NEXTEL COMMUNICATIONS INC
10-Q, 1999-05-17
RADIOTELEPHONE COMMUNICATIONS
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<PAGE>   1

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 10-Q

(Mark One)
  [ X ]        QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
               SECURITIES EXCHANGE ACT OF 1934

               For the quarterly period ended March 31, 1999

                                       OR

  [   ]        TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
               SECURITIES EXCHANGE ACT OF 1934

               For the transition period from __________  to __________

                         Commission File Number 0-19656

                           NEXTEL COMMUNICATIONS, INC.
             (Exact name of registrant as specified in its charter)

                 DELAWARE                              36-3939651
     (State or other jurisdiction of       (I.R.S. Employer Identification No.)
     incorporation or organization)

2001 EDMUND HALLEY DRIVE, RESTON, VIRGINIA                 20191
 (Address of principal executive offices)                (Zip Code)

       Registrant's telephone number, including area code: (703) 433-4000


       Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days: Yes X  No
                                             ---   ---

       Indicate the number of shares outstanding of each of issuer's classes of
common stock as of the latest practicable date:

<TABLE>
<CAPTION>
                                                   Number of Shares Outstanding
            Title of Class                              on April 30, 1999
            --------------                              -----------------
<S>                                                     <C>
Class A Common Stock, $0.001 par value                     278,126,194

   Class B Non-Voting Common Stock,                         17,830,000
           $0.001 par value
</TABLE>


<PAGE>   2

                  NEXTEL COMMUNICATIONS, INC. AND SUBSIDIARIES

                                      INDEX

<TABLE>
<CAPTION>
                                                                                                                  PAGE NO.
                                                                                                                  --------
<S>                                                                                                               <C>
PART I           FINANCIAL INFORMATION.

                 Item 1.         Financial Statements - Unaudited.

                                 Condensed Consolidated Balance Sheets -
                                       As of March 31, 1999 and December 31, 1998.                                       3

                                 Condensed Consolidated Statements of Operations and Comprehensive
                                       Loss - For the Three Months Ended March 31, 1999 and 1998.                        4

                                 Condensed Consolidated Statement of Changes in Stockholders' (Deficit)
                                       Equity - For the Three Months Ended March 31, 1999.                               5

                                 Condensed Consolidated Statements of Cash Flows -
                                       For the Three Months Ended March 31, 1999 and 1998.                               6

                                 Notes to Condensed Consolidated Financial Statements.                                   7

                 Item 2.         Management's Discussion and Analysis of Financial
                                       Condition and Results of Operations.                                             13

                 Item 3.         Quantitative and Qualitative Disclosures About Market Risk.                            26

PART II          OTHER INFORMATION.

                 Item 1.         Legal Proceedings.                                                                     29

                 Item 2.         Changes in Securities.                                                                 29

                 Item 6.         Exhibits and Reports on Form 8-K.                                                      29
</TABLE>


<PAGE>   3

                                     PART I

ITEM 1. FINANCIAL STATEMENTS - UNAUDITED.

                  NEXTEL COMMUNICATIONS, INC. AND SUBSIDIARIES
                      CONDENSED CONSOLIDATED BALANCE SHEETS
                   AS OF MARCH 31, 1999 AND DECEMBER 31, 1998
                             (DOLLARS IN THOUSANDS)
                                    UNAUDITED

<TABLE>
<CAPTION>
                                                                                         1999               1998
                                                                                     ------------       ------------
<S>                                                                                  <C>                <C>
                                                                ASSETS
CURRENT ASSETS
    Cash and cash equivalents (of which $109,029 and $121,116
       is restricted)                                                                $    245,758       $    321,379
    Accounts and notes receivable, less allowance for doubtful
       accounts of $68,115 and $62,547                                                    439,256            443,447
    Subscriber unit and accessory inventory                                                77,505             62,639
    Assets held for sale                                                                   67,354            132,370
    Other                                                                                  58,703             92,877
                                                                                     ------------       ------------
                  Total current assets                                                    888,576          1,052,712

PROPERTY, PLANT AND EQUIPMENT, net of accumulated depreciation
    of $1,374,113 and $1,202,066                                                        5,085,416          4,915,025
INTANGIBLE ASSETS, net of accumulated amortization
    of $941,488 and $917,311                                                            4,671,545          4,937,124
OTHER ASSETS                                                                              776,049            668,500
                                                                                     ------------       ------------
                                                                                     $ 11,421,586       $ 11,573,361
                                                                                     ============       ============

                                             LIABILITIES AND STOCKHOLDERS' (DEFICIT) EQUITY

CURRENT LIABILITIES
    Accounts payable, accrued expenses and other                                     $  1,267,580       $  1,172,351
    Current portion of long-term debt                                                       6,679              9,875
                                                                                     ------------       ------------
                  Total current liabilities                                             1,274,259          1,182,226
LONG-TERM DEBT (NOTE 3)                                                                 8,005,738          7,710,373
DEFERRED INCOME TAXES                                                                     762,021            771,326
OTHER                                                                                      77,772             73,005
                                                                                     ------------       ------------
                  Total liabilities                                                    10,119,790          9,736,930
                                                                                     ------------       ------------
CONTINGENCIES (NOTE 4)
MINORITY INTEREST                                                                          21,083             28,677
MANDATORILY REDEEMABLE PREFERRED STOCK (NOTE 5)                                         1,624,287          1,578,252
STOCKHOLDERS' (DEFICIT) EQUITY
    Preferred stock, Class A convertible redeemable,
       7,905,981 shares issued and outstanding                                            290,545            290,545
    Preferred stock, Class B convertible, 82 shares issued and outstanding                     --                 --
    Common stock, Class A, 275,176,323 and 272,087,322 shares issued,
       274,573,481 and 271,386,227 shares outstanding                                         275                272
    Common stock, Class B, non-voting convertible, 17,830,000 shares
       issued and outstanding                                                                  18                 18
    Paid-in capital                                                                     4,358,510          4,379,724
    Accumulated deficit                                                                (4,840,633)        (4,401,193)
    Treasury stock, at cost, 602,842 and 701,095 shares                                   (12,013)           (13,398)
    Deferred compensation, net                                                             (4,343)            (1,989)
    Accumulated other comprehensive loss                                                 (135,933)           (24,477)
                                                                                     ------------       ------------
                  Total stockholders' (deficit) equity                                   (343,574)           229,502
                                                                                     ------------       ------------
                                                                                     $ 11,421,586       $ 11,573,361
                                                                                     ============       ============
</TABLE>

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


                                       3
<PAGE>   4

                  NEXTEL COMMUNICATIONS, INC. AND SUBSIDIARIES
     CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS
               FOR THE THREE MONTHS ENDED MARCH 31, 1999 AND 1998
                (DOLLARS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
                                    UNAUDITED

<TABLE>
<CAPTION>
                                                                                        1999               1998
                                                                                     -----------        -----------
<S>                                                                                  <C>                <C>
OPERATING REVENUES                                                                   $   663,805        $   327,134
                                                                                     -----------        -----------

OPERATING EXPENSES
    Cost of revenues                                                                     162,320            102,428
    Selling, general and administrative                                                  465,665            329,739
    Depreciation and amortization                                                        228,440            184,495
                                                                                     -----------        -----------
                                                                                         856,425            616,662
                                                                                     -----------        -----------

OPERATING LOSS                                                                          (192,620)          (289,528)
                                                                                     -----------        -----------

OTHER INCOME (EXPENSE)
    Interest expense                                                                    (198,059)          (145,380)
    Interest income                                                                        3,427             14,353
    Other, net                                                                           (62,027)                53
                                                                                     -----------        -----------
                                                                                        (256,659)          (130,974)
                                                                                     -----------        -----------

LOSS BEFORE INCOME TAX BENEFIT                                                          (449,279)          (420,502)

INCOME TAX BENEFIT                                                                         9,839             33,640
                                                                                     -----------        -----------

NET LOSS                                                                                (439,440)          (386,862)

MANDATORILY REDEEMABLE PREFERRED STOCK DIVIDENDS                                         (46,034)           (28,088)
                                                                                     -----------        -----------

LOSS ATTRIBUTABLE TO COMMON STOCKHOLDERS                                             $  (485,474)       $  (414,950)
                                                                                     ===========        ===========

LOSS PER SHARE ATTRIBUTABLE TO COMMON
    STOCKHOLDERS, BASIC AND DILUTED                                                  $     (1.66)       $     (1.53)
                                                                                     ===========        ============

WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING                                 291,625,000        270,385,000
                                                                                     ===========        ===========

COMPREHENSIVE LOSS, NET OF INCOME TAX
    Net loss                                                                         $  (439,440)       $  (386,862)
    Unrealized gain on available-for-sale securities                                      27,641              9,774
    Foreign currency translation adjustment                                             (139,097)            (3,470)
                                                                                     -----------        -----------

COMPREHENSIVE LOSS                                                                   $  (550,896)       $  (380,558)
                                                                                     ===========        ===========
</TABLE>

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


                                       4
<PAGE>   5
s
                  NEXTEL COMMUNICATIONS, INC. AND SUBSIDIARIES
  CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' (DEFICIT) EQUITY
                    FOR THE THREE MONTHS ENDED MARCH 31, 1999
                             (DOLLARS IN THOUSANDS)
                                    UNAUDITED

<TABLE>
<CAPTION>
                                                    Class A               Class B               Class A               Class B
                                                Preferred Stock       Preferred Stock         Common Stock          Common Stock
                                             ---------------------   ------------------   --------------------   -------------------
                                               Shares      Amount    Shares      Amount     Shares      Amount     Shares     Amount
                                             ----------   --------   ------      ------   -----------   ------   ----------   ------
<S>                                           <C>         <C>        <C>         <C>      <C>          <C>       <C>          <C>
BALANCE, JANUARY 1, 1999                      7,905,981   $290,545       82      $   --   272,087,322   $  272   17,830,000   $   18
  Issuance of common stock:
      Exercise of options and warrants                                                      3,089,001        3
      Employee stock purchase plan
  Deferred compensation, net
  Unrealized gain on available-for-sale
      securities, net of income tax
  Foreign currency translation adjustment
  Mandatorily redeemable preferred
      stock dividends
  Other
  Net loss
                                             ----------   --------   ------      ------   -----------   ------   ----------   ------
BALANCE, MARCH 31, 1999                       7,905,981   $290,545       82      $   --   275,176,323   $  275   17,830,000   $   18
                                             ==========   ========   ======      ======   ===========   ======   ==========   ======

<CAPTION>
                                               Paid-in      Accumulated        Treasury Stock            Deferred
                                                                           -----------------------
                                               Capital        Deficit        Shares         Amount     Compensation
                                             -----------    ------------   -----------   ---------     ------------
<S>                                          <C>            <C>            <C>           <C>           <C>
BALANCE, JANUARY 1, 1999                     $ 4,379,724    $(4,401,193)     701,095     $ (13,398)     $ (1,989)
  Issuance of common stock:
      Exercise of options and warrants            19,150
      Employee stock purchase plan                  (320)                   (141,072)        2,741         
  Deferred compensation, net                       5,990                                                  (2,354)
  Unrealized gain on available-for-sale
      securities, net of income tax
  Foreign currency translation adjustment
  Mandatorily redeemable preferred
      stock dividends                            (46,034)
  Other                                                                       42,819        (1,356)
  Net loss                                                     (439,440)
                                             -----------    -----------    ---------     ---------      --------
BALANCE, MARCH 31, 1999                      $ 4,358,510    $(4,840,633)     602,842     $ (12,013)     $ (4,343)
                                             ===========    ===========    =========     =========      ========

<CAPTION>
                                                  Accumulated Other
                                             Comprehensive (Loss) Income
                                             ---------------------------
                                              Unrealized
                                                 Gain       Cumulative
                                               (Loss) on    Translation
                                              Investments   Adjustment       Total
                                              -----------   ----------    -----------
<S>                                           <C>           <C>           <C>
BALANCE, JANUARY 1, 1999                          (427)     $  (24,050)   $  229,502
  Issuance of common stock:
      Exercise of options and warrants                                        19,153
      Employee stock purchase plan                                             2,421
  Deferred compensation, net                                                   3,636
  Unrealized gain on available-for-sale
      securities, net of income tax             27,641                        27,641
  Foreign currency translation adjustment                     (139,097)     (139,097)
  Mandatorily redeemable preferred
      stock dividends                                                        (46,034)
  Other                                                                       (1,356)
  Net loss                                                                  (439,440)
                                               -------      ----------    ----------
BALANCE, MARCH 31, 1999                        $27,214      $ (163,147)   $ (343,574)
                                               =======      ==========    ==========
</TABLE>


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


                                       5
<PAGE>   6

                  NEXTEL COMMUNICATIONS, INC. AND SUBSIDIARIES
                 CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
               FOR THE THREE MONTHS ENDED MARCH 31, 1999 AND 1998
                             (DOLLARS IN THOUSANDS)
                                    UNAUDITED

<TABLE>
<CAPTION>
                                                                                        1999               1998
                                                                                     -----------        -----------
<S>                                                                                  <C>                <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
    Net loss                                                                         $  (439,440)       $  (386,862)
    Adjustments to reconcile net loss to net cash provided by (used in)
        operating activities:
        Amortization of deferred financing costs and accretion of senior
           redeemable notes, net of capitalized accreted interest
           of $3,866 and $8,845                                                          115,103            122,081
        Depreciation and amortization                                                    228,440            184,495
        Provision for losses on accounts receivable                                       34,792             22,163
        Deferred income tax benefit                                                       (9,839)           (33,640)
        Foreign currency transaction loss, net                                            63,615                849
        Other, net                                                                         4,514              4,568
        Change in current assets and liabilities, net of effects from
          acquisitions:
           Accounts and notes receivable                                                 (30,601)           (49,162)
           Subscriber unit and accessory inventory                                       (18,582)            (8,945)
           Other assets                                                                   22,477            (17,981)
           Accounts payable, accrued expenses and other                                  118,796             52,573
                                                                                     -----------        -----------
               Net cash provided by (used in) operating activities                        89,275           (109,861)
                                                                                     -----------        -----------

CASH FLOWS FROM INVESTING ACTIVITIES:
    Capital expenditures (Note 1)                                                       (477,838)          (602,114)
    Proceeds from sale of assets to affiliate (Note 2)                                   132,370                 --
    Payments for acquisitions and purchase of licenses, net of cash acquired             (14,401)           (86,230)
    Purchases of marketable securities                                                        --             (4,917)
    Proceeds from maturities and sales of marketable securities                               --            128,198
    Other investments in and advances to affiliates                                       (5,496)           (37,774)
                                                                                     -----------        -----------
               Net cash used in investing activities                                    (365,365)          (602,837)
                                                                                     -----------        -----------

CASH FLOWS FROM FINANCING ACTIVITIES:
    Issuance of debt securities                                                               --          1,401,013
    Issuance of mandatorily redeemable preferred stock                                        --            750,000
    Borrowings under long-term credit facilities                                         207,830          1,000,000
    Repayments under long-term credit facilities                                              --           (972,021)
    Revolving line of credit repayments, net                                             (24,000)          (192,676)
    Other long-term repayments, net                                                       (9,031)            (1,993)
    Deferred financing costs                                                                (351)           (86,578)
    Exercise of stock options, warrants and other                                         21,574             14,564
    Capital contributions from minority stockholders                                       4,447              4,077
                                                                                     -----------        -----------
               Net cash provided by financing activities                                 200,469          1,916,386
                                                                                     -----------        -----------

NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS                                     (75,621)         1,203,688
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD                                           321,379            301,601
                                                                                     -----------        -----------
CASH AND CASH EQUIVALENTS, END OF PERIOD                                             $   245,758        $ 1,505,289
                                                                                     ===========        ===========

SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
    Cash paid for interest, net of amounts capitalized of $5,303 and $3,543          $    40,883        $    26,409
                                                                                     ===========        ===========
</TABLE>

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


                                       6
<PAGE>   7

                  NEXTEL COMMUNICATIONS, INC. AND SUBSIDIARIES
              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                    UNAUDITED

NOTE 1 -- BASIS OF PRESENTATION.

       The condensed consolidated financial statements of Nextel Communications,
Inc. and subsidiaries ("Nextel") included herein have been prepared by Nextel
without audit, pursuant to the rules and regulations of the Securities and
Exchange Commission (the "Commission") and reflect all adjustments that are, in
the opinion of management, necessary for a fair statement of the results for the
interim periods. All adjustments made were normal recurring accruals.

       The condensed consolidated financial statements should be read in
conjunction with the consolidated financial statements and notes thereto
contained in Nextel's Annual Report on Form 10-K for the year ended December 31,
1998 (the "1998 Form 10-K"), and Nextel International, Inc.'s Annual Report on
Form 10-K for the year ended December 31, 1998 (the "Nextel International 1998
Form 10-K"), for matters related to operations of Nextel International, Inc., an
indirect, substantially wholly-owned subsidiary of Nextel, and its subsidiaries
("Nextel International"). Operating results for the interim periods are not
necessarily indicative of results for an entire year.

       RECLASSIFICATIONS -- Certain prior period amounts have been reclassified
to conform to the current year presentation.

       SUPPLEMENTAL CASH FLOW INFORMATION -- Total recorded capital expenditures
were $432.7 million and $591.1 million for the three months ended March 31, 1999
and 1998, respectively, reflecting decreases in amounts accrued and unpaid or
financed of $49.0 million and $19.8 million at March 31, 1999 and 1998,
respectively, compared to December 31, 1998 and 1997, respectively. Total
recorded capital expenditures include interest capitalized in connection with
the construction and development of Nextel's digital network ("Digital Mobile
Network") of approximately $9.2 million and $12.4 million during the three
months ended March 31, 1999 and 1998, respectively.

       RESTRICTED CASH AND CASH EQUIVALENTS -- At March 31, 1999 and December
31, 1998, approximately $109.0 million and $121.1 million, respectively, in cash
and cash equivalents held by Nextel International were not available to fund any
of the cash needs of Nextel's domestic business due to restrictions contained in
the indentures related to the senior redeemable discount notes issued by Nextel
International in March 1998 and March 1997.

       DIGITAL SUBSCRIBER UNIT AND ACCESSORY SALES AND RELATED COSTS -- The loss
generated from the sale of subscriber units used in Nextel's Digital Mobile
Network primarily results from Nextel's subsidy of digital subscriber units and
accessories and represents marketing costs. Consolidated digital subscriber unit
and accessory sales revenue and the related cost of sales, including current
period order fulfillment and installation related expenses and write downs of
digital subscriber unit inventory and related accessories for shrinkage and
obsolescence, are classified within selling, general and administrative expenses
as follows (dollars in thousands):

<TABLE>
<CAPTION>
                                                              THREE MONTHS ENDED

                                                                   MARCH 31
                                                       --------------------------------
                                                            1999               1998
                                                       --------------      ------------
<S>                                                   <C>                 <C>
Subscriber unit and accessory sales                   $      110,506      $     83,995
Cost of subscriber unit and accessory sales                  197,643           143,075
                                                             -------           -------
                                                      $      (87,137)     $    (59,080)
                                                             =======           =======
</TABLE>


                                       7
<PAGE>   8

       NEW ACCOUNTING PRONOUNCEMENTS -- In June 1998, the Financial Accounting
Standards Board issued Statement of Financial Accounting Standards No. 133,
"Accounting for Derivative Instruments and Hedging Activities" ("SFAS 133"),
which establishes accounting and reporting standards for derivative instruments
(including certain derivatives embedded in other contracts) and for hedging
activities by requiring that all derivatives be recognized in the balance sheet
and measured at fair value. SFAS 133 is effective for all quarters of fiscal
years beginning after June 15, 1999. The Company is in the process of evaluating
the potential impact of this standard on its financial position and results of
operations.

NOTE 2 -- SIGNIFICANT TRANSACTIONS AND DEVELOPMENTS.

       DOMESTIC -- ASSETS HELD FOR SALE.

       NEXTEL PARTNERS -- On January 29, 1999, Nextel, Nextel Partners, Inc.
("Nextel Partners") and certain other parties, including Motorola, Inc.
("Motorola") and Eagle River Investments, L.L.C. ("Eagle River"), an affiliate
of Mr. Craig O. McCaw ("Mr. McCaw"), entered into definitive agreements relating
to the capitalization, governance, financing and operation of Nextel Partners.
Nextel Partners plans to construct and operate a digital wireless system
utilizing digital transmission technology developed by Motorola (such technology
is referred to as the "integrated Digital Enhanced Network" or "iDEN") employed
in Nextel's national network in thirty-nine mid-size and smaller markets in the
United States. In connection with this transaction, Nextel sold assets, and is
in the process of transferring certain Federal Communications Commission ("FCC")
licenses, to Nextel Partners. In exchange, Nextel Partners issued to Nextel
equity representing about a 29% voting interest in Nextel Partners and having an
agreed value of $131.1 million and paid Nextel about $132.4 million in cash
(which remains subject to post-closing adjustments) related to the assets sold
and the reimbursement of costs and net operating expenses. The definitive
agreements also establish certain circumstances in which Nextel will have the
right or the obligation to purchase the remaining equity interests in Nextel
Partners at specified prices. The net book value of the assets sold is
classified as assets held for sale as of December 31, 1998.

       SALE OF NEXTBAND INTEREST -- On March 31, 1999, Nextel entered into
definitive agreements with NEXTLINK Communications, Inc. ("NEXTLINK") providing
for the sale of Nextel's interest in NEXTBAND Communications, L.L.C.
("NEXTBAND") to NEXTLINK. Nextel and NEXTLINK formed NEXTBAND to bid in an
auction of Local Multipoint Distribution System ("LMDS") spectrum licenses by
the FCC. In the auction, NEXTBAND was awarded LMDS licenses in 42 markets for a
bid price of about $134 million. Nextel paid its full one-half share of this 
bid price in 1998, which is classified as assets held for sale as of March 31,
1999. The purchase price for Nextel's interest in NEXTBAND will be $137.7
million, of which a minimum of $68.85 million will be paid in cash. NEXTLINK
may elect to pay the balance of the purchase price in either shares of NEXTLINK
common stock or in cash. The transaction is subject to receipt of necessary
regulatory approvals and to customary closing conditions. Nextel expects that
the transaction will be completed during the second quarter of 1999.

       INTERNATIONAL

       BRAZIL CURRENCY DEVALUATION -- During the quarter ending March 31, 1999,
there was a significant fluctuation in the value of the Brazilian real relative
to the U.S. dollar due to the real's recent devaluation. As a result of the
devaluation in the Brazilian real, Nextel International recorded a pre-tax
charge, net of minority interests, of about $45.1 million for foreign currency
transaction losses for the quarter ended March 31, 1999. This amount is based on
the outstanding amount of U.S. dollar-denominated debt of Nextel International's
Brazilian subsidiaries, the average exchange rate of the Brazilian real for the
quarter ended February 28, 1999 (in accordance with Nextel's consolidation
policy of utilizing accounts as of a date one month earlier than the date of the
relevant financial statements) and Nextel International's percentage ownership
interest in its Brazilian subsidiaries at the end of such period. Additionally,
Nextel International recorded a negative cumulative translation adjustment on
its balance sheet dated March 31, 1999 of approximately $136.1 million based on
the


                                       8
<PAGE>   9

exchange rate of the Brazilian real as of the end of the first quarter, which is
reflected as an adjustment to the cumulative translation adjustment account
within stockholders' deficit.

NOTE 3 -- LONG-TERM DEBT.

<TABLE>
<CAPTION>
                                                                                MARCH 31,          DECEMBER 31,
                                                                                  1999                 1998
                                                                               -----------         ------------
                                                                                    (dollars in thousands)
<S>                                                                             <C>                 <C>
11.5% SENIOR REDEEMABLE DISCOUNT NOTES DUE 2003,
        net of unamortized discount of $0                                       $   35,811          $   35,811
9.75% SENIOR REDEEMABLE DISCOUNT NOTES DUE 2004,
        net of unamortized discount of $0 and $12,800                            1,126,435           1,113,635
10.125% SENIOR REDEEMABLE DISCOUNT NOTES DUE 2004,
        net of unamortized discount of $62,710 and $66,491                         347,166             343,385
12.25% SENIOR REDEEMABLE DISCOUNT NOTES DUE 2004,
        net of unamortized discount of $812 and $1,083                               7,814               7,543
10.25% SENIOR REDEEMABLE DISCOUNT NOTES DUE 2005,
        net of unamortized discount of $21,927 and $22,411                          93,238              92,754
13.0%   SENIOR REDEEMABLE DISCOUNT NOTES DUE 2007
        (issued by Nextel International), net of unamortized
        discount of $317,116 and $337,065                                          634,347             614,398
10.65% SENIOR REDEEMABLE DISCOUNT NOTES DUE 2007,
        net of unamortized discount of $253,034 and $267,942                       586,966             572,058
9.75% SENIOR SERIAL REDEEMABLE DISCOUNT NOTES DUE 2007,
        net of unamortized discount of $326,042 and $344,849                       803,058             784,251
9.95% SENIOR SERIAL REDEEMABLE DISCOUNT NOTES DUE 2008,
        net of unamortized discount of  $509,686  and $536,495                   1,117,314           1,090,505
12.125% SENIOR REDEEMABLE DISCOUNT NOTES DUE 2008,
        (issued by Nextel International), net of unamortized
        discount of $276,321 and $289,349                                          453,679             440,651
12.0% SENIOR SERIAL REDEEMABLE NOTES DUE 2008,
        net of unamortized discount of  $4,171  and $4,228                         295,829             295,772
BANK CREDIT FACILITY, interest payable quarterly at an
        adjusted rate calculated either on the prime rate or
        LIBOR (6.94% to 8.63% - 1999; 7.06% to 10.50% - 1998)                    2,194,000           2,118,000
NEXTEL INTERNATIONAL VENDOR CREDIT FACILITIES, interest payable
        semiannually at 2.50% over the prime rate (10.25% to
        11.00% - 1999 and 1998)                                                    208,576             110,771
NEXTEL ARGENTINA BANK CREDIT FACILITY, interest payable quarterly at
        an adjusted rate calculated either on the prime rate or LIBOR
        (8.75% to 9.50% - 1999 and 1998)                                           100,000              83,500
OTHER                                                                                8,184              17,214
                                                                                ----------          ----------
                                                                                 8,012,417           7,720,248
Less current portion                                                                (6,679)             (9,875)
                                                                                ----------          ----------
                                                                                $8,005,738          $7,710,373
                                                                                ==========          ==========
</TABLE>

       INTERNATIONAL FINANCING -- In March 1999, Nextel Argentina S.R.L.
("Nextel Argentina") notified the administrative agent under the $100 million
credit facility (the "Argentina Credit Facility") of its anticipated
noncompliance with certain financial covenants under such facility applicable in
the first quarter of 1999. Nextel Argentina received a waiver from the lenders
under such facility with regard to such covenants for the first quarter of 1999.
On May 12, 1999, Nextel Argentina and the lenders under the Argentina Credit
Facility agreed


                                       9
<PAGE>   10

to certain amendments to the Argentina Credit Facility modifying the covenants
in question for future quarters (the "Argentina Amendments"). The effectiveness
of the Argentina Amendments is subject to customary conditions, which are
expected to be satisfied prior to May 28, 1999. The lenders have extended their
waiver of Nextel Argentina's compliance with such covenants until the earlier of
May 28, 1999 or the date the Argentina Amendments become effective.

       As a result of the Argentina Amendments, Nextel International has entered
into a new capital subscription agreement that will require additional equity to
be contributed to Nextel Argentina. Concurrently with the execution of the
Argentina Amendments, MCC agreed to provide up to $50.0 million in loans to 
Nextel Argentina as incremental loans under the Argentina Credit Facility for
purchases of qualifying iDEN equipment and related services (the "Argentina
Incremental Facility Loans").

       MOTOROLA INTERNATIONAL FINANCING -- On February 4, 1999, Nextel
International and Motorola Credit Corporation ("MCC") entered into definitive
agreements providing for $225.0 million in secured financings. Additional
information concerning this and the related financing arrangements between
Nextel International and Motorola is included in the Nextel International 1998
Form 10-K and in Nextel International's Form 10-Q for the quarter ended March
31, 1999 (the "Nextel International Form 10-Q").

NOTE 4 -- CONTINGENCIES.

       See Part II, Item 1. "Legal Proceedings" for a discussion of certain
lawsuits and other legal matters.

NOTE 5 -- MANDATORILY REDEEMABLE PREFERRED STOCK.

<TABLE>
<CAPTION>
                                                                                      MARCH 31,             DECEMBER 31,
                                                                                        1999                    1998
                                                                                     ----------              ----------
                                                                                           (dollars in thousands)
<S>                                                                                  <C>                     <C>
SERIES D EXCHANGEABLE PREFERRED STOCK MANDATORILY REDEEMABLE 2009, 13%
   cumulative annual dividend; 604,501 and 585,473 shares issued; 604,488
   and 585,460 shares outstanding, stated at liquidation value                       $  620,860                 601,317

SERIES E EXCHANGEABLE PREFERRED STOCK MANDATORILY REDEEMABLE 2010, 11.125%
   cumulative annual dividend; 837,990 and 815,314 shares issued; 837,975
   and 815,299 shares outstanding, stated at liquidation value                          849,643                 826,637

ZERO COUPON CONVERTIBLE PREFERRED STOCK MANDATORILY REDEEMABLE 2013, no
   dividend; convertible into 5,761,764 shares of Class A Common Stock;
   591,308 shares issued and outstanding; stated at fair value when issued
   plus accretion of liquidation preference at 9.25% compounded quarterly               153,784                 150,298
                                                                                     ----------              ----------
                                                                                     $1,624,287              $1,578,252
                                                                                     ==========              ==========
</TABLE>


                                       10
<PAGE>   11

NOTE 6 -- SEGMENT REPORTING.

       The Company operates in two business segments: domestic and
international. These reportable segments are strategic business units that are
in different phases of development and are managed and financed separately based
on the fundamental differences in their operations. Nextel evaluates performance
of these segments based on segment earnings (loss), which is calculated as
earnings (loss) before interest, taxes, depreciation and amortization and other
non-recurring charges.

<TABLE>
<CAPTION>
                                                       DOMESTIC       INTERNATIONAL        CONSOLIDATED
                                                       --------       -------------        ------------
                                                                  (dollars in thousands)                
<S>                                                  <C>              <C>                  <C>         
FOR THE THREE MONTHS ENDED MARCH 31, 1999                                                               
- -----------------------------------------                                                               
    Digital service revenues                         $   624,625      $    15,517          $   640,142  
    Other revenues                                        19,319            4,344               23,663  
                                                     -----------      -----------          -----------
        Total operating revenues                         643,944           19,861              663,805  
    Segment earnings (loss)                               81,810          (45,990)              35,820  
    Depreciation and amortization expenses               205,026           23,414              228,440  
    Interest expense                                    (159,365)         (38,694)            (198,059) 
    Interest income                                        1,889            1,538                3,427  
    Other, net                                            (3,584)         (58,443)             (62,027) 
    Loss before income tax benefit                      (284,276)        (165,003)            (449,279) 
                                                                                                        
AS OF MARCH 31, 1999                                                                                    
- --------------------                                                                                    
    Long-lived assets, net                           $ 8,849,666      $   907,295          $ 9,756,961  
    Identifiable assets                                9,978,459        1,443,127           11,421,586  
    Capital expenditures                                 382,042           50,702              432,744  
                                                                                                        
FOR THE THREE MONTHS ENDED MARCH 31, 1998                                                               
- -----------------------------------------                                                               
    Digital service revenues                         $   287,593      $        --          $   287,593  
    Other revenues                                        30,983            8,558               39,541  
                                                     -----------      -----------          -----------  
        Total operating revenues                         318,576            8,558              327,134  
    Segment loss                                         (94,843)         (10,190)            (105,033) 
    Depreciation and amortization expenses               175,303            9,192              184,495  
    Interest expense                                    (125,912)         (19,468)            (145,380) 
    Interest income                                       10,029            4,324               14,353  
    Other, net                                            (1,029)           1,082                   53  
    Loss before income tax benefit                      (387,058)         (33,444)            (420,502) 
                                                                                                        
AS OF MARCH 31, 1998                                                                                    
- --------------------                                                                                    
    Long-lived assets, net                           $ 7,591,141      $   859,151          $ 8,450,292  
    Identifiable assets                                9,381,302        1,626,258           11,007,560  
    Capital expenditures                                 500,193           90,931              591,124  
</TABLE>

NOTE 7 -- SUBSEQUENT EVENTS.

       TOWERS TRANSACTION -- On April 20, 1999, Nextel and some of its
subsidiaries and SpectraSite Holdings, Inc. ("SpectraSite") and some of its
subsidiaries consummated agreements pursuant to which Nextel transferred
specified telecommunications towers and related assets to SpectraSite, which
were then leased back to Nextel. Under the terms of the agreement, Nextel
received $560.0 million in cash and about an 18% ownership interest in
SpectraSite. In connection with the transaction, the parties entered into an
exclusive agreement for SpectraSite to construct additional towers in the United
States to support expansion of the digital networks of Nextel and Nextel


                                       11
<PAGE>   12

Partners. Due to Nextel's continuing involvement related to the ownership
interest in SpectraSite, the sale-leaseback transaction will be accounted for by
the financing method.

       MOTOROLA WARRANT EXERCISES -- On April 30, 1999, Motorola exercised
warrants to purchase 2,895,384 shares of Nextel Class A Common Stock ("Nextel
Common Stock"). Nextel received about $43.3 million in cash proceeds from
Motorola as a result of such warrant exercises.

       MICROSOFT TRANSACTION -- On May 7, 1999, Nextel and Microsoft Corporation
("Microsoft") entered into an investment agreement in which Microsoft has
committed to purchase, and Nextel has committed to sell, about 16.7 million
shares of Nextel Common Stock for an aggregate cash investment of about $600
million, representing a per share price of $36.00. The investment agreement and
related agreements also establish certain transfer restrictions that apply to
the Nextel shares purchased by Microsoft, include an investor standstill
provision and provide certain registration rights relating to the Nextel shares.
The transactions contemplated by the investment agreement are subject to
customary closing conditions. In connection with this transaction, Nextel and
Microsoft also entered into agreements under which Microsoft is to provide
certain portal services and related assistance in connection with Nextel's
previously announced Nextel Online(SM) service offering.

       Nextel plans to use the proceeds from this investment to advance the
deployment of its wireless Internet services, to expand its domestic and
international digital mobile network service offerings and for other corporate
purposes.


                                       12
<PAGE>   13

ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
        OF OPERATIONS.

A. OVERVIEW.

       The following discussion of the condensed consolidated financial
condition and results of operations of Nextel for the three months ended March
31, 1999 and 1998, and significant factors that could affect Nextel's
prospective financial condition, should be read in conjunction with the 1998
Form 10-K and the Nextel International 1998 Form 10-K.

       Nextel provides a wide array of digital and analog wireless
communications services throughout the United States. Nextel offers a
differentiated, integrated package of digital wireless communications services
under the Nextel brand name, primarily to business users. Nextel's Digital
Mobile Network constitutes one of the largest integrated wireless communications
systems utilizing a single transmission technology in the United States. Nextel
and Nextel Partners have significant specialized mobile radio spectrum holdings
in and around every major business and population center in the country,
including all of the top 50 metropolitan statistical areas in the United States.

       As of March 31, 1999:

- -      Nextel provided service to about 3,152,900 digital subscriber units in
       the United States, adding about 415,000 net subscriber units during the
       quarter; and

- -      Nextel and Nextel Partners digital networks were operational in areas in
       and around 92 of the top 100 metropolitan statistical areas in the United
       States.

B. FIRST QUARTER TRANSACTIONS AND DEVELOPMENTS

       1. NEXTEL PARTNERS TRANSACTION. On January 29, 1999, Nextel, Nextel
Partners and certain other parties, including Motorola and Eagle River, an
affiliate of Mr. McCaw, entered into definitive agreements relating to the
capitalization, governance, financing and operation of Nextel Partners. Nextel
Partners plans to construct and operate a digital wireless system utilizing iDEN
technology in thirty-nine mid-size and smaller markets in the United States,
with a combined population of about 33 million people. Under these agreements,
Nextel Partners will offer its customers the same basic package of digital
wireless communications services as Nextel, under the Nextel brand name, and
customers of Nextel and Nextel Partners will be allowed to roam between the
Nextel and Nextel Partners systems without incurring any roaming charges. In
connection with this transaction, Nextel sold assets and is in the process of
transferring certain FCC licenses to Nextel Partners. In exchange, Nextel
Partners issued to Nextel equity representing about a 29% voting interest in
Nextel Partners and having an agreed value of $131.1 million and paid Nextel
about $132.4 million in cash (which remains subject to post-closing adjustments)
related to the assets sold and the reimbursement of costs and net operating
expenses. The definitive agreements also establish certain circumstances in
which Nextel will have the right or the obligation to purchase the remaining
equity interests in Nextel Partners at specified prices.

       2. MOTOROLA INTERNATIONAL FINANCING. On February 4, 1999, Nextel
International and MCC entered into definitive agreements providing for $225.0
million in secured financing. Additional information concerning this and the
related financing arrangements between Nextel International and Motorola is
included in the Nextel International 1998 Form 10-K.

       3. BRAZIL CURRENCY DEVALUATION. During the first quarter of 1999, there
was significant fluctuation in the value of the Brazilian real relative to the
United States dollar due to the Brazilian real's recent devaluation. As a result
of such devaluation, Nextel International recorded a pre-tax charge (net of
minority interests) of about $45.1


                                       13
<PAGE>   14

million related to foreign currency transaction losses. This amount has been
calculated based on the outstanding amount of United States dollar-denominated
debt of Nextel International's Brazilian subsidiaries, the average exchange rate
of the Brazilian real during the first quarter and Nextel International's
percentage ownership interest in its Brazilian subsidiaries at the end of the
first quarter. Additionally, Nextel recorded a negative cumulative translation
adjustment on its balance sheet of approximately $136.1 million based on the
exchange rate as of February 28, 1999 which is reflected as an adjustment to the
cumulative translation adjustment account within stockholder's deficit.

       4. SALE OF NEXTBAND INTEREST. On March 31, 1999, Nextel entered into
definitive agreements with NEXTLINK providing for the sale of Nextel's interest
in NEXTBAND to NEXTLINK. Nextel and NEXTLINK formed NEXTBAND to bid in an
auction of LMDS spectrum licenses by the FCC. In the auction, NEXTBAND was
awarded LMDS licenses in 42 markets for a bid price of about $134 million.
Nextel paid its full one-half share of this bid price in 1998. The purchase
price for Nextel's interest in NEXTBAND will be $137.7 million, of which a
minimum of $68.85 million will be paid in cash. NEXTLINK may elect to pay the
balance of the purchase price in either shares of NEXTLINK common stock or in
cash. The transaction is subject to receipt of necessary regulatory approvals
and to customary closing conditions. Nextel expects that the transaction will be
completed during the second quarter of 1999.

C. POST FIRST QUARTER TRANSACTIONS AND DEVELOPMENTS

       1. TOWERS TRANSACTION. On April 20, 1999, Nextel and some of its
subsidiaries and SpectraSite and some of its subsidiaries consummated agreements
pursuant to which Nextel transferred specified telecommunications towers and
related assets to SpectraSite which were then leased back to Nextel. Under the
terms of the agreement, Nextel received $560.0 million in cash and about an 18%
ownership interest in SpectraSite. In connection with the transaction, the
parties entered into an exclusive agreement for SpectraSite to construct
additional towers in the United States to support expansion of the digital
networks of Nextel and Nextel Partners. Due to Nextel's continuing involvement
related to the ownership interest in SpectraSite, the sale-leaseback transaction
will be accounted for by the financing method.

       2. MOTOROLA WARRANT EXERCISES. On April 30, 1999, Motorola exercised
warrants to purchase 2,895,384 shares of Nextel Common Stock. Nextel received
about $43.3 million in cash proceeds from Motorola as a result of such warrant
exercises.

       3. MICROSOFT TRANSACTION. On May 7, 1999, Nextel and Microsoft entered
into an investment agreement in which Microsoft has committed to purchase, and
Nextel has committed to sell, about 16.7 million shares of Nextel Common Stock
for an aggregate cash investment of about $600 million, representing a per share
price of $36.00. The investment agreement and related agreements also establish
certain transfer restrictions that apply to the Nextel shares purchased by
Microsoft, include an investor standstill provision and provide certain
registration rights relating to the Nextel shares. The transactions contemplated
by the investment agreement are subject to customary closing conditions. In
connection with this transaction, Nextel and Microsoft also entered into
agreements under which Microsoft is to provide certain portal services and
related assistance in connection with Nextel's previously announced Nextel
Online(SM) service offering.

       4. INTERNATIONAL FINANCING -- In March 1999 Nextel Argentina notified the
administrative agent under the Argentina Credit Facility of its anticipated
noncompliance with certain financial covenants under such facility applicable in
the first quarter of 1999. Nextel Argentina received a waiver from the lenders
under such facility with regard to such covenants for the first quarter of 1999.
On May 12, 1999, Nextel Argentina and the lenders under the Argentina Credit
Facility agreed to the Argentina Amendments which modify the covenants in
question for future quarters. The effectiveness of the Argentina Amendments is
subject to customary conditions, which are expected to be satisfied prior to
May 28, 1999. The lenders have extended their waiver of Nextel Argentina's
compliance with such covenants until the earlier of May 28, 1999 or the date the
Argentina Amendments become effective. As a result of the Argentina Amendments,
Nextel International has entered into a new capital subscription agreement that
will require additional equity to be contributed to Nextel Argentina.


                                       14
<PAGE>   15

Concurrently with the execution of the Argentina Amendments, MCC agreed to
provide the Argentina Incremental Facility Loans.

       5. INVESTMENT IN NEXTEL INTERNATIONAL. On May 13, 1999, Nextel
International issued 1,000 shares of its Series A Preferred Stock to a wholly
owned subsidiary of Nextel. Nextel International received $100.0 million in
proceeds from the issuance of such shares of Series A Preferred Stock.

D. RESULTS OF OPERATIONS

       The following discussion compares the consolidated financial condition
and results of operations for Nextel for the three months ended March 31, 1999
and 1998, and significant factors that could affect Nextel's prospective
financial condition and results of operations.

       1. OPERATING REVENUES

<TABLE>
<CAPTION>
                                                                                                      CHANGE FROM
                                                         % OF                          % OF          PREVIOUS YEAR
                                        MARCH 31,      OPERATING      MARCH 31,      OPERATING      -----------------
                                          1999         REVENUES         1998         REVENUES       DOLLARS   PERCENT
                                        ---------      --------       ---------      --------       -------   -------
                                                                       (dollars in millions)
<S>                                      <C>            <C>            <C>            <C>           <C>       <C>
       Operating revenues                $663.8         100.0%         $327.1         100.0%         $336.7   102.9%
          Domestic                        643.9          97.0%          318.6          97.4%          325.3   102.1%
          International                    19.9           3.0%            8.5           2.6%           11.4   134.1%
</TABLE>

       Operating revenues include service revenues, which consist primarily of
charges for airtime usage and monthly network access fees from providing mobile
wireless services. In 1999, domestic operating revenues increased principally as
a result of a 92.1% increase in end-of-period domestic digital subscriber units
in service from about 1,641,500 at March 31, 1998 to about 3,152,900 at March
31, 1999. The increase in operating revenues reflects the increased number of
subscriber units in service in both new and existing markets and an increase in
minutes of use, producing an increase in the average monthly revenue per digital
subscriber unit from about $66 during the first quarter of 1998 to about $71
during the first quarter of 1999. The growth in digital subscriber units in
service is the result of a number of factors, principally Nextel's increased
sales force and marketing staff, increased distribution channels, expanded
network capacity, increased consumer awareness and acceptance of wireless
communications and pricing plans targeted at particular market segments.
International operating revenues increased primarily as a result of increased
digital subscriber units in service in Brazil, Argentina and Mexico, due to the
launch of digital services in major markets in those countries subsequent to the
first quarter of 1998.

       The average churn rate for the domestic Digital Mobile Network operations
has increased from about 1.7% per month during the first quarter of 1998 to
about 2.0% per month during the first quarter of 1999.

       2. COST OF REVENUES

<TABLE>
<CAPTION>
                                                                                                      CHANGE FROM
                                                         % OF                          % OF          PREVIOUS YEAR
                                        MARCH 31,      OPERATING      MARCH 31,      OPERATING      -----------------
                                          1999         REVENUES         1998         REVENUES       DOLLARS   PERCENT
                                        ---------      --------       ---------      --------       -------   -------
                                                                       (dollars in millions)
<S>                                      <C>            <C>            <C>            <C>           <C>       <C>
       Cost of revenues                  $162.3         24.5%          $102.4         31.3%         $59.9      58.5%
          Domestic                        153.3         23.1%            98.8         30.2%          54.5      55.2%
          International                     9.0          1.4%             3.6          1.1%           5.4     150.0%
</TABLE>

       Cost of revenues consists primarily of network operating costs and
interconnection fees assessed by local exchange carriers. In the first quarter
of 1999, domestic cost of revenues increased from the first quarter of 1998


                                       15
<PAGE>   16

primarily as a result of a 66.7% increase in the number of switches placed in
service and a 44.2% increase in cell sites and related equipment activated by
Nextel, as well as increases in airtime usage and digital subscriber units in
service. Additionally, the increase in cost of international revenues is
attributable primarily to the increase in cell site operations and maintenance
related expenses incurred due to the commercial launch of international digital
services subsequent to the first quarter of 1998. Cost of revenues as a
percentage of revenues decreased as a result of the economies of scale achieved
as a result of increases in system usage and digital subscriber units placed in
service during the first quarter of 1999 and the latter part of 1998.

       3. SELLING, GENERAL AND ADMINISTRATIVE EXPENSES

<TABLE>
<CAPTION>
                                                                                                      CHANGE FROM
                                                         % OF                          % OF          PREVIOUS YEAR
                                        MARCH 31,      OPERATING      MARCH 31,      OPERATING      -----------------
                                          1999         REVENUES         1998         REVENUES       DOLLARS   PERCENT
                                        ---------      --------       ---------      --------       -------   -------
                                                                       (dollars in millions)
<S>                                      <C>            <C>            <C>            <C>           <C>       <C>
       Selling, general and
          administrative expenses        $465.6         70.1%          $329.7         100.8%        $135.9     41.2%
          Selling and marketing           283.7         42.7%           203.4          62.2%          80.3     39.5%
          General and administrative      181.9         27.4%           126.3          38.6%          55.6     44.0%
</TABLE>

       The increase in selling, general and administrative expenses for the
first quarter of 1999 from the comparable 1998 period consisted of an increase
in domestic expenses of $94.2 million and an increase in international expenses
of $41.7 million.

       The increase in selling and marketing expenses in the first quarter of
1999 from the comparable 1998 period consists primarily of increased costs
incurred in connection with higher consolidated sales of digital subscriber
units including:

- -      $28.0 million of increased losses generated from consolidated sales of
       digital subscriber units and related accessories (including a loss of
       $6.1 million relating to international digital subscriber unit sales);

- -      $23.5 million of increased domestic dealer commissions and residuals
       earned by indirect distributors as a result of increased unit sales
       through, and increased reliance on, indirect distribution channels;

- -      $18.0 million of increased advertising and marketing expenses from
       international operations as a result of the launch of digital service in
       Sao Paulo and Buenos Aires in the second quarter of 1998 and Rio de
       Janeiro and Mexico City in the third quarter 1998; and

- -      $10.8 million of increased advertising, telemarketing and other selling
       and marketing expenses attributable to the expanded marketing campaigns
       in effect during 1998 and the first quarter of 1999.

       Nextel offers digital subscriber units and related accessories at
competitive prices, which are below cost as an incentive for new customers to
subscribe to its services and for certain existing customers to remain
subscribers. Nextel includes the loss generated from the sale of digital
subscriber units and related accessories in selling and marketing expenses, as
the loss primarily represents marketing costs. The loss on digital subscriber
unit and related accessory sales for the first quarter of 1999 increased 47.4%
to $87.1 million, compared to $59.1 million during the first quarter of 1998 and
decreased as a percentage of operating revenue to 13.1% for the first quarter of
1999 from 18.1% for the first quarter of 1998. The increase in the loss on
digital subscriber unit and related accessory sales compares favorably to the
92.1% increase in end-of-period domestic digital subscriber units in service due
to decreases in subsidies and discounts on a per unit basis offered to customers
purchasing digital subscriber units and related accessories. Competitive market
pressures are expected to result in a continued trend of negative gross margins
on digital subscriber unit and related accessory sales as Nextel anticipates
that it will


                                       16
<PAGE>   17

continue to offer customers subsidies and/or discounts in connection with the
sale and installation of digital subscriber units and related accessories.

       In the first quarter of 1999, the increase in general and administrative
expenses from the comparable 1998 period is primarily attributable to the
following:

- -      $20.0 million of increased domestic expenses related to billing and
       collection activities as a result of a larger customer base; 

- -      $18.0 million of increased domestic personnel, facilities and general
       corporate expenses primarily reflecting increased staffing for
       back-office activities; and

- -      $17.6 million of increased international general and administrative
       expenses, incurred to support the growth in its international markets,
       and bad debt expenses.

During the first quarter of 1999, Nextel continued to maintain its comprehensive
and aggressive credit review and collection program with respect to its domestic
operations. As a result of these initiatives, consolidated bad debt expense as a
percentage of total revenues, including both operating revenues and digital
equipment revenues classified within selling and marketing expense, decreased
from 5.4% for the first quarter of 1998 to 4.5% for the first quarter of 1999.

       Selling and general administrative expenses are expected to increase both
domestically and internationally as a result of a number of factors, including
but not limited to the items listed below, but are expected to decline as a
percentage of revenues as the revenue base increases.

- -      continuing aggressive marketing campaigns;

- -      increasing sales and marketing, customer care and back-office support
       staffing; and

- -      increasing subsidies associated with the sale of additional digital
       subscriber units and related accessories.

       4. DEPRECIATION AND AMORTIZATION

<TABLE>
<CAPTION>
                                                                                                      CHANGE FROM
                                                         % OF                          % OF          PREVIOUS YEAR
                                        MARCH 31,      OPERATING      MARCH 31,      OPERATING      -----------------
                                          1999         REVENUES         1998         REVENUES       DOLLARS   PERCENT
                                        ---------      --------       ---------      --------       -------   -------
                                                                       (dollars in millions)
<S>                                      <C>            <C>            <C>            <C>            <C>      <C>
       Depreciation and
         amortization expense            $228.4         34.4%          $184.5         56.4%          $43.9     23.8%
          Depreciation                    175.6         26.5%           134.4         41.1%           41.2     30.7%
          Amortization                     52.8          7.9%            50.1         15.3%            2.7      5.4%
</TABLE>

       In the first quarter of 1999, depreciation expense increased from the
comparable 1998 period primarily due to the effect of activating additional
operational cell sites and switches in new and existing domestic and
international markets launched subsequent to the first quarter of 1998,
partially offset by decreases associated with the sale of certain switch assets
and the Nextel Partners transaction. System assets relating to the development
and expansion of the Digital Mobile Networks both domestically and
internationally, represent the largest portion of capital expenditures during
the period. Depreciation of such assets begins upon commencement of commercial
service in the relevant markets.


                                       17
<PAGE>   18

       5. INTEREST EXPENSE, INTEREST INCOME AND OTHER

<TABLE>
<CAPTION>
                                                                                                      CHANGE FROM
                                                         % OF                          % OF          PREVIOUS YEAR
                                        MARCH 31,      OPERATING      MARCH 31,      OPERATING      -----------------
                                          1999         REVENUES         1998         REVENUES       DOLLARS   PERCENT
                                        ---------      --------       ---------      --------       -------   -------
                                                                       (dollars in millions)
<S>                                      <C>              <C>          <C>             <C>           <C>      <C>
       Interest expense                  $198.1           29.8%        $145.4           44.5%        $ 52.7     36.2%
       Interest income                      3.4            0.5%          14.4            4.4%         (11.0)   (76.4%)
       Other (expense) income, net        (62.0)          (9.3%)          0.1            0.0%         (62.1)     NM
       Income tax benefit                   9.8            1.5%          33.6           10.3%         (23.8)   (70.8%)
       Loss attributable to
         common stockholders              485.5           73.1%         415.0          126.9%          70.5     17.0%
</TABLE>

       NM-Not Meaningful

       The increase in interest expense for the first quarter of 1999 from the
comparable 1998 period resulted from Nextel's and Nextel International's
issuance of senior redeemable notes during 1998, as well as a higher average
level of borrowings under Nextel's bank credit agreement and Nextel
International's bank and vendor credit facilities. The increase was partially
offset by a decrease in the weighted average interest rate on the total
outstanding debt which was a result of the refinancing of the domestic vendor
credit facility during the first quarter of 1998 and the retirement of a portion
of a series of senior redeemable discount notes during the second quarter of
1998.

       The decrease in interest income for 1999 from 1998 is primarily
attributable to income recognized in 1998 on the investment of the net proceeds
received from Nextel's sale of the Series E exchangeable preferred stock and the
issuance of the senior redeemable discount notes in the first quarter of 1998.

       Nextel recorded an income tax benefit of $9.8 million (an effective tax
rate of 2.2%) in 1999, compared to $33.6 million (an effective tax rate of 8.0%)
in 1998. The change in effective tax rate primarily resulted from a change in
the tax law which extended the net operating loss carryforward period from 15 to
20 years for losses generated in or after 1998. In certain circumstances,
Statement of Financial Accounting Standards No. 109, "Accounting for Income
Taxes," limits the recognition of income tax benefits for net operating losses
to the amount of deferred tax liabilities that are expected to reverse within
the statutory carryforward period. The financial statement limitation on the
recognition of income tax benefits for net operating losses will not have an
impact on Nextel's ability to utilize its net operating losses for income tax
purposes.

E. LIQUIDITY AND CAPITAL RESOURCES

       Nextel had net losses attributable to common stockholders of $485.5
million and $415.0 million for the three months ended March 31, 1999 and 1998,
respectively. The operating expenses associated with developing, enhancing and
operating the Digital Mobile Network have more than offset operating revenues,
and operating expenses, debt service obligations and anticipated capital
expenditures are expected to continue to offset operating revenues for the next
several years. Nextel has consistently used external sources of funds, primarily
from equity issuances and debt incurrences, to fund operations, capital
expenditures, acquisitions and other non-operating needs. For the next several
years, Nextel intends to use its existing cash and investments, continued
positive earnings before interest, taxes, depreciation and amortization from its
domestic operations and externally generated funds from debt and equity sources
(as discussed below) to cover future needs, including the design, implementation
and operation of its Digital Mobile Network both domestically and
internationally.


                                       18
<PAGE>   19

       CASH FLOWS

       Net cash provided by operating activities of $89.3 million for the three
months ended March 31, 1999 increased by $199.1 million compared to net cash
used in operating activities of $109.8 million for the three months ended March
31, 1998. The increase in net cash provided by operating activities consisted of
a domestic increase of $232.8 million partially offset by cash used in
international operations of $33.7 million. The improvement in the cash provided
by operating activities reflects increasing operating revenues and improved
domestic operating results coupled with strengthened cost controls.

       Capital expenditures to fund the continued expansion of the Digital
Mobile Network continue to represent the largest use of Company funds for
investing activities. Net cash used in investing activities for the three months
ended March 31, 1999 decreased $237.5 million as compared to the three months
ended March 31, 1998, primarily attributable to the $124.3 million decrease in
capital expenditures and the receipt of $132.4 million related to the sale of
assets to Nextel Partners and reimbursement of certain costs and operating
expenses by Nextel Partners. Cash payments for capital expenditures totaled
$477.8 million for the three months ended March 31, 1999 and $602.1 million for
the three months ended March 31, 1998, including $45.4 million and $87.3 million
in capital expenditures for international operations for the three months ended
March 31, 1999 and 1998, respectively. While domestic capital spending decreased
due to a number of factors, including improved management of infrastructure
inventory, this level of capital expenditures is not expected to be indicative
of future quarters in 1999, during which the rate of capital spending is
expected to increase. Also contributing to the decrease in cash used in
investing activities was a $71.8 million decrease in payments for acquisitions
and purchases of licenses and a decrease of $32.3 million in cash investments in
international subsidiaries, offset by a decrease of $123.3 million in net
proceeds from marketable securities transactions.

       Cash flows provided by financing activities decreased by $1,715.9 million
as compared to the three months ended March 31, 1998, primarily reflecting the
net proceeds received in the first quarter of 1998 from the issuance of debt
securities and mandatorily redeemable preferred stock. Net cash provided by
financing activities for the three months ended March 31, 1999 consisted
primarily of $183.8 million in net borrowings under Nextel's bank credit
agreement and Nextel International's bank and vendor credit facilities and $21.6
million in proceeds from common stock issuances and option exercises.

       Nextel had a working capital deficit of $385.7 million at March 31, 1999
compared to $129.5 million at December 31, 1998. During the first quarter of
1999, Nextel utilized available cash balances and financed its capital
expenditures with current liabilities (e.g. accounts payable) resulting in an
increase in the working capital deficit. Nextel International primarily
continues to finance international operations, capital expenditures and
acquisitions by incurring long-term debt.

F. FUTURE CAPITAL NEEDS AND RESOURCES

       Nextel anticipates that, for the foreseeable future, it will be utilizing
significant amounts of its available cash for:

       -      capital expenditures for the construction and enhancement of the
              Digital Mobile Network, both domestically and internationally;

       -      operating expenses relating both to the Digital Mobile Network and
              to its analog specialized mobile radio business;

       -      potential acquisitions including any negotiated acquisitions of
              spectrum from third parties and any future FCC auctions of
              spectrum;


                                       19
<PAGE>   20

       -      debt service requirements; and

       -      other general corporate expenditures.

Nextel anticipates that its cash utilization for capital expenditures and other
investing activities will continue to exceed its positive cash flows from
domestic operating activities throughout 1999 as it builds out, expands and
enhances its Digital Mobile Network in the United States.

       Nextel's bank credit agreement, as amended (the "Bank Credit Agreement"),
provides total potential secured financing capacity of $3.5 billion, of which
$3.295 billion in secured financing is currently available to Nextel, subject to
the satisfaction or waiver of applicable borrowing conditions. This facility
consists of a $1.5 billion revolving loan and $1.795 billion in term loans which
mature over a period from September 30, 2001 to March 31, 2007. At March 31,
1999, Nextel had drawn $2.194 billion of its available financing under the Bank
Credit Agreement.

       Amounts outstanding under the Bank Credit Agreement are secured by liens
on assets of certain of Nextel's domestic subsidiaries and bear interest payable
quarterly at an adjustable rate calculated based either on the prime rate or the
London Interbank Offered Rate ("LIBOR"). The maturity dates of the loans are
subject to acceleration if the aggregate principal amount of certain series of
Nextel's senior redeemable discount notes is not less than $1.0 billion by
specified dates. The availability of such financing is subject to Nextel's
satisfying certain requirements under the indentures governing its public notes
issued before 1997, which require Nextel to issue new equity for cash as a
condition to obtaining access to all amounts not constituting "permitted debt"
(as that term is defined in the applicable indentures). Based on the amount of
equity issuances, including issuances of preferred stock in 1997 and 1998, and
Nextel's outstanding debt at March 31, 1999, Nextel may access the full $3.295
billion currently available under the Bank Credit Agreement in compliance with
the debt incurrence covenants contained in those indentures.

       Based on its assessment of business activity and related net cash needs
through the end of 1999, Nextel anticipates that its cash on hand, the remaining
amounts available for borrowing under the Bank Credit Agreement, the cash
proceeds assumed to be received upon the exercise in 1999 of options held by
Digital Radio, L.L.C., the cash proceeds recently received upon Motorola's
exercises of warrants, the cash payment recently received upon completing the
sale of assets to Nextel Partners, the cash proceeds recently received upon
closing the towers sale transaction with SpectraSite, the cash proceeds expected
to be received upon completion of the investment transaction with Microsoft and
the net cash expected to be generated by domestic operations through the end of
1999, collectively, will provide more than sufficient funds to finance Nextel's
domestic operations, meet its domestic debt service obligations and fund its
domestic capital expenditures, all at levels Nextel currently anticipates would
be consistent with maintaining growth within an assumed range of an annual rate
of 1.4 to 1.6 million net domestic digital subscriber unit additions during
1999. See, "I. Nextel's Forward Looking Statements Are Subject to a Variety of
Factors that Could Cause Actual Results to Differ Materially From Current
Beliefs."

       Nextel may require additional financing to fund further deployment,
expansion and enhancement of its Digital Mobile Network in the United States
after 1999. Nextel also may require additional financing to pursue activities
related to new business opportunities (including commercial activities involving
its deployment of data transmission services), additional spectrum acquisitions
(including any negotiated acquisitions of spectrum from third parties and
spectrum auctions by the FCC) and other potential transactions or investments
not a part of its current domestic mobile wireless communications businesses.
Finally, the above funding requirements and estimates relate only to Nextel's
domestic business operations and opportunities, and do not reflect any of the
separate funding needs of Nextel International. See also the discussion under
the caption "Liquidity and Capital Resources" in the Nextel International Form
10-Q.


                                       20
<PAGE>   21

       The availability of borrowings pursuant to the Bank Credit Agreement is
subject to certain conditions, and Nextel cannot provide assurance that such
conditions will be met. Moreover, Nextel cannot provide assurances that it will
receive funding from its other existing or assumed sources, such as the exercise
of outstanding options to purchase Nextel's common stock. The instruments
relating to Nextel's financing arrangements and preferred stock contain
provisions that operate to limit the amount of borrowings that may be incurred
by Nextel. The terms of the Bank Credit Agreement also require Nextel and its
restricted subsidiaries at specified times to maintain compliance with certain
operating and financial covenants or ratios, including certain covenants and
ratios specifically related to leverage, which become more stringent over time.
In addition, Nextel's capital needs, and its ability to adequately address those
needs through debt or equity funding sources, are subject to a variety of
factors that cannot presently be predicted with certainty, for example, the
commercial success of Nextel's Digital Mobile Network, the amount and timing of
Nextel's capital expenditures and operating losses, the availability and
volatility of the equity and debt markets, the market price of its common stock
and consummation of specific pending transactions. See, "I. Nextel's Forward
Looking Statements Are Subject to a Variety of Factors that Could Cause Actual
Results to Differ Materially From Current Beliefs."

       Nextel has had and may in the future have discussions with third parties
regarding potential equity investments and debt financing arrangements to
satisfy actual or anticipated financing needs. At present, other than the
existing equity or debt financing arrangements that have been consummated and/or
are disclosed herein, Nextel has no legally binding commitments or
understandings with any third parties to obtain any material amount of equity or
debt financing. Under the terms of the agreements between Nextel and Motorola
pursuant to which Nextel acquired substantially all of Motorola's domestic 800
MHz specialized mobile radio licenses in 1995, Nextel has agreed, under certain
circumstances, not to grant superior governance rights to any third-party
investor without Motorola's consent which may make securing equity investments
more difficult. In this connection, the recent investment commitment by
Microsoft did not involve granting any superior governance rights. The ability
of Nextel to incur additional indebtedness including, in certain circumstances,
indebtedness incurred under the Bank Credit Agreement, is and will be limited by
the terms of Nextel's financing agreements and the terms of some of Nextel's
preferred stock.

G. NEXTEL INTERNATIONAL CAPITAL NEEDS

       As of March 31, 1999, approximately $104.8 million had been borrowed
under an equipment financing facility provided through MCC (the "International
Motorola Financing Facility") (including all $100.0 million in loans to
reimburse Nextel International for payments made to Motorola by Nextel
International and certain of its operating subsidiaries and affiliates after
January 1, 1997 for the purchase of iDEN equipment and related services or for
the benefit of such subsidiaries and affiliates (the "Reimbursement Loans") and
approximately $120.2 million remained available for future borrowings under such
facility. Additionally, as of March 31, 1999, all of the $14.7 million available
under the existing financing facility between MCC and Infocom Communications
Network, Inc. ("Nextel Philippines") (the "Philippine Motorola Financing") had
been borrowed, approximately $103.8 million had been borrowed under the vendor
financing agreement between McCaw International (Brazil), Ltd. ("Nextel Brazil")
and MCC (the "Brazil Motorola Financing"), with the remaining $21.2 million
available for future borrowings, and all of the $100.0 million available under
the Argentina Credit Facility had been borrowed. Nextel International plans to
refinance the amounts owed by Nextel Philippines under the Philippines Motorola
Financing with proceeds of loans under the International Motorola Financing
Facility in the second quarter of 1999. The availability of borrowings under
each of the International Motorola Financing Facility and the Brazil Motorola
Financing is subject to the satisfaction or waiver of certain applicable
borrowing conditions under each facility. See, "I. Nextel's Forward Looking
Statements Are Subject to a Variety of Factors that Could Cause Actual Results
to Differ Materially From Current Beliefs."

       In March 1999 Nextel Argentina notified the administrative agent under
the Argentina Credit Facility of its anticipated noncompliance with certain
financial covenants under such facility applicable in the first quarter of 1999.
Nextel Argentina received a waiver from the lenders under such facility with
regard to such covenants for


                                       21
<PAGE>   22

the first quarter of 1999. On May 12, 1999, Nextel Argentina and the lenders
under the Argentina Credit Facility agreed to the Argentina Amendments. The
effectiveness of the Argentina Amendments is subject to customary conditions,
which are expected to be satisfied prior to May 28, 1999. The lenders have
extended their waiver of Nextel Argentina's compliance with such covenants until
the earlier of May 28, 1999 or date the Argentina Amendments become
effective. As a result of the Argentina Amendments, Nextel International has 
entered into a new capital subscription agreement that will require additional
equity to be contributed to Nextel Argentina. Concurrently with the execution
of the Argentina Amendments, MCC agreed to provide the Argentina Incremental
Facility Loans.

       On May 13, 1999, Nextel International issued 1,000 shares of its Series A
Preferred Stock to a wholly owned subsidiary of Nextel. Nextel International
received $100.0 million in proceeds from the issuance of such shares of Series A
Preferred Stock. Additionally, in May 1999, Nextel International entered into a
commitment with MCC pursuant to which MCC agreed to provide up to $56.6 million
in incremental term loans to Nextel International (the "International Motorola
Incremental Facility").

       Based on Nextel International's current estimate of its funding
requirements for 1999, Nextel International believes that it will have adequate
funding to continue its operations through the end of 1999. Such assessment is
based on Nextel International's assumed utilization of its available cash and
cash equivalents and borrowings expected to be available under the International
Motorola Financing Facility, the International Motorola Incremental Facility,
the Brazil Motorola Financing and the Argentina Incremental Facility Loans to
meet its assumed cash needs (including reasonably foreseeable capital
expenditures, funding of operating losses and any debt service obligations)
during such period. There can be no assurance that such resources will be
sufficient to fund Nextel International's obligations through the end of 1999.
Subsequent to 1999 Nextel International will require significant additional
capital to fund the construction and expansion of its Digital Mobile Networks
and will need to rely on external sources of financing to fund its operating
losses and for other general corporate purposes until its operations generate
positive cash flows. See, "-- Nextel's Forward-Looking Statements Are Subject to
a Variety of Factors that Could Cause Actual Results to Differ Materially From
Current Beliefs" and the Nextel International 1998 Form 10-K and the Nextel
International Form 10-Q.

H. YEAR 2000 READINESS

       As is the case with most other businesses using computers in their
operations, Nextel is in the process of evaluating and addressing the Year 2000
readiness of its computer systems. Such Year 2000 readiness efforts are designed
to identify, address and resolve issues that may be created by computer programs
being written using two digits rather than four to define the applicable year.
Any of Nextel's computer programs that have date-sensitive software may
recognize a date using "00" as the year 1900 rather than the year 2000. This
could result in a system failure or miscalculations that result in disruptions
of operations, including, among other things, a temporary inability to process
transactions, send invoices or engage in similar normal business activities.

       1. STATE OF READINESS

       Nextel has had a program in place since February 1998 to address Year
2000 readiness issues in its critical business areas related to products,
networks, information management systems, non-information systems with embedded
technology, suppliers and customers. Nextel has taken and will continue to take
actions designed to advance its progress toward becoming Year 2000 ready by the
end of the third quarter of 1999. Nextel's Year 2000 readiness goal focuses on
the ability of Nextel to perform its business functions and to process
information in an unambiguous manner under various date conditions.

       Nextel's ability to reach its Year 2000 readiness goal depends and will
continue to depend on the efforts of significant third-party vendors, suppliers,
subcontractors and business partners. Some of these significant third parties
are not yet Year 2000 ready, although many of them have provided Nextel with
detailed action plans and timetables for achieving Year 2000 readiness. Nextel
monitors the progress of these third parties towards Year


                                       22
<PAGE>   23

2000 readiness on a regular basis. Nextel regularly contacts and attempts to
obtain from these third parties relevant details and schedules concerning their
contemplated development of Year 2000 ready applications for Nextel's
utilization in its domestic and international operations and systems.
Specifically, Nextel relies on services and products offered by the following
significant third parties:

       -      Motorola, for Nextel's system infrastructure and subscriber
              handset units;

       -      International Telecommunications Data Systems, Inc., as the
              software vendor for Nextel's domestic order entry and provisioning
              systems, as well as Nextel's domestic billing information systems;

       -      LHS Group, Inc. as the software vendor for Nextel International's
              billing information systems;

       -      Vantive Corporation, which provides information systems used in
              Nextel's customer care function and provides order entry systems
              for Nextel International;

       -      Oracle Corporation, which provides Nextel with information
              systems, development tools and database management used to support
              its human resources function and financial systems; and

       -      Hewlett-Packard, Inc., which supplies computer hardware, for
              example, monitors and peripherals, and UNIX operating systems.

Nextel has identified five phases that assist in defining the status of progress
toward Year 2000 readiness. The five phases are:

       -      Awareness -- locating, listing and prioritizing specific
              technology used in Nextel's operations that is potentially subject
              to Year 2000 readiness related challenges;

       -      Assessment -- determining the level of risk of Year 2000 readiness
              challenges that exist on Nextel's systems through inquiry,
              research and testing;

       -      Renovation -- determining and resolving Year 2000 readiness
              related challenges identified in previous phases through
              replacement, upgrade or repair and planning for the scheduled
              implementation of the selected Year 2000 ready resolution;

       -      Validation -- testing, monitoring, certification and verification
              of the correct manipulation of dates and date related data on
              Information Technology ("IT") and non-IT systems, including those
              of material third parties; and

       -      Implementation -- installing and integrating the application of
              Year 2000 ready resolutions by replacement, upgrade or repair of
              non-IT and IT systems, including those of material third parties.

       As of April 15, 1999, with respect to its non-IT devices and/or systems
containing embedded circuitry, Nextel is, primarily, in the assessment phase.
Additionally, with respect to its IT systems that are critical to Nextel's
business operations and issues relating to material third parties, Nextel is in
various phases noted as follows:

       -      International Telecommunications Data Systems, Inc. informed
              Nextel that software that operates Nextel's domestic order entry
              and provisioning system has successfully completed the renovation
              phase and is scheduled for delivery to Nextel for user acceptance
              testing and implementation. This vendor has also informed Nextel
              that the software used for domestic billing capabilities has
              successfully completed the assessment and renovation phases and is
              currently in unit and system integration testing phases;

       -      Motorola informed Nextel that the subscriber unit models i390 and
              i1000 are Year 2000 ready, and all other subscriber units are Year
              2000 ready with the exception of the short message service feature
              on all other phones, which is not expected to cause a material
              disruption in Nextel's service offerings. With regard to the
              Digital Mobile Network, Motorola has indicated that the following
              system infrastructure components are Year 2000 ready:


                                       23
<PAGE>   24

                     -      critical call and data processing systems applicable
                            to a significant portion of the Digital Mobile
                            Network have passed Year 2000 readiness testing;

                     -      Nortel switches and CISCO routers have passed Year
                            2000 readiness testing appropriate for Nextel's use;
                            and

                     -      Voice mail system components have passed Year 2000
                            readiness testing.

       -      Oracle has advised Nextel that the software that supports Nextel's
              human resources function and financial systems is Year 2000 ready
              in conjunction with recommended upgrades. Nextel is in the process
              of establishing the environment to test and apply these upgrades;

       -      Vantive provided information to Nextel that it has tested and
              certified the Year 2000 readiness of the software that will be
              used to develop Year 2000 ready customer care systems for Nextel
              International's operations;

       -      LHS informed Nextel that the software currently in use in Nextel
              International's systems that supports the billing processes is
              Year 2000 ready in conjunction with recommended upgrades. Nextel
              International is currently conducting in-house Year 2000 readiness
              testing and its implementation plans include making the
              appropriate upgrades recommended by LHS; and

       -      Motorola Communications Israel Ltd., which provides the
              provisioning systems for Nextel International, certified that its
              software is Year 2000 ready.

       To ensure the continued progress and success in managing all of Nextel's
systems Year 2000 readiness requirements, a special steering committee that
includes members of senior management responsible for Nextel's information
technology and network systems was formed to oversee this effort. Internal
employees, as well as outside contractors, staff Nextel's Year 2000 readiness
program. Members include employees across functional and divisional departments
who are responsible for assisting in the identification, assessment and
remediation of Year 2000 readiness challenges. In addition, the representatives
from some of the material third parties identified above participate in this
project.

       2. THE COSTS TO ADDRESS NEXTEL'S YEAR 2000 READINESS CHALLENGES

       Based on information developed to date as a result of Nextel's assessment
efforts, Nextel believes that the costs of modifying, upgrading or replacing its
systems and equipment will not have a material effect on Nextel's liquidity, its
financial condition or results of operations. Nextel currently estimates that
its domestic and international expenditures in connection with these efforts
during 1999 will not exceed $45 million. To date, Nextel has not deferred any
specific projects, goals or objectives relating to its domestic and
international operations as a result of implementing its Year 2000 readiness
efforts.

       3. THE RISKS OF NEXTEL'S YEAR 2000 READINESS CHALLENGES

       In light of the progress made to date, Nextel does not anticipate delays
or postponements in finalizing and implementing Year 2000 readiness solutions by
the end of the third quarter of 1999. Until Nextel's renovation and validation
phases are substantially complete, however, Nextel cannot fully and accurately
estimate any uncertainty in timely resolving its Year 2000 readiness challenges
or in finalizing and implementing related Year 2000 readiness resolutions.
Additionally, any failure by third parties which have a material relationship
with Nextel to achieve full Year 2000 readiness may be a potential risk if such
failure were to adversely impact the ability of such third parties to provide
any products or services that are critical to Nextel's operations. Finally,
where Nextel cannot validate or certify that technology provided by material
third parties is fully Year 2000 ready, Nextel is seeking to obtain assurances
from these material third parties that their systems are or will be Year 2000
ready no later than the end of the third quarter of 1999. If these material
third parties fail to


                                       24
<PAGE>   25

appropriately address their own Year 2000 readiness challenges, there could be a
materially adverse effect on Nextel's financial condition and results of
operations. These risks include, but are not limited to:

       -      inability of subscribers to make or receive phone calls;

       -      inability of sites, switches and other interfaces to accurately
              record call details of subscriber phone calls; and

       -      inability of billing systems to accurately report and bill
              subscribers for phone usage.

       Other risks associated with the inability of Nextel or material third
parties to develop and deploy Year 2000 ready solutions in a timely and
successful manner may involve or result in conditions that could preclude Nextel
from:

       -      deploying an alternative technology that is Year 2000 ready;

       -      implementing commercial launches in new markets or introducing new
              services in existing markets;

       -      pursuing additional business opportunities; and

       -      obtaining equity or debt financing.

       Significantly, Nextel cannot independently assess the impact of Year 2000
readiness challenges, activities and programs involving operators of public
switched telecommunications networks or other service providers, for example,
electric utilities. Nextel therefore must rely on public switched
telecommunications networks and utility providers' estimates of their own Year
2000 readiness challenges and the status of their related compliance activities
and programs in Nextel's own Year 2000 readiness assessment process. Because
Nextel's systems are interconnected with public switched telecommunications
networks and are dependent upon the systems of other service providers, any
disruption of operations in the computer programs of such public switched
telecommunications networks or service providers would likely have an impact on
Nextel's systems. Moreover, there can be no assurance that such impact will not
have a materially adverse effect on Nextel's operations.

       Finally, in assessing its Year 2000 readiness exposure associated with
its international operations, Nextel has considered that certain operators of
public switched telecommunications networks or other service providers and
operations located in foreign countries may not be at the same level of
awareness or assessment of the Year 2000 readiness challenges and remedial
measures as their United States counterparts. These factors, to the extent
present with respect to Nextel's international operations, may result in delays
in identifying Year 2000 readiness challenges and a lag in implementing
remediation efforts as compared with Nextel's domestic operations. In the event
Nextel's international affiliates and their own material third parties fail to
timely address their Year 2000 readiness challenges, Nextel's international
operations could experience material disruptions after December 31, 1999.

       4. NEXTEL'S CONTINGENCY PLANS

       Nextel has not completed all systems and software testing in its critical
systems, nor has it been advised of the completion of such activities by all
third-party providers of critical products and services. As a result, Nextel has
not fully assessed its exposure from potential Year 2000 nonreadiness. Nextel is
preparing guidelines for addressing Year 2000 readiness contingency plans for
external and internal systems should it be determined that contingency plans are
necessary. Following testing of Nextel's critical systems, Nextel will evaluate
and possibly create alternative plans designed to address various potential
business interruptions that may occur as a result of non-readiness.
Additionally, since contingency plans may also be provided by third parties,
Nextel will assess the development of appropriate alternative solutions
presented by any relevant third party to determine its effectiveness and likely
impact on Nextel's Year 2000 readiness risk profile.


                                       25
<PAGE>   26

I. NEXTEL'S FORWARD LOOKING STATEMENTS ARE SUBJECT TO A VARIETY OF FACTORS THAT
   COULD CAUSE ACTUAL RESULTS TO DIFFER MATERIALLY FROM CURRENT BELIEFS.

       "SAFE HARBOR" STATEMENTS UNDER THE PRIVATE SECURITIES LITIGATION REFORM
ACT OF 1995. A number of the matters and subject areas discussed in the
foregoing "Management's Discussion and Analysis of Financial Condition and
Results of Operations" (including the related discussions referred to above that
are also included in the 1998 Form 10-K and in the Nextel International Form
10-K) that are not historical or current facts deal with potential future
circumstances and developments. The discussion of such matters and subject areas
is qualified by the inherent risks and uncertainties surrounding future
expectations generally, and also may materially differ from Nextel's actual
future experience involving any one or more of such matters and subject areas.
Nextel has attempted to identify, in context and in the 1998 Form 10-K, some of
the factors that it currently believes may cause actual future experience and
results to differ from it's current expectations regarding the relevant matter
or subject area. The operation and results of Nextel's wireless communications
business also may be subject to the effect of other risks and uncertainties in
addition to the relevant qualifying factors identified or referred to elsewhere
in the foregoing "Management's Discussion and Analysis of Financial Condition
and Results of Operations" section and in the 1998 Form 10-K, including, but not
limited to, general economic conditions in the geographic areas and occupational
market segments that Nextel is targeting for its Digital Mobile Network service,
the availability of adequate quantities of system infrastructure and subscriber
equipment and components to meet Nextel's service deployment and marketing plans
and customer demand, the success of efforts to improve and satisfactorily
address any issues relating to Nextel's Digital Mobile Network performance, the
continued successful performance of the iDEN technology being deployed in
Nextel's various market areas, the ability to achieve market penetration and
average subscriber revenue levels sufficient to provide financial viability to
Nextel's Digital Mobile Network business, Nextel's ability to timely and
successfully accomplish required scale-up of its billing, collection, customer
care and similar back-room operations to keep pace with customer growth and
increased system usage rates and growth in levels of accounts receivables being
generated by the Digital Mobile Network customer base, access to sufficient debt
or equity capital to meet Nextel's operating and financial needs, the quality
and price of similar or comparable wireless communications services offered or
to be offered by Nextel's competitors, including providers of cellular and
personal communications services, the ability to successfully develop or obtain
from third parties and implement year 2000 readiness solutions in systems that
are critical to its business operations, future legislation or regulatory
actions relating to specialized mobile radio services, other wireless
communications services or telecommunications generally and other risks and
uncertainties described from time to time in Nextel's reports filed with the
Commission including the 1998 Form 10-K and, with specific reference to risk
factors relating to international operations, in Nextel International's reports
filed with the Commission including the Nextel International 1998 Form 10-K.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK.

       Nextel uses mandatorily redeemable preferred stock, senior redeemable
notes, and bank and vendor credit facilities to finance its operations. These
on-balance sheet financial instruments, to the extent they provide for variable
rates of interest, expose Nextel to interest rate risk. Nextel's primary
interest rate risk exposure results from changes in LIBOR or the prime rate
which are used to determine the interest rates that are applicable to borrowings
under Nextel's bank and vendor credit agreements. Nextel uses off-balance
sheet derivative financial instruments, including interest rate swap and collar
agreements, to partially hedge interest rate exposure associated with on-balance
sheet financial instruments. All of Nextel's derivative financial instrument
transactions are entered into for non-trading purposes. The terms and
characteristics of the derivative financial instruments are matched with the
existing on-balance sheet financial instrument and do not constitute speculative
or leveraged positions independent of these exposures.


                                       26
<PAGE>   27

       Nextel International's revenues are denominated in foreign currencies
while a significant portion of its operations are financed through senior
redeemable discount notes and bank and vendor credit facilities which are
denominated in United States dollars. Accordingly, fluctuations in exchange
rates relative to the United States dollar, primarily those related to the
Brazilian real, Mexican peso and Argentinean peso, expose Nextel to foreign
currency exchange rate risk. In the near term, Nextel's foreign currency
exchange rate exposure associated with the repayment of Nextel International's
debt obligations is limited since the terms of the senior redeemable discount
notes and bank and vendor credit facilities do not require significant principal
payments until after 1999. Accordingly, as of March 31, 1999, Nextel
International has not established any hedge or risk reduction strategies related
to its foreign currency exchange rate exposure.

       Nextel International holds an available-for-sale investment in the common
stock of Clearnet Communications, Inc. ("Clearnet"), a publicly traded company
that had a fair value of $110.6 million as of March 31, 1999. In accordance with
Statement of Financial Standards No. 115, "Accounting for Certain Investments in
Debt and Equity Securities," this investment is recorded at its market value in
Nextel's financial statements. Negative fluctuations in Clearnet's stock price
expose Nextel to equity price risk. A 10% decline in the stock price would
result in a $11.1 million decrease in the fair value of Nextel's investment in
Clearnet.

       The information below summarizes Nextel's sensitivity to market risks
associated with fluctuations in interest rates and foreign currency exchange
rates as of March 31, 1999 in United States dollars. To the extent that Nextel's
financial instruments expose Nextel to interest rate and foreign currency
exchange risk, these instruments are presented within each market risk category
in the table below. The table presents principal cash flows and related interest
rates by year of maturity for Nextel's mandatorily redeemable preferred stock,
senior redeemable notes, and bank and vendor credit facilities in effect at
March 31, 1999 and, in the case of the mandatorily redeemable preferred stock
and senior redeemable notes, excludes the potential exercise of the relevant
redemption features. The cash flows related to the variable portion of interest
rate swaps are determined by dealers using valuation models that estimate the
future level of interest rates, with consideration of the applicable yield curve
as of March 31, 1999. For interest rate swaps and collars, the table presents
notional amounts and the related reference interest rates by year of maturity.
Fair values included herein have been determined based on: (i) quoted market
prices for mandatorily redeemable preferred stock and senior redeemable notes;
(ii) the carrying value for the bank and vendor credit facilities at March 31,
1999 as interest rates are reset periodically; and (iii) estimates obtained from
dealers to settle interest rate swap and collar agreements. Descriptions of
Nextel's mandatorily redeemable preferred stock, senior redeemable notes, bank
and vendor credit facilities, and interest rate risk management agreements are
contained in Notes 8, 9 and 12 to the consolidated financial statements
contained in the 1998 Form 10-K and should be read in conjunction with the
following table. The increase in the fair values of Nextel's mandatorily
redeemable preferred stock, long-term debt, and interest rate swaps and collars
as compared to December 31, 1998 reflect the changes in the applicable market
conditions.


                                       27
<PAGE>   28

<TABLE>
<CAPTION>
                                                                    YEAR OF MATURITY
                                                   --------------------------------------------------
                                                        1999              2000              2001
                                                   --------------    --------------    --------------
                                                              (U.S. DOLLARS IN THOUSANDS)
<S>                                                <C>               <C>               <C>
I.      INTEREST RATE SENSITIVITY
MANDATORILY REDEEMABLE PREFERRED STOCK AND LONG-TERM DEBT:
    Fixed Rate                                           --                   --                --
    Average Interest Rate                                --                   --                --
    Variable Rate                                        --              $30,751           $96,956
    Average Interest Rate                                --                 9.4%             8.9 %


INTEREST RATE SWAPS:
    Variable to Fixed                                    --                   --           200,000
    Average Pay Rate                                     --                   --              5.4%
    Average Receive Rate                                 --                   --              5.3%
    Variable to Variable                                 --               50,000           100,000
    Average Pay Rate                                     --                 5.1%              5.3%
    Average Receive Rate                                 --                 5.2%              5.7%

INTEREST RATE COLLARS:
    Collars                                              --                   --                --
    Average Cap                                          --                   --                --
    Average Floor                                        --                   --                --

II.     FOREIGN EXCHANGE RATE SENSITIVITY
LONG-TERM DEBT:
    Fixed Rate                                           --                   --                --
    Average Interest Rate                                --                   --                --
    Variable Rate                                        --               30,751            66,956
    Average Interest Rate                                --                 9.4%              9.7%

<CAPTION>
                                                                     YEAR OF MATURITY
                                                   -----------------------------------------------
                                                        2002              2003          THEREAFTER
                                                   --------------    --------------     ----------
                                                               (U.S. DOLLARS IN THOUSANDS)
<S>                                                <C>               <C>                <C>
I.      INTEREST RATE SENSITIVITY
MANDATORILY REDEEMABLE PREFERRED STOCK AND LONG-TERM DEBT:
    Fixed Rate                                              --          $35,811         $8,833,596
    Average Interest Rate                                   --            11.5%              10.9%
    Variable Rate                                     $140,282          220,282          2,014,305
    Average Interest Rate                                 8.6%             8.2%               7.6%


INTEREST RATE SWAPS:
    Variable to Fixed                                       --          100,000            570,000
    Average Pay Rate                                        --             5.5%               8.1%
    Average Receive Rate                                    --             5.0%               5.1%
    Variable to Variable                                    --          400,000                 --
    Average Pay Rate                                        --             4.9%                 --
    Average Receive Rate                                    --             5.0%                 --

INTEREST RATE COLLARS:
    Collars                                                 --          200,000                 --
    Average Cap                                             --             6.7%                 --
    Average Floor                                           --             4.5%                 --

II.     FOREIGN EXCHANGE RATE SENSITIVITY
LONG-TERM DEBT:
    Fixed Rate                                              --               --          1,681,463
    Average Interest Rate                                   --               --              12.6%
    Variable Rate                                       77,332          107,332             26,205
    Average Interest Rate                                 9.7%             9.4%              10.3%

<CAPTION>


                                                     TOTAL     FAIR VALUE
                                                   ----------  ----------

<S>                                                <C>         <C>
I.      INTEREST RATE SENSITIVITY
MANDATORILY REDEEMABLE PREFERRED STOCK AND LONG-TERM DEBT:
    Fixed Rate                                     $8,869,407  $7,202,439
    Average Interest Rate                               10.9%
    Variable Rate                                   2,502,576   2,502,576
    Average Interest Rate                                7.9%


INTEREST RATE SWAPS:
    Variable to Fixed                                 870,000     (85,563)
    Average Pay Rate                                     7.2%
    Average Receive Rate                                 5.1%
    Variable to Variable                              550,000       1,945
    Average Pay Rate                                     5.0%
    Average Receive Rate                                 5.1%

INTEREST RATE COLLARS:
    Collars                                           200,000      (2,121)
    Average Cap                                          6.7%
    Average Floor                                        4.5%

II.     FOREIGN EXCHANGE RATE SENSITIVITY
LONG-TERM DEBT:
    Fixed Rate                                      1,681,463     928,578
    Average Interest Rate                               12.6%
    Variable Rate                                     308,576     308,576
    Average Interest Rate                                9.6%
</TABLE>


                                       28
<PAGE>   29

                                     PART II

ITEM 1. LEGAL PROCEEDINGS.

       The Company is involved in certain legal proceedings that are described
in the 1998 Form 10-K. During the three months ended March 31, 1999, there were
no material changes in the status of or developments regarding those legal
proceedings.

ITEM 2. CHANGES IN SECURITIES.

       (a) Inapplicable

       (b) Inapplicable

       (c) On January 29, 1999, in connection with the formation of Nextel
       Partners, Nextel entered into certain agreements pursuant to which the
       holders of Nextel Partners common stock have the right, under specified
       circumstances, to require a subsidiary of Nextel to purchase such shares,
       and the Nextel subsidiary has the right, under specified circumstances,
       to require the Nextel Partners stockholders to sell their Nextel Partners
       stock to the subsidiary. In either event, the Nextel subsidiary has the
       right, at its option, to pay for the Nextel Partners stock with shares of
       Nextel Common Stock (the "Contingent Right"). In that event, the Nextel
       Common Stock would be valued based on its market price at that time, and
       the Nextel Partners stock would be valued, depending on the circumstances
       of the purchase and sale, at a formula price or at its fair market value
       at that time. These rights, together with the other assets that Nextel
       contributed, were exchanged for stock in Nextel Partners and other rights
       described in Item 2. "Management's Discussion and Analysis of Financial
       Condition and Results of Operations - B. First Quarter Transactions and
       Developments."

              This transaction was effected pursuant to the exemption of Section
       4(2) of the Securities Act of 1933 in reliance upon the representations
       made by the purchasers of the Nextel Partners securities.

ITEM 6. EXHIBITS AND REPORTS ON FORM 8-K.

       (a) List of Exhibits.

<TABLE>
<CAPTION>
EXHIBIT NUMBER   EXHIBIT DESCRIPTION
- --------------   -------------------
<S>              <C>
4.1              Amendment No. 3 to Credit Agreement dated as of March 23, 1999 between
                 Nextel Communications, Inc., Nextel Finance Company and the other
                 Restricted Companies, Toronto Dominion (Texas), Inc. in its capacity as
                 Administrative Agent and The Chase Manhattan Bank in its capacity as
                 Collateral Agent (filed herein as Exhibit 4.1 to the March 31, 1999 Form
                 10-Q and incorporated herein by reference).

10.1             Letter Amendment to Employment Agreement dated as of February 26, 1999,
                 between Daniel Akerson and Nextel (filed as Exhibit 10.15.3 to the 1998
                 Form 10-K filed on March 30, 1999 and incorporated herein by reference).

10.2             Non-Negotiable Unsecured Promissory Note, dated March 10, 1999, issued by
                 Daniel Akerson to a subsidiary of Nextel (filed as Exhibit 10.15.4 to the
                 1998 Form 10-K filed on March 30, 1999 and incorporated herein by
                 reference).
</TABLE>


                                       29
<PAGE>   30

<TABLE>
<S>           <C>
10.3             Joint Venture Agreement by and among Nextel Partners, Inc., Nextel
                 Partners Operating Corp., and Nextel WIP Corp., dated as of January 29,
                 1999 (filed as Exhibit 10.1 to the Current Report on Form 8-K dated and
                 filed on February 24, 1999 (the "February 24 8-K") and incorporated
                 herein by reference).

10.4             Shareholders' Agreement among Nextel Partners, Inc., and the Shareholders
                 named therein, dated as of January 29, 1999 (filed as Exhibit 10.2 to the
                 February 24 8-K and incorporated herein by reference).

10.5             Agreement Specifying Obligations of, and Limiting Liability and Recourse
                 to, Nextel, dated as of January 29, 1999 (filed as Exhibit 10.3 to the
                 February 24 8-K and incorporated herein by reference).

10.6             NEXTBAND Interests Purchase Agreement, dated as of March 31, 1999, by and
                 between Nextel Spectrum Acquisition Corp. and NEXTLINK Communications,
                 Inc. (including the form of Registration Rights Agreement attached as
                 Exhibit A thereto) (filed as Exhibit 10.1 to the Current Report on Form
                 8-K dated and filed on April 1, 1999 and incorporated herein by
                 reference).

27**             Financial Data Schedule.

                 ----------------
              ** Submitted only with the electronic filing of this document with the Commission
                 pursuant to Regulation S-T under the Securities Act.

  (b) Reports on Form 8-K.

       (i)    Current Report on Form 8-K dated and filed on February 24, 1999
              with the Commission reporting under Item 5 the Nextel Partners
              transaction and the towers sale transaction with SpectraSite, Inc.
</TABLE>


                                       30
<PAGE>   31

                                    SIGNATURE

       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 thereunto duly authorized.

                                             NEXTEL COMMUNICATIONS, INC.

                                        By:      /s/WILLIAM G. ARENDT
                                            -----------------------------------
Date:  May 17, 1999                                  William G. Arendt
                                               Vice President and Controller
                                               (Principal Accounting Officer)


<PAGE>   32

                                  EXHIBIT INDEX

<TABLE>
<CAPTION>
EXHIBIT NUMBER      EXHIBIT DESCRIPTION
- --------------      -------------------
<S>              <C>
      4.1           Amendment No. 3 to Credit Agreement dated as of March 23, 1999
                    between Nextel Communications, Inc., Nextel Finance Company the
                    other Restricted Companies, Toronto Dominion (Texas), Inc. in its
                    capacity as Administrative Agent and The Chase Manhattan Bank in
                    its capacity as Collateral Agent (filed herein as Exhibit 4.1 to
                    the March 31, 1999 Form 10-Q and incorporated herein by
                    reference).

     10.1           Letter Amendment to Employment Agreement dated as of February 26,
                    1999, between Daniel Akerson and Nextel (filed as Exhibit 10.15.3
                    to the 1998 Form 10-K filed on March 30, 1999 and incorporated
                    herein by reference).

     10.2           Non-Negotiable Unsecured Promissory Note, dated March 10, 1999,
                    issued by Daniel Akerson to a subsidiary of Nextel (filed as
                    Exhibit 10.15.4 to the 1998 Form 10-K filed on March 30, 1999 and
                    incorporated herein by reference).

     10.3           Joint Venture Agreement by and among Nextel Partners, Inc., Nextel
                    Partners Operating Corp., and Nextel WIP Corp., dated as of
                    January 29, 1999 (filed as Exhibit 10.1 to the Current Report on
                    Form 8-K dated and filed on February 24, 1999 (the "February 24
                    8-K") and incorporated herein by reference).

     10.4           Shareholders' Agreement among Nextel Partners, Inc., and the
                    Shareholders named therein, dated as of January 29, 1999 (filed as
                    Exhibit 10.2 to the February 24 8-K and incorporated herein by
                    reference).

     10.5           Agreement Specifying Obligations of, and Limiting Liability and
                    Recourse to, Nextel, dated as of January 29, 1999 (filed as
                    Exhibit 10.3 to the February 24 8-K and incorporated herein by
                    reference).

     10.6           NEXTBAND Interests Purchase Agreement, dated as of March 31, 1999,
                    by and between Nextel Spectrum Acquisition Corp. and NEXTLINK
                    Communications, Inc. (including the form of Registration Rights
                    Agreement attached as Exhibit A thereto) (filed as Exhibit 10.1 to
                    the Current Report on Form 8-K dated and filed on April 1, 1999
                    and incorporated herein by reference).

     27**           Financial Data Schedule.

                    ----------------
                 ** Submitted only with the electronic filing of this document with the
                    Commission pursuant to Regulation S-T under the Securities Act.
</TABLE>


<PAGE>   1

                       AMENDMENT NO. 3 TO CREDIT AGREEMENT

       AMENDMENT NO. 3 TO CREDIT AGREEMENT dated as of March 23, 1999 between
NEXTEL COMMUNICATIONS, INC. ("NCI"); NEXTEL FINANCE COMPANY (the "Borrower") and
the other Restricted Companies listed on the signature pages hereto under the
caption "RESTRICTED COMPANIES" (individually, a "Restricted Company" and,
collectively, the "Restricted Companies"); TORONTO DOMINION (TEXAS) INC., in its
capacity as Administrative Agent (in such capacity, the "Administrative Agent")
pursuant to authority granted by the Required Lenders pursuant to Section
10.02(b) of the Credit Agreement (as defined below); and THE CHASE MANHATTAN
BANK, in its capacity as Collateral Agent (in such capacity, the "Collateral
Agent").

       NCI, the Restricted Companies, certain lenders, the Administrative Agent,
and the Collateral Agent, are parties to a Credit Agreement dated as of March
12, 1998 (as modified and supplemented and in effect from time to time, the
"Credit Agreement"), providing, subject to the terms and conditions thereof, for
extensions of credit (by means of loans and letters of credit) to be made by the
Lenders to the Borrower in an aggregate original principal or face amount not
exceeding $3,000,000,000 (which has been heretofore increased to $3,295,000,000
and which, in the circumstances contemplated by Section 7.01(e) thereof, may be
further increased to $3,500,000,000). NCI, the Restricted Companies, the
Administrative Agent (pursuant to authority granted by, and having obtained all
necessary consents of, the Required Lenders) and the Collateral Agent wish now
to consent to certain transactions to be undertaken by the Restricted Companies
and to amend the Credit Agreement in certain other respects, and accordingly,
the parties hereto hereby agree as follows:

       Section 1. Definitions. Except as otherwise defined in this Amendment No.
3, terms defined in the Credit Agreement are used herein as defined therein.

       Section 2. Consent. NCI and certain of the Restricted Companies
identified therein as "Transferring Subsidiaries" ("Transferring Subsidiaries")
have entered into an Agreement and Plan of Merger dated as of February 10, 1999
as amended by an Amendment No. 1 thereto dated April ___, 1999 (as so amended,
the "Tower Merger Agreement") with Tower Parent Corp., a newly formed Delaware
corporation and wholly owned direct Subsidiary of NCI that is an "Unrestricted
Subsidiary" under the Public Note Indentures ("TPC"), Tower Merger Vehicle, Inc.
a newly formed Delaware corporation and wholly owned direct Subsidiary of TPC
("Merger Sub"), Tower Asset Sub, Inc., a newly formed Delaware corporation and
wholly owned direct Subsidiary of Merger Sub ("Tower Sub"), SpectraSite
Holdings, Inc., a Delaware corporation ("Tower Aggregator"), SpectraSite
Communications, Inc., a Delaware corporation and wholly owned direct Subsidiary
of Tower Aggregator ("SCI"), and SHI Merger Sub, Inc., a newly formed Delaware
corporation and wholly owned direct Subsidiary of SCI ("SHI Merger Sub").
Pursuant to the Tower Merger Agreement it is contemplated, inter alia, that the
following transactions will be effected (in the order indicated below):


                      TPC Guarantee and Security Agreement

<PAGE>   2
                                      -2-


              (a) the Transferring Subsidiaries will transfer to TPC, in the
       manner contemplated in Section 2.1(a) of the Tower Merger Agreement, the
       "Tower Assets" under and as defined in said Section 2.1(a) (subject to
       the exclusions described in Section 2.1(b) of the Tower Merger
       Agreement), in exchange for Promissory Notes (the "TPC Notes") of TPC in
       an aggregate principal amount of not less than the sum of $525,000,000
       and the "Additional Tower Payment" under and as defined in the Tower
       Merger Agreement, payable to the respective Transferring Subsidiaries;

              (b) TPC will transfer to Tower Sub, in the manner contemplated in
       Section 2.1(a) of the Tower Merger Agreement, the "Tower Assets", in
       exchange for a Promissory Note (the "Tower Sub Note") of Tower Sub in an
       aggregate principal amount equal to the sum of $455,000,000 and the
       "Additional Tower Payment" under and as defined in the Tower Merger
       Agreement, payable to TPC;

              (c) SHI Merger Sub will merge with and into Merger Sub, in the
       manner contemplated in Section 3.1 and 3.2 of the Tower Merger Agreement,
       with Merger Sub being the continuing and surviving corporation; in such
       merger, (i) all of the shares of Merger Sub Common Stock (there being no
       other shares of any class of capital stock of Merger Sub outstanding)
       will be converted into 14,000,000 shares of Tower Aggregator Series C
       Preferred Stock, representing 23.3% of the authorized and outstanding
       shares of Tower Aggregator Series C Preferred Stock (having an
       approximate value of $70,000,000 and representing approximately 17% of
       the total equity capital of Tower Aggregator), and (ii) all of the shares
       of SHI Merger Sub Common Stock (there being no other shares of any class
       of capital stock of Merger Sub outstanding) will be converted into shares
       of Merger Sub Common Stock;

              (d) upon the consummation of the merger referred to in paragraph
       (c) above, as contemplated by Section 3.3 and 3.4 of the Tower Merger
       Agreement, Tower Aggregator (directly or indirectly through its
       Subsidiaries) will contribute to Tower Sub cash in an amount equal to the
       principal of the Tower Sub Note and Tower Sub will repay the Tower Sub
       Note in its entirety; and

              (e) in addition, upon consummation of the merger referred to in
       paragraph (c) above, (i) the Transferring Subsidiaries, Tower Sub and the
       Landlord Parties (as defined therein) will enter into a Master Site Lease
       Agreement in the form of Exhibit B to the Tower Merger Agreement (herein
       the "Master Site Lease Agreement") providing, inter alia, for the lease
       to the Transferring Subsidiaries of the Tower Assets referred to in
       paragraph (a) above and (ii) NCI, the Transferring Subsidiaries, TPC,
       Tower Aggregator and Tower Sub will enter into a Master Site Commitment
       Agreement (the "Master Site Commitment Agreement") providing, inter alia,
       for the construction by Tower Sub of additional tower sites in the United
       States for lease by the Transferring Subsidiaries (and, in that
       connection, SCI will pay to the Transferring Subsidiaries an amount equal
       to $105,000,000).

                      TPC Guarantee and Security Agreement

<PAGE>   3
                                      -3-


It is contemplated that payments to be made by TPC in respect of the TPC Notes
to the Transferring Subsidiaries may be made either in the form of cash or in
the form of the transfer by TPC of capital assets constructed or acquired by TPC
in accordance with Article VII(f) of the TPC Guarantee and Security Agreement.

       The Restricted Companies have requested that the Administrative Agent
consent to the transactions described above to the extent set forth below;
accordingly, subject to the satisfaction of the conditions precedent specified
in Section 5 below, but effective as of the date hereof, the Administrative
Agent (having previously obtained the authorization of, and all necessary
consents of, the Required Lenders under the Credit Agreement) hereby consents to
the following transactions (in each case for the purpose, and to the extent, of
the respective provisions of the Credit Agreement identified in the lettered
paragraphs below):

              (x) the transfer by the Transferring Subsidiaries to TPC, in the
       manner contemplated in paragraph (a) above of the "Tower Assets" therein
       referred to in exchange for TPC Notes, the consent in this paragraph (x)
       being granted for purposes of Sections 7.03, 7.04 and 7.06 of the Credit
       Agreement (and not to constitute utilization of any of the baskets in any
       of said Sections), so long as (i) the form of the TPC Notes is
       satisfactory in form and substance to the Collateral Agent and the TPC
       Notes, following the execution and delivery thereof, are delivered to the
       Collateral Agent in pledge pursuant to the Restricted Company Guarantee
       and Security Agreement, together with any necessary endorsement, and (ii)
       TPC shall take such action upon the consummation of the merger referred
       to in paragraph (c) above (including delivering the certificates
       representing the shares of Tower Aggregator Series C Preferred Stock and
       executing and delivering such Uniform Commercial Code financing
       statements) as the Collateral Agent shall reasonably request to perfect
       the security interest in all of the Collateral under and as defined in
       the TPC Guarantee and Security Agreement;

              (y) the execution, delivery and performance by the Transferring
       Subsidiaries of the Master Site Lease Agreement and the Master Site
       Commitment Agreement, including the right of Tower Sub to acquire future
       tower sites from the Transferring Subsidiaries, the consent in this
       paragraph (y) being granted for purposes of Sections 7.03, 7.04 and 7.06
       of the Credit Agreement (and not to constitute utilization of any of the
       baskets in any of said Sections) and, insofar as the right of Tower Sub
       to acquire future tower sites from the Transferring Subsidiaries might be
       deemed to constitute a "Lien", for purposes of Section 7.02 of the Credit
       Agreement; and

              (z) the repayment of the TPC Notes by TPC through the transfer to
       the Transferring Subsidiaries by TPC of capital assets acquired by TPC in
       accordance with Article VII(f) of the TPC Guarantee and Security
       Agreement, the consent in this paragraph (z) being granted for purposes
       of Section 7.04 of the Credit Agreement (and not to constitute
       utilization of any of the baskets in said Section).



                      TPC Guarantee and Security Agreement

<PAGE>   4
                                      -4-


              Section 3. Amendments. Subject to the satisfaction of the 
conditions precedent specified in Section 5 below, but effective as of the date
hereof, the Credit Agreement shall be amended as follows:

              3.01 References Generally. References in the Credit Agreement 
(including references to the Credit Agreement as amended hereby) to "this
Agreement" (and indirect references such as "hereunder", "hereby", "herein" and
"hereof") shall be deemed to be references to the Credit Agreement as amended
hereby.

              3.02 Definitions. Section 1.01 of the Credit Agreement is hereby 
amended by adding the following new definitions (to the extent not already
included in said Section 1.01) and inserting the same in the appropriate
alphabetical locations and amending the following definitions (to the extent
already included in said Section 1.01), as follows:

              "Amendment No. 3" means Amendment No. 3 to this Agreement.

              "Amendment No. 3 Effective Date" means the date on which the
       conditions to the effectiveness of the amendments provided for in
       Amendment No. 3 set forth in Section 5 thereof are satisfied (or waived
       in accordance with said Section 5).

              "Event of Default" means any "Event of Default" as defined in
       Article VIII and any TPC Event of Default (it being understood that a TPC
       Event of Default is not an Event of Default for purposes of Article
       VIII).

              "Security Documents" means the Restricted Company Guarantee and
       Security Agreement, the Mortgages, the TPC Guarantee and Security
       Agreement and all Uniform Commercial Code financing statements required
       by any of such instruments to be filed with respect to the security
       interests in personal property and fixtures created pursuant thereto.

              "Tower Merger Documents " means, collectively, the Tower Merger
       Agreement, the Master Site Commitment Agreement and the Master Site Lease
       Agreement (each as defined in Amendment No. 3), the Subordination,
       Non-Disturbance and Attornment Agreement (as defined in said Master Site
       Lease Agreement), the Security and Subordination Agreement and the
       Stockholders Agreement (each as defined in the Tower Merger Agreement)
       and the Intercreditor Agreement and Subordination Agreement to be
       executed and delivered between TPC and the Transferring Subsidiaries and
       certain other parties in connection with the consummation of the
       transactions contemplated by the Tower Merger Agreement.

              "TPC Event of Default" means the occurrence and continuance of any
       of the following events:

                     (a) TPC shall fail to pay any principal of or interest on
              any TPC Note when due (whether at stated maturity, by acceleration
              or otherwise);

                      TPC Guarantee and Security Agreement

<PAGE>   5
                                      -5-


                     (b) any representation or warranty made or deemed made by
              or on behalf of TPC in or in connection with the TPC Guarantee and
              Security Agreement or any amendment or modification thereof (or in
              any report, certificate, financial statement or other document
              furnished pursuant to or in connection with the TPC Guarantee and
              Security Agreement or any amendment or modification thereof) shall
              prove to have been incorrect when made or deemed made in any
              material respect;

                     (c) TPC shall fail to observe or perform any covenant,
              condition or agreement contained in Article VII of the TPC
              Guarantee and Security Agreement;

                     (d) TPC shall fail to observe or perform any covenant,
              condition or agreement contained in the TPC Guarantee and Security
              Agreement (other than those specified in clause (a), (b) or (c)
              above), and such failure shall continue unremedied for a period of
              thirty or more days after notice thereof from the Administrative
              Agent (given at the request of any Lender) to the Borrower;

                     (e) an involuntary proceeding shall be commenced or an
              involuntary petition shall be filed seeking (A) liquidation,
              reorganization or other relief in respect of TPC or its debts, or
              of a substantial part of its assets, under any Federal, state or
              foreign bankruptcy, insolvency, receivership or similar law now or
              hereafter in effect or (B) the appointment of a receiver, trustee,
              custodian, sequestrator, conservator or similar official for TPC
              or for a substantial part of its assets, and, in any such case,
              such proceeding or petition shall continue undismissed for 60 days
              or an order or decree approving or ordering any of the foregoing
              shall be entered;

                     (f) TPC shall (A) voluntarily commence any proceeding or
              file any petition seeking liquidation, reorganization or other
              relief under any Federal, state or foreign bankruptcy, insolvency,
              receivership or similar law now or hereafter in effect, (B)
              consent to the institution of, or fail to contest in a timely and
              appropriate manner, any proceeding or petition described in clause
              (e) above), (C) apply for or consent to the appointment of a
              receiver, trustee, custodian, sequestrator, conservator or similar
              official for TPC or for a substantial part of its assets, (D) file
              an answer admitting the material allegations of a petition filed
              against it in any such proceeding, (E) make a general assignment
              for the benefit of creditors or (F) take any action for the
              purpose of effecting any of the foregoing;

                     (g) TPC shall become unable, admit in writing or fail
              generally to pay its debts as they become due;

                     (h) one or more judgments for the payment of money in an
              aggregate amount in excess of $10,000,000 shall be rendered
              against TPC and the same 

                      TPC Guarantee and Security Agreement

<PAGE>   6
                                      -6-


              shall remain undischarged for a period of 30 consecutive days
              during which execution shall not be effectively stayed, or any
              action shall be legally taken by a judgment creditor to attach or
              levy upon any assets of TPC to enforce any such judgment; or

                     (i) a reasonable basis shall exist for the assertion
              against TPC, or any predecessor in interest of TPC or its
              Affiliates, of (or there shall have been asserted against TPC) any
              claims or liabilities, whether accrued, absolute or contingent,
              based on or arising from the generation, storage, transport,
              handling or disposal of Hazardous Materials or RF Emissions by TPC
              or any of its subsidiaries, Affiliates or predecessors that, in
              the judgment of the Required Lenders is reasonably likely to be
              determined adversely to TPC, and the amount thereof (either
              individually or in the aggregate) is reasonably likely to have a
              Material Adverse Effect (insofar as such amount is payable by TPC
              but after deducting any portion thereof that is reasonably
              expected to be paid by other creditworthy Persons jointly and
              severally liable therefor).

              "TPC Guarantee and Security Agreement" means a Guarantee and
       Security Agreement substantially in the form of Exhibit A to Amendment
       No. 3 between TPC and the Collateral Agent.

              "TPC Notes" has the meaning assigned to such term in Section 2 of
       Amendment No. 3.

              3.03 Accounting Terms, Etc. Section 1.04 of the Credit Agreement
is hereby amended by adding a new paragraph at the end thereof to read as
follows:

              "For purposes of determining compliance with Section 7.08, TPC
       shall be deemed treated as if it were a 'Restricted Company',
       notwithstanding that (as provided in the last sentence of Section
       6.11(a)) it may not be a 'Restricted Company' hereunder (in as much as it
       is an 'Unrestricted Subsidiary' under the Public Note Indentures); in
       addition, whenever delivering financial statements pursuant to Section
       6.01(b) and (c), and calculations pursuant to clauses (iii) of Section
       6.01(d), TPC shall similarly be treated as if it were a 'Restricted
       Company'. In addition, when determining 'Indebtedness' of TPC for
       purposes of said Sections, there shall be excluded any liability of TPC
       arising as a result of the application of EITF (Emerging Issues Task
       Force) Issue No. 97-10 (The Effect of Lessee Involvement in Asset
       Construction) and its interpretation and application of FASB Statement
       No. 66 (Accounting for Sales of Real Estate) and FASB Statement No. 98
       (Accounting for Leases: Sale-Leaseback Transactions Involving Real
       Estate; Sales-Type Leases of Real Estate; Definition of the Lease Term;
       and Initial Direct Costs of Direct Financing Leases) to the transactions
       contemplated by the Tower Merger Documents."

                      TPC Guarantee and Security Agreement

<PAGE>   7
                                      -7-


              3.04 Conditions Precedent (Representations and Warranties).
Section 5.02(a) of the Credit Agreement is hereby amended to read in its
entirety as follows:

              "(a) Representations and Warranties. The representations and
       warranties of each Credit Party set forth in this Agreement and the other
       Loan Documents, and of TPC in the TPC Guarantee and Security Agreement,
       shall be true and correct on and as of the date of such Borrowing, or (as
       applicable) the date of issuance, amendment, renewal or extension of such
       Letter of Credit, both before and after giving effect thereto and to the
       use of the proceeds thereof (or, if any such representation or warranty
       is expressly stated to have been made as of a specific date, such
       representation or warranty shall be true and correct as of such specific
       date)."

              3.05 Fundamental Changes. Section 7.03(f) of the Credit Agreement
is hereby amended to read in its entirety as follows:

              "(f) any Restricted Company may sell any of its assets for
       consideration in an amount not less than the fair market value of such
       assets, provided that (A) at least 85% of such consideration is in the
       form of cash, (B) the Net Cash Payments of such sale are applied to
       prepay the Loans and reduce the Commitments hereunder to the extent
       required by Section 2.09(b)(ii), (C) at the time of such sale and
       immediately after giving effect thereto no Default shall have occurred
       and be continuing and (D) the aggregate fair market value of all such
       assets sold by the Restricted Companies after March 8, 1999 shall not
       exceed $250,000,000."

              3.06 Financial Covenants. Section 7.08 of the Credit Agreement is
hereby amended to read in its entirety as follows:

              "SECTION 7.08. Certain Financial and Other Covenants.

              (a) Total Indebtedness to Cash Flow Ratio. NCI will not permit the
       Total Indebtedness to Cash Flow Ratio at any time during any period below
       to exceed the ratio set opposite such period below:

<TABLE>
<CAPTION>
                   Period                            Ratio
                   ------                            -----
              <S>                                  <C>
              From September 30, 1999
               through December 30, 1999           17.50 to 1

              From December 31, 1999
               through March 30, 2000              13.00 to 1
</TABLE>


                      TPC Guarantee and Security Agreement

<PAGE>   8
                                      -8-

<TABLE>
              <S>                                         <C>
              From March 31, 2000
               through June 29, 2000                      10.00 to 1

              From June 30, 2000
               through December 30, 2000                  7.50 to 1

              From December 31, 2000
               through June 29, 2001                      6.00 to 1

              From June 30, 2001
               and at all times thereafter                5.00 to 1
</TABLE>

              (b) Interest Coverage Ratio. NCI will not permit the Interest
       Coverage Ratio at any time during any period below to be less than the
       ratio set opposite such period below:

<TABLE>
<CAPTION>
                  Period                                   Ratio
                  ------                                   -----
              <S>                                         <C>
              From September 30, 1999
               through December 30, 1999                  1.10 to 1

              From December 31, 1999
               through June 29, 2000                      1.50 to 1

              From June 30, 2000
               and at all times thereafter                2.00 to 1
</TABLE>

              (c) Pro-Forma Debt Service Ratio. NCI will not permit the
       Pro-Forma Debt Service Ratio as at the last day of any fiscal quarter
       ending on or after March 31, 2001 to be less than 1.00 to 1.

              (d) Fixed Charges Ratio. NCI will not permit the Fixed Charges
       Ratio as at the last day of any fiscal quarter ending on or after June
       30, 2001 to be less than 1.00 to 1.

              (e) Secured Indebtedness to Cash Flow Ratio. The Restricted
       Companies will not permit the Secured Indebtedness to Cash Flow Ratio at
       any time during any period below to exceed the ratio set opposite such
       period below:

<TABLE>
<CAPTION>
                 Period                                     Ratio
                 ------                                     -----
              <S>                                         <C>
              From June 30, 1999
               through September 29, 1999                 10.00 to 1

              From September 30, 1999
               through December 30, 1999                  7.00 to 1
</TABLE>

                      TPC Guarantee and Security Agreement

<PAGE>   9
                                      -9-

<TABLE>
              <S>                                         <C>
              From December 31, 1999
               through March 30, 2000                     5.00 to 1

              From March 31, 2000
               through March 30, 2001                     4.00 to 1

              From March 31, 2001
               and at all times thereafter                3.00 to 1
</TABLE>

              (f) Secured Indebtedness to Revenue Ratio. The Restricted
       Companies will not permit the Secured Indebtedness to Revenue Ratio as at
       any date set forth below to exceed the ratio set forth opposite such date
       below:

<TABLE>
<CAPTION>
                Date                                  Ratio
                ----                                  -----
             <S>                                    <C>
             March 31, 1998                         2.50 to 1
             June 30, 1998                          2.25 to 1
             September 30, 1998, December 31,
             1998 and March 31, 1999                2.00 to 1
             June 30, 1999                          1.75 to 1
</TABLE>

              (g) Minimum Annualized Revenue. The Restricted Companies will not
       permit Annualized Revenue (adjusted as provided in the next sentence) as
       at any date below to be less than the amount set opposite such date
       below:

<TABLE>
<CAPTION>
                Date                                  Amount
                ----                                  ------
             <S>                                   <C>
             March 31, 1998                        $  900,000,000
             June 30, 1998                         $1,100,000,000
             September 30, 1998                    $1,300,000,000
             December 31, 1998                     $1,500,000,000
             March 31, 1999                        $1,750,000,000
             June 30, 1999                         $2,050,000,000
</TABLE>

       For purposes of this paragraph (g), Annualized Revenue as at any date
       shall be reduced, for each acquisition consummated prior to such date by
       any Restricted Company the Purchase Price for which exceeds $50,000,000
       (excluding, however, any such acquisition consummated prior to the date
       hereof), by an amount equal to the product of 4 multiplied by the revenue
       of the business, or attributable to the assets, so acquired for the
       fiscal quarter ending on, or most recently ended prior to, the date of
       such acquisition, provided that, if at the last day of any fiscal quarter
       of the Restricted Companies (the "current fiscal quarter") fewer than
       four complete fiscal quarters shall have elapsed following the date of
       such acquisition, such product shall be further multiplied by a fraction,
       the numerator of which is the number of days during the period commencing
       on the date of such

                      TPC Guarantee and Security Agreement

<PAGE>   10
                                      -10-

       acquisition to but excluding the last day of the current fiscal quarter
       and the denominator of which is 365.

              (h) Minimum Network Subscriber Units. The Restricted Companies
       will not permit the aggregate number of Network Subscriber Units
       (adjusted as provided in the next sentence) as at any date below to be
       less than the number set opposite such date below:

<TABLE>
<CAPTION>
                   Date                                 Number
                   ----                                 ------
                <S>                                  <C>
                March 31, 1998                       1,300,000
                June 30, 1998                        1,500,000
                September 30, 1998                   1,700,000
                December 31, 1998                    2,000,000
                March 31, 1999                       2,400,000
                June 30, 1999                        2,900,000
</TABLE>

       For purposes of this paragraph (h), Network Subscriber Units as at any
       date shall be reduced, for each acquisition consummated prior to such
       date by any Restricted Company the Purchase Price for which exceeds
       $50,000,000 (excluding, however, any such acquisition consummated prior
       to the date hereof), by the number or Network Subscriber Units of the
       business, or attributable to the assets, so acquired on the date on which
       such acquisition is consummated."

              3.07 Modifications to Certain Agreements. Section 7.10 of the
Credit Agreement is hereby amended by adding a new sentence at the end thereof 
to read as follows:

              "In addition, the Credit Parties will not consent to any
       modification, supplement or waiver of any of the provisions of the TPC
       Notes, or any of the provisions of any of the Tower Merger Documents,
       without, in each case, the prior consent of the Administrative Agent
       (with the approval of the Required Lenders), provided that no such
       consent shall be required with respect to any modification, supplement or
       waiver of any of the provisions of (i) any of the Tower Merger Documents
       to the extent relating to particular tower sites (or to particular groups
       of tower sites not aggregating more than 5% of the total tower sites),
       (ii) to the conditions for delivery or lease of newly-constructed tower
       sites pursuant to the Master Commitment Agreement or Master Lease
       Agreement, as applicable, or (iii) to any other modification of any of
       the Tower Merger Documents if the Administrative Agent and Collateral
       Agent have determined that such modification is not material with respect
       to the interests of the Lenders under this Agreement or any of the other
       Loan Documents."

                      TPC Guarantee and Security Agreement

<PAGE>   11
                                      -11-


              3.08 Security Document Event of Default. Paragraph (p) of Article
VIII of the Credit Agreement is hereby amended to read in its entirety as
follows:

              "(p) Any of the following shall occur: (i) the Liens created by
       the Security Documents shall at any time, with respect to any material
       portion of the property of the Restricted Companies and TPC (taken as a
       whole), not constitute valid and perfected Liens on the Collateral
       intended to be covered thereby (to the extent perfection by filing,
       registration, recordation or possession is required herein or therein) in
       favor of the Collateral Agent for the benefit of the Lenders hereunder,
       free and clear of all other Liens (other than Liens permitted under
       Section 7.02 or under the respective Security Documents); (ii) except for
       expiration in accordance with its terms, any of the Security Documents
       shall for whatever reason be terminated, or shall cease to be in full
       force and effect, with respect to any material portion of the property of
       the Restricted Companies and TPC (taken as a whole); or (iii) the
       enforceability of any of the Security Documents shall be contested by any
       Credit Party or TPC (as applicable); or"

              3.09 TPC-Related Event of Default. Article VIII of the Credit
Agreement is hereby amended by adding a new paragraph (q) therein immediately 
following paragraph (p) thereof to read as follows:

              "(q) Any of the Restricted Companies shall default in the payment
       of any Rent under the Master Site Lease Agreement (as defined in
       Amendment No. 3) and the same shall continue beyond the period of grace
       provided for therein and, as a result thereof, the Restricted Companies
       shall receive a "Cross Default Notice" under and as defined in Section
       27(d) of said Master Site Lease Agreement, or any of the Restricted
       Companies shall receive notice of one or more defaults under said Master
       Site Lease Agreement which defaults, if uncured, could result in the
       termination of the Restricted Companies' rights with respect to 10% or
       more of the sites covered in said Master Site Lease Agreement;"

              Section 4. Representations and Warranties. NCI and each of the
Restricted Companies hereby represents and warrants to the Lenders and the 
Agents that it has heretofore delivered to the Collateral Agent and Special 
Counsel true and complete copies of the Tower Merger Documents
(or forms thereof), including Amendment No. 1 to the Tower Merger Agreement.

              Section 5. Conditions Precedent. The consent set forth in Section
2 hereof, and the amendments set forth in Section 3 hereof, shall become
effective, as of the date hereof, upon the date on which each of the following 
conditions is satisfied (or waived in accordance with the last paragraph 
hereof):

              (a) Counterparts. The Administrative Agent (or Special Counsel)
       shall have received from NCI, the Restricted Companies and the Collateral
       Agent, either (i) a counterpart of this Amendment No. 3 signed on behalf
       of such party or (ii) written evidence satisfactory to the Administrative
       Agent (which may include telecopy 

                      TPC Guarantee and Security Agreement

<PAGE>   12
                                      -12-

       transmission of a signed signature page of this Amendment No. 3) that 
       such party has signed a counterpart of this Amendment No. 3.

              (b) TPC Guarantee and Security Agreement. TPC shall have executed
       and delivered in favor of the Collateral Agent a Guarantee and Security
       Agreement in substantially the form of Exhibit A hereto.

              (c) Opinion of Counsel to Credit Parties. The Administrative Agent
       (or Special Counsel) shall have received a favorable written opinion
       (addressed to the Administrative Agent and the Lenders and dated the
       Amendment No. 3 Effective Date) of Jones, Day, Reavis & Pogue, counsel to
       the Credit Parties, covering such matters relating to TPC and the TPC
       Guarantee and Security Agreement as either the Administrative Agent or
       the Collateral Agent shall request (and each Credit Party hereby requests
       such counsel to deliver such opinion). To the extent deemed appropriate
       by the Credit Parties, internal corporate matters in such opinion (such
       as due incorporation and the like) may be rendered in a separate opinion
       from the General Counsel of TPC.

              (d) Corporate Matters. The Administrative Agent (or Special
       Counsel) shall have received such documents and certificates as the
       Administrative Agent or Special Counsel may reasonably request relating
       to the organization, existence and good standing of TPC, the
       authorization of this Amendment No. 3 and any other legal matters
       relating to the Credit Parties, this Amendment No. 3, all in form and
       substance reasonably satisfactory to the Administrative Agent and its
       counsel.

              (e) TPC Collateral Security. TPC shall have taken such action
       (including executing and delivering such Uniform Commercial Code
       financing statements) as shall be necessary to create and perfect valid
       and enforceable first priority Liens consistent with the provisions of
       the TPC Guarantee and Security Agreement, on substantially all of the
       property of TPC, and the Transferring Subsidiaries shall have delivered
       to the Collateral Agent in pledge each of the TPC Notes (it being
       understood that the delivery of certificates evidencing the shares of
       Tower Aggregator Series C Preferred Stock contemplated by the TPC
       Guarantee and Security Agreement, together with the related stock powers,
       and the delivery of the TPC Notes to the Collateral Agent under the
       Restricted Company Guarantee and Security Agreement, shall not be
       required until the date upon which such shares are acquired by TPC
       pursuant to the Tower Merger Agreement).

              (f) Amendment to Restricted Company Guarantee and Security
       Agreement. The Restricted Companies shall have executed and delivered an
       amendment to the Restricted Company Guarantee and Security Agreement in
       form and substance satisfactory to the Collateral Agent confirming, to
       the extent necessary, the right of the Collateral Agent to exercise
       rights with respect to the TPC Notes upon the occurrence of a TPC Event
       of Default, regardless of whether any other Default or Event of Default
       under the Credit Agreement shall have occurred and be continuing (and
       regardless of whether any other 

                      TPC Guarantee and Security Agreement

<PAGE>   13
                                      -13-

       rights or remedies shall have been exercised by the Lenders or the 
       Agents under Article VIII of the Credit Agreement). 

              (g) Amendment Fee. The Administrative Agent shall have received,
       for account of each Lender that, by delivery of an appropriate
       authorization to the Administrative Agent (or Special Counsel) on or
       before 5:00 p.m., New York City time, on April 5, 1999, shall have
       authorized the Administrative Agent to execute and deliver this Amendment
       No. 3, an amendment fee in an amount equal to 1/4 of 1% of the sum of (i)
       the aggregate outstanding principal amount of the Loans and LC Exposure
       held by such Lender plus (ii) the aggregate unutilized amount of
       Commitments held by such Lender.

The Administrative Agent shall notify the Borrower and the Lenders of the
Amendment No. 3 Effective Date, and such notice shall be conclusive and binding.
Notwithstanding the foregoing, the consent set forth in Section 2, and the
amendments set forth in Section 3, shall not become effective unless each of the
foregoing conditions is satisfied (or waived pursuant to Section 10.02 of the
Credit Agreement) at or prior to 3:00 p.m., New York City time, on June 30, 1999
(and, in the event such conditions are not so satisfied or waived, the consent
and amendments contemplated hereby shall not become effective).

              None of the foregoing conditions may be waived, amended or 
modified except pursuant to an agreement or agreements in writing entered into
by NCI, the Restricted Companies, the Required Lenders and the Collateral
Agent, or by NCI, the Restricted Companies, the Collateral Agent, and the
Administrative Agent with the consent of the Required Lenders.

              Section 5. Miscellaneous. Except as herein provided, the Credit 
Agreement shall remain unchanged and in full force and effect. This Amendment
No. 3 may be executed in any number of counterparts, all of which taken
together shall constitute one and the same amendatory instrument and any of the
parties hereto may execute this Amendment No. 3 by signing any such
counterpart. This Amendment No. 3 shall be governed by, and construed in
accordance with, the law of the State of New York.


                      TPC Guarantee and Security Agreement


<PAGE>   14
                                      -14-


       IN WITNESS WHEREOF, the parties hereto have caused this Amendment No. 3
to Credit Agreement to be duly executed and delivered as of the day and year
first above written.

                                           NEXTEL COMMUNICATIONS, INC.

                                           By    /S/ STEVEN M. SHINDLER
                                                 ----------------------
                                                 Name:  Steven M. Shindler
                                                 Title: Vice President

                                RESTRICTED COMPANIES
                                --------------------

                                           NEXTEL FINANCE COMPANY

                                           By    /S/ STEVEN M. SHINDLER
                                                 ----------------------
                                                 Name: Steven M. Shindler
                                                 Title: Vice President


                      TPC Guarantee and Security Agreement

<PAGE>   15
                                      -15-


                                                 CELL CALL, INC.
                                                 FCI 900, Inc.
                                                 NEXTEL COMMUNICATIONS OF
                                                   THE MID-ATLANTIC, INC.
                                                 NEXTEL OF CALIFORNIA, INC.
                                                 NEXTEL LICENSE ACQUISITION
                                                   CORP.
                                                 NEXTEL LICENSE HOLDINGS 1,
                                                   INC.
                                                 NEXTEL LICENSE HOLDINGS 2,
                                                   INC.
                                                 NEXTEL LICENSE HOLDINGS 3,
                                                   INC.
                                                 NEXTEL LICENSE HOLDINGS 4,
                                                   INC.
                                                 NEXTEL OF NEW YORK, INC.
                                                 NEXTEL OPERATIONS, INC.
                                                 NEXTEL SOUTH CORP.
                                                 NEXTEL SOCAL, INC.
                                                 NEXTEL OF TEXAS, INC.
                                                 NEXTEL SYSTEMS CORP.
                                                 NEXTEL WEST CORP.
                                                 PITTENCRIEFF
                                                   COMMUNICATIONS, INC.
                                                 RADIOCALL SERVICE AND
                                                   SYSTEMS, INC.
                                                 SAFETY NET, INC.
                                                 SPECTRUM RESOURCES OF
                                                   THE NORTHEAST, INC.
                                                 SRI, INC.

                                                  By   /S/ STEVEN M. SHINDLER
                                                       Name: Steven M. Shindler
                                                       Title: Vice President



                      TPC Guarantee and Security Agreement
<PAGE>   16
                                      -16-


                                            FORT WORTH TRUNKED RADIO
                                             LIMITED PARTNERSHIP

                                            By Nextel of Texas, Inc.,
                                               a General Partner

                                             By  /S/ STEVEN M. SHINDLER
                                                 ----------------------
                                                 Name: Steven M. Shindler
                                                 Title: Vice President

TORONTO DOMINION (TEXAS) INC.,              THE CHASE MANHATTAN BANK,
  as Administrative Agent                    as Collateral Agent
                                            
By   /S/ JEFFREY R. LENTS                   By   /S/ TRACEY NAVIN EWING
     --------------------                        ----------------------
     Name:  Jeffrey R. Lents                     Name: Tracey Navin Ewing
     Title: Vice President                       Title: Vice President




                      TPC Guarantee and Security Agreement


<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the
Condensed Consolidated Balance Sheet at March 31, 1999 (Unaudited) and the
Condensed Consolidated Statement of Operations for the Three Months Ended March
31, 1999 (Unaudited) and is qualified in its entirety by reference to such
financial statements.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               MAR-31-1999
<CASH>                                         245,758
<SECURITIES>                                         0
<RECEIVABLES>                                  507,371
<ALLOWANCES>                                    68,115
<INVENTORY>                                     77,505
<CURRENT-ASSETS>                               888,576
<PP&E>                                       6,459,529
<DEPRECIATION>                               1,374,113
<TOTAL-ASSETS>                              11,421,586
<CURRENT-LIABILITIES>                        1,274,259
<BONDS>                                      8,005,738
                        1,624,287
                                    290,545
<COMMON>                                           293
<OTHER-SE>                                   (634,412)
<TOTAL-LIABILITY-AND-EQUITY>                11,421,586
<SALES>                                              0
<TOTAL-REVENUES>                               663,805
<CGS>                                                0
<TOTAL-COSTS>                                  162,320
<OTHER-EXPENSES>                               228,440
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                             198,059
<INCOME-PRETAX>                              (449,279)
<INCOME-TAX>                                   (9,839)
<INCOME-CONTINUING>                          (439,440)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                 (439,440)
<EPS-PRIMARY>                                   (1.66)
<EPS-DILUTED>                                   (1.66)
        

</TABLE>


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