LEVEL 3 COMMUNICATIONS INC
8-K, 1999-03-05
TELEPHONE & TELEGRAPH APPARATUS
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<PAGE>
 
                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549

                                   FORM 8-K

                                CURRENT REPORT

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

               Date of Report (Date of earliest event reported):
                                 March 4, 1999
                                 -------------

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


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

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


                              3555 Farnam Street
                            Omaha, Nebraska  68131
                   -----------------------------------------
                   (Address of principal executive offices)


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



                                Not Applicable
    -----------------------------------------------------------------------
        (Former name or former address, if changed since last report.)
<PAGE>
 
Item 5. Other Events.

On March 4, 1999, Level 3 Communications, Inc. (the "Company") entered into an
underwriting agreement (the "Underwriting Agreement") with the representatives
named in Schedule I thereto, as the representatives of the several underwriters
named in Schedule II thereto, in connection with the offering (the "Offering")
of 25,000,000 shares of the Company's common stock, par value $.01 per share,
(the "Common Stock").  An additional 3,750,000 shares of Common Stock are
subject to an over-allotment option granted to the underwriters in the
Underwriting Agreement.  A copy of the Underwriting Agreement is attached hereto
as Exhibit 1.1 and is incorporated herein by reference.

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


Item 7. Financial Statements and Exhibits

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

     (b) Pro forma financial information: Not Applicable.

     (c) Exhibits:

     1.1       Underwriting Agreement, dated March 4, 1999, among the Company
               and with the representatives named in Schedule I thereto, as the
               representatives of the several underwriters named in Schedule II
               thereto

     23.1      Consent of PricewaterhouseCoopers LLP

     23.2      Consent of PricewaterhouseCoopers LLP

     99.1      Consent of Philip B. Fletcher

                                      -2-
<PAGE>
 
                                   SIGNATURES

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


                             LEVEL 3 COMMUNICATIONS, INC.


Dated: March 5, 1999         By: /s/ Neil J. Eckstein
                                -------------------------------
                                 Neil J. Eckstein
                                 Vice President



                                      -3-

<PAGE>
 
                                                                    EXHIBIT 1.1



                          Level 3 Communications, Inc.


                             Underwriting Agreement

                                                              New York, New York
                                                                   March 4, 1999

To the Representatives
   named in Schedule I
   hereto of the Underwriters
   named in Schedule II hereto


Ladies and Gentlemen:

          Level 3 Communications, Inc., a corporation organized under the laws
of Delaware (the "Company"), proposes to sell to the several underwriters named
in Schedule II hereto (the "Underwriters"), for whom you (the "Representatives")
are acting as representatives, the number of shares of Common Stock, $0.01 par
value ("Common Stock") of the Company set forth in Schedule I hereto (said
shares to be issued and sold by the Company being hereinafter called the
"Underwritten Securities").  The Company also proposes to grant to the
Underwriters an option to purchase up to the number of additional shares of
Common Stock set forth in Schedule I hereto to cover over-allotments (the
"Option Securities"; the Option Securities, together with the Underwritten
Securities, being hereinafter called the "Securities").  To the extent there are
no additional Underwriters listed on Schedule II other than you, the term
Representatives as used herein shall mean you, as Underwriters, and the terms
Representatives and Underwriters shall mean either the singular or plural as the
context requires.  Any reference herein to the Registration Statement, the Basic
Prospectus, any Preliminary Final Prospectus or the Final Prospectus shall be
deemed to refer to and include the documents incorporated by reference therein
pursuant to Item 12 of Form S-3 which were filed under the Exchange Act on or
before the Effective Date of the Registration Statement or the issue date of the
Basic Prospectus, any Preliminary Final Prospectus or the Prospectus, as the
case may be; and any reference herein to the terms "amend", "amendment" or
"supplement" with respect to the Registration Statement, the Basic Prospectus,
any Preliminary Final Prospectus or the Final Prospectus shall be deemed to
refer to and include the filing of any document under the Exchange Act after the
Effective Date of the Registration Statement, or the issue date of the Basic
Prospectus, any Preliminary Final Prospectus or the Final Prospectus, as the
case may be, deemed to be incorporated therein by reference.  Certain terms used
herein are defined in Section 17 hereof.
<PAGE>
 
          1.  Representations and Warranties.  The Company represents and
              -------------------------------                            
warrants to, and agrees with, each Underwriter as set forth below in this
Section 1.

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

          (b)  On the Effective Date, the Registration Statement did or will,
     and when the Final Prospectus is first filed (if required) in accordance
     with Rule 424(b) and on the Closing Date (as defined herein) and on any
     date on which Option Securities are purchased, if such date is not the
     Closing Date (a "settlement date"), the Final Prospectus (and any
     supplement thereto) will, comply in all material respects with the
     applicable requirements of the Act and the Exchange Act and the respective
     rules thereunder; on the Effective Date and at the Execution Time, the
     Registration Statement did not or will not contain any untrue statement of
     a material fact or omit to state any material fact required to be stated
     therein or necessary in order to make the statements therein not
     misleading; and, on the Effective Date (if the Final Prospectus is not
     filed pursuant to Rule 424(b)) or on the date of any filing pursuant to
     Rule 424(b) (if the Final Prospectus is filed pursuant to Rule 424(b)) and,
     in either case, on the Closing Date and any settlement date, the Final
     Prospectus (together with any supplement thereto) will not, include any
     untrue statement of a material fact or omit to state a material fact
     necessary in order to make the statements therein, in the light of the
     circumstances under which they were made, not misleading; provided,
                                                               -------- 
     however, that the Company makes no representations or warranties as to the
     -------                                                                   
     information contained in or omitted from the Registration Statement or the
     Final Prospectus (or any supplement thereto) in reliance upon and in
     conformity with
<PAGE>
 
                                                                               3


     information furnished in writing to the Company by or on behalf of any
     Underwriter through the Representatives specifically for inclusion in the
     Registration Statement or the Final Prospectus (or any supplement thereto).

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

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

          (e)  The Company's authorized equity capitalization is as set forth in
     the Final Prospectus; the capital stock of the Company conforms in all
     material respects to the description thereof contained in the Final
     Prospectus; the outstanding shares of Common Stock have been duly and
     validly authorized and issued and are fully paid and nonassessable; the
     Securities have been duly and validly authorized, and, when issued and
     delivered to and paid for by the Underwriters pursuant to this Agreement,
<PAGE>
 
                                                                               4

     will be fully paid and nonassessable; the Securities are duly listed, and
     admitted and authorized for trading, subject to official notice of
     issuance, on the Nasdaq National Market; the certificates for the
     Securities are in valid and sufficient form; the holders of outstanding
     shares of capital stock of the Company are not entitled to preemptive or
     other rights to subscribe for the Securities; and, except as set forth in
     the Final Prospectus and, except for outstanding warrants and options to
     purchase shares of Common Stock that in the aggregate represent less than
     1% of the Common Stock outstanding on the date hereof, no options, warrants
     or other rights to purchase, agreements or other obligations to issue, or
     rights to convert any obligations into or exchange any securities for,
     shares of capital stock of or ownership interests in the Company are
     outstanding.  All the outstanding shares of capital stock of each
     Subsidiary have been duly and validly authorized and issued and are fully
     paid and nonassessable, and, except as otherwise set forth in the Final
     Prospectus, all outstanding shares of capital stock of the Subsidiaries are
     owned by the Company either directly or through wholly owned subsidiaries
     free and clear of any perfected security interest or any other security
     interests, claims, liens or encumbrances.

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

          (g)  This Agreement has been duly authorized, executed and delivered
     by the Company.
 
          (h)  The Company is not and, after giving effect to the offering and
     sale of the Securities and the application of the proceeds thereof as
     described in the Final Prospectus, will not be an "investment company" as
     defined in the Investment Company Act of 1940, as amended.

          (i)  The execution and delivery of this Agreement, the issuance and
     sale of the Securities, the performance by the Company of this Agreement
     and the consummation of the other transactions herein contemplated will not
     (x) conflict with or result in a breach or violation of any of the
     respective charters, by-laws or other organizational documents of the
     Company or any of the Subsidiaries, (y) violate or conflict with any
     material statute, rule or regulation applicable to the Company or any
     Subsidiary or any order or decree of any governmental or regulatory agency
     or body or any court having jurisdiction over the Company or any Subsidiary
     or any of their respective properties or (z) after giving effect to the
     waivers and consents obtained on or prior to the date hereof, if any,
     conflict with or result in a breach or violation of any term or provision
     of, constitute a default or cause an acceleration of
<PAGE>
 
                                                                               5

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

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

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

          (l)  The firm of accountants that has certified the consolidated
     financial statements and supporting schedules of the Company included or
     incorporated by reference in the Final Prospectus are independent public
     accountants with respect to the Company and its subsidiaries, as required
     by the Act.  The consolidated historical statements and any pro forma
     information, together with related schedules and notes,
<PAGE>
 
                                                                               6

     if any, included or incorporated by reference in the Final Prospectus
     comply as to form in all material respects with the requirements of the
     Act. Such historical financial statements fairly present in all material
     respects the consolidated financial position of the Company and its
     subsidiaries at the respective dates indicated and the results of their
     operations and their cash flows for the respective periods indicated, in
     accordance with generally accepted accounting principles, except as
     otherwise expressly stated therein, as consistently applied throughout such
     periods. Such pro forma information has been prepared on a basis consistent
     with such historical financial statements, except for the pro forma
     adjustments specified therein, and gives effect to assumptions made on a
     reasonable basis and fairly presents in all material respects and gives
     effect to the transactions described therein pertaining to such pro forma
     information. The other financial and statistical information and data
     included in the Final Prospectus and the Registration Statement, historical
     and pro forma, are, in all material respects, accurately presented and
     prepared on a basis consistent with such financial statements and the books
     and records of the Company.

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

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

          (o)  The Company has not taken nor will it take, directly or
     indirectly, any action prohibited by Regulation M under the Exchange Act,
     in connection with the offering of the Securities.
<PAGE>
 
                                                                               7

          (p)  Other than the Subsidiaries, there is no entity or other person
     (i) of which a majority of the voting equity securities or other interests
     is owned, directly or indirectly, by the Company and (ii) which held more
     than 5% of the total assets of the Company on a consolidated basis as of
     December 31, 1998, excluding inter-company balances.

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

          2.  Purchase and Sale.  (a)  Subject to the terms and conditions and
              ------------------                                              
in reliance upon the representations and warranties herein set forth, the
Company agrees to sell to each Underwriter, and each Underwriter agrees,
severally and not jointly, to purchase from the Company, at a purchase price of
$52.11 per share, the amount of the Underwritten Securities set forth opposite
such Underwriter's name in Schedule II hereto.

          (b)  Subject to the terms and conditions and in reliance upon the
representations and warranties herein set forth, the Company hereby grants an
option to the several Underwriters to purchase, severally and not jointly, up to
3,750,000 Option Securities at the same purchase price per share as the
Underwriters shall pay for the Underwritten Securities.  Said option may be
exercised only to cover over-allotments in the sale of the Underwritten
Securities by the Underwriters.  Said option may be exercised in whole or in
part at any time (but not more than once) on or before the 30th day after the
date of the Final Prospectus upon written or telegraphic notice by the
Representatives to the Company setting forth the number of shares of the Option
Securities as to which the several Underwriters are exercising the option and
the settlement date.  The number of shares of the Option Securities to be
purchased by each Underwriter shall be the same percentage of the total number
of shares of the Option Securities to be purchased by the several Underwriters
as such Underwriter is purchasing of the Underwritten Securities, subject to
such adjustments as you in your absolute discretion shall make to eliminate any
fractional shares.

          3.  Delivery and Payment.  Delivery of and payment for the
              ---------------------                                 
Underwritten Securities and the Option Securities (if the option provided for in
Section 2(b) hereof shall have been exercised on or before the third Business
Day prior to the Closing Date) shall be made at 10:00 AM, New York City time, on
the date and at the time specified in Schedule I hereto, which date and time may
be postponed by agreement between the Representatives and the Company or as
provided in Section 9 hereof (such date and time of delivery and payment for the
Securities being herein called the "Closing Date").  Delivery of the Securities
shall be made to the Representatives for the respective accounts of the several
Underwriters against payment by the several Underwriters through the
Representatives of the purchase price thereof to or upon the order of the
Company by wire transfer payable in
<PAGE>
 
                                                                               8

same-day funds to an account specified by the Company. Delivery of the
Underwritten Securities and the Option Securities shall be made through the
facilities of The Depository Trust Company ("DTC") unless the Representatives
shall otherwise instruct.

          If the option provided for in Section 2(b) hereof is exercised after
the third Business Day prior to the Closing Date, the Company will deliver the
Option Securities (at the expense of the Company), through the facilities of DTC
unless the Representatives shall instruct otherwise, on the date specified by
the Representatives in the notice to the Company of their exercise of such
option (which shall be not more than ten nor fewer than three Business Days
after exercise of said option) for the respective accounts of the several
Underwriters, against payment by the several Underwriters through the
Representatives of the purchase price thereof to or upon the order of the
Company by wire transfer payable in same-day funds to an account specified by
the Company.  If settlement for the Option Securities occurs after the Closing
Date, the Company will deliver to the Representatives on the settlement date for
the Option Securities, and the obligation of the Underwriters to purchase the
Option Securities shall be conditioned upon receipt of, supplemental opinions,
certificates and letters confirming as of such date the opinions, certificates
and letters delivered on the Closing Date pursuant to Section 6 hereof.

          4.  Offering by Underwriters.  It is understood that the several
              -------------------------                                   
Underwriters are to offer the Securities for sale to the public as set forth in
the Final Prospectus.
<PAGE>
 
                                                                               9

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

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

          (b)  If, at any time when a prospectus relating to the Securities is
     required to be delivered under the Act, any event occurs as a result of
     which the Final Prospectus as then supplemented would include any untrue
     statement of a material fact or omit to state any material fact necessary
     to make the statements therein in the light of the circumstances under
     which they were made not misleading, or if it shall be necessary to amend
     the Registration Statement or supplement the Final Prospectus to comply
     with the Act or the Exchange Act or the respective rules thereunder, the
     Company promptly will (1) notify the Representatives of such event, (2)
     prepare and file with the Commission, subject to the second sentence of
     paragraph (a) of this Section 5,
<PAGE>
 
                                                                              10

     an amendment or supplement which will correct such statement or omission or
     effect such compliance and (3) supply any supplemented Final Prospectus to
     you in such quantities as you may reasonably request.

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

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

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

          (f)  The Company will not, without the prior written consent of
     Salomon Smith Barney Inc., offer, sell, contract to sell, issue, announce
     the offering or issuance of or otherwise dispose of, directly or
     indirectly, register, cause to be registered or announce the registration
     or intended registration of, in any case for its own account, any shares of
     Common Stock, including any such shares beneficially or indirectly owned or
     controlled by the Company, or any securities convertible into or
     exchangeable for Common Stock, until after the Business Day set forth on
     Schedule I hereto, except for: (A) up to 2,000,000 shares of Common Stock
     in the aggregate issued in connection with acquisitions (including by
     consolidation, merger or similar transaction and including acquisitions of
     shares of any of its subsidiaries held by minority shareholders), provided
     that more than 2,000,000 such shares may be issued to the extent the
     purchaser or purchasers of such excess shares agree to be
<PAGE>
 
                                                                              11

     bound by the provisions of this paragraph until after the Business Day set
     forth on Schedule I hereto, (B) Common Stock issued in connection with the
     Agreement and Plan of Merger dated as of December 10, 1998, among the
     Company, Level 3 Acquisition Corporation, LLC, BusinessNet Limited and the
     individuals named therein, (C) Common Stock issued pursuant to any employee
     benefit plan, stock ownership or stock option plan or dividend reinvestment
     plan in effect on the Execution Date or options granted pursuant to any
     such plan in effect on the Execution Date, provided that such options
     cannot be exercised until the Business Day set forth on Schedule I hereto,
     (D) Common Stock issued in connection with the inclusion of the Common
     Stock in any Major Market Index, (E) maintaining the effectiveness of any
     registration statement in place on the Execution Date or otherwise
     permitted to be filed under this paragraph, (F) Common Stock issued in
     connection with the exercise of any warrants outstanding on the Execution
     Date, (G) Common Stock issued to prospective employees in connection with
     such employees being hired by the Company and (H) the Securities.

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

          (h)  The Company will apply the net proceeds from the sale of the
     Securities sold by it substantially in accordance with its statements under
     the caption "Use of Proceeds" in the Final Prospectus.
<PAGE>
 
                                                                              12

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

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

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

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

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

          (e)  The Representatives shall have received from Cravath, Swaine &
     Moore, counsel for the Underwriters, such opinion or opinions, dated the
     Closing Date and addressed to the Representatives on behalf of the
     Underwriters, with respect to the issuance and sale of the Securities, the
     Registration Statement, the Final Prospectus (together with any supplement
     thereto) and other related matters as the
<PAGE>
 
                                                                              13

     Representatives may reasonably require, and the Company shall have
     furnished to such counsel such documents as they request for the purpose of
     enabling them to pass upon such matters.

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

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

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

               (iii) since September 30, 1998, the date of the most recent
               financial statements included or incorporated by reference in the
               Final Prospectus (exclusive of any supplement thereto), there has
               not been, singularly or in the aggregate, any material adverse
               change in the properties, business, results of operations,
               financial condition, affairs or business prospects of the Company
               and its subsidiaries taken as a whole, whether or not arising
               from transactions in the ordinary course of business, except as
               set forth in or contemplated in the Final Prospectus (exclusive
               of any supplement thereto).
<PAGE>
 
                                                                              14

          (g) The Company shall have requested and caused Pricewaterhouse
     Coopers LLP to have furnished to the Representatives, at the Execution Time
     and at the Closing Date, letters, dated respectively as of the Execution
     Time and as of the Closing Date, in form and substance reasonably
     satisfactory to the Representatives, confirming that they are independent
     accountants within the meaning of the Act and the Exchange Act and the
     respective applicable rules and regulations adopted by the Commission
     thereunder and Rule 101 of the Code of Professional Conduct of the American
     Institute of Certified Public Accountants and stating in effect that:

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

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

               (iii) they have performed certain other specified procedures as a
          result of which they determined that certain information of an
          accounting, financial or statistical nature (which is limited to
          accounting, financial or statistical information derived from the
          general accounting records of the Company and its subsidiaries) in the
          Final Prospectus and the Company's Proxy Statement on Schedule 14A
          dated June 22, 1998, incorporated by reference in the Registration
          Statement and the Final Prospectus, agrees with the accounting records
          of the Company and its subsidiaries, excluding any questions of legal
          interpretation.

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

          (h)  At the Execution Time and at the Closing Date, Arthur Andersen
     LLP shall have furnished to the Representatives a letter or letters, dated
     respectively as of the Execution Time and as of the Closing Date, in form
     and substance reasonably satisfactory to the Representatives, confirming
     that they are independent accountants within the meaning of the Act and the
     Exchange Act and the applicable rules and
<PAGE>
 
                                                                              15

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

               (i) based upon (x) their review, in accordance with standards
          established under Statement on Auditing Standards No. 71, of the
          unaudited interim financial information included in the Company's
          quarterly report on Form 10-Q for the three-month and nine-month
          periods ended September 30, 1998, included or incorporated by
          reference in the Registration Statement and Final Prospectus and of
          the unaudited financial information included as an attachment to the
          letter or letters referred to in this paragraph for the year ended
          December 31, 1998, and the three months ended December 31, 1998, and
          (y) the procedures detailed in such letter with respect to the period
          subsequent to December 31, 1998, including the reading of the minutes
          and inquiries of certain officials of the Company who have
          responsibility for financial and accounting matters and certain other
          limited procedures requested by the Representatives and described in
          detail in such letter, nothing has come to their attention that causes
          them to believe that:

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

                    (2) with respect to the period subsequent to December 31,
               1998, there were any increases, at a specified date not more than
               five business days prior to the date of the letter, in the long-
               term debt of the Company and its subsidiaries or decreases in the
               stockholders' equity of the Company or decreases in total current
               assets of the Company and its subsidiaries or any change in
               capital stock of the Company and its subsidiaries, as compared
               with the amounts shown on the December 31, 1998 consolidated
               balance sheet included as an attachment to the letter or letters
               referred to in this paragraph or for the period from January 1,
               1999, to such specified date there were any
<PAGE>
 
                                                                              16

               decreases, as compared with the corresponding period in the
               immediately preceding quarter, in revenue, cost of revenue,
               operating earnings, EBITDA (as defined in the Final Prospectus)
               or in total or per share amounts of net earnings, except in all
               instances for increases, changes or decreases set forth in such
               letter, in which case the letter shall be accompanied by an
               explanation by the Company as to the significance thereof unless
               said explanation is not deemed necessary by the Representatives;
               and

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

               (ii) they have performed certain other specified procedures as a
          result of which they determined that certain information of an
          accounting, financial or statistical nature (which is limited to
          accounting, financial or statistical information derived from the
          general accounting records of the Company and its subsidiaries) set
          forth in the Registration Statement and the Final Prospectus and in
          Exhibit 12 to the Registration Statement, and the information included
          or incorporated by reference in the Company's Quarterly Reports on
          Form 10-Q for the periods ended March 31, 1998, June 30, 1998, and
          September 30, 1998, incorporated by reference in the Registration
          Statement and the Final Prospectus, agrees with the accounting records
          of the Company and its subsidiaries, excluding any questions of legal
          interpretation.

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

          (i)  Subsequent to the Execution Time or, if earlier, the dates as of
     which information is given in the Registration Statement (exclusive of any
     amendment thereof) and the Final Prospectus (exclusive of any supplement
     thereto), there shall not have been (i) any increase, change or decrease
     specified in the letter or letters referred to in paragraph (h) of this
     Section 6 or (ii) any change, or any development involving a prospective
     change, in or affecting the properties, business, results of operations,
     financial condition, affairs or business prospects of the Company and its
     subsidiaries, taken as a whole, whether or not arising from transactions in
     the ordinary course of business, except as set forth in or contemplated in
     the Final Prospectus (exclusive of any supplement thereto) the effect of
     which, in any case
<PAGE>
 
                                                                              17

     referred to in clause (i) or (ii) above, is, in the sole judgment of the
     Representatives, so material and adverse as to make it impractical or
     inadvisable to proceed with the offering or delivery of the Securities as
     contemplated by the Final Prospectus (exclusive of any supplement thereto).

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

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

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

          If any of the conditions specified in this Section 6 shall not have
been fulfilled in all material respects when and as provided in this Agreement,
or if any of the opinions and certificates mentioned above or elsewhere in this
Agreement shall not be in all material respects reasonably satisfactory in form
and substance to the Representatives and counsel for the Underwriters, this
Agreement and all obligations of the Underwriters hereunder may be canceled at,
or at any time prior to, the Closing Date by the Representatives.  Notice of
such cancelation shall be given to the Company in writing or by telephone or
facsimile confirmed in writing.

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

          7.  Reimbursement of Underwriters' Expenses.  If the sale of the
              ----------------------------------------                    
Securities provided for herein is not consummated because any condition to the
obligations of the Underwriters set forth in Section 6 hereof is not satisfied,
because of any termination pursuant to Section 10 hereof or because of any
refusal, inability or failure on the part of the Company to perform any
agreement herein or comply with any provision hereof, in each case, other than
by reason of a default by any of the Underwriters, the Company will reimburse
the Underwriters severally through Salomon Smith Barney Inc. on demand for all
<PAGE>
 
                                                                              18

reasonable out-of-pocket expenses (including reasonable fees and disbursements
of counsel) that shall have been incurred by them in connection with the
proposed purchase and sale of the Securities.  Except as provided in the
preceding sentence or elsewhere in this Agreement, the Underwriters shall be
responsible for all costs and expenses incurred by them in connection with their
purchase of the Securities hereunder and the resale of any of the Securities,
including, without limitation, their own out-of-pocket lodging, meal and other
"roadshow" expenses and fees and disbursements of counsel for the Underwriters
and (ii) such other "roadshow" expenses as shall be agreed upon by the Company
and the Representatives.

          8.  Indemnification and Contribution.  (a)  The Company agrees to
              ---------------------------------                            
indemnify and hold harmless each Underwriter, the directors, officers, employees
and agents of each Underwriter and each person who controls any Underwriter
within the meaning of either the Act or the Exchange Act against any and all
losses, claims, damages or liabilities, joint or several, to which they or any
of them may become subject under the Act, the Exchange Act or other Federal or
state statutory law or regulation, at common law or otherwise, insofar as such
losses, claims, damages or liabilities (or actions in respect thereof) arise out
of or are based upon any untrue statement or alleged untrue statement of a
material fact contained in the Registration Statement as originally filed or in
any amendment thereof, or in the Basic Prospectus, any Preliminary Final
Prospectus or the Final Prospectus, or in any amendment thereof or supplement
thereto, or arise out of or are based upon the omission or alleged omission to
state therein a material fact required to be stated therein or necessary to make
the statements therein not misleading, and agrees to reimburse each such
indemnified party, as incurred, for any legal or other expenses reasonably
incurred by them in connection with investigating or defending any such loss,
claim, damage, liability or action; provided, however, that the Company will not
                                    --------  -------                           
be liable in any such case to the extent that any such loss, claim, damage or
liability arises out of or is based upon any such untrue statement or alleged
untrue statement or omission or alleged omission made therein in reliance upon
and in conformity with written information furnished to the Company by or on
behalf of any Underwriter through the Representatives specifically for inclusion
therein; provided further, that with respect to any untrue statement or omission
         ----------------                                                       
of material fact made in the Basic Prospectus or any Preliminary Final
Prospectus, the indemnity agreement contained in this Section 8(a) shall not
inure to the benefit of any Underwriter from whom the person asserting any such
loss, claim, damage or liability purchased the securities concerned, to the
extent that any such loss, claim, damage or liability of such Underwriter occurs
under the circumstance where it shall have been determined by a court of
competent jurisdiction by final and nonappealable judgment that such loss,
claim, damage or liability results from the fact that (i) the Company had
previously furnished copies of the Final Prospectus to the Representatives, (ii)
delivery of the Final Prospectus was required by the Act to be made to such
person, (iii) the untrue statement or omission of a material fact contained in
the Basic Prospectus or the Preliminary Final Prospectus was corrected in the
Final Prospectus, (iv) there was not sent or given to such person, at or prior
to the written confirmation of the
<PAGE>
 
                                                                              19

sale of such securities to such person, a copy of the Final Prospectus and (v)
such correction would have cured the defect giving rise to such loss, claim,
damage or liability. This indemnity agreement will be in addition to any
liability which the Company may otherwise have.

          (b)  Each Underwriter severally and not jointly agrees to indemnify
and hold harmless the Company, each of its directors, each of its officers who
signs the Registration Statement, and each person who controls the Company
within the meaning of either the Act or the Exchange Act, to the same extent as
the foregoing indemnity from the Company to each Underwriter, but only with
reference to written information relating to such Underwriter furnished to the
Company by or on behalf of such Underwriter through the Representatives
specifically for inclusion in the documents referred to in the foregoing
indemnity.  This indemnity agreement will be in addition to any liability which
any Underwriter may otherwise have.  The Company acknowledges that (i) the list
of Underwriters and their respective participation in the sale of the
Securities, (ii) the sentences related to concessions and reallowances and (iii)
the paragraphs related to stabilization, syndicate covering transactions,
penalty bids and passive market making, under the heading "Underwriting" in any
Preliminary Final Prospectus and the Final Prospectus, constitute the only
information furnished in writing by or on behalf of the several Underwriters for
inclusion in any Preliminary Final Prospectus or the Final Prospectus.

          (c)  Promptly after receipt by an indemnified party under this Section
8 of notice of the commencement of any action, such indemnified party will, if a
claim in respect thereof is to be made against the indemnifying party under this
Section 8, notify the indemnifying party in writing of the commencement thereof;
but the failure so to notify the indemnifying party (i) will not relieve it from
liability under paragraph (a) or (b) above unless and to the extent it did not
otherwise learn of such action and such failure results in the forfeiture by the
indemnifying party of substantial rights and defenses and (ii) will not, in any
event, relieve the indemnifying party from any obligations to any indemnified
party other than the indemnification obligation provided in paragraph (a) or (b)
above.  The indemnifying party shall be entitled to appoint counsel of the
indemnifying party's choice at the indemnifying party's expense to represent the
indemnified party in any action for which indemnification is sought (in which
case the indemnifying party shall not thereafter be responsible for the fees and
expenses of any separate counsel retained by the indemnified party or parties
except as set forth below); provided, however, that such counsel shall be
                            --------  -------                            
reasonably satisfactory to the indemnified party.  Notwithstanding the
indemnifying party's election to appoint counsel to represent the indemnified
party in an action, the indemnified party shall have the right to employ
separate counsel (including local counsel), and the indemnifying party shall
bear the reasonable fees, costs and expenses of such separate counsel if (i) the
use of counsel chosen by the indemnifying party to represent the indemnified
party would present such counsel with a conflict of interest, (ii) the actual or
potential defendants in, or targets of, any such action include both the
indemnified party and
<PAGE>
 
                                                                              20

the indemnifying party and the indemnified party shall have reasonably concluded
that there may be legal defenses available to it and/or other indemnified
parties which are different from or additional to those available to the
indemnifying party, (iii) the indemnifying party shall not have employed counsel
reasonably satisfactory to the indemnified party to represent the indemnified
party within a reasonable time after notice of the institution of such action or
(iv) the indemnifying party shall authorize the indemnified party to employ
separate counsel at the expense of the indemnifying party. An indemnifying party
will not, without the prior written consent of the indemnified parties, settle
or compromise or consent to the entry of any judgment with respect to any
pending or threatened claim, action, suit or proceeding in respect of which
indemnification or contribution may be sought hereunder (whether or not the
indemnified parties are actual or potential parties to such claim or action)
unless such settlement, compromise or consent includes an unconditional release
of each indemnified party from all liability arising out of such claim, action,
suit or proceeding. It is understood, however, that the Company shall, in
connection with any one such action or separate but substantially similar or
related actions in the same jurisdiction arising out of the same general
allegations or circumstances, be liable for the reasonable fees and expenses of
only one separate firm of attorneys (in addition to any local counsel) at any
time for all such Underwriters and controlling persons, which firm shall be
designated in writing by Salomon Smith Barney Inc. An indemnifying party shall
not be liable under this Section 8 to any indemnified party regarding any
settlement or compromise or consent to the entry of any judgment with respect to
any pending or threatened claim, action, suit or proceeding in respect of which
indemnification or contribution may be sought hereunder (whether or not the
indemnified parties are actual or potential parties to such claim or action)
unless such settlement, compromise or consent is consented to by such
indemnifying party, which consent shall not be unreasonably withheld.

          (d)  In the event that the indemnity provided in paragraph (a) or (b)
of this Section 8 is unavailable to or insufficient to hold harmless an
indemnified party for any reason, the Company and the Underwriters severally
agree to contribute to the aggregate losses, claims, damages and liabilities
(including legal or other expenses reasonably incurred in connection with
investigating or defending same) (collectively "Losses") to which the Company
and one or more of the Underwriters may be subject in such proportion as is
appropriate to reflect the relative benefits received by the Company on the one
hand and by the Underwriters on the other from the offering of the Securities;
provided, however, that in no case shall any Underwriter (except as may be
- --------  -------                                                         
provided in any agreement among underwriters relating to the offering of the
Securities) be responsible for any amount in excess of the underwriting discount
or commission applicable to the Securities purchased by such Underwriter
hereunder.  If the allocation provided by the immediately preceding sentence is
unavailable for any reason, the Company and the Underwriters severally shall
contribute in such proportion as is appropriate to reflect not only such
relative benefits but also the relative fault of the Company on the one hand and
of the Underwriters on the other in connection with the statements or omissions
which resulted in such Losses as well as any
<PAGE>
 
                                                                              21

other relevant equitable considerations. Benefits received by the Company shall
be deemed to be equal to the total net proceeds from the offering (before
deducting expenses) received by it, and benefits received by the Underwriters
shall be deemed to be equal to the total underwriting discounts and commissions,
in each case as set forth on the cover page of the Final Prospectus. Relative
fault shall be determined by reference to, among other things, whether any
untrue or any alleged untrue statement of a material fact or the omission or
alleged omission to state a material fact relates to information provided by the
Company on the one hand or the Underwriters on the other, the intent of the
parties and their relative knowledge, access to information and opportunity to
correct or prevent such untrue statement or omission. The Company and the
Underwriters agree that it would not be just and equitable if contribution were
determined by pro rata allocation or any other method of allocation which does
not take account of the equitable considerations referred to above.
Notwithstanding the provisions of this paragraph (d), no person guilty of
fraudulent misrepresentation (within the meaning of Section 11(f) of the Act)
shall be entitled to contribution from any person who was not guilty of such
fraudulent misrepresentation. For purposes of this Section 8, each person who
controls an Underwriter within the meaning of either the Act or the Exchange Act
and each director, officer, employee and agent of an Underwriter shall have the
same rights to contribution as such Underwriter, and each person who controls
the Company within the meaning of either the Act or the Exchange Act, each
officer of the Company who shall have signed the Registration Statement and each
director of the Company shall have the same rights to contribution as the
Company, subject in each case to the applicable terms and conditions of this
paragraph (d).

          9.  Default by an Underwriter.  If any one or more Underwriters shall
              --------------------------                                       
fail to purchase and pay for any of the Securities agreed to be purchased by
such Underwriter or Underwriters hereunder and such failure to purchase shall
constitute a default in the performance of its or their obligations under this
Agreement, the remaining Underwriters shall be obligated severally to take up
and pay for (in the respective proportions which the amount of Securities set
forth opposite their names in Schedule I hereto bears to the aggregate amount of
Securities set forth opposite the names of all the remaining Underwriters) the
Securities which the defaulting Underwriter or Underwriters agreed but failed to
purchase; provided, however, that in the event that the aggregate amount of
          --------  -------                                                
Securities which the defaulting Underwriter or Underwriters agreed but failed to
purchase shall exceed 10% of the aggregate amount of Securities set forth in
Schedule I hereto, the remaining Underwriters shall have the right to purchase
all, but shall not be under any obligation to purchase any, of the Securities,
and if such nondefaulting Underwriters do not purchase all the Securities, this
Agreement will terminate without liability to any nondefaulting Underwriter or
the Company.  In the event of a default by any Underwriter as set forth in this
Section 9, the Closing Date shall be postponed for such period, not exceeding
five Business Days, as the Representatives shall determine in order that the
required changes in the Registration Statement and the Final Prospectus or in
any other documents or arrangements may be effected.  Nothing contained in this
Agreement shall relieve any defaulting
<PAGE>
 
                                                                              22

Underwriter of its liability, if any, to the Company and any nondefaulting
Underwriter for damages occasioned by its default hereunder.

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

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

          12.  Notices.  All communications hereunder will be in writing and
               --------                                                     
effective only on receipt, and, if sent to the Representatives, will be mailed,
delivered or telefaxed to the Salomon Smith Barney Inc. General Counsel (fax
no.: (212) 816-7912) and confirmed to the General Counsel, Salomon Smith Barney
Inc., at 388 Greenwich Street, New York, New York, 10013, Attention: General
Counsel; or, if sent to the Company, will be mailed, delivered or telefaxed to
Level 3 Communications, Inc. (fax no.: (303) 926-3467) Attention: General
Counsel and confirmed to it at 1450 Infinite Drive, Louisville, Colorado 80027,
Attention: General Counsel.

          13.  Successors.  This Agreement will inure to the benefit of and be
               -----------                                                    
binding upon the parties hereto and their respective successors and the
officers, directors, employees, agents and controlling persons referred to in
Section 8 hereof, and no other person will have any right or obligation
hereunder.
<PAGE>
 
                                                                              23

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

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

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

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

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

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

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

          "Commission" shall mean the Securities and Exchange Commission.

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

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

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

          "Final Prospectus" shall mean the prospectus supplement relating to
     the Securities that was first filed pursuant to Rule 424(b) after the
     Execution Time, together with the Basic Prospectus.
<PAGE>
 
                                                                              24

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

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

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

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

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

          "Rule 462(b) Registration Statement" shall mean a registration
     statement and any amendments thereto filed pursuant to Rule 462(b) relating
     to the offering covered by the registration statement referred to in
     Section 1(a) hereof.
<PAGE>
 
                                                                              25

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

                                Very truly yours,



                                Level 3 Communications, Inc.

                                By: /s/ Thomas C. Stortz
                                    .........................................
                                    Name:  Thomas C. Stortz
                                    Title: Sr. Vice President

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

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

By:  Salomon Smith Barney Inc.

By: /s/ D. Scott Miller
    ......................................
    Name:  D. Scott Miller
    Title: Managing Director

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


Underwriting Agreement dated

Registration Statement No. 333-68887

Representatives:  Salomon Smith Barney Inc.
                  Goldman, Sachs & Co.
                  Credit Suisse First Boston Corporation
                  Merrill Lynch, Pierce, Fenner & Smith Incorporated
                  J.P. Morgan Securities Inc.
                  Morgan Stanley & Co. Incorporated

Title, Purchase Price and Description of Securities:

     Title:  Common Stock

     Number of Underwritten Securities:  25,000,000

     Number of Option Securities:  3,750,000

     Price to Public per Share (include accrued dividends, if any):  $54.00

     Price to Public -- total for Underwritten Securities:  $1,350,000,000

     Underwriting Discount per Share:  $1.89

     Underwriting Discount -- total for Underwritten Securities:  $47,250,000

     Proceeds to Company per Share:  $52.11

     Proceeds to Company -- total for Underwritten Securities:  $1,302,750,000

     Other provisions:  None

Closing Date, Time and Location:  March 9, 1999   at 10:00 a.m. at Cravath,
Swaine & Moore, 825 Eighth Avenue, New York, New York 10019

Type of Offering:  Non-Delayed

Date referred to in Section 5(f) after which securities may be issued without
the consent of Salomon Smith Barney Inc.:  90 days from the Execution Date.
<PAGE>
 
Modification of items to be covered by the letter from
  Arthur Andersen LLP or PricewaterhouseCoopers LLP delivered pursuant to
  Section 6(h) or 6(g) at the Execution Time:  None
<PAGE>
 
                                  SCHEDULE II

<TABLE>
<CAPTION>
                                                         Number of Underwritten  
Underwriters                                           Securities to be Purchased
- ------------                                           -------------------------- 
<S>                                                                    <C>
Salomon Smith Barney Inc..............................................  6,377,500
Goldman, Sachs & Co...................................................  6,377,500
Credit Suisse First Boston Corporation................................  2,125,000
Merrill Lynch, Pierce, Fenner & Smith Incorporated....................  2,125,000
J.P. Morgan Securities Inc............................................  2,125,000
Morgan Stanley & Co. Incorporated.....................................  2,125,000
BancBoston Robertson Stephens Inc.....................................    430,000
Bear, Stearns & Co. Inc...............................................    430,000
Donaldson, Lufkin & Jenrette Securities Corporation...................    430,000
Hambrecht & Quist LLC.................................................    430,000
Lazard Freres & Co. LLC...............................................    430,000
NationsBanc Montgomery Securities LLC.................................    430,000
Warburg Dillon Read LLC...............................................    430,000
Dain Rauscher Wessels, a division of Dain Rauscher
 Incorporated.........................................................    245,000
Kirkpatrick, Pettis, Smith, Polian, Inc...............................    245,000
The Robinson-Humphrey Company, LLC....................................    245,000
                                                                       ----------
   Total.............................................................. 25,000,000
                                                                       ==========
</TABLE>
<PAGE>
 
                                  SCHEDULE III

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

PKS Information Services, Inc.
Level 3 Holdings, Inc.
KCP, Inc.
Level 3 Telecom Holdings, Inc.
Level 3 Communications, LLC
PKS Systems Integration LLC
PKS Computer Services LLC
Continental Holdings Inc.
<PAGE>
 
                                   EXHIBIT A

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


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

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

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

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

          5.  The Company is not and, after giving effect to the offering and
sale of the Securities and the application of the proceeds thereof as described
in the Final Prospectus, will not be an "investment company" as defined in the
Investment Company Act of 1940, as amended.

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

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

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

          9.  The Company's authorized equity capitalization as of January 1,
1999, is as set forth in the Final Prospectus; the capital stock of the Company
conforms in all material respects to the description thereof contained in the
Final Prospectus; the Securities have been duly and validly authorized, and,
when issued and delivered to and paid for by the Underwriters pursuant to this
Agreement, will be fully paid and nonassessable; the certificates for the
Securities are in valid and sufficient form; and the holders of outstanding
shares of capital stock of the Company are not entitled to preemptive or other
rights to subscribe for the Securities; and, except as set forth in the Final
Prospectus and, except for outstanding warrants and options to purchase shares
of Common Stock that in the aggregate represent less than 1% of the Common Stock
outstanding on the date of this Agreement, to
<PAGE>
 
the knowledge of such counsel, no options, warrants or other rights to purchase,
agreements or other obligations to issue, or rights to convert any obligations
into or exchange any securities for, shares of capital stock of or ownership
interests in the Company are outstanding.

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

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

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

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

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

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

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

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

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

5.   Network Construction and Cost-Sharing Agreement between Level 3
     Communications, Inc. and INTERNEXT, LLC, dated July 20, 1998

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

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

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

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

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

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

12.  Agreement between Kiewit Coal Properties, Inc. and Kiewit Mining Group,
     Inc., dated January 8, 1992.
<PAGE>
 
13.  Separation Agreement by and among Peter Kiewit Sons', Inc., Kiewit
     Diversified Group, Inc., PKS Holdings, Inc., and Kiewit Construction Group,
     Inc., dated December 8, 1997.

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

15.  Tax Sharing Agreement by and between Peter Kiewit Sons', Inc. and PKS
     Holdings, Inc., dated March 26, 1998.

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

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

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

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

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

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

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

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

24.  Intercity Network Infrastructure Contract between Level 3 Communications,
     LLC and Kiewit Construction Company, dated June 15, 1998.
<PAGE>
 
                                   EXHIBIT B

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


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

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

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

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

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

          Such counsel has not itself checked the accuracy or completeness of,
or otherwise verified, the information furnished with respect to other matters
in the Registration Statement and the Final Prospectus.  Such counsel has
generally reviewed and discussed with representatives of and counsel for the
Underwriters and with certain officers and employees of, and counsel for, the
Company the information furnished, whether or not subject to its check and
verification.  Although such counsel has not independently checked or verified
and is neither passing upon nor assuming any responsibility for the factual
accuracy, completeness or fairness of the statements contained in the
Registration Statement and the Final Prospectus or any amendment thereof or
supplement thereto, nothing has come to its attention which would cause it to
believe that the statements included in the Final Prospectus under the headings
"Risk Factors--We are subject to significant regulation that could change in an
adverse manner", "--Canadian law currently does not permit us to offer services
in Canada" and "--Potential regulation of internet service providers could
adversely affect our operations" and "Business--Regulation", including the
statements in respect to Canadian law or regulation, on the date thereof or on
the Closing Date contain an untrue statement of material fact or omit to state a
material fact necessary to make the statements therein, in the light of the
circumstances under which they were made, not misleading.

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

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

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

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


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

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

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

          4.  The information included in the Final Prospectus under the
headings "Risk Factors--Environmental liabilities from our historical operations
could be material" and "Business--Legal Proceedings", insofar as such headings
summarize matters of law, fairly summarize the matters therein described.
<PAGE>
 
          Such opinion may be limited to the laws of the State of Nebraska, the
Federal laws of the United States of America and the General Corporation Law and
the Limited Liability Company Act of the State of Delaware.

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

<PAGE>
 
 
                                                                   EXHIBIT 23.1
 
                      CONSENT OF INDEPENDENT ACCOUNTANTS

  We consent to the inclusion or incorporation by reference in the Prospectus
Supplement dated March 4, 1999 to the Registration Statement of Level 3
Communications, Inc. on Form S-3 of our reports dated March 30, 1998, on our
audits of the consolidated financial statements of Level 3 Communications, Inc.,
formerly Peter Kiewit Sons', Inc., the financial statements and financial
statement schedule of Kiewit Construction & Mining Group, a business group of
Peter Kiewit Sons', Inc., and the financial statements of Diversified Group, a
business group of Peter Kiewit Sons', Inc. as of December 27, 1997 and December
28, 1996 and for each of the three years in the period ended December 27, 1997
which reports are included in the 1997 Annual Report on Form 10-K/A of Level 3
Communications, Inc., formerly Peter Kiewit Sons', Inc. We also consent to the
reference to our firm the Prospectus Supplement under the caption "Experts."
 
                                          PricewaterhouseCoopers LLP
                                          
                                          /s/ PricewaterhouseCoopers LLP
 
Omaha, Nebraska
March 4, 1999

<PAGE>
 
 
                                                                   EXHIBIT 23.2
 
                      CONSENT OF INDEPENDENT ACCOUNTANTS

  We consent to the incorporation by reference in the Prospectus Supplement
dated March 4, 1999 to the Registration Statement of Level 3 Communications,
Inc. on Form S-3 of our report dated March 13, 1998, except Note 2 as to which
the date is May 20, 1998, on our audits of the consolidated financial statements
and financial statement schedules of RCN Corporation and Subsidiaries as of
December 31, 1997 and 1996, and for the years ended December 31, 1997, 1996 and
1995, which report is incorporated by reference in the 1997 Annual Report on
Form 10-K/A of Level 3 Communications, Inc., formerly Peter Kiewit Sons', Inc.
We also consent to the reference to our firm in the Prospectus Supplement under
the caption "Experts."
 
                                          PricewaterhouseCoopers LLP
                                          
                                          /s/ PricewaterhouseCoopers LLP 
 
Philadelphia, Pennsylvania
March 4, 1999 

<PAGE>
 
                                                                 EXHIBIT 99.1


February 25, 1999


Level 3 Communications, Inc.
3555 Farnam Street
Omaha, Nebraska  68131


Ladies and Gentlemen:

        The undersigned hereby consents to being named in the Registration 
Statements on Form S-3 of Level 3 Communications, Inc. filed with the Securities
and Exchange Commission, and any amendments thereto, as a person who is to 
become a director of Level 3 Communications, Inc.



                                        Very truly yours,


                                        /s/ Philip B. Fletcher


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