SPLITROCK SERVICES INC
S-1, 1999-06-03
COMPUTER INTEGRATED SYSTEMS DESIGN
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<PAGE>

     As filed with the Securities and Exchange Commission on June 3, 1999

                                                     Registration No. 333-
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549

                                   FORM S-1

                            REGISTRATION STATEMENT
                                     Under
                          The Securities Act of 1933

                               ----------------
                           Splitrock Services, Inc.
            (Exact name of Registrant as specified in its charter)

<TABLE>


<S>                                     <C>                                  <C>
          Delaware                                7370                            76-0529757
(State or other jurisdiction            (Primary Standard Industrial           (I.R.S. Employer
of incorporation or organization)        Classification Code Number)         Identification No.)
</TABLE>


                             8665 New Trails Drive
                          The Woodlands, Texas 77381
                                (281) 465-1200
  (Address, including zip code, and telephone number, including area code, of
                   registrants' principal executive offices)

                               ----------------
                       Patrick J. McGettigan, Jr., Esq.
                             Senior Vice President
                             8665 New Trails Drive
                          The Woodlands, Texas 77381
                                (281) 465-1200
(Name, address, including zip code, and telephone number, including area code,
                             of agent for service)

                               ----------------
                                  Copies to:

        Andrew P. Varney, Esq.                John D. Watson, Jr., Esq.
    Fried, Frank, Harris, Shriver &               Latham & Watkins
               Jacobson                    1001 Pennsylvania Avenue, N.W.
    1001 Pennsylvania Avenue, N.W.           Washington, D.C. 20004-2505
      Washington, D.C. 20004-2505                  (202) 637-2200
            (202) 639-7000

                               ----------------
    Approximate date of commencement of proposed sale to public: As soon as
       practicable after this registration statement becomes effective.

   If any of the securities being registered on this Form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, check the following box. [_]

   If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following
box and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering. [_]

   If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [_]

   If this is a post-effective amendment filed pursuant to Rule 462(d) under
the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [_]

   If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box. [_]

                               ----------------
                        CALCULATION OF REGISTRATION FEE
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<TABLE>
<CAPTION>
            Title of Each Class              Proposed Maximum     Amount of
       of Securities to be Registered        Offering Price(1) Registration Fee
- -------------------------------------------------------------------------------
<S>                                          <C>               <C>
Common Stock, par value $0.001 per share....   $172,500,000        $47,955
</TABLE>
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
(1) Estimated solely for the purpose of calculating the registration fee
    pursuant to Rule 457(o) under the Securities Act of 1933. The proposed
    maximum offering price includes amounts attributable to shares that may be
    purchased by the underwriters to cover over-allotments, if any.

                               ----------------
   The registrant hereby amends this registration statement on such date or
dates as may be necessary to delay its effective date until the registrant
shall file a further amendment which specifically states that this
registration statement shall thereafter become effective in accordance with
Section 8(a) of the Securities Act of 1933 or until the registration statement
shall become effective on such date as the Securities and Exchange Commission,
acting pursuant to said Section 8(a), may determine.
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<PAGE>

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+The information in this prospectus is not complete and may be changed. We may +
+not sell these securities until the registration statement filed with the     +
+Securities and Exchange Commission is effective. This prospectus is not an    +
+offer to sell these securities and it is not soliciting an offer to buy these +
+securities in any state where the offer or sale is not permitted.             +
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
                   SUBJECT TO COMPLETION, DATED JUNE   , 1999

PROSPECTUS

                                       Shares

                                [Splitrock Logo]

                                  Common Stock

                                  -----------

This is an initial public offering of    shares of common stock of Splitrock
Services, Inc. We are selling all of the shares of common stock offered under
this prospectus.

There is currently no public market for our shares. We currently estimate that
the initial public offering price will be between $   and $   per share. We
have applied to have our common stock approved for listing on the Nasdaq
National Market under the symbol "SPLT."

See "Risk Factors" beginning on page 8 to read about risks that you should
consider before buying shares of our common stock.

Neither the Securities and Exchange Commission nor any other regulatory body
has approved or disapproved these securities or passed upon the adequacy or
accuracy of this prospectus. Any representation to the contrary is a criminal
offense.

                                  -----------

<TABLE>
<CAPTION>
                                                       Per Share                Total
                                                       ---------                -----
<S>                                              <C>                    <C>
Public offering price..........................          $                      $
Underwriting discounts and commissions.........          $                      $
Proceeds, before expenses, to us...............          $                      $
</TABLE>

                                  -----------

The underwriters may purchase up to an additional    shares of common stock
from us at the initial public offering price less the underwriting discount to
cover over-allotments.

The underwriters are severally underwriting the shares being offered. The
underwriters expect to deliver the shares against payment in New York, New York
on      , 1999.

                                  -----------

Bear, Stearns & Co. Inc.

                     Credit Suisse First Boston

                                              Prudential Securities



                   The date of this prospectus is     , 1999
<PAGE>

                                   [GRAPHIC]

Header:Splitrock Fiber Backbone Network

Description:Graphic illustration of the continental United States marked with
symbols identifying:

      .  network operations centers in two locations identified by a red
         triangle inside a circle;

      .  core sites in 17 locations identified by a red triangle;

      .  hub sites in 29 locations identified by a red circle; and

      .  fiber backbone in inter-city segments identified by a blue line.

      Above and below the map is a list of locations, presented
      alphabetically by state, and within each state, alphabetically by
      city.

                                       2
<PAGE>

                                                                [SPLITROCK LOGO]

THE NETWORK FACTS

Target Coverage (Fall 1999)

      .  Coverage of the 150 largest markets

      .  Presence in all 50 states

      .  Targets 90% of U.S. businesses and households

      .  Local access coverage reaching more than 800 cities

Traffic

      .  Carries more than 1.2 billion minutes of Internet traffic per
         month (March 1999)

      .  Supports more than 800,000 Internet subscribers

      .  One of the largest nationwide network service providers
         supporting Internet traffic in the U.S.

Quality

      .  Network monitoring 24 hours a day, 7 days a week in both New York
         and Texas

      .  Splitrock is one of the highest-rated nationwide network service
         providers with network performance that is consistently reliable
         and fast

                               Splitrock's Network Performance

<TABLE>
<CAPTION>
                                                                Inverse 1999
                                                                   Rating*
                                                             -----------------------
         Selected Performance Attributes                     Jan  Feb  Mar  Apr  May
         -------------------------------                     ---  ---  ---  ---  ---
         <S>                                                 <C>  <C>  <C>  <C>  <C>
         Evening-Hour Call Success..........................   B    A+   A+   A+  A+
         Business-Hour Call Success.........................   A    A+   A    A   A+
         24-Hour Call Success...............................   A    A+   A    A   A+
         Modem Connect Speed................................   A+   A+   A+   A+  A+
         Average Web Throughput.............................   A+   A+   A+   A+  A+
</TABLE>

              * Inverse Technology, Inc. rates the network performance of all
                major nationwide Internet service providers by making more
                than 250,000 test calls per month. The national providers
                compared in the Inverse rating are: AOL, AT&T, Cable &
                Wireless, CompuServe, Earthlink, GTE, IBM, Microsoft Network,
                Mindspring, NETCOM, Prodigy (Splitrock) and UUNET. Our ratings
                equaled or exceeded the industry average in each of the
                categories shown above. The selected performance attributes
                shown in the table above do not include all performance
                attributes measured by Inverse. See "Business--Our Network--
                Network Performance."

Fiber Backbone

      .  Splitrock recently entered into an agreement to acquire long-term
         indefeasible rights to use four dark fiber strands, with an
         option to use up to 12 additional dark fibers, in the nationwide
         fiber optic network currently under construction by Level 3
         Communications. The fiber will be delivered in segments that are
         expected to become available from the end of 1999 through the
         first quarter of 2001. When completed, our fiber network will
         cover approximately 15,000 route miles.


                                       1
<PAGE>

                               PROSPECTUS SUMMARY

   This summary highlights some of the information in this prospectus. The
summary may not contain all of the information that is important to you. This
prospectus includes forward-looking statements which involve risks and
uncertainties. You should carefully read the entire prospectus, including the
risk factors and the financial statements, before deciding whether to invest in
our common stock.

                            Splitrock Services, Inc.

Our Company

   We are a facilities-based provider of advanced data communications services.
We market our services to Internet service providers, telecommunications
carriers and other businesses throughout the United States. We own and operate
a state-of-the-art, broadband access network that:

  .  consistently achieves among the highest performance ratings in the
     industry for network reliability, speed and throughput;

  .  currently handles more than 1.2 billion minutes of use per month;

  .  reaches businesses and households in every U.S. market with a population
     of at least 100,000 as well as many smaller markets; and

  .  employs asynchronous transfer mode (ATM) switches at every point-of-
     presence (POP).

   The combination of our existing broadband access network with our pending
acquisition of significant fiber optic facilities positions us to deliver a
broad array of end-to-end data communications services on our own network,
including:

  .  dial and dedicated Internet access;

  .  Internet access for higher bandwidth services, such as digital
     subscriber line (DSL) and cable modem;

  .  value-added services such as virtual private networks and web hosting;
     and

  .  bandwidth leasing and colocation services.

   We currently provide Internet dial access and related services to Prodigy
Communications Corporation, our primary customer and one of the largest
Internet service providers in the United States. Prodigy recently has announced
a definitive agreement to acquire the Internet access customer base of Cable &
Wireless USA, which we believe will result in a significant increase in Prodigy
subscribers. We believe that our relationship with Prodigy and our high
performance ratings have demonstrated our strength as a network operator and
positioned us to expand our customer base and service offerings. Leveraging our
demonstrated network capabilities, we have recently entered into significant
new customer relationships with Juno Online Services and InfiNet. Juno, a
leading provider of Internet and e-mail services, currently has more than
200,000 subscribers for its billable Internet services launched in July 1998,
and has created more than 6.8 million free e-mail accounts since April 1996.
InfiNet, a consortium sponsored by Knight-Ridder, Gannett and Landmark
Communications, provides Internet access and web publishing solutions to nearly
100,000 subscribers nationwide.

                                       2
<PAGE>


Our Strategy

   Our mission is to strengthen our position as a leading facilities-based
provider of advanced data communications services. To achieve this objective,
our business strategy focuses on the following key principles:

  .  expanding our direct marketing activities, increasing the size of our
     sales force and developing alternative distribution channels to
     capitalize on the expected growth in demand for network services;

  .  broadening our portfolio of service offerings;

  .  exploiting the capabilities of our advanced nationwide communications
     network;

  .  building strong customer loyalty through superior customer service;

  .  leveraging our experienced management team;

  .  increasing and optimizing total network utilization by offering
     comprehensive services and targeting both daytime business users and
     evening consumer users to balance our network's usage; and

  .  evaluating strategic alliances and acquisitions that increase traffic
     over our network.

Our Market Opportunity

   According to industry reports, data communications is one of the fastest
growing segments of the global telecommunications market. Forrester Research
estimates that business Internet access and hosting services will grow from
$3.7 billion in 1998 to approximately $57 billion in 2003. Forrester also
projects that consumer Internet access spending will grow from approximately $7
billion in 1998 to approximately $20 billion in 2003.


Our Network

   As of April 30, 1999, our broadband access network included 212 operational
POPs. When our network is completed later this year, we expect to have
approximately 370 active POPs with a physical presence in all 50 states,
targeting over 90% of all U.S. businesses and households with a local call. We
have deployed ATM switches at every core, hub and remote POP of our network.
This network architecture, which we call "ATM-to-the-Edge(TM)," enables us to
serve as a broad-based provider of data communications services through the
creation of a platform that efficiently delivers multiple services, such as
Internet access, virtual private networks and web hosting, across multiple
protocols, including Internet Protocol ("IP"), frame relay and ATM. The
flexibility inherent in our network design allows us to expand our service
offerings to provide fully integrated data, video and voice services. This
flexibility also allows us to incorporate future technological innovations into
our network architecture with a lower incremental investment than that required
by other communications service providers with legacy systems that have
separate networks for voice and data.

   As part of our ongoing efforts to further expand and enhance our network and
service offerings, we have agreed to acquire the indefeasible rights to use
four dark fiber strands in a state-of-the-art fiber optic network currently
under construction by Level 3 Communications, with an option to use up to 12
additional fibers. This nationwide fiber network will cover approximately
15,000 route miles and will be delivered in segments that are expected to
become available from the end of 1999 through the first quarter of 2001. The
combination of this fiber optic backbone with our broadband access network
positions us to:

  .  deliver, on our own facilities, a broad array of end-to-end data
     communications services at the high level of quality and reliability
     increasingly demanded by customers;

  .  reduce significantly our network costs as a percentage of revenues as we
     substitute the acquired bandwidth for existing leased circuit
     arrangements with various telecommunications carriers;


                                       3
<PAGE>

  .  expand our service offerings by providing bandwidth leasing services on
     a stand alone basis or bundled with our other services;

  .  increase the reliability and redundancy of our network; and

  .  increase the variety of service options and speeds available to
     customers.

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

   We were incorporated in Texas on March 5, 1997 and reincorporated in
Delaware on May 8, 1998. Our headquarters are located at 8665 New Trails Drive,
The Woodlands, Texas 77381. Our telephone number at that location is (281) 465-
1200. Our website address is www.splitrock.net. The information contained on
our website is not part of this prospectus.

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

   The terms "the Company," "Splitrock," "we," "our," and "us," as used in this
prospectus refer to Splitrock Services, Inc. Investors should carefully
consider the information set forth under "Risk Factors." Technical terms that
are important to an understanding of our business are defined in the Glossary
of Terms beginning on page G-1 of this prospectus. Except as otherwise noted,
the information in this prospectus (1) assumes that the underwriters' over-
allotment option will not be exercised, and (2) reflects a 100-for-1 split of
our common stock that was effected on June 3, 1997 and a 10-for-1 split of our
common stock that was effected on August 8, 1997.

                                       4
<PAGE>

                                  The Offering

Common stock offered by
us..........................
                                  shares

Common stock to be
outstanding after this
offering....................
                                  shares

Use of proceeds.............
                              We intend to use the net proceeds from this
                              offering to fund:

                              .  capital expenditures, including the
                                 acquisition of rights to use dark fiber and
                                 related electronics equipment and the
                                 completion of our broadband access network;

                              .  operating losses, working capital requirements
                                 and other general corporate purposes; and

                              .  possible future acquisitions or strategic
                                 investments.

Proposed Nasdaq National
Market symbol...............
                              SPLT

   The number of shares of common stock to be outstanding after this offering
is based on the 82,915,500 shares outstanding as of April 30, 1999 and includes
the    shares of common stock being sold by us in this offering. The shares of
common stock to be outstanding after this offering excludes:

  .  any shares of common stock to be issued pursuant to the over-allotment
     option;

  .  2,642,613 shares of common stock issuable on or after July 26, 1999,
     upon the exercise of outstanding warrants with an exercise price of
     $0.01 per share;

  .  4,634,300 shares of common stock issuable upon the exercise of
     outstanding options with a weighted average exercise price of $2.58 per
     share; and

  .  14,250,200 shares of common stock reserved for issuance upon the
     exercise of options available to be granted under our stock option
     plans.

                                       5
<PAGE>


                             SUMMARY FINANCIAL DATA

   Our statement of operations data for the period from inception (March 5,
1997) to December 31, 1997 and for the year ended December 31, 1998, and our
balance sheet data as of December 31, 1997 and 1998, shown in the table below
are derived from our audited financial statements. Our statement of operations
data for the three months ended March 31, 1998 and 1999 and our balance sheet
data as of March 31, 1999 have been derived from our unaudited financial
statements which, in the opinion of management, include all adjustments,
consisting only of normal recurring adjustments, necessary for a fair statement
of the results for the unaudited interim periods presented. You should read
this information together with our financial statements and the notes relating
to those statements and with the section entitled "Management's Discussion and
Analysis of Financial Condition and Results of Operations" appearing elsewhere
in this prospectus. Results of operations for the periods presented are not
necessarily indicative of results of operations for future periods.

   The "As Adjusted" summary balance sheet data reflects the sale of the shares
of common stock offered by this prospectus at an assumed initial public
offering price of $   per share, after deducting the underwriting discount and
the estimated offering expenses payable by us. For more information, see "Use
of Proceeds."

<TABLE>
<CAPTION>
                          Period from
                           Inception
                           (March 5,   Year Ended
                         1997) through  December    Three Months Ended March 31,
                         December 31,      31,      ------------------------------
                             1997         1998           1998            1999
                         ------------- -----------  --------------  --------------
                             (in thousands, except share and per share data)
<S>                      <C>           <C>          <C>             <C>
Statement of Operations
 Data:
  Revenues..............  $    22,708  $    63,611  $       16,494  $       16,352
  Operating expenses:
    Splitrock network
     costs..............        2,362       32,912           3,955          16,022
    Legacy network
     costs..............       25,804       58,292          12,316          13,029
    Selling, general and
     administrative.....        1,276        6,390             859           2,570
    Depreciation and
     amortization.......        3,500       13,850           2,820           4,635
                          -----------  -----------  --------------  --------------
      Total operating
       expenses.........       32,942      111,444          19,950          36,256
                          -----------  -----------  --------------  --------------
  Loss from operations..      (10,234)     (47,833)         (3,456)        (19,904)
  Other income
   (expense):
    Interest income.....          348        5,393             107           2,604
    Interest expense....         (235)     (15,390)           (349)         (8,191)
                          -----------  -----------  --------------  --------------
  Loss before income
   tax..................      (10,121)     (57,830)         (3,698)        (25,491)
  Provision for income
   tax..................          --           --              --              --
                          -----------  -----------  --------------  --------------
  Net loss..............  $   (10,121) $   (57,830) $       (3,698) $      (25,491)
                          ===========  ===========  ==============  ==============
  Net loss per share--
   basic and diluted....  $     (0.24) $     (0.73) $        (0.05) $        (0.31)
                          ===========  ===========  ==============  ==============
  Weighted average
   shares--basic and
   diluted..............   42,824,000   78,844,000      76,800,000      82,876,000
</TABLE>

                                       6
<PAGE>


<TABLE>
<CAPTION>
                                                          As of March 31, 1999
                                                          ---------------------
                                                           Actual   As Adjusted
                                                          --------  -----------
                                                             (in thousands)
<S>                                                       <C>       <C>
Balance Sheet Data:
  Cash and cash equivalents.............................. $ 23,365     $
  Unrestricted investments...............................   87,793
  Restricted investments (1).............................   44,356
  Property and equipment, net............................   84,833
  Total assets...........................................  257,065
  Long-term debt and capital lease obligations (including
   current portion)......................................  272,844
  Stockholders' equity (deficit).........................  (55,925)
</TABLE>
<TABLE>
<S>                                         <C>           <C>          <C>            <C>

<CAPTION>
                                             Period from
                                              Inception
                                              (March 5,
                                            1997) through  Year Ended  Three Months Ended March 31,
                                            December 31,  December 31, ------------------------------
                                                1997          1998         1998            1999
                                            ------------- ------------ -------------- ---------------
                                                                 (in thousands)
<S>                                         <C>           <C>          <C>            <C>
Other Financial Data:
  Capital expenditures.....................    $16,969      $ 45,261   $       2,508  $        15,292
  EBITDA (2)...............................     (6,734)      (33,983)           (636)         (15,269)
  Cash provided by (used in):
    Operating activities...................     (2,233)         (735)         (4,874)         (32,052)
    Investing activities...................    (17,198)     (169,512)         (2,740)          29,765
    Financing activities...................     27,141       190,867           3,253           (2,678)
</TABLE>

- --------

(1) Restricted investments as of March 31, 1999, represents escrowed funds
    that, together with interest received on those funds, will be sufficient to
    pay, when due, the next three semi-annual interest payments on our
    outstanding 11 3/4% senior notes.
(2) EBITDA is defined as net loss plus net interest expense, provision for
    income taxes, depreciation and amortization. EBITDA is presented as it is
    commonly used by certain investors to analyze and compare operating
    performance and to determine a company's ability to service and/or incur
    debt. However, EBITDA should not be considered in isolation or as a
    substitute for net income, cash flow or other income or cash flow data or
    as a measure of a company's profitability or liquidity and is not a measure
    in accordance with generally accepted accounting principles. EBITDA is not
    necessarily comparable with similarly titled measures reported by other
    companies.

                                       7
<PAGE>

                                  RISK FACTORS

   You should carefully consider the risks described below before making an
investment decision. The risks and uncertainties described below are not the
only ones facing our company. Additional risks and uncertainties not presently
known to us or that we currently consider immaterial may also impair our
operations. If any of the following risks actually occur, our business,
financial condition or results of operations could be materially adversely
affected. In this case, the trading price of the common stock could decline,
and you may lose all or part of your investment.

   We make many forward-looking statements in this prospectus that are not
based on historical facts, but discuss our future expectations. You can
identify these statements by our use of forward-looking terms, such as
"anticipates," "believes," "plans," "expects," "future," "intends" and similar
expressions. Because these forward-looking statements involve risks and
uncertainties, there are important factors that may cause our actual results to
differ materially from those expressed or implied in our forward-looking
statements, including those discussed under this section and elsewhere in this
prospectus.

Our business is difficult to evaluate because we have a limited operating
history and implementation of our current business plan is not reflected in our
historical financial statements.

   We were incorporated and commenced operations in March 1997. Accordingly, we
have a limited operating history from which you can evaluate our business and
prospects. In addition, we currently derive substantially all of our revenues
from Internet dial access services. We are now significantly expanding our
sales and marketing effort and our service offerings with the expectation of
broadening our customer base. We are also making a substantial capital
investment to acquire exclusive rights to use a fiber optic backbone, and
neither the revenues nor the expenses that may be associated with this
investment are reflected in our historical financial statements. As a result,
not only is our operating history limited, but our historical financial
statements do not reflect important elements of our business plan on a going
forward basis. The combination of these factors may make evaluation of our
business and prospects difficult.

As a participant in a new and rapidly evolving business, we face risks and
uncertainties relating to our ability to successfully implement our business
plan.

   We have developed a business plan in the context of the rapidly evolving
data communications industry that leverages our current service offerings and
technical expertise and expands our operations into new service areas. The
risks and uncertainties associated with implementing our business plan relate
to:

  .  completing the construction and installation of our broadband access
     network;

  .  expanding our sales and marketing activities;

  .  expanding and scaling operations support systems for planned services;

  .  providing services to our customers that are reliable and cost-
     effective;

  .  responding to technological development or service offerings by
     competitors;

  .  acquiring and integrating our fiber backbone into our network;

  .  increasing awareness of our brand;

  .  identifying and integrating strategic acquisitions and alliances; and

  .  attracting and retaining qualified personnel.

If we are unsuccessful in addressing these risks and uncertainties, our
business, results of operations and financial condition will be materially
adversely affected.

                                       8
<PAGE>

We have a history of losses and we expect to continue to incur losses in the
foreseeable future.

   We have incurred net losses and negative cash flows from operations since
our inception and we expect to continue to do so for the foreseeable future.
Starting up our company and building our network has required substantial
capital and other expenditures. As a result, we reported net losses of
approximately $57.8 million and $25.5 million, respectively during the year
ended December 31, 1998 and the three months ended March 31, 1999, and incurred
negative cash flows from operations of approximately $0.7 million and
$32.1 million for the same periods. As of March 31, 1999, we had an accumulated
deficit of $93.4 million. We cannot assure you that we will be able to achieve
or sustain revenue growth, profitability or positive cash flow on either a
quarterly or annual basis.

We currently depend on Prodigy for substantially all of our revenues, and our
revenues could decrease significantly if the number or usage of Prodigy
subscribers decreases or if Prodigy ceases to be a customer.

   We currently derive substantially all of our revenues from Prodigy. Prodigy
accounted for 100%, 99% and 99% of our revenues for the period from inception
through December 31, 1997, the year ended December 31, 1998, and the three
months ended March 31, 1999, respectively. While we expect revenues from
Prodigy to decrease as a percentage of our total revenues in future periods, we
believe that Prodigy will continue to account for a significant portion of our
revenues. The initial four-year term of our agreement with Prodigy expires on
June 30, 2001. Prodigy may also terminate our agreement prior to June 30, 2001
if (1) we fail to meet specified service level objectives or otherwise fail to
comply with the agreement or (2) Prodigy gives us 12 months' notice of
termination and pays us a termination fee of $5.0 million until July 1, 1999
and $3.0 million after that date. The loss of Prodigy as a customer would have
a material adverse effect on our business, financial condition and results of
operation.

   Prodigy operates in a highly competitive environment and competes with a
wide range of national, regional and local Internet service providers. A
decrease in the number of Prodigy subscribers or their usage would likely
result in a corresponding decrease in our revenues under our agreement with
Prodigy. Prodigy reports that a majority of its subscriber enrollments result
from bundling arrangements with personal computer manufacturers and Microsoft.
Prodigy's loss of these arrangements and relationships or a decrease in the
number of enrollments it receives as a result of these marketing channels could
adversely affect our results of operations.

   Prodigy's results may be affected by seasonal factors. Historically, the
growth in Prodigy subscribers and their total usage has been higher in the
first and fourth quarters of the calendar year, in part due to increased
marketing efforts and consumer demand during the year-end holiday season. The
seasonal nature of Prodigy's business could affect our quarterly revenues.

We may not be able to hire and retain qualified employees.

   Our future success depends on our ability to attract, train, motivate and
retain highly skilled employees, especially qualified, competent and motivated
sales and marketing staff with contacts and expertise in the communications
sector. Competition for employees in the data communications industry,
especially sales and marketing personnel, is intense and our business plan
depends on hiring a significant number of these individuals. We may be unable
to retain our key employees or attract, assimilate or retain other highly
qualified employees in the future. We have from time to time in the past
experienced, and we expect to continue to experience in the future, difficulty
in hiring and retaining highly skilled employees with appropriate
qualifications.

We depend on our key management personnel for our future success.

   Our future success depends to a significant extent on the continued service
and coordination of our management team, particularly Kwok L. Li, our Chairman
of the Board and Chief Technical Officer, and

                                       9
<PAGE>

William R. Wilson, our Chief Executive Officer. The departure of any of our
officers or key employees could have a material adverse effect on our business,
financial condition and results of operations. Mr. Li currently acts as a
consultant for Lucent Technologies, Inc. and is the majority owner of Linsang
Partners L.L.C. Mr. Li devotes a portion of his work time to Lucent and
Linsang. Mr. Li's inability to devote his time exclusively to our affairs could
have a material adverse effect on our business.

Our quarterly financial results may not be a good indicator of future results
and may fluctuate significantly and could result in lower prices for our stock.

   We expect our quarterly revenues, expenses and operating results to
fluctuate significantly in the future as a result of a variety of factors, some
of which are outside of our control. As a result, we believe that quarter to
quarter comparisons of our operating results are not a good indication of our
future performance and it is possible that our operating results may be below
the expectations of securities analysts or investors in some future period. If
the latter occurs, the trading price of our common stock would likely decline,
perhaps significantly. The factors which affect whether our results fluctuate
include:

  .  the number and level of usage of Prodigy subscribers;

  .  demand for network and Internet access services;

  .  capital expenditures and other costs relating to the construction and
     installation of our network;

  .  marketing and other expenses aimed at increasing our customer base;

  .  pricing changes and the introduction of new products or services by us
     or our competitors;

  .  our ability to obtain sufficient supplies of sole- or limited-source
     equipment and telecom facilities on a timely basis;

  .  our ability to balance the use of our network over a 24-hour period;

  .  potential adverse regulatory developments;

  .  delays in the construction of our fiber optic backbone network;

  .  technical difficulties, system downtime, undetected software errors and
     other problems affecting the Internet generally or the operation of our
     network;

  .  economic conditions specific to the Internet and online media and
     general economic conditions; and

  .  longer sales cycles for newer service offerings.

   We base our expenses to a significant extent on our expectations of future
revenues. Most of our expenses are fixed in the short term, and we may not be
able to quickly reduce spending if our revenues are lower than we expect.
Moreover, in an attempt to enhance our long-term competitive position, we may
from time to time make decisions regarding pricing, marketing, services and
technology that could have a near-term material adverse effect on our business,
financial condition and operating results. For more information, see "Selected
Financial Data" and "Management's Discussion and Analysis of Financial
Condition and Results of Operations."

We face intense competition in the data communications services industry.

   The market for data communications, Internet and related services is
intensely competitive, quickly evolving and subject to rapid technological
change. We anticipate that competition will continue to intensify as the use of
data communications and the Internet grows. The tremendous growth and potential
size of the market have attracted many new start-ups as well as established
businesses from different industries. Our current and prospective competitors
fall into three major categories:

  .  companies that provide access services to Internet service providers
     with both residential and small business customers, including Verio,
     UUNET Technologies, Concentric Network, PSINet, and Netcom On-Line
     Communications Services;

                                       10
<PAGE>

  .  companies that provide access, virtual private network and other value-
     added services to medium and large businesses, including UUNET
     Technologies, Concentric Network, GTE Internetworking, and DIGEX, as
     well as most major long distance telephone companies; and

  .  companies with high-speed networks that provide bandwidth capacity and
     other network services, including IXC Communications, Qwest and Level 3
     Communications.

Some of these competitors have significantly greater market presence, brand
recognition and financial, technical and personnel resources than we do. Many
of our competitors may also have the ability to bundle Internet access and data
transmission with basic local and long distance telecommunications services.
This bundling of services may have an adverse effect on our ability to compete
effectively with them and may result in pricing pressure on us.

   We also believe that new competitors will enter the network services market
with new technologies and methods of distribution, including large computer
hardware, software and media and other technology and telecommunications
companies, resulting in greater competition and pricing pressure as more
capacity becomes available. For instance, cable companies, AT&T and Microsoft
have announced that they are exploring broadband services for high speed
Internet connectivity that will rely on cable modems and economical network
upgrades. Other companies have announced plans to provide Internet access via
wireless terrestrial and satellite-based technologies. This capacity will be
added to that of the U.S. long distance fiber optic networks owned by each of
AT&T, MCI WorldCom and Sprint, as well as numerous local networks. Others,
including Qwest, IXC Communications and Williams Companies, are deploying
additional networks that use advanced technology similar to that of our fiber
backbone being constructed by Level 3.

   The increase in the number of competitors in this industry has been
accompanied by vertical and horizontal integration and consolidation among
competitors. The number of businesses providing Internet-related and network
services is growing rapidly. We are aware of other companies, in addition to
those named above, that have entered into or are forming joint ventures or
consortia to provide services similar to those provided by us. Others may
acquire the capabilities necessary to compete with us through acquisitions. For
instance, America Online's acquisition of Netscape Communications Corporation
and related strategic alliance with Sun Microsystems will enable it to offer a
broader array of Internet protocol-based network services that could
significantly enhance its ability to appeal to the business marketplace and, as
a result, compete more directly with us.

   As a result of the increase in the number of competitors and the vertical
and horizontal integration in the industry, we currently encounter and expect
to continue to encounter significant pricing pressure and other competition in
the future. Increased price or other competition could result in erosion of our
market share and could have a material adverse effect on our business,
financial condition and results of operations. We cannot assure you that we
will have the financial resources, technical expertise, portfolio of services
or marketing and support capabilities to continue to compete successfully. For
more information, see "Business--Competition."

Increased industry capacity and other factors could lead to lower prices for
our services.

   The long distance transmission industry has been characterized by
overcapacity and falling prices since shortly after the break-up of AT&T in
1984. We expect that prices for communications services generally will continue
to fall over the next several years, primarily due to:

  .  recent technological advances that permit large increases in the
     transmission capacity of both new and existing fiber;

  .  strategic alliances or similar transactions, such as purchasing
     alliances for long distance capacity among local exchange carriers that
     increase the parties' purchasing power; and

  .  construction of new networks and competing satellite systems.


                                       11
<PAGE>

We face risks associated with entering new lines of business that could cause
our results to suffer.

   A key component of our strategy is to acquire fiber optic backbone that
increases our capacity to deliver services that require higher bandwidth and to
lease some of our fiber optic capacity to other companies. The following risks
are inherent in entering this new line of business:

  .  a potential decrease in the price for our bandwidth capacity resulting
     from a significant increase in capacity in the marketplace as networks
     currently under construction come on line;

  .  a lack of financial resources to make the necessary capital expenditures
     to take full advantage of the bandwidth available to us;

  .  unexpected changes in regulatory requirements as a result of combining
     our old lines of business with the new lines of business;

  .  loss of management and marketing staff focus and attention;

  .  problems reaching our new target market for bandwidth leasing services;

  .  failure to integrate the sales and marketing of our new lines of
     business with our existing services; and

  .  inability to compete in the new line of business against established
     brand names.

We have incurred substantial indebtedness and may not be able to service our
debt.

   We have and will continue to have a significant amount of outstanding
indebtedness and debt service requirements. At March 31, 1999, our total debt
(including current portion of capital lease obligations) was $272.8 million and
stockholders' deficit was $55.9 million. Interest on this indebtedness totals
approximately $33 million per year. Our debt has important consequences for our
company and for you, including the following:

  .  our ability to obtain additional financing in the future, whether for
     working capital, capital expenditures, acquisitions or other purposes,
     may be impaired;

  .  a substantial portion of our cash flow from operations is dedicated to
     the payment of interest on our debt, which reduces the funds available
     to us for other purposes;

  .  our flexibility in planning for or reacting to changes in market
     conditions may be limited; and

  .  we may be more vulnerable in the event of a downturn in our business.

   Our ability to meet our debt service obligations will depend on our future
operating performance and financial results. This ability will be subject in
part to factors beyond our control. Although we believe that our cash flow will
be adequate to meet our interest payments, we cannot assure you that we will
continue to generate sufficient cash flow in the future to meet our debt
service requirements. If we are unable to generate cash flow in the future
sufficient to cover our fixed charges and are unable to borrow sufficient funds
from other sources, then we may be required to:

  .  refinance all or a portion of our existing debt;

  .  attempt to issue additional equity securities, which may result in
     dilution of ownership percentages for our existing shareholders; or

  .  sell all or a portion of our assets.

   We cannot assure you that a refinancing or offering of equity securities
would be possible. We cannot assure you that any asset sales would be timely or
that the proceeds which we could realize from asset sales would be sufficient
to meet our debt service requirements. In addition, the terms of our debt
securities and fiber agreements restrict our ability to sell or sublease our
assets and our use of the proceeds from any asset sale.

                                       12
<PAGE>

We will need additional capital in the future and additional financing may not
be available.

   We currently anticipate that our available cash resources, combined with the
net proceeds from this offering, will be sufficient to meet our anticipated
working capital and capital expenditure requirements through the end of 2000.
We cannot assure you that these resources will be sufficient for anticipated or
unanticipated working capital and capital expenditure requirements during this
period. Moreover, we expect that full implementation of our current business
plan will require that we raise substantial additional capital to fund our
needs during 2001 and 2002. We may also need to raise additional funds in order
to:

  .  take advantage of unanticipated opportunities, including more rapid
     international expansion or acquisitions of complementary businesses or
     technologies;

  .  develop new services; or

  .  respond to unanticipated competitive pressures.

   We may also raise additional funds through public or private debt or equity
financings if these sources of financing become available on favorable terms.
We cannot assure you that the additional financing we will need will be
available on terms favorable to us, or at all. If adequate funds are not
available or are not available on acceptable terms, we may not be able to take
advantage of unanticipated opportunities, develop new services or otherwise
respond to unanticipated competitive pressures. In that case, our business,
results of operations and financial condition could be materially adversely
affected. Our forecast of the period of time through which our financial
resources will be sufficient to support our operations is a forward looking
statement that involves risks and uncertainties, and actual results could vary
materially as a result of a number of factors, including those set forth above.

Restrictions imposed on us as a result of our current indebtedness could
adversely affect our ability to raise further capital.

   The terms of our current indebtedness contain financial and operating
covenants that limit the discretion of our management. These covenants place
significant restrictions on our ability to:

  .  incur additional indebtedness;

  .  create liens or other encumbrances;

  .  make dividend payments and investments;

  .  sell or otherwise dispose of assets; or

  .  merge or consolidate with other companies.

These restrictions could adversely affect our ability to raise further capital.

Any failure or delays by Level 3 in completing our new fiber optic backbone
network could materially and adversely affect our business.

   In April 1999, we entered into an agreement with Level 3 Communications
which gives us the exclusive right to use portions of Level 3's nationwide
fiber network for a twenty-year period. Our ability to fully implement our
present business plan could be adversely affected if Level 3 fails to perform
its obligations under this agreement. Level 3 may be delayed or prevented from
completing its fiber network and performing its obligations under our agreement
due to:

  .  insufficient capital resources;

  .  failure of its suppliers to provide the necessary equipment and
     services;

  .  regulatory changes affecting its rights of way;

  .  a change in management strategy; or

  .  presently unforeseeable legal, technical or other factors.

                                       13
<PAGE>

   Our business plan assumes that we will use dark fiber strands from Level 3
to deliver our services on the fiber optic portion of our network. If Level 3
does not successfully complete the installation of these dark fiber segments,
we may not be able to provide our services or provide them at the level of
quality, efficiency and economy assumed in our business plan. While we believe
that we could transfer our business to another supplier if Level 3's segments
are not available, we may not find an alternate network which would provide
comparable technology at a competitive cost. Level 3 has not completed
construction of its network segments. Any failure by Level 3 to complete
construction of, or deploy and maintain, its dark fiber segments could hurt our
business.

   Under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, we may be
required to notify the Federal Trade Commission of the transactions
contemplated by our agreement with Level 3. If this notification is required,
we will not be able to consummate the transactions contemplated by the Level 3
agreement until the requirements of the Hart-Scott-Rodino Act have been
satisfied and any applicable waiting period has expired or terminated.

Our business plan assumes that we will be able to expand and scale our network
infrastructure to accommodate increased volumes of traffic and customers;
however, our ability to scale our network by large proportions is unproven.

   Our network currently handles approximately 1.2 billion minutes of use per
month. However, our ability to scale the network up to meet our expected
customer usage levels while maintaining superior performance and integrating
and managing the fiber optic backbone is unproven. As the number of our
customers grows or as network usage increases, we may need to make additional
investments to expand and adapt our network infrastructure and maintain
adequate data transmission speeds. Any future expansion and adaptation of our
communications and facility infrastructure could require substantial financial,
operational, technical and management resources. As a result, our network may
not be able to achieve or maintain a sufficiently high capacity for data
transmission. Any failure on our part to achieve or maintain high data
transmission capacity could significantly reduce customer demand for our
services and hurt our business. If we are required to expand our network
significantly and rapidly due to increased usage, additional stress will be
placed upon our network hardware, traffic management systems and facilities.

Our business depends on the continued growth of the Internet and the demand for
data communications services and could suffer if demand declines.

   Our business would be adversely affected if use of the Internet and the data
communications industry does not continue to grow or grows more slowly than
expected. Factors that may inhibit the continued growth of the Internet and the
data communications industry include the following:

  .  the ability of the Internet and data networking infrastructure to
     support the growing demands placed on it;

  .  access costs;

  .  the performance and reliability of products and services as the number
     of users and amount of traffic increases;

  .  the ability of businesses to adequately address security and privacy
     concerns;

  .  the development of legislation or regulation related to the Internet;
     and

  .  the nature and pace of technological changes relating to the Internet
     and data communications.

In addition, websites have experienced interruptions in their service as a
result of outages and other delays occurring throughout the Internet network
infrastructure. If these outages or delays occur frequently, use of the
Internet as a commercial or business medium could, in the future, grow more
slowly than expected or decline. This would have an adverse affect on our
business.

                                       14
<PAGE>

Our network system could fail resulting in losses and loss of user confidence.

   Our success depends upon our ability to deliver reliable, high-speed access
to the Internet and upon the ability and willingness of our telecommunications
providers to deliver reliable, high-speed telecommunications service through
their networks. Our network, and other networks providing services to us, are
vulnerable to damage or cessation of operations from fire, earthquakes, severe
storms, power loss, telecommunications failures, excessive, sustained, or peak
user demand, and similar events, particularly if these events occur within a
high traffic location of the network. We cannot assure you that we will not
experience failures or shutdowns relating to individual POPs or even
catastrophic failure of the entire network. We carry business personal property
insurance to protect us against losses due to property damage and business
interruption. This coverage, however, may not be adequate or available to
compensate us for all losses that may occur. In any event, significant or
prolonged system failures or shutdowns could damage our reputation and result
in the loss of customers.

Our network is potentially vulnerable to viruses, break-ins or disruptions.

   Despite our security measures, our network's infrastructure is potentially
vulnerable to computer viruses, break-ins and similar disruptive problems
caused by our customers or others. Computer viruses, break-ins or other
problems could lead to interruptions, delays or cessation in service to our
customers. Furthermore, inappropriate use of the Internet by third parties
could also potentially jeopardize the security of confidential information
stored in the computer systems of our customers. This could, in turn, deter
potential customers and adversely affect our existing customer relationships.
Security problems represent an ongoing threat to public and private data
networks. The security services that we offer in connection with our customers'
networks cannot assure complete protection from computer viruses, break-ins and
other disruptive problems. Although we attempt to limit contractually our
liability in these instances, the occurrence of problems may result in claims
against us or liability on our part. These claims, regardless of their ultimate
outcome, could result in costly litigation and could have a material adverse
effect on our business or reputation or on our ability to attract and retain
customers for our products. Moreover, until more consumer reliance is placed on
security technologies available, the security and privacy concerns of existing
and potential customers may inhibit the growth of the Internet service industry
and our customer base and revenues.

We must keep pace with technological change and evolving industry standards to
remain competitive and increase our revenues.

   The market for data communications and Internet access and related services
is characterized by rapidly changing technology, evolving industry standards,
changes in customer needs and frequent new product and service introductions.
Our future success will depend, in part, on our ability to:

  .  effectively use and develop leading technologies;

  .  continue to develop our technical expertise;

  .  enhance our current services;

  .  develop new services that meet changing customer needs; and

  .  respond to emerging industry standards and technological changes in a
     cost-effective manner.

If our services do not continue to be compatible and interoperable with
products and architectures offered by various other members of the industry,
our ability to compete could be impaired. We cannot assure you that we will be
successful in responding to changing technology or market trends. In addition,
services or technologies developed by others may render our services or
technologies uncompetitive or obsolete. Furthermore, changes to our services in
response to market demand may require the adoption of new technologies that
could likewise render many of our assets technologically uncompetitive or
obsolete. Even if we do successfully respond to technological advances and
emerging industry standards, the integration of new technology may require
substantial time and expense, and we cannot assure you that we will succeed in
adapting our network infrastructure in a timely and cost-effective manner.

                                       15
<PAGE>

Changes in government regulations could adversely affect our business by
increasing costs or imposing limitations on the services we provide.

   To date, we have not been subject to common carrier regulation by the FCC or
state public utility commissions, but the growth of Internet telephony and
changing technology has led regulators to consider regulating some Internet
services. We do not believe that we are subject to this type of regulation.
However, if such regulation is applied to us, we could incur substantial
regulatory costs, including obligations to contribute directly to federal and
state universal service funds. Government entities have also attempted to apply
various forms of content regulation to Internet service providers, though in
some cases Congress or the courts have made decisions that shielded Internet
service providers from liability for the content that they convey. Other
legislative and regulatory decisions designed to encourage the development of
competition in the provision of telecommunications services could benefit
certain of our competitors that are affiliated with facilities-based carriers,
and may provide at least a temporary competitive advantage to those companies.
For more information, see "Business--Regulation."

   Furthermore, we are uncertain what additional laws and regulations regarding
taxation of our services may be adopted due to the increasing popularity,
development and use of data communications facilities and services and the
Internet in particular. A number of state and local government officials have
asserted the right or indicated a willingness to impose taxes on Internet-
related services and commerce, including sales, use and access taxes. We cannot
predict how the activities in our industry will be taxed, and therefore how the
costs of supplying our services may be affected, in the future because there is
no precedent for many of these activities. The imposition of new taxes,
directly or indirectly, on our services could adversely affect our business,
financial condition and results of operations depending on their magnitude and
our ability to pass on the costs to end-users.

Potential problems related to the Year 2000 may decrease use of Internet
services, cause us reputational harm and adversely affect our business.

   Some computer programs and systems use two digits, rather than four digits,
to define the applicable year and could fail or misfunction because they cannot
distinguish between 20th century and 21st century dates. This, in turn, could
result in a major system failure or miscalculations, including an inability to
process transactions, send invoices or engage in similar normal business
activities. The Internet and related service industries are susceptible to
year-2000 problems due to their reliance on computer hardware and software. If
these systems and programs should cause widespread problems across the
Internet, we expect users to curtail their use of the Internet dramatically
with consequent material adverse consequences to our revenues. However, we
cannot reasonably assess the magnitude of the consequences and risks of the
year-2000 problems on the basis of information currently available to us.

   A failure of our systems or the systems of our suppliers, customers and
third parties with whom we do business could result in financial losses, legal
liability and reputational harm to our customers. If Internet usage and our
customers' subscriber count is reduced, it could result in a significant
reduction in our revenues and have a material adverse effect on our business.
Furthermore, Prodigy's and our other customers' purchasing patterns may be
affected by year-2000 issues as they expend significant resources to correct
their current systems for year 2000 compliance. We have not incurred material
costs in ensuring year-2000 compliance to date and do not expect to incur
material costs to make our software year-2000 compliant.

We depend on sole- and limited-source suppliers for critical products and
services.

   We rely on other companies to supply key components of our network,
operations support, and administration infrastructure. These components include
critical telecommunications services and networking equipment, which, in the
quantities and quality demanded by us, are available only from sole- or
limited-sources. We depend on sole- or limited-source suppliers for the
following products or services:

  .  ATM switching products--Lucent Technologies supplies us with all of our
     ATM switching products, including the AC-120 switch, which is a key
     component of our network.

                                       16
<PAGE>

  .  Internet dial access platform--Bay Networks provides us with its
     Internet dial access platform.

  .  Routers--Cisco Systems manufactures the routers used in our network.

   We do not carry significant inventories of these components and have no
guaranteed supply arrangements for these components. Our suppliers also sell
products to our competitors and may in the future themselves become our
competitors. We cannot assure you that our suppliers will not enter into
exclusive arrangements with our competitors or stop selling their products or
components to us at commercially reasonable prices, or at all. Our inability to
obtain sufficient quantities of sole- or limited-source components or to
develop alternative sources, if required, could result in delays and increased
costs in expanding, and overburdening of, our network infrastructure. Any
delay, increased costs or overburdening of our network would have a material
adverse effect on our business, financial condition and results of operations.

   We also depend on local and long distance telephone companies to provide
telecommunications services to us and our customers. We experience delays from
time to time in receiving supplies and telecommunications services from our
suppliers. We cannot assure you that we will be able to obtain these supplies
or services on the scale, of the quality, and within the time frames required
by us at an affordable cost, or at all. Any failure to obtain these services on
a sufficient scale, on a timely basis or at an affordable cost would have a
material adverse effect on our business, financial condition and results of
operations.

We may be subject to legal liability for distributing or publishing content
over the Internet which could be costly for us to defend.

   Congress and several states have enacted or are considering measures that
would, under some circumstances, impose civil and criminal liability upon
Internet service providers, or providers of transmission capacity to Internet
service providers, for the transmission or dissemination of information and
materials. It is possible that costly claims will be made against us in
connection with the nature and content of the materials disseminated through
our networks. Currently, several private lawsuits of this sort are pending
against other online services companies and Internet access providers. Given
the heightened attention this topic has recently received, and will continue to
receive if any of the current lawsuits are successful, we might be required to
respond by investing substantial resources or discontinuing some of our service
offerings. These factors may also cause growth of Internet use to decline.
Finally, although we carry general liability insurance, it may not be adequate
to compensate us or it may not cover us in the event we become liable for
information carried on or disseminated through our networks. Any costs not
covered by insurance incurred as a result of liability or asserted liability
for information carried on or disseminated through our networks could hurt our
business.

We depend on other companies for peering and interconnection arrangements.

   We maintain peering and interconnection arrangements with other network
service providers so that we can exchange traffic with them. Recently,
companies that previously offered peering have eliminated peering relationships
or established new, more restrictive criteria for peering. We are uncertain
whether other network service providers will continue peering and
interconnection arrangements on acceptable terms or impose settlement charges
as a result of an increasingly competitive Internet services industry dominated
by a smaller group of national network providers. For more information, see
"Business--Our Network--Peering and Interconnection."

The network design and technical expertise that we depend on may be developed
or similarly deployed by others.

   Our success and ability to compete is dependent in part upon our technical
expertise. We do not have proprietary rights that would prevent our competitors
from deploying technologies or independently developing a network design and
technical expertise that are substantially equivalent or superior to our own.
For example, Sprint is in the process of designing a network which will contain
ATM switches at every core, hub and remote site. The construction by our
competitors of networks similar to our own may adversely affect our ability to
compete effectively.


                                       17
<PAGE>

Third parties may claim we infringe their proprietary rights and these claims
could result in increased costs.

   Although we do not believe we infringe the proprietary rights of any third
parties, we cannot assure you that third parties will not assert claims
against us in the future or that those claims will not be successful. We could
incur substantial costs and diversion of management resources to defend any
claims relating to proprietary rights, which could have a material adverse
effect on our business, financial condition and results of operations.
Furthermore, parties making those claims could secure a judgment awarding
substantial damages, as well as injunctive or other equitable relief that
could effectively block our ability to license our products in the United
States or abroad. Such a judgment would have a material adverse effect on our
business, financial condition and results of operations. In addition, we are
obligated under various agreements to indemnify the other party for claims
that we infringe on the proprietary rights of third parties. If we are
required to indemnify parties under these agreements, our business, financial
condition and results of operations could be materially adversely affected. If
someone asserts a claim relating to proprietary technology or information
against us, we may seek licenses to that intellectual property. We cannot
assure you, however, that we could obtain licenses on commercially reasonable
terms, if at all. The failure to obtain the necessary licenses or other rights
could have a material adverse effect on our business, financial condition and
results of operations.

We may not be able to successfully manage our expansion.

   Our anticipated future growth will continue to place a significant strain
on our management systems and resources. We expect that we will need to
continue to improve our financial and managerial controls and reporting
systems and procedures. We will also need to continue to expand and maintain
close coordination among our technical, accounting, finance and sales and
marketing organizations. Key members of our management team, including our
Chief Financial Officer, Chief Marketing Officer and Senior Vice President for
Network Operations, have joined us within the last few months. These
individuals have not previously worked together and are becoming integrated
into our management team. They may not be able to work together effectively or
successfully manage our growth. Our inability to manage growth effectively
could have a material adverse effect on our business, financial condition and
results of operations.

We may be unable to successfully acquire other companies, form strategic
alliances or successfully integrate any acquisition or alliance.

   We will evaluate strategic alliances and acquisitions both domestically and
internationally as they present themselves. Any future strategic alliance or
acquisition involves risks commonly encountered in business relationships. We
may encounter obstacles while integrating the operations and personnel of the
companies and the integration efforts may disrupt our ongoing business. Our
management may be unable to successfully incorporate licensed or acquired
technology and rights into our service offerings or maintain uniform
standards, controls, procedures and policies within the two organizations.
Changes in management resulting from an alliance or acquisition could impair
relationships with employees and customers. Any international alliance or
acquisition would involve the additional risks of doing business abroad,
including unexpected changes in the regulatory environments, export controls,
tariffs, fluctuations in currency exchange rates and potentially adverse tax
consequences. We may not successfully overcome these risks or any other
problems encountered in connection with strategic alliances or acquisitions.
In addition, we could incur substantial expenses, including the expenses of
integrating the parties' businesses in a strategic alliance or after an
acquisition, which could, in turn, adversely affect our business, financial
condition and results of operations.


Our directors have relationships that could present conflicts of interest.

   Our directors have relationships with other companies that could result in
potential conflicts of interest.

  .  Since 1991, Mr. Nakfoor has served as the Vice President of Securities
     Trading for Inversora Bursatil, S.A. de C.V., a wholly-owned subsidiary
     of Grupo Financiera Inbursa, S.A. de C.V., and an affiliate of our
     second largest shareholder, Carso Global. Carso Global currently
     controls our largest

                                      18
<PAGE>

     customer, Prodigy, on whose board Mr. Nakfoor has served since September
     1997. Prodigy's President and Chief Executive Officer, Samer Salameh,
     was a member of our board of directors until April 1999.

  .  Mr. Li was Director, Vice Chairman, Chief Technology Officer and owner
     of 12.4% of the common stock of Yurie, which was one of our principal
     suppliers until it was sold to Lucent. In connection with the sale of
     Yurie to Lucent, Linsang has agreed to make the services of Mr. Li
     available to Lucent to provide technical guidance for both the Lucent
     AC-120 and Lucent's entire line of other ATM switches. The agreement has
     a term of three years and terminates on May 29, 2001. Mr. Li is Chief
     Technical Officer, Carrier Network Division of Lucent and has agreed not
     to participate in designing, developing, producing, manufacturing or
     marketing multi-service access equipment other than for Lucent. Mr. Li
     and members of his family also control Linsang, which is our largest
     shareholder.

  .  Mr. Marshall C. Turner is also a member of the board of directors of
     Linsang Partners, LLC, a limited liability company controlled by Mr. Li
     and members of his family and our largest shareholder.

   As a result of these relationships, there is a potential for conflicts of
interest to arise when our directors are faced with a decision that could have
different implications for our company and the other companies with which our
directors have a relationship. Due to the nature of the potential conflicts of
interest presented by these relationships on an ongoing basis, we cannot assure
you that the directors involved will act in the best interests of our company
and our stockholders.

   Affiliates of ours have engaged in numerous transactions with us in the
past. These transactions were not necessarily a result of arms'-length
negotiations. We may engage in additional related party transactions in the
future and we cannot assure you that these transactions will be on arms'-length
terms. For more information, see "Certain Transactions."

Investors in this offering will suffer immediate and substantial dilution.

   The initial public offering price of our common stock will be substantially
higher than the net tangible book value per share of the common stock
outstanding immediately after this offering. Therefore, investors purchasing
shares in this offering will incur immediate and substantial dilution in net
tangible book value per share. You will incur further dilution if outstanding
options or warrants to purchase common stock are exercised. For more
information, see "Dilution."

We will retain broad discretion in using the net proceeds of this offering and
may spend a substantial portion in ways with which you do not agree.

   We will retain a significant amount of discretion over the application of
the net proceeds of this offering as well as over the timing of our
expenditures. Because of the number and variability of factors that determine
our use of the net proceeds of the offering, we may apply the net proceeds of
this offering in ways that vary substantially from our current intentions. For
more information, see "Use of Proceeds."

Our existing stockholders will maintain control of us following the offering.

   Our executive officers and directors and entities affiliated with them will,
in the aggregate, beneficially own approximately   % of our common stock
following this offering and   % if the over-allotment option is exercised in
full. These stockholders will be able to exercise control over all matters
requiring approval by our stockholders, including the election of directors and
the approval of significant corporate transactions. This concentration of
ownership may also have the effect of delaying or preventing a change in
control of our company, which could negatively affect our stock price. For more
information, see "Principal Stockholders."


                                       19
<PAGE>

Future sales of our common stock may negatively affect our stock price.

   Following the offering, we will have a large number of shares of common
stock outstanding and available for resale beginning at various points in time
in the future. The market price of our common stock could decline as a result
of sales of a large number of shares of our common stock in the market
following this offering, or the perception that sales could occur. These sales
also might make it more difficult for us to sell equity securities in the
future at a time and at a price that we deem appropriate. For more information,
see "Shares Eligible for Future Sale." Our directors and executive officers, as
well as our two largest shareholders, Linsang and Carso Global, who
collectively hold a total of       shares of common stock, have agreed not to
dispose of any shares of common stock, subject to limited exceptions, for a
period of 180 days after the date of this prospectus, without the prior written
consent of Bear, Stearns & Co. Inc., on behalf of the underwriters.

Provisions of our certificate of incorporation, bylaws and Delaware law could
deter takeover attempts.

   Our certificate of incorporation and bylaws and the Delaware corporations
law contain provisions that could have the effect of making it more difficult
for a third party to acquire, or discourage a third party from attempting to
acquire, control of us. These provisions could limit the price that investors
might be willing to pay in the future for shares of our common stock. For more
information, see "Description of Capital Stock."

There has been no prior public market for our common stock, and our stock price
may experience extreme price and volume fluctuations.

   Prior to this offering, there has been no public market for our common
stock. The initial public offering price for the shares will be determined by
negotiation between us and the representatives of the underwriters based upon
several factors and may not be indicative of prices that will prevail in the
trading market. For a discussion of the factors to be considered in determining
the initial public offering price, see "Underwriting."

   The stock market has experienced extreme price and volume fluctuations. The
market prices of the securities of technology companies and Internet-related
companies in particular have been especially volatile. This volatility has
included rapid and significant increases in the trading prices of Internet
companies following initial public offerings to levels that do not bear any
reasonable relationship to the operating performance of those companies and
large inter-day swings in the trading prices of their securities. These
fluctuations may materially affect the trading price of our common stock. We
cannot guarantee that you will be able to sell your shares at or above the
initial public offering price.

   In the past, stockholders have often instituted securities class action
litigation following periods of volatility in the market price for a company's
securities. Such litigation could result in substantial costs and the diversion
of management's attention and resources, which could have a material adverse
effect on our business, financial condition and results of operations.

The reliability of market data included in this prospectus is uncertain.

   Since we are a new company and operate in a new and rapidly changing market,
we have included market data from industry publications, including reports
produced by Forrester Research, Inc. and International Data Corporation. The
reliability of these data cannot be assured. These industry publications
generally indicate that they have obtained information from sources believed to
be reliable, but do not guarantee the accuracy and completeness of their
information. While we believe these industry publications to be reliable, we
have not independently verified their data. We also have not sought the consent
of any of these organizations to refer to their reports in this prospectus.

                                       20
<PAGE>

                                USE OF PROCEEDS

   We estimate that we will receive net proceeds from the sale of our common
stock offered by this prospectus of approximately $     million, or
approximately $     million if the underwriters' over-allotment option is
exercised in full. This estimate is based on an assumed initial public offering
price of $      per share and includes the deduction of the underwriting
discount and other estimated fees and expenses payable by us of approximately
$    .

   We intend to use the net proceeds from this offering principally for capital
expenditures, including:

  . the acquisition rights to use of dark fiber and the related electronics
    necessary to transmit data over the fiber;

  . the completion of our broadband access network;

  . the enhancement of our network to provide additional value-added services;
    and

  . the improvement of our network management, billing, and other back office
    systems.

   We will also use a portion of the net proceeds from this offering to fund
operating losses, working capital requirements and other general corporate
purposes.

   In addition, we may use a portion of the net proceeds from this offering for
possible future investments, acquisitions or strategic alliances in businesses
or assets that are related or complementary to our existing business. We
periodically evaluate investment, acquisition and strategic alliance candidates
as a key part of our growth strategy. We currently have no commitments or
agreements and are not involved in any negotiations with respect to these
transactions.

   We currently intend to allocate substantial proceeds among the foregoing
uses. The precise allocation of funds among these uses will depend on future
commercial, technological, regulatory and other developments in or affecting
our business, the competitive climate in which we operate and the emergence of
future opportunities. Because of the number and variability of factors that
determine our use of the net proceeds of the offering, we cannot assure that
our application of the net proceeds will not vary substantially from our
current intentions. Pending these uses, we intend to invest the net proceeds of
this offering in short-term U.S. investment grade and government securities.

                                DIVIDEND POLICY

   We have never paid any cash dividends on our common stock and do not
anticipate declaring or paying any cash dividends in the foreseeable future. We
currently intend to retain future earnings, if any, to fund the development and
growth of our business. Declaration or payment of future dividends, if any,
will be at the discretion of our board of directors after taking into account
various factors, including our financial condition, operating results and
current and anticipated cash needs and plans for expansion. In addition, our
ability to pay dividends on the common stock is restricted by certain covenants
in the indenture governing our outstanding 11 3/4% senior notes.

                                       21
<PAGE>

                                 CAPITALIZATION

   The following table shows our cash and cash equivalents, investments and
total capitalization:

  .  on an actual basis as of March 31, 1999; and

  .  as adjusted to reflect the sale of    shares of common stock offered by
     this prospectus at an assumed initial public offering price of $    per
     share, after deducting the underwriting discount and the estimated
     offering expenses payable by us.

   You should read this information together with our financial statements and
the notes relating to those statements and "Management's Discussion and
Analysis of Financial Condition and Results of Operations" and "Use of
Proceeds" appearing elsewhere in this prospectus.

<TABLE>
<CAPTION>
                                                 As of March 31, 1999
                                          ---------------------------------------
                                              Actual             As Adjusted
                                          ------------------  -------------------
                                          (in thousands, except share data)
<S>                                       <C>                 <C>
Cash and cash equivalents................ $           23,365     $
                                          ==================     ==============
Investments:
  Unrestricted investments--short term... $           87,793     $
  Restricted investments--short term.....             28,191
  Restricted investments--long term......             16,165
                                          ------------------     --------------
Total investments........................ $          132,149     $
                                          ==================     ==============
Long Term Debt:
  11 3/4% senior notes due 2008.......... $          258,257     $
  Capital lease obligations..............             14,587
                                          ------------------     --------------
Total long term debt (including current
 portion)................................            272,844     $
                                          ------------------
Stockholders' Equity (Deficit):
  Preferred stock, $.001 par value,
   25,000,000
   shares authorized, no shares issued...                --
  Common stock, $.001 par value,
   150,000,000 shares authorized,
   82,898,750 shares issued and
   outstanding actual;    shares issued
   and outstanding, as adjusted..........                 83
  Common stock warrants..................              2,849
  Additional paid-in capital.............             34,780
  Accumulated other comprehensive
   (loss)................................               (195)
  Accumulated deficit....................            (93,442)
                                          ------------------     --------------
    Total stockholders' equity
     (deficit)...........................            (55,925)
                                          ------------------     --------------
Total capitalization..................... $          216,919     $
                                          ==================     ==============
</TABLE>

The number of shares as adjusted for this offering excludes:

  .  any shares of common stock to be issued pursuant to the underwriters'
     over-allotment option;

  .  2,642,613 shares of common stock issuable on or after July 26, 1999,
     upon the exercise of outstanding warrants with an exercise price of
     $0.01 per share;

  .  4,634,300 shares of common stock issuable upon the exercise of
     outstanding options at April 30, 1999 with a weighted average exercise
     price of $2.58 per share; and

  .  14,250,200 shares of common stock reserved for issuance upon the
     exercise of options available at April 30, 1999 to be granted under our
     stock option plans.

                                       22
<PAGE>

                                    DILUTION

   You will experience immediate and substantial dilution in the net tangible
book value per share of your common stock.

   We calculate dilution to new investors by subtracting net tangible book
value per share of common stock after this offering from the per share price
paid by new investors in this offering. We calculate net tangible book value
per share by subtracting total liabilities from total tangible assets and then
dividing that number by the number of shares of common stock outstanding at
March 31, 1999. The following table illustrates the per share dilution:

<TABLE>
<S>                                                            <C>      <C>
Assumed initial public offering price per share...............          $
Net tangible book value deficit per share as of March 31,
 1999......................................................... $ (0.68)
Increase attributable to new investors........................
                                                               -------
Net tangible book value per share after this offering.........
                                                                        ------
Dilution per share to new investors in this offering..........          $
                                                                        ======
</TABLE>

   The following table summarizes, after giving effect to this offering as of
March 31, 1999, the total number of shares of common stock purchased from us,
the total consideration paid to us and the average consideration per share paid
by the existing stockholders and by the investors purchasing shares of common
stock in this offering at an assumed initial public offering price of $   per
share:

<TABLE>
<CAPTION>
                                 Shares Purchased  Total Consideration  Average
                                ------------------ ------------------- Price Per
                                  Number   Percent   Amount    Percent   Share
                                ---------- ------- ----------- ------- ---------
<S>                             <C>        <C>     <C>         <C>     <C>
Existing stockholders.......... 82,898,750         $34,788,000           $0.42
New investors..................
                                ----------   ---   -----------   ---     -----
  Total........................
                                ==========   ===   ===========   ===     =====
</TABLE>

   The calculations above exclude from the number of outstanding shares of
common stock:

  .  any shares to be issued pursuant to the underwriters' over-allotment
     option;

  .  2,642,613 shares of common stock issuable on or after July 26, 1999,
     upon the exercise of outstanding warrants with an exercise price of
     $0.01 per share;

  .  4,634,300 shares of common stock issuable upon the exercise of
     outstanding options at April 30, 1999 with a weighted average exercise
     price of $2.58 per share; and

  .  14,250,200 shares of common stock reserved for issuance upon the
     exercise of options available at April 30, 1999 to be granted under our
     stock option plans.

   If all of the options and warrants outstanding as of March 31, 1999, had
been exercised at that date, dilution to new investors in this offering would
be $     per share.

                                       23
<PAGE>

                            SELECTED FINANCIAL DATA

   Our statement of operations data for the period from inception (March 5,
1997) to December 31, 1997 and for the year ended December 31, 1998, and our
balance sheet data as of December 31, 1997 and 1998, shown in the table below
are derived from our audited financial statements. Our statement of operations
data for the three months ended March 31, 1998 and 1999 and our balance sheet
data as of March 31, 1999 have been derived from our unaudited financial
statements which, in the opinion of management, include all adjustments,
consisting only of normal recurring adjustments, necessary for a fair statement
of the results for the unaudited interim periods presented. You should read
this information together with our financial statements and the notes relating
to those statements and with the section entitled "Management's Discussion and
Analysis of Financial Condition and Results of Operations" appearing elsewhere
in this prospectus.

   The "As Adjusted" balance sheet data reflects the sale of the shares of
common stock offered by this prospectus at an assumed initial public offering
price of $   per share, after deducting the underwriting discount and the
estimated offering expenses payable by us.

<TABLE>
<CAPTION>
                                   Period from
                                    Inception
                                    (March 5,
                                  1997) through       Year Ended      Three Months Ended March 31,
                                  December 31,       December 31,    ------------------------------
                                      1997               1998            1998              1999
                                  ------------       ------------    ------------      ------------
                                            (in thousands, except share and per share data)
<S>                               <C>                <C>             <C>                 <C>
Statement of Operations
 Data:
  Revenues......................   $    22,708      $      63,611     $    16,494       $    16,352
  Operating expenses:
    Splitrock network
     costs......................         2,362             32,912           3,955            16,022
    Legacy network
     costs......................        25,804             58,292          12,316            13,029
    Selling, general and
     administrative.............         1,276              6,390             859             2,570
    Depreciation and
     amortization...............         3,500             13,850           2,820             4,635
                                   -----------      -------------     -----------       -----------
      Total operating
       expenses.................        32,942            111,444          19,950            36,256
                                   -----------      -------------     -----------       -----------
  Loss from operations..........       (10,234)           (47,833)         (3,456)          (19,904)
  Other income
   (expense):
    Interest income.............           348              5,393             107             2,604
    Interest expense............          (235)           (15,390)           (349)           (8,191)
                                   -----------      -------------     -----------       -----------
  Loss before income
   tax..........................       (10,121)           (57,830)         (3,698)          (25,491)
  Provision for income
   tax..........................           --                 --              --                --
                                   -----------      -------------     -----------       -----------
  Net Loss......................   $   (10,121)     $     (57,830)    $    (3,698)      $   (25,491)
                                   ===========      =============     ===========       ===========
  Net Loss per share--
   basic and diluted............   $     (0.24)     $     (0.73)      $     (0.05)      $     (0.31)
                                   ===========      ===========       ===========       ===========
  Weighted average
   shares--basic and
   diluted......................    42,824,000       78,844,000        76,800,000        82,876,000
</TABLE>

                                       24
<PAGE>


<TABLE>
<CAPTION>
                                           As of December 31,     As of March 31, 1999
                                           ------------------    ---------------------
                                             1997      1998       Actual   As Adjusted
                                           -------    -------    -------   -----------
                                                          (in thousands)
<S>                                        <C>        <C>        <C>       <C>
Balance Sheet Data:
  Cash and cash equivalents............... $7,710     $28,330    $23,365   $
  Unrestricted investments................    --      120,475     87,793
  Restricted investments (1)..............  3,472      58,477     44,356
  Property and equipment, net............. 38,504      73,899     84,833
    Total assets.......................... 54,388     296,141    257,065
  Long-term debt and capital lease
   obligations (including current
   portion)............................... 25,120     275,581    272,844
  Stockholders' equity (deficit).......... 20,407     (30,291)   (55,925)
</TABLE>

<TABLE>
<CAPTION>
                          Period from
                           Inception
                           (March 5,
                         1997) through  Year Ended  Three Months Ended March 31,
                         December 31,  December 31, -----------------------------
                             1997          1998         1998            1999
                         ------------- ------------ -------------- --------------
                                             (in thousands)
<S>                        <C>           <C>            <C>          <C>
Other Financial Data:
  Capital expenditures..   $ 16,969      $ 45,261       $  2,508     $ 15,292
  EBITDA (2)............     (6,734)      (33,983)          (636)     (15,269)
  Cash provided by (used
   in):
    Operating
     activities.........     (2,233)         (735)        (4,874)     (32,052)
    Investing
     activities.........    (17,198)     (169,512)        (2,740)      29,765
    Financing
     activities.........     27,141       190,867          3,253       (2,678)
</TABLE>
- --------
(1) Restricted investments as of March 31, 1999, represents escrowed funds
    that, together with interest received those funds, will be sufficient to
    pay, when due, the next three semi-annual interest payments on our
    outstanding 11 3/4% senior notes.
(2) EBITDA is defined as net loss plus interest expense, provision for income
    taxes, depreciation and amortization. EBITDA is presented as it is commonly
    used by certain investors to analyze and compare operating performance and
    to determine a company's ability to service and/or incur debt. However,
    EBITDA should not be considered in isolation or as a substitute for net
    income, cash flows or other income or cash flow data or as a measure of a
    company's liquidity and is not a measure in accordance with generally
    accepted accounting principles. EBITDA is not necessarily comparable with
    similarly titled measures reported by other companies.

                                       25
<PAGE>

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

   You should read the following discussion together with our financial
statements and the notes to those statements included elsewhere in this
prospectus. The results shown in this prospectus are not necessarily indicative
of the results we will achieve in any future periods. This discussion contains
forward-looking statements based upon our current expectations which involve
risks and uncertainties. Our actual results could differ materially from those
described in the forward-looking statements due to a number of factors,
including those set forth in the section entitled "Risk Factors" and elsewhere
in this prospectus.

Overview

   We are a facilities-based provider of advanced data communications services.
We market our services to Internet service providers, telecommunications
carriers and other businesses throughout the United States. Our services
include an array of Internet access and data communications services delivered
over our high capacity, facilities-based network.

   We were founded in March 1997. In July 1997, we acquired the existing legacy
network infrastructure of Prodigy Communications Corporation, and agreed to
build and operate a nationwide communications network and to provide network
services for Prodigy's customers. We initially provided service to Prodigy's
subscribers using Prodigy's legacy network. For locations outside the coverage
area of the legacy network, we have been using the IBM Global Services network.
From September 1997 through April 1998, we deployed our broadband access
network in metropolitan areas across the country. Over time, as more coverage
has become available on our access network, we have been decommissioning the
Prodigy legacy network POPs and reducing our usage of the IBM network. In July
1998, we raised $261 million through the issuance of our 11 3/4% senior notes
and warrants to purchase common stock principally to finance capital
expenditures related to the construction and installation of our broadband
access network. As of April 30, 1999, our network included 212 operational
POPs. Later this year, we expect to have approximately 370 active POPs, giving
us a physical presence in all 50 states, and targeting 90% of U.S. businesses
and households with a local call. Our expanding network is supported by two
network operations centers equipped with state-of-the-art network management
systems.

   As part of our ongoing efforts to further expand and enhance our network and
service offerings, we have agreed to acquire indefeasible rights to use four
dark fiber strands in a state-of-the-art fiber optic network currently under
construction by Level 3 Communications, LLC, with an option to acquire
indefeasible rights to use an additional 12 fibers. This nationwide fiber
network will cover approximately 15,000 route miles and will be delivered in
segments that are expected to become available from the end of 1999 through the
first quarter of 2001. The combination of this fiber optic backbone with our
broadband access network positions us to:

  .  deliver, on our own facilities, a broad array of end-to-end data
     communications services at the high level of quality and reliability
     increasingly demanded by customers;

  .  reduce significantly our network costs as a percentage of revenues as we
     substitute the acquired bandwidth for existing leased circuit
     arrangements with various telecommunications carriers;

  .  expand our service offerings by providing bandwidth leasing services on
     a stand alone basis or bundled with our other services;

  .  increase the reliability and redundancy of our network; and

  .  increase the variety of service options and speeds available to
     customers.

 Revenues

   Historically, Prodigy has been our primary customer and accounted for
substantially all of our revenues since our inception. For both the year ended
December 31, 1998 and the three months ended March 31, 1999 Prodigy accounted
for 99% of our revenues. While we expect revenues from Prodigy to decrease as a
percentage of our total revenues in future periods, we believe that Prodigy
will continue to account for a significant portion of our revenues.

                                       26
<PAGE>

   We provide network services, including Internet dial services and other
network connections, to Prodigy in exchange for a monthly service charge. The
service charge is calculated based upon the lower of two alternative rates,
subject to a minimum. One rate is calculated based upon the total hours of
usage and the other rate is calculated based upon the total number of
subscribers. The minimum monthly service charge is $3.5 million and will
increase to $4.0 million and $4.5 million on July 1, 1999 and July 1, 2000,
respectively. Through March 31, 1998, our Prodigy revenues were a function of
the amount of usage rather than the number of subscribers. However, since April
1998, these revenues have been, and over the long term are expected to continue
to be, a function of the number of subscribers rather than the amount of usage.
In addition, if the average monthly hours per subscriber exceeds a target
amount, we will be entitled to receive additional fees.

   Our original four-year agreement with Prodigy expires on June 30, 2001.
After the initial term either party may terminate the agreement upon 12 months'
prior written notice. If no notice is received, the term of the agreement is
automatically extended for successive 12-month terms. Under the agreement, we
are required, among other things, to provide Prodigy with financial and other
information and to meet network performance standards. We are required to
provide credits to Prodigy if we fail to meet these standards. Prodigy may
terminate the agreement following a cure period if we fail to meet specified
service level objectives or otherwise fail to comply with our agreement.
Prodigy may also terminate the agreement during the initial term without cause
by providing 12 months' prior written notice and paying a termination charge of
$5.0 million until July 1, 1999 and $3.0 million after that date.

   Prodigy has announced plans to discontinue Prodigy Classic, its original on-
line service, on or before October 31, 1999 because of a shift in business
focus to Internet-based products and services and a determination not to make
Prodigy Classic Year 2000 compliant. Prodigy has reported that, although it
will continue to encourage Prodigy Classic subscribers to migrate to Prodigy
Internet, it has had difficulty in generating this migration and a substantial
portion of the remaining Prodigy Classic subscribers lack the minimum hardware
requirements for the Prodigy Internet service. While we expect continued growth
in Prodigy Internet subscribers, we do not expect that any significant portion
of this growth will be attributable to the migration of Prodigy Classic
subscribers.

   On May 27, 1999, Prodigy announced that it had entered into a definitive
agreement to acquire the Internet access customer base of Cable & Wireless USA,
which we believe will result in a significant increase in Prodigy subscribers.

   In addition to providing Internet dial access and related services to
Prodigy, we began offering Internet dedicated access services on a limited
basis to select customers during the second half of 1998. Given the nature of
our network costs and the fact that current network utilization peaks in the
evening hours to support Prodigy's residential Internet subscribers, we are
targeting providers of daytime intensive traffic as well as providers of
evening intensive traffic to maximize network utilization throughout a 24-hour
period. We plan to focus on providing virtual private network services,
Internet dedicated access, web hosting and Internet dial access services.
Historically, in the data communications industry, providing virtual private
network services increases the length of the sales cycle when compared to
providing Internet dedicated access services. Because we are in the early
stages of building our sales force, we expect growth in revenues to fluctuate
from quarter to quarter depending on the volume of monthly revenue of our
customers and the actual date the service becomes billable to our customers. We
cannot assure you that we will achieve the balance of utilization of the
network facilities necessary to attain or maximize profitability or positive
cash flow from operations.

   Leveraging our demonstrated network capabilities, we have recently entered
into significant new customer relationships with Juno Online Services and
InfiNet. Juno, a leading provider of Internet and e-mail services, currently
has more than 200,000 subscribers for its Internet services launched in July
1998 and has created more than 6.8 million free e-mail accounts since April
1996. InfiNet, a consortium sponsored by Knight-Ridder, Gannett and Landmark
Communications, provides Internet access and web publishing solutions to nearly
100,000 subscribers nationwide. We began providing Internet dial access to
InfiNet's subscribers in the second quarter of 1999.

                                       27
<PAGE>

   As segments of our fiber backbone are constructed, we plan to use the
additional network capacity to offer bandwidth leasing services. However,
overcapacity could result from the construction of competing networks,
technological advances, strategic alliances, or a decline in the growth rate of
demand for bandwidth capacity. If this occurs, we could encounter significant
pricing pressure, which could limit the amount we could competitively charge
for these services.

 Splitrock Network Costs

   Our Splitrock network costs include all expenses incurred in connection with
designing, deploying and operating our network. These costs primarily include
leased telecommunication line charges for connecting our POPs to local central
offices and for backbone transmission, personnel expenses, and operating
expenses related to network operations, maintenance field operations and
facility management.

   Increases in Splitrock network operating costs relate to the increase in
Splitrock network facilities and line charges incurred in connection with the
growth in total subscriber usage. As of April 30, 1999, we had 212 operational
POPs and we expect to have approximately 370 operational POPs when our network
construction is completed later this year. We anticipate continued increases in
our network operating costs as additional lines and facilities are deployed.

   We are deliberately increasing our network operating expenditures to expand
our broadband access network and backbone capacity in anticipation of expected
increases in dial access and other services. We may incur expenditures to
increase our capacity to serve customers in advance of entering into new
customer relationships.

   During March 1999, in order to maintain the quality and reliability of our
network performance, we entered into an agreement with Lucent Technologies to
provide us with maintenance on our broadband access network. Prior to entering
into this maintenance arrangement with Lucent, we had performed our own
maintenance of equipment and have relied on warranties from our vendors. We
expect our maintenance costs to increase as POP sites are added to the
maintenance contract through year end.

   We expect our network operating costs to decrease significantly as a
percentage of revenues as we substitute our acquired fiber optic backbone
network for existing leased circuit arrangements with various
telecommunications carriers. Although we expect to incur new costs for
maintenance, colocation and software in connection with the fiber optic
network, we expect these new costs to be offset in future years by a larger
reduction in charges for backbone transmission. In connection with the services
we will provide to InfiNet, we will incur additional network operating expenses
that will largely offset our revenue from that customer through the end of
1999, while we transition InfiNet traffic from its legacy network to our
network.

 Legacy Network Costs

   Legacy network costs include all expenses incurred in connection with
operating and decommissioning the Prodigy legacy network. This includes
facility leases, line charges for Prodigy legacy network POPs, occupancy costs,
equipment maintenance costs and access fees for the IBM network, as well as
significant transition costs.

   Legacy network costs are expected to decline, as more coverage becomes
available on our own broadband access network. As the construction and
installation of our own network progresses, the Prodigy legacy network is being
decommissioned and usage of the IBM network is declining. As of April 30, 1999,
we had fully deactivated 94% of the original Prodigy legacy network POPs. We do
not expect to incur any significant legacy network costs beyond the end of
1999.

   The largest component of our legacy network costs are paid to IBM for usage
incurred on the IBM network. We have incurred quarterly costs from IBM of $6.3
million, $7.3 million, $11.0 million, $12.0 million, $12.6 million, and $11.5
million, respectively, for the six quarters from October 1, 1997 through March
31, 1999. The increase in costs through the fourth quarter of 1998 related to a
continued quarterly increase in total subscriber usage, coupled with an
increase in the hourly usage rate that went into effect at the beginning of the
second quarter of 1998. The IBM network costs have declined since the fourth
quarter of 1998 and we expect those costs to be substantially eliminated by the
end of 1999.


                                       28
<PAGE>

   During construction of new POP sites, access and transmission lines are
installed and charges are incurred as a POP site becomes operational.
Transition costs result from a duplication of expenses on both the new POP and
the associated legacy network POP until the new POP is operational and the
associated legacy network POP is decommissioned.

 Selling, General and Administrative Expenses

   Selling, general and administrative expenses consist of personnel and
operating costs relating to executive management, accounting and finance,
information systems, human resources, sales and marketing, customer support,
network planning, development, and administrative employees. We expect our
selling, general and administrative expenses to continue to increase in dollar
amount and as a percentage of revenue in 1999, 2000 and 2001 principally due to
the following factors:

  .  expansion of our sales and marketing force; and

  .  expansion of our back-office, customer care, billing, and administrative
     functions.

   We expect to make a substantial investment in our sales and marketing
programs to achieve and properly support the intended expansion in our customer
base. Through the combination of a direct sales force and alternative
distribution channels, we believe that we will be able to access markets and
increase revenue-producing traffic on our network. To implement our
distribution strategy, we are developing an in-house direct sales force. We
intend to utilize our direct sales force to market our services directly to
Internet service providers, carriers, value added service providers, and medium
and large businesses. We intend to utilize alternate distribution channels,
such as agents, resellers and wholesalers, to market our services to medium and
small businesses. We cannot assure you that we will be successful in our
marketing plan. In addition to the expanded sales force, we anticipate
continued back-office expansion, including the continued implementation of a
new customer care and billing system. We have also signed a lease for 69,000
square feet of additional office space, which we expect to be available for
occupancy by August 1999. This office lease will increase selling, general and
administrative costs and will also require additional capital expenditures for
furniture and fixtures and leasehold improvements.

 Depreciation and Amortization

   Depreciation and amortization expense consists primarily of depreciation of
network equipment. We anticipate that our depreciation and amortization
expenses will increase significantly as we record amortization on amounts
expected to be paid to acquire dark fiber rights and depreciation expenses for
the related electronic equipment.

 Net Losses

   We have incurred net losses since our inception in March 1997. We anticipate
that we will continue to incur net losses while we complete the construction
and installation of our nationwide network and expand our sales and marketing
force. The extent to which we continue to incur net losses is largely dependent
upon the timely deployment of the network, the rate at which we can expand our
customer and revenue base and our ability to maximize use of our nationwide
network.

Results of Operations

 Three Months Ended March 31, 1999 Compared to Three Months Ended March 31,
 1998

   Revenues.  Revenues for the three months ended March 31, 1999 totaled $16.4
million, a decrease of $0.1 million from revenues of $16.5 million for the
three months ended March 31, 1998. This decrease was due to a decrease in
revenues from Prodigy partially offset by a modest increase in revenues from
other customers. The decrease in revenues from Prodigy was a result of a change
in the methodology for calculating our charges to Prodigy. Our revenues from
Prodigy in the first quarter of 1998 were based upon the total hours of usage.
In contrast, our revenues from Prodigy in the first quarter of 1999 were based
on the total number of subscribers.

                                       29
<PAGE>

   Splitrock Network Costs.  Splitrock network costs for the three months ended
March 31, 1999 were $16.0 million compared to $4.0 million for the three months
ended March 31, 1998. This increase was due to the growth in the size of our
network from 51 operational POPs as of March 31, 1998 to 190 operational POPs
as of March 31, 1999. As a percentage of revenues, Splitrock network costs
increased to 98.0% of revenue for the three months ended March 31, 1999 from
24.0% of revenues for the three months ended March 31, 1998.

   Legacy Network Costs.  Legacy network costs for the three months ended March
31, 1999 were $13.0 million compared to $12.3 million for the three months
ended March 31, 1998. This increase was attributable to an increase in total
subscriber usage coupled with an increase in the hourly usage rate for the IBM
Network. As a percentage of revenues, legacy network costs increased to 79.7%
of revenue for the three months ended March 31, 1999 from 74.4% of revenues for
the three months ended March 31, 1998.

   Selling, General and Administrative Expenses.  Selling, general and
administrative expenses for the three months ended March 31, 1999 were $2.6
million compared to $0.9 million for the three months ended March 31, 1998. The
majority of this increase was due to an increase in personnel to support the
growth in the size of our network. In addition, in the third quarter of 1998,
we moved into a 25,000 square foot office facility in The Woodlands, Texas,
which significantly increased our occupancy costs. As a percentage of revenues,
selling, general and administrative expenses increased to 15.7% of revenue for
the three months ended March 31, 1999 from 5.2% of revenues for the three
months ended March 31, 1998.

   Depreciation and Amortization.  Depreciation and amortization was $4.6
million for the three months ended March 31, 1999 compared to $2.8 million for
the three months ended March 31, 1998. This increase was due to the increase in
equipment and facilities placed in service throughout 1998 and 1999.

   Interest Expense.  Interest expense was $8.2 million for the three months
ended March 31, 1999, compared to $0.4 million for the three months ended March
31, 1998. Historical interest expense was related to capital leases on
equipment and loans from a stockholder prior to completion of the senior notes
offering in July 1998. Beginning in the third quarter of 1998, interest expense
increased significantly due to the increased level of our borrowings in
connection with our existing 11 3/4% senior notes.

   Interest Income.  Interest income relates to the interest earned on
investments of cash on hand in investment grade commercial paper and money
market accounts. Interest income was $2.6 million for the three months ended
March 31, 1999, compared to $0.1 million for the three months ended March 31,
1998. This increase is due to the interest earned on the proceeds from our
senior notes offering. We anticipate a continued decline in interest income as
we use these funds to fund capital expenditures and operations.

   Income Taxes.  No provision for income taxes has been recognized because we
had operating losses for both tax and financial reporting purposes in all
periods.

   On March 31, 1999, we had approximately $35 million of gross deferred tax
assets comprised primarily of net operating loss carryforwards. Given our
history of operating losses, it is uncertain that we would realize such assets,
and so we have provided a reserve to reduce the carrying value of the asset to
zero. We will continue to assess the ability to realize the deferred tax assets
based on actual and forecasted results.

 Year Ended December 31, 1998 Compared to Period from Inception on March 5,
 1997 through December 31, 1997

   From inception on March 5, 1997 through June 30, 1997, we had not yet begun
deploying our network nor had we entered into our agreement with Prodigy. As a
result, we generated no revenue and incurred limited operating expenses prior
to the third quarter of 1997. Thus, any comparison of our results of operations
for the year ended December 31, 1998 with those results for the period from our
inception to December 31, 1997 is not meaningful.

                                       30
<PAGE>

   Since inception, we have focused on the construction and installation of our
network while maintaining and decommissioning, when appropriate, the Prodigy
legacy network. Through December 31, 1998, we had not focused on increasing
sales, as our network had not yet been completed. Prodigy represented our
primary source of revenue during both 1997 and 1998. In the second quarter of
1998, we began our efforts to raise capital to complete the construction and
installation of our nationwide network. On July 24, 1998, we issued and sold
$261.0 million in senior notes and warrants to acquire 2,642,613 shares of
common stock and began a campaign to recruit and employ the personnel necessary
to complete, operate and maintain our network.

   To support our expansion, we have been adding employees. At the end of 1997
and 1998, respectively, we had 67 and 188 full time employees and contractors.
Additionally, during 1998, we added our second state-of-the-art network
operations center in The Woodlands, Texas.

   Many of the employees we added represent field and office personnel for
construction management, assembly and installation, provisioning, and related
project management services for POP shelters.

Liquidity and Capital Resources

   Our operations have required substantial capital investment for the purchase
of communications equipment and the design and development of our network.
Capital expenditures were $45.3 million and $15.3 million for the year ended
December 31, 1998 and the three months ended March 31, 1999, respectively. We
expect that our capital expenditures will be substantially higher in future
periods in connection with the purchase of dark fiber and the related
facilities and telecommunications equipment.

   Since our inception, we have satisfied our cash requirements primarily
through the issuance of equity or debt securities. We have raised approximately
$298.1 million, including:

  .  $34.8 million through private sales of our equity securities, including
     $18.0 million invested by our senior management and directors and $15.6
     million invested by another major stockholder; and

  .  $263.3 million through the issuance of debt.

   In addition we have arranged $30.6 million in equipment financing, primarily
from equipment vendors and leasing companies.

   As of March 31, 1999, we had an accumulated deficit of $93.4 million, cash
and cash equivalents of $23.4 million, and restricted and unrestricted
investments of $132.1 million.

   Net cash used in operating activities was $32.1 million during the three
months ended March 31, 1999. The net cash used in operating activities in this
period was primarily attributable to the Company's net losses. Net cash used in
operating activities was $0.7 million for the year ended December 31, 1998.
During the year-ended December 31, 1998, the cash flow effect of net losses
were largely offset by increases of $42.0 million in current liabilities due to
the timing of payments for purchases to equipment vendors and accrued interest
to bond holders.

   Net cash provided by investing activities during the three months ended
March 31, 1999 was $29.8 million. This consisted of net proceeds of $46.6
million from the liquidation of restricted and unrestricted investments, offset
by $15.3 million used for purchases of property and equipment. Net cash used by
investing activities for the year ended December 31, 1998 was $169.5 million
and consisted primarily of the purchase of unrestricted investments of $119.5
million and $45.3 million in equipment purchases.

   Net cash used in financing activities for the three months ended March 31,
1999 was $2.7 million and consisted primarily of principal payments on capital
leases. Net cash provided by financing activities for the year ended December
31, 1998 was $190.9 million, which was derived primarily from the issuance of
our senior notes, net of issuance costs and proceeds restricted to finance
future interest payments.


                                       31
<PAGE>

   As of March 31, 1999, we had aggregate operating and capital lease payments
of $8.3 million remaining in 1999, and $9.0 million, $2.5 million, $1.4 million
and $0.9 million due in each of the next four years.

   We also have agreed to acquire indefeasible rights to use four dark fibers,
with an option to use up to 12 additional fibers, in the fiber optic network
under construction by Level 3 Communications, LLC. We are required to pay for
the dark fiber in segments as they become available, which is expected to occur
from the end of 1999 through the first quarter of 2001.

   We expect our future liquidity and capital requirements to relate primarily
to:

  .  capital expenditures;

  .  operating losses;

  .  debt service payments; and

  .  working capital and other corporate purposes.

   We currently estimate that our capital expenditures for 1999, 2000 and 2001
will be approximately $73 million, $139 million and $76 million, respectively,
including capital expenditures for:

  .  the acquisition of rights to use four dark fiber strands and the related
     electronics necessary to transmit data over the fiber;

  .  the completion of our broadband access network;

  .  the enhancement of our network to provide additional value added
     services; and

  .  the improvement of our network management, billing and other back office
     systems.

Actual capital expenditures will depend on numerous factors beyond our control
or ability to predict, including the availability of financing, the timing of
our acquisition of dark fiber, customer demand, competition, regulatory
developments, and general economic conditions. Moreover, our capital
requirements would increase significantly if we were to exercise our options to
acquire rights to use up to 12 additional dark fiber strands over and above the
four strands for which we have committed.

   We believe that the net proceeds from this offering will be sufficient to
meet our anticipated cash needs through the end of 2000. However, we cannot
assure you that our financial resources will be adequate to fund all of our
anticipated or unanticipated working capital requirements and capital
expenditures during this period. Moreover, we expect that full implementation
of our current business plan will require that we raise substantial additional
capital to fund our needs during 2001 and 2002. We may be required to raise
additional funds through public or private financing, strategic relationships
or other arrangements. The terms of our debt securities restrict our ability to
incur indebtedness, create liens, and make dividend payments and investments,
and may make it more difficult for us to raise the capital we will need to
fully implement our business plan. We cannot assure you that the additional
financing we will need, will be available on terms acceptable to us, or at all.
Furthermore, any additional equity financing may be dilutive to stockholders,
and debt financing, if available, may involve restrictive covenants and
significant interest expense.

Year 2000

   The year-2000 issue is the result of computer programs being written using
two digits, rather than four digits, to define the applicable year. Programs
that have time-sensitive software may recognize a date using "00" as the year
1900 rather than the year 2000. This could result in a major system failure or
miscalculations, including an inability to process transactions, send invoices
or engage in similar normal business activities. Due to its reliance on
computer hardware and software, the Internet and related service industries are
highly susceptible to the year-2000 issue. If the year-2000 issue should cause
widespread problems across the Internet, usage can be expected to decline
dramatically. Such an event would have a material adverse effect on our
financial condition and results of operations, the nature and extent of which
cannot reasonably be determined by us on the basis of information currently
available to us.

                                       32
<PAGE>

 Our Year 2000 Program

   We have established a program to ensure that, to the extent reasonably
possible, all systems are or will be year 2000 compliant prior to the end of
1999. Our Y2K program, designed with the assistance of an outside consultant,
consists of five phases:

  .  inventory of our potential exposures, including significant third-party
     supplier and customer relationships;

  .  analysis of the assets to determine compliance or non-compliance;

  .  remediation and contingency plan development;

  .  remediation; and

  .  testing of affected systems.

   A team consisting of our managers from Information Technology, Finance and
Operations has been established as the Y2K Readiness Team. With the assistance
of our outside consultant, the Y2K Readiness Team has designed an aggressive
schedule to identify information technology (IT) and non-IT assets requiring
compliance upgrades and a timetable for performance and testing of the affected
systems. In addition, the Y2K Program calls for validation of compliance by
significant suppliers and customers.

   Once identified, we will schedule detailed remediation steps to ensure that
internal systems and significant external suppliers and customers meet Y2K
Program compatibility requirements, or that sufficient contingency plans are in
place. Remediation and compliance validation are estimated for completion
during the second quarter of 1999.

 Current Status

   Our Year 2000 assessment is approaching final completion. An inventory of
computing, communications and facility systems has been prepared and validated.
Significant suppliers, including competitive local exchange carriers, have also
been identified for validation.

   We have completed the inventory for both our IT and non-IT systems and have
completed most of the analysis phase for these systems. We expect to complete
the analysis phases for these systems during the second quarter of 1999. The
Y2K Program calls for the completion of all phases for both IT and non-IT
Systems by the end of the second quarter of 1999.

   We have performed a technical review of significant third party suppliers
and customers and, if available, have surveyed the public year-2000 statements
issued by them. In addition, we have sent inquiry letters to certain third
party suppliers and customers requesting information regarding their
vulnerability to year-2000 issues. We will respond to these inquiries and
evaluate the responses we receive to determine if alternate business actions
will be necessary.

   To date, we have not incurred and do not anticipate incurring a significant
amount of costs to implement remedial actions required for year-2000
compliance.

 Contingency Plans

   If any significant systems, customers or suppliers are determined to have
questionable remediation potential, the Y2K Readiness Team will establish a
contingency plan to address the at-risk area during the analysis phase of the
overall project now underway. We are unable at this time to determine what
contingency plans, if any, may need to be implemented. As we progress through
the Y2K Program and identify specific risk areas, we will take appropriate
steps to implement remedial actions and contingency plans as required under the
circumstances.


                                       33
<PAGE>

 Risks

   The failure to correct a year-2000 issue could result in the interruption or
failure of certain normal business activities or operations. We believe that
the most reasonably likely worst-case scenario would result from interruption
or failure of third party services. Because we are dependent on a number of
third party vendors to provide network services, a significant year-2000-
related disruption of these network services could cause customers to consider
seeking alternate service providers, decrease Internet traffic generally or
cause a significant burden on customer service and technical support.

   We are not presently aware of any vendor-related year-2000 issue that is
likely to result in any disruption of this type. Although there is inherent
uncertainty in the year-2000 issue, we expect that as we progress in our Y2K
Program, the level of uncertainty about the impact of the year-2000 issue will
be reduced significantly.

Disclosures about Market Risk

   The following discusses our exposure to market risk related to changes in
interest rates, equity prices and foreign currency exchange rates. Market risk
generally represents the risk of loss that may result from the potential change
in the value of a financial instrument as a result of fluctuations in interest
rates and market prices. We have not traded or otherwise bought and sold
derivatives nor do we expect to in the future. We also do not invest in market
risk sensitive instruments for trading purposes.

   This discussion contains forward-looking statements that are subject to
risks and uncertainties. Actual results could vary materially as a result of a
number of factors including those set forth under the captions "Risk Factors--
We have incurred substantial indebtedness and may not be able to service our
debt" and "Risk Factors--We may need additional capital in the future and
additional financing may not be available."

 Interest Rate Risk

   We may be exposed to market risk related to changes in interest rates. At
this time, we have not entered into any interest rate risk arrangements, and
while we may enter into interest rate risk hedging arrangements in the future,
we cannot assure you that we will be able to find commercially satisfactory
terms at that time. Our investment policy is to manage our investment portfolio
to preserve principal and liquidity while maximizing the return on the
investment portfolio through the full investment of available funds. We
diversify our marketable securities portfolio by investing in multiple types of
investment-grade securities. Our investment portfolio is primarily invested in
short-term securities with at least an investment grade rating to minimize
interest rate and credit risk as well as to provide for an immediate source of
funds. Although changes in interest rates may affect the fair value of the
investment portfolio and cause unrealized gains or losses, such gains or losses
would not be realized unless the investments are sold.

   Our Short-Term Investments.  As of March 31, 1999, we had unrestricted
short-term investments of $87.8 million and restricted short-term investments
of $28.2 million. These short-term investments are highly liquid investments
with original maturities at the date of purchase of between three and twelve
months and consist primarily of money market funds and high-grade securities
such as corporate notes, municipal securities and U.S. Treasury notes. We value
these investments at fair market value. These investments are subject to
interest rate risk and will fall in value if market interest rates increase. A
hypothetical increase in market interest rates by 10 percent from levels at
March 31, 1999 would cause the fair value of these short-term investments to
decline by an immaterial amount. We have the ability to hold these investments
until maturity, and therefore would not expect the value of these investments
to be affected to any significant degree by the effect of a sudden change in
market interest rates. Declines in interest rates over time will, however,
reduce our interest income, especially from money market funds whose rates
change on a daily basis. For more information, see Note 1 to the Financial
Statements.

                                       34
<PAGE>

   Our Long-Term Investments.  As of March 31, 1999, we maintained restricted
long-term investments totaling $16.2 million in connection with our 11 3/4%
senior notes due 2008. These long-term investments consist of high-grade
securities such as corporate notes, municipal securities and U.S. Treasury
notes, all of which are considered liquid and available for sale. Certain of
these securities will not be held to maturity. A hypothetical increase in
market interest rates by 10% from levels at March 31, 1999 would cause the fair
value of these securities to decline by an immaterial amount.

   Outstanding Debt.  As of March 31, 1999, the carrying value of our
outstanding senior notes was approximately $258.3 million at a fixed interest
rate of 11 3/4%. In certain circumstances, we may redeem this long-term debt.
Because the interest rates on these instruments are fixed, a hypothetical 10
percent decrease in interest rates would not have a material impact on our
financial condition, revenues or operations. Increases in interest rates could,
however, increase the interest expense associated with future borrowings, if
any. We do not hedge against interest rate increases.

 Equity Price Risk

   We do not own an equity stake or investment in another company or business
entity and therefore we do not believe that we have any direct equity price
risk. We do not hedge against equity price changes.

 Foreign Currency Exchange Rate Risk

   All of our revenues are realized in dollars and all of our revenues are from
customers in the United States. Therefore, we do not believe that we have any
significant direct foreign currency exchange rate risk. We do not hedge against
foreign currency exchange rate changes.

                                       35
<PAGE>

                                    BUSINESS

Our Company

   We are a facilities-based provider of advanced data communications services.
We market our services to Internet service providers, telecommunications
carriers and other businesses throughout the United States. We own and operate
a state-of-the-art, broadband access network that:

   .  consistently achieves among the highest performance ratings in the
      industry for network reliability, speed and throughput;

   .  currently handles more than 1.2 billion minutes of use per month;

   .  reaches businesses and households in every U.S. market with a population
      of at least 100,000 as well as several smaller markets; and

   .  employs asynchronous transfer mode switches at every point-of-presence.

   We recently agreed to acquire indefeasible rights to use four dark fiber
optic strands, with an option to use up to 12 additional fibers, in a
nationwide network that will cover approximately 15,000 route miles. The
combination of our existing broadband access network with our pending
acquisition of significant fiber optic facilities positions us to deliver a
broad array of end-to-end data communications services on our own network,
including:

   . dial and dedicated Internet access;

   . Internet access for higher bandwidth services, such as digital
     subscriber line (DSL) and cable modem;

   . value-added services such as virtual private networks and web hosting; and

   . bandwidth leasing and colocation services.

   As compared to router-based, data-oriented networks we believe our network
platform is more flexible for handling and deploying multiple and new services.
Our broadband access network can accept input from a wide range of devices
under all widely deployed protocols over all commercially deployed transmission
speeds. This enables quicker and more economical deployment of new service
offerings when combined with intelligent ATM processing residing solely at the
core sites.

   We currently provide nationwide Internet dial access and related services to
Prodigy, our primary customer and one of the largest Internet service providers
in the United States. We are also offering to businesses nationwide dial and
dedicated access for virtual private network services, and plan to begin
offering web hosting and other value-added services by year end 1999. We
believe that our relationship with Prodigy and our high network performance
have demonstrated our strength as a network operator and positioned us to
expand our customer base and service offerings. Leveraging our demonstrated
network capabilities, we have recently entered into significant new customer
relationships with Juno Online Services, Inc. and InfiNet. Juno, a leading
provider of Internet and e-mail services, currently has more than 200,000
subscribers for its Internet services launched in July 1998, and has created
more than 6.8 million free e-mail accounts since April 1996. InfiNet, a
consortium sponsored by Knight-Ridder, Gannett and Landmark Communications,
provides Internet access and web publishing solutions to nearly 100,000
subscribers nationwide.

Industry Overview

   Data communications services, including Internet and other network services,
is one of the fastest growing segments of the global telecommunications market
place. Businesses of all sizes are demanding advanced, highly reliable
solutions for their data transmission needs that enhance productivity, improve
efficiency and reduce operating expenses. As a result, businesses are seeking
communications providers that can securely and

                                       36
<PAGE>

efficiently connect geographically-dispersed locations uniformly and offer a
full range of value-added services that meet their data networking needs.
Businesses have begun to utilize value-added data communications services such
as web hosting, e-mail, file transfer and, more recently, intranet and extranet
services, e-mail outsourcing, e-mail broadcast and security. High speed data
communications access services link businesses or individual consumers to the
Internet's resources or to corporate intranets and extranets. Access services
include dial-up access for individuals and small businesses and the high-speed
dedicated access services used primarily by mid-sized and larger organizations.

   Businesses have also rapidly established corporate websites as a means to
expand customer reach and improve communications efficiency. Many businesses
are currently using the Internet as a lower cost alternative to building
expensive private data communications networks. For example, many corporations
are connecting their remote locations using intranets to enable efficient
communications with employees, customers and suppliers, reducing
telecommunications costs by using IP-based faxing and migrating legacy database
applications to run over IP-based networks.

 Market Size and Growth

   According to industry reports, data communications services is one of the
fastest growing segments of the global telecommunications market. For example,
according to Forrester Research:


   . business Internet access services are projected to grow at a compound
     annual growth rate of 71% from $2.8 billion in 1998 to $41.9 billion in
     2003;

   . consumer Internet access spending will increase from approximately $7
     billion in 1998 to approximately $20 billion in 2003;

   . web hosting and other value-added services are projected to grow at a
     compound annual growth rate of 37% from $0.9 billion in 1998 to $14.7
     billion in 2003; and

   . frame relay and ATM services are projected to grow from $4.7 billion in
     1998 to $12.3 billion in 2003.

Our Strategy

   Our mission is to strengthen our position as a leading facilities-based
provider of advanced data communications services. To achieve this objective,
our business strategy focuses on the following key principles:

 Expand Our Marketing Activities to Capitalize on Expected Demand

   We intend to capitalize on the expected growth in demand for network
services from businesses by aggressively marketing our services through a
variety of distribution channels. We believe that utilizing a range of
distribution channels will enable us to cost-effectively reach a broad base of
potential customers. We are significantly expanding our direct sales force to
attract Internet service providers, telecommunications carriers, value added
service providers and medium and large businesses. We are hiring highly
motivated personnel who have a background in or experience with the data
communications industry. In addition, we intend to use alternative distribution
channels, including agents, resellers and wholesalers, to gain access to a
substantially larger base of potential customers than we could otherwise
initially address through our direct sales force. Through the combination of a
direct sales force and alternative distribution channels, we will seek to
rapidly increase network traffic, market penetration and customer base.

 Broaden Our Portfolio of Service Offerings

   We are broadening our portfolio of value-added services to address business
customers who are increasingly outsourcing their critical applications and
integrating web-based services as part of their core data networking strategy.
We are positioned to offer a number of value-added services, including virtual
private

                                       37
<PAGE>

networks with a wide range of access options and speeds, web hosting and
colocation on our nationwide broadband access network. These services can be
bundled with Internet access services to provide complete, turnkey solutions.
We have begun construction on our first web hosting data center in Houston,
Texas and plan to build three additional data centers later this year. In
addition, the enhanced capacity resulting from our recent acquisition of dark
fiber capacity will enable us to offer a wider variety of data services on our
own network, including bandwidth leasing. We believe that providing value-added
services not only improves customer loyalty by making our services more
attractive as a package but also improves profitability, as value-added
services often provide higher margins.

 Exploit the Capabilities of Our Advanced Nationwide Communications Network

   We are completing deployment of our advanced, high-capacity, facilities-
based nationwide communications network. We believe that our ATM-to-the-
Edge(TM) network results in:

  .an easily scalable network architecture;

  .  the ability to efficiently add new services and integrate further
     technological innovations at a lower incremental investment than that
     required by other communications service providers with legacy systems
     that have separate networks for voice and data;

  .interoperability with other network platforms; and

  .improved network manageability.

   To enhance our broadband access network, we have agreed to acquire
indefeasible rights to use four dark fiber strands, with options to acquire
indefeasible rights to use an additional 12 fibers, in a state-of-the-art
nationwide fiber optic network currently under construction by Level 3. We
believe that the combination of this fiber optic backbone with our broadband
access network positions us to:

  .  deliver, on our own facilities, a broad array of end-to-end data
     communications services at the high level of quality and reliability
     increasingly demanded by customers;

  .  reduce significantly our network costs as a percentage of revenues as we
     substitute the acquired bandwidth for existing leased circuit
     arrangements with various telecommunications carriers;

  .  expand our service offerings by providing bandwidth leasing services on
     a stand alone basis or bundled with our other services;

  .  increase the reliability and redundancy of our network; and

  .increase the variety of service options and speeds available to customers.

 Build Strong Customer Loyalty Through Superior Customer Service

   We believe that superior customer service is a critical element in
attracting and retaining customers. Our broadband network is designed to
provide uniform quality and consistent service offerings at every point
nationwide. We have also made significant investments in personnel and our
scalable operating support systems. We believe that these systems give us a
competitive advantage relative to traditional network service providers because
we can better meet new customer demands and accommodate new service offerings.
We oversee our network operations from two existing network operating centers
24 hours a day, seven days a week. With our integrated web-based network
management tools we can monitor every POP in our network for quick and
efficient problem resolution from our network operations centers.

 Leverage Our Experienced Management Team

   Our senior management team has extensive experience in the data
communications industry. Our ten most senior executives have an average of over
15 years of industry experience. We believe that our ability to combine and
draw upon the collective talent and expertise of our senior managers gives us a
competitive

                                       38
<PAGE>

advantage in the effective and efficient execution of network deployment,
sales, provisioning, service installation, billing and collection, customer
service and delivering communications solutions to businesses. Our co-founders,
Mr. Li and Mr. Wilson, were both executives at WilTel and helped establish that
organization's ATM and frame relay marketing strategies. Mr. Li was part of the
leadership team that established Yurie Systems as a start-up company, took the
company public and built it into a successful organization that was sold to
Lucent Technology, Inc. for approximately $1 billion in 1998.

   Our senior management team also includes experienced marketing, finance and
operating personnel. David Boatner, our Executive Vice President and Chief
Marketing Officer, has built effective nationwide sales teams that target
business customers in the telecommunications industry for McLeodUSA, LDDS-
WorldCom, WilTel, Southwestern Bell and AT&T. Robert Fugate, our Chief
Financial Officer, was part of the team that successfully built SkyTel into a
leading provider of domestic and international wireless messaging services.
Larry Walberg, our Senior Vice President of Operations, has significant
management experience at both WilTel and MCI WorldCom, where he served as Vice
President, Global Data Network Operations. Todd Wilkens, our Senior Vice
President of Engineering, managed the deployment of a nationwide frame
relay/ATM network at GridNet, now a subsidiary of MCI WorldCom. Other key
executives have significant experience in the critical functions of network
operations, sales and marketing, customer and operations support systems,
finance and regulatory affairs.

 Increase and Optimize Network Utilization

   Given the nature of our network costs and the fact that our current network
utilization peaks in the evening hours to support Prodigy's residential
Internet subscribers, we seek to increase and optimize total network
utilization primarily by targeting providers of business services with daytime
intensive traffic as well as providers of consumer services with evening
intensive traffic. By pursuing this strategy, we believe that we will be able
to optimize network utilization throughout a 24-hour period by offering both
business-oriented services, such as dial virtual private networks and dedicated
and dial Internet access services, during the day, and consumer-oriented
services, such as Internet dial access services in the evening.

 Evaluate Strategic Alliances and Acquisitions That Increase Our Network
 Traffic

   We also intend to evaluate strategic alliances and acquisitions that could
provide additional traffic over our network. We are primarily focused on the
domestic services market and we believe that many opportunities for strategic
alliances and acquisitions will be available to us in the future. For example,
we may enter into joint marketing relationships with other companies that offer
complementary services to business customers. We may also acquire companies
that would drive increased traffic on our network without corresponding cost
increases.

   We also believe that the demand for Internet services outside the United
States will grow over the next few years. We intend to enter into international
alliances to originate and terminate international traffic on our network. We
will be targeting international Internet service providers and other carriers
for two types of opportunities--traffic termination in the United States and
data transport via the United States for termination in other countries. For
example, in cooperation with Telefonos de Mexico, Mexico's primary telephone
company and an affiliate of Prodigy, we intend to test connectivity between our
respective data networks. In addition, we have engaged European Marketing
Services, a marketing firm that successfully introduced Dell and other
technology firms to the European markets, to facilitate our own entry into the
European market.

Our Services

   We currently provide Internet dial access services and Internet dedicated
access services, as well as value-added services such as dial and dedicated
virtual private networks. We also have the ability to provide frame relay and
ATM virtual private network services and web hosting and will begin to market
these services by the end of this year. The addition of the fiber optic
backbone to our network and acquisition of dark fiber will also allow us to
offer bandwidth capacity and related colocation services as well.

                                       39
<PAGE>

 Internet Access Services

   Dial Access. Our Internet dial access services offer a cost effective
Internet solution with V.90 modem access to our advanced network via ordinary
telephone lines. Regional Internet service providers using our Internet dial
service can rapidly scale their service from regional or local coverage to
national coverage. National Internet service providers can expand their market
share by using our extensive local dial and 800 services to reach more
customers. We are primarily targeting Internet service providers with business
as well as residential customers to maximize traffic throughout our network.

   We currently provide Internet dial access services to Prodigy for its
subscribers. Leveraging on our demonstrated network capabilities, we have
recently entered into significant new customer relationships with Juno Online
Services and InfiNet.

   Dedicated Access. We offer high speed dedicated connectivity to the Internet
for both business users and Internet service providers. Our Internet dedicated
access services provide connectivity at access speeds ranging from 1.54 Mbps to
155 Mbps. We are targeting corporate users and carriers, including Internet
service providers, local exchange companies, regional long distance providers
and wireless providers as potential customers for this service.

   In the future, we believe that our fiber backbone positions us to support
Internet access for higher bandwidth services, such as digital subscriber line
(DSL) and cable modem. These high-speed access methods will enable new Internet
services such as video and high quality audio services.

 Value-Added Services

   We believe that business customers will continue to increase their use of
the Internet and other data services. Customers increasingly rely on a range of
value-added services, including virtual private networks and web hosting. We
will continue to develop new services to meet these business needs that
capitalize on our technologically advanced, high-speed broadband access network
and our fiber optic backbone.

   Virtual Private Network Services. Many companies today have private data
communication networks built on expensive leased lines designed to transfer
data between office locations. Private data networks are expensive to set up,
operate and maintain, requiring the use of leased lines and the purchase of
networking hardware and software. Our virtual private network services can
provide businesses with a lower-cost alternative to private data networks.

   Virtual private network services are valuable to business customers because
they:

  .eliminate the need to invest significant amounts in proprietary equipment
  and software;

  .securely and efficiently connect multiple, geographically dispersed
  locations;

  .provide remote access capabilities; and

  .allow businesses to add, delete or move company locations to meet changing
  needs.

   We have begun offering both dial and dedicated access for frame relay and
ATM virtual private network services to businesses, Internet service providers,
competitive local exchange carriers and others. We expect that the provision of
virtual private network services will be an important focus of our future
business.

   Web Hosting. We now offer, on a limited basis, web hosting services bundled
with our Internet access services that permit companies to market themselves
and their products on the Internet without having to invest in technology,
infrastructure and operations staff. We are developing for roll-out later this
year a web hosting service that will be marketed on a stand-alone basis or
bundled with our Internet access and virtual private network services. Web
hosting is an ideal solution for customers who want to "publish" web pages on
the

                                       40
<PAGE>

Internet without purchasing, configuring, maintaining and administering the
necessary sophisticated hardware and software. Due to economies of scale, we
can generally offer more sophisticated web hosting solutions than our customers
can provide for themselves. Our data centers will be located at selected core
POP sites and will make use of multiple high bandwidth connections to the
Internet. File structure directories, domain name registration and security
privileges can be set up for customers on our hosting servers, thus enabling
customers to remotely "publish" their content for distribution over the
Internet. In addition, we can provide network and systems administration and
maintenance, tape back-ups and security. In the future, we may also offer
applications hosting and other e-commerce services.

 Bandwidth Leasing

   With control over our fiber optic backbone network, we expect to offer
bandwidth leasing services that allow Internet service providers and other
business customers to transfer their traffic through our network. Bandwidth
leasing services will enable customers to reduce their data communications
expense by leasing network utilization from us in lieu of leasing point-to-
point circuits from other communications providers. We expect to be able to
offer high volume transmission capacity at a variety of speeds over our fiber
optic network. We may also target large capacity users who want to augment
their own networks or provide diverse routing alternatives in strategic areas
of their systems. Our potential customers for these services include
interexchange carriers, cable, data and transmission companies, the regional
Bell operating companies, Internet service providers, and local exchange
carriers. We expect to offer a variety of pricing and system options to meet
the specific needs of each customer. For instance, a customer may lease the
bandwidth capacity on a short or long term basis for extensive or minimal
coverage.

 Colocation

   We plan to house business-critical servers and other electrical, networking
and communications equipment in our secure network facilities on behalf of our
customers.The demand for these colocation services has increased as companies
expand into geographic areas in which they do not have appropriate space or
technical personnel to support their equipment and operations. Colocation
customers are typically larger enterprises employing more sophisticated
Internet hardware, software, and web servers, and have the expertise to
maintain their own web sites and related equipment. We plan to offer customers,
including Internet service providers, the opportunity to colocate their web-
server computers at our sites.

Our Network

   We own and operate a state-of-the-art, broadband access network that employs
ATM technology at every core, hub and remote POP site. When our broadband
access network is completed later this year, it will include approximately 370
active POPs, giving us a physical presence in all 50 states, and targeting over
90% of U.S. businesses and households with a local call.

   We recently agreed to acquire indefeasible rights to use four dark fiber
strands, with an option to acquire indefeasible rights to use an additional 12
fibers, in an approximately 15,000 route mile nationwide fiber optic network.
The combination of our existing broadband access network with our pending
acquisition of significant fiber optic facilities will allow us to deliver a
broad array of end-to-end data communications services on our own facilities at
the high level of quality, cost-effectiveness and reliability increasingly
demanded by customers. The increased bandwidth capacity will allow the network
to support advanced services such as DSL and video.

   Through its ATM-to-the-Edge(TM) architecture, our broadband access network
allows us to concurrently provide multiple services such as data, video and
voice to customers and to incorporate future technology changes at relatively
low incremental investments. As a result, we believe that we have created a
more efficient

                                       41
<PAGE>

network than our competitors, thereby reducing future operating costs and
improving reliability to the end user. Older networks were typically designed
to provide one type of service, such as voice or data, and are less efficient
at carrying other traffic. Unlike many networks which deploy ATM switching only
along the core sites in the backbone, our broadband access network deploys ATM
switching at every POP site--core, hub and remote. Each POP is supported by the
Lucent AC-120 switch which we believe provides significant quality of service
advantages over typical ATM switches. Our management believes that our network
contains more ATM-based switches than any other commercial network.

   Our network was designed to meet the following strategic goals:

   . provide uniform service nationwide that is reliable, fast, efficient and
     easy to access;

   . build high capacity to move data more quickly, more efficiently and at
     greater traffic volumes;

   . provide better quality service than our competitors at a lower cost;

   . provide broad coverage to points not served by other networks;

   . use the industry's best suppliers for network components; and

   . build redundancy into the network for better reliability.

 Network Performance

   We believe that our network delivers the high level of quality increasingly
demanded by customers. We have consistently achieved among the highest
performance ratings in the industry for network reliability, speed and
throughput. Inverse Technology measures and reports on nine network performance
parameters of Internet service providers. Overall, the ratings for Prodigy
exceeded or equaled the industry average in at least six of the nine
parameters, including evening call success rate, for each of the last five
months. We believe evening call success rate is the most important network
measure in terms of customer satisfaction.

<TABLE>
<CAPTION>
                                                             Inverse 1999 Rating
                                                             -----------------------
Selected Performance Attributes                              Jan  Feb  Mar  Apr  May
- -------------------------------                              ---  ---  ---  ---  ---
<S>                                                          <C>  <C>  <C>  <C>  <C>
Evening-Hour Call Success...................................   B    A+   A+   A+   A+
Business-Hour Call Success..................................   A    A+   A    A    A+
24-Hour Call Success........................................   A    A+   A    A    A+
Modem Connect Speed.........................................   A+   A+   A+   A+   A+
Average Web Throughput......................................   A+   A+   A+   A+   A+
</TABLE>

   Inverse Technology rates the network performance of all major nationwide
Internet service providers by making more than 250,000 test calls per month.
The national providers compared in the Inverse rating are: AOL, AT&T, Cable &
Wireless, CompuServe, Earthlink, GTE, IBM, Microsoft Network, Mindspring,
NETCOM, Prodigy (Splitrock) and UUNET. In addition to the performance
attributes in the table above, Inverse Technology also rates average time to
login, average domain name system lookup time, average download time, and
average total web failures/timeouts. In our view, however, these attributes
reflect the performance of the Internet service provider and do not reflect the
performance of the underlying network. You should not place undue reliance on
Inverse Technology's reports as a measure of network performance because these
reports do not measure all factors that may affect the quality of our services
and are based on a random sampling of our network's POPs.

                                       42
<PAGE>

 Network Infrastructure

   We believe that we have provided for future growth by ensuring that our
network is:

  .  scalable;

  .  flexible;

  .  fault tolerant;

  .  based on open standards and interoperable; and

  .  manageable from remote locations.

   Scalable. Our flexible, multi-layer network architecture utilizes a high-
speed switching fabric that enables us to increase the number of POPs and the
number of users served in an incremental manner that matches investment with
demand. Our network's scalability extends beyond the currently installed base
of POPs to allow for growth without fundamental design changes or loss of
service quality.

   Flexible. We believe that our network will enable us to adapt to new
services and manage network resources according to each service's needs,
permitting us to efficiently offer data, video and voice services concurrently.

   Fault Tolerant. Redundancy and adaptive technology in our network reduces
the impact of isolated failures. For example, all core sites are
interconnected, allowing traffic to be transferred among sites in case of a
failure. In addition, key switches, routers and workstations are configured to
search for alternate paths if an individual component or transmission line
fails. We also have an uninterruptible power supply at each POP, limiting the
impact of local power outages on our network.

   Open Standards and Interoperable. Our entire network supports various
protocols, including IP, ATM, frame relay, ISDN, video and SS7. This
architecture allows us to interconnect freely with other carrier networks or
customer networks. As a result, we can extend services of another carrier
outside of that carrier's own region. In addition, potential virtual private
network clients that use standards-based protocols can easily access our
network without having to purchase special equipment that would otherwise be
necessary with a proprietary network.

   Manageable. From our network operations centers, we are able to monitor our
network remotely, perform network diagnostics and equipment surveillance, and
inform customers when a network problem occurs. Our network operations centers
are open 24-hours a day, seven days a week. As a result of our network
architecture, these tasks may be performed remotely regardless of POP location
or network status. This capability allows us to control costs associated with
on-site network configuration and repair.

 Broadband Access Network

   Communication service providers have typically provided services using two
predominant types of infrastructure, one geared towards voice service and the
other designed to optimize data communications. Practical considerations and
equipment constraints have led to the development of these two types of
distinct network infrastructures. Voice telecommunications service providers
historically have needed to provide a high level of reliability and depend upon
equipment reliability, network architecture design, network management and
maintenance to meet their service needs and reliability constraints. Data
telecommunications service providers, on the other hand, benefit from highly
intelligent terminals at the end-user that usually can determine if a
transmission error has occurred and automatically re-transmit data and even
reconnect a session if necessary. With the help of intelligent terminals, data
communication networks run complex routing algorithms that allow them to locate
and find the best route to transmit data. While providing a high degree of
flexibility, data communication service networks often have unpredictable
performance.

                                       43
<PAGE>

  In order to create a network which efficiently supplies multiple types of
services, such as data, video and voice, a company must make the platform
reliable enough to support voice, yet flexible enough to support data. To date,
companies successfully providing voice and data concurrently have partitioned
their network's bandwidth to support two separate service infrastructures. Part
of their bandwidth is used for voice, employing voice telecommunications
service switches, and the other part is used for data, employing standard data
telecommunication equipment in the network.

  Separating bandwidth use has been a practical way for older networks to
provide multiple services. As long as data represents a small portion of
network traffic, this partitioning remains practical. However, it is expected
that the rapid growth of data will soon cause data to consume more bandwidth
than voice. When that occurs, partitioning will make network bandwidth
utilization very difficult to optimize while creating significant management
complexity.

  Our network was designed to address constraints facing older networks by not
requiring the separation of bandwidth for different types of services. In the
process of designing our network we sought to create a network infrastructure
which could:

  .  efficiently offer data, video, and voice services concurrently;

  .  reduce operating costs by more efficient utilization of network resources;
  and

  .  provide high quality service for all services offered on the network.

  We believe that three features distinguish our network from other data
communications networks. First, we use the Lucent AC-120 switch which supports
multiple services at every POP of the network. We believe that this
"intelligent" ATM switch differs from typical ATM backbone switch engines
because it supports many access protocols to the network whereby an array of
data, video and voice services can be sent and/or received, including IP, frame
relay, ATM, Ethernet, T-1, T-3, OC-3 and many other digital as well as analog
interfaces. Also, the Lucent AC-120 is scalable with up to 14 interface module
slots designed to house interface cards supporting these various services. The
Lucent AC-120 translates these native service protocols into standard ATM
format and transports any service as an ATM connection. In addition, the Lucent
AC-120 implements a patented queuing algorithm that eliminates the need for
bandwidth allocation to different kinds of services and simultaneously supports
data, video and voice services on a unified platform without loss of quality of
service even during periods of high network utilization.

  Second, to manage the large number of ATM switches in our network, we
organized the network architecture into classes and regions. This architecture
allows us to introduce new services more quickly because all new services can be
layered on the network's ATM switching fabric without alterations being made to
the fabric itself. A new network service has two components, the protocol that
defines the format of the information payload and the signaling or routing
instructions required to direct the information to its destination in the
network. Our network ATM switching platform streamlines the signaling process
because routing information is concentrated in a limited number of central sites
in the network known as core sites rather than having signaling or routing
information interpreted by switches or routers at every point of the network as
occurs, for example, in a traditional IP-based network. Therefore, to introduce
a new service, we only need to deploy the proper signaling or routing processors
at a few core sites instead of hundreds of switch or router sites distributed
around the network. This reduced number of routing decisions also permits better
management and typically faster throughput than other networks.

  Third, most modern networks achieve transmission efficiencies by deploying
ATM switching engines in three to 20 access sites only in the core backbone of
their network. In contrast, ATM switches are located in all POPs throughout the
network. At the completion of our network construction and installation, we
expect to have approximately 370 ATM switches deployed in our network. The ATM-
to-the-Edge(TM) network forms the basic platform for us to offer multiple
services to all users on the network.


                                       44
<PAGE>

 Network Organization

   Our network is organized into three classes of access sites: core sites, hub
sites and remote sites. The architecture partitions the entire network into 21
regions, with a core site in each region. The core site is generally located in
the city with the most traffic in that region. Users access the network within
a region by connecting to either a core, a hub or a remote site. The core sites
form the backbone of the network, with the hub and remote access sites
extending the reach of the backbone.

   Our 21 core sites are logically and fully meshed to allow traffic to pass
directly from any one region to any other region. The core sites are
interconnected by standard transmission links such as DS-3 or OC-3. We can
purchase bandwidth on an actual need basis between each site and upgrade these
links as the bandwidth demand increases because the Lucent AC-120 conforms to
standard transmission specifications.

   In addition, each core site is equipped with special protocol processors to
enable our network to accommodate demand for a wide variety of services. IP
protocol, for instance is supported by routers at each core site as compared to
other networks that must install routers at each POP. As a result of our
design, each of our routers is directly connected to every other router in the
network and can forward packets from region to region efficiently via simple
routing tables.

   Hub sites service the major cities within a region and connect to core sites
over a DS-3 line or multiple T-1 lines depending on the traffic requirements.
Hub sites can be connected redundantly to other hub sites or to core sites to
increase network reliability. For IP traffic, all packets from a hub site are
forwarded directly to the region's core site, and then forwarded to their
destination region by the core site router.

   Our network has a large number of remote sites to reach the smaller cities
within a region. These sites allow user access to the same services as
elsewhere in the network. Remote access sites connect to a hub site, usually
with a T-1 line. The remote sites can also be protected from transmission
failures by being connected redundantly to other access sites in the region.

 Fiber Optic Backbone

   As part of our ongoing efforts to further expand and enhance our network, we
recently entered into an agreement to acquire long-term indefeasible rights to
use four dark fiber strands, with an option to use up to 12 additional fibers,
in the nationwide fiber optic network currently under construction by Level 3
Communications.

   Fiber optic technology uses light to transport information from one point to
another. Fiber optic strands are thin filaments of glass through which light
beams are transmitted over long distances carrying large amounts of data.
Modulating light on thin strands of glass produces major benefits including
high bandwidth, relatively low cost, low power consumption, small space needs
and total insensitivity to electromagnetic interference.

   The optical fiber strands that will comprise our fiber backbone network are
designed to accommodate dense wave division multiplexing transmission
technology. As a result, we can deploy equipment which transmits signals on 32
or more individual wavelengths of light per strand. This capability will
significantly increase the potential capacity of our fiber backbone relative to
older networks which generally use fiber optic strands that transmit fewer
wavelengths per strand. In addition, we believe that the installation of newer
optical fibers will allow a combination of greater wavelengths of light per
strand, higher digital transmission speeds, and greater spacing of network
electronics.

 Network Management and Customer Service

   We believe that superior customer service is a critical element in
attracting and retaining new customers and expanding value added services to
existing customers. In particular, we believe that it is critical to maintain
two geographically dispersed network operations centers, each of which enables
us to monitor our entire network and provide rapid problem resolution. We have
established two 24-hours per day, seven days per week network operations center
facilities located in The Woodlands, Texas and Yorktown Heights, New York. Each
of these network operations centers permits us to manage traffic, monitor
system status and remotely implement solutions to system interruptions.

                                       45
<PAGE>

   In the first half of 1998, we implemented a number of new systems and
procedures to provide superior customer service. We have installed a leading
customer support trouble ticketing and workflow management system to track,
route and report on customer service issues. We also implemented new industry-
standard billing systems in late 1998. We expect to offer wholesale customers a
system that generates invoices tailored to the client's service mix and use a
second billing system for retail customers that authenticates and bills through
credit cards. To support anticipated growth in customers on our network, we
have established a customer call center to provide customer support 24 hours
per day, seven days a week.

   Through the development of scalable operating support systems, we believe
that we have the opportunity to establish a competitive advantage relative to
traditional network service providers. Traditional network service providers
typically operate extensive legacy operating support systems with
compartmentalized architectures that limit their ability to scale rapidly and
introduce enhanced services and features. In connection with the expansion of
our network, we are creating operating support systems with an architecture
designed to maximize both reliability and scalability. Furthermore, in
establishing our operating support systems, we have attempted to develop
company-wide standardization of hardware, software, database platforms and
problem solving in order to maximize system automation and minimize employee
manual processing. Operating support systems are, or will be, distributed
throughout our network, which improves network performance, recovery and
reliability, while also providing real-time capture of statistical and
accounting data. We utilize, when available, industry standard software systems
developed and maintained by third party vendors but customized for our specific
needs.

   We believe that an up-to-date management platform is critical for us to be
competitive and provide customers with quality services. We have put in place a
modern management platform to manage our extensive network. The new management
platform performs operations, administration and management tasks. We have
customized most of these platforms to ensure maximum network flexibility and
efficiency.

 Peering and Interconnection

   Peering and interconnection agreements with other carriers enable us to
exchange traffic destined for other networks and allow external traffic access
to our network. With Prodigy as a customer, we carry a significant amount of
Internet traffic. Currently, we have direct connection with all major carriers,
including Cable & Wireless, MCI WorldCom, PSINet, Sprint, UUNET and others, and
we are currently in discussions with other Internet service providers in order
to broaden our interconnection capabilities. We interconnect with other
networks from a core site through an industry standard Cisco router, which
promotes proper protocol exchange between us and other Internet service
providers.

 Transmission Services

   We lease long distance connections of various bandwidths to connect sites in
our network. The choice of long distance carriers is based on their network
reliability, bandwidth availability, responsiveness and pricing. We currently
lease a majority of our long distance connections from MCI WorldCom and
periodically review the capability and costs of these services by other
suppliers, such as Sprint and Qwest. Prior to the completion of our fiber
network, we expect to receive interim backbone transmission services from Level
3 beginning in the third quarter of 1999. As these services become available,
they will replace backbone transmission services we currently receive from
third parties. As segments of our fiber optic backbone network are constructed,
we will use this bandwidth in lieu of existing leased circuit arrangements.

   We lease local connections (DS-1, T-1 or ISDN PRI) to access the end-user.
The local service providers are selected based on their reliability, service
availability, responsiveness, pricing and minimum switch congestion during busy
hours. Based on these criteria, we have existing relationships with many
competitive local exchange carriers and all major incumbent local exchange
carriers in the country.

Sales and Marketing

   We are deploying multiple distribution sales channels to rapidly increase
our market penetration and customer base. The primary sales distribution
channel will be a direct sales force. Additional channels will include agents,
wholesalers and resellers.

                                       46
<PAGE>

   Our focus on multiple, leading-edge offerings makes it essential to create a
sophisticated sales organization. We began developing our direct sales force in
the first quarter of 1999 and are actively recruiting highly experienced data
communications sales professionals. This sales force will have a nationwide
presence, and will market our services directly to Internet service providers,
telecommunications carriers, value-added service providers, and medium and
large businesses. To support our direct sales force, we are developing web-
based tools, such as sales automation and sales tracking systems, that will
integrate pricing, order management, provisioning and billing systems.
Additionally, the salesforce will be equipped with customer-tailored marketing
material.

   We also intend to utilize alternate distribution channels, which include
agents, resellers and wholesalers, to market our products and services to
medium and small businesses. As independent entities, agents sell our services
under the Splitrock brand name to end-users in exchange for revenue based
commissions. We intend to identify agents that generally focus on specific
market segments (such as medium and small businesses) and have existing
customer bases. Resellers are independent companies that would purchase our
services and then "repackage" under their own brand name these services for
sale to their customers. Finally, wholesalers are independent companies that
will purchase network service capabilities in large quantities from us in order
to market their own services under a brand name other than Splitrock. These
alternative channels are expected to optimize revenue growth and market
penetration.


   We are creating a marketing infrastructure with three primary areas of
responsibility: marketing communications, marketing management and product
development.

     Marketing communications builds Splitrock's image and provides
  communications interface to customers on services. Marketing communications
  will also promote Splitrock's services at industry conferences, trade shows
  and other events.

     Marketing management develops service literature, price positioning,
  sales support materials, service revenue forecasts, competitive industry
  and service analysis for our suite of service offerings.

     Product development will work with internal organizations such as
  information technology, engineering, operations and billing to develop and
  enhance our services.

Relationship with Level 3 Communications

   On April 26, 1999, we entered into a Cost Sharing National IRU Agreement
with Level 3 Communications, LLC, a subsidiary of Level 3 Communications, Inc.
Under this agreement, Level 3 has granted to us indefeasible rights to use four
dark fibers, with an option to use up to 12 additional fibers, in the
nationwide multiconduit fiber optic communications system currently under
construction by Level 3. The fiber will be delivered in segments that are
expected to become available from the end of 1999 through the first quarter of
2001. When completed, the fiber network will cover approximately 15,000 route
miles. If Level 3 expands its nationwide fiber optic network by adding
additional routes or otherwise enhances its network, Level 3 has agreed to give
us the opportunity to participate in that expansion or enhancement, subject to
Level 3's own business needs and subject to our agreeing on the allocation of
costs in the expansion or enhancement. Our agreement with Level 3 relates to
dark fiber only and does not include the electronic equipment necessary to
allow the fiber to transmit communications.

   Under our agreement, we have made a down payment of $11.2 million to Level 3
and we are required to make additional payments as we accept delivery of
segments of the dark fiber. The total amount we will be required to pay Level 3
is dependent on the number of fibers we acquire and the number of actual route
miles. In addition to IRU payments, we are required to make payments to Level 3
for facilities, maintenance and utilities charges.

                                       47
<PAGE>

   We anticipate that the acquisition of the right to use the four dark fiber
strands and the related electronics equipment, will require capital
expenditures of approximately $34 million, $89 million, and $27 million in
1999, 2000 and 2001, respectively.

   We have agreed that prior to the fourth anniversary of the agreement, we
will not grant any dark fiber IRU or assign or transfer any IRU or other
similar right or interest in any IRU to anyone other than an affiliate of ours.
However, the agreement allows us to sell or lease capacity over the fibers.

   Our agreement with Level 3 has an initial term of 20 years and may be
extended. If we default in any payments due to Level 3 under the agreement,
Level 3 may terminate the agreement, provided that Level 3 may not terminate
the agreement or our rights to use fiber in segments for which we have paid in
full. We have the right to terminate the agreement prior to October 31, 1999,
under certain circumstances, but we would forfeit up to 80% of our down payment
if we exercise that right.

   Level 3 has agreed to provide interim backbone transmission services at
capacities ranging from DS-3 to OC-48 for a monthly charge per DS-0 mile,
subject to an aggregate monthly minimum of $0.5 million. We expect to receive
these services beginning in the third quarter of 1999. As these services become
available, they will replace backbone transmission services we currently
receive from other third parties.

   Under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, we may be
required to notify the Federal Trade Commission of the transactions
contemplated by our agreement with Level 3. If this notification is required,
we will not be able to consummate the transactions contemplated by the Level 3
agreement until the requirements of the Hart-Scott-Rodino Act have been
satisfied and any applicable waiting period has expired to terminated.

Suppliers

   We depend on third parties for key components of our network infrastructure,
including leased lines, transmission services and networking equipment, such as
routers, switches and modems. The quantities and quality of such networking
equipment that we require are available only from limited sources. We currently
utilize Lucent for ATM switching products, Bay Networks for our Internet dial
access platform, Cisco for routers and Sun Microsystems and Compaq for servers.
We also depend upon a variety of local exchange carriers and interexchange
carriers to provide telecommunication services, including leased line and
colocation facilities. For long distance connections and backbone long distance
transmission facilities, we currently use MCI WorldCom. In addition, we obtain
bandwidth capacity under leased line connection agreements with local exchange
carriers, including regional Bell operating companies. We also obtain
telecommunications services and lease physical space under local
access/colocation agreements with various competitive local exchange carriers.
We continue to monitor our needs for greater bandwidth and may enter into
agreements to enlarge our bandwidth capability.

   We have entered into an agreement with IBM to use the IBM network to cover
market areas that are not served by our network or the Prodigy network. Under
this agreement, either party may terminate its obligations under the contract
for the remaining POP sites, upon 60 days prior notice. During March 1999, we
entered into an agreement with Lucent to provide us with maintenance on our
broadband access network in order to maintain the quality and reliability of
our network performance. Prior to entering into this maintenance arrangement
with Lucent, we had performed our own maintenance of equipment and have relied
on warranties from our vendors.

   We rely upon third parties to provide equipment and services to assist in
the construction and installation of our broadband access network. As of April
30, 1999, we had 212 operational POPs and we expect to have approximately 370
operational POPs when our construction is completed later this year.


                                       48
<PAGE>

Competition

   The data communications service industry is highly competitive. We expect
that competition will continue to intensify as customers seek additional
capacity to satisfy the continued growth of the Internet. In addition, numerous
competitors, including major telecommunications carriers such as AT&T, MCI
WorldCom, Sprint and Cable & Wireless, are rapidly expanding their data network
capabilities. We believe that the primary competitive factors for the provision
of data network services are quality of service, network coverage, reliability,
price, and service innovation.

   Our current and prospective competitors generally may be divided into three
groups:

  .  companies that provide access services to Internet service providers
     with both residential and small business customers, including UUNET
     Technologies, Verio, Concentric Network, PSINet, and Netcom On-Line
     Communications Services;

  .  companies that provide access, virtual private network and other value-
     added services to medium and large businesses, including Concentric,
     UUNET, GTE Internetworking, and DIGEX, as well as most major long
     distance telephone companies; and

  .  companies with high-speed networks that provide bandwidth capacity and
     other network services, including IXC Communications, Qwest and Level 3.

 Internet Service Providers

   According to International Data Corporation, there are over 4,000 Internet
service providers in the United States, consisting of national, regional and
local providers. We intend to market Internet dial access services to these
Internet service providers. Our competitors in this market will be other
companies that provide Internet access service to Internet service providers as
well as Internet service providers which possess backbone networks enabling
them to provide capacity to other Internet service providers. While we believe
that our status as an independent service provider distinguishes us from many
of these competitors, some of these competitors have significantly greater
market presence, brand recognition and financial, technical and personnel
resources than we do.

 Corporate Internet Access and Virtual Private Networks

   In the corporate Internet access and virtual private network markets, the
competitors include Internet service providers as well as traditional
telecommunications carriers. Many of these competitors, in addition to their
substantially greater market presence and financial, technical and personnel
resources, also have large existing commercial customer bases. Furthermore,
many of these competitors have the ability to bundle Internet dial access and
virtual private network services with other services such as web hosting or
long distance services. This bundling of services may have a material adverse
effect on our ability to compete effectively and thus could have an adverse
effect on our business, financial condition and results of operations.

 Other Network Services

   We believe that significant new competitors will enter the data network
services market. Other companies are in the process of building or expanding
networks that will have the ability to provide services comparable to ours. In
addition, many of our competitors have the financial and operational resources
to construct networks similar to our own. For example, Sprint is in the process
of designing a network which will contain ATM switches at every core, hub and
remote site. We cannot assure you that we will be able to compete effectively
with these companies. The market for the colocation of web-servers is extremely
competitive. In this market, we would compete with Internet service providers
and network providers as well as others, including inter exchange carriers,
companies that provide only web hosting and IP colocation services and a number
of companies in the computer industry.


                                       49
<PAGE>

   There are currently three principal facilities-based long distance fiber
optic networks, as well as numerous incumbent local exchange carrier and
competitive local exchange carrier networks. Others, including Qwest, IXC and
Williams, are building additional networks that employ advanced technology
similar to that of the Level 3 network and offer significantly more capacity to
the marketplace. The additional capacity that is expected to become available
in the next several years may cause significant decreases in the prices for
services. Our ability to compete effectively in this market will depend upon
our ability to maintain high quality services at prices equal to or below those
charged by our competitors. Interexchange carriers and competitive local
exchange carriers with excess fiber optic strands may be competitors in the
dark fiber business.

   Recent reforms in the federal regulation of the telecommunications industry
have also created greater opportunities for local exchange carriers, including
the regional Bell operating companies, to enter the Internet network services
market and therefore compete with us. This increased competition could have a
material adverse effect on our business. We believe that there is a trend
toward horizontal integration through acquisitions of, joint ventures with, and
the wholesale purchase of connectivity from, Internet service providers. The
WorldCom/MFS/UUNET/MCI consolidation, the Netcom/ICG Communications merger, the
Intermedia/DIGEX merger and GTE's acquisition of BBN are indicative of this
trend. These consolidations may increase competition.

Regulation

 Overview

   Although we are not currently subject to direct regulation by the FCC, the
telecommunications industry is highly regulated. As a result, changes in the
regulatory environment relating to the Internet and telecommunications
services, including regulatory changes which directly or indirectly affect
telecommunications costs or increase the likelihood or scope of competition
from regional Bell operating companies or other telecommunication companies,
could have a material adverse effect on our financial position or results of
operations.

   Various existing federal and state regulations are currently the subject of
judicial proceedings, legislative hearings and administrative proposals which
could change, in varying degrees, the manner in which the industry operates. We
cannot predict the outcome of these proceedings, or the impact they may have on
the telecommunications or Internet services industries generally, or on us
particularly. In addition, over the past several years both the federal and
state governments have adopted new legislation and rules profoundly affecting
the telecommunications and Internet services industries. We cannot assure you
that the changes in current legislation or new legislation, and the regulations
adopted by the FCC or state regulators pursuant to that legislation, would not
have a material adverse impact on our business.

 Regulation of Internet Communications

   In 1980, the FCC created a distinction between "basic" services, which it
regulated as common carrier services, and "enhanced services," which it
deregulated. The FCC exempted enhanced service providers from federal
regulations governing common carriers, including the obligation to pay access
charges and contribute to universal services.

   The Federal Telecommunications Act of 1996 established a similar distinction
between "telecommunications services" and "information services," but a
combination of changing technology and other provisions of the Federal
Telecommunications Act have made it increasingly difficult to discern the
boundary between unregulated and regulated services. The act directs the FCC to
adopt regulations requiring all telecommunications service providers to
contribute to the federal Universal Service Fund. When fully implemented, that
fund will be greatly enlarged. This distinction greatly magnifies the
significance of the boundary between regulated and unregulated services.

                                       50
<PAGE>

   Since the Federal Telecommunications Act was adopted, several companies have
begun providing voice telephony services over Internet-style packet-switched
networks, and traditional long distance telephone companies have announced
plans to migrate their services to packet-switched networks. As a consequence,
the regulatory status of communications services over Internet-style packet-
switched networks is presently uncertain. In an April 10, 1998 Report to
Congress regarding Universal Service, the FCC concluded that the provision of
underlying transmission capacity to Internet service providers constitutes
"telecommunications" under the Federal Telecommunications Act. The FCC has also
indicated in the report that it would consider, in an upcoming proceeding,
issues related to whether Internet service providers that own transmission
facilities and engage in data transport over those facilities in order to
provide information services are providing telecommunications to themselves,
and therefore ought to be required to contribute to universal service. While
the Report containing this conclusion does not have the force of law, it
provides a strong indication of regulatory action that may be taken by the FCC
in the future. A finding by the FCC that Internet service providers and
carriers providing service to Internet service providers must make universal
service contributions could increase our cost of doing business and have a
material adverse effect on our business.

   On April 5, 1999, US WEST, Inc. filed a petition asking the FCC to rule that
providers of certain forms of Internet Protocol ("IP") telephony services must
pay the same charges that traditional interexchange carriers pay for access to
local telephone exchanges. If US WEST's request is granted, we could be
subjected to regulation that would have the practical effect of forcing us to
differentiate data transmission provided in support of black phone to black
phone IP telephony from data transmission provided in support of other
services. This type of regulation could impose substantial operational
inefficiencies and attendant costs upon us depending upon the method of
implementation required. We cannot predict how or when the FCC will respond to
the US WEST petition.

 We operate as an Information Services Provider

   We operate as an unregulated provider of information services, as that term
is defined in the Federal Telecommunications Act, and as an enhanced service
provider, as that term is defined in FCC rules. Because the regulatory
boundaries in this area are unclear and subject to dispute, however, the FCC
could seek to characterize some or all of our services as "telecommunications
services." If that happens, we will be required to contribute directly to
universal service.

   Our status as a reseller of underlying telecommunications services provided
by others has reinforced our status as an unregulated information service
provider. A longstanding FCC policy holds that, when a reseller enhances some
of the transmission capacity that it obtains from an unaffiliated facilities-
based common carrier by modifying or adding content to transmitted messages,
the entire package of resold services will be classified as an unregulated
enhanced service, even if much of the resold transmission capacity is not being
modified by the reseller. By contrast, the FCC has required some enhanced
service providers that use their own facilities to segregate those facilities
and subscribe to them as regulated common carrier offerings. To the extent that
we begin to provide our own transmission facilities, parts of our company could
thus become exposed to common carrier regulation.

   Recently, we obtained rights to use several strands of unlit fiber, referred
to as "dark fiber," on another company's nationwide fiber network. The FCC and
at least one federal district court have taken the position that provision of
dark fiber is a form of "wire communications," not a sale of facilities. On
that basis, we believe that our acquisition of previously installed dark fiber
capacity does not transform us into a facilities-based provider of
telecommunications, and that we remain a reseller and provider of unregulated,
enhanced services. The treatment of dark fiber under these circumstances is an
unsettled area of the law, however, and we cannot predict with certainty
whether the FCC, or state regulatory commissions, will regulate this kind of
service.

                                       51
<PAGE>

   Under current FCC policy, enhanced service providers are exempted from
having to pay access charges to local telephone companies. Without this
exemption, the local telephone companies could charge enhanced service
providers for connecting the customer to the enhanced service provider.
Recently, the FCC has determined that both dedicated access and dial-up calls
from a customer to an Internet service provider are interstate, not local,
calls, and, therefore, are subject to the FCC's jurisdiction. The FCC
determined that, for the time being, it will allow states to continue tariffing
dial-up Internet access as a local business line service. However, it did not
require states to do so. If the access charge exemption for enhanced service
providers is eliminated, our costs of providing service may increase
substantially, which could have a detrimental effect on our business.

 Universal Service Proceeding

   If we maintain our current unregulated status, we may contribute indirectly
to universal service to the extent that we are billed by telecommunications
providers for the underlying service. Beginning on July 1, 1999, the federal
universal service program is scheduled to provide subsidy support for service
to high-cost areas served by so-called "non-rural" incumbent local exchange
carriers. We cannot predict the potential impact of these universal service
funding reforms on the rates that we are charged for the underlying
telecommunications services we receive from our telecommunications providers.

 Regulatory Safeguards Affecting Underlying Service Providers

   We are heavily dependent upon telecommunications carriers for the
transmission capacity that underlies our enhanced network. Some of these
carriers are considered dominant in their geographic markets and may compete
with us in providing enhanced services. This creates an incentive and potential
means for those carriers to discriminate against us. At present, the regional
Bell operating companies are allowed to provide information services within
local access and transport areas (LATAs) but they are restricted from providing
information services on an inter-LATA basis.

   Under Section 271 of the Federal Telecommunications Act, the regional Bell
operating companies will be allowed to provide inter-LATA service, including
inter-LATA information services, when the FCC determines that they satisfy a
regulatory checklist of local competition requirements. No regional Bell
operating company has yet obtained a determination by the FCC that it has
satisfied the checklist of local competition requirements, but it is likely
that such determinations will eventually be issued. We cannot assure you that
we will be able to compete effectively with the regional Bell operating
companies once they are permitted to provide inter-LATA services.

 Potential Liability of Internet Service Providers

   Because we do not hold ourselves out as editing or otherwise controlling the
content of communications that traverse our network, we are generally
unaffected by government content regulation. However, the law in the United
States relating to the liability of Internet service providers and providers of
transmission capacity for information carried on, disseminated through or
hosted on their systems is currently unsettled. Congress and several states
have enacted or are considering measures that would, under some circumstances,
impose civil and criminal liability upon Internet service providers, or
providers of transmission capacity to Internet service providers, for the
transmission or dissemination of information and materials. The imposition of
this type of liability, if upheld by the courts, may require us to implement
measures to reduce our exposure to this liability, which may require us to
expend substantial resources and could affect the demand for our services.

Trademarks and Trade Names

   We filed federal trademark applications for the marks "Splitrock" and "A
Carrier of Wisdom" on September 18, 1997, and "splitrock.net" on March 6, 1998.
We also filed separate federal trademark applications for logos on the above
dates, for the Splitrock with triangle design on June 16, 1998, for the mark
"splitrock.com" on July 27, 1998, and for the mark "ATM-to-the-Edge" in March,
1999. We have also filed

                                       52
<PAGE>

trademark applications for the marks "Splitrock", "A Carrier of Wisdom" and the
Splitrock with triangle design in numerous foreign countries. These
applications are pending and we cannot assure you that they will be granted.
"Splitrock Services, Inc." is a trade name of our company.

Insurance

   We have insurance coverage that we believe to be adequate for the risks of
our business. We carry property, general liability and directors and officers
liability insurance. In addition, we have an umbrella policy applicable to
general liability, auto liability, and employer's liability. Our insurance
coverage may not be adequate or available to compensate us for all losses that
may occur. The occurrence of a significant loss not fully covered by insurance
could have a material adverse effect on our company.

Employees

   As of April 30, 1999, we had 229 full-time employees and 36 independent
contract workers. None of our employees is represented by a union, and we have
experienced no strikes or work stoppages. Our management believes that we have
good relations with our employees.

Properties

   We are headquartered in The Woodlands, Texas in a leased facility consisting
of approximately 25,000 square feet. This facility houses our principal
executive and administrative offices as well as one of our network operations
centers. The lease on this facility expires in 2003. In March 1999, we entered
into a long-term lease agreement for approximately 69,000 square feet in The
Woodlands, Texas and expect the new facility will be ready for occupancy not
later than August 1999. The new facility will become our headquarters, and the
existing space will continue to be utilized as a network operations center and
customer care center.

   We also sublease from Prodigy a facility of approximately 12,500 square feet
in Yorktown Heights, New York for our Yorktown Heights office and network
operations center. This lease expires on February 28, 2001 but is subject to
early termination on December 31, 1999 upon three months written notice. We
intend to exercise the early termination provision, and currently plan to move
our Yorktown Heights, New York facility to another location in the New York
metropolitan area.

   In connection with our network operations, we lease commercial space or have
colocation agreements for our installed communications equipment throughout the
United States.

   We believe that our facilities are adequate for our present purposes and
that suitable additional facilities will be available as needed.

Legal Proceedings

   We are not currently a party to any material legal proceedings.

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<PAGE>

                                   MANAGEMENT

Directors and Executive Officers

   Our directors and executive officers are as follows:

<TABLE>
<CAPTION>
Name                     Age                            Position
- ----                     ---                            --------
<S>                      <C> <C>
Kwok L. Li ............. 41  Chairman of the Board of Directors and Chief Technical Officer
William R. Wilson ...... 51  President, Chief Executive Officer and Director
J. Robert Fugate ....... 38  Executive Vice President and Chief Financial Officer
David M. Boatner ....... 51  Executive Vice President and Chief Marketing Officer
Larry A. Walberg ....... 50  Senior Vice President of Network Operations
Todd W. Wilkens ........ 32  Senior Vice President of Engineering
Patrick J. McGettigan,
 Jr. ................... 46  Senior Vice President, Secretary and General Counsel
Roy A. Wilkens ......... 56  Director
Marshall C. Turner ..... 57  Director
James M. Nakfoor ....... 35  Director
</TABLE>

   Kwok L. Li has served as Chairman of the Board since July 1997 and has
served as Chief Technical Officer of Splitrock since April 1998. Mr. Li is a
co-founder of Splitrock. Mr. Li has also been the Chairman and managing member
of Linsang since July 1997. Linsang is a technology investment company in which
Mr. Li owns a controlling interest. Mr. Li was a director of Yurie Systems from
1995 until the consummation of the sale of Yurie to Lucent in 1998. Mr. Li also
served as Vice Chairman of Yurie from June 1997 until the sale, as President
and Chief Operating Officer of Yurie from March 1996 to June 1997, and as
Executive Vice President and Chief Technical Officer of Yurie from August 1994
through March 1996. From 1991 to 1994, Mr. Li was Director of Strategic
Planning at WilTel. Mr. Li is the primary technical architect of the Lucent AC-
120 switch technology. Mr. Li received a B.E.S. in electrical engineering from
The Johns Hopkins University in 1979.

   William R. Wilson has served as President of Splitrock since its inception
and as Chief Executive Officer since April 1997. Mr. Wilson is a co-founder of
Splitrock. Prior to joining Splitrock, Mr. Wilson was the Chief Executive
Officer of OneLine Management, a telecommunications consulting firm
specializing in strategic positioning founded by Mr. Wilson in 1995. In that
capacity, Mr. Wilson advised Carso Global and Telmex on strategic matters. From
1989 to 1995, Mr. Wilson was Vice President of Strategic Planning at WilTel.
Previously, Mr. Wilson taught at Rice University, The University of Texas at
Austin, and The University of Michigan. Mr. Wilson holds a Ph.D. in Social
Psychology from The University of Michigan and an M.B.A. from The University of
Texas at Austin.

   J. Robert Fugate joined Splitrock as Executive Vice President and Chief
Financial Officer in March 1999. From 1997 to 1999, Mr. Fugate served as
Executive Vice President and Chief Financial Officer of Fuego Technology
Corporation, a privately held software development company based in Dallas,
Texas. From 1996 to 1997 Mr. Fugate was Vice President, Corporate Development
for General Wireless Inc., a private Dallas-based company with licenses to
develop personal communications services. In addition, Mr. Fugate served as
Senior Vice President, Finance and Chief Financial Officer of Mobile
Telecommunication Technologies Corp. (since renamed SkyTel Communications,
Inc.) from 1988 to 1996, a publicly traded nationwide and international
provider of personal messaging services. Mr. Fugate received an M.B.A. from
Harvard University and a B.B.A. from The University of Mississippi.

   David M. Boatner joined Splitrock in March 1999 as Executive Vice President
and Chief Marketing Officer. Prior to joining Splitrock, Mr. Boatner was the
President of Business Services for McLeodUSA, an integrated telecommunications
provider in the Midwest, where he was responsible for sales, marketing and

                                       54
<PAGE>

customer support for business subscribers. From January 1995 to February 1996,
Mr. Boatner served as Regional Vice President of Sales for LDDS-WorldCom, where
he was responsible for business telecommunications sales in the central,
southwest and western United States. Mr. Boatner was employed as Vice President
of Sales for WilTel from 1985 until WilTel was acquired by LDDS-WorldCom in
1995. In this capacity he managed the nationwide data and long distance sales
for WilTel. Prior to joining WilTel, Mr. Boatner held numerous sales and
marketing positions at Southwestern Bell and AT&T.

   Larry A. Walberg joined Splitrock as Senior Vice President of Network
Operations in April 1999. Prior to joining us, Mr. Walberg was Vice President,
Global Data Network Operations at MCI WorldCom, where he managed the
operational expansion of a data network from North America into five
continents, directed the merger of operations of local and long-distance data
network platforms and integrated and migrated the data network platforms of
WorldCom, MCI, MFS and BrooksFiber into a single network architecture.
Previously, Mr. Walberg served as Director/Manager, Advanced Product Support
for WilTel and successor entities from May 1992 to May 1997 where he
established the operational model for the first public frame relay offering.

   Todd W. Wilkens has served as Vice President of Engineering of Splitrock
since July 1997 and as Senior Vice President since April 1999. From 1996 to
1997, Mr. Wilkens was Vice President, Engineering and Operations, at GridNet
International, where he helped GridNet, a start-up Internet services company,
implement a nationwide frame relay/ATM network. From 1994 to 1996, Mr. Wilkens
was Manager, Advanced Products Support, at WorldCom where he helped build the
Internet Support Organization which specialized in building and operating
Internet service provider backbones. Prior to that, Mr. Wilkens supported
offshore communications in the Gulf of Mexico for Conoco/Dupont. Mr. Wilkens
holds a B.S.E.E. from Oklahoma State University. Mr. Wilkens is the son of
Roy A. Wilkens, a director of Splitrock.

   Patrick J. McGettigan, Jr., has served as General Counsel of Splitrock since
September 1997, as Secretary since March 1998, and as Senior Vice President
since April 1998. Prior to joining Splitrock, Mr. McGettigan was in the private
practice of law, having been a partner in the firm he founded in the early
1980s. Mr. McGettigan served as outside counsel to Splitrock when it was formed
in March 1997. Mr. McGettigan received a Bachelor of Arts degree from The
University of Texas and his JD degree from South Texas College of Law, and is a
member of the State Bar of Texas.

   Roy A. Wilkens has served as a director of Splitrock since April 1998. Mr.
Wilkens was President of The Williams Pipeline Company when he founded WilTel
in 1985. He was Founder/Chief Executive Officer of WilTel Network Services from
1985 to 1995. In 1995, WilTel Network Services was acquired by LDDS
Communications, which now operates under the name WorldCom. Mr. Wilkens served
as Vice Chairman of WorldCom until his retirement in 1997. In 1992, Mr. Wilkens
was appointed by President George Bush to the National Security
Telecommunications Advisory Council. He has also served as chairman of both the
Competitive Telecommunications Association (CompTel) and the National
Telecommunications Network. Mr. Wilkens is a member of the board of directors
of Paging Network, Inc., UniDial Inc., Invensys Corporation Inc. and Williams
Communications. Mr. Wilkens is the father of Todd Wilkens, Splitrock's Vice
President of Engineering.

   Marshall C. Turner joined our board of directors in April 1999. Since 1990
Mr. Turner has been an independent consultant and technology venture investor
at Turner Venture Associates. From 1981 through 1998, Mr. Turner was General
Partner of Taylor & Turner Associates, Ltd., which itself was a general partner
of several venture capital partnerships. Mr. Turner has been a venture capital
principal or operating executive in technology industries for 25 years. He is a
director of the Alliance Technology Fund, Inc., DuPont Photomasks, Inc., and
four privately-held companies, including Linsang Partners, LLC, one of our
largest shareholders. Mr. Turner is also a Vice Chairman of the board of the
Public Broadcasting Service, of the Smithsonian Museum of Natural History, and
director of the George Lucas Educational Foundation. Mr. Turner received B.S.
and M.S. degrees in Mechanical Engineering and Product Design from Stanford
University and an M.B.A. from Harvard University.

                                       55
<PAGE>

   James M. Nakfoor joined our board of directors in April 1999. Since 1991,
Mr. Nakfoor has served as Vice President of Securities Trading for Inversora
Bursatil, S.A. de C.V., a wholly-owned subsidiary of Grupo Financiero Inbursa,
S.A. de C.V., which is engaged in the securities brokerage, investment banking
and money management business in Mexico. Grupo Financiero, which is affiliated
with Carso Global Telecom, is a Mexican financial group whose businesses
include banking, brokerage, insurance, leasing, factoring and other financial
services. Since September 1997, Mr. Nakfoor has been a member of the Board of
Directors of Prodigy Communication Corporation. Mr. Nakfoor holds a B.A. degree
in Economics and an M.B.A. degree from the University of Texas at Austin.

Other Significant Employees

   Tracy Hammond joined Splitrock as Controller in September 1997. In October
of 1998, Ms. Hammond was named Vice-President and Controller. From 1995 to
1997, Ms. Hammond served as Vice President--Finance and Administration of
Comsul, Ltd., a privately held national communications consulting firm. From
1992 to 1995, Ms. Hammond was Principal Financial Officer at Optex Biomedical,
a high-tech biomedical start-up company. Previously, Ms. Hammond worked for
seven years in Arthur Andersen's emerging business practice group, achieving
the level of audit manager. Ms. Hammond is a CPA, and holds a B.S. in
Accountancy from The University of Missouri.

   Frank W. Williams joined Splitrock in December of 1998 as Vice President of
Operations. Prior to joining Splitrock, Mr. Williams held several management
and senior executive positions with WilTel. His most recent position was as
Senior Operations Executive where he directed and developed the National
Technical Resource Center. This center supported 2,500 field technicians
servicing digital communications products manufactured by Nortel, NEC, Octel,
Cisco, Bay Networks and 3Com. Mr. Williams received a B.A. in Business from
Trinity University and an Associate of Arts from the Marion Institute in
Marion, Alabama.

   Ralph Freeman joined Splitrock as Vice President of Information Services in
February 1999. From 1996 to June 1998, Dr. Freeman was Chief Information
Officer at American Telco. In June 1998, he became Vice President of
Information Systems at Logix Communications Enterprises, one of the largest
competitive local exchange carriers in the country, which acquired American
Telco. During this tenure, he helped build a new multi-state network
architecture. From 1991 to 1994, Dr. Freeman was the manager in the electronics
and software departments of Walt Disney Imagineering. Dr. Freeman holds a B.S.
in Engineering Management from the Air Force Academy; a M.S. in Business
Administration, Computer Methods from the University of California at Los
Angeles; and a Ph.D. in Information Technology from George Mason University.

Board of Directors

   Our board of directors is divided into three classes. Each class consists of
up to two directors elected for staggered, three-year terms.

<TABLE>
<CAPTION>
        Directors whose               Directors              Directors whose
      terms expire in 2000    whose terms expire in 2001   terms expire in 2002
      --------------------    --------------------------   --------------------
      <S>                     <C>                          <C>
      Marshall C. Turner          William R. Wilson             Kwok L. Li
                                    Roy A. Wilkens           James M. Nakfoor
</TABLE>

Committees of the Board of Directors

   Our board has standing audit and compensation committees. The compensation
committee consists of Kwok L. Li, William R. Wilson and Roy A. Wilkens. The
audit committee members are Roy A. Wilkens, Marshall C. Turner and James M.
Nakfoor.

                                       56
<PAGE>

Director Compensation

   Directors who are employed by our company are not entitled to receive any
additional compensation for serving on our board of directors. We pay each of
our non-employee directors an annual fee of $10,000 and a fee of $500 for
attending each committee meeting not held on the same date as a regular meeting
of directors. We also reimburse directors for reasonable expenses incurred in
conjunction with attending meetings. We did not make any cash compensation
payments to our directors in 1998, except for the reimbursement of expenses.
Mr. Wilkens and Mr. Samer Salameh, a former board member, waived all cash
compensation for 1998. Directors are also eligible for grants of awards under
our stock option plan. On May 28, 1998, we granted our outside directors --
Messrs. Salameh and Wilkens-- options to purchase 80,000 shares of common stock
at $1.10 per share, with options to purchase 20,000 shares vesting on each of
the first four anniversaries of the date of grant. On April 22, 1999, our board
accelerated the vesting of 20,000 of Mr. Salameh's options otherwise due to
vest on May 28, 1999 as a result of his service on the board. On April 22,
1999, we granted each of our new outside directors --Messrs. Turner and
Nakfoor-- options to purchase 80,000 shares of common stock at $5.50 per share,
with options to purchase 20,000 shares vesting on each of the first four
anniversaries of the date of grant.

Executive Compensation

   The following table sets forth certain information regarding the
compensation earned by or awarded to our Chief Executive Officer and each
executive officer whose compensation exceeded $100,000 for the year ended
December 31, 1998.

                           Summary Compensation Table

<TABLE>
<CAPTION>
                                                                     Long-term
                                                                    Compensation
                                        Annual Compensation            Awards
                                   -------------------------------  ------------
                                                                     Securities
                                                     Other Annual    Underlying
                                   Year Salary ($) Compensation ($)  Options(#)
                                   ---- ---------  ---------------  ------------
<S>                                <C>  <C>        <C>              <C>
Kwok L. Li, Chairman of the Board
 and Chief Technical Officer.....  1998      --            --             --
                                   1997                $10,600            --
William R. Wilson, President and
 Chief Executive Officer.........  1998 $151,440           --             --
                                   1997   62,980       $16,400
Patrick J. McGettigan, Jr.,
 Senior
 Vice President, Secretary and
 General Counsel.................  1998 $150,833           --             --
                                   1997   46,933       $65,000        250,000
</TABLE>

   The other annual compensation for services rendered by Mr. Li and Mr. Wilson
was paid in the form of shares of common stock in May 1997. Mr. McGettigan
became an employee of Splitrock in September 1997. Prior to being employed by
Splitrock, Mr. McGettigan performed legal services on behalf of Splitrock and
his former law firm received approximately $18,000 from Splitrock in 1997. The
other annual compensation for Mr. McGettigan was granted to him as a bonus upon
becoming an employee of Splitrock. In 1997 Mr. McGettigan also received options
to acquire 250,000 shares of our common stock with an exercise price of $0.63,
of which 80,000 vested immediately and the balance vests over four years in
equal installments.

Option Grants in Fiscal Year 1998

   We did not grant any stock options to the executive officers named in the
Summary Compensation Table during 1998.

                                       57
<PAGE>

Aggregated Fiscal Year-End Option Values

   The following table shows information with respect to unexercised options
held by the executive officers named in the Summary Compensation Table as of
December 31, 1998. No stock options were exercised by any executive officers
during the year ended December 31, 1998.

<TABLE>
<CAPTION>
                             Number of Securities
                                  Underlying           Value of Unexercised
                              Unexercised Options      In-the-Money Options
                             at December 31, 1998      at December 31, 1998
                           ------------------------- -------------------------
                           Exercisable Unexercisable Exercisable Unexercisable
                           ----------- ------------- ----------- -------------
<S>                        <C>         <C>           <C>         <C>
Kwok L. Li................       --           --           --           --
William R. Wilson.........       --           --           --           --
Patrick J. McGettigan,
 Jr.......................   122,500      127,500     $333,813     $347,438
</TABLE>

   Options are "in-the-money" if the value of our common stock exceeds the
exercise price of the options. There was no public market for our common stock
as of December 31, 1998. Accordingly, we have calculated these values on the
basis of a valuation of our common stock made by an independent firm and which
was determined to be $3.35 per share.

Employment Agreements

   We have entered into employment agreements with Messrs. Wilson, McGettigan,
Boatner and Fugate.

   Under Mr. Wilson's employment agreement, which terminates on March 15, 2002,
he is entitled to receive an annual base salary of $150,000, subject to
adjustment by the board of directors or the Compensation Committee. The board
adjusted Mr. Wilson's annual salary to $200,000 as of January 1, 1999. If Mr.
Wilson's employment is terminated upon his death or disability or by us without
cause, then he is entitled to continue to receive his base salary through the
remaining term of the agreement. The agreement further provides that Mr. Wilson
may engage in other business endeavors without violating any of provisions of
the agreement.

   Under Mr. McGettigan's employment agreement, which terminates on August 31,
1999, he is entitled to receive an annual base salary of $140,000, subject to
adjustment by the board of directors or the Compensation Committee. We adjusted
Mr. McGettigan's annual salary to $180,000 as of January 1, 1999. If we
terminate Mr. McGettigan's employment without cause, then he is entitled to
continue to receive his base salary through the remaining term of the
agreement. Under his employment agreement, Mr. McGettigan received a signing
bonus of $65,000 and was granted options to purchase 250,000 shares of our
common stock at an exercise price of $0.63 per share. 80,000 shares of these
options vested immediately and the remaining 170,000 shares will vest in four
equal annual installments.

   Under Mr. Boatner's employment agreement, which terminates on February 28,
2001, he is entitled to receive an annual base salary of $175,000. Mr. Boatner
also received a signing bonus of $75,000 and was granted options to acquire
400,000 shares of our common stock at an exercise price of $5.50 per share.
These options vest in four equal annual installments beginning on March 1,
2000. If we terminate Mr. Boatner's employment without cause, then he is
entitled to continue to receive his base salary through the remaining term of
the agreement.

   Under Mr. Fugate's employment agreement, which terminates on March 21, 2001,
he is entitled to an annual base salary of $185,000. Mr. Fugate also received a
signing bonus of $50,000 and was granted options to purchase 350,000 shares of
our common stock at an exercise price of $5.50 per share. These options vest in
four equal annual installments beginning on March 21, 2000. If we terminate Mr.
Fugate's employment without cause, then he is entitled to continue to receive
his base salary for 12 months following termination, if his employment is
terminated before March 21, 2000, or for six months following termination, if
his employment is terminated after March 21, 2000.

                                       58
<PAGE>

Stock Incentive Plans

 1997 Incentive Share Plan

   Our 1997 incentive share plan became effective on June 16, 1997. On April 1,
1998, our board of directors approved and adopted an amendment and restatement
of the plan which was subsequently approved and adopted by our stockholders on
April 27, 1998. The purpose of the plan is to provide employees, and non-
employee directors, and consultants with additional incentives by increasing
their ownership interests in our company.

   Individual awards under the plan may take the form of one or more of :

  .  either incentive or non-qualified stock options;

  .  stock appreciation rights;

  .  restricted stock; and

  .  other awards, the value of which is based in whole or in part upon the
     value of our common stock.

   Options under the 1997 plan have a term of ten years and are generally
granted with an exercise price equivalent to fair market value at the date of
grant. Individual option grants vest over time, based upon a schedule approved
by our board of directors, which is generally four years. All of our common
stock options vest automatically upon a change in control, as defined in the
1997 plan.

   Our compensation committee administers the 1997 plan, determines the persons
who will receive awards and establishes the terms and conditions of those
awards. Our President is also authorized to grant awards to other employees who
are not executive officers. The maximum number of shares of common stock that
may be subject to outstanding awards is 20,000,000. As of April 30, 1999,
options for 6,064,300 shares had been granted, of which:

  .  options to purchase 1,115,500 shares had been exercised, including an
     option to purchase 1,000,000 shares granted to a former director of our
     company;

  .  options to purchase 4,634,300 shares were outstanding; and

  .  options to purchase 314,500 shares, which were previously granted, had
     been canceled or forfeited.

Shares of common stock which are attributable to awards which have expired,
terminated or been canceled or forfeited are available for issuance or use in
connection with future awards.

   Awards under the 1997 plan may be made until January 1, 2007, although we do
not expect to make additional grants under the 1997 plan after the 1999 stock
incentive plan described below goes into effect. The 1997 plan may be amended
by our board of directors without the consent of our stockholders.

 1999 Stock Incentive Plan

   We intend to adopt the Splitrock Services, Inc. 1999 stock incentive plan
prior to this offering. The 1999 stock incentive plan will become effective
upon its adoption by our board of directors and ratification by our
stockholders. The purpose of the 1999 stock incentive plan will be to
strengthen our company by providing an incentive to its employees, officers,
consultants, directors and advisors through the granting or awarding of
incentive and nonqualified stock options, stock appreciation and dividend
equivalent rights, restricted stock, performance units, performance shares,
share awards and phantom stock awards, thereby encouraging these individuals to
devote their abilities and energies to our success.

                                       59
<PAGE>

   The 1999 stock incentive plan will be administered by our compensation
committee, which will consist of non-employee directors. Under the 1999 stock
incentive plan, the compensation committee will have the authority to, among
other things:

  .  select the employees to whom stock options and other incentive awards
     will be granted;

  .  determine the type, size and the terms and conditions of stock options
     and other incentive awards; and

  .  establish the terms for treatment of stock options and other incentive
     awards upon a termination of employment.

   We will authorize shares of common stock for issuance under the 1999 stock
incentive plan for the grant of stock options and other incentive awards to
eligible individuals. The 1999 stock incentive plan will terminate on the day
preceding the tenth anniversary of the date of its adoption by our board of
directors. The board of directors will be able to at any time and from time to
time amend or terminate the 1999 stock incentive plan; provided, however, that,
to the extent necessary under applicable law, no such change will be effective
without the requisite approval of our stockholders. In addition, no such change
will alter or adversely impair any rights or obligations under any stock
options and other incentive awards previously granted, except with the written
consent of the grantee.

Compensation Committee Interlocks and Insider Participation

   In 1997, the compensation of our executive officers was determined by our
board of directors. In April 1998, the board of directors appointed a
compensation committee that now consists of Kwok L. Li, William R. Wilson, and
Roy A. Wilkens, who will determine the compensation of our executive officers
consistent with guidelines established by the board of directors. Mr. Li and
Mr. Wilson are executive officers of Splitrock.

   Kwok L. Li, our Chairman and Chief Technical Officer, was also the Vice
Chairman and a director of Yurie, one of our principal suppliers, until its
acquisition by Lucent. Mr. Li acts as a consultant to Lucent. As of March 31,
1999, we had purchased approximately $12.4 million of products and $1.5 million
of services from Yurie.

   Samer Salameh, a member of our board of directors until April 1999, is
chairman of the board of directors and Chief Executive Officer of Prodigy, our
principal customer, and James M. Nakfoor, a current member of our board of
directors, has been a member of Prodigy's board of directors and its
compensation committee since September 1997. We have entered into an agreement
to provide network services to Prodigy for its subscribers in exchange for a
monthly service charge. During the fiscal year ended December 31, 1998, we
received approximately $63.6 million in revenues from Prodigy.

                                       60
<PAGE>

                              CERTAIN TRANSACTIONS

Financings
   In March 1997, we issued to our founders, Kwok L. Li and William R. Wilson,
400,000 and 600,000 shares, respectively, of our common stock for $0.00167 per
share. In May 1997, we issued 10.6 million and 16.4 million shares of our
common stock, respectively, to Mr. Li and Mr. Wilson in consideration of
services performed since March 1997.
   In June 1997, Mr. Li advanced $10.0 million to us, evidenced by a $10.0
million convertible note. Mr. Li subsequently assigned the convertible note to
Linsang, which converted it into 16.0 million shares of common stock on August
9, 1997.
   In August 1997, Linsang acquired 12.0 million shares in a private
transaction for $7.5 million. In December 1997, we borrowed $1.0 million from
Linsang. This loan was repayable 30 days after written demand or, if no demand
was made, on December 1, 2002 and bore interest at the rate of 9.75% per annum
beginning in February 1998. In January, March and June 1998, we borrowed an
additional $3.0 million, $2.0 million and $5.0 million, respectively, from
Linsang on similar terms. In July 1998, outstanding indebtedness was refinanced
in connection with our senior notes offering. In connection with this
refinancing, Linsang purchased 11,000 units in the senior notes offering.
   In August 1997, Roy Wilkens and Sandra Wilkens purchased 800,000 shares of
our common stock for $0.5 million. Mr. Wilkens became a member of our board of
directors in April 1998.
   In September 1997, Orient Star, a wholly owned subsidiary of Carso Global,
purchased 20.0 million shares of our common stock for $12.5 million. Orient
Star subsequently acquired, pursuant to an option, an additional 5.0 million
shares for $3.1 million and merged into Carso Global. Carso Global currently
holds approximately 30.2% of our outstanding common stock at April 30, 1999.
Samer Salameh, the Chairman of Prodigy, an affiliate of Carso Global, was a
member of our board of directors from April 1998 to April 1999, when he was
succeeded on the board of directors by James Nakfoor, another director of
Prodigy. Mr. Nakfoor is Vice President of another Carso Global affiliate,
Inversora Bursatil, S.A. de C.V., a wholly-owned subsidiary of Grupo Financiero
Inbursa, S.A. de C.V. Carso Global is a controlling stockholder of Prodigy and
an affiliate of Telefonos de Mexico. We are currently testing connectivity
between our network and Telmex's network in anticipation of possible future
business relationships. As a result of Mr. Nakfoor's relationships with Carso
Global and Prodigy, conflicts of interest may arise, including conflicts
relating to potential corporate opportunities. If any conflict arises, we
anticipate that the non-interested members of the board of directors will pass
on the appropriateness of any particular matter.
   In June 1998, Clark McLeod, Chief Executive Officer of McLeodUSA, then one
of our directors, exercised in full a stock option previously granted to him
and purchased 1.0 million shares of our common stock for $1.1 million. Mr.
McLeod was a member of our board of directors from May 1998 to May 1999.
   On July 24, 1998, we offered and sold 261,000 units pursuant to the senior
notes offering, of which 250,000 units were resold to "qualified institutional
buyers" (as defined in Rule 144A under the Securities Act) and 11,000 units to
Linsang, as stated above. Each unit consisted of a senior note and a warrant to
purchase approximately 10.125 shares of our common stock at an exercise price
of $.01 per share. We received gross proceeds of $261.0 million from the senior
notes offering.

Other
   Kwok L. Li, our Chairman and Chief Technical Officer, was also the Vice
Chairman and a Director of Yurie, one of our principal suppliers until its
acquisition by Lucent. Mr. Li acts as a consultant to Lucent. As of March 31,
1999, we had purchased approximately $12.4 million of products and $1.5 million
of services from Yurie. As a result of Mr. Li's relationship with Lucent and
with Linsang, each of which has business relationships with us, there may be
conflicts of interest that arise including conflicts relating to potential
corporate opportunities. If any conflict arises we anticipate that the non-
interested members of our board of directors will pass on the appropriateness
of any particular matter.
   In March and April 1999, we granted executive officers options to purchase a
total of 900,000 shares of our common stock as follows: David Boatner, 400,000
shares; Robert Fugate, 350,000 shares; and Larry Walberg, 150,000 shares. These
options were granted under our 1997 incentive plan, are exercisable at a price
of $5.50 per share, and vest in four equal annual installments beginning on the
first anniversary of the grant date.

                                       61
<PAGE>

                             PRINCIPAL STOCKHOLDERS

   The following table provides information regarding the beneficial ownership
of our common stock as of April 30, 1999 by:

  .  each stockholder known by us to own beneficially 5% or more of our
     outstanding common stock;
  .  each of our current directors;
  .  our Chief Executive Officer and each executive officer whose
     compensation exceeded $100,000 during 1998; and
  .  all of our directors and executive officers as a group.

   Beneficial ownership is determined in accordance with the rules of the
Securities and Exchange Commission. In computing the number of shares
beneficially owned by a person and the percentage ownership of that person,
shares of common stock subject to options and warrants held by that person that
are currently exercisable or exercisable with 60 days of April 30, 1999, are
treated as outstanding. However, these shares are not deemed to be outstanding
for the purpose of computing the percentage ownership of any other person.
<TABLE>
<CAPTION>
                                      Beneficially Owned Securities
                                      Number of Shares Beneficially     Percentage of Shares
                                             Owned Includes              Beneficially Owned
                                      -------------------------------   ------------------------
                         Total Number
                          of shares     Securities       Securities
                         Beneficially   Underlying       Underlying       Before        After
                            Owned        Warrants         Options        Offering      Offering
                         ------------ --------------   --------------   ----------    ----------
<S>                      <C>          <C>              <C>              <C>           <C>
Kwok L. Li.............   38,364,375          111,375              --           46.2%
Linsang Partners,
 L.L.C.................   27,399,375          111,375              --           33.0%
William R. Wilson......   17,000,000              --               --           20.5%
Roy A. Wilkens.........      550,000              --            20,000             *
Marshall C. Turner.....       50,000              --               --              *
Patrick J. McGettigan,
 Jr....................      122,500                           122,500             *
James M. Nakfoor.......          --               --               --            --
Carso Global Telecom,
 S.A. de C.V...........   25,000,000              --               --           30.2%
 Paseo de las Palmas
  #736
 Col Lomas de
  Chapultepec
 Mexico DF CP 11000
Directors and executive
 officers as a group
 (10 people) ..........   56,336,875          111,375          392,500          67.5%
</TABLE>
- --------
* Less than 1%.

   The shares beneficially owned by Mr. Li include 2,100,000 shares owned by
his spouse, 54,000 shares owned by his minor children, and 27,399,375 shares
owned beneficially and of record by Linsang, a limited liability company
controlled by Mr. Li, and members of his family.

   The shares beneficially owned by Linsang include 111,375 shares issuable
upon exercise of warrants included as part of the units purchased by Linsang in
the senior notes offering.

   The shares beneficially owned by Mr. Nakfoor exclude stock owned by Carso
Global Telecom, S.A. de C.V. Carso Global is an affiliate of Grupo Financiera
Inbursa, S.A. de C.V. and Mr. Nakfoor is a Vice President of Inbursa. Mr.
Carlos Slim Helu, a Mexican citizen, and members of his immediate family,
directly and through their ownership of a majority of the voting and economic
interests in two trusts, own a majority of the outstanding voting equity
securities of Carso Global.

   The shares beneficially owned by Mr. Wilkens are held by Mr. Wilkens and
Sandra L. Wilkens jointly. These shares exclude 250,000 shares attributable to
vested options beneficially owned by Mr. Wilkens' son and 270,000 shares owned
by other family members of Mr. Wilkens.

   The shares beneficially owned by Mr. Turner do not include shares
beneficially owned by Linsang, of which Mr. Turner is a director.

                                       62
<PAGE>

                     DESCRIPTION OF LONG-TERM INDEBTEDNESS

11 3/4% Senior Notes

   On July 24, 1998, we issued $261.0 million aggregate principal amount of our
11 3/4% senior notes. The senior notes are due July 15, 2008 and are senior
obligations, ranking pari passu with all of our existing and future senior
indebtedness and senior to all of our future subordinated obligations. The
senior notes bear interest at a rate of 11 3/4% per year, payable semi-annually
on January 15 and July 15 of each year. We have deposited into an escrow
account funds that, together with interest on those funds, will be sufficient
to pay the first four semi-annual interest payments on the senior notes. Except
as described in the preceding sentence, the senior notes are unsecured
obligations.

   The senior notes may be redeemed at any time, in whole or in part, on or
after July 15, 2003 at a redemption price equal to 105.875% of the principal
amount of the notes in the first year and declining yearly to par at July 15,
2006, plus accrued and unpaid interest, if any, to the date of redemption. In
addition, on or prior to July 15, 2001, we may also redeem with the proceeds of
one or more equity offerings up to 35% of the original aggregate principal
amount of the notes originally issued at a redemption price equal to 111.75% of
the aggregate principal amount of the notes plus accrued and unpaid interest,
if any, to the date of redemption; provided that at least 65% of the original
aggregate principal amount of the notes remain outstanding immediately after
each redemption.

   Upon the occurrence of a change of control, we will be required to make an
offer to repurchase all notes properly tendered at a price equal to 101% of the
principal amount plus accrued and unpaid interest to the date of repurchase.

   The indenture governing the notes contains covenants that limit our ability,
directly or through our subsidiaries, to:

  .  incur additional indebtedness or liens or enter into sale/leaseback
     transactions;

  .  pay dividends or make other distributions;

  .  make investments;

  .  repurchase equity interests or subordinated obligations;

  .  consummate asset sales;

  .  enter into transactions with affiliates;

  .  engage in any business other than a telecommunications business; and

  .  merge or consolidate with any other person or sell, assign, transfer,
     lease, convey or otherwise dispose of all or substantially all of our
     assets.

                                       63
<PAGE>

                          DESCRIPTION OF CAPITAL STOCK

Authorized stock; issued and outstanding shares

   Our authorized capital stock consists of 150,000,000 shares of common stock,
par value $0.001 per share, and 25,000,000 shares of preferred stock, par value
$0.001 per share.

 Common Stock

   Following this offering      shares of common stock will be outstanding. All
of the issued and outstanding shares of common stock are and, upon the
completion of this offering, the shares of common stock offered in this
offering will be, fully paid, validly issued and non-assessable.

   The following summarizes the rights of holders of our common stock:

  .  each holder of shares of common stock is entitled to one vote per share
     on all matters to be voted on by stockholders generally, including the
     election of directors;

  .  there are no cumulative voting rights;

  .  the holders of our common stock are entitled to dividends and other
     distributions as may be declared from time to time by the board of
     directors out of funds legally available for that purpose, if any;

  .  upon our liquidation, dissolution or winding up, the holders of shares
     of common stock will be entitled to share ratably in the distribution of
     all of our assets remaining available for distribution after
     satisfaction of all our liabilities and the payment of the liquidation
     preference of any outstanding preferred stock; and

  .  the holders of common stock have no preemptive or other subscription
     rights to purchase shares of our stock, nor will holders be entitled to
     the benefits of any redemption or sinking fund provisions.

   As of the date of this prospectus, there were approximately    record owners
of common stock.

 Preferred Stock

   Our certificate of incorporation authorizes our board of directors to create
and issue one or more series of preferred stock and determine the rights and
preferences of each series within the limits set forth in our certificate of
incorporation and applicable law. Among other rights, the board of directors
may determine, without further vote or action by our stockholders:

  .  the number of shares constituting the series and the distinctive
     designation of the series;

  .  the dividend rate on the shares of the series, whether dividends will be
     cumulative, and if so, from which date or dates, and the relative rights
     of priority, if any, of payment of dividends on shares of the series;

  .  whether the series will have voting rights in addition to the voting
     rights provided by law and, if so, the terms of the voting rights;

  .  whether the series will have conversion privileges and, if so, the terms
     and conditions of conversion;

  .  whether or not the shares of the series will be redeemable or
     exchangeable, and, if so, the dates, terms and conditions of redemption
     or exchange, as the case may be;

  .  whether the series will have a sinking fund for the redemption or
     purchase of shares of that series, and, if so, the terms and amount of
     the sinking fund; and

  .  the rights of the shares of the series in the event of our voluntary or
     involuntary liquidation, dissolution or winding up and the relative
     rights or priority, if any, of payment of shares of the series.

                                       64
<PAGE>

   Unless otherwise provided by our board of directors, the shares of all
series of preferred stock will rank on a parity with respect to the payment of
dividends and to the distribution of assets upon liquidation. Although we have
no present plans to issue any shares of preferred stock, any future issuance of
shares of preferred stock, or the issuance of rights to purchase preferred
shares, may have the effect of delaying, deferring or preventing a change of
control in our company or an unsolicited acquisition proposal. The issuance of
preferred stock also could decrease the amount of earnings and assets available
for distribution to the holders of common stock or could adversely affect the
rights and powers, including voting rights, of the holders of the common stock.

 Warrants

   As part of the Senior Notes offering, we have issued warrants to purchase
2,642,613 shares of our common stock at an exercise price of $.01 per share.
The warrants become exercisable on July 26, 1999 and expire on July 15, 2008.

Section 203 of the Delaware General Corporation Law

   We are subject to the provisions of Section 203 of the Delaware General
Corporation Law. Under Section 203, business combinations between a Delaware
corporation whose stock generally is publicly traded or held of record by more
than 2,000 stockholders and an interested stockholder are generally prohibited
for a three-year period following the date that such a stockholder became an
interested stockholder, unless:

  .  the corporation has elected in its original certificate of incorporation
     not to be governed by Section 203. We did not make this election;

  .  the business combination was approved by the board of directors of the
     corporation before the other party to the business combination became an
     interested stockholder;

  .  upon consummation of the transaction that made it an interested
     stockholder, the interested stockholder owned at least 85% of the voting
     stock of the corporation outstanding at the commencement of the
     transaction, excluding voting stock owned by directors who are also
     officers or held in employee benefit plans in which the employees do not
     have a confidential right to tender or vote stock held by the plan; or

  .  the business combination was approved by the board of directors of the
     corporation and ratified by two-thirds of the voting stock not owned by
     the interested stockholder.

   The three-year prohibition also does not apply to some business combinations
proposed by an interested stockholder following the announcement or
notification of an extraordinary transaction involving the corporation and a
person who had not been an interested stockholder during the previous three
years or who became an interested stockholder with the approval of the majority
of the corporation's directors. The term "business combination" is defined
generally under Section 203 to include mergers or consolidations between a
Delaware corporation and an interested stockholder, transactions with an
interested stockholder involving the assets or stock of the corporation or its
majority-owned subsidiaries and transactions which increase an interested
stockholder's percentage ownership of stock. The term "interested stockholder"
is defined generally under Section 203 as a stockholder who, together with
affiliates and associates, owns or within three years prior did own 15% or more
of a Delaware corporation's voting stock. Section 203 could prohibit or delay a
merger, takeover or other change in control of Splitrock and therefore could
discourage attempts to acquire us.

Transfer agent and registrar

   The transfer agent and registrar for our common stock is       .

                                       65
<PAGE>

                        SHARES ELIGIBLE FOR FUTURE SALE

   Immediately following this offering, there will be      shares of our common
stock issued and outstanding. Of these shares, the      shares of common stock
to be sold in this offering will be immediately eligible for sale in the public
market, except for shares owned at any time by our affiliates within the
meaning of Rule 144 under the Securities Act. The remaining      issued and
outstanding shares are restricted securities within the meaning of Rule 144 and
may not be publicly resold, except in compliance with the registration
requirements of the Securities Act or pursuant to an exemption from
registration, including that provided by Rule 144.

   Outstanding warrants to purchase 2,642,613 shares of common stock at a
purchase price of $.01 per share become exercisable on July 26, 1999. Shares
issued upon the exercise of these warrants will be immediately eligible for
sale in the public market, except for shares owned at any time by our
affiliates.

Rule 144

   In general, under Rule 144, a person, or persons whose shares are
aggregated, who has beneficially owned restricted securities for at least one
year, including a person who may be deemed affiliate, is entitled to sell
within any three month period a number of our shares of common stock that does
not exceed the greater of:

  .  1% of the then-outstanding shares of our common stock; or

  .  the average weekly trading volume of our common stock on the Nasdaq
     National Market during the four calendar weeks preceding the date on
     which notice of the sale is filed with the Securities and Exchange
     Commission.

   Sales under Rule 144 are subject to restrictions relating to manner of sale,
notice and the availability of current public information about us. A person
who is not our affiliate at any time during the 90 days preceding a sale and
who has beneficially owned shares for at least two years would be entitled to
sell shares following this offering under Rule 144(k) without regard to the
volume limitations, manner of sale provisions or notice requirements of Rule
144.

Rule 701

   Our employees, directors, officers or consultants who purchased our shares
in connection with a written compensatory plan or contract may be entitled to
rely on the resale provisions of Rule 701. Rule 701 permits non-affiliates to
sell their Rule 701 shares without having to comply with the public
information, holding period, volume limitation or notice provisions of Rule
144. Affiliates may sell their Rule 701 shares without having to comply with
Rule 144's holding period restrictions. In each of these cases, Rule 701 allows
the shareholders to sell 90 days after the date of this prospectus.

Lock-up agreements

   Our directors and executive officers, Linsang and Carso Global, who
collectively hold     of the outstanding shares of our common stock, have
agreed, subject to limited exceptions, not to sell, offer to sell or otherwise
dispose of our common stock or securities convertible into or exercisable or
exchangeable for our common stock for a period of 180 days after the date of
this prospectus without the prior written consent of Bear, Stearns & Co. Inc.,
on behalf of the underwriters.

Registration Statement on Form S-8

   Following this offering, we intend to file a registration statement on Form
S-8 under the Securities Act to register the shares of common stock reserved
for issuance under our employee benefit plans. The stock registered under that
registration statement will thereafter be available for sale in the public
market, subject to the resale limitations of Rule 144 applicable to our
affiliates.

                                       66
<PAGE>

   Prior to the date of this prospectus, no public market has existed for our
common stock. We expect that trading of our common stock on the Nasdaq National
Market will commence on the date of this prospectus. We do not make any
prediction regarding the effect, if any, that future sales of shares, or the
availability of our shares for future sale, will have on the market price of
our common stock. The market price of our common stock can be adversely
affected by sales of substantial amounts of common stock or by the perception
that these sales could occur.

              U.S. FEDERAL TAX CONSIDERATIONS FOR NON-U.S. HOLDERS

   The following is a general discussion of the principal United States federal
income and estate tax consequences of the ownership and disposition of common
stock by a Non-U.S. Holder, as defined below. As used herein, the term "Non-
U.S. Holder" means a holder that for United States federal income tax purposes
is an individual or entity other than:

  .  a citizen or individual resident of the United States,

  .  a corporation or partnership created or organized in or under the laws
     of the United States or of any state thereof, unless in the case of a
     partnership or in the District of Columbia, U.S. Treasury regulations
     provide otherwise,

  .  an estate the income of which is subject to U.S. federal income taxation
     regardless of its source or

  .  a trust if a U.S. court is able to exercise primary supervision over the
     administration of the trust and one or more U.S. persons have the
     authority to control all substantial decisions of the trust.

   In general, an individual may be deemed to be a resident alien, as opposed
to a nonresident alien, by virtue of being present in the United States for at
least 31 days in the calendar year and for an aggregate of at least 183 days
during a three-year period ending in the current calendar year, counting for
these purposes all of the days present in the current year, one-third of the
days present in the immediately preceding year and one-sixth of the days
present in the second preceding year. Resident aliens are subject to U.S.
federal tax as if they were U.S. citizens.

   This discussion does not address all aspects of United States federal income
and estate taxes that may be relevant to Non-U.S. Holders in light of their
personal circumstances, including the fact that in the case of a Non-U.S.
Holder that is a partnership, the U.S. tax consequences of holding and
disposing of shares of common stock may be affected by determinations made at
the partner level, or that may be relevant to various types of Non-U.S. Holders
which may be subject to special treatment under United States federal income
tax laws, including, for example, insurance companies, tax-exempt
organizations, financial institutions, dealers in securities and holders of
securities held as part of a "straddle," "hedge," or "conversion transaction,"
and does not address U.S. state or local or foreign tax consequences.
Furthermore, this discussion is based on provisions of the Internal Revenue
Code of 1986, as amended, existing and proposed regulations promulgated
thereunder and administrative and judicial interpretations thereof, all as of
the date of this prospectus, and all of which are subject to change, possibly
with retroactive effect. The following summary is included herein for general
information. Accordingly, prospective investors may wish to consult their tax
advisers regarding the United States federal, state, local and non-U.S. income
and other tax consequences of acquiring, holding and disposing of shares of
common stock.

Dividends

   We do not anticipate declaring or paying cash dividends on our common stock
in the near future. However, if dividends are paid on shares of our common
stock, dividends paid to a Non-U.S. Holder of Common Stock generally will be
subject to withholding of United States federal income tax at a 30% rate, or
the lower rate provided by the income tax treaty between the United States and
a foreign country if the Non-U.S. Holder is treated as a resident of that
foreign country within the meaning of the applicable treaty. Non-U.S. Holders
should consult their tax advisors regarding their entitlement to benefits under
a relevant income tax treaty.

                                       67
<PAGE>

   Dividends that are effectively connected with a Non-U.S. Holder's conduct of
a trade or business in the United States or, if an income tax treaty applies,
attributable to a permanent establishment in the United States, are generally
subject to U.S. federal income tax on a net income basis at regular graduated
rates, but are not generally subject to the 30% withholding tax if the Non-U.S.
Holder files the appropriate U.S. Internal Revenue Service form with the payor,
which form under U.S. Treasury regulations generally requires the Non-U.S.
Holder to provide a U.S. taxpayer identification number. Any U.S. trade or
business income received by a Non-U.S. Holder that is a corporation may also be
subject to an additional "branch profits tax" at a 30% rate or the lower rate
specified by an applicable income tax treaty.

   Under currently applicable U.S. Treasury regulations, dividends paid to an
address in a foreign country are presumed, absent actual knowledge to the
contrary, to be paid to a resident of that country for purposes of the
withholding discussed above and for purposes of determining the applicability
of a tax treaty rate. Under U.S. Treasury regulations generally effective for
payments made after December 31, 2000 (the "Final Regulations'), however, a
Non-U.S. Holder of our common stock who wishes to claim the benefit of an
applicable treaty rate generally will be required to satisfy applicable
certification and other requirements. In addition, under the Final Regulations,
in the case of our common stock held by a foreign partnership, (1) the
certification requirement will generally be applied to the partners of the
partnership and (2) the partnership will be required to provide certain
information, including a United States taxpayer identification number. The
Final Regulations also provide look-through rules for tiered partnerships.
Further, the Internal Revenue Service intends to issue regulations under which
a foreign trustee or foreign executor of a U.S. or foreign trust or estate,
depending on the circumstances, will be required to furnish the appropriate
withholding certificate on behalf of the beneficiaries, grantor trust or
estate, as the case may be.

   A Non-U.S. Holder of our common stock that is eligible for a reduced rate of
U.S. withholding tax under an income tax treaty may obtain a refund of any
excess amounts withheld by filing an appropriate claim for a refund with the
Internal Revenue Service.

   The Final Regulations also provide special rules for dividend payments made
to foreign intermediaries, U.S. or foreign wholly owned entities that are
disregarded for U.S. federal income tax purposes and entities that are treated
as fiscally transparent in the United States, the applicable income tax treaty
jurisdiction, or both. In addition, recently enacted legislation, effective
August 5, 1997, denies income tax treaty benefits to foreigners receiving
income derived through a partnership, or another otherwise fiscally transparent
entity, in certain circumstances. Prospective investors should consult with
their own tax advisers concerning the effect, if any, of Final Regulations and
this recent legislation on an investment in our common stock.

Gain on disposition of common stock

   A Non-U.S. Holder generally will not be subject to U.S. federal income tax
in respect of gain recognized on a disposition of our common stock unless:

  (a) the gain is U.S. trade or business income, in which case, the branch
      profits tax described above may also apply to a corporate Non-U.S.
      Holder,

  (b) the Non-U.S. Holder is an individual who holds our common stock as a
      capital asset within the meaning of Section 1221 of the Internal
      Revenue Code, is present in the United States for 183 or more days in
      the taxable year of the disposition and meets other requirements,

  (c) the Non-U.S. Holder is subject to tax under the provisions of the U.S.
      tax law applicable to United States expatriates or

  (d) we are or have been a "U.S. real property holding corporation" for
      federal income tax purposes at any time during the shorter of the five-
      year period preceding the disposition or the period that the Non-U.S.
      Holder held our common stock.

Generally, a corporation is a "U.S. real property holding corporation" if the
fair market value of its "U.S. real property interests" equals or exceeds 50%
of the sum of the fair market value of its worldwide real property interests
plus its other assets used or held for use in a trade or business. We believe
that we have not

                                       68
<PAGE>

been, are not currently, and do not anticipate becoming, a "U.S. real property
holding corporation" for U.S. federal income tax purposes. The tax with
respect to stock in a "U.S. real property holding corporation" does not apply
to a Non-U.S. Holder whose holdings, direct and indirect, at all times during
the applicable period, constituted 5% or less of our common stock, provided
that our common stock was regularly traded on an established securities
market. If we were, or were to become, a U.S. real property holding
corporation, we believe that our common stock would be treated as "regularly
traded."

   If a Non-U.S. Holder who is an individual is subject to tax under clause
(a) above, the individual generally will be taxed on the net gain derived from
a sale of common stock under regular graduated United States federal income
tax rates. If an individual Non-U.S. Holder is subject to tax under clause (b)
above, the individual generally will be subject to a flat 30% tax on the gain
derived from a sale, which may be offset by particular United States capital
losses, notwithstanding the fact that the individual is not considered a
resident alien of the United States. Thus, individual Non-U.S. Holders who
have spent, or expect to spend, more than a de minimis period of time in the
United States in the taxable year in which they contemplate a sale of common
stock are urged to consult their tax advisers prior to the sale concerning the
U.S. tax consequences of that sale.

   If a Non-U.S. Holder that is a foreign corporation is subject to tax under
clause (a) above, it generally will be taxed on its net gain under regular
graduated United States federal income tax rates and, in addition, will be
subject to the branch profits tax equal to 30% of its "effectively connected
earnings and profits," within the meaning of the Internal Revenue Code for the
taxable year, as adjusted for certain items, unless it qualifies for a lower
rate under an applicable tax treaty.

Federal estate tax

   Common stock owned or treated as owned by an individual who is neither a
United States citizen nor a United States resident, as defined for United
States federal estate tax purposes, at the time of death will be included in
the individual's gross estate for United States federal estate tax purposes,
unless an applicable estate tax or other treaty provides otherwise and,
therefore, maybe subject to United States federal estate tax.

Information reporting and backup withholding tax

   Under United States Treasury regulations, we must report annually to the
Internal Revenue Service and to each Non-U.S. Holder the amount of dividends
paid to that holder and the tax withheld with respect to those dividends.
Copies of the information returns reporting dividends and withholding may also
be made available to the tax authorities in the country in which the Non-U.S.
Holder is a resident under the provisions of an applicable income tax treaty
or agreement.

   United States backup withholding, which generally is a withholding tax
imposed at the rate of 31% on payments to persons that fail to furnish
information under the United States information reporting requirements,
generally will not apply:

  .  to dividends paid to Non-U.S. Holders that are subject to the 30%
     withholding discussed above or that are not so subject because a tax
     treaty applies that reduces or eliminates such 30% withholding or

  .  before January 1, 2001, to dividends paid to a Non-U.S. Holder at an
     address outside of the United States unless the payor has actual
     knowledge that the payee is a U.S. Holder.

Backup withholding and information reporting generally will apply to dividends
paid to addresses inside the United States on shares of our common stock to
beneficial owners that are not "exempt recipients" and that fail to provide
identifying information in the manner required.

   The payment of the proceeds of the disposition of our common stock by a
holder to or through the U.S. office of a broker or through a non-U.S. branch
of a U.S. broker generally will be subject to information reporting and backup
withholding at a rate of 31% unless the holder either certifies its status as
a Non-U.S.

                                      69
<PAGE>

Holder under penalties of perjury or otherwise establishes an exemption. The
payment of the proceeds of the disposition by a Non-U.S. Holder of common stock
to or through a non-U.S. office of a non-U.S. broker will not be subject to
backup withholding or information reporting unless the non-U.S. broker has
particular types of U.S. relationships. In the case of the payment of proceeds
from the disposition of our common stock effected by a foreign office of a
broker that is a U.S. person or a "U.S. related person," existing regulations
require information reporting on the payment unless the broker receives a
statement from the owner, signed under penalty of perjury, certifying its non-
U.S. status or the broker has documentary evidence in its files as to the Non-
U.S. Holder's foreign status and the broker has no actual knowledge to the
contrary. For this purpose, a "U.S. related person" is:

  .  a "controlled foreign corporation" for U.S. federal income tax purposes
     or

  .  a foreign person 50% or more of whose gross income from all sources for
     the three-year period ending with the close of its taxable year
     preceding the payment or for such part of the period that the broker has
     been in existence is derived from activities that are effectively
     connected with the conduct of a U.S. trade or business.

   The Final Regulations alter the foregoing rules in certain respects. Among
other things, these regulations provide presumptions under which a Non-U.S.
Holder is subject to backup withholding at the rate of 31% and information
reporting unless we receive certification from the holder of non-U.S. status.
Depending on the circumstances, this certification will need to be provided:

  .  directly by the Non-U.S. Holder;

  .  in the case of a Non-U.S. Holder that is treated as a partnership or
     other fiscally transparent entity, by the partners, stockholders or
     other beneficiaries of that entity; or

  .  by particular qualified financial institutions or other qualified
     entities on behalf of the Non-U.S. Holder.

   Any amounts withheld under the backup withholding rules from a payment to a
Non-U.S. Holder will be refunded or credited against the holder's U.S. federal
income tax liability, if any, provided that the required information is
furnished to the Internal Revenue Service.

                                       70
<PAGE>

                                  UNDERWRITING

   Subject to the terms and conditions set forth in an underwriting agreement
dated , 1999, the underwriters named below, who are represented by Bear,
Stearns & Co. Inc., Credit Suisse First Boston Corporation, and Prudential
Securities, have severally agreed to purchase from us the aggregate number of
shares of common stock set forth opposite its name below at the public offering
price less the underwriting discounts and commissions set forth on the cover
page of this prospectus:

<TABLE>
<CAPTION>
Underwriters                                                    Number of Shares
- ------------                                                    ----------------
<S>                                                             <C>
Bear, Stearns & Co. Inc........................................
Credit Suisse First Boston Corporation.........................
Prudential Securities..........................................
                                                                      ----
    Total......................................................
                                                                      ====
</TABLE>

   The underwriting agreement provides that the obligations of the several
underwriters are subject to approval of legal matters by their counsel and to
various other conditions. Under the underwriting agreement, the underwriters
are obligated to purchase and pay for all of the above shares of common stock,
other than those covered by the over-allotment option described below, if they
purchase any of the shares.

   The underwriters propose to initially offer some of the shares directly to
the public at the offering price set forth on the cover page of this prospectus
and some of the shares to dealers at this price less a concession not in excess
of $   per share. The underwriters may allow, and dealers may re-allow,
concessions not in excess of $   per share on sales to other dealers. After the
initial offering of the shares to the public, the underwriters may change the
offering price, concessions and other selling terms. The underwriters do not
intend to confirm sales to any accounts over which they exercise discretionary
authority.

   We have granted the underwriters an option exercisable for 30 days from the
date of the underwriting agreement to purchase up to      additional shares at
the offering price less the underwriting fees. The underwriters may exercise
this option solely to cover over-allotments, if any, made in connection with
this offering. To the extent underwriters exercise this option in whole or in
part then each of the underwriters will become obligated, subject to
conditions, to purchase a number of additional shares approximately
proportionate to each underwriter's initial purchase commitment.

   We have agreed to indemnify the underwriters against certain liabilities,
including liabilities under the Securities Act.

   Our directors and executive officers and Linsang and Carso Global, who
collectively hold a total of       shares of common stock, have agreed, subject
to limited exceptions, not to sell or offer to sell or otherwise dispose of any
shares of common stock or securities convertible into or exercisable or
exchangeable for our common stock, for a period of 180 days after the date of
this prospectus without the prior written consent of Bear, Stearns & Co. Inc.,
on behalf of the underwriters.

   In addition, we have agreed that for a period of 180 days after the date of
this prospectus we will not offer, sell or otherwise dispose of any shares of
common stock except for the shares offered in this offering and any shares
offered in connection with employee benefit plans, without the consent of Bear,
Stearns & Co. Inc., on behalf of the underwriters.

   Prior to the offering, there has been no public market for our common stock.
Consequently, the initial offering price for the common stock will be
determined by negotiations between us and the representatives of the
underwriters. Among the factors to be considered in these negotiations will be:

                                       71
<PAGE>

  .  our results of operations in recent periods;

  .  estimates of our business potential;

  .  an assessment of our management;

  .  prevailing market conditions; and

  .  the prices of similar securities of generally comparable companies.

   We have applied to have our common stock listed on the Nasdaq National
Market under the symbol "SPLT." We cannot assure you, however, that an active
or orderly trading market will develop for the common stock or that our common
stock will trade in the public markets subsequent to the offering at or above
the initial offering price.

   In order to facilitate the offering, the underwriters may engage in
transactions that stabilize, maintain or otherwise affect the price of the
common stock during and after the offering. Specifically, the underwriters may
over-allot or otherwise create a short position in the common stock for their
own account by selling more shares of common stock than we have actually sold
to them. The underwriters may elect to cover any short position by purchasing
shares of common stock in the open market or by exercising the over-allotment
option granted to the underwriters. In addition, the underwriters may stabilize
or maintain the price of the common stock by bidding for or purchasing shares
of common stock in the open market and may impose penalty bids, under which
selling concessions allowed to syndicate members or other broker-dealers
participating in the offering are reclaimed if shares of common stock
previously distributed in the offering are repurchased in connection with
stabilization transactions or otherwise. The effect of these transactions may
be to stabilize or maintain the market price at a level above that which might
otherwise prevail in the open market. The imposition of a penalty bid may also
affect the price of the common stock to the extent that it discourages resales
thereof. No representation is made as to the magnitude or effect of these
activities.

   The underwriters have reserved for sale, at the initial public offering
price, up to      shares of common stock for employees, directors and other
persons associated with us who express an interest in purchasing these shares
of common stock in the offering. The number of shares available for sale to the
general public in the offering will be reduced to the extent these persons
purchase reserved shares. Any reserved shares not purchased by these persons
will be offered by the underwriters to the general public on the same terms as
the other shares offered in this offering.

   The underwriters may, from time to time, engage in transactions with, and
perform services for, us in the ordinary course of their business. Prudential
Securities acted as our financial advisor in connection with our agreement to
acquire rights to use dark fiber from Level 3, for which Prudential Securities
will be entitled to receive customary compensation.

   We estimate that our expenses in connection with this offering, excluding
underwriting discounts and commissions, will be approximately $     .

                                       72
<PAGE>

                                 LEGAL MATTERS

   The validity of the shares of common stock offered by this prospectus will
be passed upon for us by Fried, Frank, Harris, Shriver & Jacobson, a
partnership including professional corporations, Washington, D.C., and for the
underwriters by Latham & Watkins, Washington, D.C.

                                    EXPERTS

   The financial statements as of December 31, 1998 and 1997 and for the year
ended December 31, 1998 and for the period from inception (March 5, 1997) to
December 31, 1997 included in this prospectus have been so included in reliance
on the report of PricewaterhouseCoopers LLP, independent accountants, given on
the authority of said firm as experts in auditing and accounting.

                      WHERE YOU CAN FIND MORE INFORMATION

   We have filed with the Securities and Exchange Commission a registration
statement on Form S-1 under the Securities Act of 1933 with respect to the
shares of common stock offered by this prospectus. This prospectus does not
contain all of the information set forth in the registration statement and its
exhibits and schedules. Particular items are omitted in accordance with the
rules and regulations of the Securities and Exchange Commission. For further
information about our company and the common stock offered by this prospectus,
we refer you to the registration statement, including its exhibits and
schedules. You may read and copy the registration statement at the Securities
and Exchange Commission's following locations:

<TABLE>
<S>                        <C>                            <C>
Public Reference Room      New York Regional Office       Chicago Regional Office
Room 1024                  Seven World Trade Center       Citicorp Center
450 Fifth Street, N.W.     Suite 1300                     500 West Madison Street
Washington, DC 20549       New York, NY 10048             Suite 1400
                                                          Chicago, IL 60661-2511
</TABLE>

   You may also obtain copies of the registration statement by mail from the
Public Reference Section of the Securities and Exchange Commission at 450 Fifth
Street, N.W., Judiciary Plaza, Washington, D.C. 20549 or by telephone at 1-800-
SEC-0330. The registration statement is also available to the public from
commercial document retrieval services and at the Securities and Exchange
Commission's World Wide Web site located at http://www.sec.gov. Upon approval
of our common stock for quotation on The Nasdaq Stock Market's National Market,
you will be able to read our filings with the Securities and Exchange
Commission at the office of Nasdaq Operations, 1734 K Street, N.W. Washington,
DC 20006.

   Statements in this prospectus as to the contents of any contract or other
document are not necessarily complete, and in each instance we refer you to the
full text of such contract or document filed as an exhibit to the registration
statement, each such statement being qualified in all respects by such
reference.

   We intend to furnish our stockholders with annual reports containing
financial statements audited by an independent public accounting firm and make
available to our stockholders quarterly reports for the first three quarters of
each fiscal year containing interim unaudited financial information.

                                       73
<PAGE>

                            SPLITROCK SERVICES, INC.

                         INDEX TO FINANCIAL STATEMENTS

<TABLE>
<CAPTION>
                                                                           Page
                                                                           ----
<S>                                                                        <C>
Financial Statements:
  Report of Independent Accountants....................................... F-2
  Balance Sheets as of December 31, 1997 and 1998 and March 31, 1999
   (unaudited)............................................................ F-3
  Statements of Operations and Comprehensive Loss for the Period from
   Inception (March 5, 1997) Through December 31, 1997, the year ended
   December 31, 1998 and the three months ended March 31, 1998 and 1999
   (unaudited)............................................................ F-4
  Statements of Stockholders' Equity (Deficit) for the Period from
   Inception (March 5, 1997) Through December 31, 1998 and the three
   months ended March 31, 1999 (unaudited)................................ F-5
  Statements of Cash Flows for the Period from Inception (March 5, 1997)
   Through December 31, 1997, the year ended December 31, 1998 and the
   three months ended March 31, 1999 (unaudited).......................... F-6
  Notes to Financial Statements........................................... F-7
</TABLE>

                                      F-1
<PAGE>

                       REPORT OF INDEPENDENT ACCOUNTANTS

To the Board of Directors and Stockholders of Splitrock Services, Inc.

   In our opinion, the accompanying balance sheets and the related statements
of operations and comprehensive loss, of cash flows and of changes in
stockholders' equity, present fairly, in all material respects, the financial
position of Splitrock Services, Inc. at December 31, 1997 and 1998, and the
results of its operations and its cash flows for the period from inception
(March 5, 1997) to December 31, 1997 and the year ended December 31, 1998, in
conformity with generally accepted accounting principles. These financial
statements are the responsibility of the Company's management; our
responsibility is to express an opinion on these financial statements based on
our audits. We conducted our audits of these statements in accordance with
generally accepted auditing standards which require that we plan and perform
the audit to obtain reasonable assurance about whether the financial statements
are free of material misstatement. An audit includes examining, on a test
basis, evidence supporting the amounts and disclosures in the financial
statements, assessing the accounting principles used and significant estimates
made by management, and evaluating the overall financial statement
presentation. We believe that our audits provide a reasonable basis for the
opinion expressed above.

PricewaterhouseCoopers LLP

Houston, Texas
March 24, 1999

                                      F-2
<PAGE>

                            SPLITROCK SERVICES, INC.

                                 BALANCE SHEETS
               (in thousands, except share and per share amounts)

<TABLE>
<CAPTION>
                                                    December 31,
                                                  ------------------   March 31,
                                                    1997      1998       1999
                                                  --------  --------  -----------
                                                                      (unaudited)
 <S>                                              <C>       <C>       <C>
                     ASSETS
 Current assets:
   Cash and cash equivalents....................  $  7,710  $ 28,330   $ 23,365
   Unrestricted investments--short term.........       --    120,475     87,793
   Restricted investments--short term...........     3,472    39,476     28,191
   Accounts receivable, net of $0, $537 and
    $537, respectively..........................     4,252     3,205      4,134
   Prepaid expenses and other current assets....       221       480        319
                                                  --------  --------   --------
     Total current assets.......................    15,655   191,966    143,802
 Property and equipment, net....................    38,504    73,899     84,833
 Restricted investments--long term..............       --     19,001     16,165
 Other assets, net..............................       229    11,275     12,265
                                                  --------  --------   --------
                                                  $ 54,388  $296,141   $257,065
                                                  ========  ========   ========
 LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)
 Current liabilities:
   Current maturities of capital lease
    obligations.................................  $ 11,010  $  9,121   $  9,051
   Accounts payable.............................     3,086    21,582     18,467
   Accrued interest payable.....................       --     13,375      6,475
   Accrued liabilities and other current
    liabilities.................................     5,775    15,894     15,204
                                                  --------  --------   --------
     Total current liabilities..................    19,871    59,972     49,197
 Senior notes payable ($261,000 face value net
  of $2,783 and $2,743 unamortized discount,
  respectively (Note 5))........................       --    258,217    258,257
 Capital lease obligations......................    13,110     8,243      5,536
 Note payable to stockholder....................     1,000       --         --
                                                  --------  --------   --------
     Total liabilities..........................    33,981   326,432    312,990
 Commitments and contingencies (Note 7)
 Stockholders' equity (deficit):
   Preferred stock, $.001 par value, 25,000,000
    shares authorized, no shares issued.........       --        --         --
   Common stock, $.001 par value, 150,000,000
    shares authorized, 76,800,000, 82,815,000
    and 82,898,750 shares issued and outstanding
    as of December 31, 1997, 1998, and March 31,
    1999, respectively..........................        77        83         83
   Additional paid-in capital...................    30,451    34,681     34,780
   Common stock warrants........................       --      2,849      2,849
   Accumulated other comprehensive income
    (loss)......................................       --         47       (195)
   Accumulated deficit..........................   (10,121)  (67,951)   (93,442)
                                                  --------  --------   --------
     Total stockholders' equity (deficit).......    20,407   (30,291)   (55,925)
                                                  --------  --------   --------
                                                  $ 54,388  $296,141   $257,065
                                                  ========  ========   ========
</TABLE>

   The accompanying notes are an integral part of these financial statements.

                                      F-3
<PAGE>

                            SPLITROCK SERVICES, INC.

                STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS
               (in thousands, except share and per share amounts)

<TABLE>
<CAPTION>
                            Period from
                             Inception                         Three Months   Three Months
                         (March 5, 1997) to    Year Ended         Ended          Ended
                         December 31, 1997) December 31, 1998 March 31, 1998 March 31, 1999
                         ------------------ ----------------- -------------- --------------
                                                               (unaudited)    (unaudited)
<S>                      <C>                <C>               <C>            <C>
Revenue.................     $   22,708        $   63,611       $   16,494     $   16,352
Operating expenses:
  Splitrock network
   costs................          2,362            32,912            3,955         16,022
  Legacy network costs..         25,804            58,292           12,316         13,029
  Selling, general and
   administrative.......          1,276             6,390              859          2,570
  Depreciation and
   amortization.........          3,500            13,850            2,820          4,635
                             ----------        ----------       ----------     ----------
                                 32,942           111,444           19,950         36,256
                             ----------        ----------       ----------     ----------
Loss from operations....        (10,234)          (47,833)          (3,456)       (19,904)
Other income (expense):
  Interest income.......            348             5,393              107          2,604
  Interest expense......           (235)          (15,390)            (349)        (8,191)
                             ----------        ----------       ----------     ----------
Loss before income
 taxes..................        (10,121)          (57,830)          (3,698)       (25,491)
Provision for income
 taxes..................            --                --               --             --
                             ----------        ----------       ----------     ----------
Net loss................        (10,121)          (57,830)          (3,698)       (25,491)
Other comprehensive
 income (loss):
  Unrealized gain (loss)
   on securities........            --                 47              --            (242)
                             ----------        ----------       ----------     ----------
Comprehensive loss......     $  (10,121)       $  (57,783)      $   (3,698)    $  (25,733)
                             ==========        ==========       ==========     ==========
Net loss per share--
 basic and diluted......     $    (0.24)       $    (0.73)      $    (0.05)    $    (0.31)
                             ==========        ==========       ==========     ==========
Weighted average
 shares--basic and
 diluted................     42,824,000        78,844,000       76,800,000     82,876,000
                             ==========        ==========       ==========     ==========
</TABLE>


   The accompanying notes are an integral part of these financial statements.

                                      F-4
<PAGE>

                            SPLITROCK SERVICES, INC.

                  STATEMENTS OF STOCKHOLDERS' EQUITY (DEFICIT)
          Period From Inception (March 5, 1997) Through March 31, 1999
               (in thousands, except share and per share amounts)

<TABLE>
<CAPTION>
                            Common Stock                        Accumulated
                          ---------------- Additional  Common      Other
                                      Par   Paid-in    Stock   Comprehensive Accumulated
                            Shares   Value  Capital   Warrants    Income       Deficit    Total
                          ---------- ----- ---------- -------- ------------- ----------- --------
<S>                       <C>        <C>   <C>        <C>      <C>           <C>         <C>
Initial capitalization..  28,000,000  $28       --        --         --            --    $     28
 Issuances of Common
  Stock for cash of
  $0.625 per share and
  warrant...............  32,800,000   33   $20,467       --         --            --      20,500
 Conversion of note
  payable to Common
  Stock at $0.625 per
  share.................  16,000,000   16     9,984       --         --            --      10,000
 Net loss...............         --   --        --        --         --       $(10,121)   (10,121)
                          ----------  ---   -------    ------      -----      --------   --------
Balance at December 31,
 1997...................  76,800,000   77    30,451       --         --        (10,121)    20,407
 Unrealized gain on
  securities............         --   --        --        --       $  47           --          47
 Issuance of warrants to
  purchase 2,643,000
  shares of Common Stock
  in connection with
  Senior Notes (Note
  5)....................         --   --        --     $2,849        --            --       2,849
 Exercise of stock
  options and Warrant...   6,015,000    6     4,230       --         --            --       4,236
 Net loss...............         --   --        --        --         --        (57,830)   (57,830)
                          ----------  ---   -------    ------      -----      --------   --------
Balance at December 31,
 1998...................  82,815,000  $83   $34,681    $2,849      $  47      $(67,951)  $(30,291)
 Net loss (unaudited)...         --   --        --        --         --        (25,491)   (25,491)
 Unrealized loss on
  securities
  (unaudited)...........         --   --        --        --        (242)          --        (242)
 Exercise of stock
  options (unaudited)...      83,750  --         99       --         --            --          99
                          ----------  ---   -------    ------      -----      --------   --------
Balance at March 31,
 1999 (unaudited).......  82,898,750  $83   $34,780    $2,849      $(195)     $(93,442)  $(55,925)
                          ==========  ===   =======    ======      =====      ========   ========
</TABLE>


   The accompanying notes are an integral part of these financial statements.

                                      F-5
<PAGE>

                            SPLITROCK SERVICES, INC.

                            STATEMENTS OF CASH FLOWS
                                 (in thousands)

<TABLE>
<CAPTION>
                             Period from
                          Inception (March                     Three Months   Three Months
                          5, 1997) through     Year Ended         Ended          Ended
                          December 31, 1997 December 31, 1998 March 31, 1998 March 31, 1999
                          ----------------- ----------------- -------------- --------------
                                                               (Unaudited)    (Unaudited)
<S>                       <C>               <C>               <C>            <C>
Cash flows from
 operating activities:
 Net loss...............      $(10,121)         $(57,830)        $(3,698)       $(25,491)
 Adjustments to
  reconcile net loss to
  net cash used by
  operating activities:
 Depreciation and
  amortization..........         3,500            13,850           2,820           4,635
 Amortization of debt
  discount and deferred
  financing costs.......           --                467             --              277
Changes in assets and
 liabilities:
 (Increase) decrease in
  accounts receivable,
  net...................        (4,252)            1,047          (2,356)           (929)
 (Increase) decrease in
  prepaid and other
  current assets........          (221)             (259)            (91)            161
 Increase (decrease) in
  accounts payable and
  accrued liabilities...         8,861            28,615          (1,549)         (3,805)
 Increase (decrease) in
  accrued interest
  payable...............           --             13,375             --           (6,900)
                              --------          --------         -------        --------
 Net cash used in
  operating activities..        (2,233)             (735)         (4,874)        (32,052)
                              --------          --------         -------        --------
Cash flows from
 investing activities:
 Purchase of equipment..       (16,969)          (45,261)         (2,508)        (15,292)
 Increase in
  unrestricted
  investments...........           --           (119,462)            --              --
 Use of unrestricted
  investments...........           --                --              --           32,664
 Use of restricted
  investments...........           --                --             (232)         13,897
 Reinvestment of
  interest earned on
  unrestricted
  investments...........           --               (966)            --              --
 Reinvestment of
  interest earned on
  restricted
  investments...........           --             (1,725)            --              --
 Increase in other
  assets................          (229)           (2,098)            --           (1,504)
                              --------          --------         -------        --------
 Net cash used by
  investing activities..       (17,198)         (169,512)         (2,740)         29,765
                              --------          --------         -------        --------
Cash flows from
 financing activities:
 Proceeds from senior
  notes payable and
  warrants issued.......           --            261,000             --              --
 Proceeds from notes
  payable to
  stockholder...........        11,750            10,000           5,000             --
 Repayments of notes
  payable to
  stockholder...........          (750)          (11,000)            --              --
 Proceeds from notes
  payable...............           --              1,477             --              --
 Repayments of notes
  payable...............           --             (1,477)            --              --
 Financing costs
  incurred..............           --             (9,501)            --              --
 Restriction of cash
  under senior note
  agreement.............           --            (56,752)            --              --
 Sale of common stock
  and exercise of stock
  options and warrant...        20,528             4,236             --               99
 Proceeds from sale-
  leaseback of
  equipment.............         1,152               960             --              --
 Principal payments on
  capital lease
  obligations...........        (2,067)          (11,548)         (5,219)         (2,777)
 Restriction of cash
  under credit
  agreement.............        (3,472)            3,472           3,472             --
                              --------          --------         -------        --------
 Net cash provided by
  financing activities..        27,141           190,867           3,253          (2,678)
                              --------          --------         -------        --------
Increase (decrease) in
 cash and cash
 equivalents............         7,710            20,620          (4,361)         (4,965)
Cash and cash
 equivalents:
 Beginning of period....           --              7,710           7,710          28,330
                              --------          --------         -------        --------
 End of period..........      $  7,710          $ 28,330         $ 3,349        $ 23,365
                              ========          ========         =======        ========
Supplemental cash flow
 information:
 Cash paid for
  interest..............      $    235          $  1,536         $   316        $ 14,816
                              ========          ========         =======        ========
 Approximately $18,400
  of the increase in
  accounts payable and
  accrued liabilities at
  December 31, 1998, was
  related to equipment
  purchases.............
Noncash investing and
 financing activities:
 Assumption of capital
  lease obligations and
  other liabilities
  (Note 2)..............      $  5,900          $    --          $   --         $    --
                              ========          ========         =======        ========
 Capital lease
  obligations incurred..      $ 20,916          $  4,792         $ 2,314        $    --
                              ========          ========         =======        ========
 Conversion of note
  payable to stockholder
  into common stock.....      $ 10,000          $    --          $   --         $    --
                              ========          ========         =======        ========
</TABLE>

   The accompanying notes are an integral part of these financial statements.

                                      F-6
<PAGE>

                            SPLITROCK SERVICES, INC.

                         NOTES TO FINANCIAL STATEMENTS
           (amounts in thousands, except share and per share amounts)

1. Organization and Summary of Significant Accounting Policies

   Splitrock Services, Inc. (the "Company") was formed on March 5, 1997 as a
Texas corporation and was reincorporated in Delaware on April 15, 1998. The
Company was formed to build a nationwide, facilities-based telecommunications
network with the goal of providing telecommunications services. The Company has
designed and is in the process of deploying a network based on Asynchronous
Transfer Mode ("ATM") switching technology which it believes will provide high-
quality communications services on a flexible multi-service platform. On June
24, 1997, the Company entered into a four-year service agreement to provide
Internet dial access services to Prodigy (Note 2).

   During 1997, the Company began building its "ATM-to-the-Edge"(TM) network.
The Company expects to have approximately 370 points of presence operational in
the United States upon completion of its network build in mid-1999. This
network is currently supported by two network operating centers equipped with
state-of-the-art network management systems. In July 1998 the Company issued
Senior Notes (Note 5) in order to finance the expansion of the network. Upon
completion of the network build, the Company expects to offer value-added data,
video and voice products to business customers.

   Interim Financial Information. The accompanying unaudited interim condensed
financial statements, as of March 31, 1999, and for the three months ended
March 31, 1999 and 1998, reflect all adjustments (consisting of normal
recurring adjustments) which, in the opinion of management, are necessary for a
fair presentation of the results for the interim periods presented.
Accordingly, they do not include all information and notes required by
generally accepted accounting principles for complete financial statements. The
results for the interim period ended March 31, 1999, are not necessarily
indicative of results to be expected for the entire year ending December 31,
1999, or future operating results. Certain amounts previously reported have
been reclassified in order to ensure comparability among the periods reported.

   The following is a summary of the Company's significant accounting policies:

   Use of Estimates. The preparation of the Company's financial statements in
conformity with generally accepted accounting principles requires management to
make estimates and assumptions that affect the reported amounts of assets,
liabilities, revenues and expenses, as well as disclosures of contingent assets
and liabilities. Because of inherent uncertainties in this process, actual
future results could differ from those expected at the reporting date.
Management believes the estimates are reasonable.

   Cash and Cash Equivalents and Investments. The Company considers highly
liquid investments with an original maturity of three months or less from the
date of purchase to be classified as cash and cash equivalents. Cash and cash
equivalents are stated at cost, which approximates fair value.

   Short-term investments have original maturities of more than three months
and a remaining maturity of less than one year at the date of purchase. At
December 31, 1998, cash equivalents and short-term investments consisted
primarily of money market funds and securities of the highest grade. All short-
term investments have been classified as available for sale under the
provisions of Statement of Financial Accounting Standards No. ("SFAS") 115,
Accounting for Certain Investments in Debt and Equity Securities, and have
various maturity dates which do not exceed one year. Available for sale
securities are carried at fair value, with the unrealized gains and losses, net
of tax, reported as a separate component of stockholders' equity. The cost of
investments sold is determined on the specific identification or the first-in,
first-out method.

                                      F-7
<PAGE>

                            SPLITROCK SERVICES, INC.

                   NOTES TO FINANCIAL STATEMENTS--(Continued)


   The following is a summary of the investments classified as restricted and
unrestricted as of December 31, 1998:

<TABLE>
<CAPTION>
                                                  Gross      Gross
                                      Amortized Unrealized Unrealized   Fair
                                        Cost      Gains      Losses    Value
                                      --------- ---------- ---------- --------
   <S>                                <C>       <C>        <C>        <C>
   Available for sale securities:
     Money market funds.............. $ 23,557     $--       $ --     $ 23,557
     Corporate notes.................  108,496        3        (80)    108,419
     Municipal securities............   12,061      --          (6)     12,055
     U.S. Treasury notes.............   34,791      181        (51)     34,921
                                      --------     ----      -----    --------
                                      $178,905     $184      $(137)   $178,952
                                      ========     ====      =====    ========
</TABLE>

   The following is a summary of the investments classified as restricted and
unrestricted as of March 31, 1999 (unaudited):

<TABLE>
<CAPTION>
                                                  Gross      Gross
                                      Amortized Unrealized Unrealized   Fair
                                        Cost      Gains      Losses    Value
                                      --------- ---------- ---------- --------
   <S>                                <C>       <C>        <C>        <C>
   Available for sale securities:
     Money market funds.............. $ 12,353    $  --     $   --    $ 12,353
     Corporate notes.................   81,931     4,485     (4,626)    81,790
     Municipal securities............    6,000       --          (1)     5,999
     U.S. Treasury notes.............   32,060        47       (100)    32,007
                                      --------    ------    -------   --------
                                      $132,344    $4,532    $(4,727)  $132,149
                                      ========    ======    =======   ========
</TABLE>

   The restricted investment at December 31, 1997 was a three-month time
deposit held as collateral on a letter of credit. In the first quarter of 1998,
the letter of credit was retired with the Company's exercise of its early
purchase option with regard to the related capital lease. The restricted
investments at December 31, 1998 and March 31, 1999, relate to funds held in
escrow to pay future semi-annual interest payments due under the terms of the
Senior Note obligation (Note 5).

   Concentration of Credit Risk. Financial instruments which potentially
subject the Company to concentration of credit risk are primarily cash and cash
equivalents, investments and receivables. The Company's cash investment
policies limit investments to short-term, investment grade instruments with
quality financial institutions. The Company's revenues and its trade receivable
balances for the periods ended December 31, 1997 and 1998, were derived
primarily from services provided to Prodigy, the Company's major customer
during the periods. Any interruption of this relationship could adversely
affect the Company. Management believes that the risk of incurring material
losses related to credit risk is remote.

   Fair Values of Financial Instruments. Due to the short-term nature of the
Company's financial instruments, management believes the carrying values of the
Company's assets, short-term liabilities and lease obligations approximate
their fair values. The fair value of the Company's Senior Notes (Note 5) at
December 31, 1998 and March 31, 1999, approximated $227,000 and $249,255,
respectively, based upon quoted market prices.

   Property and Equipment. Property and equipment are stated at cost.
Depreciation and amortization of telecommunications network equipment,
including assets under capital leases, is provided when placed into service
using the straight-line method over the estimated useful lives of three years
from the date of installation. Shelters are depreciated using the straight-line
method over its estimated useful life of twenty

                                      F-8
<PAGE>

                            SPLITROCK SERVICES, INC.

                   NOTES TO FINANCIAL STATEMENTS--(Continued)

years. Software, furniture, fixtures and office equipment is depreciated using
the straight-line method over the useful lives of the assets, which range from
three to ten years. Equipment acquired from Prodigy is depreciated over its
estimated useful life of nine months to three years.

   Other Assets. Other assets consist primarily of debt issuance costs, net of
accumulated amortization. Amortization is computed using the effective interest
rate method.

   Long-Lived Assets. The Company reviews for the impairment of long-lived
assets whenever events or changes in circumstances indicate that the carrying
amount of an asset may not be recoverable. The carrying amount of a long-lived
asset is considered impaired when anticipated undiscounted cash flows expected
to result from the use of the asset and its eventual disposition are less than
its carrying amount. The Company believes that no material impairment exists at
December 31, 1998.

   Income Taxes. Deferred tax assets and liabilities are determined based on
the temporary differences between the financial statement carrying amounts and
the tax bases of assets and liabilities using the enacted tax rates in effect
in the years in which the differences are expected to reverse. In estimating
future tax consequences, all expected future events are considered with the
exception of enacted changes in the tax law or rates.

   Stock-Based Compensation. The Company has adopted SFAS No. 123, Accounting
for Stock-Based Compensation, for disclosure purposes. Under SFAS No. 123, the
Company measures compensation expense for its stock-based employee compensation
plan using the intrinsic value method prescribed in Accounting Principles Board
("APB") No. 25, Accounting for Stock Issued to Employees. The Company provides
disclosure of the effect on net loss as if the fair value-based method
prescribed in SFAS No. 123 has been applied in measuring compensation expense.

   Revenue Recognition. The Company recognizes revenue when services are
provided and collectibility is deemed probable under its agreement with the
customer. Prodigy was the Company's only customer through December 31, 1997 and
the Company's major customer (99% of revenue) through December 31, 1998 and
March 31, 1999.

   Legacy Network Costs. The Legacy Network refers to the operations related to
certain assets which the Company acquired from Prodigy on July 1, 1997 related
to Prodigy's existing network infrastructure, in order to provide services to
Prodigy while the Splitrock Network is being deployed (Note 2). These costs
contain all expenses incurred in connection with operating and decommissioning
of the Legacy Network. This includes facility fees, line charges for Prodigy
Legacy Network POPs, certain personnel costs, occupancy costs, equipment
maintenance costs and access fees for the IBM Global Services Network.

   Comprehensive Income. Effective January 1, 1998, the Company adopted SFAS
No. 130, Reporting Comprehensive Income, as displayed in its Statements of
Operations for all periods presented. This SFAS establishes standards for
reporting and display of comprehensive income and its components. The Company's
comprehensive income is comprised of net loss and unrealized gains and losses
on available for sale securities.

   Net Loss Per Share. Basic and diluted net loss per share have been computed
in accordance with SFAS No. 128, Earnings Per Share. SFAS No. 128 requires the
Company to report both basic earnings per share, which is based on the weighted
average number of common shares outstanding, and diluted earnings per share,
which is based on the weighted average number of common shares outstanding and
all dilutive potential common shares outstanding. At December 31, 1997, options
to acquire 1,880,000 shares of Common Stock at the weighted-average exercise
price of $0.625 and a warrant to purchase 5,000,000 shares of Common Stock at
$0.625 and at December 31, 1998, options to acquire 3,200,500 shares of Common
Stock at the weighted-average exercise price of $1.30 and warrants to acquire
2,642,613 shares of Common Stock at an exercise price

                                      F-9
<PAGE>

                            SPLITROCK SERVICES, INC.

                   NOTES TO FINANCIAL STATEMENTS--(Continued)

of $0.01 were not included in the computation of diluted earnings per share
because their effect is anti-dilutive. At March 31, 1998, options to acquire
2,345,500 shares of Common Stock at the weighted-average exercise price of
$0.625 and a warrant to acquire 5,000,000 shares of Common Stock at an exercise
price of $0.625 were not included in the computation of diluted earnings per
share because their effect is anti-dilutive. At March 31, 1999, options to
acquire 4,301,250 shares of Common Stock at the weighted average exercise price
of $2.27 and warrants to acquire 2,642,613 shares of Common Stock at an
exercise price of $0.01, were not included in the computation of diluted
earnings per share because their effect is anti-dilutive.

   Segment Reporting. The Company conducts its business within one industry
segment. The Company presents its financial statements to reflect how the "key
operating decision maker" views the business and has made the appropriate
enterprise-wide disclosures in accordance with SFAS No. 131, Disclosures About
Segments of an Enterprise and Related Information.

   New Accounting Pronouncements. In June 1998, the Financial Accounting
Standards Board ("FASB") issued SFAS No. 133 Accounting for Derivative
Instruments and Hedging Activities, which is effective for fiscal years
beginning after June 15, 1999, and establishing accounting and reporting
standards for derivative instruments. The Company has historically not engaged
in derivative instrument activity. The adoption of this standard is not
expected to have a material effect on the Company's financial position or
results of operations.

   In March 1998, the American Institute of Certified Public Accountants
("AICPA") issued Statement of Position ("SOP") 98-1, Accounting for the Costs
of Computer Software Developed or Obtained for Internal Use. This standard
requires that certain costs related to the development or purchase of internal-
use software be capitalized and amortized over the estimated useful life of the
software. This SOP also requires that costs related to the preliminary project
stage, data conversion and the post-implementation/operation stage of an
internal-use computer software development project be expensed as incurred. SOP
98-1 is effective for financial statements issued for fiscal years beginning
after December 15, 1998. The adoption of this Statement did not have a material
effect on the Company's financial position or results of operations.

2. Prodigy Transactions

   On June 24, 1997, the Company entered a four-year Full Service Agreement
with Prodigy, in which the Company agreed to provide certain network services
to Prodigy from July 1, 1997 through June 30, 2001 for the lower of a price per
hour of usage or a price per subscriber as stipulated. Monthly minimum service
charges under this contract are currently $3,500 and will increase to $4,000
and $4,500 on July 1, 1999 and July 1, 2000, respectively. Monthly maximum
service charges are based on average usage per subscriber and the number of
subscribers. Prodigy may terminate the Full Service Agreement without
termination charges in an event of default by the Company; such defaults
include documented failures (without cure) to meet certain network performance
standards. The agreement also allows Prodigy to terminate its arrangement with
the Company at any time upon the payment of a termination charge.

   The Company also entered into a transition agreement with Prodigy in which
Prodigy agreed to provide certain network infrastructure support for the
Company for the period July 1, 1997 through December 31, 1997. The
infrastructure support included the services of selected Prodigy employees and
services provided under vendor arrangements related to the Prodigy network
infrastructure. The costs of these services and other reasonable and customary
charges incurred by Prodigy in connection with the continued operations of the
network during this transition period are included in Legacy Network costs. The
Company assumed no contractual liabilities of any services related to Prodigy's
existing network infrastructure as part of the transition agreement.

   Also on June 24, 1997, the Company entered into a Definitive Agreement with
Prodigy pursuant to which the Company acquired selected data transmission
equipment from Prodigy. In consideration for the equipment, the Company assumed
approximately $5,900 in equipment lease obligations and other liabilities.

                                      F-10
<PAGE>

                            SPLITROCK SERVICES, INC.

                   NOTES TO FINANCIAL STATEMENTS--(Continued)


3. Property and Equipment

   Property and equipment consisted of the following:

<TABLE>
<CAPTION>
                                                  December 31,
                                                -----------------   March 31,
                                                 1997      1998       1999
                                                -------  --------  -----------
                                                                   (unaudited)
   <S>                                          <C>      <C>       <C>
   Telecommunications network equipment and
    shelters................................... $ 3,464  $ 43,275   $ 51,778
   Software....................................      94     2,186      2,682
   Furniture, fixtures and office equipment....     --      1,749      1,775
   Telecommunications network equipment under
    construction...............................  12,248    13,289     19,556
                                                -------  --------   --------
                                                 15,806    60,499     75,791
   Less--accumulated depreciation..............    (103)  (10,392)   (13,007)
                                                -------  --------   --------
     Purchased property and equipment, net.....  15,703    50,107     62,784
                                                -------  --------   --------
   Leased telecommunications network
    equipment..................................  13,648    29,102     29,102
   Leased office equipment.....................     388     1,496      1,496
   Leased telecommunications network equipment
    under construction.........................  12,162       --         --
                                                -------  --------   --------
                                                 26,198    30,598     30,598
   Less--accumulated amortization..............  (3,397)   (6,806)    (8,549)
                                                -------  --------   --------
     Leased property and equipment, net........  22,801    23,792     22,049
                                                -------  --------   --------
   Property and equipment, net................. $38,504  $ 73,899   $ 84,833
                                                =======  ========   ========

4. Accrued Liabilities

   Accrued liabilities consisted of the following:

<CAPTION>
                                                  December 31,
                                                -----------------   March 31,
                                                 1997      1998       1999
                                                -------  --------  -----------
                                                                   (unaudited)
   <S>                                          <C>      <C>       <C>
   Telecommunications network equipment and
    shelters................................... $   --   $  9,900   $  7,994
   Access and transmission telecommunications
    line costs (Note 7)........................      41     3,172      4,307
   Other.......................................   5,734     2,822      2,903
                                                -------  --------   --------
     Accrued liabilities....................... $ 5,775  $ 15,894   $ 15,204
                                                =======  ========   ========

5. Indebtedness

   The components of indebtedness are summarized as follows:

<CAPTION>
                                                  December 31,
                                                -----------------   March 31,
                                                 1997      1998       1999
                                                -------  --------  -----------
                                                                   (unaudited)
   <S>                                          <C>      <C>       <C>
   Senior Notes................................ $   --   $258,217   $258,257
   Capital lease obligations...................  24,120    17,364     14,587
   Note payable to stockholder.................   1,000       --         --
                                                -------  --------   --------
                                                 25,120   275,581    272,844
   Less--current maturities.................... (11,010)   (9,121)    (9,051)
                                                -------  --------   --------
                                                $14,110  $266,460   $263,793
                                                =======  ========   ========
</TABLE>

                                      F-11
<PAGE>

                            SPLITROCK SERVICES, INC.

                   NOTES TO FINANCIAL STATEMENTS--(Continued)

   On July 24, 1998, the Company sold 261,000 units consisting of $261,000
principal amount of 11 3/4% Senior Notes due 2008 ("Senior Notes") and warrants
to purchase 2,642,613 shares of common stock ("the Senior Notes Offering").
Upon issuance, the Senior Notes were recorded in the Company's financial
statements net of a $2,849 discount. The discount was attributable to the
Company's estimate of the value of the warrants based on an independent third
party valuation. The discount is amortized as a component of interest expense
over the life of the Senior Notes using the effective interest rate method.
This amortization will result in an increase in the financial statement balance
of the Senior Notes to a $261,000 face value by 2008.

   Upon the occurrence of a change of control (as defined in the Indenture for
the Senior Notes) the Company will be required to make an offer to repurchase
all Senior Notes properly tendered at a price equal to 101% of the principal
amount plus accrued and unpaid interest to the date of repurchase. The
indenture also provides for redemption of the Senior Notes at any time, in
whole or in part, on or after July 15, 2003 at a premium through July 15, 2005.
In addition, on or prior to July 15, 2001, the Company may redeem up to 35% of
the original aggregate principal amount of the Senior Notes at a premium with
the proceeds of one or more equity offerings.

   The Senior Note indenture also restricts the Company's ability to incur
additional indebtedness, to create liens or other encumbrances, to make certain
payments, investments, loans and guarantees and to sell or otherwise dispose of
a substantial portion of assets to, or merge or consolidate with, an
unaffiliated entity.

   In connection with the Senior Notes Offering, the Company repaid $1,477
outstanding under a credit facility and refinanced $11,000 of indebtedness owed
to Linsang Partners L.L.C. ("Linsang"), a stockholder of the Company. In
connection with the refinancing, Linsang acquired 11,000 units in the Senior
Notes Offering. The net proceeds to the Company, after the Senior Notes
Offering expenses and retirement and refinancing of debt, approximated
$239,000.

   In November 1998, the Senior Notes were exchanged in an offering registered
under the Securities Act of 1933 for $261,000 in principal amount of Series B
Senior Notes, which have substantially the same terms as the Senior Notes,
except that there is no restriction on transferability.

   Capital leases require payments on a monthly basis over periods ranging from
24 to 48 months, with implicit interest rates of 9% to 12%.

   In December 1997, the Company borrowed $1,000 from Linsang. The unsecured
note had a stated rate of interest of 9.75% and provided for monthly interest
payments beginning February 1, 1998, with the principal due on demand after
December 31, 1998, and maturing December 31, 2002. During 1998, the Company
borrowed $10,000 from Linsang on terms substantially the same as the previous
note. The Linsang notes were refinanced in July 1998, in connection with the
Senior Notes Offering, as stated above.

6. Income Taxes

   A provision for income taxes for the periods ended December 31, 1997 and
1998 has not been recognized as the Company had operating losses for both tax
and financial reporting purposes. Due to the uncertainty
surrounding the timing of realizing the benefits of its favorable tax
attributes in future tax returns, the Company has recorded a full valuation
allowance against its net deferred tax asset.

                                      F-12
<PAGE>

                            SPLITROCK SERVICES, INC.

                   NOTES TO FINANCIAL STATEMENTS--(Continued)


   Deferred tax assets (liabilities) consist of the following:

<TABLE>
<CAPTION>
                                                                December 31,
                                                              -----------------
                                                               1997      1998
                                                              -------  --------
   <S>                                                        <C>      <C>
   Net operating loss carryforward........................... $ 3,248  $ 22,465
   Depreciation..............................................     167     3,325
   Other.....................................................      21       429
                                                              -------  --------
     Deferred tax assets.....................................   3,436    26,219
                                                              -------  --------
   Leases....................................................     --       (474)
                                                              -------  --------
     Deferred tax liabilities................................     --       (474)
                                                              -------  --------
   Net deferred tax assets...................................   3,436    25,745
   Valuation allowance.......................................  (3,436)  (25,745)
                                                              -------  --------
   Net deferred tax assets................................... $   --   $    --
                                                              =======  ========
</TABLE>
   The Company's net operating loss carryforward totaled approximately $59,000
at December 31, 1998, of which approximately $9,500 expires in 2012 and the
remainder expires in 2013. Certain changes in ownership of the Company could
result in limitations on the Company's ability to utilize the losses.

7. Commitments and Contingencies

   The Company leases office space, equipment facilities and equipment under
noncancelable operating and capital leases expiring through the year 2003. Rent
expense for noncancelable operating leases amounted to $218 in 1997 and $663 in
1998.

   Future minimum payments by year and in the aggregate related to
noncancelable operating and capital leases at December 31, 1998 are:

<TABLE>
<CAPTION>
                                                    Capital  Operating
                                                    Leases    Leases    Total
                                                    -------  --------- -------
   <S>                                              <C>      <C>       <C>
   1999............................................ $10,576   $1,049   $11,625
   2000............................................   7,101      903     8,004
   2001............................................     746      801     1,547
   2002............................................      37      422       459
   2003............................................     --       265       265
                                                    -------   ------   -------
     Total minimum lease payments..................  18,460   $3,440   $21,900
                                                              ======   =======
     Less amount representing interest.............  (1,096)
                                                    -------
   Present value of minimum capital lease
    payments....................................... $17,364
                                                    =======
</TABLE>

   In March 1999, the Company signed a lease for sixty-nine thousand square
feet of additional office space, which the Company expects to be available for
occupancy in August 1999. In connection with this lease, the Company issued a
$850 letter of credit.

   The Company leases telephone lines from competitive local exchange
suppliers, interexchange carriers and long distance telephone companies
primarily for access and transport purposes ("line costs"). These line costs
are leased under both cancelable and noncancelable operating leases over
periods ranging from month-to-month to five years and are included in Splitrock
network costs on the statement of operations. The Company has commitments to
certain of these telecommunication vendors to meet minimum usage volumes.
Additionally,

                                      F-13
<PAGE>

                            SPLITROCK SERVICES, INC.

                   NOTES TO FINANCIAL STATEMENTS--(Continued)

the Company is subject to cancellation penalties which could become applicable
upon termination of a number of these agreements. The cancellation penalties
typically require a payment of a percentage of the remaining amounts due under
the contract, depending on the year in which cancellation may occur.

   Line costs included in the Splitrock network costs were $547 and $22,617
during the period from inception (March 5, 1997) to December 31, 1997 and the
year ended December 31, 1998, respectively. Line costs incurred during the
period from inception (March 5, 1997) to December 31, 1997 and the year ended
December 31, 1998, comprise a substantial portion of the Legacy network costs.

   The Company is in the process of resolving certain issues related to the
collection and remittance of certain taxes. The Company believes resolution of
these issues will not have a material adverse effect on the Company's financial
condition or results of operations.

   The Company had an outstanding letter of credit in the amount of $3,472 as
of December 31, 1997. This letter of credit was maintained as security for
performance under a certain capital lease obligation and was retired in the
first quarter of 1998 with the Company's exercise of its early purchase option
on the related capital lease.

   The Company has an agreement with a telecommunication supplier to provide
certain installation services for the Company. The minimum amount of services
for which the Company is required to pay is approximately $1,300. As of
December 31, 1998, the Company has incurred approximately $700 of such amount
in connection with this agreement.

8. Equity Transactions

   The Company effected a 100-for-1 stock split on June 3, 1997 and a 10-for-1
stock split on August 8, 1997. All share amounts included in these financial
statements have been adjusted to reflect the effect of the stock splits.

   Warrants issued in connection with the Company's Senior Note Offering are
exercisable at $.01 per share at any time on or after July 26, 1999 through
July 15, 2008 for 2,642,613 shares of Common Stock.

9. Stock Options

   The Company's 1997 Incentive Share Plan (the "Plan") provides that options
to purchase up to 20,000,000 shares of common stock may be granted to certain
directors, employees or consultants of the Company. Options under the Plan have
a term of ten years and are granted with an exercise price equivalent to
estimated fair market value at the date of grant which has been determined by
the Board of Directors for periodic intervals based upon actual issuances of
shares in exchange for cash, third party appraisals and significant events
effecting the value of the Company. Individual option grants vest over time,
based upon a schedule approved by the Board of Directors, which is generally
four years. All of the Company's common stock options vest automatically upon a
change in control of the Company, as defined in the Plan.

                                      F-14
<PAGE>

                            SPLITROCK SERVICES, INC.

                   NOTES TO FINANCIAL STATEMENTS--(Continued)


   The following summarizes the activity for the Plan:

<TABLE>
<CAPTION>
                                    1997               1998          March 31, 1999
                             ------------------ ------------------ ------------------
                                       Weighted           Weighted           Weighted
                                       Average            Average            Average
                                       Exercise           Exercise           Exercise
                              Shares    Price    Shares    Price    Shares    Price
                             --------- -------- --------- -------- --------- --------
                                                                      (unaudited)
   <S>                       <C>       <C>      <C>       <C>      <C>       <C>
   Options outstanding at
    beginning of fiscal pe-
    riod...................        --     --    1,880,000  $0.63   3,200,500  $1.30
     Granted...............  1,880,000  $0.63   2,563,500  $1.67   1,200,500  $4.80
     Exercised.............        --     --    1,015,000  $1.09      83,750  $1.08
     Canceled..............        --     --      228,000  $0.84      16,000  $3.35
                             ---------          ---------          ---------
   Options outstanding at
    end of period..........  1,880,000  $0.63   3,200,500  $1.30   4,301,250  $2.27
</TABLE>

   The following table summarizes information about the Company's stock options
outstanding at December 31, 1998:

<TABLE>
<CAPTION>
                              Options Outstanding          Options Exercisable
                       ---------------------------------- ---------------------
                          Number     Weighted-               Number
                       Outstanding    Average    Weighted Exercisable  Weighted
        Range of            At       Remaining   Average       at      Average
        Exercise       December 31, Contractual  Exercise December 31, Exercise
         Prices            1998     Life (Years)  Price       1998      Price
        --------       ------------ ------------ -------- ------------ --------
   <S>                 <C>          <C>          <C>      <C>          <C>
   $0.63..............  2,120,500       8.71      $0.63     793,375     $0.63
   1.10...............    350,000       9.37       1.10       1,250      1.10
   3.35...............    730,000       9.75       3.35         --        --
                        ---------                           -------
   $0.63--$3.35.......  3,200,500       9.02      $1.30     794,625     $0.63
</TABLE>

   In October 1996, the FASB issued SFAS No. 123, "Accounting for Stock-Based
Compensation," which allows the Company to account for its employee stock-based
compensation plans under APB No. 25 and the related interpretations. According
to APB No. 25, deferred compensation is recorded for stock-based compensation
grants based on the excess of the market value of the common stock on the
measurement date over the exercise price. The deferred compensation is
amortized over the vesting period of each unit of stock-based compensation
grant. If the exercise of the stock-based compensation grants is equal to the
market price of the Company's stock on the date of grant, no compensation
expense is recorded.

   During the year ended December 31, 1998, the Company recognized compensation
expense of $46 for options granted at a discount from the then estimated fair
market value of the Company's Common Stock.

   Had compensation cost for the Company's stock option plan been determined
based on the estimated fair market value at the grant date, consistent with the
provisions of SFAS No. 123, the Company's pro forma net loss would have been as
follows:

<TABLE>
<CAPTION>
                                                        Pro forma
                                                       Period from
                                                        Inception
                                                        (March 5,
                                                          1997)      Pro forma
                                                         through     Year ended
                                                       December 31, December 31,
                                                           1997         1998
                                                       ------------ ------------
   <S>                                                 <C>          <C>
   Net loss...........................................   $(10,141)    $(58,254)
   Net loss per share--basic and diluted..............      (0.24)       (0.74)
</TABLE>

                                      F-15
<PAGE>

                            SPLITROCK SERVICES, INC.

                   NOTES TO FINANCIAL STATEMENTS--(Continued)


   Options granted in 1997 and 1998 had weighted-average fair values of $0.077
and $1.00, respectively. For purposes of estimating the fair value of options
granted, the Company used no future dividends, used average U.S. government
security interest rates for its risk-free interest rates of 5.80% and 4.39%,
assumed no volatility and 70.5% volatility, and assumed expected life of the
options of five and four years in 1997 and 1998, respectively.

10. Related Party Transactions

   The Company's chairman of the Board of Directors (the "Chairman") was also
the Vice Chairman and a director of Yurie Systems, Inc. ("Yurie"), a principal
supplier of the Company until its acquisition by Lucent Technologies. The
Company purchased from Yurie approximately $11,000 in equipment through
December 31, 1997 and approximately $1,400 during the year ended December 31,
1998.

   The Company also retained Yurie to perform assembly services related to the
deployment of network equipment to the field during 1997. The Company incurred
approximately $1,500 for these services of which approximately $990 were
expensed in 1997. As of December 31, 1997 and 1998, the Company owed $1,461 and
$0 to Yurie, respectively.

   Linsang, an affiliate of the Chairman, loaned $1,000 to the Company for the
purchase of certain network equipment in December 31, 1997. During 1998, the
affiliate made further advances of $10,000 under this agreement. The unsecured
notes had a stated rate of interest of 9.75% and provided for monthly interest
payments beginning February 1, 1998, with the principal due on demand after
December 31, 1998, and maturing December 31, 2002. The Notes were refinanced in
July 1998, in connection with the Senior Notes Offering (Note 5).

   A director of the Company exercised an option to purchase 1,000,000 shares
of the Company Common Stock for $1,100 in June 1998.

   In September 1997, Orient Star Holdings, a wholly-owned subsidiary of Carso
Global Telecom, S.A. de C.V. (the controlling stockholder of Prodigy),
purchased 20,000,000 shares of the Company for $0.625 per share and paid $0.1,
for a warrant to purchase an additional 5,000,000 shares of the Company through
September 18, 1998 for $0.625 per share. The warrants were exercised in
September 1998 (Note 8).

11. Subsequent Events (unaudited)

   In April 1999, the Company entered into a cost sharing agreement with a
national telecommunications provider (the Provider). The agreement grants the
Company an exclusive indefeasible right of use (IRU) in 4 dark fibers in the
nationwide fiber optic communication system currently under construction by the
Provider with an option to acquire the indefeasible rights to use an additional
12 dark fibers. The Company made an initial payment of $11,200 to the Provider
and is required to make additional payments as dark fiber segments are
accepted, which is expected to occur from the end of 1999 through the first
quarter of 2001. The Company expects to incur approximately $150,000 in capital
expenditures over the next three years related to its current network fiber
optic deployment plans, including the electronic equipment necessary to operate
its fiber optic network. The Company does not currently expect to deploy all 16
dark fiber strands in the next two years. The Company may terminate the
agreement prior to October 31, 1999, under certain circumstances, but the
Company would forfeit up to 80% of its initial payment to the Provider if it
exercises that termination right.

                                      F-16
<PAGE>

                               GLOSSARY OF TERMS

   Set forth below are definitions of some of the technical terms used in this
prospectus.

ATM..........................  Asynchronous Transfer Mode. A communications
                               standard that provides for information transfer
                               in the form of fixed-length cells of 53 bytes
                               each. The ATM format can be used to deliver
                               data, video and voice traffic at varying rates.

backbone.....................  A centralized high-speed network that
                               interconnects smaller, independent networks.

bandwidth....................  The number of bits of information which can
                               move over a communications medium in a given
                               amount of time; the capacity of a
                               telecommunications circuit/network to carry
                               data, video and voice information. Typically
                               measured in Kbps and Mbps. Bandwidth from
                               public networks is typically available to
                               business and residential end-users in
                               increments from 56 Kbps to T-3.

competitive local exchange     A category of telephone service provider that
carrier......................  offers services similar to the former monopoly
                               local telephone company and other types of
                               telecommunications.

dark fiber...................  Fiber which does not have connected to it the
                               electronics required to transmit data on that
                               fiber.

digital subscriber line......  A high-speed data delivery technology that uses
                               standard copper wires and is the main broadband
                               alternative to cable modems.

DS-3 or T-3..................  A data communications line capable of
                               transmitting data at 45 Mbps

Ethernet.....................  A local area network protocol which supports
                               data transfer rates of up to 10 Mbps.

Extranet.....................  An Intranet expanded to include selected
                               business partners through secured links on the
                               Internet.

56k..........................  Equivalent to a single high-speed telephone
                               service line; capable of transmitting one voice
                               call or 56 Kbps of data. Currently in
                               widespread use by medium and large businesses
                               primarily for entry level high-speed data and
                               very low-speed video applications.

frame relay..................  A communications standard that is optimized for
                               efficient switching of variable-length data
                               packets.

host.........................  A computer with direct access to the Internet.

incumbent local exchange       The local carrier exchange that was the
carrier......................  monopoly carrier, prior to the opening of local
                               exchange services to competition.

Internet.....................  An open global network of interconnected
                               commercial, educational and governmental
                               computer networks which utilize TCP/IP, a
                               common communications protocol.

Internet dial access.........
                               Communications circuit that is established by a
                               switched-circuit connection using the telephone
                               network.

                                      G-1
<PAGE>

intranet....................   A TCP/IP based network and Web site which is
                               securely isolated from the Internet and serves
                               the internal needs of a company or institution.

IP..........................   Internet protocol. Network protocols that allow
                               computers with different architectures and
                               operating system software to communicate with
                               other computers on the Internet.

ISDN........................   Integrated Services Digital Network. A network
                               that provides digital, voice and data services
                               through a single medium.

Internet service               Companies formed to provide access to the
providers...................   Internet to consumers and business customers
                               via local networks.

interexchange carrier.......   A telecommunications company that provides
                               telecommunications services between local
                               exchanges on an interstate or intrastate basis.

IRUs........................   Indefeasible rights of use in network bandwidth
                               capacity.

K or Kbps...................   Kilobits per second. A measure of digital
                               information transmission rates. One kilobit
                               equals 1,000 bits of digital information.
                               Normally, 10 bits are used for each alpha-
                               numeric character.

local area network..........   A data communications network designed to
                               interconnect personal computers, workstations,
                               minicomputers, file servers and other
                               communications and computing devices within a
                               localized environment.

local exchange carrier......   A telecommunications company that provides
                               telecommunications services in a geographic
                               area in which calls generally are transmitted
                               without toll charges. Local exchange carriers
                               include both regional Bell operating companies
                               and competitive local exchange carriers.

Mbps........................   Megabits per second. A measure of digital
                               information transmission rates. One megabit
                               equals 1,000 kilobits.

modem.......................   A device for transmitting information over an
                               analog communications channel such as a
                               telephone circuit.

network.....................   A collection of distributed computers which
                               share data and information through inter-
                               connected lines of communication.

OC-3........................   A high capacity optical data communications
                               line capable of transmitting data at 155 Mbps.

OC-48.......................   A high capacity optical data communications
                               line capable of transmitting data at 2488 Mbps.

peering.....................   The commercial practice under which nationwide
                               Internet service providers exchange each
                               other's traffic, in most cases without the
                               payment of settlement charges.

POPs........................   Points-of-Presence. An interlinked group of
                               modems, routers and other computer equipment,
                               located in a particular city or metropolitan
                               area, that allows a nearby subscriber to access
                               the Internet through a local telephone call or
                               using a short-distance permanent data circuit.

                                      G-2
<PAGE>

PRI..........................  Primary Rate Interface. ISDN interface to
                               primary rate access.

protocol.....................  A formal description of message formats and the
                               rules two or more machines must follow in order
                               to communicate.

regional Bell operating        One of the local exchange carriers created by
company......................  the divestiture of the local exchange business
                               by AT&T. These include BellSouth, Bell
                               Atlantic, Ameritech, US West, SBC, and PacTel.

route mile...................  One mile of actual geographic length of the
                               high capacity telecommunications fiber route.

router.......................  A device that receives and transmits data
                               packets between segments in a network or
                               different networks.

server.......................  Software that allows a computer to offer a
                               service to another computer. Other computers
                               contact the server program by means of matching
                               client software. The term also refers to the
                               computer on which server software runs.

SS7..........................  Signaling System No. 7. The current(seventh)
                               version of the protocol used by switches to
                               establish a connection or call feature between
                               central offices.

T-1..........................  A data communications line capable of
                               transmitting data at 1.5 Mbps.

T-3 or DS-3..................  A data communications line capable of
                               transmitting data at 45 Mbps.

virtual private network......  A network providing secure transmission of IP
                               traffic through the Internet.

Web or World Wide Web........  A network of computer servers that uses a
                               special communications protocol to link
                               different servers throughout the Internet and
                               permits communication of graphics, video and
                               sound.

                                      G-3
<PAGE>

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

   Prospective investors may rely only on the information contained in this
prospectus. Neither Splitrock Services, Inc. nor any underwriter has authorized
anyone to provide prospective investors different or additional information.
This prospectus is not an offer to sell nor is it seeking an offer to buy these
securities in any jurisdiction where the offer or sale is not permitted. The
information contained in this prospectus is accurate only as of the date of
this prospectus, regardless of the time of delivery of this prospectus or of
any sale of these securities.
   No action is being taken in any jurisdiction outside the United States to
permit a public offering of the common stock or possession or distribution of
this prospectus in any such jurisdiction. Persons who come into possession of
this prospectus in jurisdictions outside the United States are required to in-
form themselves about and to observe the restrictions of that jurisdiction re-
lated to this offering and the distribution of this prospectus.

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

                               TABLE OF CONTENTS

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

<TABLE>
<CAPTION>
                                                                            Page
                                                                            ----
<S>                                                                         <C>
Prospectus Summary.........................................................   2
Risk Factors...............................................................   8
Use of Proceeds............................................................  21
Dividend Policy............................................................  21
Capitalization.............................................................  22
Dilution...................................................................  23
Selected Financial Data....................................................  24
Management's Discussion and Analysis
 of Financial Condition and Results
 of Operations.............................................................  26
Business...................................................................  36
Management.................................................................  54
Certain Transactions.......................................................  61
Principal Stockholders.....................................................  62
Description of Long-Term Indebtedness......................................  63
Description of Capital Stock...............................................  64
Shares Eligible for Future Sale............................................  66
U.S. Federal Tax Considerations for
 Non-U.S. Holders..........................................................  67
Underwriting...............................................................  71
Legal Matters..............................................................  73
Experts....................................................................  73
Where You Can Find More Information........................................  73
Index to Financial Statements.............................................. F-1
Glossary of Terms.......................................................... G-1
</TABLE>

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

                                [Splitrock Logo]

                                      Shares
                                  Common Stock

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

                                   PROSPECTUS

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



                            Bear, Stearns & Co. Inc.

                           Credit Suisse First Boston

                             Prudential Securities




                                     , 1999

- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>

                                    PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

Item 13. Other Expenses of Issuance and Distribution.

   The following table sets forth expenses and costs payable by Splitrock
(other than underwriting discounts and commissions) expected to be incurred in
connection with the issuance and distribution of the securities described in
this registration statement. All amounts are estimated except for the
Securities and Exchange Commission's registration fee and the National
Association of Securities Dealers' filing fee.

<TABLE>
<CAPTION>
                                                                        Amount
                                                                        -------
      <S>                                                               <C>
      Registration fee under Securities Act............................ $47,955
      NASD filing fee..................................................  17,750
      The Nasdaq National Market fees..................................    *
      Legal fees and expenses..........................................    *
      Accounting fees and expenses.....................................    *
      Printing and engraving expenses..................................    *
      Registrar and transfer agent fees................................    *
      Miscellaneous expenses...........................................
                                                                        -------
      Total............................................................ $
                                                                        =======
        *To be filed by amendment.
</TABLE>

Item 14. Indemnification of Directors and Officers.

   Splitrock is incorporated under the laws of the State of Delaware. Section
145 of the General Corporation Law of the State of Delaware (Section 145)
provides that a Delaware corporation may indemnify any person who was or is a
party or is threatened to be made a party to any threatened, pending or
completed action, suit or proceeding, whether civil, criminal, administrative
or investigative, by reason of the fact that such person is or was an officer,
director, employee or agent of such corporation, or is or was serving at the
request of such corporation as a director, officer, employee or agent of
another corporation, partnership, joint venture, trust or enterprise, including
an employee benefit plan. The indemnity may include expenses, such as
attorneys' fees, as well as judgments, fines and amounts paid in settlement
actually and reasonably incurred by such person in connection with such action,
suit or proceeding. The termination of any action, suit, or proceeding by
judgment, order, settlement, conviction or upon a plea of nolo contendere or
its equivalent, shall not, of itself, create a presumption that the person did
not act in good faith and in a manner which he reasonably believed to be in or
not opposed to the best interests of the corporation, and, with respect to any
criminal action or proceeding, had reasonable cause to believe that his conduct
was unlawful. Section 145 also provides that to the extent that a director,
officer, employee or agent of the corporation has been successful on the merits
or otherwise in defense of any action, suit or proceeding referred to above, or
in defense of any claim, issue or matter therein, the corporation must
indemnify him against expenses, including attorneys' fees, actually and
reasonably incurred by him in connection therewith. Section 145 further
provides that any indemnification, unless ordered by a court, must be made only
as authorized in the specific case upon a determination that indemnification of
the director, officer, employee or agent is proper in the circumstances because
he has met the applicable standard of conduct set forth above. Section 145
further provides that a corporation may purchase and maintain liability
insurance covering such liability and expenses under the provisions described
in the preceding paragraphs. Splitrock maintains liability insurance covering
its directors and officers.

   Section 102(b)(7) of the General Corporation Law of the State of Delaware
permits a Delaware corporation to include a provision in its Certificate of
Incorporation eliminating or limiting the personal liability of a director to
the corporation or its stockholders for monetary damages for breach of
fiduciary duty as a director, except (i) for any breach of the director's duty
of loyalty to the corporation or its stockholders, (ii) for

                                      II-1
<PAGE>

acts or omissions not in good faith or which involve intentional misconduct or
a knowing violation of law,(iii) pursuant to Section 174 of the General
Corporation Law of the State of Delaware (providing for liability of directors
for unlawful payment of dividends or unlawful stock purchases or redemptions),
or (iv) for any transaction from which the director derived an improper
personal benefit. Article VIII of Splitrock's Certificate of Incorporation
eliminates liability of directors of Splitrock to Splitrock or its shareholders
for monetary damages for breach of fiduciary duty to the extent permitted by
Section 102(b)(7) of the General Corporation Law of the State of Delaware.

   Article IX of Splitrock's Certificate of Incorporation requires Splitrock to
indemnify Splitrock's directors and officers to the extent permitted under
Section 145.

   Article VII of Splitrock's Bylaws also provides that Splitrock shall
indemnify any person who was or is a party or is threatened to be made a party
to any threatened, pending, or completed action, suit, or proceeding whether
civil, criminal, administrative, or investigative, by reason of the fact that
he is or was a director or officer of Splitrock, or is or was serving at the
request of Splitrock as a director, officer, employee or agent of another
corporation, partnership, joint venture, trust, or other enterprise, in
accordance with provisions corresponding to Section 145. Further, Splitrock's
Bylaws provide that any person, other than an officer or director, who was or
is a party or is threatened to be made a party to any threatened, pending, or
completed action, suit or proceeding, whether civil, criminal, administrative,
or investigative, by reason of the fact that he is or was an employee or agent
of Splitrock, or was serving at the request of Splitrock as a director,
officer, employee or agent of another corporation, partnership, joint venture,
trust, or other enterprise, and who desires indemnification shall make written
application for such indemnification to the Board of Directors for its
determination that indemnification is appropriate, and if so, to what extent.

   Splitrock's Bylaws also provide that Splitrock may indemnify, to the extent
of the provisions set forth therein, any person other than an officer or
director who was or is a party or is threatened to be made a party to any
threatened, pending or completed action, suit or proceeding, whether civil,
criminal, administrative or investigative, by reason of the fact that he is or
was an employee or agent of Splitrock, or was serving at the request of
Splitrock as a director, officer, employee or agent of another corporation,
partnership, joint venture, trust or other enterprise, if such person makes
written application for such indemnification to the Splitrock Board and the
Splitrock Board determines that indemnification is appropriate and the extent
thereof. Splitrock's Bylaws further provide that the indemnification described
therein is not exclusive, and shall not exclude any other rights to which the
person seeking to be indemnified may be entitled under statute, any bylaw,
agreement, vote of shareholders or disinterested directors, or otherwise, both
as to action in his official capacity and to his action in another capacity
while holding such office.

   The above discussion of Section 145 and of Splitrock's Certificate of
Incorporation and Bylaws is not intended to be exhaustive and is respectively
qualified in its entirety by such statute, the Certificate of Incorporation and
the By-laws.

   Splitrock intends to obtain primary and excess insurance policies insuring
its directors and officers and those of its subsidiaries against certain
liabilities they may incur in their capacity as directors and officers. Under
such policies, the insurer, on behalf of Splitrock, may also pay amounts for
which Splitrock has granted indemnification to the directors or officers.

   Additionally, reference is made to the Underwriting Agreement filed as
Exhibit 1.1 hereto, which provides for indemnification by the Underwriters of
Splitrock, its directors and officers who sign the registration statement and
persons who control Splitrock, under certain circumstances.

Item 15. Recent Sales of Unregistered Securities.

   Splitrock has issued securities in the following transactions, each of
which, unless otherwise indicated, was intended to be exempt from the
registration requirements of the Securities Act by virtue of Section 4(2) or
Regulation D thereunder.

                                      II-2
<PAGE>

   In March 1997, the Company issued shares to its founders, William R. Wilson
and Kwok L. Li, in the amounts of 600 and 400 shares of common stock,
respectively (600,000 and 400,000 shares following two subsequent stock
splits). In June of 1997 Mr. Wilson and Mr. Li were each granted additional
shares for services rendered in the amounts of 1,640,000 shares and 1,060,000
shares, respectively (16,400,000 and 10,600,000 on a post-split basis).

   In August 1997, Linsang acquired 12,000,000 shares in a private transaction
for $7,500,000 and converted a $10,000,000 note into an additional 16,000,000
shares. In that same month, Roy Wilkens purchased 800,000 shares in a private
transaction for $500,000.

   In September 1997, Orient Star acquired 20,000,000 shares and a warrant to
acquire an additional 5,000,000 shares exercisable on or before September 18,
1998 in a private transaction for $12,500,100.

   In June 1998, Clark McLeod acquired 1,000,000 shares pursuant to the
exercise of an option issued in a private offering at an aggregate exercise
price of $1,100,000.

   On July 24, 1998, the Company offered and sold 261,000 Units to a broker-
dealer, of which 250,000 Units were resold to "qualified institutional buyers"
(as defined in Rule 144A under the Securities Act) and 11,000 Units to Linsang,
a stockholder of the Company. Each Unit consisted of an 11 3/4% Senior Note due
2008 ("Senior Notes") in the principal amount of $1,000 and a Warrant to
purchase 10.125 shares of Common Stock of the Company. On August 12, 1998, the
Company filed an exchange offer registration statement offering to exchange a
substantially similar 11 3/4% Series B Senior Note due 2008 ("Series B Notes")
for each outstanding 11 3/4% Senior Note due 2008 held by a qualified
institutional buyer. In October 1998, Linsang exchanged its Senior Notes for
Series B Notes in a private offering.

   From July 1997 through April 30, 1999, the Company granted options under its
1997 stock option plan to purchase an aggregate of 6,064,300 shares of Common
Stock at exercise prices ranging from $0.625 per share to $5.50 per share to
employees and officers and directors. The Company issued an aggregate of
1,115,500 shares of Common Stock pursuant to option exercises under the 1997
Plan at exercise prices ranging from $0.625 to $1.10 per share through April
30, 1999. In addition, each non-employee director as of April 1998 was granted
an option to purchase 80,000 common shares under the 1997 Incentive Share Plan,
to vest in installments of 20,000 shares per year beginning one year from the
date of grant, May 28, 1998, at an exercise price of $1.10 per share. On April
22, 1999, the Company granted each of the two new non-employee directors
options to purchase 80,000 shares of Common Stock pursuant to the 1997 stock
option plan at an exercise price of $5.50 per share. The options vest at a rate
of 20,000 upon each anniversary of the grant date. The Company accelerated the
vesting of 20,000 of Mr. Salameh's options on April 22, 1999 when his term as a
director expired; those options were scheduled to vest on May 28, 1999.

Item 16. Exhibits and Financial Statement Schedules.

   a. The following documents are filed as exhibits to this registration
statement:

<TABLE>
<CAPTION>
 Exhibit Description
 ------- -----------
 <C>     <S>
 **1.1   Form of Underwriting Agreement
  *3.1   Certificate of Incorporation of the Company, as amended and restated
  *3.2   By-laws of the Company, as amended and restated
 **4.1   Form of certificate of common stock
  *4.2   Indenture dated as of July 24, 1998, by and between Bank of Montreal
         Trust Company (as trustee) and the Company
  *4.3   Specimen 11 3/4% Series B Senior Note due 2008
  *4.4   Escrow and Disbursement Agreement dated as of July 24, 1998, among the
         Chase Manhattan Bank (as escrow agent), the Bank of Montreal Trust
         Company, and the Company
</TABLE>

                                      II-3
<PAGE>

<TABLE>
 <C>      <S>
    *4.5  Exchange and Registration Rights Agreement dated as of July 24, 1998,
          by and between Chase Securities, Inc. and the Company
    *4.6  Warrant Agreement dated as of July 29, 1998, by and between the
          Company and Bank of Montreal Trust Company
   **5.1  Opinion of Fried, Frank, Harris, Shriver & Jacobson
   *10.1  Purchase Agreement dated as of July 21, 1998, by and between the
          Company and Chase Securities, Inc.
   *10.2  Plan of Merger dated as of May 7, 1998, by and between Splitrock
          Services, Inc. (a Texas Corporation) and Splitrock Services, Inc. (a
          Delaware Corporation)
   *10.3  Splitrock Full Service Agreement dated as of June 24, 1997, by and
          between the Company and Prodigy Services Corporation (certain
          portions omitted based on grant of confidential treatment and filed
          separately with the Commission).
 ***10.4  Amendment to Full Service Agreement between the Company and Prodigy
          Communications Corporation dated May 18, 1999.
   *10.5  Definitive Agreement dated as of June 24, 1997, by and between
          Prodigy Services Corporation and the Company
   *10.6  Transition Services Agreement dated as of June 24, 1997, by and
          between Prodigy Services Corporation and the Company
   *10.7  Network Implementation Agreement effective as of April 23, 1998, by
          and between the Company and Ericsson, Inc.
   *10.8  Purchase Agreement effective July 1, 1997, by and between the Company
          and Yurie Systems, Inc.
   *10.9  Customer Service Agreement effective April 1, 1998, by and between
          the Company and International Business Machines Corporation ("IBM")
   *10.10 IBM Customer Agreement effective April 1, 1998, by and between the
          Company and IBM
   *10.11 Product Support Services Agreement dated February 27, 1998, together
          with Addendum effective March 1, 1998
   *10.12 Splitrock Services, Inc. 1997 Incentive Share Plan
   *10.13 Employment Agreement effective March 15, 1997, between William R.
          Wilson and the Company
   *10.14 Employment Agreement effective September 1, 1998, between Patrick J.
          McGettigan, Jr. and the Company
    10.15 Employment Contract, effective March 1, 1999, between the Company and
          David M. Boatner.
    10.16 Employment Contract, effective March 22, 1999, between the Company
          and J. Robert Fugate.
 ***10.17 Cost Sharing National IRU Agreement effective April 26, 1999 by and
          between Level 3 Communications, LLC and the Company.
 ***10.18 First Amendment to Cost Sharing National IRU Agreement by and between
          Level 3 Communications, LLC and the Company
    23.1  Consent of PricewaterhouseCoopers LLP
  **23.2  Consent of Fried, Frank, Harris, Shriver & Jacobson (included in
          Exhibit 5.1 above)
    24.1  Power of Attorney (included on signature page of this registration
          statement)
    27.1  Financial data schedule
    99.1  Schedule II: Valuation and Qualifying Accounts
    99.2  Report of Independent Accountants on Financial Statement Schedule
</TABLE>
- --------
*  Incorporated by reference to our Registration Statement on Form S-4, File
   No. 333-61293.
** To be filed by amendment.
*** Portions of this exhibit have been redacted and are subject to a request
    for confidential treatment that has been or will be filed with the
    Securities and Exchange Commission.

                                      II-4
<PAGE>

Item 17. Undertakings.

   The undersigned registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act, each filing of the
registrant's annual reports pursuant to section 13(a) or section 15(d) of the
Securities Exchange Act of 1934 (and, where applicable, each filing of an
employee benefit plan's annual report pursuant to section 15(d) of the
Securities Exchange Act of 1934) that is incorporated by reference in the
registration statement shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

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

   The undersigned registrant hereby undertakes that:

  (1) To provide to the Underwriters at the closing specified in the
      underwriting agreement certificates in such denominations and
      registered in such names as required by the Underwriters to permit
      proper delivery to each purchaser.

  (2) For purposes of determining any liability under the Securities Act, the
      information omitted from the form of prospectus filed as part of this
      registration statement in reliance upon Rule 430A and contained in a
      form of prospectus filed by the registrant pursuant to Rule 424b(1) or
      (4) or 497(h) under the Securities Act shall be deemed to be part of
      this registration statement as of the time it was declared effective.

  (3) For purposes of determining any liability under the Securities Act,
      each post-effective amendment that contains a form of prospectus shall
      be deemed to be a new registration statement relating to the securities
      offered therein, and the offering of such securities at that time shall
      be deemed to be the initial bona fide offering thereof.

                                      II-5
<PAGE>

                                   SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the Registrant
has duly caused this registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of The Woodlands, State of
Texas, on June 3, 1999.

                                          SPLITROCK SERVICES, INC.

                                          By:      /s/ William R. Wilson
                                              -------------------------------
                                                     William R. Wilson
                                               President and Chief Executive
                                                           Officer

   The undersigned directors and officers of Splitrock Services, Inc. hereby
constitute and appoint William R. Wilson and Patrick J. McGettigan, Jr. and
each of them with full power to act without the other and with full power of
substitution and resubstitution, our true and lawful attorneys-in-fact with
full power to execute in our name and behalf in the capacities indicated below
this Registration Statement on Form S-1 and any and all amendments thereto,
including post-effective amendments to this Registration Statement and to sign
any and all additional registration statements relating to the same offering of
securities as this Registration Statement that are filed pursuant to Rule
462(b) of the Securities Act of 1933, and to file the same, with all exhibits
thereto and other documents in connection therewith, with the Securities and
Exchange Commission and hereby ratify and confirm that all such attorneys-in-
fact, or any of them, or their substitutes shall lawfully do or cause to be
done by virtue hereof.

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

<TABLE>
<CAPTION>
             Signature                              Title                     Date
             ---------                              -----                     ----
<S>                                  <C>                                  <C>
           /s/ Kwok L. Li            Chairman of the Board of Directors   June 3, 1999
- --------------------------------      and Chief Technical Officer
             Kwok L. Li

       /s/ William R. Wilson         President, Chief Executive Officer   June 3, 1999
- --------------------------------      and Director (Principal Executive
         William R. Wilson            Officer)

      /s/ J. Robert Fugate           Executive Vice President and         June 3, 1999
- --------------------------------      Chief Financial Officer (Principal
          J. Robert Fugate            Financial and Accounting Officer)

      /s/ James M. Nakfoor
- --------------------------------
          James M. Nakfoor           Director                             June 3, 1999

     /s/ Marshall C. Turner
- --------------------------------
         Marshall C. Turner          Director                             June 3, 1999

       /s/ Roy A. Wilkens
- --------------------------------
           Roy A. Wilkens            Director                             June 3, 1999
</TABLE>

                                      II-6
<PAGE>

                               Index to Exhibits

<TABLE>
<CAPTION>
 Exhibit  Description
 -------  -----------
 <C>      <S>
  **1.1   Form of Underwriting Agreement
   *3.1   Certificate of Incorporation of the Company, as amended and restated
   *3.2   By-laws of the Company, as amended and restated
  **4.1   Form of certificate of common stock
   *4.2   Indenture dated as of July 24, 1998, by and between Bank of Montreal
          Trust Company (as trustee) and the Company
   *4.3   Specimen 11 3/4% Series B Senior Note due 2008
   *4.4   Escrow and Disbursement Agreement dated as of July 24, 1998, among
          the Chase Manhattan Bank (as escrow agent), the Bank of Montreal
          Trust Company, and the Company
    *4.5  Exchange and Registration Rights Agreement dated as of July 24, 1998,
          by and between Chase Securities, Inc. and the Company
    *4.6  Warrant Agreement dated as of July 29, 1998, by and between the
          Company and Bank of Montreal Trust Company
   **5.1  Opinion of Fried, Frank, Harris, Shriver & Jacobson
   *10.1  Purchase Agreement dated as of July 21, 1998, by and between the
          Company and Chase Securities, Inc.
   *10.2  Plan of Merger dated as of May 7, 1998, by and between Splitrock
          Services, Inc. (a Texas Corporation) and Splitrock Services, Inc. (a
          Delaware Corporation)
   *10.3  Splitrock Full Service Agreement dated as of June 24, 1997, by and
          between the Company and Prodigy Services Corporation (certain
          portions omitted based on grant of confidential treatment and filed
          separately with the Commission).
 ***10.4  Amendment to Full Service Agreement between the Company and Prodigy
          Communications Corporation dated May 18, 1999.
   *10.5  Definitive Agreement dated as of June 24, 1997, by and between
          Prodigy Services Corporation and the Company
   *10.6  Transition Services Agreement dated as of June 24, 1997, by and
          between Prodigy Services Corporation and the Company
   *10.7  Network Implementation Agreement effective as of April 23, 1998, by
          and between the Company and Ericsson, Inc.
   *10.8  Purchase Agreement effective July 1, 1997, by and between the Company
          and Yurie Systems, Inc.
   *10.9  Customer Service Agreement effective April 1, 1998, by and between
          the Company and International Business Machines Corporation ("IBM")
   *10.10 IBM Customer Agreement effective April 1, 1998, by and between the
          Company and IBM
   *10.11 Product Support Services Agreement dated February 27, 1998, together
          with Addendum effective March 1, 1998
   *10.12 Splitrock Services, Inc. 1997 Incentive Share Plan
   *10.13 Employment Agreement effective March 15, 1997, between William R.
          Wilson and the Company
   *10.14 Employment Agreement effective September 1, 1998, between Patrick J.
          McGettigan, Jr. and the Company
    10.15 Employment Contract, effective March 1, 1999, between the Company and
          David M. Boatner.
    10.16 Employment Contract, effective March 22, 1999, between the Company
          and J. Robert Fugate.
 ***10.17 Cost Sharing National IRU Agreement effective April 26, 1999 by and
          between Level 3 Communications, LLC and the Company.
 ***10.18 First Amendment to Cost Sharing National IRU Agreement by and between
          Level 3 Communications, LLC and the Company
    23.1  Consent of PricewaterhouseCoopers LLP
  **23.2  Consent of Fried, Frank, Harris, Shriver & Jacobson (included in
          Exhibit 5.1 above)
</TABLE>
<PAGE>

<TABLE>
<CAPTION>
 Exhibit Description
 ------- -----------
 <C>     <S>
 24.1    Power of Attorney (included on signature page of this registration
         statement)
 27.1    Financial data schedule
 99.1    Schedule II: Valuation and Qualifying Accounts
 99.2    Report of Independent Accountants on Financial Statement Schedule
</TABLE>
- --------
*  Incorporated by reference to our Registration Statement on Form S-4, File
   No. 333-61293.
** To be filed by amendment.
*** Portions of this exhibit have been redacted and are subject to a request
    for confidential treatment that has been or will be filed with the
    Securities and Exchange Commission.

<PAGE>

                                                                    EXHIBIT 10.4

NOTE: Redacted portions have been marked with asterisks (**8). The redacted
portions are subject to a request for confidential treatment that has been filed
with the Securities and Exchange Commission.


                      Amendment to Full Service Agreement
                      -----------------------------------


     THIS AMENDMENT dated as of May 18, 1999 (the "Amendment") amends that
certain Full Service Agreement dated June 24, 1997 (the "Agreement") by and
between Prodigy Communications Corporation ("Prodigy") and Splitrock Services,
Inc. ("Splitrock"), effective as of January 1, 1999.

     Prodigy and Splitrock agree that the Agreement shall be amended as follows:

     1.   Section 2.3 (14) of the Agreement shall be amended by deleting
          "December 31, 1998" and replacing said date with "October 31, 1999".

     2.   The Maximum Monthly Usage Charge for Prodigy Classic Subscribers under
          a reduced plan of (***)  or less per month and were restricted to
          lower usage shall be lowered from (***) to (***) per month, effective
          January 1, 1999 and ending not later than October 31, 1999.  This set
          of subscribers will not be calculated for purposes of computing the
          average monthly connect hours as set forth in Section 6.5.1.  Other
          than the foregoing, Section 6.5.1 shall remain in full force and
          effect throughout the term of the Agreement for any other "Subscriber"
          as that term is defined in the Agreement.

     Executed as of the day above written.

Prodigy Communications Corporation       Splitrock Services, Inc.

By:
    --------------------------------         --------------------------------
Its:                                     Its:
    --------------------------------         --------------------------------

<PAGE>

                                                                   Exhibit 10.15

                              EMPLOYMENT CONTRACT
                              -------------------

     This Employment Contract (the "Contract"), effective as of the 1st day of
March, 1999, is by and between Splitrock Services, Inc., a Delaware Corporation
(the "Corporation" or "Employer"), and David M. Boatner ("Employee").

     1.  Introduction.  The Corporation employs Employee to perform the services
         ------------
described herein and Employee hereby accepts such employment, on the terms and
conditions set forth herein.

     2.  Position and Duties.  Employee hereby agrees to accept and perform the
         -------------------
duties of Executive Vice-President and Chief Marketing Officer of the
Corporation and in that capacity agrees to exert his best efforts to the
prosecution of the duties of those offices ("Duties") and faithfully to perform
all such Duties.

     3.  Term.  The term of this Contract (the "Employment Term") shall commence
         ----
on the effective date of this Contract and shall end on February 28, 2001.

     4.  Compensation.  For Employee's covenants included in this Contract and
         ------------
for all services rendered by Employee in any capacity during the Employment
Term, including services as an officer, or member of any committee of the
Corporation or of any subsidiary, division or affiliate thereof, Employee shall
be paid as compensation, the following:

          (a) Base Salary. A base annual salary of $175,000 (a ratable part of
which annual salary shall be payable monthly).  Such salary shall be subject to
customary payroll deductions and employment taxes.

          (b) Incentive Bonus.  In lieu of any other consideration or
reimbursement of any expenses for relocation, moving or related, Employee will
be paid a signing bonus of $75,000 payable on or before thirty (30) days
following the effective date.  Additionally, Employee shall be eligible for a
performance incentive award, if any, that is made available to other similar
officers of the Corporation.

     5.  Stock Options.  Corporation grants to Employee non-qualified stock
         -------------
options with the right to purchase Four Hundred Thousand (400,000) shares of the
<PAGE>

Corporation's common stock. The grant date shall be March 1, 1999.  The option
or exercise price will be $5.50 per share. The options will vest in equal
amounts over four years, and will be exercisable for ten years from the grant
date.  If employment terminates for any reason, the nonvested options will be
forfeited and the vested but unexercised options will terminate 90 days after
termination of employment.  The full terms and conditions of the options are
subject to the 1997 Incentive Share Plan adopted by the Corporation, and a
formal stock option agreement to be executed between Employee and the
Corporation, a specimen of which is attached hereto as Exhibit "A".

     6.  Benefits.  During the Employment Term, Employee shall be furnished all
         --------
Employee benefits customarily offered by the Corporation to its senior executive
employees, and reimbursement of all expenses incurred in the conduct of the
Corporation's business as are reasonable, prudent and necessary.  Employee shall
have the right to reasonable vacation time in accordance with the Corporation's
standard policy.  Health, life and disability insurance coverage afforded other
employees of the Corporation shall be made available to Employee, subject to
eligibility for such coverage.

     7.  Performance of Duties.  During the Employment Term, Employee shall
         ---------------------
devote his best efforts to the business and affairs of the Corporation.  It is
further understood and agreed that Employee shall take reasonable vacations, may
take time off due to illness or incapacity and may devote reasonable periods
required for engaging in charitable, professional, and community activities, in
each case so long as such activities do not interfere with the proper
performance of his Duties hereunder.

     8.  Termination.  (a) The employment relationship between Employee and the
         -----------
Corporation shall be terminated upon the first to occur of any of the following
events:
               (i)  the death of Employee;

               (ii) the permanent disability of Employee;

               (iii)  the voluntary resignation by Employee, which shall be made
                    by written notice to the Board specifying an effective date
                    of such resignation not less than 30 days after the date of
                    such notice; or

               (iv) the termination by the Corporation of Employee's employment
                    with or without Cause, as defined below,

                                      -2-
<PAGE>

                    which shall be made by written notice to Employee specifying
                    an effective date of such termination and, if with Cause,
                    specifying such Cause.

          (b) As used in this Contract, "Cause" shall mean:

               (i)  final conviction of Employee for a felony-grade crime or any
                    crime involving moral turpitude; or

               (ii) the willful or grossly negligent violation by Employee of
                    the provisions of Section 9.

          (c) Upon termination of the employment relationship between Employee
and the Corporation for any reason other than (i) by the Corporation with Cause
or (ii) by voluntary resignation by Employee the Corporation will pay Employee
the balance of the base salary remaining to be paid under this Contract.

     9.  Confidential Information and Inventions.  Employee agrees and covenants
         ---------------------------------------
to use his best efforts and exercise utmost diligence to protect and safeguard
the trade secrets and confidential and proprietary information of the
Corporation.  Employee further agrees and covenants that, except as may be
required by the Corporation in connection with this Contract, or with the prior
written consent of the Corporation, Employee shall not, either during the term
of this Contract or thereafter, use for Employee's own benefit or for the
benefit of another, or disclose, disseminate or distribute to another, any trade
secret or confidential or proprietary information (whether or not acquired,
learned, obtained or developed by Employee alone or in conjunction with another)
of the Corporation or of any other person with whom the Corporation has a
business relationship.  All memoranda, notes, records, drawings, documents or
other writings whatsoever made, compiled, acquired or received by Employee
during the Employment Term, arising out of, in connection with, or related to
any activity or business of the Corporation are and shall continue to be, the
sole and exclusive property of the Corporation, and shall, together with all
copies thereof, be returned and delivered to the Corporation by Employee
immediately, without demand, when Employee ceases to be employed by the
Corporation, or at any time upon the Corporation's demand.

                                      -3-
<PAGE>

     10.  Non-Competition.
          ---------------

          (a) Employer's Business and Assets.  The Employer is in the business
              ------------------------------
of selling, marketing, and distributing the "Employer's Products and Services,"
as that term is defined hereafter, throughout the United States.  The term
"Employer's Products and Services" shall mean the sale, marketing and
distribution of various product lines and services in the data communications
industry and any other similar services and products in the telecommunications
industry.

     The principal assets of Employer's business, each of which has been
acquired through the outlay of considerable time, effort and expense by
Employer, include without limitation the following:  its goodwill, the names,
key contacts, addresses, continued patronage and particular needs and desire of
its customers, resellers and distributors; and other proprietary and
confidential trade information as described in Section 9 of this Agreement.

          (b) Employer's Interest in Protecting Business and Assets.  Employee
              -----------------------------------------------------
acknowledges the Employer's vital business interest in protecting the base of
business it plans to develop nationwide as well as the Employer's current base
of business, customer contacts, accounts, and relationships throughout the
United States.  Employee recognizes that the Employer's business is subject to
being severely and adversely affected, if the sources, availability, sales and
price information regarding the Employer's current customers, sources of new
customers and current customers which Employee has acquired or developed through
his employment relationship, were to be made available to a competitor, or to an
entity which could become a competitor.  Employee also recognizes the Employer's
business interests in protecting the Employer's goodwill, trade secrets, and
confidential and proprietary information.

     Further, Employee acknowledges that such business interests on the part of
the Employer give rise to the Employer's desire to restrain Employee from
competing with the Employer during the term of this Agreement and for a
reasonable period of time after Employee's employment with the Company is
terminated in those markets where Employee performed his duties during his
employment with Employer.

                                      -4-
<PAGE>

     Employee hereby enters into this covenant not to compete (and non-
solicitation of customers and employees) with the Employer, in consideration of
the Employer's agreement to employ Employee at the compensation level described
in Section 4 of this Agreement, Employer's agreement to grant Employee non-
qualified stock options to purchase shares of stock of the Employer as described
in Section 5 of this Agreement, and the Employer's agreement to disclose its
Confidential Information and Trade Secrets to Employee during the term of this
Agreement.

     11.  Covenant Not To Compete and Other Restrictions Following Termination.
          --------------------------------------------------------------------

          (a) Non-Compete.  Employee covenants and agrees that, except as
              -----------
otherwise expressly and specifically consented to, approved or permitted in
writing by the Employer, during the Non-Competition Period (defined below)
Employee will not engage in the Business directly or indirectly, alone or with
any other person or entity, as a member of a partnership, limited liability
company, or other business entity or as an investor in any security of any class
(except as an investor in less than 2% of an outstanding publicly traded class
of equity securities listed on the New York Stock Exchange, the American Stock
Exchange or the Nasdaq National Market), or as a consultant, advisor, agent,
representative or in any other capacity to or for any employer or other business
entity engaged in the Business.  This Section shall prohibit employee from
engaging in a Business in those markets throughout the United States in which
the Employer:  (i) engages in as of the date of the Employee's termination of
employment and where Employee serviced customers, made customer contacts, or was
responsible for customer accounts while employed at the Employer; or (ii) has
developed in writing a concrete plan to engage in such Business during
Employee's employment which plan is still in effect as of the date of the
termination of Employee's employment and of which Employee has knowledge.

     Employee specifically acknowledges that given the national scope and
extensive nature of the Employer's business, the scope of the non-compete herein
is reasonable for the protection of Employer's business, and Employee
specifically agrees, that Employee shall not compete in those areas set forth
above with respect to the Business during the Non-Competition Period.

                                      -5-
<PAGE>

          (b) Non-Solicitation.  In addition to the foregoing, during the Non-
              ----------------
Competition Period and the Non-Solicitation Period, Employee shall not:

               (i)  call on, solicit, divert or take away, or attempt to call
                    on, solicit, divert or take away any of the customers of the
                    Employer on whom Employee called upon or whom Employee
                    became acquainted with during the term of employment with
                    the Employer under this Agreement, either for himself or for
                    any other person, firm or employer;

               (ii) effect or attempt to effect, directly or indirectly, any
                    transaction in the purchase or sale of products or services
                    similar to the Employer's products or services with any
                    Employer Customer;

               (iii)  request or advise any principal, reseller, distributor or
                    customer of the Employer, other person, firm or employer
                    having business dealings with the Employer to withdraw,
                    curtail, cancel or modify such business dealings;

               (iv) induce or attempt to induce any employee of the Employer to
                    terminate his employment with the Employer.

          (c) Certain Defined Terms.  For purposes of Section 11:  "Non-
              ---------------------
Competition Period" and "Non-Solicitation Period" means:

               (i)  if Employee terminates or is terminated from employment for
                    any reason, during the period beginning upon the date of
                    separation from employment, and ending one (1) year
                    thereafter.

               (ii) "Business" means all parts of the business of the Employer
                    being conducted on the date of Employee's termination of
                    employment with the Employer and that Employee was engaged
                    in.

          (d) FURTHER ACKNOWLEDGMENT.  EMPLOYEE FURTHER ACKNOWLEDGES AND AGREES
THAT THE LIMITATIONS SET FORTH HEREIN ARE REASONABLE IN EACH AND EVERY RESPECT.

          (e) Scope.  The parties hereto agree and request that in the event
              -----
that the scope of the covenants set forth in this Section 11, including the
geographic scope or

                                      -6-
<PAGE>

the length of the Non-Competition Period or the Non-Solicitation, is deemed to
be too broad in any court proceeding, the court or arbitrator may reduce such
scope to that which it deems reasonable under the circumstances.

     12.  Injunctive Relief for Breach of Covenant Not to Compete and Not to
          ------------------------------------------------------------------
          Solicit Customers and Employees Following Termination.
          ------------------------------------------------------

          (a) Employee and the Employer recognize and agree that the Employer's
enforcement of Employee's Covenant Not to Compete, and Non-Solicitation of
customers and employees shall be necessary to prevent irreparable harm and
damage to the business of the Company and that the limitations as to time,
geographical area and scope of activity to be restrained are reasonable and to
not impose a greater restraint on Employee than is necessary to protect the
goodwill and other business interests of the Employer.

          (b) Because of the unique nature of the special training and knowledge
received by the Employee from the Company and because of the inadequacy of
monetary awards for breach of the obligations contained in this Section, if
Employee fails to comply with any such obligations or in the event of a breach
or threatened breach of any of the provisions herein, the Employer in addition
to any other remedies available to it at law or in equity, shall be entitled to
immediate injunctive relief to enforce the provisions of this Section and shall
be entitled to recover from Employee reasonable attorneys' fees and other
expenses incurred by the Employer in connection with such proceeding.

     13.  Agreement Ancillary to Other Agreements.  The Covenant Not to Compete
          ---------------------------------------
and The Covenants Not to Solicit set forth in Section 11 are ancillary to, and
part of, other agreements between the Employer and Employee, including:

          (a) the agreement to engage Employer for the term described in Section
3 of this Agreement;

          (b) the agreement to compensate Employee at the rate described in
Section 4 of this Agreement;

          (c) the agreement to grant Employee non-qualified options to purchase
shares of stock of the Employer as described in Section 5 of this Agreement;

                                      -7-
<PAGE>

          (d) the agreement to disclose certain confidential and proprietary
information to Employer during the course of this Agreement, as described in
Sections 9 and 10 of this Agreement.

     Furthermore, the parties acknowledge that the Employer's agreements as set
forth in Section 13 of this Agreement give rise to the Employer's interest in
restraining Employer from competing with the Employer and soliciting its
customers and employees for a one (1) year period after termination of such
employment.

     14.  Notice to Subsequent Employer.  Employee expressly grants the Employer
          -----------------------------
the right, within one (1) year after the termination of Employee's employment to
advise any subsequent employer/contractor or potential employer/contractor of
the Employee of the existence and contents of this Agreement, as well as
information about the Employee's assigned geographic area, scope of duties, and
job performance at the Employer.  Employee waives any claims he/she may
otherwise have against Employer based on the release of this information.

     15.  Indemnification.  The Corporation shall indemnify, and advance
          ---------------
expenses to, Employee (whether or not then employed by the Corporation) against
all judgments, penalties (including excise and similar taxes), fines, amounts
paid in settlement and reasonable expenses actually incurred by Employee in
connection with or arising out of any action, suit or proceeding in which he may
be involved by reason of his being or having been an officer, employee or agent
of the Corporation (whether or not he continues to be an officer, employee or
agent at the time of incurring such expenses and liabilities) to the extent that
such indemnification is permitted by all valid and applicable laws, including,
without limitation, the Delaware Business Corporation Act; provided, however,
that the Corporation shall in no event be obligated to indemnify Employee or
advance expenses to Employee in connection with any action, suit or proceeding
in which Employee has been found liable for gross negligence, willful misconduct
or an intentional act.  The indemnification and advancement of expenses provided
in this section shall (a) also extend to Employee who while serving as an
officer, director, employee or agent of the Corporation also served at the
Corporation's request as a director, officer, partner, venturer, proprietor,
trustee, employee, agent or similar functionary of another foreign or

                                      -8-
<PAGE>

domestic corporation, partnership, joint venture, trust, employee benefit plan
or other enterprise, (b) not be deemed exclusive of any other rights of Employee
arising under any law, by any agreement or vote of shareholders or directors, by
contract, under any insurance policy maintained by the Corporation, or
otherwise, and (c) not be required if and to the extent that the person
otherwise entitled to payment of such amounts hereunder has actually received
payment therefor under any insurance policy, contract or otherwise. Neither the
amendment or modification of, nor the termination of, this Contract or any
provision hereof shall in any manner terminate, reduce or impair the right of
Employee to be indemnified by the Corporation, or the obligation of the
Corporation to indemnify Employee under and in accordance with the provisions of
this Section 15 as in effect immediately prior to such amendment, modification
or termination with respect to claims arising from or relating to matters
occurring, in whole or in part, prior to such amendment, modification, or
termination, regardless of when such claims may arise or be asserted.

     16.  Survival of Covenants.  In the event of termination of this Contract
          ---------------------
for any reason whatsoever, the Corporation shall remain bound by the provisions
of Sections 8(c) and 15 of this Contract and Employee shall remain bound by the
provisions of Sections 9 to 14 of this Contract.

     17.  Notices.  Any notice or other communication hereunder shall be in
          -------
writing and shall be delivered by (i) personal delivery, (ii) certified or
registered mail, postage prepaid or (iii) telex or telecopier.  Any such notice
shall be deemed upon its receipt at the following address:

          If to Employee:

          Mr. David M. Boatner
          7 Watermark Way
          The Woodlands, Texas  77381

          If to the Corporation:

          Splitrock Services, Inc.
          8665 New Trails Drive
          The Woodlands, Texas  77381
          Attn:  William R. Wilson, President

                                      -9-
<PAGE>

     Any party may, by notice given in accordance with this Section 17 to the
other party, designate another address or person for receipt of notices
hereunder.

     18.  Parties Bound.  This Contract shall inure to the benefit of and be
          -------------
binding upon the parties hereto, their respective heirs, legal representatives,
successors and permitted assigns.  Without limiting the generality of the
foregoing, any corporation into or with which the Corporation shall merge or
consolidate or to which the Corporation shall transfer all or substantially all
of its assets shall be deemed a successor of the Corporation.  Neither party may
assign any of its or his rights or obligations under this Contract unless the
other party agrees thereto in writing, provided, however, that this provision
shall not preclude Employee from designating one or more beneficiaries to
receive any amount that may be payable after his death and shall not preclude
the legal representative or his estate from assigning any right hereunder to the
person or persons entitled thereto under his will or, in the case of intestacy,
to the person or persons entitled thereto under the laws of intestacy applicable
to his estate.

     19.  Integration and Amendments.  This Contract contains the entire
          --------------------------
agreement between the parties, and supersedes all prior and contemporaneous
written or oral agreements and understandings and may be amended only by an
instrument in writing signed by both parties hereto.

     20.  Captions.  The headings herein are for convenience only and shall not
          --------
affect the construction hereof.

     21.  Time of the Essence.  The parties agree that time shall be of the
          -------------------
essence in the performance of obligations hereunder.

     22.  Severability of Provisions.  If any provision of this Contract is held
          --------------------------
by a court of competent jurisdiction to be illegal, invalid, or unenforceable,
the remainder of the terms, provisions, covenants and restrictions of this
Contract shall remain in full force and effect and shall in no way be affected,
impaired or invalidated thereby, and, in lieu of such illegal, invalid, or
unenforceable provision, there shall be added automatically as a part of this
Contract a provision as similar in terms to such illegal, invalid, or
unenforceable provision as may be possible and be legal, valid, and enforceable.

                                      -10-
<PAGE>

     23.  Governing Law.  THIS CONTRACT SHALL BE GOVERNED BY AND CONSTRUED IN
          -------------
ACCORDANCE WITH THE LAWS OF THE STATE OF TEXAS WITHOUT REGARD TO THE PRINCIPLES
OF CONFLICTS OF LAW.

     24.  Due Authorization.  The Corporation represents and warrants to
          -----------------
Employee that the Corporation has all necessary legal power and authority to
execute, deliver and perform this Contract, and has taken all necessary action
authorizing the execution, delivery and performance of same.

     25.  Alternative Dispute Resolution.  The parties hereto agree that if a
          ------------------------------
dispute arises under this Contract that they will join in a motion requesting
the court with jurisdiction over the dispute to refer the dispute for resolution
by an alternative dispute resolution procedure as established under Chapter 154
of the Texas Civil Practice and Remedies Code.

     26.  Fees and Expenses.  The parties hereto agree that if a dispute over
          -----------------
the terms or enforcement of this Contract is litigated or is settled by an
alternative dispute resolution procedure, the party that prevails shall be
entitled to recover all fees and expenses incurred in connection with the
dispute, including reasonable fees of attorneys and accountants.

     IN WITNESS WHEREOF, the parties hereto have executed this Contract
effective as of the date first above written.

                    SPLITROCK SERVICES, INC., a Delaware Corporation


                    By:_____________________________________________
                    Name:  William R. Wilson
                    Title: President & CEO



                    ________________________________________________
                    Name:    David M. Boatner

                                      -11-

<PAGE>

                                                                   Exhibit 10.16

                              EMPLOYMENT CONTRACT
                              -------------------

     This Employment Contract (the "Contract"), effective as of the 22nd day of
March 1999, is by and between Splitrock Services, Inc., a Delaware Corporation
(the "Corporation" or "Employer"), and J. Robert Fugate ("Employee").

     1.  Introduction.  The Corporation employs Employee to perform the services
         ------------
described herein and Employee hereby accepts such employment, on the terms and
conditions set forth herein.

     2.  Position and Duties.  Employee hereby agrees to accept and perform the
         -------------------
duties of Executive Vice-President and Chief Financial Officer of the
Corporation and in that capacity agrees to exert his best efforts to the
prosecution of the duties of those offices ("Duties") and faithfully to perform
all such Duties.

     3.  Term.  The term of this Contract (the "Employment Term") shall commence
         ----
on the effective date of this Contract and shall end on March 21, 2001.

     4.  Compensation.  For Employee's covenants included in this Contract and
         ------------
for all services rendered by Employee in any capacity during the Employment
Term, including services as an officer, or member of any committee of the
Corporation or of any subsidiary, division or affiliate thereof, Employee shall
be paid as compensation, the following:

          (a) Base Salary.  A base annual salary of $ 185,000 (a ratable part of
which annual salary shall be payable monthly).  Such salary shall be subject to
customary payroll deductions and employment taxes.

          (b) Incentive Bonus.  In lieu of any other consideration or
reimbursement of any expenses for relocation, moving or related, Employee will
be paid a signing bonus of $ 50,000 payable on or before thirty (30) days
following the effective date.  Additionally, Employee shall be eligible for a
performance incentive award, if any, that is made available to other similar
officers of the Corporation.

     5.  Stock Options.  Corporation grants to Employee non-qualified stock
         -------------
options with the right to purchase Three Hundred Fifty Thousand (350,000) shares
of the Corporation's common stock. The grant date shall be March 22, 1999.  The
option or exercise price will be $5.50 per share. The options will vest in equal
amounts over four
<PAGE>

years, and will be exercisable for ten years from the grant date. If employment
terminates for any reason, the nonvested options will be forfeited and the
vested but unexercised options will terminate 180 days after termination of
employment. The full terms and conditions of the options are subject to the 1997
Incentive Share Plan adopted by the Corporation, and a formal stock option
agreement to be executed between Employee and the Corporation, a specimen of
which is attached hereto as Exhibit "A".

     6.  Benefits.  During the Employment Term, Employee shall be furnished all
         --------
Employee benefits customarily offered by the Corporation to its senior executive
employees, and reimbursement of all expenses incurred in the conduct of the
Corporation's business as are reasonable, prudent and necessary.  Employee shall
have the right to reasonable vacation time in accordance with the Corporation's
standard policy.  Health, life and disability insurance coverage afforded other
employees of the Corporation shall be made available to Employee, subject to
eligibility for such coverage.

     7.  Performance of Duties.  During the Employment Term, Employee shall
         ---------------------
devote his best efforts to the business and affairs of the Corporation.  It is
further understood and agreed that Employee shall take reasonable vacations, may
take time off due to illness or incapacity and may devote reasonable periods
required for engaging in charitable, professional, and community activities, in
each case so long as such activities do not interfere with the proper
performance of his Duties hereunder.

     8.  Termination.  (a)  The employment relationship between Employee and the
         -----------
Corporation shall be terminated upon the first to occur of any of the following
events:
               (i)  the death of Employee;

               (ii) the permanent disability of Employee;

               (iii)  the voluntary resignation by Employee, which shall be made
                    by written notice to the Board specifying an effective date
                    of such resignation not less than 30 days after the date of
                    such notice; or

               (iv) the termination by the Corporation of Employee's employment
                    with or without Cause, as defined below, which shall be made
                    by written notice to Employee specifying an effective date
                    of such termination and, if with Cause, specifying such
                    Cause.

                                      -2-
<PAGE>

          (b) As used in this Contract, "Cause" shall mean:

               (i)  final conviction of Employee for a felony-grade crime or any
                    crime involving moral turpitude; or

               (ii) the willful or grossly negligent violation by Employee of
                    the provisions of Section 9.

          (c) Upon termination of the employment relationship between Employee
and the Corporation for any reason other than (i) by the Corporation with Cause,
or (ii) by voluntary resignation by Employee, the Corporation will pay Employee
either 12 months of the base salary to be paid under this Contract if
termination occurs on or before March 21, 2000 or 6 months of the base salary to
be paid under this Contract if termination occurs after March 21, 2000 and
before March 21, 2001.   All such payments shall be payable over the applicable
period of time at the designated payroll periods then in effect.

     9.  Confidential Information and Inventions.  Employee agrees and covenants
         ---------------------------------------
to use his best efforts and exercise utmost diligence to protect and safeguard
the trade secrets and confidential and proprietary information of the
Corporation.  Employee further agrees and covenants that, except as may be
required by the Corporation in connection with this Contract, or with the prior
written consent of the Corporation, Employee shall not, either during the term
of this Contract or thereafter, use for Employee's own benefit or for the
benefit of another, or disclose, disseminate or distribute to another, any trade
secret or confidential or proprietary information (whether or not acquired,
learned, obtained or developed by Employee alone or in conjunction with another)
of the Corporation or of any other person with whom the Corporation has a
business relationship.  All memoranda, notes, records, drawings, documents or
other writings whatsoever made, compiled, acquired or received by Employee
during the Employment Term, arising out of, in connection with, or related to
any activity or business of the Corporation are and shall continue to be, the
sole and exclusive property of the Corporation, and shall, together with all
copies thereof, be returned and delivered to the Corporation by Employee
immediately, without demand, when Employee ceases to be employed by the
Corporation, or at any time upon the Corporation's demand.

                                      -3-
<PAGE>

     10.  Non-Competition.
          ---------------

          (a) Employer's Business and Assets.  The Employer is in the business
              ---------- -------------------
of selling, marketing, and distributing the "Employer's Products and Services,"
as that term is defined hereafter, throughout the United States.  The term
"Employer's Products and Services" shall mean the sale, marketing and
distribution of various product lines and services in the data communications
industry and any other similar services and products in the telecommunications
industry.

     The principal assets of Employer's business, each of which has been
acquired through the outlay of considerable time, effort and expense by
Employer, include without limitation the following:  its goodwill, the names,
key contacts, addresses, continued patronage and particular needs and desire of
its customers, resellers and distributors; and other proprietary and
confidential trade information as described in Section 9 of this Agreement.

          (b) Employer's Interest in Protecting Business and Assets.  Employee
              -----------------------------------------------------
acknowledges the Employer's vital business interest in protecting the base of
business it plans to develop nationwide as well as the Employer's current base
of business, customer contacts, accounts, and relationships throughout the
United States.  Employee recognizes that the Employer's business is subject to
being severely and adversely affected, if the sources, availability, sales and
price information regarding the Employer's current customers, sources of new
customers and current customers which Employee has acquired or developed through
his employment relationship, were to be made available to a competitor, or to an
entity which could become a competitor.  Employee also recognizes the Employer's
business interests in protecting the Employer's goodwill, trade secrets, and
confidential and proprietary information.

     Further, Employee acknowledges that such business interests on the part of
the Employer give rise to the Employer's desire to restrain Employee from
competing with the Employer during the term of this Agreement and for a
reasonable period of time after Employee's employment with the Company is
terminated in those markets where Employee performed his duties during his
employment with Employer.

     Employee hereby enters into this covenant not to compete (and non-
solicitation of customers and employees) with the Employer, in consideration of
the Employer's

                                      -4-
<PAGE>

agreement to employ Employee at the compensation level described in Section 4 of
this Agreement, Employer's agreement to grant Employee non-qualified stock
options to purchase shares of stock of the Employer as described in Section 5 of
this Agreement, and the Employer's agreement to disclose its Confidential
Information and Trade Secrets to Employee during the term of this Agreement.

     11.  Covenant Not To Compete and Other Restrictions Following Termination.
          --------------------------------------------------------------------

          (a) Non-Compete.  Employee covenants and agrees that, except as
              -----------
otherwise expressly and specifically consented to, approved or permitted in
writing by the Employer, during the Non-Competition Period (defined below)
Employee will not engage in the Business directly or indirectly, alone or with
any other person or entity, as a member of a partnership, limited liability
company, or other business entity or as an investor in any security of any class
(except as an investor in less than 2% of an outstanding publicly traded class
of equity securities listed on the New York Stock Exchange, the American Stock
Exchange or the NASDAQ National Market), or as a consultant, advisor, agent,
representative or in any other capacity to or for any employer or other business
entity engaged in the Business.  This Section shall prohibit Employee from
engaging in a Business in those markets throughout the United States in which
the employer:  (i) engages in as of the date of the Employee's termination of
employment and where Employee serviced customers, made customer contacts, or was
responsible for customer accounts while employed at the Employer; or (ii) has
developed in writing a concrete plan to engage in such Business during
Employee's employment which plan is still in effect as of the date of the
termination of Employee's employment and of which Employee has knowledge.

     Employee specifically acknowledges that given the national scope and
extensive nature of the Employer's business, the scope of the non-compete herein
is reasonable for the protection of Employer's business, and Employee
specifically agrees, that Employee shall not compete in those areas set forth
above with respect to the Business during the Non-Competition Period.

          (b) Non-Solicitation.  In addition to the foregoing, during the Non-
              ----------------
Competition Period and the Non-Solicitation Period, Employee shall not:

                                      -5-
<PAGE>

               (i)  call on, solicit, divert or take away, or attempt to call
                    on, solicit, divert or take away any of the customers of the
                    Employer on whom Employee called upon or whom Employee
                    became acquainted with during the term of employment with
                    the Employer under this Agreement, either for himself or for
                    any other person, firm or employer;

               (ii) effect or attempt to effect, directly or indirectly, any
                    transaction in the purchase or sale of products or services
                    similar to the Employer's products or services with any
                    Employer Customer;

               (iii)request or advise any principal, reseller, distributor or
                    customer of the Employer, other person, firm or employer
                    having business dealings with the Employer to withdraw,
                    curtail, cancel or modify such business dealings;

               (iv) induce or attempt to induce any employee of the Employer to
                    terminate his employment with the Employer.

          (c) Certified Defined Terms.  For purposes of Section 11:  Non-
              -----------------------
Competition Period" and "Non-Solicitation Period" means:

               (i)  if Employee terminates or is terminated from employment for
                    any reason, during the period beginning upon the date of
                    separation from employment, and ending one (1) year
                    thereafter.

               (ii) "Business" means all parts of the business of the Employer
                    being conducted on the date of Employee's termination of
                    employment with the Employer and that Employee was engaged
                    in.

          (d) FURTHER ACKNOWLEDGMENT. EMPLOYEE FURTHER ACKNOWLEDGES AND AGREES
THAT THE LIMITATIONS SET FORTH HEREIN ARE REASONABLE IN EACH AND EVERY RESPECT.

          (e) Scope.  The parties hereto agree and request that in the event
that the scope of the Covenants set forth in this Section 11, including the
geographic scope or the length of the Non-Competition Period or the Non-
Solicitation, is deemed to be too broad in

                                      -6-
<PAGE>

any court proceeding, the court or arbitrator may reduce such scope to that
which it deems reasonable under the circumstances.

     12.  Injunctive Relief for Breach of Covenant Not to Compete and Not to
          ------------------------------------------------------------------
          Solicit Customers and Employees Following Termination.
          -----------------------------------------------------

          (a) Employee and the Employer recognize and agree that the Employer's
enforcement of Employee's Covenant Not to Compete, and Non-Solicitation of
customers and employees shall be necessary to prevent irreparable harm and
damage to the business of the Company and that the limitations as to time,
geographical area and scope of activity to be restrained are reasonable and to
not impose a greater restraint on Employee than is necessary to protect the
goodwill and other business interests of the Employer.

          (b) Because of the unique nature of the special training and knowledge
received by the Employee from the Company and because of the inadequacy of
monetary awards for breach of the obligations contained in this Section, if
Employee fails to comply with any such obligations or in the event of a breach
or threatened breach of any of the provisions herein, the Employer in addition
to any other remedies available to it at law or in equity, shall be entitled to
immediate injunctive relief to enforce the provisions of this Section and shall
be entitled to recover from Employee reasonable attorneys' fees and other
expenses incurred by the Employer in connection with such proceeding.

     13.  Agreement Ancillary to Other Agreements.  The Covenant Not to Compete
          ---------------------------------------
and the Covenants Not to Solicit set forth in Section 11 are ancillary to, and
part of, other agreements between the Employer and Employee, including:

          (a) the agreement to engage Employer for the term described in Section
3 of this Agreement;

          (b) the agreement to compensate Employee at the rate described in
Section 4 of this Agreement;

          (c) the agreement to grant Employee non-qualified options to purchase
shares of stock of the Employer as described in Section 5 of this Agreement;

                                      -7-
<PAGE>

          (d) the agreement to disclose certain confidential and proprietary
information to Employer during the course of this Agreement, as described in
Sections 9 and 10 of this Agreement.

     Furthermore, the parties acknowledge that the Employer's agreements as set
forth in Section 13 of this Agreement give rise to the Employer's interest in
restraining Employer from competing with the Employer and soliciting its
customers and employees for a one (1) year period after termination of such
employment.

     14.  Notice to Subsequent Employer.  Employee expressly grants the Employer
          -----------------------------
the right, within one (1) year after the termination of Employee's employment to
advise any subsequent employer/contractor or potential employer/contractor of
the Employee of the existence and contents of this Agreement, as well as
information about the Employee's assigned geographic area, scope of duties, and
job performance at the Employer.  Employee waives any claims he/she may
otherwise have against Employer based on the release of this information.

     15.  Indemnification.  The Corporation shall indemnify, and advance
          ----------------
expenses to, Employee (whether or not then employed by the Corporation) against
all judgments, penalties (including excise and similar taxes), fines, amounts
paid in settlement and reasonable expenses actually incurred by Employee in
connection with or arising out of any action, suit or proceeding in which he may
be involved by reason of his being or having been an officer, employee or agent
of the Corporation (whether or not he continues to be an officer, employee or
agent at the time of incurring such expenses and liabilities) to the extent that
such indemnification is permitted by all valid and applicable laws, including,
without limitation, the Delaware Business Corporation Act; provided, however,
that the Corporation shall in no event be obligated to indemnify Employee or
advance expenses to Employee in connection with any action, suit or proceeding
in which Employee has been found liable for gross negligence, willful misconduct
or an intentional act.  The indemnification and advancement of expenses provided
in this section shall (a) also extend to Employee who while serving as an
officer, director, employee or agent of the Corporation also served at the
Corporation's request as a director, officer, partner, venturer, proprietor,
trustee, employee, agent or similar functionary of another foreign or

                                      -8-
<PAGE>

domestic corporation, partnership, joint venture, trust, employee benefit plan
or other enterprise, (b) not be deemed exclusive of any other rights of Employee
arising under any law, by any agreement or vote of shareholders or directors, by
contract, under any insurance policy maintained by the Corporation, or
otherwise, and (c) not be required if and to the extent that the person
otherwise entitled to payment of such amounts hereunder has actually received
payment therefor under any insurance policy, contract or otherwise. Neither the
amendment or modification of, nor the termination of, this Contract or any
provision hereof shall in any manner terminate, reduce or impair the right of
Employee to be indemnified by the Corporation, or the obligation of the
Corporation to indemnify Employee under and in accordance with the provisions of
this Section 15 as in effect immediately prior to such amendment, modification
or termination with respect to claims arising from or relating to matters
occurring, in whole or in part, prior to such amendment, modification, or
termination, regardless of when such claims may arise or be asserted.

     16.  Survival of Covenants.  In the event of termination of this Contract
          ---------------------
for any reason whatsoever, the Corporation shall remain bound by the provisions
of Sections 8(c) and 15 of this Contract and Employee shall remain bound by the
provisions of Sections 9 to 14 of this Contract.

     17.  Notices.  Any notice or other communication hereunder shall be in
          -------
writing and shall be delivered by (i) personal delivery, (ii) certified or
registered mail, postage prepaid or (iii) telex or telecopier. Any such notice
shall be deemed upon its receipt at the following address:

          If to Employee:

          Mr. J. Robert Fugate
          30 Noble Bend
          The Woodlands, Texas  77381

          If to the Corporation:

          Splitrock Services, Inc.
          8665 New Trails Drive
          The Woodlands, Texas   77381
          Attn:  William R. Wilson, President

                                      -9-
<PAGE>

     Any party may, by notice given in accordance with this Section 17 to the
other party, designate another address or person for receipt of notices
hereunder.

     18.  Parties Bound.  This Contract shall inure to the benefit of and be
          -------------
binding upon the parties hereto, their respective heirs, legal representatives,
successors and permitted assigns.  Without limiting the generality of the
foregoing, any corporation into or with which the Corporation shall merge or
consolidate or to which the Corporation shall transfer all or substantially all
of its assets shall be deemed a successor of the Corporation.  Neither party may
assign any of its or his rights or obligations under this Contract unless the
other party agrees thereto in writing, provided, however, that this provision
shall not preclude Employee from designating one or more beneficiaries to
receive any amount that may be payable after his death and shall not preclude
the legal representative or his estate from assigning any right hereunder to the
person or persons entitled thereto under his will or, in the case of intestacy,
to the person or persons entitled thereto under the laws of intestacy applicable
to his estate.

     19.  Integration and Amendments.  This Contract contains the entire
          --------------------------
agreement between the parties, and supersedes all prior and contemporaneous
written or oral agreements and understandings and may be amended only by an
instrument in writing signed by both parties hereto.

     20.  Captions.  The headings herein are for convenience only and shall not
          --------
affect the construction hereof.

     21.  Time of the Essence.  The parties agree that time shall be of the
          -------------------
essence in the performance of obligations hereunder.

     22.  Severability of Provisions.  If any provision of this Contract is held
          --------------------------
by a court of competent jurisdiction to be illegal, invalid, or unenforceable,
the remainder of the terms, provisions, covenants and restrictions of this
Contract shall remain in full force and effect and shall in no way be affected,
impaired or invalidated thereby, and, in lieu of such illegal, invalid, or
unenforceable provision, there shall be added automatically as a part of this
Contract a provision as similar in terms to such illegal, invalid, or
unenforceable provision as may be possible and be legal, valid, and enforceable.

                                      -10-
<PAGE>

     23.  Governing Law.  THIS CONTRACT SHALL BE GOVERNED BY AND CONSTRUED IN
          -------------
ACCORDANCE WITH THE LAWS OF THE STATE OF TEXAS WITHOUT REGARD TO THE PRINCIPLES
OF CONFLICTS OF LAW.

     24.  Due Authorization.  The Corporation represents and warrants to
          -----------------
Employee that the Corporation has all necessary legal power and authority to
execute, deliver and perform this Contract, and has taken all necessary action
authorizing the execution, delivery and performance of same.

     25.  Alternative Dispute Resolution.  The parties hereto agree that if a
          ------------------------------
dispute arises under this Contract that they will join in a motion requesting
the court with jurisdiction over the dispute to refer the dispute for resolution
by an alternative dispute resolution procedure as established under Chapter 154
of the Texas Civil Practice and Remedies Code.

     26.  Fees and Expenses.  The parties hereto agree that if a dispute over
          -----------------
the terms or enforcement of this Contract is litigated or is settled by an
alternative dispute resolution procedure, the party that prevails shall be
entitled to recover all fees and expenses incurred in connection with the
dispute, including reasonable fees of attorneys and accountants.

     IN WITNESS WHEREOF, the parties hereto have executed this Contract
effective as of the date first above written.

                    SPLITROCK SERVICES, INC., a Delaware Corporation

                    By:_____________________________________________
                    Name:  William R. Wilson
                    Title: President & CEO


                    ________________________________________________
                    Name:  J. Robert Fugate

                                      -11-

<PAGE>

                                                                   EXHIBIT 10.17

NOTE: Redacted portions have been marked with astericks (***). The redacted
portions are subject to a request for confidential treatment that has been filed
with the Securities and Exchange Commission.

                             COST SHARING NATIONAL
                                 IRU AGREEMENT

     THIS COST SHARING NATIONAL IRU AGREEMENT ("Agreement') is made and entered
into as of the 26th day of April, 1999, (the "Effective Date") by and between
LEVEL 3 COMMUNICATIONS, LLC, a Delaware limited liability company ("Grantor")
and SPLITROCK SERVICES, INC., a Delaware corporation ("Grantee").

                                    RECITALS
                                    --------

     A.  Grantor intends to construct and/or is currently constructing a
nationwide multiconduit fiber optic communications system (the "Grantor System")
consisting of approximately 14,878 miles as depicted on Exhibit "A" which is
                                                        -----------
intended to connect the city pairs described on Exhibit "B".
                                                -----------

     B.  Grantor further intends to install within one (1) of the conduits of
the Grantor System a high fiber count (96 or more fibers) fiber optic cable (the
"Grantor Cable").

     C.  Grantee desires to obtain the right to use a fiber optic communications
system consisting of between four (4) and sixteen (16) fibers connecting the
city pairs described in Exhibit "B".
                        -----------

     D.  Grantor and Grantee can complete their desired communications systems
less expensively if such systems are constructed as part of a single project
than if each system was constructed independently.

     E.  Grantor and Grantee therefore desire to share the costs of constructing
the Grantor System, or certain portions thereof, and, pursuant to such sharing
of costs, Grantor desires to grant to Grantee an indefeasible right to use
certain facilities in the Grantor System, or certain portions thereof, and to
provide maintenance and repair services, all upon and subject to the terms and
conditions set forth below.

                               TERMS OF AGREEMENT
                               ------------------

     Accordingly, in consideration of the foregoing and other good and valuable
consideration, the receipt and sufficiency of which is hereby acknowledged,
Grantor and Grantee hereby agree as follows:
<PAGE>

                                   ARTICLE I
                                  DEFINITIONS
                                  -----------

     1.01  "Acceptance Date" shall mean the date when Grantee delivers (or is
deemed to have delivered) notice of acceptance of the Grantee Fibers with
respect to a Segment in accordance with Article 9.

     1.02  "Acceptance Testing" shall have the meaning set forth in Article 8.

     1.03  "Access Points" shall have the meaning set forth in Section 10.01.

     1.04  "Affiliate" shall mean, with respect to any specified Person, any
other Person that directly or indirectly, through one or more intermediaries,
controls, is controlled by, or is under common control with, such specified
Person ("control," "controlled by" and "under common control with" shall mean
the possession, directly or indirectly, of the power to direct or cause the
direction of the management and policies of a Person, whether through ownership
of voting securities, by contract or credit arrangement, as trustee or executor,
or otherwise).

     1.05  "Associated Property" shall mean the tangible and intangible property
needed for the use of the Grantee Fibers as permitted by this Agreement,
including, at Grantee's option, designated space in the Facilities, as and to
the extent more particularly described in this Agreement, but excluding in any
and all events any electronic and/or optronic equipment.

     1.06  "Commencement Date" shall mean December 1, 1999 or such earlier date
as designated by Grantee.

     1.07  "Completion Notice" shall have the meaning set forth in Section 9.01.

     1.08  "Costs" shall mean the actual direct costs paid or payable in
accordance with the established accounting procedures generally used by Grantor
and which Grantor utilizes in billing third parties for reimbursable projects,
including the following: (i) internal labor costs, including wages, salaries,
benefits and overhead (provided that overhead shall not exceed (***) of wages,
salaries and benefits), and (ii) other direct costs and out of pocket expenses
on a direct pass-through basis.

     1.09  "Dispute Notice" shall have the meaning set forth in Article 24.

     1.10  "Effective Date" shall have the meaning set forth in the introduction
to this Agreement.

     1.11  "Financing Documents" shall have the meaning set forth in Section
4.04.

     1.12  "Facilities" shall mean, collectively, the Regeneration Facilities,
Opamp Facilities and Terminal Facilities.


                                                    Confidential and Proprietary

                                       2
<PAGE>

     1.13  "Facilities Contribution" shall have the meaning set forth in Section
7.03.

     1.14  "Force Majeure Event" shall have the meaning set forth in Article 19.

     1.15  "Governmental Authority" shall mean any federal, state, regional,
county, city, municipal, local, territorial, or tribal government, whether
foreign or domestic, or any department, agency, bureau or other administrative
or regulatory body obtaining authority from any of the foregoing, including
without limitation, courts, public utilities and sewer authorities.

     1.16  "Grantee Delay Event" shall mean the failure of Grantee to secure any
required municipal franchises or permits.

     1.17  "Grantee Fibers" shall mean (i) the Initial Fibers, and if the Option
is exercised with respect thereto, (***),

     1.18  "Grantor Cable" shall have the meaning set forth in the Recitals.

     1.19  "Grantor System" shall have the meaning set forth in the Recitals.

     1.20  "Grantor Termination Point" shall have the meaning set forth in
Section 2.02.

     1.21  "Hotel" shall mean a building in which a point or points of presence
of inter-exchange carrier(s) is/are located.

     1.22  "Impositions" shall mean all taxes, fees, levies, imposed duties,
charges or withholdings of any nature (including without limitation ad valorem,
real property, gross receipts, taxes and franchise, license and permit fees),
together with any penalties,  fines or interest thereon arising out of the
transactions contemplated by this Agreement and/or imposed upon the Grantor
System or any part thereof, by any Governmental Authority.

     1.23  "Initial Fibers" shall have the meaning set forth in Section 3.01.

     1.24  "IRU" shall have the meaning set forth in Article 3.

     1.25  "IRU Contribution" shall have the meaning set forth in Section 4.01.

     1.26  "IRU Effective Date" shall have the meaning set forth in Section
5.02.

     1.27  "Monthly Charge" shall have the meaning set forth in Section 13.02.

     1.28  "Minimum Period" shall mean, with respect to each Segment, a period
of twenty (20) years from the Acceptance Date for such Segment.


                                                    Confidential and Proprietary

                                       3
<PAGE>

     1.29  "Opamp Facilities" shall mean facilities to optically amplify lit
fibers as more particularly described in Exhibit "H".
                                         -----------

     1.30  "Option" shall have the meaning set forth in Section 3.02.

     1.31  (***), shall have the meaning set forth in Section (***),

     1.32  "Party" shall mean each of Grantor and Grantee, and "Parties" shall
mean both Grantor and Grantee.

     1.33  "Person" shall mean any natural person, corporation, partnership,
limited liability company, business trust, joint venture, association, company
or Governmental Authority.

     1.34  (***), shall have the meaning set forth in Section (***),

     1.35  "Relevant Rate" shall mean, as of any relevant date hereunder the
(***),

     1.36  "Proprietary Information" shall have the meaning set forth in Section
23.01.

     1.37  "Regeneration Facilities" shall mean facilities to regenerate the
signal of lit fibers as more particularly described in Exhibit "H".
                                                       -----------

     1.38  "Relocating Authority" shall have the meaning set forth in Section
6.04.

     1.39  "Required Rights" shall have the meaning set forth in Section 6.01.

     1.40  "Required Right Payment" shall mean any payment which Grantor is
required to make to the grantor or provider of a Required Right.

     1.41  "Route Miles" shall mean, for each Segment, the actual number of
route miles for such Segment as constructed and based upon the As Built Drawings
described in Exhibit "F", (***).
             -----------

     1.42  "Scheduled Completion Date" shall mean, with respect to each Segment,
the dates specified on Exhibit "B".
                       -----------

     1.43  (***), shall have the meaning set forth in Section (***),

     1.44  "Segments" shall have the meaning set forth in Section 2.01.

     1.45  "Segment End Points" shall have the meaning set forth in Section
2.01.

     1.46  "System Route" shall have the meaning set forth in Section 2.01.


                                                    Confidential and Proprietary

                                       4
<PAGE>

     1.47  "Term" shall have the meaning set forth in Section 5.02.

     1.48  "Terminal Facilities" shall mean facilities that would otherwise be
Regeneration Facilities or Opamp Facilities except that they serve as a Segment
End Point for more than two (2) Segments.

     1.49  (***), shall have the meaning set forth in Section (***),

     1.50  "Utility Charge" shall have the meaning set forth in Section 13.02.


                                   ARTICLE 2.
                                  SYSTEM ROUTE
                                  ------------

     2.01  The Grantor System will connect the city pairs identified on Exhibit
                                                                        -------
"B" (each city identified on Exhibit "B", or a location in reasonably close
- ---                          -----------
proximity (in Grantor's reasonable discretion) to such city, is herein called a
"Segment End Point", the route between the applicable Segment End Points is
herein called a "Segment", all of the Segments together are herein called the
"System Route").  The System Route is currently estimated to consist of
approximately 14,878 Route Miles; however, the Parties acknowledge that such
estimated number of Route Miles may change during the course of construction.
Until the delivery of the As Built Drawings described in Exhibit "F", all
                                                         -----------
payments of the IRU Contribution by Grantee shall be based upon the estimated
Route Miles described on Exhibit "B"; following the delivery of such As Built
                         -----------
Drawings, the IRU Contribution, the Monthly Charge and any other cost or expense
hereunder based upon mileage shall be appropriately adjusted between the Parties
to reflect the actual Route Miles.

     2.02  The Grantee Fibers will connect at each Segment End Point in the
Facilities or a Hotel (i) for shared space, to the fiber optic patch panel, and
(ii) for segregated space into the Grantee designated space (each a "Grantor
Termination Point").


                                   ARTICLE 3.
                                  GRANT OF IRU
                                  ------------

     3.01  As of the IRU Effective Date for each Segment delivered by Grantor or
Grantee hereunder, Grantor hereby grants to Grantee, and Grantee hereby acquires
from Grantor (i) an exclusive indefeasible right of use in, for the purposes
described herein, (***), dark fibers in the Grantor Cable (as specifically
identified in the Completion Notice for such Segment) between the Segment End
Points for such Segment (the "Initial Fibers"), and (ii) an associated and non-
exclusive indefeasible right of use, to the extent and for the purposes
described herein, in the Associated Property, respecting such Segment, all upon
and subject to the terms and conditions set forth herein (collectively the
"IRU").


                                                    Confidential and Proprietary

                                       5
<PAGE>

     3.02  Subject to the conditions set forth in this Section, Grantee shall
have the option (the "Option") to extend the IRU (***), as follows:  (***),  The
IRU with respect to any Option Fibers in a Segment shall commence as of the IRU
Effective Date for such Segment.  (***),

     3.03  In the event Grantor shall elect to expand the Grantor System by
adding one or more additional routes or to otherwise enhance the Grantor System,
Grantee shall have the opportunity to participate in such expansion or
enhancement subject to (i) Grantors discretion, taking into account Grantor's
own business needs, plans, requirements and any other matters deemed relevant by
Grantor, in its sole discretion, including without limitation, the physical
constraints of the Grantor System, and (ii) the mutual agreement of Grantor and
Grantee as to the allocation of costs among participants in such expansion or
enhancement.


                                   ARTICLE 4.
                                 CONTRIBUTIONS
                                 -------------

     4.01  Grantee agrees to make the following contributions to Grantor for the
construction of the Grantor System based upon the aggregate number of actual
Route Miles of the Grantor System and the number of Grantee Fibers (collectively
the "IRU Contribution"):

     Number of Grantee Fibers           Contribution Per Route Mile
     -------------------------          ---------------------------

     (***),                             (***),

Notwithstanding the foregoing, if on or before the Commencement Date, Grantee
shall exercise the Option with respect to any Option Fibers, Grantee thereby
automatically and irrevocably waives the opportunity to finance with Grantor a
portion of the IRU Contribution with respect to the Initial Fibers (as described
in Section 4.04), the contribution per Route Mile for the Initial Fibers and
(***), Option Fibers shall be reduced from (***),

     4.02  In addition to the IRU Contribution, Grantee shall pay directly or
reimburse Grantor for all other sums, costs, fees and expenses which are
expressly provided to be paid by Grantee under this Agreement, including without
limitation, the Facilities Contribution, the Monthly Charge, and the Utility
Charge.

     4.03  The IRU Contribution shall be due from Grantee to Grantor with
respect to the Initial Fibers in each Segment as follows:  (***),  Grantee shall
pay the IRU Contribution to Grantor with respect to the Option Fibers in each
Segment as follows:  (***),

     4.04  Notwithstanding Section 4.03 above, Grantee may elect, with respect
to the IRU Contribution due with respect to the Initial Fibers only in each
Segment (***), subject to the conditions set forth below, to (i) pay (***), and
(iv) finance with Grantor (***),  Any election by Grantee shall be subject to
the execution and delivery of notes, credit agreements, security agreements,
guarantees and other financing instruments and documents mutually agreeable to


                                                    Confidential and Proprietary

                                       6
<PAGE>

both Grantor and Grantee (the "Financing Documents").  The Financing Documents
would include, but not be limited to, the general terms and conditions set forth
on Exhibit "E" attached hereto.  Any election to finance a portion of the IRU
   -----------
Contribution payable with respect to the Initial Fibers in any Segment shall be
made by Grantee by written notice to Grantor delivered on or before the
Commencement Date.  In the event mutually agreeable Financing Documents have not
been entered into between Grantor and Grantee prior to the Commencement Date,
the IRU Contribution payable with respect to the Initial Fibers in such Segment
shall be paid in accordance with Section 4.03.  The IRU Contribution payable
with respect to any Option Fibers shall in all events be paid in accordance with
Section 4.03.

     4.05  No invoices for payments of the IRU Contribution or any installments
payable by Grantee under the Financing Documents or payments of the one-time
Facilities Contribution, after an initial invoice, shall be required to be
delivered to Grantee.  Grantor will send Grantee invoices for payments of the
Monthly Charge, the Utility Charge, the recurring Facilities Contribution and
all other sums, costs, fees and expenses owed by Grantee to Grantor hereunder
and Grantee shall pay such invoiced amounts within thirty (30) days after
receipt of such invoice by Grantee.  Any sums not paid by Grantee when due shall
bear interest at the Relevant Rate.


                                   ARTICLE 5.
                                      TERM
                                      ----

     5.01  (***),

     5.02  The IRU with respect to each Segment shall become effective on (***),
when both the Acceptance Date for such Segment has occurred and Grantor has
received payment of all of the IRU Contribution and Facilities Contribution then
due to the Grantor hereunder (the "IRU Effective Date").  Subject to the
provisions of Articles 6 and 20, the IRU with respect to each Segment shall
terminate at the expiration of the twenty (20) year Minimum Period of such
Segment commencing with the Acceptance Date for such Segment, unless Grantor
permits an extension of the IRU pursuant to Section 5.03 (the "Term").

     5.03  In the event Grantor shall not have substituted alternative dark
fibers for the Grantee Fibers in a Segment in accordance with Section 11.03 and
in the event Grantor shall determine that the Grantee Fibers with respect to
such Segment have an economic useful life greater than the Minimum Period and
shall give written notice of such determination to Grantee (***), the expiration
of the Minimum Period, Grantee shall have the option to extend the Term of such
Segment for the remaining balance of the economic useful life as determined by
Grantor, subject however to: (i) the continued validity and efficacy of the
Required Rights (Grantor making no representation that the Required Rights shall
extend beyond the expiration of the Minimum Period), and (ii) the right of
Grantor to adjust the Monthly Charge in accordance with Section 13.05.  If the
Term of a Segment is so extended beyond the Minimum Period and Grantee shall
thereafter fail to use all of the Grantee Fibers within such Segment for a
(***), the Term shall terminate and expire with respect to the Grantee Fibers
and Associated Property in


                                                    Confidential and Proprietary

                                       7
<PAGE>

such Segment and all rights to the use thereof shall revert to Grantor without
reimbursement of any of the IRU Contribution or other sums, costs, fees or
expenses previously made with respect thereto, and from and after such time
Grantee shall have no further rights or obligations hereunder with respect
thereto unless such rights or obligations are specifically provided herein to
survive the Term.

     5.04  Grantor and Grantee acknowledge and agree that Grantee shall be
treated for federal and all applicable state tax purposes as the exclusive
beneficial owner of the Grantee Fibers.  Grantor and Grantee further acknowledge
and agree that the transactions contemplated by this Agreement constitute, for
federal and applicable state tax purposes, a joint undertaking to share and
minimize the expense of constructing each Party's respective communications
systems, and not as a separate entity or as a sale or lease.  Grantor and
Grantee shall file (or caused to be filed with respect to any consolidated
returns) their respective tax returns and other returns and reports for their
respective Impositions on such basis and, except as otherwise required by law,
not take any positions inconsistent therewith.

     5.05  This Agreement shall become effective on the Effective Date and shall
terminate on the date when all the Terms of the Segments shall have expired or
terminated, except for those provisions of this Agreement which are expressly
provided herein to survive such termination shall remain binding on the Parties
hereto.


                                   ARTICLE 6.
                                REQUIRED RIGHTS
                                ---------------

     6.01  Grantor agrees to obtain and maintain in full force and effect for
and during the Minimum Period of each Segment all rights, licenses, permits,
authorizations, rights-of-way, easements and other agreements which are
necessary for the use of poles, conduit, cable, wire or other physical plant
facilities, as well as any such rights, licenses, authorizations (including
without limitation, any necessary federal, state or tribal authorizations and
any environmental permits) in order to permit Grantor to construct, install and
keep installed, and maintain the Grantor System including the Grantee Fibers,
within such Segment along the System Route in accordance with this Agreement and
to provide Grantee with the IRU (collectively, the "Required Rights").

     6.02  In the event that after the Term of a Segment has been extended
beyond the Minimum Period in accordance with Article 5, a Required Right shall
expire or otherwise terminate, the Term of the IRU with respect to such Segment
and the Grantee Fibers within such Segment or any portion thereof affected
thereby, shall likewise automatically expire and terminate; provided, in the
event Grantor shall extend or renew such Required Right (whether by the exercise
of any option in favor of Grantor or otherwise), at Grantee's option, and
subject to any adjustment to the Monthly Charge pursuant to Section 13.05, the
Term shall continue with respect to the Grantee Fibers within such Segment or
portion thereof until the end of the economic life of the Grantee Fibers as
determined by Grantor in accordance with Section 5.03, or


                                                    Confidential and Proprietary

                                       8
<PAGE>

until the subsequent expiration or termination of such Required Right, whichever
occurs first. Except for any termination of this Agreement authorized under
Article 20, Grantor shall provide Grantee at least sixty (60) days prior written
notice of the expiration of the Term of each Segment.

     6.03  In the event Grantor shall receive notice from any grantor or
provider of a Required Right that Grantor has failed to observe or perform its
obligations under such Required Right, and Grantor is not contesting the
validity of such claimed or alleged failure, in good faith, Grantor shall
promptly give written notice to Grantee and Grantee may, at its option (subject
to the terms and provisions of the Required Right and the ability of third
parties to cure defaults of Grantor thereunder), cure or correct such failure
and Grantor shall reimburse Grantee for the costs and expenses incurred by
Grantee in connection therewith.

     6.04  Notwithstanding anything contained herein to the contrary, if after
the Acceptance Date with respect to a Segment, Grantor is required (i) by any
Governmental Authority under the power of eminent domain or otherwise, (ii) by
the grantor or provider of any Required Right, (iii) by any other Person having
the authority to so require (each a "Relocating Authority"), or (iv) by the
occurrence of any Force Majeure Event, to relocate the Grantor System within
such Segment or any portion thereof, including any of the facilities used or
required in providing the IRU, Grantor shall have the right to proceed with such
relocation, including, but not limited to, the right, in good faith, to
reasonably determine the extent and timing of, and methods to be used for such
relocation; provided that (a) Grantor shall coordinate with Grantee and keep
Grantee fully informed of all determinations made by Grantor in connection with
such relocation, and (b) any such relocation shall be constructed in accordance
with the construction specifications set forth in Exhibit "F", incorporate fiber
                                                  -----------
meeting or exceeding the specifications set forth in Exhibit "G" and be subject
                                                     -----------
to Acceptance Testing and (c) Grantor shall use commercially reasonable good
faith efforts to minimize any interference with or interruption of use of the
Grantee Fibers.  Grantee shall have the right, but not the obligation, to have
Grantee representatives present to observe any such relocation.  Unless such
relocation is caused by Grantor's default or breach of the term and provisions
of a Required Right, Grantee shall reimburse Grantor for its proportionate share
of the Costs (including Acceptance Testing) of such relocation (to the extent
Grantor has not been reimbursed by the Relocating Authority) based on the number
of Grantee Fibers and the total fiber count in such affected Segment.


                                   ARTICLE 7.
                       CONSTRUCTION OF THE GRANTOR SYSTEM
                       ----------------------------------

     7.01  Grantor will design, engineer, install, construct and test the
Grantee Fibers in accordance with the terms and subject to the conditions set
forth in this Agreement, including the construction specifications set forth in

Exhibit "F", in a workmanlike manner and in accordance with industry standards
- -----------
and all applicable building, construction and safety codes for such construction
and installation, as well as all applicable governmental laws, codes,
ordinances, statutes and regulations.  Such responsibilities shall include,
without limitation, preparation of


                                                    Confidential and Proprietary

                                       9
<PAGE>

construction drawings, materials specifications and materials requisitions. The
Grantee Fibers shall meet or exceed the fiber specifications set forth in
Exhibit "G".
- -----------

     7.02  Grantor will, at Grantor's cost, procure all materials to be
incorporated in and to become a permanent part of the Grantor System, excluding
electronic, optronic and other equipment to be used by Grantee in connection
with the Grantee Fibers.

     7.03  Grantor will, upon the written request of Grantee (which request must
be delivered to Grantor within sixty (60) days after the Effective Date),
provide Grantee during the Term with segregated space in the Facilities along
the System Route for placement of Grantee's electronic and optronic equipment.
Grantee shall be provided either approximately (***), of space or approximately
(***), of space in any Regeneration Facility or Opamp Facility and approximately
(***), in any Terminal Facility.  Grantee shall pay to Grantor, within three (3)
banking days after the Acceptance Date of a Segment, (provided, Grantee may
defer such payment to the Commencement Date), the following one-time fees for
each Facility to be occupied by Grantee along such Segment based upon the number
of square feet of space to be provided to Grantee (collectively the "Facilities
Contribution"):

     approximately (***),:              (***),
     approximately (***),:              (***),
     approximately (***),:              (***),

     7.04  In lieu of the segregated space described in Section 7.03, Grantor
will, upon the written request of Grantee (which request must be delivered to
Grantor within sixty (60) days after the Effective Date, provide Grantee during
the Term with shared space in Regeneration Facilities, Opamp Facilities and
Terminal Facilities along the System Route for the placement of Grantee's
electronic and optronic equipment; such space shall be sufficient for the
placement of up to (***), equipment racks or cabinets (depending upon
configuration) in the Regeneration Facilities and Opamp Facilities and up to
(***), equipment racks or cabinets in the Terminal Facilities.  Grantee shall
pay to Grantor for such shared space either (***), within three (3) business
days after the Acceptance Date of a Segment where Grantee will be occupying such
shared space, or (ii) (***), throughout the Term of such Segment.

     7.05   Notwithstanding anything contained herein to the contrary, if the
Term of any Segment is extended beyond the Minimum Period pursuant to Sections
5.03 or 6.02 and Grantor's rights to occupy or use any Regeneration Facility,
Opamp Facility or Terminal Facility shall terminate or expire at any time after
the expiration of the Minimum Period (whether by virtue of the expiration of any
lease or otherwise), Grantee's rights to use and occupy space in such
Regeneration Facility, Opamp Facility or Terminal Facilities shall likewise
terminate and expire.

     7.06  Grantor and Grantee will mutually consult with each other from time
to time upon request to attempt to coordinate construction of the Grantor System
with other network construction which may be undertaken by Grantee.


                                                    Confidential and Proprietary

                                       10
<PAGE>

     7.07  During the course of construction of each Segment Grantor will
prepare and provide to Grantee (***), a construction schedule and progress
reports.  Subject to the terms and provisions of any applicable Required Right,
Grantee shall have the right, but not the obligation, at Grantee's cost and
expense on at least five (5) days prior written notice to Grantor, to inspect
the construction of each such Segment, including the installation, splicing and
testing of the Grantee Fibers incorporated therein.  No inspection or failure to
inspect by Grantee shall impair, modify or amend any of the representations,
warranties, covenants and agreements of Grantor under this Agreement.

     7.08  Grantor shall make available to Grantee for inspection by Grantee
copies of all information documents, agreements, reports, permits, drawings and
specifications generated, obtained or acquired by Grantor in performing its
duties pursuant to this Article 7 that are material to the grant of the IRU to
Grantee, including the Required Rights, provided that the terms of each such
document or the legal restrictions applicable to such information or document
permits disclosure to Grantee and provided that Grantor does not deem such
information or document confidential.

     7.09  Notwithstanding anything to the contrary contained herein, Grantor
may elect, at its option, to acquire any portion of the Grantor System from
third parties (whether under a lease, sublease, indefeasible right of use, or
otherwise) in lieu of constructing and installing the Grantor System respecting
such portion; provided, any such acquired portion shall have been constructed in
accordance with the specifications and procedures required by this Agreement
except for such deviations which do not, in the reasonable discretion of
Grantor, materially diminish the value, utility, reliability or expected useful
life of the Grantor System; provided, Grantor's obligations under this Agreement
with respect to any such acquired portions of the Grantor System shall remain in
full force and effect as though originally constructed and installed by Grantor.


                                   ARTICLE 8.
                               ACCEPTANCE TESTING
                               ------------------

     Grantor shall test the Grantee Fibers in accordance with the procedures and
standards specified in Exhibit "I" ("Acceptance Testing").  Acceptance Testing
                       -----------
shall progress span by span along each Segment as cable splicing progresses, so
that test results may be reviewed in a timely manner.  Grantee shall have the
right, but not the obligation, to have representatives present to observe such
testing.  When Grantor has determined that the results of the Acceptance Testing
with respect to a particular span show that the Grantee Fibers so tested are
installed and operating substantially in conformity with the applicable
specifications set forth in Exhibit "I", Grantor shall provide Grantee with a
copy of such test results.  Grantee shall have the right, but not the
obligation, at its expense, to conduct its own Acceptance Testing of the Grantee
Fibers within fifteen (15) days after delivery of such test results.


                                                    Confidential and Proprietary

                                       11
<PAGE>

                                   ARTICLE 9.
                                   COMPLETION
                                   ----------

     9.01  When Grantor reasonably determines the Grantee Fibers with respect to
a Segment are installed and operating in accordance with the applicable
specifications set forth in Exhibits "F", "G", "H" and "I", Grantor shall
                            -------------------------------
provide written notice of same to Grantee (a "Completion Notice").  Grantee
shall, within fifteen (15) days of receipt of the Completion Notice, either
accept or reject the Grantee Fibers (specifying, in reasonable detail, if
rejected, the defect or failure in the Acceptance Testing and/or the items or
matters to be remedied) by delivery of written notice to Grantor.  In the event
Grantee rejects the Grantee Fibers, Grantor shall promptly, and at no cost of
Grantee, commence to remedy the defect or failure specified in Grantee's notice.
Thereafter Grantor shall again give Grantee a Completion Notice with respect to
such Segment.  The foregoing procedure shall apply again and successively
thereafter until Grantor has remedied all defects or failures specified by
Grantee.  Any failure by Grantee to timely reject the Grantee Fibers shall be
deemed to constitute acceptance for purposes of this Agreement and Grantee shall
be deemed to have delivered a notice of acceptance on the fifteenth day after
delivery of the Completion Notice.

     9.02  Grantee shall not be required to accept any temporary fibers or
temporary shelters constructed or installed by Grantor along the System Route.
Should Grantor utilize temporary fibers or temporary buildings, Grantee may, in
it's sole discretion, accept such fibers or buildings on a temporary basis;
however, Grantor shall be responsible for any and all costs associated with
moving Grantee to permanent fibers or permanent buildings as soon as
commercially practicable and such move shall be conducted pursuant to the same
terms and conditions set forth herein for relocation.

     9.03  Notwithstanding any acceptance of the Grantee Fibers by Grantee, if
it is subsequently determined that any Facilities were in fact not fully
completed (with all associated amenities) such that Grantee shall not have
beneficial use of the Grantee Fibers, then Grantee shall not be required to pay
any Monthly Charges, Utility Charges, or recurring Facilities Contributions with
respect to such Facilities until they are completed (and Grantee shall be
entitled to a credit for any such contributions or charges previously paid).


                                  ARTICLE 10.
                                    ACCESS
                                    ------

     10.01  Grantor shall provide Grantee with access to, and Grantee shall have
the right to interconnect its communications system with, the Grantee Fibers at
the Grantor Termination Points and, subject to applicable laws and regulations
and the terms of the Required Rights, at other technically feasible access
points which may be established by Grantor along the System Route (the "Access
Points").  The specific location of such Access Points shall be determined by
Grantor during the design, engineering and permitting phases of construction.
In the event that Grantee desires to obtain an Access Point at any particular
location along the System Route,


                                                    Confidential and Proprietary

                                       12
<PAGE>

Grantee shall notify Grantor in writing and Grantor will evaluate the request
and use reasonable good faith efforts to accommodate Grantees request, provided
Grantee shall reimburse Grantor for all Costs incurred by Grantor in connection
therewith. Notwithstanding the foregoing, no Access Points shall be provided to
Grantee along that portion of the Grantor System located in Canada unless and
until Grantor and Grantee shall each have obtained authorization to do so by any
controlling Governmental Authority.

     10.02  Grantor shall determine the exact locations of the Facilities and,
subject to Grantor's applicable security procedures and such access restrictions
and limitations as may be set forth in any applicable Required Rights, Grantee
shall have access to the Facilities used and occupied by Grantee hereunder
twenty-four (24) hours per day, seven (7) days per week.

     10.03  Grantor may route the Grantee Fibers through Grantor's space in any
Facilities, in Grantor's sole discretion; provided such routing shall not
materially adversely affect Grantee's use of the Grantee Fibers or Associated
Property hereunder and Grantor shall be responsible for all costs and expenses
associated therewith.

     10.04  Following the Acceptance Date and during the Term, Grantor shall
have the right to control all activities concerning the Grantor System,
including, without limitation, the splicing of the Grantee Fibers at all of the
Access Points, Grantor Termination Points, and Facilities and, unless the cost
and expense thereof is imposed upon Grantor or otherwise allocated differently
under the terms of this Agreement, Grantee shall reimburse Grantor for all Costs
incurred by Grantor in connection therewith.


                                  ARTICLE 11.
                                  OPERATIONS
                                  ----------

     11.01  Grantee shall have full and complete control and responsibility for
determining any network and service configuration or designs, routing
configurations, re-grooming, rearrangement or consolidation of channels or
circuits and all related functions with regard to the use of the Grantee Fibers;
provided, such control and responsibility by Grantee shall not adversely affect
the use by any other Person of the Grantor System and/or any electronic or
optronic equipment used by such Person in connection therewith, and any movement
or relocation of the Grantee Fibers shall be undertaken only by or at the
direction of Grantor and in accordance with the procedures described in Section
6.04, and, unless the cost and expense thereof is imposed upon Grantor or
otherwise allocated differently under the term of this Agreement, Grantee shall
reimburse Grantor for all Costs incurred by Grantor in connection therewith.

     11.02  Grantee acknowledges and agrees that except for the items included
as a part of the Facilities as described on Exhibit "H" which are used and
                                            -----------
occupied by Grantee pursuant to Section 7.03 and 7.04.  Grantor is not supplying
nor is Grantor obligated to supply to Grantee any optronics or electronics or
optical or electrical equipment or related facilities, all of which


                                                    Confidential and Proprietary

                                       13
<PAGE>

are the sole responsibility of Grantee, nor is Grantor responsible for
performing any work or services other than as specified in this Agreement.

     11.03  Upon not less than (***), written notice from Grantor to Grantee,
Grantor may at its option substitute for the Grantee Fibers within any Segment
or Segments, or any portions thereof, an equal number of alternative dark fibers
within such Segment or portion thereof (which alternative dark fibers shall
thereupon constitute Grantee Fibers hereunder), provided that in such event,
such substitution (i) shall be effected at the sole cost of Grantor, including,
without limitation, all disconnect and reconnect costs, fees and expenses; (ii)
shall be constructed in accordance with the specifications and procedures set
forth in Exhibits "F" and "H", incorporate fiber meeting or exceeding the
         ---------------------
specifications set forth in Exhibit "G", and be tested in accordance with the
                            -----------
Acceptance Testing; (iii) shall not change any Grantor Termination Points or
other Access Points; and (iv) shall otherwise be conducted in accordance with
the procedures described in Section 6.04.  Notwithstanding anything to the
contrary contained in this Agreement, in the event of any substitution of
Grantee Fibers under this Section 11.03, the Term of the Segment or Segments
where such substitution was effected shall in all events terminate and expire at
the end of the Minimum Period.


                                  ARTICLE 12.
                  MAINTENANCE AND REPAIR OF THE GRANTOR SYSTEM
                  --------------------------------------------

     From and after the Acceptance Date with respect to each Segment, the
maintenance of the Grantor System within such Segment shall be provided in
accordance with the maintenance requirements and procedures set forth in Exhibit
                                                                         -------
"J" attached hereto.  The costs of all Scheduled Maintenance (as defined in
- ---
Exhibit "J") of the Grantee Fibers shall be provided by Grantor as a part of the
- -----------
Monthly Charge; however, Grantee shall reimburse Grantor for its proportionate
share of the Costs of any Unscheduled Maintenance (as defined in Exhibit "J")
                                                                 -----------
and repair and/or restoration of the Grantee Fibers based on the number of
affected Grantee Fibers and the total number of affected fibers in such Segment.


                                  ARTICLE 13.
                               RECURRING CHARGES
                               -----------------

     13.01  Grantor shall be responsible for the payment of:  (i) the Required
Right Payments, (ii) the costs of Scheduled Maintenance of the Grantor System,
and (iii) real estate taxes, if any, insurance premiums, utility costs and
charges, and rents or other payments associated with the Regeneration
Facilities, Opamp Facilities and Terminal Facilities.

     13.02  In consideration of Grantor's responsibilities under Article 12,
subject to the adjustments described in Sections 13.03 through 13.05 (i) Grantee
shall pay to Grantor on the first (1st) day of each calendar month, in advance,
with respect to each Segment, commencing with the Acceptance Date of such
Segment and continuing until the expiration of the Term of the


                                                    Confidential and Proprietary

                                       14
<PAGE>

IRU with respect to such Segment, (***), per Route Mile (for up to (***),
Grantee Fibers) and (***), per Route Mile (for (***), Grantee Fibers) (the
"Monthly Charge"); and (ii) Grantee shall pay to Grantor each month, with
respect to each Segment, commencing with the Acceptance Date of such Segment and
continuing until the expiration of the Term of the IRU with respect to such
Segment, a pro rata share of the utility costs and charges incurred in
connection with the operation of the Facilities, based, (a) with respect to
segregated space occupied by Grantee, on the number of square feet occupied by
Grantee in such facility and the total number of square feet in such facility,
or (b) with respect to shared space utilized by Grantee, on the number of racks
or cabinets used by Grantee in such facility and the total number of racks or
cabinets which are intended to be accommodated in such facility (the "Utility
Charge").

     13.03   The Monthly Charge shall be increased on each anniversary of the
first (lst) Acceptance Date of the Segments by the increase, if any, in the
Consumer Price Index, All Urban Consumers (CPI-U), U.S. City Average, published
by the United States Department of Labor, Bureau of Labor Statistics (1982-84 =
100), for the preceding twelve (12) month period.  In the event such index shall
cease to be computed or published, Grantor may, in its reasonable discretion,
designate a successor index to be used in determining any increase to the
Monthly Charge.

     13.04   In the event Grantor believes that the actual cost associated with
Grantee's use of utility services at the Facilities exceeds the Utility Charge
being paid by Grantee, or if Grantee believes the Utility Charge exceeds the
actual cost associated with Grantee's use of such utility services, subject to
any limitations which may be imposed by the grantor or provider of the
applicable Required Right or the relevant utility, Grantor may, at its expense,
cause any utility service to be separately metered or submetered and in such
event Grantee shall pay to Grantor, as the Utility Charge, the actual cost of
such utility services used by Grantee based on such meter(s) or submeter(s).

     13.05  In the event the Term is extended beyond the Minimum Period in
accordance with Section 5.02 or in the event Grantor shall extend or renew a
Required Right under Section 6.02 beyond the Minimum Period, and Grantee elects
in either instance to continue the Term of the Segment or portion thereof,
Grantor shall have the right to increase the Monthly Charge in order to reflect,
in Grantor's reasonable discretion, a pass-through (on a pro rata basis among
all Persons using such Segment or portion thereof based on  fiber count) of any
increase in the Required Right Payments incurred or to be incurred by Grantor in
connection herewith.

     13.06  The Monthly Charge shall be due and payable on the first day of each
calendar month without notice or demand by Grantor.  In the event the Acceptance
Date or expiration of the Term of a Segment occurs other than on the first day
of a calendar month, the Monthly charge shall be prorated.  The Utility Charge
shall be paid within thirty (30) days after invoice from Grantor.


                                                    Confidential and Proprietary

                                       15
<PAGE>

                                  ARTICLE 14.
                                  IMPOSITIONS
                                  -----------

     14.01  Grantor and Grantee acknowledge and agree that it is their mutual
objective and intent to (i) minimize, to the extent feasible, the aggregate
Impositions payable with respect to the Grantor Systems and the Grantee Fibers
and (ii) share such Impositions according to their respective interests in the
Grantor Systems and the Grantee Fibers, and that they will cooperate with each
other and coordinate their mutual efforts to achieve such objectives in
accordance with the provisions of this Article 14.

     14.02  Grantor shall be responsible for and shall timely pay any and all
Impositions with respect to the construction or operation of the Grantor System
which Impositions are imposed or assessed prior to the Acceptance Date of a
Segment.  Notwithstanding the foregoing obligations, Grantor shall have the
right to challenge any such Impositions so long as the challenge of such
Impositions does not materially adversely affect the rights to be delivered to
Grantee pursuant hereto.

     14.03  Following the Acceptance Date for the Grantor System and except with
respect to Impositions constituting ad valorem property taxes levied against the
Grantee Fibers (which are addressed in Section 14.04 below), Grantor shall
timely pay any and all Impositions imposed upon or with respect to the Grantor
System to the extent such Impositions have not been or may not feasibly be
separately assessed or imposed upon or against the respective interests of
Grantor and Grantee in the Grantor System.  Upon receipt of a notice of any such
Imposition, Grantor shall promptly notify Grantee of such Imposition and Grantee
shall pay or reimburse Grantor for its proportionate share of such Imposition,
which share shall be determined (i) to the extent possible, based upon the
manner and methodology used by the particular Governmental Authority imposing
such Imposition (e.g., on the cost of the relative property interests, historic
                 ----
or projected revenue derived therefrom, or any combination thereof); or (ii) if
the same cannot be so determined, then based upon Grantee's proportionate share
of the total fiber count in the affected portion of the Grantor System.

     14.04  Following the Acceptance Date for each Segment and except to the
extent prohibited by applicable laws or regulations, Grantee shall separately
file all required returns, renditions or other forms and pay any and all ad
valorem property taxes imposed on or assessed against the Grantee Fibers in such
Segment.  In the event that applicable laws or regulations require Grantor to
file returns for and pay any and all ad valorem property taxes imposed on or
assessed against the Grantee Fibers, Grantor shall do so and Grantor shall be
entitled to reimbursement from Grantee (under Section 14.03) for the ad valorem
property tax payments made respecting the Grantee Fibers.

     14.05  Notwithstanding any provision herein to the contrary, Grantor shall
have the right to contest any Imposition described in Section 14.03 above,
(including by nonpayment of such Imposition provided such nonpayment does not
materially adversely affect the rights to be delivered to Grantee pursuant
hereto).  The out-of-pocket costs and expenses (including


                                                    Confidential and Proprietary

                                       16
<PAGE>

reasonable attorney fees) incurred by Grantor in any such contest shall be
shared by Grantor and Grantee in the same proportion as to which the Parties
would have shared in such Impositions, as they were originally assessed. Any
refunds or credits resulting from a contest brought pursuant to this Section
14.05 shall be divided between Grantor and Grantee in the same proportion as to
which such refunded or credited Impositions were borne by Grantor and Grantee.

     14.06  Grantor and Grantee agree to cooperate fully in the preparation of
any reports that must be filed jointly relating to the Impositions.  Grantor and
Grantee further acknowledge and agree that the provisions of this Article 14 are
intended to allocate the Impositions expected to be assessed against or imposed
upon the Parties with respect to the Grantor System based upon the procedures
and methods of computation by which Impositions generally have been assessed and
imposed to date, and that material changes in the procedures and methods of
computation by which such assessments are assessed and imposed could
significantly alter the fundamental economic assumptions underlying the
transactions hereunder to the Parties.  Accordingly, Grantor and Grantee agree
that, if in the future the procedures or methods of computation by which
Impositions are assessed or imposed against the Parties change materially from
the procedures or methods of computation by which they are imposed as of the
date hereof, the Parties will negotiate in good faith an amendment to the
provisions of this Article 14 in order to preserve, to the extent reasonably
possible, the economic intent and effect of this Article 14 as of the date
hereof.


                                  ARTICLE 15.
                             USE OF GRANTOR SYSTEM
                             ---------------------

     15.01  Grantee represents and warrants that its use of the Grantee Fibers
shall not violate, and Grantee's use of the Grantee Fibers shall at all times be
in compliance with, all codes, ordinances, laws, rules and regulations of all
applicable Governmental Authorities.

     15.02  Notwithstanding anything contained in this Agreement to the
contrary, Grantee shall be responsible, at Grantee's cost, for obtaining prior
to the IRU Effective Date and maintaining any and all municipal franchises,
licenses, permits or similar approvals from all Governmental Authorities,
(excluding any Required Rights), which are necessary for Grantor to grant the
IRU to Grantee and for the use and operation of the Grantee Fiber by Grantee.
Without limiting the foregoing, unless and until specifically approved in
writing by Grantor referring to this Section 15.02, Grantee shall not originate
or terminate any type of communications traffic in Canada unless and until
Grantor and Grantee shall each have obtained authorization to do so by any
controlling Governmental Authority.

     15.03  Subject to the provisions of this Agreement, Grantee may use the
Grantee Fibers and the IRU for any lawful purpose.  Grantee acknowledges and
agrees that the IRU does not provide Grantee the right to use any fibers, other
than in the Grantee Fibers, included or incorporated in the Grantor System, and
that Grantee shall keep any and all of the Grantor


                                                    Confidential and Proprietary

                                       17
<PAGE>

System, free from any liens, rights or claims of any third party attributable to
Grantee, excluding only any lien in favor of Grantor described in Section 4.04.

     15.04  Notwithstanding anything to the contrary contained in this
Agreement, Grantee covenants and agrees that prior to the fourth (4th)
anniversary of the date hereof, Grantee shall not, that Grantee shall have no
right to, and that Grantor may enjoin Grantee from any attempt to, assign, sell,
lease, sublease, transfer, grant an indefeasible right of use or other similar
right or interest in the IRU or the Grantee Fibers in such Segment to anyone
other than an Affiliate. Nothing contained in this Section 15.04 shall prohibit
the sale of capacity over the Grantee Fibers. Nothing contained in this Article
15 shall be deemed or construed to prohibit Grantor from assigning or otherwise
transferring this Agreement or from selling, transferring, leasing, licensing,
granting indefeasible rights of use or entering into similar agreements or
arrangements with other Persons respecting any fibers and conduit constituting a
part of the Grantor System.

     15.05  Grantee shall not use the Grantee Fibers in a way which physically
interferes in any way with or otherwise adversely affects the use of the fibers,
cable or conduit of any other Person using the Grantor System.

     15.06  Grantee and Grantor shall promptly notify each other of any matters
pertaining to, or the occurrence (or impending occurrence) of, any event of
which it is aware that could give rise to any damage or impending damage to or
loss of the Grantor System.

     15.07  Grantee and Grantor agree to cooperate with and support each other
in complying with an requirements applicable to their respective rights and
obligations hereunder by any Governmental Authority.


                                  ARTICLE 16.
                                INDEMNIFICATION
                                ---------------

     16.01  Subject to the provisions of Article 17, Grantor hereby agrees to
indemnify, defend, protect and hold harmless Grantee and its employees, officers
and directors, from and against, and assumes liability for: (i) any injury, loss
or damage to any Person, tangible property or facilities of any Person
(including reasonable attorney fees and costs) to the extent arising out of or
resulting from the negligence or willful misconduct of Grantor, its officers,
employees, servants, affiliates, agents, contractors, licensees, invitees and
vendors arising out of or in connection with the performance by Grantor of its
obligations under this Agreement; and (ii) any claims, liabilities or damages
arising out of any violation by Grantor of any regulation, rule, statute or
court order of any Governmental Authority in connection with the performance by
Grantor of its obligations under this Agreement.

     16.02  Subject to the provisions of Article 17, Grantee hereby agrees to
indemnify, defend, protect and hold harmless Grantor, and its employees,
officers and directors, from and against, and assumes liability for: (i) any
injury, loss or damage to any Person, tangible property


                                                    Confidential and Proprietary

                                       18
<PAGE>

or facilities of any Person (including reasonable attorney fees and costs) to
the extent arising out of or resulting from the negligence or willful misconduct
of Grantee, its officers, employees, servants, affiliates, agents, contractors,
licensees, invitees and vendors arising out of or in connection with the
exercise by Grantee of its rights under this Agreement; and (ii) any claims,
liabilities or damages arising out of any violation by Grantee of any
regulation, rule, statute or cow order of any Governmental Authority in
connection with the exercise by Grantee of its rights under this Agreement.

     16.03  Grantor and Grantee agree to promptly provide each other with notice
of any claim which may result in an indemnification obligation hereunder.  The
indemnifying party may defend such claim with counsel of its own choosing
provided that no settlement or compromise of any such claim shall occur without
the consent of the indemnified party, which consent shall not be unreasonably
withheld or delayed.

     16.04  Grantor and Grantee each expressly recognize and agree that its
obligation to indemnify, defend, protect and save the other harmless is not a
material obligation to the continuing performance of its other obligations, if
any, hereunder.  In the event that a Party shall fail for any reason to so
indemnify, defend, protect and save the other harmless, the injured Party hereby
expressly recognizes that its sole remedy in such event shall be the right to
bring legal proceedings against the other Party for its damages as a result of
the other Party's said failure to indemnify, defend, protect and save harmless.
These obligations shall survive the expiration or termination of this Agreement.

     16.05  Notwithstanding the foregoing provisions of this Article 16, to the
extent Grantor is required under the terms and provisions of any Required Right
to indemnify the grantor or provider thereof from and against any and all
claims, demands, suits, judgments, liabilities, losses and expenses arising out
of service interruption, cessation, unreliability of or damage to the Grantor
System, regardless of whether such claims, demands, suits, judgments,
liabilities, losses or expenses arise from the sole or partial negligence,
willful misconduct or other action or inaction of such grantor or provider and
its employees, servants, agents, contractors, subcontractors or other Persons
using the property covered by such Required Right, Grantee hereby releases such
grantor or provider from, and hereby waives, all claims, suits, judgments,
liabilities, losses and expenses arising out of service interruption, cessation,
unreliability of or damage to the Grantor System regardless of whether such
claims, suits, judgments, liabilities, losses or expenses arise from the sole or
partial negligence, willful misconduct or other action or inaction, of such
grantor or provider or its employees, servants, agents, contractors,
subcontractors or other Persons using the property covered by such Required
Right.


                                  ARTICLE 17.
                            LIMITATION OF LIABILITY
                            -----------------------

     Notwithstanding any provision of this Agreement to the contrary, neither
Party shall be liable to the other Party for any special, incidental, indirect,
punitive or consequential damages,


                                                    Confidential and Proprietary

                                       19
<PAGE>

whether foreseeable or not, arising out of, or in connection with such Party's
failure to perform its respective obligations hereunder, including, but not
limited to, loss of profits or revenue (whether arising out of transmission
interruptions or problem, any interruption or degradation of service or
otherwise), or claims of customers, whether occasioned by any construction,
reconstruction, relocation, repair or maintenance performed by, or failed to be
performed by, the other Party or any other cause whatsoever, including breach of
contract, breach of warranty, negligence, or strict liability, all claims for
which damages are hereby specifically waived. Except as set forth in Section
16.05, nothing contained herein shall operate as a limitation on the right of
either Party hereto to bring an action for damages against any third party,
including claims for indirect, special or consequential damages, based on any
acts or omissions of such third party.

                                  ARTICLE 18.
                                  INSURANCE
                                  ---------

     18.01  During the term of this Agreement, each Party shall obtain and
maintain the Mowing insurance: (i) Commercial General Liability including
coverage for (a) premises/operations, (b) independent contractors, (c)
products/completed operations, (d) personal and advertising injury, (e)
contractual liability, and (f) explosion, collapse and underground hazards, with
combined single limit of not less than $5,000,000.00 each occurrence or its
equivalent; (ii) Worker's Compensation in amounts required by applicable law and
Employees Liability with a limit of at least $1,000,000.00 each accident; (iii)
Automobile Liability including coverage for owned/leased, non-owned or hired
automobiles with combined single limit of not less than $1,000,000.00 each
accident; and (iv) any other insurance coverages required under or pursuant to
the Required Rights.

     18.02  During the term of this Agreement: (i) Grantee shall obtain and
maintain "all risk" property insurance in an amount equal to the replacement
cost of all electronic, optronic and other equipment utilized by Grantee in
connection with the Grantee Fibers, and (ii) Grantor shall obtain and maintain
"all risk" property insurance in an amount equal to the replacement cost of the
Regeneration Facilities and Opamp Facilities.

     18.03  Both Parties expressly acknowledge that a Party shall be deemed to
be in compliance with the provisions of this Article if it maintains an approved
self-insurance program providing for a retention of up to $1,000,000.00.  If
either Party provides any of the foregoing coverages on a claims made basis,
such policy or policies shall be for at least a three (3) year extended
reporting or discovery period.

     18.04  Unless otherwise agreed, all insurance policies shall be obtained
and maintained with companies rated A or better by Best's Key Rating Guide and
each Party shall, upon request, provide the other Party with an insurance
certificate confirming compliance with the requirements of this Article 18.


                                                    Confidential and Proprietary

                                       20
<PAGE>

     18.05  Grantee and Grantor shall each obtain from the insurance companies
providing the coverages required by this Agreement, the permission of such
insurers to allow such Party to waive all rights of subrogation and such Party
does hereby waive all rights of said insurance companies to subrogation against
the other Party, its affiliates, subsidiaries, assignees, officers, directors
and employees.  To the extent of each Party's respective indemnification
obligation, each Party shall name the other Party as an additional insured on
their respective Commercial General Liability and Automobile Liability policies.

     18.06  In the event either Party fails to maintain the required insurance
coverages and a claim is made or suffered, such Party shall indemnify and hold
harmless the other Party from any and all claims for which the required
insurance would have provided coverage.

     18.07   Until the IRU Effective Date for a Segment, Grantor shall bear all
risk of loss of and damage or destruction to the Grantor System within such
Segment.  Commencing as of the IRU Effective Date, any loss, damage or
destruction of or to the Grantor System not otherwise required to be insured
hereunder shall be treated for all purposes as Unscheduled Maintenance (as
defined in Exhibit "I").
           -----------


                                  ARTICLE 19.
                                 FORCE MAJEURE
                                 -------------

     Except as may be otherwise specifically provided in this Agreement, neither
Party shall be in default under this Agreement if and to the extent that any
failure or delay in such Party's performance of one or more of its obligations
hereunder (other than the payment of money) is caused by any of the following
conditions, and such Party's performance of such obligation or obligations shall
be excused and extended for and during the period of any such delay: act of God;
fire; flood; material shortages or unavailability or other delay in delivery not
resulting from the responsible Party's failure to timely place orders therefor,
lack of or delay in transportation; government codes, ordinances, laws, rules,
regulations or restrictions; war or civil disorder; failure of a third party to
recognize a Required Right; any other cause beyond the reasonable control of
such Party (***), (each a "Force Majeure Event").  The Party claiming relief
under this Article shall notify the other in writing of the existence of the
event relied on and the cessation or termination of said event.  The Party
claiming relief under this Article 19 shall exercise reasonable efforts to
minimize the time for any such delay.


                                  ARTICLE 20.
                                    DEFAULT
                                    -------

     20.01  If (i) Grantee makes a general assignment for the benefit of its
creditors, files a voluntary petition in bankruptcy or any petition or answer
seeking, consenting to, or acquiescing in reorganization, arrangement,
adjustment, composition, liquidation, dissolution or similar relief; (ii) an
involuntary petition in bankruptcy, other insolvency protection against Grantee
as


                                                    Confidential and Proprietary

                                       21
<PAGE>

filed and not dismissed within one hundred twenty (120) days; (iii) Grantee
shall fail to pay any portion of the IRU Contribution or the one-time Facilities
Contribution when due hereunder and such failure shall continue for a period of
(***), after written notice from Grantor, or (iv) Grantee fails to observe and
perform any of the other terms and provisions of this Agreement and such failure
continues for a period of thirty (30) days after written notice from Grantor (or
if such failure is not susceptible of a cure within such thirty (30) day period,
cure has not been commenced and diligently pursued thereafter to completion),
then Grantor may (A) terminate this Agreement, the Term and the IRU, in whole or
in part, and retain any and all sums previously paid to Grantor hereunder,
including all or any part of the IRU Contribution and Facilities Contribution,
in which event Grantor shall have no further duties or obligations hereunder,
and (B) subject to Article 17, pursue any legal remedies it may have under
applicable law or principles of equity relating to such default, including an
action for damages, specific performance and/or injunctive relief, provided, and
notwithstanding the foregoing, in the event Grantee shall have fully paid the
IRU Contribution and the one-time Facilities Contribution with respect to a
Segment, Grantor shall have no right to terminate this Agreement or the IRU with
respect to such Segment.

     20.02  If (i) Grantor makes a general assignment for the benefit of its
creditors, files a voluntary petition in bankruptcy or any petition or answer
seeking, consenting to, or acquiescing in reorganization, arrangement,
adjustment, composition, liquidation, dissolution or similar relief; (ii) an
involuntary petition in bankruptcy, other insolvency protection against Grantor
as filed and not dismissed within one hundred twenty (120) days; (iii) Grantor
fails to observe and perform the terms and provisions of this Agreement and such
failure continues for a period of thirty (30) days after written notice from
Grantee (or if such failure is not susceptible of a cure within such thirty (30)
day period, cure has not been commenced and diligently pursued thereafter to
completion), then Grantee may, subject to Section 20.03 below, (A) terminate
this Agreement, the Term and the IRU, in whole or in part, in which event
Grantee shall have no further duties or obligations hereunder, and (B) subject
to Article 17, pursue any legal remedies it may have under applicable law or
principles of equity relating to such default, including an action for damages,
specific performance and/or injunctive relief.

     20.03  Notwithstanding anything contained in this Agreement to the
contrary, Grantees sole and exclusive remedies with respect to each Segment for
any failure of Grantor to deliver the Grantee Fibers by the Scheduled Completion
Date for such Segment in accordance with this Agreement (as such dates may be
extended as a result of Force Majeure Events) shall be limited to those set
forth in this Section 20.03.  In the event that the Acceptance Date for a
Segment shall not have occurred within (***), after its Scheduled Completion
Date (as such date may be extended as a result of Force Majeure Events), Grantee
shall have the right, at its option, to either cancel such Segment or to keep
such Segment in which later case the IRU Contribution payable by Grantee with
respect to such Segment shall be reduced by (***), provided, in the event the
Acceptance Date for a Segment shall not have occurred within (***), after its
Scheduled Completion Date (as such date may be extended as a result of Force
Majeure Events), unless mutually extended by the Parties, this Agreement shall
automatically terminate with respect to such Segment and Grantor shall (i)
refund all portions of the IRU Contribution and Facilities


                                                    Confidential and Proprietary

                                       22
<PAGE>

Contribution previously paid by Grantee to Grantor with respect to such Segment,
together with interest thereon at the Relevant Rate, and (ii) pay to Grantee,
(***), of the IRU Contribution which would have been payable by Grantee
hereunder with respect to such Segment, and Grantor shall have no further duties
or obligations hereunder with respect to such Segment.


                                  ARTICLE 21.
                                  ASSIGNMENT
                                  ----------

     21.01  Grantee shall not assign, encumber or otherwise transfer this
Agreement to any other Person without the prior written consent of Grantor,
which consent shall not be unreasonably withheld; provided, Grantee shall have
the right (and obligation) to grant a first security interest and lien to
Grantor under the provisions of Section 4.04; and provided further, Grantee
shall have the right, without Grantor's consent, but with prior written notice
to Grantor, to assign or otherwise transfer this Agreement (i) as collateral to
any institutional lender of Grantee subject to the prior rights of Grantor
hereunder; and (ii) to any Affiliate of Grantee, or to any entity into which
Grantee may be merged or consolidated or which purchases all or substantially
all of the assets of Grantee.  Any assignment or transfer by Grantee shall not
release Grantee from its obligation hereunder and any assignee or transferee
shall be subject to all of the provisions of this Agreement, (except that any
lender referred to in clause (i) above shall not incur any obligations under
this Agreement nor shall it be restricted from exercising any right of
enforcement or foreclosure with respect to any related security interest or
lien, so long as the purchaser in foreclosure is subject to the provisions of
this Agreement).  Any assignment of this Agreement by Grantor shall not release
Grantor from its obligations hereunder.  Grantor agrees to give written notice
to Grantee of any assignment by Grantor hereunder.

     21.02  Any and all increased Required Rights Payments and any other
additional fees, charges, costs or expenses which result under the Required
Rights or otherwise as a result of any permitted assignment or transfer of this
Agreement by a Party shall be paid by such Party.

     21.03  This Agreement and each of the Parties' respective rights and
obligations under this Agreement, shall be binding upon and shall inure to the
benefit of the Parties hereto and each of their respective permitted successors
and assigns.


                                                    Confidential and Proprietary

                                       23
<PAGE>

                                  ARTICLE 22.
                         REPRESENTATIONS AND WARRANTIES
                         ------------------------------

     22.01  Each Party represents and wan-ants that:  (i) it has the full right
and authority to enter into, execute and deliver this Agreement; (ii) it has
taken all requisite corporate action to approve the execution, delivery and
performance of this Agreement; (iii) this Agreement constitutes a legal, valid
and binding obligation enforceable against such Party in accordance with its
terms, subject to bankruptcy, insolvency, creditors' rights and general
equitable principles; and (iv) its execution of and performance under this
Agreement shall not violate any applicable existing regulations, rules, statutes
or court orders of any local, state or federal government agency, court or body.

     22.02  Grantor represents and warrants that the Segments of the Grantor
System that it will construct pursuant hereto and in which Grantee receives the
IRU will be designed, engineered, installed, and constructed substantially in
accordance with the terms and provisions of this Agreement, any and all
applicable building, construction and safety codes, as well as any and all other
applicable governmental laws, codes, ordinances, statutes and regulations;
provided Grantee's sole rights and remedies with respect to any breach of such
representation shall be (i) to inspect the construction, installation and
splicing of the Grantee Fibers incorporated in such Segment and to participate
in the Acceptance Testing, during the course and at the time of the relevant
construction, installation and testing periods for such Segment, as provided
herein; (ii) if, during the course of such construction, installation and
testing any deviation from the specifications set forth in Exhibits "F', "G",
                                                           ------------------
"H" or "I" is discovered which is reasonably likely to materially adversely
- ----------
affect the operation or performance of the Grantee Fibers, the construction or
installation of the affected portion of such Segment shall be repaired to such
specification by Grantor at Grantor's sole cost and expense; and (iii) if, at
anytime prior to the date that is twelve (12) months after the Acceptance Date,
Grantee shall notify Grantor in writing of its discovery of a deviation from the
specifications set forth in Exhibits "F", "G", "H" or "I" which is reasonably
                            -----------------------------
likely to materially adversely affect the operation or performance of the
Grantee Fibers, with respect to such Segment (which notice shall be given within
thirty (30) days of such discovery) the construction or installation of the
affected portion of such Segment shall be repaired to such specification by
Grantor at Grantor's sole cost and expense.

     22.03  EXCEPT AS SET FORTH IN THE FOREGOING SECTIONS 22.01 AND 22.02,
GRANTOR MAKES NO WARRANTY, EXPRESS OR IMPLIED, WITH RESPECT TO THE GRANTEE
FIBERS OR THE GRANTOR SYSTEM, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR
FITNESS FOR PARTICULAR PURPOSE, AND ALL SUCH WARRANTIES ARE HEREBY EXPRESSLY
DISCLAIMED.

     22.04  Grantee acknowledges and agrees that Grantee's sole rights and
remedies with respect to any defect in or failure of the Grantee Fibers to
perform in accordance with the applicable vendor's or manufacturer's
specifications with respect to the Grantee Fibers shall be limited to the
particular vendor's or manufacturer's warranty and such warranties, if any, with
respect to the Grantee Fibers shall be assigned to Grantee upon its request In
the event any


                                                    Confidential and Proprietary

                                       24
<PAGE>

maintenance or repairs to the Grantor System are required as a result of a
breach of any warranty made by any manufacturers, contractors or vendors, unless
Grantee shall elect to pursue such remedies itself, Grantor shall pursue all
remedies against such manufacturers, contractors or vendors on behalf of
Grantee, and Grantor shall reimburse Grantee's costs for any maintenance Grantee
has incurred as a result of any such breach of warranty to the extent the
manufacturer, contractor or vendor pays such costs.

                                  ARTICLE 23.
                                CONFIDENTIALITY
                                ---------------

     23.01  Grantor and Grantee hereby agree that if either Party provides
confidential or proprietary information to the other Party ("Proprietary
Information"), such Proprietary Information shall be held in confidence, and the
receiving Party shall afford such Proprietary Information the same care and
protection as it affords generally to its own confidential and proprietary
information (which in any case shall be not less than reasonable care) in order
to avoid disclosure to or unauthorized use by any the party.  The Parties
acknowledge and agree that all information disclosed by either Party to the
other in connection with or pursuant to this Agreement shall be deemed to be
Proprietary Information, provided that written information is clearly marked in
a conspicuous place as being confidential or proprietary and verbal information
is indicated as being confidential or proprietary when given and promptly
confirmed in writing as such thereafter.  All Proprietary Information, unless
otherwise specified in writing, shall remain the property of the disclosing
Party, shall be used by the receiving Party only for the intended purpose, and
such written Proprietary Information, including all copies thereof, shall be
returned to the disclosing Party or destroyed after the receiving Party's need
for it has expired or upon the request of the disclosing Party.  Proprietary
Information shall not be reproduced except to the extent necessary to accomplish
the purpose and intent of this Agreement, or as otherwise may be permitted in
writing by the disclosing Party.

     23.02  The foregoing provisions of Section 23.01 shall not apply to any
Proprietary Information which (i) becomes publicly available other than through
the disclosing Party; (ii) is required to be disclosed by a governmental or
judicial law, order, rule or regulation; (iii) is independently developed by the
receiving Party; or (iv) becomes available to the receiving Party without
restriction from a third party.

     23.03  Notwithstanding Sections 23.01 and 23.02 either Party may disclose
Proprietary Information to its employees, agents, and legal and financial and
funding partners, advisors and providers to the extent necessary or appropriate
in connection with the negotiation and/or performance of this Agreement or in
obtaining financing, provided that each such Party is notified of the
confidential and proprietary nature of such Proprietary Information and is
subject to or agrees to be bound by similar restrictions on its use and
disclosure.


                                                    Confidential and Proprietary

                                       25
<PAGE>

     23.04  Neither Party shall issue any public announcement or press release
relating to the execution of this Agreement without the prior approval of the
other Party, which approval shall not be unreasonably withheld.

     23.05  In this event either Party shall be required to disclose all or any
part of this Agreement in, or attach all or any part of this Agreement to, any
regulatory filing or statement, each Party agrees to discuss and work
cooperatively, in good faith, with the other Party, to protect, to the extent
possible, those items or matters which the other Party deem confidential and
which may, in accordance with applicable laws, be deleted therefrom.

     23.06  The provisions of this Article 23 shall survive expiration or
termination of this Agreement.


                                  ARTICLE 24.
                               DISPUTE RESOLUTION
                               ------------------

     If the Parties are unable to resolve any dispute arising under or relating
to this Agreement, the Parties shall resolve such disagreement or dispute as
follows:

          (i)   Either Party may refer the matter to a management-level
     representative of each of the Parties by written notice to the other Party
     (the "Dispute Notice"). Within fifteen (15) days after delivery of the
     Dispute Notice such representatives of both Parties shall meet at a
     mutually acceptable time and place to exchange all relevant information in
     an attempt to resolve the dispute.

          (ii)  If the matter has not been resolved within thirty (30) days
     after delivery of the Dispute Notice, or if such representatives fail to
     meet within fifteen (15) days after delivery of such Dispute Notice, either
     Party may initiate legal proceedings in accordance with (iii) below. All
     negotiations conducted by such representatives shall be confidential and
     shall be treated as compromise and settlement negotiations for purposes of
     federal and state rules of evidence.

          (iii)  If the matter is not resolved by the representatives, the
     Parties may initiate legal proceedings to resolve their dispute. Any such
     legal proceedings shall take place in New York, New York.


                                                    Confidential and Proprietary

                                       26
<PAGE>

                                  ARTICLE 25.
                                     NOTICE
                                     ------

     All notices or other communications which are required or permitted herein
shall be in writing and sufficient if delivered personally, sent by prepaid
overnight air courier, or sent by registered or certified mail, postage prepaid,
return receipt requested, addressed as follows:

IF TO GRANTOR:                      Level 3 Communications, LLC
(prior to 7/1/1999)                 1450 Infinite Drive
                                    Louisville, Colorado 80027
                                    Attn: Vice President, Planning & Development

with copies to:                     Level 3 Communications, LLC
                                    1450 Infinite Drive
                                    Louisville, Colorado 80027
                                    Attn: General Counsel

                                    Level 3 Communications, LLC
                                    1450 Infinite Drive
                                    Louisville, Colorado 80027
                                    Attn: Vice President, Network Operations

IF TO GRANTOR:                      Level 3 Communications, LLC
(after 7/1/1999)                    1025 Eldorado Drive
                                    Broomfield Colorado 80021
                                    Attn: Vice President, Planning & Development

with copies to:                     Level 3 Communications, LLC
                                    1025 Eldorado Drive
                                    Broomfield, Colorado 80021
                                    Attn: General Counsel

                                    Level 3 Communications, LLC
                                    1025 Eldorado Drive
                                    Broomfield, Colorado 80021
                                    Attn: Vice President, Network Operations

IF TO GRANTEE:                      Splitrock Services, Inc.
                                    8665 New Trails Drive
                                    The Woodlands, Texas 77381
                                    Attn: General Counsel


                                                    Confidential and Proprietary

                                       27
<PAGE>

with a copy to:                     Splitrock Services, Inc.
                                    8665 New Trails Drive
                                    The Woodlands, Texas 77381
                                    Attn: Vice President, Network Operations

or at such other address as the Party to whom notice is to be given may have
furnished to the other Party in writing in accordance herewith.  Any such
communication shall be deemed to have been given when delivered if delivered
personally, on the business day after dispatch if sent by overnight air courier,
or on the third business day after posting if sent by mail.


                                  ARTICLE 26.
                          ENTIRE AGREEMENT;: AMENDMENT
                          ----------------------------

     This Agreement constitutes the entire and final agreement and understanding
between the Parties with respect to the subject matter hereof and supersedes all
prior agreements relating to the subject matter hereof, which are of no further
force or effect.  The Exhibits referred to herein are integral parts hereof and
are hereby made a part of this Agreement.  This Agreement may only be modified
or supplemented by an instrument in writing executed by a duly authorized
representative of each Party.


                                  ARTICLE 27.
                          RELATIONSHIP OF THE PARTIES
                          ---------------------------

     The relationship between Grantee and Grantor shall not be that of partners,
agents, or joint venturers for one another, and nothing contained in this
Agreement shall be deemed to constitute a partnership or agency agreement
between them for any purposes, including but not limited to federal income tax
purposes.


                                  ARTICLE 28.
                                  COUNTERPARTS
                                  ------------

     This Agreement may be executed in one or more counterparts, all of which
taken together shall constitute one and the same instrument.


                                                    Confidential and Proprietary

                                       28
<PAGE>

     IN WITNESS WHEREOF, Grantor and Grantee have executed this Agreement as of
the above written.

                                LEVEL 3 COMMUNICATIONS, LLC,
                                a Delaware limited liability company


                                By:
                                    -----------------------------------
                                Title:
                                       --------------------------------
                                Date:
                                       --------------------------------


                                SPLITROCK SERVICES, INC.,
                                a Delaware corporation


                                By:
                                    -----------------------------------
                                Title:
                                       --------------------------------
                                Date:
                                       --------------------------------


Exhibit "A"-Grantor System Map
Exhibit "B"-Segments/City Pairs
Exhibit "C"-Intentionally Deleted
Exhibit "D"-Intentionally Deleted
Exhibit "E"-Financing Terms and Conditions
Exhibit "F"-Construction Specifications
Exhibit "G"-Fiber Specifications
Exhibit "H"- Facilities Specifications
Exhibit "I"-Acceptance Testing Procedures and Standards
Exhibit "J"-Maintenance Requirements and Procedures


                                                    Confidential and Proprietary

                                       29

<PAGE>

                                                                   EXHIBIT 10.18

NOTE: Redacted portions have been marked with asterisks (***). The redaced
portions are subject to a request for confidential treatment that has been filed
with the Securities and Exchange Commission.


            FIRST AMENDMENT TO COST SHARING NATIONAL IRU AGREEMENT
            ------------------------------------------------------


     This First Amendment to Cost Sharing National IRU Agreement ("First
Amendment") is entered into between LEVEL 3 COMMUNICATIONS, LLC ("Grantor) and
SPLITROCK SERVICES, INC. ("Grantee").  Grantor and Grantee hereby agree as
follows:

     1.  Agreement.  Grantor and Grantee are parties to a certain Cost Sharing
         ---------
National IRU Agreement dated April 26, 1999 (the "Agreement").  Terms
capitalized herein and not otherwise defined shall have the meanings ascribed to
them in the Agreement.

     2.  Amendment.  Grantor and Grantee hereby amend Section 13.02 of the
         ---------
Agreement by deleting clause (i) thereof and inserting in lieu thereof the
following clause (i):

          "(i)  Grantee shall pay to Grantor on the first (1st) day of each
          calendar month, in advance, with respect to each Segment, commencing
          with the Acceptance Date of such Segment and continuing until the
          expiration of the Term of the IRU with respect to such Segment, (***)
          per Route Mile (for up to (***)  Grantee Fibers) and (***) per Route
          Mile (for (***) Grantee Fibers) (the "Monthly Charge"); and"

     3.  Ratification.  Except as amended by this  First Amendment, the original
         ------------
terms and provisions of the Agreement shall continue in full force and effect
and the Agreement, as amended by this First Amendment, is hereby ratified and
confirmed.

     4.  Counterparts.  This First Amendment may be executed in counterparts and
         ------------
may be delivered by facsimile transmission.

     Dated effective May 10, 1999.

LEVEL 3 COMMUNICATIONS, LLC         SPLITROCK SERVICES, INC.


By:                                 By:
    -----------------------------       -----------------------------
Title:                              Title:

<PAGE>

                                                                    Exhibit 23.1


                      CONSENT OF INDEPENDENT ACCOUNTANTS

We hereby consent to the use in this Registration Statement on Form S-1 of our
reports dated March 24, 1999 relating to the financial statements and financial
statement schedule of Splitrock Services, Inc., which appear in such
Registration Statement.  We also consent to the reference to us under the
heading "Experts" in such Registration Statement.



PricewaterhouseCoopers LLP



Houston, TX
May 28, 1999

<TABLE> <S> <C>

<PAGE>

<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
COMPANY'S AUDITED FINANCIAL STATEMENTS FOR THE YEAR ENDED DECEMBER 31, 1998 AND
IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000

<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<CASH>                                          28,330
<SECURITIES>                                   120,475
<RECEIVABLES>                                    3,742
<ALLOWANCES>                                      (537)
<INVENTORY>                                          0
<CURRENT-ASSETS>                               191,966
<PP&E>                                          91,097
<DEPRECIATION>                                 (17,198)
<TOTAL-ASSETS>                                 296,141
<CURRENT-LIABILITIES>                           59,972
<BONDS>                                        258,217
                                0
                                          0
<COMMON>                                            83
<OTHER-SE>                                     (30,374)
<TOTAL-LIABILITY-AND-EQUITY>                   296,141
<SALES>                                         63,611
<TOTAL-REVENUES>                                63,611
<CGS>                                           91,204
<TOTAL-COSTS>                                  111,444
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              15,390
<INCOME-PRETAX>                                (57,830)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                            (57,830)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (57,830)
<EPS-BASIC>                                    (0.73)<F1>
<EPS-DILUTED>                                    (0.73)
<FN>
<F1>EPS-PRIMARY REFERS TO BASIC EARNINGS PER SHARE, AS DEFINED IN STATEMENT OF
FINANCIAL ACCOUNTING STANDARDS NO. 128, "EARNINGS PER SHARE."
</FN>


</TABLE>

<PAGE>

                                                                    Exhibit 99.1


                           Splitrock Services, Inc.
        Schedule II:  Valuation and Qualifying Accounts (in thousands)

<TABLE>
<CAPTION>
                                                  Balance at        Charged to                        Balance at
                                                   Beginning         Costs and                            End
                                                   of Period         Expenses        Deductions        of Period
                                                ---------------  ---------------  ----------------  ---------------
<S>                                             <C>              <C>              <C>               <C>
Tax Valuation Allowance:
  Period from inception (March 5, 1997) to
   December 31, 1997.......................         $   ---          $  3,436          $  ---            $  3,436
  Year ended December 31, 1998.............         $ 3,436          $ 22,309          $  ---            $ 25,745

Allowance for Doubtful Accounts:
  Period from inception (March 5, 1997) to
   December 31, 1997.......................         $   ---          $    ---          $  ---            $    ---
  Year ended December 31, 1998.............         $   ---          $    537          $  ---            $    537
</TABLE>

   All other schedules are omitted because they are not required, are not
applicable, or the information is included in the financial statements or notes
thereto.

<PAGE>

                                                                    Exhibit 99.2


                     REPORT OF INDEPENDENT ACCOUNTANTS ON
                         FINANCIAL STATEMENT SCHEDULE



To the Board of Directors of
Splitrock Services, Inc.

Our audits of the financial statements referred to in our report dated March 24,
1999 appearing in Part One of this Registration Statement on Form S-1 also
included an audit of the financial statement schedule listed in Part Two of this
Form S-1.  In our opinion, this financial statement schedule presents fairly, in
all material respects, the information set forth therein when read in
conjunction with the related financial statements.


PricewaterhouseCoopers LLP

Houston, Texas
March 24, 1999


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