock of the Company
(and the effective date of such reclassification shall be deemed to be "the date
fixed for the determination of stockholders entitled to receive such
distribution" and "the date fixed for
<PAGE>

                                                                              18

such determination" within the meaning of paragraph (4) of this Section), and
(b) a subdivision or combination, as the case may be, of the number of shares of
Common Stock of the Company outstanding immediately prior to such
reclassification into the number of shares of Common Stock of the Company
outstanding immediately thereafter (and the effective date of such
reclassification shall be deemed to be "the day upon which such subdivision
becomes effective" or "the day upon which such combination becomes effective",
as the case may be, and "the day upon which such subdivision or combination
becomes effective" within the meaning of paragraph (3) of this Section).

          (8)  For the purpose of any computation under paragraphs (2), (4), (5)
and (6) of this Section, the Average Current Market Price per share on any date
shall be deemed to be the average of the daily Current Market Prices for the
five consecutive Trading Days selected by the Company commencing not more than
ten Trading Days before, and ending not later than the earlier of, the day in
question and the day before the "ex" date with respect to the issuance or
distribution requiring such computation.  For purposes of this paragraph, the
term "ex" date, when used with respect to any issuance or distribution, means
the first date on which the Common Stock of the Company trades regular way in
the applicable securities market or on the applicable securities exchange
without the right to receive such issuance or distribution.

          (9)  No adjustment in the Conversion Rate shall be required unless
such adjustment (plus any adjustments not previously made by reason of this
paragraph (9)) would require an increase or decrease of at least 1% in such
price; provided, however, that any adjustments which by reason of this paragraph
       --------  -------
(9) are not required to be made shall be carried forward and taken into account
in any subsequent adjustment. All calculations under this paragraph (9) shall be
made to the nearest cent.

          (10) The Company may make such increases in the Conversion Rate, in
addition to those required by this Section, as it considers to be advisable in
order to avoid or diminish any income tax to any holders of shares of Common
Stock of the Company resulting from any dividend or distribution of stock or
issuance of rights or warrants to purchase or subscribe for stock or from any
event treated as such (i) for federal income tax purposes or (ii) for any other
reasons relating to taxes.

          (11) To the extent permitted by applicable law, the Company from time
to time may increase the Conversion Rate by any amount for any period of time if
the period is at least 20 days, the increase is irrevocable during such period,
and the Board of Directors shall have made a determination that such increase
would be in the best interests of the Company, which determination shall be
conclusive; provided, however, that no such increase shall be taken into account
for purposes of determining whether the Current Market Price for any five
Trading Days within the period of 10 Trading Days (as determined pursuant to the
definition of Change of Control)
<PAGE>

                                                                              19

exceeds the Conversion Price by 105% in connection with an event which would
otherwise be a "Change of Control" or whether the Current Market Price for 20
Trading Days during a period of 30 consecutive Trading Days (as determined
pursuant to Section 6.1 hereof) exceeds the Conversion Price by 140% in
connection with an event which would otherwise allow the Company to cause the
conversion rights of Holders of Notes to expire. Whenever the Conversion Rate is
increased pursuant to the preceding sentence, the Company shall give notice of
the increase to the Holders in the manner provided in Section 106 at least 15
days prior to the date the increased Conversion Rate takes effect, and such
notice shall state the increased Conversion Rate and the period during which it
will be in effect.

          (12) Whenever the Conversion Rate is adjusted, as herein provided,
the Company shall promptly file with the Trustee, at the Corporate Trust Office
of the Trustee, and with the office or agency maintained by the Company for the
conversion of Securities of such series pursuant to Section 1002, an Officers'
Certificate, setting forth the conversion price after such adjustment and
setting forth a brief statement of the facts requiring such adjustment, which
certificate shall be conclusive evidence of the correctness of such adjustment.
Neither the Trustee nor any conversion agent shall be under any duty or
responsibility with respect to any such certificate or any facts or computations
set forth therein, except to exhibit said certificate from time to time to any
Holder of a Note desiring to inspect the same.  The Company shall promptly cause
a notice setting forth the adjusted conversion price to be mailed to the Holders
of Notes, as their names and addresses appear upon the Security Register of the
Company.

          (13) In any case in which this Section 1605 provides that an
adjustment shall become effective immediately after a record date for an event,
the Company may defer until the occurrence of such event (y) issuing to the
Holder of any Note converted after such record date and before the occurrence of
such event the additional shares of the Common Stock of the Company issuable
upon such conversion by reason of the adjustment required by such event over and
above the Common Stock of the Company issuable upon such conversion before
giving effect to such adjustment and (z) paying to such Holder any amount in
cash in lieu of any fractional share of Common Stock of the Company pursuant to
Section 1606 of the Indenture.

          (b) Section 1606 is hereby amended with respect to the Notes by
deleting the last sentence thereof in its entirety and substituting the
following in its place:

     "Instead of a fraction of a share of Common Stock of the Company which
     would otherwise be issuable upon conversion of any Note or Notes (or
     specified portions thereof), the Company shall pay a cash adjustment
     (computed to the nearest cent, with one-half cent being rounded upward) in
     respect of such fraction of a share in an amount equal to the same
     fractional interest of the Current Market Price of the Common Stock of the
     Company on the Trading Day next preceding the day of conversion."
<PAGE>

                                                                              20

          (c)  Section 1607 is amended by adding the following to the end of the
first sentence thereof:

     ", assuming (i) such holder of Common Stock of the Company failed to
     exercise his or her rights of election, if any, as to the kind or amount of
     shares of stock and other securities and property, including cash,
     receivable upon such consolidation, merger, sale or transfer (provided that
     if the kind or amount of shares of stock and other securities and property,
     including cash, receivable upon such consolidation, merger, sale or
     transfer is not the same for each share of Common Stock of the Company held
     immediately prior to such consolidation, merger, sale or transfer and in
     respect of which such rights of election shall not have been exercised
     ("non-electing share"), then for the purpose of this Section the kind and
     amount of shares of stock and other securities and property, including
     cash, receivable upon such consolidation, merger, sale or transfer by each
     non-electing share shall be deemed to be the kind and amount so receivable
     per share by a plurality of non-electing shares), and (ii) the Securities
     were convertible at the time of such consolidation, merger, sale or
     transfer at the initial Conversion Rate specified in the supplemental
     indenture establishing such Securities, as adjusted, if applicable, in
     accordance with the terms of such supplemental indenture."

          (d)  Section 1608 is amended with respect to the Notes by deleting the
word "or" from the end of clause (c) thereof and adding the following
immediately after clause (d) thereof:

               "(e)  the Company or a Subsidiary shall take any other action
          that would require an adjustment to the Conversion Rate pursuant to
          Section 1605; or

               (f) the Company shall take any action that would require a
          supplemental indenture pursuant to Section 1607;"
<PAGE>

                                                                              21

                                 ARTICLE THREE

                CONSOLIDATION, MERGER, SALE, LEASE OR CONVEYANCE

          SECTION 3.1.  AMENDMENTS TO ARTICLE EIGHT.  Section 801 of the
                        ----------------------------
Indenture is amended in its entirety with respect to the Notes to read as
follows:

          The Company may not consolidate with or merge into any other Person or
convey, transfer, sell or lease its properties and assets substantially as an
entirety to any Person, and the Company shall not permit any Person to
consolidate with or merge into the Company or convey, transfer, sell or lease
such Person's properties and assets substantially as an entirety to the Company,
unless:

          (a) the Person formed by such consolidation or into or with which the
     Company is merged or the Person to which the properties and assets of the
     Company are so conveyed, transferred, sold or leased, is a corporation,
     limited liability company, partnership or trust organized and existing
     under the laws of the United States, any State thereof or the District of
     Columbia and, if other than the Company, shall expressly assume the due and
     punctual payment of the principal of and, premium, if any, and interest on
     the Notes and the performance of the other covenants of the Company under
     the Indenture, and

          (b) immediately after giving effect to such transaction, no Event of
     Default, and no event which, after notice or lapse of time or both, would
     become an Event of Default, shall have occurred and be continuing.


                                  ARTICLE FOUR

                                   DEFEASANCE

          SECTION 4.1.  DEFEASANCE APPLICABLE TO NOTES.  Pursuant to Section
                        -------------------------------
301(19) and Section 1401 of the Indenture, the Company will have the option of
defeasance of the Notes under Section 1402 and 1403 of the Indenture upon the
terms and conditions contained in Article Fourteen of the Indenture, as amended
by this First Supplemental Indenture; provided, however, that the Company's
                                      --------  -------
option of covenant defeasance, as described in Section 1403 of the Indenture,
shall be limited to defeasance of its obligations under Article Eight of this
First Supplemental Indenture.
<PAGE>

                                                                              22

          SECTION 4.2.  AMENDMENTS TO ARTICLE FOURTEEN.
                        -------------------------------

          (a)  Section 1404 is hereby amended with respect to the Notes by
deleting the period from the end of clause (b) thereof and adding the following
thereto:

     ", shall not be prohibited by Article Seventeen, and shall be permitted by
     the terms of all Senior Indebtedness."

          (b)  Section 1404 is hereby further amended by deleting "91st" in
clause (c) thereof and substituting "123rd" in its place.

          (c)  Section 1405 is hereby amended by adding the following to the end
of the first paragraph thereof:

     "Money and securities so held in trust are not subject to Article Seventeen
     of the Indenture."
<PAGE>

                                                                              23

                                 ARTICLE FIVE

                               EVENTS OF DEFAULT

          SECTION 5.1.           AMENDMENTS TO SECTION 501.
                                 --------------------------

          (a)  Clause 5 of Section 501 of the Indenture is amended in its
entirety with respect to the Notes to read as follows:

          "(5) default under the terms of any instrument evidencing or securing
     Indebtedness of the Company or any Restricted Subsidiary having an
     outstanding principal amount of not less than $25,000,000 or its foreign
     currency equivalent at the time which default results in the acceleration
     of the payment of such Indebtedness or constitutes the failure to pay such
     Indebtedness when due (after expiration of any applicable grace period);
     or".

          (c)  Clause 6 of Section 501 of the Indenture is amended in its
entirety with respect to the Notes to read as follows:

          "(6) the institution by the Company or any Significant Subsidiary of
     proceedings to be adjudicated a bankrupt or insolvent, or the consent by it
     to the institution of bankruptcy or insolvency proceedings against it, or
     the filing by it of a petition or answer or consent seeking reorganization
     or relief under the Federal Bankruptcy Code or any other applicable
     federal, state or foreign law, or the consent by it to the filing of any
     such petition or to the appointment of a receiver, liquidator, assignee,
     trustee, custodian or sequestrator (or other similar official) of the
     Company or any Significant Subsidiary or of any substantial part of its
     Property, or the making by it of an assignment for the benefit of
     creditors, or the admission by it in writing of its inability to pay its
     debts generally as they become due; or"

          (c)  Clause 7 of Section 501 of the Indenture is amended in its
entirety with respect to the Notes to read as follows:
<PAGE>

                                                                              24

          "(7) the entry of a decree or order by a court having jurisdiction in
     the premises adjudging the Company or any Significant Subsidiary a bankrupt
     or insolvent, or approving as properly filed a petition seeking
     reorganization, arrangement, adjustment or composition of or in respect of
     the Company or any Significant Subsidiary under the Federal Bankruptcy Code
     or any other applicable federal, state or foreign law, or appointing a
     receiver, liquidator, assignee, trustee, custodian or sequestrator (or
     other similar official) of the Company or any Significant Subsidiary or of
     any substantial part of its Property, or ordering the winding up or
     liquidation of its affairs, and the continuance of any such decree or order
     unstayed and in effect for a period of 60 consecutive days."

          SECTION 5.2.  ADDITIONAL EVENTS OF DEFAULT.  Pursuant to Section
                        -----------------------------
301(15) of the Indenture, so long as any of the Notes are Outstanding, each of
the following events shall be an Event of Default with respect to the Notes, in
addition to the Events of Default contained in Section 501 of the Indenture, as
amended hereby:

          (1) failure to pay when due the Purchase Price of any Notes required
to be repurchased pursuant to Article Eight of this First Supplemental
Indenture, whether or not an Offer to Purchase is prohibited by Article
Seventeen of the Indenture, as amended hereby; or

          (2) failure to perform or comply with Article Eight of the Indenture,
as amended hereby; or

          (3) the rendering of any judgment or judgments for the payment of
money in an aggregate amount in excess of $25 million or its foreign currency
equivalent at the time that shall be rendered against the Company or any
Restricted Subsidiary and that shall not be waived, satisfied or discharged for
any period of 45 consecutive days during which a stay of enforcement shall not
be in effect.

          SECTION 5.3.  NOTICE OF DEFAULT OR EVENT OF DEFAULT. The Company shall
                        --------------------------------------
deliver to the Trustee, as soon as reasonably practicable and in any event
within 30 days after an executive officer of the Company becomes aware of the
occurrence of any Event of Default or any event which, with notice or the lapse
of time or both, would constitute an Event of Default, an Officers' Certificate
setting forth the details of such Event of Default or Default and the action
which the Company proposes to take with respect thereto.
<PAGE>

                                                                              25

                                  ARTICLE SIX

                        EXPIRATION OF CONVERSION RIGHTS

          Pursuant to Section 301(25) of the Indenture, so long as any of the
Notes are Outstanding, the following provisions shall be applicable to the
Notes:

          SECTION 6.1.  EXPIRATION OF CONVERSION RIGHTS.
                        --------------------------------

          (a)  On or after September 15, 2002, the Company may, at its option,
cause the conversion rights of Holders of Notes to expire. The Company may
exercise this option only if for at least 20 Trading Days within any period of
30 consecutive Trading Days, including the last Trading Day of such period, the
Current Market Price of the Common Stock of the Company exceeded 140% of the
Conversion Price (the "Expiration Condition").

          (b)  In order to exercise its option to cause the conversion rights of
Holders of Notes to expire, the Company must issue a press release for
publication on the Dow Jones News Service (or a comparable news service)
announcing the conversion expiration date (the "Conversion Expiration Date")
prior to the opening of business on the second Trading Day after the Expiration
Condition has been met, but in no event prior to September 15, 2002.  The press
release shall announce the Conversion Expiration Date and provide the current
Conversion Price of the Notes and the Current Market Price of the Common Stock
of the Company, in each case as of the close of business on the Trading Day next
preceding the date of the press release.

          (c)  Notice of the expiration of conversion rights will be given by
the Company to the Holders of the Notes in accordance with Section 106 not more
than four Business Days after the Company issued the press release under
paragraph (b) hereof.

          (d)  Conversion rights will terminate at the close of business on the
Conversion Expiration Date which will be a date selected by the Company not less
than 30 nor more than 60 days after the date on which the Company issues the
press release under paragraph (b) hereof announcing its intention to terminate
conversion rights of the Notes.
<PAGE>

                                                                              26

                                 ARTICLE SEVEN

                             SUBORDINATION OF NOTES

          Pursuant to Section 301(25) of the Indenture, and in addition to the
other provisions contained in Article Seventeen of the Indenture (which shall be
applicable as amended hereby to the Notes in all respects), so long as any of
the Notes are Outstanding, the following provisions shall be applicable to the
Notes:

          SECTION 7.1.  AMENDMENT OF SECTION 1701.  (a) Section 1701 is hereby
                        --------------------------
amended by relettering clause (c) in the second paragraph thereof to be clause
(b) and by deleting the following from the second paragraph thereof:

          "(b) that a default shall have occurred and be continuing with respect
to the payment of principal of (or premium, if any) or interest on or any
Additional Amounts payable in respect of any Senior Indebtedness, or"

          (b) Section 1701(l) is hereby amended by deleting the words "or (b)"
therefrom.

          SECTION 7.2.  NO PAYMENT IN CERTAIN CIRCUMSTANCES. (a) No payment
                        ------------------------------------
shall be made with respect to the principal of, or premium, if any, or interest
on the Notes (including, but not limited to, the Purchase Price with respect to
Notes submitted for repurchase in accordance with Article Eight hereof), if:

          (i) a default in the payment of principal, premium, if any, or
interest (including a default under any repurchase or redemption obligation) or
other amounts with respect to any Senior Indebtedness occurs and is continuing
unless and until such default shall have been cured or waived or shall have
ceased to exist; or

          (ii) a default, other than a payment default, on any Senior
Indebtedness occurs and is continuing that then permits holders of such Senior
Indebtedness to accelerate (with notice, lapse of time or both) its maturity
unless and until such default shall have been cured or waived or shall have
ceased to exist if the maturity of such Senior Indebtedness has not been
accelerated.
<PAGE>

                                                                              27

                                 ARTICLE EIGHT

                REPURCHASE OF NOTES AT THE OPTION OF THE HOLDER
                            UPON A CHANGE IN CONTROL

          Pursuant to Section 301(7) of the Indenture and in substitution of the
terms of Article Thirteen of the Indenture, so long as any of the Notes are
Outstanding, the following provisions shall be applicable to the Notes:

          SECTION 8.1.  RIGHT TO REQUIRE REPURCHASE.
                        ----------------------------

          (a)  Upon the occurrence of  a Change in Control, each Holder shall
have the right, at the Holder's option, but subject to the provisions of Section
8.2. hereof, to require the Company to repurchase all of such Holder's Notes or
any portion of the principal amount thereof that is equal to U.S. $5,000 or any
integral multiple of $1,000 in excess thereof (provided that no single Note may
be repurchased in part unless the portion of the principal amount of such Note
to be Outstanding after such repurchase is equal to U.S. $1,000 or integral
multiples of $1,000 in excess thereof), in accordance with the procedures set
forth in this Section 8.1 and this First Supplemental Indenture. The 9-1/8%
Senior Notes Indenture and the 10-1/2% Senior Discount Notes Indenture require
that such Indebtedness be repurchased upon the occurrence of certain of the
events that would constitute a Change of Control. Other future Indebtedness of
the Company may contain prohibitions of certain events which would constitute a
Change of Control or require such Indebtedness to be repurchased upon a Change
of Control. To the extent other Indebtedness of the Company is both subject to
similar repurchase obligations in the event of a Change of Control and ranks
senior in right of payment to the Notes, the Company will repurchase such
Indebtedness required to be repurchased pursuant to the terms thereof before
repurchasing any of the Notes.

          (b)  Within 30 days of the occurrence of a Change of Control, the
Company will be required to make an Offer to Purchase all Outstanding Notes at a
price, subject to next sentence, in cash equal to 100% of the principal amount
of the Notes on the Purchase Date, plus accrued and unpaid interest (if any) to
such Purchase Date (subject to the right of Holders of record on the relevant
record date to receive interest due on the relevant Interest Payment Date). At
the option of the Company, the Purchase Price may be paid in cash or, subject to
the fulfillment by the Company of the conditions set forth Section 8.2 hereof,
by delivery of shares of Common Stock of the Company having a fair market value
equal to the Purchase Price.

          (c)  The Company and the Trustee shall perform their respective
obligations for the Offer to Purchase as specified in the Offer.  Prior to the
Purchase Date, the Company shall (i) accept for payment Notes or portions
thereof tendered pursuant to
<PAGE>

                                                                              28

the Offer, (ii) irrevocably deposit with the Paying Agent (or, if the Company is
acting as its own Paying Agent, segregate and hold in trust as provided in
Section 1003) cash or shares of Common Stock of the Company, as provided below,
sufficient to pay the Purchase Price of all Notes or portions thereof so
accepted (provided that such deposit may be made no later than 11:00 A.M. New
York City time on the Purchase Date if the Company elects) and (iii) deliver or
cause to be delivered to the Trustee all Notes so accepted together with an
Officers' Certificate stating the Notes or portions thereof accepted for payment
by the Company. The Paying Agent shall promptly mail or deliver to Holders of
Notes so accepted payment or shares of Common Stock of the Company in an amount
equal to the Purchase Price, and the Trustee shall promptly authenticate and
mail or deliver to such Holders a new Note or Notes equal in principal amount to
any unpurchased portion of the principal amount of the Note surrendered as
requested by the Holder. Any Note not accepted for payment shall be promptly
mailed or delivered by the Company to the Holder thereof. In the event that the
aggregate Purchase Price is less than the amount delivered by the Company to the
Trustee or the Paying Agent, the Trustee or the Paying Agent, as the case may
be, shall deliver the excess to the Company immediately after the Purchase Date.


          (d) Any issuance of shares of Common Stock of the Company in respect
of the Purchase Price shall be deemed to have been effected immediately prior to
the close of business on the Purchase Date and the Person or Persons in whose
name or names any certificate or certificates for shares of Common Stock of the
Company shall be issuable upon such repurchase shall be deemed to have become on
the Purchase Date the holder or holders of record of the shares represented
thereby; provided, however, that any surrender for repurchase on a date when the
stock transfer books of the Company shall be closed shall constitute the Person
or Persons in whose name or names the certificate or certificates for such
shares are to be issued as the record holder or holders thereof for all purposes
at the opening of business on the next succeeding day on which such stock
transfer books are open. No payment or adjustment shall be made for dividends or
distributions on any Common Stock of the Company issued upon repurchase of any
Note declared prior to the Purchase Date.

          (e) No fractions of shares shall be issued upon repurchase of Notes.
If more than one Note shall be repurchased from the same Holder and the Purchase
Price shall be payable in shares of Common Stock of the Company, the number of
full shares which shall be issuable upon such repurchase shall be computed on
the basis of the aggregate principal amount of the Notes so repurchased. Instead
of any fractional share of Common Stock of the Company which would otherwise be
issuable on the repurchase of any Note or Notes, the Company will deliver to the
applicable Holder its check for the current market value of such fractional
share. The current market value of a fraction of a share is determined by
multiplying the Current Market Price of a full share on the Trading Day
immediately preceding the Purchase Date by the fraction, and rounding the result
to the nearest cent.
<PAGE>

                                                                              29

          (f) Any issuance and delivery of certificates for shares of Common
Stock of the Company on repurchase of Notes shall be made without charge to the
Holder of Notes being repurchased for such certificates or for any tax or duty
in respect of the issuance or delivery of such certificates or the Notes
represented thereby; provided, however, that the Company shall not be required
to pay any tax or duty which may be payable in respect of (i) income of the
Holder or (ii) any transfer involved in the issuance or delivery of certificates
for shares of Common Stock of the Company in a name other than that of the
Holder of the Notes being repurchased, and no such issuance or delivery shall be
made unless and until the Person requesting such issuance or delivery has paid
to the Company the amount of any such tax or duty or has established, to the
satisfaction of the Company, that such tax or duty has been paid.

          (g)  Whenever in this First Supplemental Indenture, Exhibit A hereto
or the Indenture (including Article One hereof and Sections 201, 501(1) and 508
of the Indenture) there is a reference, in any context, to the principal of any
Note as of any time, such reference shall be deemed to include reference to the
Purchase Price payable in respect of such Note to the extent that such Purchase
Price is, was or would be so payable at such time, and express mention of the
Purchase Price in any provision of this First Supplemental Indenture shall not
be construed as excluding the Purchase Price in those provisions of this First
Supplemental Indenture when such express mention is not made; provided, however,
                                                              --------  -------
that for the purposes of Article Seven such reference shall be deemed to include
reference to the Purchase Price only to the extent the Purchase Price is payable
in cash.

          (h)  The Company shall not be required to make an Offer to Purchase
upon a Change of Control if a third party makes the Offer to Purchase in the
manner, at the times and otherwise in compliance with the requirements set forth
in the Indenture applicable to an Offer to Purchase made by the Company and
purchases all Notes validly tendered and not withdrawn under such Offer to
Purchase.

          (i)  In the event that the Company makes an Offer to Purchase, the
Company shall comply with any applicable securities laws and regulations,
including any applicable requirements of Section 14(e) of, and Rule 14e-1 under,
the Exchange Act. To the extent that the provisions of any securities laws or
regulations conflict with provisions of this Section, the Company shall comply
with the applicable securities laws and regulations and shall not be deemed to
have breached its obligations under this Section by virtue thereof.
<PAGE>

                                                                              30

          SECTION 8.2.  CONDITIONS TO THE COMPANY'S ELECTION TO PAY THE
                        -----------------------------------------------
REPURCHASE PRICE IN COMMON STOCK.  The Company may elect to pay the Purchase
- ---------------------------------
Price by delivery of shares of Common Stock of the Company pursuant to Section
8.1 if:

          (1) The shares of Common Stock of the Company deliverable in payment
of the Purchase Price shall have a fair market value as of the Purchase Date of
not less than the Purchase Price. For purposes of Section 8.1 and this Section
8.2, the fair market value of shares of Common Stock of the Company shall be
determined by the Company and shall be equal to 95% of the average of the
Current Market Price of the Common Stock of the Company for the five consecutive
Trading Days immediately preceding and including the third Trading Day prior to
the Purchase Date;

          (2) The shares of Common Stock of the Company to be issued upon
repurchase of Notes hereunder (i) shall not require registration under any
federal securities law before such shares may be freely transferable without
being subject to any transfer restrictions under the Securities Act upon
repurchase or, if such registration is required, such registration shall be
completed and shall become effective prior to the Purchase Date, and (ii) shall
not require registration with or approval of any governmental authority under
any state law or any other federal law before such shares may be validly issued
or delivered upon repurchase or if such registration is required or such
approval must be obtained, such registration shall be completed or such approval
shall be obtained prior to the Purchase Date;

          (3) The shares of Common Stock of the Company to be issued upon
repurchase of Notes hereunder are, or shall have been, approved for listing on
the Nasdaq National Market or the New York Stock Exchange or listed on another
national securities exchange, in any case, prior to the Purchase Date; and

          (4) All shares of Common Stock of the Company which may be issued upon
repurchase of Notes will be issued out of the Company's authorized but unissued
Common Stock of the Company and, will upon issue, be duly and validly issued and
fully paid and non-assessable and free of any preemptive or similar rights.

          If all of the conditions set forth in this Section 8.2 are not
satisfied in accordance with the terms hereof, the Purchase Price shall be paid
by the Company only in cash.

          SECTION 8.3.  CONSOLIDATION, MERGER, ETC.  In the case of any
                        ---------------------------
consolidation, conveyance, sale, transfer or lease of all or substantially all
of the assets of the Company to which Section 1607 of the Indenture applies, in
which the Common Stock of the Company is changed or exchanged as a result into
the right to
<PAGE>
                                                                              31

receive shares of stock and other securities or property or assets (including
cash) which includes shares of Common Stock of the Company or common stock of
another Person that are, or upon issuance will be, traded on a United States
national securities exchange or approved for trading on an established automated
over-the-counter trading market in the United States and such shares constitute
at the time such change or exchange becomes effective in excess of 50% of the
aggregate fair market value of such shares of stock and other securities,
property and assets (including cash) (as determined by the Company, which
determination shall be conclusive and binding), then the Person formed by such
consolidation or resulting from such merger or combination or which acquires the
properties or assets (including cash) of the Company, as the case may be, shall
execute and deliver to the Trustee a supplemental indenture (which shall comply
with the Trust Indenture Act as in force at the date of execution of such
supplemental indenture) modifying the provisions of this First Supplemental
Indenture relating to the right of Holders to cause the Company to repurchase
the Notes following a Change in Control, including without limitation the
applicable provisions of this Article Eight and the definitions of the Common
Stock and Change in Control, as appropriate, and such other related definitions
set forth herein and in the Indenture as determined in good faith by the Company
(which determination shall be conclusive and binding), to make such provisions
apply in the event of a subsequent Change of Control to the common stock and the
issuer thereof if different from the Company and Common Stock of the Company (in
lieu of the Company and the Common Stock of the Company).


                                  ARTICLE NINE

                            SUPPLEMENTAL INDENTURES

          SECTION 9.1.  AMENDMENTS TO ARTICLE NINE. (a)  Section 901 is hereby
                        ---------------------------
amended with respect to the Notes by deleting the word "or" from the end of
clause (9) thereof, deleting the "." from the end of clause (10) thereof and
substituting a ";" in its place and by adding the following to the end thereof:

          (11) to add guarantees with respect to the Notes; or

          (12) to comply with any requirements of the Commission in connection
     with qualifying, or maintaining the qualification of, the Indenture under
     the Securities Act or the TIA.

          (b)  Section 902 is hereby amended by inserting "at any time after a
Change of Control has occurred" after the words "Section 504, or" in clause (1)
thereof and by adding the following to the end of the first paragraph of Section
902:
<PAGE>

                                                                              32

          (6) modify Article Sixteen or Article Seventeen of the Indenture, as
     amended, or Article Six of this First Supplemental Indenture in a manner
     adverse to the Holders.

                                  ARTICLE TEN

                       MEETINGS OF HOLDERS OF SECURITIES

          SECTION 10.1.  AMENDMENTS TO ARTICLE FIFTEEN. Section 1504 of the
                         ------------------------------
Indenture is amended with respect to the Notes by adding the following to the
end of the first paragraph thereof:

          "Subject to the proviso in the first sentence of this paragraph, the
          Persons entitled to vote 25% of the principal amount of the
          Outstanding Notes shall constitute a quorum for a reconvened meeting
          previously adjourned for lack of a quorum."

                                ARTICLE ELEVEN

                                 MISCELLANEOUS

          SECTION 11.1.  APPLICATION OF FIRST SUPPLEMENTAL INDENTURE. Each and
                         --------------------------------------------
every term and condition contained in this First Supplemental Indenture that
modifies, amends or supplements the terms and conditions of the Indenture shall
apply only to the Notes created hereby and not to any future series of Notes
established under the Indenture.

          SECTION 11.2.  BENEFITS OF FIRST SUPPLEMENTAL INDENTURE.  Nothing
                         -----------------------------------------
contained in this First Supplemental Indenture shall or shall be construed to
confer upon any person other than a Holder of the Notes, the Company and the
Trustee any right or interest to avail itself or himself, as the case may be, of
any benefit under any provision of the Indenture or this First Supplemental
Indenture, except for Holders of Senior Indebtedness as provided in Article
Seven hereof.

          SECTION 11.3.  EFFECTIVE DATE.  This First Supplemental Indenture
                         ---------------
shall be effective as of the date first above written and upon the execution and
delivery hereof by each of the parties hereto.

          SECTION 11.4.  GOVERNING LAW.  This First Supplemental Indenture shall
                         --------------
be governed by, and construed in accordance with, the laws of the State of New
York.

<PAGE>

                                                                              33

          SECTION 11.5.  COUNTERPARTS.  This First Supplemental Indenture may be
                         -------------
executed in any number of counterparts, each of which so executed shall be
deemed to be an original, but all such counterparts shall together constitute
but one and the same instrument.


          IN WITNESS WHEREOF, the parties hereto have caused this First
Supplemental Indenture to be duly executed by their respective officers hereunto
duly authorized, all as of the day and year first above written.


                              LEVEL 3 COMMUNICATIONS, INC.


                                    /s/ Thomas C. Stortz
Dated: September 20, 1999       By: _______________________
                                    Name:   Thomas C. Stortz
                                    Title:  Senior Vice President

/s/ Neil J. Eckstein

Attest: Neil J. Eckstein



                              IBJ WHITEHALL BANK & TRUST COMPANY,
                              as Trustee


                              By: /s/ Luis Perez
                                  --------------------------------
                                  Name:   Luis Perez
                                  Title:  Assistant Vice President


Dated: September 20, 1999

/s/ Kevin Fox

Attest: Kevin Fox
<PAGE>

                                   EXHIBIT A

                            Form of Face of Security
                            ------------------------

     [If a Global Security, then insert:]  THIS SECURITY IS A GLOBAL SECURITY
WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN
THE NAME OF A DEPOSITORY OR A NOMINEE OF A DEPOSITORY OR A SUCCESSOR DEPOSITORY.
THIS SECURITY IS NOT EXCHANGEABLE FOR SECURITIES REGISTERED IN THE NAME OF A
PERSON OTHER THAN THE DEPOSITORY OR ITS NOMINEE EXCEPT IN THE LIMITED
CIRCUMSTANCES DESCRIBED IN THE INDENTURE, AND NO TRANSFER OF THIS SECURITY
(OTHER THAN A TRANSFER OF THIS SECURITY AS A WHOLE BY THE DEPOSITORY TO A
NOMINEE OF THE DEPOSITORY OR BY A NOMINEE OF THE DEPOSITORY TO THE DEPOSITORY OR
ANOTHER NOMINEE OF THE DEPOSITORY) MAY BE REGISTERED EXCEPT IN THE LIMITED
CIRCUMSTANCES DESCRIBED IN THE INDENTURE.

     [If a Global Security, then insert:]  UNLESS THIS CERTIFICATE IS PRESENTED
BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK
CORPORATION ("DTC"), TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER,
EXCHANGE, OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF
CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE
OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS
REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER
USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS
THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.
<PAGE>

                          LEVEL 3 COMMUNICATIONS, INC.

                   6% Convertible Subordinated Note Due 2009

                                                             CUSIP No. 52729NAG5
No.       [if a Global security, insert: up to] $

     Level 3 Communications, Inc., a Delaware corporation (herein called the
"Company", which term includes any successor Person under the Indenture
hereinafter referred to), for value received, hereby promises to pay to
_____________, or registered assigns, the principal sum of [if a Global
Security, then insert: up to] _________ Dollars [if a Global Security, then
insert:  (the outstanding principal amount of which shall be reflected in the
attached Schedule of Increases or Decreases in Global Security and the records
of the Trustee which, taken together with the outstanding principal amounts of
all other Outstanding Securities, shall not exceed $862,500,000 in the aggregate
at any time)] on September 15, 2009, at the office or agency of the Company
referred to below, and to pay interest thereon, in cash in arrears semiannually
on March 15 and September 15 in each year, with payment commencing on March 15,
2000, and interest accruing from September 20, 1999, or from the most recent
Interest Payment Date to which interest has been paid or duly provided for, at
the rate of 6% per annum, until the principal amount hereof is paid or duly
provided for.  The Company shall pay interest on overdue principal at the rate
borne by this Security, and it shall pay interest on overdue installments of
interest at the same rate to the extent lawful.

     The interest so payable, and punctually paid or duly provided for, on any
Interest Payment Date will, as provided in such Indenture, be paid to the Person
in whose name this Security (or one or more Predecessor Securities) is
registered at the close of business on the Regular Record Date for such
interest, which shall be March 1 or September 1 (whether or not a Business Day),
as the case may be, next preceding such Interest Payment Date.  Any such
interest not so punctually paid or duly provided for shall forthwith cease to be
payable to the Holder on such Regular Record Date, and such defaulted interest,
and (to the extent lawful) interest on such defaulted interest at the rate borne
by the Securities, may be paid to the Person in whose name this Security (or one
or more Predecessor Securities) is registered at the close of business on a
Special Record Date for the payment of such Defaulted Interest to be fixed by
the Trustee, notice whereof shall be given to Holders of Securities not less
than 10 days prior to such Special Record Date, or may be paid at any time in
any other lawful manner, all as more fully provided in said Indenture.   Payment
of the principal of (and premium, if any) and interest on this Security will be
made at the office or agency of the Company maintained for that purpose in The
City of New York, or at such other office or agency of the Company as may be
maintained for such purpose, in such coin or currency of the United States of
America as at the time of payment is legal tender for payment of public and
private debts; provided,
               --------

                                      A-2
<PAGE>

however, that payment of interest may be made at the option of the Company by
- -------
check mailed to the address of the Person entitled thereto as such address shall
appear on the Security Register.

     Reference is hereby made to the further provisions of this Security set
forth on the reverse hereof, which further provisions shall for all purposes
have the same effect as if set forth at this place.

     Unless the certificate of authentication hereon has been duly executed by
the Trustee referred to on the reverse hereof by manual signature, this Security
shall not be entitled to any benefit under the Indenture, or be valid or
obligatory for any purpose.

                                      A-3
<PAGE>

     IN WITNESS WHEREOF, the Company has caused this instrument to be duly
executed under its corporate seal.


Dated:_______________              LEVEL 3 COMMUNICATIONS, INC.

                                   By:
                                      _______________________
                                        Authorized Signatory


Attest:__________________

                                      A-4
<PAGE>

                          Form of Reverse of Security


     This Security is one of a duly authorized issue of securities of the
Company designated as its 6% Convertible Subordinated Notes Due 2009 (herein
called the "Securities"), limited (except as otherwise provided in the Indenture
referred to below) in aggregate principal amount to $862,500,000, which may be
issued under an indenture (herein called the "Base Indenture") dated as of
September 20, 1999, as supplemented by the First Supplemental Indenture (the
"First Supplemental Indenture" and, together with the Base Indenture, the
"Indenture") dated as of September 20, 1999, in each case between the Company
and IBJ Whitehall Bank & Trust Company, as trustee (herein called the "Trustee",
which term includes any successor trustee under the Indenture), to which
Indenture and all indentures supplemental thereto reference is hereby made for a
statement of the respective rights, limitations of rights, duties, obligations
and immunities thereunder of the Company, the Trustee and the Holders of the
Securities, and of the terms upon which the Securities are, and are to be,
authenticated and delivered.

Expiration of Conversion Rights
- -------------------------------

     On or after September 15, 2002, the Company may, at its option, cause the
conversion rights of Holders of Notes to expire. The Company may exercise this
option only if for at least 20 Trading Days within any period of 30 consecutive
Trading Days, including the last Trading Day of such period, the Current Market
Price of Common Stock of the Company exceeded 140% of the Conversion Price. In
order to exercise its option to cause the conversion rights of Holders of Notes
to expire, the Company must issue a press release for publication on the Dow
Jones News Service (or a comparable news service) announcing the Conversion
Expiration Date prior to the opening of business on the second Trading Day after
any period in which the Expiration Condition has been met, but in no event prior
to September 15, 2002. The press release shall announce the Conversion
Expiration Date and provide the current Conversion Price of the Notes and the
Current Market Price of the Common Stock of the Company, in each case as of the
close of business on the Trading Day next preceding the date of the press
release.

     Notice of the expiration of conversion rights will be given by the Company
by first-class mail to the Holders of the Notes not more than four business days
after the Company issued the press release.  Conversion rights will terminate at
the close of business on the Conversion Expiration Date which will be a date
selected by the Company not less than 30 nor more than 60 days after the date on
which the Company issues the press release announcing its intention to terminate
conversion rights of the Notes.

                                      A-5
<PAGE>

Repurchase at the Option of Holders upon a Change of Control
- ------------------------------------------------------------

     Upon the occurrence of a Change of Control, the Holder of this Security may
require the Company, subject to certain limitations provided in the Indenture,
to repurchase this Security at a purchase price in cash in an amount equal to
100% of the principal amount thereof, plus accrued and unpaid interest (if any)
to the Purchase Date (subject to the right of Holders of record on the relevant
record date to receive interest due on the relevant interest payment date).

     At the option of the Company, the Purchase Price may be paid in cash or,
subject to the conditions provided in the Indenture, by delivery of shares of
Common Stock of the Company having a fair market value equal to the Purchase
Price. For purposes of this paragraph, the fair market value of shares of Common
Stock of the Company shall be determined by the Company and shall be equal to
95% of the average of the Current Market Price for the five consecutive Trading
Days immediately preceding and including the third Trading Day prior to the
Purchase Date. Whenever in this Note there is a reference, in any context, to
the principal of any Note as of any time, such reference shall be deemed to
include reference to the Purchase Price payable in respect of such Note to the
extent that such Purchase Price is, was or would be so payable at such time, and
express mention of the Purchase Price in any provision of this Note shall not be
construed as excluding the Purchase Price so payable in those provisions of this
Note when such express mention is not made.

     In the event of repurchase of this Security in part only, a new Security or
Securities for the unrepurchased portion hereof shall be issued in the name of
the Holder hereof upon the cancellation hereof.

Conversion Rights
- -----------------

                                      A-6
<PAGE>

     Subject to and upon compliance with the provisions of the Indenture, the
Holder of this Note is entitled, at his or her option, at any time following the
original issue date of the Notes and on or before the close of business on the
Business Day immediately preceding September 15, 2009, or in case the Company
has caused the conversion rights of the Holder hereof to expire or the Holder
hereof has exercised his right to require the Company to repurchase this Note or
such portion hereof, then in respect of this Note until but (unless the Company
defaults in making the payment due upon redemption or repurchase, as the case
may be) not after, the close of business on the Conversion Expiration Date or
the Business Day immediately preceding the Purchase Date, as the case may be, to
convert this Note (or any portion of the principal amount hereof that is an
integral multiple of $1,000, provided that the unconverted portion of such
principal amount is $1,000 or any integral multiple of $1,000 in excess
thereof) into fully paid and nonassessable shares of Common Stock of the Company
at an initial Conversion Rate of 15.3401 shares of Common Stock of the Company
for each $1,000 principal amount of Notes (or at the current adjusted Conversion
Rate if an adjustment has been made as provided in the Indenture) by surrender
of this Note, duly endorsed or assigned to the Company or in blank and, in case
such surrender shall be made during the period from the close of business on any
Regular Record Date next preceding any Interest Payment Date to the opening of
business on such Interest Payment Date (except if this Note or portion thereof
repurchasable on a Purchase Date and the conversion rights of this Note, or such
portion thereof, would terminate during the period between such Regular Record
Date and the close of business on such Interest Payment Date), also accompanied
by payment in New York Clearing House or other funds acceptable to the Company
of an amount equal to the interest payable on such Interest Payment Date on the
principal amount of this Note then being converted, and also the conversion
notice hereon duly executed, to the Company at the Corporate Trust Office of the
Trustee, or at such other office or agency of the Company, subject to any laws
or regulations applicable thereto and subject to the right of the Company to
terminate the appointment of any Conversion Agent (as defined below) as may be
designated by it for such purpose in the Borough of Manhattan, The City of New
York, or at such other offices or agencies as the Company may designate (each a
"Conversion Agent"), provided, however, that if this Note or portion hereof is
repurchasable on a Purchase Date and the conversion rights of this Note, or such
portion thereof, would terminate during the period between such Regular Record
Date and the close of business on such Interest Payment Date, then the Holder of
this Note on such Regular Record Date will be entitled to receive the interest
accruing on this Note or a portion hereof from the Interest Payment Date next
preceding the date of such conversion to such succeeding Interest Payment Date
and the Holder of this Note who converts this Note or a portion hereof during
such period shall not be required to pay such interest upon surrender of this
Note for conversion. Subject to the provisions of the preceding sentence and, in
the case of a conversion after the close of business on the Regular Record Date
next preceding any Interest Payment Date and on or before the close of business
on such Interest Payment Date, to the right of the Holder of this Note (or any

                                      A-7
<PAGE>

Predecessor Security of record as of such Regular Record Date) to receive the
related installment of interest to the extent and under the circumstances
provided in the Indenture, no cash payment or adjustment is to be made on
conversion for interest accrued hereon from the Interest Payment Date next
preceding the day of conversion, or for dividends on the Common Stock of the
Company issued on conversion hereof. The Company shall thereafter deliver to the
Holder the fixed number of shares of Common Stock of the Company (together with
any cash adjustment, as provided in the Indenture) into which this Note is
convertible and such delivery will be deemed to satisfy the Company's obligation
to pay the principal amount of this Note. No fractions of shares or scrip
representing fractions of shares will be issued on conversion, but instead of
any fractional interest the Company shall pay a cash adjustment as provided in
the Indenture. The Conversion Rate is subject to adjustment as provided in the
Indenture. In addition, the Indenture provides that in case of certain
consolidations or mergers to which the Company is a party (other than a
consolidation or merger that does not result in any reclassification,
conversion, exchange or cancellation of the Common Stock of the Company) or the
conveyance, transfer, sale or lease of all or substantially all of the property
and assets of the Company, the Indenture shall be amended, without the consent
of any Holders of Notes, so that this Note, if then Outstanding, will be
convertible thereafter, during the period this Note shall be convertible as
specified above, only into the kind and amount of securities, cash and other
property receivable upon such consolidation, merger, conveyance, transfer, sale
or lease by a holder of the number of shares of Common Stock of the Company into
which this Note could have been converted immediately prior to such
consolidation, merger, conveyance, transfer, sale or lease. No adjustment in the
Conversion Rate will be made until such adjustment would require an increase or
decrease of at least one percent of such price, provided that any adjustment
that would otherwise be made will be carried forward and taken into account in
the computation of any subsequent adjustment.

Subordination
- -------------

     The indebtedness evidenced by this Note is, to the extent and in the manner
provided in the Indenture, subordinate and subject in right of payment to the
prior payment in full in cash of all Senior Indebtedness of the Company, and
this Note is issued subject to such provisions of the Indenture with respect
thereto.  Each Holder of this Note, by accepting the same, (a) agrees to and
shall be bound by such provisions, (b) authorizes and directs the Trustee on his
behalf to take such action as may be necessary or appropriate to effectuate the
subordination so provided and (c) appoints the Trustee his attorney-in-fact for
any and all such purposes.

                                      A-8
<PAGE>

Events of Default
- -----------------

     If an Event of Default shall occur and be continuing, the principal amount
of all the Securities may be declared due and payable in the manner and with the
effect provided in the Indenture.

Defeasance
- ----------

     The Indenture contains provisions for defeasance at any time of (a) the
entire indebtedness of the Company on this Security and (b) its obligation to
repurchase Securities upon the occurrence of a Change of Control and related
Defaults and Events of Default, upon compliance by the Company with certain
conditions set forth therein, which provisions apply to this Security.

Modification and Amendment
- --------------------------

     The Indenture permits, with certain exceptions as therein provided, the
amendment thereof and the modification of the rights and obligations of the
Company and the rights of the Holders under the Indenture at any time by the
Company and the Trustee with the consent of the Holders of a majority in
aggregate principal amount of the Securities at the time Outstanding.  The
Indenture also contains provisions permitting the Holders of specified
percentages in aggregate principal amount of the Securities at the time
Outstanding, on behalf of the Holders of all the Securities, to waive compliance
by the Company with certain provisions of the Indenture and certain past
defaults under the Indenture and their consequences.  Without the consent of any
Holder of Securities, the Company and the Trustee may amend or modify the
Indenture for certain purposes specified therein.  Any such consent or waiver by
or on behalf of the Holder of this Security shall be conclusive and binding upon
such Holder and upon all future Holders of this Security and of any Security
issued upon the registration of transfer hereof or in exchange herefor or in
lieu hereof whether or not notation of such consent or waiver is made upon this
Security.

Miscellaneous
- -------------

     No reference herein to the Indenture and no provision of this Security or
of the Indenture shall alter or impair the obligation of the Company, which is
absolute and unconditional, to pay the principal of (and premium, if any) and
interest on this Security at the times, place and rate, and in the coin or
currency, herein prescribed.

     As provided in the Indenture and subject to certain limitations therein set
forth, the transfer of this Security is registerable on the Security Register of
the Company, upon surrender of this Security for registration of transfer at the
office or agency of the

                                      A-9
<PAGE>

Company maintained for such purpose in The City of New York, duly endorsed by,
or accompanied by a written instrument of transfer in form satisfactory to the
Company and the Security Registrar duly executed by, the Holder hereof or his
attorney duly authorized in writing, and thereupon one or more new Securities,
of authorized denominations and for the same aggregate principal amount, will be
issued to the designated transferee or transferees. The Securities are issuable
only in registered form without coupons in denominations of $1,000 principal
amount and any integral multiple thereof. As provided in the Indenture and
subject to certain limitations therein set forth, the Securities are
exchangeable for a like aggregate principal amount of Securities of a different
authorized denomination, as requested by the Holder surrendering the same.

     No service charge shall be made for any registration of transfer or
exchange of the Securities, but the Company may require payment of a sum
sufficient to cover any transfer tax or other similar governmental charge
payable in connection therewith.

     Prior to the time of due presentment of this Security for registration of
transfer, the Company, the Trustee and any agent of the Company or the Trustee
may treat the Person in whose name this Security is registered as the owner
hereof for all purposes, whether or not this Security be overdue, and neither
the Company, the Trustee nor any agent shall be affected by notice to the
contrary.

     THIS SECURITY SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAW
OF THE STATE OF NEW YORK BUT WITHOUT GIVING EFFECT TO APPLICABLE PRINCIPLES OF
CONFLICTS OF LAW TO THE EXTENT THAT THE APPLICATION OF THE LAWS OF ANOTHER
JURISDICTION WOULD BE REQUIRED THEREBY.

     All terms used in this Security which are defined in the Indenture shall
have the meanings assigned to them in the Indenture.

                                     A-10
<PAGE>

                Form of Trustee's Certificate of Authentication
                ------------------------------------------------

     The Trustee's certificate of authentication shall be in substantially the
following form:


                    TRUSTEE'S CERTIFICATE OF AUTHENTICATION


     Dated:  __________________


          This is one of the Securities referred to in the within-mentioned
Indenture.

                              IBJ WHITEHALL BANK & TRUST COMPANY,
                              as Trustee

                              By:
                              _______________________________________
                                    Authorized Signatory

                                     A-11
<PAGE>

                               CONVERSION NOTICE

          The undersigned Holder of this Note hereby irrevocably exercises the
option to convert this Note, or any portion of the principal amount hereof
(which is $1,000 or an integral multiple of $1,000 in excess thereof,
PROVIDED that the unconverted portion of such principal amount is $1,000 or
any integral multiple of $1,000 in excess thereof) below designated, into
shares of Common Stock of the Company in accordance with the terms of the
Indenture referred to in this Note, and directs that such shares, together with
a check in payment for any fractional share and any Notes representing any
unconverted principal amount hereof, be delivered to and be registered in the
name of the undersigned unless a different name has been indicated below. If
shares of Common Stock of the Company or Notes are to be registered in the name
of a Person other than the undersigned, (a) the undersigned will pay all
transfer taxes payable with respect thereto and (b) signature(s) must be
guaranteed by an Eligible Guarantor Institution with membership in an approved
signature guarantee program pursuant to Rule 17Ad-15 under the Securities
Exchange Act of 1934. Any amount required to be paid by the undersigned on
account of interest accompanies this Note.



Dated:__________                ------------------------------------


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


                                 Signature(s)



                                     A-12
<PAGE>

If shares or Notes are to be registered in the name of a Person other than the
Holder, please print such Person's name and address:


- ---------------------------------------
Name

- ---------------------------------------
Address

- ---------------------------------------
Social Security or other Identification
Number, if any


- ---------------------------------------
Signature Guaranteed

If only a portion of the Notes is to be converted, please indicate:

1.  Principal amount to be converted:

              $_________________


2.  Principal amount and denomination of Notes representing unconverted
principal amount to be issued:

          Amount  $

                     _________________

          ($1,000 or any integral multiple of $1,000 in excess thereof,
provided that the unconverted portion of such principal amount is $1,000 or
any integral multiple of $1,000 in excess thereof)

                                     A-13
<PAGE>

                                Assignment Form
                                ---------------

     If you, the Holder, want to assign this Security, fill in the form below
and have your signature guaranteed:

I or we assign and transfer this Security to_________________________________

(Insert assignee's social security or tax ID number)

_______________________________________________________________________________

(Print or type assignee's name, address and zip code)

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

and irrevocably appoint______________________________________________________

of   ___________________________________________________________

     ___________________________________________________________

agent to transfer this Security on the books of the Company.  The agent may
substitute another to act for such agent.


Dated:  _______________     Your signature: ___________________________________
                                           (Sign exactly as your name appears on
                                           the other side of this Security)

                             By:
                                            ___________________________________
                                            NOTICE:  To be executed by an
                                                     executive officer

Signature Guarantee:  _______________________________________________________

                                     A-14
<PAGE>

                       Option of Holder to Elect Purchase


     If you wish to have this Security purchased by the Company pursuant to
Section 8.1 of the First Supplemental Indenture, check the box:  [_]

     If you wish to have a portion of this Security purchased by the Company
pursuant to Section 8.1 of the First Supplemental Indenture, state the amount:
$___________________.

     In the event that the Purchase Price shall be paid in shares of Common
Stock of the Company, provide the name in which the certificate(s) for shares of
Common Stock of the Company are to be issued, together with the address of such
person:

If shares or Notes are to be registered in the name of a Person other than the
Holder, please print such Person's name and address:

(Print or type name, address and zip code)


_______________________________________
Name

_______________________________________
Address

_______________________________________



Dated: ________________             Your Signature:________________________
                                    (Sign exactly as your name appears on the
                                    other side of this Security)

                                     A-15
<PAGE>

                     [TO BE ATTACHED TO GLOBAL SECURITIES]

             SCHEDULE OF INCREASES OR DECREASES IN GLOBAL SECURITY

          The initial principal amount of this Global Security is $[        ].
The following increases or decreases in this Global Security have been made:

<TABLE>
<CAPTION>
 Date of      Amount of decrease in       Amount of increase in       Principal amount of this    Signature of authorized
 Transfer     Principal Amount of this    Principal Amount of this    Global Security following   signatory of Trustee or
              Global Security             Global Security             such decrease or increase   Security Registrar
 <S>          <C>                         <C>                         <C>                         <C>
 </TABLE>

                                     A-16

<PAGE>

                                                                    EXHIBIT 23.1

                      CONSENT OF INDEPENDENT ACCOUNTANTS
                      ----------------------------------

We consent to the inclusion and incorporation by reference in the Prospectus
Supplement dated September 14, 1999 to the Registration Statement of Level 3
Communications, Inc. on Form S-3 of our report dated March 30, 1998, on our
audits of the consolidated financial statements of Level 3 Communications,
Inc. (formerly Peter Kiewit Sons', Inc.) as of December 27, 1997 and for each of
the two years in the period ended December 27, 1997 which report is included in
the 1998 Annual Report on Form 10-K of Level 3 Communications, Inc. We also
consent to the reference to our firm in the Prospectus Supplement under the
caption "Experts".


                                                /s/ PricewaterhouseCoopers LLP

                                                    PricewaterhouseCoopers LLP



Omaha, Nebraska
September 14, 1999

<PAGE>

                                                                    EXHIBIT 23.2

                      CONSENT OF INDEPENDENT ACCOUNTANTS
                      ----------------------------------

We consent to the incorporation by reference in the Prospectus Supplement dated
September 14, 1999 to the Registration Statement of Level 3 Communications, Inc.
on Form S-3 of our report dated March 8, 1999, except for Note 20 as to which
the date is March 18, 1999, on our audits of the consolidated financial
statements and financial statement schedules of RCN Corporation and Subsidiaries
as of December 31, 1998 and 1997, and for the years ended December 31, 1998,
1997 and 1996, which report is incorporated by reference in the 1998 Annual
Report on Form 10-K of Level 3 Communications, Inc. We also consent to the
reference to our firm in the Prospectus Supplement under the caption "Experts".


                                                  /s/ PricewaterhouseCoopers LLP

                                                      PricewaterhouseCoopers LLP

Philadelphia, Pennsylvania
September 14, 1999
















<PAGE>

                                                                    EXHIBIT 23.3

                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS


As independent public accountants, we hereby consent to the inclusion in the
Prospectus Supplement dated September 14, 1999 to the Registration Statement on
Form S-3 of Level 3 Communications, Inc. (No. 333-68887) of our report dated
March 29, 1999, on our audit of the consolidated financial statements of Level 3
Communications, Inc. as of December 31, 1998 and the year then ended and to all
references to our Firm included in the Prospectus Supplement dated September 14,
1999.


/s/ Arthur Andersen LLP

Denver, Colorado
September 14, 1999


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