AMERICAN TOWER CORP /MA/
10-Q, 1998-08-14
COMMUNICATIONS SERVICES, NEC
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<PAGE>
 
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                                 UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549
 
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                                   FORM 10-Q
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(Mark One):
X   Quarterly report pursuant to Section 13 or 15(d) of the Securities
    Exchange Act of 1934. FOR THE QUARTERLY PERIOD ENDED JUNE 30, 1998.
 
    Transition report pursuant to Section 13 or 15(d) of the Securities
    Exchange Act of 1934.
 
COMMISSION FILE NUMBER: 001-14195
 
                          AMERICAN TOWER CORPORATION
            (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
 
             DELAWARE                              65-0723837
  (State or other jurisdiction of               (I.R.S. Employer
  incorporation or organization)               Identification No.)
                             116 HUNTINGTON AVENUE
                          BOSTON, MASSACHUSETTS 02116
                   (Address of principal executive offices)
 
                        TELEPHONE NUMBER (617) 375-7500
             (Registrant's telephone number, including area code)
 
                      AMERICAN TOWER SYSTEMS CORPORATION
                  (Former name, if changed from last report)
 
  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
<TABLE>
<CAPTION>
                                                              OUTSTANDING AT
CLASS OF COMMON STOCK                                         JULY 31, 1998
- --------------------------------------------------------------------------------
<S>                                                           <C>
Class A Common Stock........................................   94,581,466 shares
Class B Common Stock........................................    9,177,126 shares
Class C Common Stock........................................    3,295,518 shares
- --------------------------------------------------------------------------------
Total.......................................................  107,054,110 shares
</TABLE>
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<PAGE>
 
                           AMERICAN TOWER CORPORATION
 
                                     INDEX
 
<TABLE>
<CAPTION>
                                                                       PAGE NO.
                                                                       --------
                         PART I. FINANCIAL INFORMATION
 
 <C>     <S>                                                           <C>
 ITEM 1. UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
        Consolidated Balance Sheets
         December 31, 1997 and June 30, 1998.........................      1
        Consolidated Statements of Operations
         Three and six months ended June 30, 1997 and 1998...........      2
        Consolidated Statements of Cash Flows
         Six months ended June 30, 1997 and 1998.....................      3
        Notes to Unaudited Condensed Consolidated Financial State-         4
         ments.......................................................
 ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
         AND RESULTS OF OPERATIONS..................................      12
 
                           PART II. OTHER INFORMATION
 
 ITEM 1. LEGAL PROCEEDINGS..........................................      19
 ITEM 2. CHANGES IN SECURITIES AND USE OF PROCEEDS..................      19
 ITEM 5. OTHER INFORMATION..........................................      19
 ITEM 6. EXHIBITS AND REPORTS ON FORM 8-K...........................      20
         SIGNATURES.................................................      22
</TABLE>
<PAGE>
 
                         PART I. FINANCIAL INFORMATION.
 
ITEM 1. UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
 
                  AMERICAN TOWER CORPORATION AND SUBSIDIARIES
 
                          CONSOLIDATED BALANCE SHEETS
                       (IN THOUSANDS, EXCEPT SHARE DATA)
<TABLE>
<CAPTION>
                                                       DECEMBER 31,  JUNE 30,
                                                           1997        1998
                                                       ------------ ----------
<S>                                                    <C>          <C>
ASSETS
CURRENT ASSETS:
  Cash and cash equivalents...........................   $  4,596   $   63,716
  Accounts receivable, net of allowance for doubtful
   accounts of $125 and $661, respectively ...........      3,239       13,213
  Unbilled receivables................................                   2,281
  Prepaid and other current assets....................        790        2,865
  Deferred income taxes...............................         63           63
                                                         --------   ----------
    Total current assets..............................      8,688       82,138
                                                         --------   ----------
PROPERTY AND EQUIPMENT, net...........................    117,618      346,741
UNALLOCATED PURCHASE PRICE, net.......................    108,192      660,177
OTHER INTANGIBLE ASSETS, net..........................      8,424       24,221
NOTE RECEIVABLE.......................................     10,700        4,100
DEPOSITS AND OTHER LONG-TERM ASSETS...................      1,735        2,850
DEFERRED INCOME TAXES.................................                  17,474
                                                         --------   ----------
TOTAL.................................................   $255,357   $1,137,701
                                                         ========   ==========
LIABILITIES AND STOCKHOLDERS' EQUITY
CURRENT LIABILITIES:
  Current portion of long-term debt...................   $    110   $    1,125
  Accounts payable....................................      3,738        4,824
  Accrued expenses....................................      4,492       21,917
  Accrued interest....................................        914          633
  Unearned income.....................................      1,752        5,912
  Interim Preferred Stock, due within one year, $0.01
   par value, 20,000,000 shares authorized, 300,000
   shares issued and outstanding; liquidation prefer-
   ence $1,000 per share plus accrued dividends of
   $2,316 ............................................                 302,316
  Due to CBS Corporation..............................                  44,827
                                                         --------   ----------
    Total current liabilities.........................     11,006      381,554
                                                         --------   ----------
LONG-TERM DEBT........................................     90,066      299,399
DEFERRED INCOME TAXES.................................        418
OTHER LONG-TERM LIABILITIES...........................         33          896
                                                         --------   ----------
    Total long-term liabilities.......................     90,517      300,295
                                                         --------   ----------
MINORITY INTEREST IN SUBSIDIARIES.....................        626          605
                                                         --------   ----------
COMMITMENTS AND CONTINGENCIES
REDEEMABLE CLASS A COMMON STOCK:
    $.01 par value, 720,000 shares issued and out-
     standing; at estimated redemption value of $24
     15/16 per share..................................                  17,955
                                                         --------   ----------
STOCKHOLDERS' EQUITY:
  Preferred Stock; $0.01 par value; 20,000,000 shares
   authorized; (See Interim Preferred Stock above for
   300,000 shares issued and outstanding).............
  Class A Common Stock; $.01 par value; 300,000,000
   shares authorized; 29,667,883 and 65,993,264 shares
   issued and outstanding, respectively...............        297          660
  Class B Common Stock; $.01 par value; 50,000,000
   shares authorized; 4,670,626 and 9,177,126 shares
   issued and outstanding, respectively...............         47           92
  Class C Common Stock; $.01 par value; 10,000,000
   shares authorized; 1,295,518 and 3,295,518 shares
   issued and outstanding, respectively...............         13           33
  Additional paid-in capital..........................    155,711      460,693
  Accumulated deficit.................................     (2,860)     (24,186)
                                                         --------   ----------
    Total stockholders' equity........................    153,208      437,292
                                                         --------   ----------
TOTAL.................................................   $255,357   $1,137,701
                                                         ========   ==========
</TABLE>
 
      See notes to unaudited condensed consolidated financial statements.
 
                                       1
<PAGE>
 
                  AMERICAN TOWER CORPORATION AND SUBSIDIARIES
 
                     CONSOLIDATED STATEMENTS OF OPERATIONS
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                      THREE MONTHS ENDED    SIX MONTHS ENDED
                                           JUNE 30,             JUNE 30,
                                      --------------------  ------------------
                                        1997       1998      1997      1998
                                      --------- ----------  -------- ---------
<S>                                   <C>       <C>         <C>      <C>
REVENUES:
  Tower rental and management.......  $  1,566  $   12,005  $ 2,931  $  21,498
  Site acquisition services.........       427       7,000      427     12,275
  Video, voice and data
   transmission.....................                 4,004               7,146
  Other.............................        22          73       23         89
                                      --------  ----------  -------  ---------
    Total operating revenues........     2,015      23,082    3,381     41,008
                                      --------  ----------  -------  ---------
OPERATING EXPENSES:
  Operating expenses excluding
   depreciation and amortization,
   tower separation expenses and
   corporate general and
   administrative expenses:
    Tower rental and management.....       604       5,430    1,142     10,330
    Site acquisition services.......       167       6,191      167     10,734
    Video, voice and data
     transmission...................                 2,717               4,769
  Depreciation and amortization.....       818       9,953    1,323     15,755
  Tower separation expenses.........                12,457              12,457
  Corporate general and
   administrative expense...........       261       1,084      540      1,626
                                      --------  ----------  -------  ---------
    Total operating expenses........     1,850      37,832    3,172     55,671
                                      --------  ----------  -------  ---------
INCOME (LOSS) FROM OPERATIONS.......       165     (14,750)     209    (14,663)
OTHER INCOME (EXPENSE):
  Interest expense..................      (222)     (7,472)    (318)    (9,902)
  Interest income and other, net....        32         966       57      1,831
  Minority interest in net earnings
   of subsidiaries..................       (81)       (110)    (161)      (189)
                                      --------  ----------  -------  ---------
TOTAL OTHER EXPENSE.................      (271)     (6,616)    (422)    (8,260)
                                      --------  ----------  -------  ---------
LOSS BEFORE BENEFIT FOR INCOME TAXES
 AND EXTRAORDINARY LOSS.............      (106)    (21,366)    (213)   (22,923)
INCOME TAX BENEFIT..................                 2,949       49      2,979
                                      --------  ----------  -------  ---------
LOSS BEFORE EXTRAORDINARY LOSS......      (106)    (18,417)    (164)   (19,944)
EXTRAORDINARY LOSS ON EXTINGUISHMENT
 OF DEBT, NET OF INCOME TAX BENEFIT
 OF $921............................                (1,382)             (1,382)
                                      --------  ----------  -------  ---------
NET LOSS............................  $   (106) $  (19,799) $  (164) $ (21,326)
                                      ========  ==========  =======  =========
BASIC AND DILUTED PER COMMON SHARE
 AMOUNTS:
  Loss before extraordinary loss....  $  (0.00) $    (0.33) $ (0.00) $   (0.39)
  Extraordinary loss................                 (0.02)              (0.03)
                                      --------  ----------  -------  ---------
  Net loss..........................  $  (0.00) $    (0.35) $ (0.00) $   (0.42)
                                      ========  ==========  =======  =========
WEIGHTED AVERAGE COMMON SHARE AND
 COMMON SHARE EQUIVALENTS
 OUTSTANDING........................    48,750      56,034   48,750     51,409
                                      ========  ==========  =======  =========
</TABLE>
 
      See notes to unaudited condensed consolidated financial statements.
 
                                       2
<PAGE>
 
                  AMERICAN TOWER CORPORATION AND SUBSIDIARIES
 
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                            SIX MONTHS ENDED
                                                                JUNE 30,
                                                           -------------------
                                                             1997      1998
                                                           --------  ---------
<S>                                                        <C>       <C>
CASH FLOWS FROM (USED FOR) OPERATING ACTIVITIES........... $    269  $  (8,734)
                                                           --------  ---------
CASH FLOWS FROM INVESTING ACTIVITIES:
  Payments for purchase of property and equipment and
   construction...........................................   (3,635)   (34,910)
  Payments for intangible assets..........................                (852)
  Payments for acquisitions...............................  (19,547)  (120,775)
  Advances of notes receivable............................     (254)    (9,100)
  Repayment of notes receivable...........................               2,000
  Deposits and other long-term assets.....................      (19)      (897)
                                                           --------  ---------
Cash used for investing activities........................  (23,455)  (164,534)
                                                           --------  ---------
CASH FLOWS FROM FINANCING ACTIVITIES:
  Borrowings under loan agreement.........................   19,000    205,500
  Repayments of other notes payable.......................     (307)  (117,924)
  Net proceeds from private placement equity offering and
   stock options..........................................              80,340
  Cash transfers to CBS Corporation.......................            (221,665)
  Net proceeds from Interim Preferred Stock...............             300,000
  Contributions from ARS..................................    6,851     56,954
  Cash transfers to ARS...................................   (2,650)   (51,856)
  Distributions to minority interest......................     (210)      (210)
  Additions to deferred financing costs...................             (18,751)
                                                           --------  ---------
Cash provided by financing activities.....................   22,684    232,388
                                                           --------  ---------
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS......     (502)    59,120
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD............    2,373      4,596
                                                           --------  ---------
CASH AND CASH EQUIVALENTS, END OF PERIOD.................. $  1,871  $  63,716
                                                           ========  =========
NON-CASH TRANSACTIONS:
  Contribution of fixed assets and other assets from ARS..           $   6,488
  Issuance of common stock for acquisitions...............           $ 363,100
  Increase in deferred tax assets from corporate
   restructuring..........................................           $ 135,000
  Increase in due to CBS Corporation from estimated
   remaining tax liabilities..............................           $  54,700
  Adjustment to equity for CBS tax liability..............           $  76,960
</TABLE>
 
 
      See notes to unaudited condensed consolidated financial statements.
 
                                       3
<PAGE>
 
                  AMERICAN TOWER CORPORATION AND SUBSIDIARIES
 
        NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
 
1. BASIS OF PRESENTATION
 
  The accompanying financial statements have been prepared by American Tower
Corporation (ATC or the Company, formerly American Tower Systems Corporation
), without audit, pursuant to the rules and regulations of the Securities and
Exchange Commission. Although certain information and footnote disclosures
normally included in financial statements prepared in accordance with
generally accepted accounting principles have been condensed or omitted
pursuant to such rules and regulations, the Company believes that the
disclosures are adequate to make the information presented not misleading and
reflect all adjustments (consisting only of normal recurring adjustments) that
are necessary for a fair presentation of results of operations for such
periods. Results of interim periods may not be indicative of results for the
full year. These financial statements should be read in conjunction with the
consolidated financial statements for the year ended December 31, 1997 and the
notes thereto included in the Company's Form 10-K.
 
  Accounting Policies--In June 1998, the Financial Accounting Standards Board
(FASB) issued Statement of Financial Accounting Standards (FAS) No. 133,
"Accounting for Derivative Instruments and Hedging Activities." FAS No. 133
establishes standards for accounting and reporting for derivative instruments,
and conforms the requirements for treatment of different types of hedging
activities. This statement is effective for all fiscal quarters of years
beginning after June 1999. The Company has not completed its evaluations of
FAS No. 133, but does not expect it to significantly affect the accounting and
reporting of its current hedging activities.
 
  Comprehensive Income--Effective January 1, 1998, the Company adopted the
provisions of FAS No. 130, "Reporting Comprehensive Income." There are
currently no items other than net income which would be classified as part of
comprehensive income.
 
  Tower Separation expenses--Tower separation expenses consist of costs
incurred in connection with the separation of the Company from its former
parent and include legal, accounting, financial advisory, and consent
solicitation fees.
 
  Reclassifications--Certain reclassifications have been made to the 1997
financial statements to conform to the 1998 presentation.
 
2. BUSINESS AND CORPORATE STRUCTURE
 
  ATC was a majority owned subsidiary of American Radio Systems Corporation
(ARS or American Radio) until consummation of the CBS Merger on June 4, 1998,
as discussed below. American Tower Systems (Delaware), Inc. (ATSI) is a
wholly-owned subsidiary of ATC and one of the operating subsidiaries of ATC.
American Tower Systems, L.P. (ATSLP) is an indirect wholly-owned subsidiary of
ATC, which conducts all of the business of ATC other than that conducted by
ATSI or by the subsidiaries acquired as a consequence of the ATC Merger. (See
Note 8). ATSI and ATSLP are collectively referred to as the Borrower
Subsidiaries.
 
  CBS Merger: On June 4, 1998, the merger of American Radio and a subsidiary
of CBS Corporation (CBS) was consummated (the CBS Merger). As a consequence,
all of the shares of ATC owned by ARS were distributed to ARS common
stockholders and holders of options to acquire ARS Common Stock or have been
or will be distributed upon conversion of shares of ARS 7% Convertible
Exchangeable Preferred Stock (the Convertible Preferred Stock). As a
consequence of the CBS Merger, ATC ceased to be a subsidiary of, or to be
otherwise affiliated with, American Radio and now operates as an independent
publicly traded company. Pursuant to the provisions of the CBS Merger
Agreement, ATC entered into an agreement (the Separation Agreement) with CBS
and ARS providing for, among other things, the orderly separation of ARS and
ATC, the allocation of certain tax liabilities to ATC, certain closing date
adjustments relating to ARS, the lease to ARS by
 
                                       4
<PAGE>
 
                  AMERICAN TOWER CORPORATION AND SUBSIDIARIES
 
  NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
ATC of space on certain towers previously owned by ARS and transferred to ATC,
the lease of corporate office space, and certain indemnification obligations
(including with respect to securities law matters) of ATC.
 
  The Separation Agreement required ATC to reimburse CBS on a "make-whole"
(after tax) basis for the tax liabilities incurred by ARS attributable to the
distribution of the Common Stock owned by ARS to the ARS security holders and
certain related transactions to the extent that the aggregate amount of taxes
required to be paid by ARS exceeded $20.0 million. The amount of that tax
liability was dependent on the "fair market value" of the Common Stock at the
time of the consummation of the CBS Merger. ATC received an appraisal from an
independent appraisal firm that the "fair market value" of ARS's stock
interest in ATC was equal to $17.25 per share. Based on such appraisal, ARS
paid estimated taxes of approximately $212.0 million and was reimbursed
therefore by ATC. As required by the Separation Agreement, ATC provided CBS
with security of $9.8 million in cash (which may be replaced at ATC's option
with a letter of credit reasonably satisfactory to CBS) in connection with the
filing of estimated tax returns based on such appraisal. Such appraisal is
not, of course, binding on the Internal Revenue Service or other taxing
authorities. The Company financed its tax reimbursement obligations to CBS
with the Interim Preferred Stock proceeds discussed in Note 6. The $212.0
million payment also included estimated payments for the "make-whole"
provisions of the liability associated with the conversion of the Convertible
Preferred Stock and the working capital adjustment described below. Such taxes
gave effect to estimated deductions of approximately $85.1 million available
to ARS as a consequence of the cancellation or exercise of ARS stock options
pursuant to the CBS Merger. ATC's reimbursement obligation with respect to
such taxes would change by approximately $21.0 million for each $1.00 change
in the "fair market value" of the Class A Common Stock under the tax reporting
method followed. The average of the high and low trading prices of the Class A
Common Stock in the when-issued over-the-counter market on June 4, 1998 was
$20.50.
 
  The $212.0 million payment did not include all the taxes payable with
respect to the shares of Class A Common Stock deliverable upon conversion of
the Convertible Preferred Stock; such taxes will be based on the "fair market
value" of the Class A Common Stock at the time of conversion. Conversions have
occurred at various times since June 4, 1998. As of the date hereof, holders
of Depositary Shares representing approximately 43% of the Convertible
Preferred Stock have converted or have presented for conversion. ATC has
recorded a liability of approximately $4.7 million due to CBS associated with
these conversions and estimates that its remaining reimbursement obligation
with respect to the taxes on the remaining Convertible Preferred Stock will be
approximately $13.5 million under the tax reporting method followed. Such
estimate is based on the August 10, 1998 fair market value of the Class A
Common Stock of $23.25 per share. ATC's obligation for such conversions would
change by approximately $1.2 million for each $1.00 change in the fair market
value.
 
  ARS has agreed that it will pursue, for the benefit of and at the cost of
ATC, a refund claim, attributable to the "make-whole" provision, estimated at
between $40.0 million to $45.0 million, based on the appraised "fair market
value" and the estimated taxes attributable to conversions of the Convertible
Preferred Stock set forth above. Any such refund claim will, in fact, be based
on the actual amount of taxes paid. In light of existing tax law, there can,
of course, be no assurance that any such refund claim will be successful.
 
  The Separation Agreement provides for closing date balance sheet adjustments
based upon the working capital, as defined, and debt levels of ARS. ATC will
benefit from or bear the cost of such adjustments. ATC's preliminary estimate
of such adjustments is that it will be required to make a payment of not more
than $50.0 million and that, in addition, it will be required to reimburse CBS
for the tax consequences of any such payment. The estimated taxes and refund
amount stated above include such tax reimbursement amount. Since the amounts
of working capital and debt are dependent upon the uncertainty, among other
things, of recent operating results and cash capital contributions, as well as
CBS Merger expenses, the ultimate payment will differ from the estimate
provided herein and ATC is unable to state definitively what payments will be
owed by ATC to CBS. Based on the above estimates, ATC has recorded a $50.0
million liability due to CBS and corresponding reduction in equity to reflect
management's estimate at this time.
 
                                       5
<PAGE>
 
                  AMERICAN TOWER CORPORATION AND SUBSIDIARIES
 
  NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
 
  In connection with an inter-corporate taxable transfer of assets entered
into in January 1998 by ATC in contemplation of the separation of ATC and ARS,
a portion of the tax with respect to which ATC is obligated to indemnify CBS
was incurred. Such transfer resulted in an increase in the tax bases of ATC's
assets of approximately $366.5 million. ATC will have potential depreciation
and amortization deductions over the next 15 years of $24.4 million per year
resulting in a deferred tax asset of approximately $135.0 million.
 
3. LOSS PER COMMON SHARE DATA
 
  Basic loss per common share is computed using the weighted average number of
common shares outstanding during each 1998 period presented or outstanding
upon consummation of the CBS Merger during each 1997 period presented. Shares
issuable upon exercise of options have been excluded from the computation as
the effect is anti-diliutive. Had options been included in the computation,
shares for the diluted computation would have increased by approximately 4.3
million and 4.4 million for the three and six months ended June 30, 1998,
respectively. As described in Note 11, the Company issued approximately 27.9
million shares of Class A Common Stock in July 1998, which would materially
impact the per share data.
 
4. INCOME TAXES
 
  The Company provides for income taxes at the end of each interim period
based on the estimated effective tax rate for the full fiscal year for each
tax reporting corporate entity. Cumulative adjustments to the tax benefit
(provision) are recorded in the interim period in which a change in the
estimated annual effective rate is determined. Through January 1998, the
Company participated in a tax sharing agreement with ARS. The tax sharing
agreement was terminated in connection with the corporate restructuring
described in Note 2; the Company and its subsidiaries will now prepare and
file income tax returns on a separate consolidated basis.
 
5. UNALLOCATED PURCHASE PRICE
 
  The excess of purchase price over the estimated fair value of net assets
acquired has been preliminarily recorded as unallocated purchase price and is
being amortized over an estimated aggregate useful life of fifteen years using
the straight-line method. The consolidated financial statements reflect the
preliminary allocation of certain purchase prices as the appraisals for some
acquisitions have not yet been finalized. The Company is currently conducting
studies to determine the purchase price allocations and expects that upon
final allocation, the average estimated useful life will approximate fifteen
years. The final allocation of purchase price is not expected to have a
material effect on the Company's consolidated results of operations, liquidity
or financial position.
 
6. STOCKHOLDERS' EQUITY
 
  Interim Preferred Stock Financing--On June 4, 1998, the Company entered into
a stock purchase agreement (the Interim Financing Agreement) with respect to a
preferred stock financing which provided for the issuance and sale by ATC of
up to $400.0 million of Series A Redeemable Pay-In-Kind Preferred Stock (the
Interim Preferred Stock) to finance ATC's obligation to CBS with respect to
tax reimbursement. Pursuant to the Interim Financing Agreement, ATC issued
$300.0 million of Interim Preferred Stock and used the proceeds to fund its
tax reimbursement obligation to CBS, pay the commitment and other fees and
expenses of the issue and sale of such stock and to reduce bank borrowings.
The Interim Financing Agreement required that, to the extent the Interim
Preferred Stock had not been redeemed by June 1999, an exchange for a new
series of preferred stock would have taken place.
 
  Due to its short-term nature, the Interim Preferred Stock obligation has
been classified as a short-term liability. Dividends, which accrued at a rate
equal to the three-month LIBOR then in effect (approximately 5.69%) plus an
agreed upon adjustable spread (5.0% for the period in which the obligation was
outstanding), have been recorded as interest expense in the accompanying
financial statements.
 
                                       6
<PAGE>
 
                  AMERICAN TOWER CORPORATION AND SUBSIDIARIES
 
  NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
 
  As discussed in Note 11, the Interim Preferred Stock was redeemed on July 9,
1998 at a redemption price equal to $1,010 per share plus accrued and unpaid
dividends for an aggregate redemption value of $306.1 million. The Company
incurred an extraordinary loss of approximately $7.4 million, net of a tax
benefit of $4.9 million, during the third quarter of 1998, representing the
write-off of certain commitment, deferred financing and redemption fees.
 
  ATC Stock Purchase Agreement--On January 22, 1998, the Company consummated
the transactions contemplated by the stock purchase agreement (the ATC Stock
Purchase Agreement), dated as of January 8, 1998, with Steven B. Dodge,
Chairman of the Board, President and Chief Executive Officer of ARS and ATC,
and certain other officers and directors of ARS and ATC (or their affiliates
or family members or family trusts), pursuant to which those persons purchased
8.0 million shares of ATC Common Stock at a purchase price of $10.00 per share
for an aggregate purchase price of $80.0 million, including 4.0 million shares
by Mr. Dodge for $40.0 million. Payment of the purchase price was in the form
of cash aggregating approximately $30.6 million and in the form of notes
aggregating approximately $49.4 million which were repaid, including accrued
interest, upon consummation of the CBS Merger on June 4, 1998.
 
7. LONG-TERM DEBT
 
  New Credit Facilities--In June 1998, ATC and the Borrower Subsidiaries
entered into definitive agreements with respect to new credit facilities (the
New Credit Facilities). The New Credit Facilities with ATC provide for a
$150.0 million term loan maturing at the earlier of (i) eight and one-half
years or (ii) December 31, 2006, amortizing quarterly in an amount equal to
2.5% of the principal amount outstanding at June 30, 2001 at the end of each
quarter between such date and June 30, 2006, both inclusive, and the balance
in two equal installments on September 30 and December 31, 2006. The ATC New
Credit Facility was fully drawn at closing and provides for interest rates
determined, at the option of ATC, of either the LIBOR Rate (as to be defined)
plus 3.50% or the Base Rate (as to be defined) plus 2.5%. The New Credit
Facilities with the Borrower Subsidiaries provide for $900.0 million credit
facilities maturing at the earlier of (a) eight years or (b) June 30, 2006
consisting of the following: (i) a $250.0 million multiple-draw term loan,
(ii) a $400.0 million reducing revolving credit facility and (iii) a $250.0
million 364-day revolving credit facility that converts to a term loan
facility thereafter. The Borrower Subsidiaries borrowed $125.0 million in the
form of a term loan and an additional $19.0 million under the revolving credit
arrangements that was repaid out of the proceeds of the Interim Preferred
Stock sale. The interest rate provisions are similar to those in the prior
credit agreement, except that the range over the Base Rate is between 0.00%
and 1.250% and the range over the LIBOR Rate is between 0.750% and 2.250%.
Borrowings under the Borrower Subsidiaries' New Credit Facilities are
conditioned upon compliance with certain financial ratios and are required to
be repaid, commencing June 30, 2001, in increasing quarterly amounts designed
to amortize the loans through maturity. The loans to ATC and the Borrower
Subsidiaries are cross-guaranteed and cross-collateralized by substantially
all of the assets of the consolidated group. The Borrower Subsidiaries are
required to pay quarterly commitment fees equal to 0.375% or 0.250% per annum,
depending on their consolidated financial leverage, on the aggregate unused
portion of the aggregate commitment (other than, until take down, the 364-day
facility on which it is 0.125% until so taken down). Other provisions of the
Borrower Subsidiaries' New Credit Facilities are comparable to the prior
credit agreement, although the financial and other covenants are somewhat more
favorable to the Borrower Subsidiaries in certain respects, including an
increase of the Total Debt (of the Borrower Subsidiaries and their Restricted
Subsidiaries) to Annualized Operating Cash Flow ratio from 6.0:1 to 6.5:1 and
the inclusion of a Total Debt (of ATC and its Restricted Subsidiaries) to
Annualized Operating Cash Flow ratio of 8.0:1. The New Credit Facility of ATC
restricts the payment of cash dividends and other distributions and the
redemption, purchase or other acquisition of equity securities. In connection
with the repayment of borrowings under the prior credit agreement out of
proceeds of borrowings under the New Credit Facilities, ATC recognized an
extraordinary loss of approximately $1.4 million, net of a tax benefit of $0.9
million, during the second quarter of 1998.
 
                                       7
<PAGE>
 
                  AMERICAN TOWER CORPORATION AND SUBSIDIARIES
 
  NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
 
  Assumed Debt Obligations--In connection with the ATC Merger discussed in
Note 8, the Company assumed certain long-term note obligations of the acquired
entity including a term note payable that was paid at closing, a $4.4 million
noninterest-bearing secured note payable, due in annual installments through
December 2000, a $430,000 noninterest-bearing unsecured note payable, maturing
in October 1999 and other long-term obligations totaling approximately
$34,000.
 
8. ACQUISITIONS
 
  During the first six months of 1998 and 1997, the Company consummated the
following transactions. See the Form 10-K for additional information on these
transactions.
 
  General: The following acquisitions have all been accounted for by the
purchase method of accounting, and, accordingly, the operating results of the
acquired entities have been included in consolidated operating results since
the date of acquisition. The purchase prices have been allocated to the assets
acquired, principally intangible assets, and the liabilities assumed based on
their estimated fair values at the dates of acquisition. The excess of
purchase price over the estimated fair value of the net assets acquired has
been recorded as unallocated purchase price. The financial statements reflect
the preliminary allocation of certain purchase prices as the appraisals for
certain acquisitions have not yet been finalized. The Company does not expect
the final appraisals to have a material effect on the financial position,
results of operations or liquidity of the Company.
 
 1998 Acquisitions--
 
  In January 1998, the Company acquired all of the outstanding stock of Gearon
& Co. Inc. (Gearon), a company based in Atlanta, Georgia, for an aggregate
purchase price of approximately $80.0 million. The purchase price consisted of
approximately $32.0 million in cash and assumed liabilities and the issuance
of approximately 5.3 million shares of Class A Common Stock. Gearon is engaged
in site acquisition, development, construction and facility management of
wireless network communication facilities on behalf of its customers and owned
or had at the time of acquisition under construction approximately 40 tower
sites. Following consummation, the Company granted options to acquire up to
1,400,000 shares of Class A Common Stock at an exercise price of $13.00 to
employees of Gearon.
 
  In January 1998, the Company acquired all of the outstanding stock of OPM-
USA-Inc. (OPM), a company which owned approximately 90 towers at the time of
acquisition. In addition, OPM is in the process of developing an additional
160 towers that are expected to be constructed during the next 12 to 18
months. The purchase price, which is variable and based on the number of
towers completed and the forward cash flow of the completed OPM towers, could
aggregate up to $105.0 million, of which approximately $21.3 million was paid
at the closing. The Company had also agreed to provide the financing to OPM to
enable it to construct the 160 towers in an aggregate amount not to exceed
$37.0 million (less advances as of consummation aggregating approximately $5.7
million, excluding accrued interest). In May 1998, the Company paid the second
installment of approximately $18.2 million which was based on the number of
towers permitted and completed and the forward cash flow of the completed
towers as of April 30, 1998.
 
  In January 1998, the Company consummated the acquisition of a communications
site with six towers in Tucson, Arizona for approximately $12.3 million and
the acquisition of a tower near Palm Springs, California for approximately
$0.75 million.
 
  In February 1998, the Company acquired 11 communications tower sites in
northern California for approximately $11.8 million.
 
  In March 1998, the Company acquired a tower in Sacramento, California for
approximately $1.2 million.
 
 
                                       8
<PAGE>
 
                  AMERICAN TOWER CORPORATION AND SUBSIDIARIES
 
  NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
  In April 1998, the Company acquired a tower site in Pennsylvania for
approximately $0.15 million.
 
  In May 1998, the Company consummated the acquisition of the assets relating
to a teleport business serving the Washington D.C. area for approximately
$30.5 million.
 
  On June 8, 1998, the Company consummated the American Tower Corporation
Merger (ATC Merger) pursuant to which that entity was merged into ATC for an
aggregate preliminary purchase price of approximately $550.0 million. At the
time of closing, the acquired company owned approximately 775 communications
towers and managed approximately 125 communications towers. In conjunction
with the ATC Merger, the Company issued 28,782,386 shares of Class A Common
Stock valued at approximately $287.8 million (excluding 1,252,364 shares of
Common Stock reserved for options held by former employees of the acquired
company valued at approximately $9.7 million) and assumed approximately $4.5
million of redeemable preferred stock (which was paid at closing) and
$122.7 million of debt (of which approximately $118.3 million, including
interest and associated fees, was paid at closing). The purchase price also
includes acquisition costs, assumed working capital and deferred income taxes.
The Company borrowed $57.0 million under the then existing credit agreements
to fund a portion of the debt pay-off. Upon consummation of the ATC Merger,
the Company changed its name from American Tower Systems Corporation to
American Tower Corporation.
 
  In June 1998, the Company merged with a company owning a broadcasting tower
in the Boston, Massachusetts area and issued 720,000 shares of Class A Common
Stock to close the transaction. In connection with this transaction, ATC
acquired a $12.0 million note receivable and issued a corresponding
nonrecourse note payable which is payable only to the extent that payments on
the note receivable are made to ATC. As such, the amounts have been offset in
the accompanying financial statements. In addition, under a put agreement that
was consummated in connection with the merger, the sellers have the right to
require the Company to purchase, at any time prior to June 5, 1999, any or all
shares of ATC Class A Common Stock received pursuant to consummation of the
merger for a purchase price equal to the then current market price.
Accordingly, the 720,000 shares have been recorded as redeemable common stock
in the accompanying financial statements based on the June 30, 1998 fair
market value of $24 15/16. In connection with the public offering described in
Note 11, the sellers sold 383,750 of the 720,000 shares in July 1998 reducing
the Company's overall redemption obligation.
 
  In June 1998, ATC acquired four communication sites in Texas for a purchase
price of approximately $0.82 million, two communication sites in California
for approximately $1.7 million and a tower site in South Carolina for
approximately $1.1 million.
 
 1997 Acquisitions--
 
  In May 1997, the Company acquired the following:
 
  (i) 21 tower sites and a tower site management business in Georgia, North
Carolina and South Carolina for approximately $5.4 million;
 
  (ii) the assets of two affiliated companies engaged in the site acquisition
business in various locations in the United States for approximately $13.0
million; and
 
  (iii) three tower sites in Massachusetts for approximately $0.26 million.
 
  In May 1997, the Company and an unaffiliated party formed a limited
liability company (ATS/PCS, LLC, formerly Communications Systems Development,
LLC) to own and operate communication towers which will be constructed on over
50 tower sites in northern California. The Company advanced approximately $0.8
million to this entity and currently owns a 70% interest in the entity, with
the remaining 30% owned by an unaffiliated party. The accounts of the limited
liability company are included in the consolidated financial statements with
the other party's investment reflected as minority interest in subsidiary.
(See Note 10).
 
 
                                       9
<PAGE>
 
                  AMERICAN TOWER CORPORATION AND SUBSIDIARIES
 
  NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
 
  The following unaudited pro forma summary for the six months ended June 30,
1997 and 1998 presents the consolidated results of operations as if the
acquisitions had occurred as of January 1, 1997 after giving effect to certain
adjustments, including depreciation and amortization of assets and interest
expense on any debt incurred to fund the acquisitions. These unaudited pro
forma results have been prepared for comparative purposes only and do not
purport to be indicative of what would have occurred had the acquisitions been
made as of January 1, 1997 or of results which may occur in the future.
 
  In thousands, except per share data:
 
<TABLE>
<CAPTION>
                                             SIX MONTHS ENDED SIX MONTHS ENDED
                                              JUNE 30, 1997    JUNE 30, 1998
                                             ---------------- ----------------
   <S>                                       <C>              <C>
   Net revenues.............................     $ 52,205         $ 57,559
   Loss before extraordinary item...........      (20,918)         (31,695)
   Net loss.................................      (20,918)         (33,077)
   Basic and diluted net loss per common
    share...................................     $  (0.27)        $  (0.42)
</TABLE>
 
9. RELATED PARTY TRANSACTIONS
 
  While the Company was a majority owned subsidiary of ARS prior to the CBS
Merger discussed in Note 2, it received revenues of approximately $98,000,
$226,000, $179,000 and $565,000 from ARS for tower rentals at Company-owned
sites for the three months ended June 30, 1997 and 1998 and the six months
ended June 30, 1997 and 1998, respectively.
 
  In January 1998, ARS contributed to ATC 14 communications sites used by ARS
and various third parties (with an ARS aggregate net book value of
approximately $4.7 million), and ARS and ATC entered into leases or subleases
of space on the transferred towers. In May 1998, two additional communications
sites were transferred and leases entered into following acquisition by ARS of
the sites from third parties. These sites were contributed to ATC at an
aggregate ARS net book value of approximately $0.3 million.
 
  In June 1998, ARS contributed the majority of its corporate fixed assets to
ATC (with an ARS net book value of approximately $1.4 million).
 
  In conjunction with the ATC Merger discussed in Note 8, the Company assumed
consulting agreements with three shareholders. Management payments under these
agreements totaled approximately $25,000 for the three and six-month periods
ended June 30, 1998. The Company is obligated to make additional payments of
$150,000 in 1998 and $263,000 in 1999.
 
  Also in conjunction with the ATC Merger, the Company assumed land leases for
certain tower sites that are with an entity owned by a shareholder. The same
shareholder is the president of a tower fabrication and construction company.
Following consummation of the ATC Merger, the Company made payments of
approximately $526,000 to this entity for the three and six-month periods
ended June 30, 1998.
 
  See Note 6 for a description of the ATC Stock Purchase Agreement.
 
10. PENDING TRANSACTIONS
 
  ATC is negotiating certain changes in the ATS/PCS, LLC arrangements,
including the acquisition by ATS of the 58 communications sites in northern
California presently owned by ATS/PCS, LLC in exchange for shares of Class A
Common Stock, arrangements with respect to the development of communications
sites in other locations, a priority return of ATC's construction advances, an
increase in the percentage interest of the other member in ATS/PCS, LLC, and a
management fee to ATC.
 
                                      10
<PAGE>
 
                  AMERICAN TOWER CORPORATION AND SUBSIDIARIES
 
  NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
 
  In June 1998, ATC entered into an agreement to acquire a company which is in
the process of constructing approximately 40 towers in the Tampa, Florida
area, of which seven are presently operational. The purchase price will be
equal to the excess of (i) ten times the "Current Run Rate Cash Flow" at the
time of closing, over (ii) the principal amount of the secured note referred
to below. The purchase price will be payable in shares of Class A Common Stock
(valued at market prices shortly prior to closing) and, at the election of the
seller, cash in an amount not to exceed 49% of the purchase price. "Current
Run Rate Cash Flow" means twelve (12) times the excess of net revenues over
direct operating expenses for the month preceding closing. ATC is obligated to
advance construction funds to the seller in an aggregate amount not to exceed
$12.0 million in the form of a secured note (guaranteed by the stockholders on
a nonrecourse basis and secured by the stock of the seller), of which
approximately $4.1 million was advanced through June 30, 1998. The secured
note would be payable in the event the acquisition was not consummated.
Subject to the satisfaction of certain conditions, including, depending on the
circumstances, the expiration or earlier termination of the HSR Act waiting
period, the acquisition is expected to be consummated in the Spring of 1999.
 
  The Company is also pursuing the acquisitions of tower properties and tower
businesses in new and existing locations, although there are no definitive
purchase agreements with respect thereto.
 
11. SUBSEQUENT EVENTS
 
  On July 8, 1998, the Company completed a public offering of 27,861,987
shares of Class A Common Stock, $.01 par value per share (the Class A Common
Stock) (including 2,361,987 shares sold by the Company pursuant to the
exercise in full of the underwriters' over-allotment option) at $23.50 per
share. Certain selling stockholders sold an additional 3,874,911 shares in the
offering. Credit Suisse First Boston Corporation, BT Alex. Brown Incorporated,
Lehman Brothers Inc., Morgan Stanley & Co. Incorporated, Bear, Stearns & Co.
Inc., Merrill Lynch Pierce Fenner & Smith Incorporated and Smith Barney Inc.
were the underwriters of the Class A Common Stock. The Company's net proceeds
of the offering (after deduction of the underwriting discount and estimated
offering expenses) were approximately $625.4 million. On July 9, 1998, the
Company used approximately $306.1 million of the net proceeds from the
offering to redeem all of the outstanding shares of the Interim Preferred
Stock at a price of 101% of the stock's liquidation preference plus accrued
and unpaid dividends. The balance was invested in short-term investment grade
securities and will be used, together with borrowings under the New Credit
Facilities, to fund future acquisitions and construction activities. In
connection with the redemption of the Interim Preferred Stock, the Company
incurred an extraordinary loss of approximately $7.4 million, net of a tax
benefit of $4.9 million, during the third quarter of 1998.
 
  In July 1998, the Company acquired a microwave communication site in
southern California for approximately $80,000, ten tower sites in southern
Texas for approximately $6.3 million and three tower sites in Louisiana for
approximately $0.75 million.
 
  In July 1998, under an agreement assumed pursuant to the ATC Merger, the
Company acquired a tower site in Massachusetts for approximately $0.6 million.
The agreement also requires the Company to purchase an additional tower site
upon completion of its construction and tenant installation at a purchase
price that is based on a multiple of the tower site's contractual revenue.
 
  In August 1998, the Company acquired two towers in the metropolitan area of
Atlanta, Georgia for a purchase price of approximately $0.4 million.
 
                                      11
<PAGE>
 
ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
        RESULTS OF OPERATIONS
 
GENERAL
 
  This discussion contains "forward-looking statements" including statements
concerning projections, plans, objectives, future events or performance and
underlying assumptions and other statements which are other than statements of
historical fact. ATC wishes to caution readers that certain important factors
may have affected and could in the future affect ATC's actual results and
could cause ATC's actual results for subsequent periods to differ materially
from those expressed in any forward-looking statement made by or on behalf of
ATC. Such factors include (i) substantial capital requirements and leverage
principally as a consequence of its ongoing acquisition and construction
activities, as well as its remaining tax reimbursement and other obligations
owed to ARS pursuant to the CBS Merger, (ii) dependence on demand for wireless
communications and implementation of digital television, and (iii) the success
of ATC's new tower construction program. The following discussion should be
read in conjunction with the Company's Unaudited Condensed Consolidated
Financial Statements and the notes thereto. As ATC was a wholly-owned
subsidiary of American Radio during the periods presented through June 4,
1998, the consolidated financial statements may not reflect the results of
operations or financial position of ATC had it been an independent, public
company during those periods. Because of ATC's relatively brief operating
history and the large number of recent acquisitions, the following discussion,
which relates solely to ATC on a historical basis and does not include
acquired companies, while presented to satisfy certain disclosure requirements
of the Securities and Exchange Commission, will not necessarily reveal any
significant developing or continuing trends.
 
  ATC was formed in July 1995 to capitalize on the opportunity in the
communications site industry. ATC is a leading independent owner and operator
of wireless communications towers in the United States. During 1997, its
acquisition and construction activity accelerated and ATC acquired or
constructed approximately 400 sites (and related site management businesses)
and its initial site acquisition and voice, video and data transmission
businesses. Since January 1, 1998, ATC has acquired approximately 930
communication sites and a major site acquisition business for an aggregate
purchase price of approximately $748.0 million, including the issuance of
approximately 34.9 million shares of Class A Common Stock.
 
  Management expects that acquisitions consummated to date will have a
material impact on future revenues, expenses and income from continuing
operations. In addition, the impact of the construction program of ATC is not
reflected to any significant extent in the historical financial information
because most of that activity is of more recent origin and is expected to
accelerate substantially during 1998. Management believes that readers should
be aware of the dramatic changes in the nature and scope of ATC's business in
reviewing the ensuing discussion of comparative historical results.
 
                                      12
<PAGE>
 
RESULTS OF OPERATIONS
 
  As of June 30, 1998, ATC operated approximately 1,800 communications sites,
principally in the Northeast and Mid-Atlantic regions, Florida, California and
Texas. As of June 30, 1997, ATC operated approximately 300 communications
sites, principally in the Northeast and Mid-Atlantic regions and Florida. See
the Notes to the Unaudited Condensed Consolidated Financial Statements for a
description of the acquisitions consummated during the six month periods ended
June 30, 1997 and 1998. These transactions have significantly affected
operations for the three and six months ended June 30, 1998 as compared to the
three and six months ended June 30, 1997.
 
THREE MONTHS ENDED JUNE 30, 1997 AND 1998 (DOLLARS IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                     THREE MONTHS ENDED
                                          JUNE 30,         AMOUNT OF  PERCENTAGE
                                     --------------------   INCREASE   INCREASE
                                       1997       1998     (DECREASE) (DECREASE)
                                     --------- ----------  ---------- ----------
<S>                                  <C>       <C>         <C>        <C>
Tower rental and management reve-
 nues..............................  $  1,566  $   12,005   $ 10,439      666.6%
Site acquisition service revenues..       427       7,000      6,573    1,539.3%
Video, voice and data transmission
 revenues..........................                 4,004      4,004
Other..............................        22          73         51      231.8%
                                     --------  ----------   --------   --------
Total operating revenues...........     2,015      23,082     21,067    1,045.5%
                                     --------  ----------   --------   --------
Tower rental and management ex-
 penses............................       604       5,430      4,826      799.0%
Site acquisition service expenses..       167       6,191      6,024    3,607.2%
Video, voice and data transmission
 expenses..........................                 2,717      2,717
                                     --------  ----------   --------   --------
Operating expenses excluding depre-
 ciation and amortization, tower
 separation and corporate general
 and administrative expenses.......       771      14,338     13,567    1,759.7%
                                     --------  ----------   --------   --------
Depreciation and amortization......       818       9,953      9,135    1,116.7%
Tower separation expenses..........                12,457     12,457
Corporate general and administra-
 tive expenses.....................       261       1,084        823      315.3%
Interest expense, net..............       190       6,506      6,316    3,324.2%
Minority interest in net earnings
 (loss) of subsidiaries............        81         110         29       35.8%
Income tax benefit.................                 2,949      2,949
Extraordinary loss on extinguish-
 ment of debt......................                 1,382      1,382
                                     --------  ----------   --------   --------
Net loss...........................  $   (106) $  (19,799)  $(19,693)  18,578.3%
                                     ========  ==========   ========   ========
</TABLE>
 
  As noted above, ATC consummated numerous acquisitions in 1997 and 1998, many
of which were of a material size. Except as explained below, substantially all
of the increases indicated in the above table were attributable to the impact
of these communications sites and related business acquisitions, principally
those that occurred in 1997 and 1998. Site acquisition service revenues and
expenses for the three months ended June 30, 1998 include the operating
results of the Gearon site acquisition division that was acquired in January
1998 and, to a lesser extent, the operating results of two similar businesses
that were acquired in May 1997. For the three months ended June 30, 1997, site
acquisition service revenues and expenses included approximately two months of
operating results from the May 1997 related business acquisitions. Video,
voice and data transmission revenues and expenses for the three months ended
June 30, 1998 include the operating results of the Company's first video,
voice and data transmission business acquired in October 1997 and, to a lesser
extent, a Washington D.C. area teleport business acquired in May 1998. The
increase in depreciation and amortization is primarily attributable to the
increase in depreciable and amortizable assets resulting from the 1997 and
1998 acquisitions, and, to a lesser extent, completed construction projects.
Tower separation expenses relate to financial advisory, legal, accounting and
consent solicitation fees and other expenses incurred in connection with the
consummation of the CBS Merger and the separation of ATC from its former
parent on June 4, 1998. The increase in corporate
 
                                      13
<PAGE>
 
general and administrative expense is primarily attributable to the higher
personnel costs associated with supporting ATC's greater number of tower
properties and growth strategy. The increase in interest expense, net, relates
to higher borrowing levels that were used to finance 1997 and 1998
acquisitions and $2.3 million of dividends associated with the Interim
Preferred Stock financing that occurred in June 1998. The minority interest in
net earnings of subsidiaries represents the elimination of the minority
stockholders' earnings of consolidated subsidiaries. The extraordinary loss
was incurred, net of an income tax benefit of $0.9 million, as a result of the
write-off of deferred financing costs associated with the Company's previous
credit agreements which were refinanced in June 1998. The effective tax rate
benefit for the three months ended June 30, 1998 was approximately 13.8% as
compared to 0% for the three months ended June 30, 1997. The effective rate
benefit in 1998 is due to the effect of non-deductible items, principally
amortization of goodwill, on certain stock acquisitions for which no tax
benefit was recorded.
 
SIX MONTHS ENDED JUNE 30, 1997 AND 1998 (DOLLARS IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                       SIX MONTHS ENDED
                                           JUNE 30,        AMOUNT OF  PERCENTAGE
                                       ------------------   INCREASE   INCREASE
                                        1997      1998     (DECREASE) (DECREASE)
                                       -------- ---------  ---------- ----------
<S>                                    <C>      <C>        <C>        <C>
Tower rental and management reve-
 nues................................  $ 2,931  $  21,498   $ 18,567      633.5%
Site acquisition service revenues....      427     12,275     11,848    2,774.7%
Video, voice and data transmission
 revenues............................               7,146      7,146
Other................................       23         89         66      287.0%
                                       -------  ---------   --------   --------
Total operating revenues.............    3,381     41,008     37,627    1,112.9%
                                       -------  ---------   --------   --------
Tower rental and management ex-
 penses..............................    1,142     10,330      9,188      804.6%
Site acquisition service expenses....      167     10,734     10,567    6,327.5%
Video, voice and data transmission
 expenses............................               4,769      4,769
                                       -------  ---------   --------   --------
Operating expenses excluding
 depreciation and amortization, tower
 separation and corporate general and
 administrative expenses.............    1,309     25,833     24,524    1,873.5%
                                       -------  ---------   --------   --------
Depreciation and amortization........    1,323     15,755     14,432    1,090.9%
Tower separation expenses............              12,457     12,457
Corporate general and administrative
 expenses............................      540      1,626      1,086      201.1%
Interest expense, net................      261      8,071      7,810    2,992.3%
Minority interest in net earnings
 (loss) of subsidiaries..............      161        189         28       17.4%
Income tax benefit...................       49      2,979      2,930    5,979.6%
Extraordinary loss on extinguishment
 of debt.............................               1,382      1,382
                                       -------  ---------   --------   --------
Net loss.............................  $  (164) $ (21,326)  $(21,162)  12,903.7%
                                       =======  =========   ========   ========
</TABLE>
 
  As noted above, ATS consummated numerous acquisitions in 1997 and 1998, many
of which were of a material size. Except as explained below, substantially all
of the increases indicated in the above table were attributable to the impact
of these communications sites and related business acquisitions, principally
those that occurred in 1997 and 1998. The increase in depreciation and
amortization is primarily attributable to the increase in depreciable and
amortizable assets resulting from the 1997 and 1998 acquisitions, and, to a
lesser extent, completed construction projects. Tower separation expenses
relate to financial advisory, legal, accounting and consent solicitation fees
and other expenses incurred in connection with the consummation of the CBS
Merger and the separation of ATC from its former parent on June 4, 1998. The
increase in corporate general and administrative expenses is primarily
attributable to the higher personnel costs associated with supporting ATS's
greater number of tower properties and growth strategy. The increase in
interest expense, net, relates to higher borrowing levels that were used to
finance 1997 and 1998 acquisitions, and $2.3 million of dividends associated
with the Interim Preferred Stock financing that occurred in June 1998. The
minority interest in net earnings of subsidiaries represents the elimination
of the minority stockholders' earnings of consolidated subsidiaries. The
 
                                      14
<PAGE>
 
extraordinary loss was incurred, net of an income tax benefit of $0.9 million,
as a result of the write-off of deferred financing costs associated with the
Company's previous credit agreements which were refinanced in June 1998. The
effective tax rate benefit for the six months ended June 30, 1998 was
approximately 13% as compared to 23% for the six months ended June 30, 1997.
The effective rate benefit in 1998 is due to the effect of non-deductible
items, principally amortization of goodwill, on certain stock acquisitions for
which no tax benefit was recorded.
 
LIQUIDITY AND CAPITAL RESOURCES
 
  ATC's liquidity needs arise from its acquisition-related activities, debt
service, working capital and capital expenditures principally those associated
with its construction program. Historically, ATC has met its operational
liquidity needs with internally generated funds and has financed the
acquisition of tower related properties, including related working capital
needs, with a combination of contributions from American Radio and bank
borrowings. For the six months ended June 30, 1998, cash flows used for
operating activities were $8.7 million, as compared to $.3 million of cash
flows from operating activities in 1997. The change is primarily attributable
to working capital investments related to communications site acquisitions and
growth.
 
  Cash flows used for investing activities were $164.5 million for the six
months ended June 30, 1998 as compared to $23.5 million for the six months
ended June 30, 1997. The increase in 1998 is due to the acquisition and
construction activity in 1998 as compared to 1997.
 
  Cash flows provided by financing activities were $232.4 million for the six
months ended June 30, 1998 as compared to $22.7 million in 1997. The increase
in 1998 is due principally to the impact of borrowings under the credit
facilities and proceeds from the Interim Preferred Stock financing and sale of
common stock pursuant to the ATC Stock Purchase Agreement, somewhat offset by
the tax payments to CBS.
 
  CBS Merger: On June 4, 1998, the merger of American Radio and a subsidiary
of CBS was consummated. As a consequence, all of the shares of ATC owned by
ARS were distributed to ARS common stockholders and holders of options to
acquire ARS Common Stock or have been or will be distributed upon conversion
of shares of Convertible Exchangeable Preferred Stock. As a consequence of the
CBS Merger, ATC ceased to be a subsidiary of, or to be otherwise affiliated
with, American Radio and operates as an independent publicly traded company.
Pursuant to the provisions of the CBS Merger Agreement, ATC entered into the
Separation Agreement with CBS and ARS providing for, among other things, the
orderly separation of ARS and ATC, the allocation of certain tax liabilities
to ATC, certain closing date adjustments relating to ARS, the lease to ARS by
ATC of space on certain towers previously owned by ARS and transferred to ATC,
the lease of corporate office space and certain indemnification obligations
(including with respect to securities law matters) of ATC.
 
  The Separation Agreement required ATC to reimburse CBS on a "make-whole"
(after tax) basis for the tax liabilities incurred by ARS attributable to the
distribution of the Common Stock to the ARS security holders and certain
related transactions to the extent that the aggregate amount of taxes required
to be paid by ARS exceeds $20.0 million. The amount of that tax liability was
dependent on the "fair market value" of the Common Stock at the time of the
consummation of the CBS Merger. ATC received an appraisal from an independent
appraisal firm that the "fair market value" of ARS's stock interest in ATC was
equal to $17.25 per share. Based on such appraisal, ARS paid estimated taxes
of approximately $212.0 million and was reimbursed therefor by ATC. As
required by the Separation Agreement, ATC provided CBS with security of $9.8
million in cash (which may be replaced at ATC's option with a letter of credit
reasonably satisfactory to CBS) in connection with the filing of estimated tax
returns based on such appraisal. Such appraisal is not, of course, binding on
the Internal Revenue Service or other taxing authorities. The Company financed
its tax reimbursement obligations to CBS with the Interim Preferred Stock
proceeds discussed below. The $212.0 million payment also included estimated
payments for the "make-whole" provisions of the liability associated with the
conversion of the Convertible Preferred Stock and the working capital
adjustment described below. Such taxes gave effect to estimated deductions of
approximately $85.1 million available to ARS as a consequence of the
cancellation or exercise of ARS stock options pursuant to the CBS Merger.
ATC's reimbursement obligation with respect to
 
                                      15
<PAGE>
 
such taxes would change by approximately $21.0 million for each $1.00 change
in the "fair market value" of the Class A Common Stock under the tax reporting
method followed. The average of the high and low trading prices of the Class A
Common Stock in the when-issued over-the-counter market on June 4, 1998 was
$20.50.
 
  The $212.0 million payment did not include all the taxes payable with
respect to the shares of Class A Common Stock deliverable upon conversion of
the Convertible Preferred Stock; such taxes will be based on the "fair market
value" of the Class A Common Stock at the time of conversion. Conversions have
occurred at various times since June 4, 1998. As of the date hereof, holders
of Depositary Shares representing approximately 43% of the Convertible
Preferred Stock have converted or have presented for conversion. ATC has
recorded a liability of approximately $4.7 million due to CBS associated with
these conversions, and ATC estimates that its remaining reimbursement
obligation with respect to the taxes on the remaining ARS Convertible
Preferred Stock will be approximately $13.5 million under the tax reporting
method followed. Such estimate is based on the August 10, 1998 fair market
value of the Class A Common Stock of $23.25 per share. ATC's obligation for
such conversions would change by approximately $1.2 million for each $1.00
change in the fair market value.
 
  ARS has agreed that it will pursue, for the benefit of and at the cost of
ATC, a refund claim, attributable to the "make-whole" provision, estimated at
between $40.0 million to $45.0 million, based on the appraised "fair market
value" and the estimated taxes attributable to conversions of the Convertible
Preferred Stock set forth above. Any such refund claim will, in fact, be based
on the actual amount of taxes paid. In light of existing tax law, there can,
of course, be no assurance that any such refund claim will be successful.
 
  The Separation Agreement provides for closing date balance sheet adjustments
based upon the working capital, as defined, and debt levels of ARS. ATC will
benefit from or bear the cost of such adjustments. ATC's preliminary estimate
of such adjustments is that it will be required to make a payment of not more
than $50.0 million and that, in addition, it will be required to reimburse CBS
for the tax consequences of any such payment. The estimated taxes and refund
amount stated above include such tax reimbursement amount. Since the amounts
of working capital and debt are dependent upon the uncertainty, among other
things, of recent operating results and cash capital contributions, as well as
CBS Merger expenses, the ultimate payment will differ from the estimate
provided herein and ATC is unable to state definitively what payments will be
owed by ATC to CBS. Based on the above estimates, ATC has recorded a $50.0
million liability due to CBS and corresponding reduction in equity to reflect
management's estimate at this time.
 
  Interim Preferred Stock Financing: On June 4, 1998, ATC issued $300.0
million of Interim Preferred Stock and used the proceeds to fund its tax
reimbursement obligation to CBS, pay the commitment and other fees and
expenses of the issue and sale of such stock and to reduce bank borrowings. As
discussed below, the Interim Preferred Stock was redeemed on July 9, 1998 and
as a result, the Company incurred an extraordinary loss of approximately $7.4
million, net of a tax benefit of $4.9 million, during the third quarter of
1998 representing the write-off of certain commitment, deferred financing and
redemption fees.
 
  Due to its short-term nature, the Interim Preferred Stock obligation has
been classified as a short-term liability. Dividends, which accrued at a rate
equal to the three-month LIBOR then in effect (approximately 5.69%) plus an
agreed upon adjustable spread (5.0% for the period in which the obligation was
outstanding), have been recorded as interest expense in the accompanying
financial statements.
 
  Public Offering of Class A Common Stock: On July 8, 1998, the Company
completed a public offering of 27,861,987 shares of Class A Common Stock, $.01
par value per share (including 2,361,987 shares sold by the Company pursuant
to the exercise in full of the underwriters' over-allotment option) at $23.50
per share. Certain selling stockholders sold an additional 3,874,911 shares in
the offering. The Company's net proceeds of the offering (after deduction of
the underwriting discount and estimated offering expenses) were approximately
$625.4 million. On July 9, 1998, the Company used approximately $306.1 million
of the net proceeds from the offering to redeem all of the outstanding shares
of the Interim Preferred Stock at a price of 101% of the stock's liquidation
preference plus accrued on unpaid dividends. The balance was invested in
short-term investment grade securities and will be used, together with
borrowings under the New Credit Facilities, to fund future acquisitions and
construction activities.
 
                                      16
<PAGE>
 
  New Credit Facilities: In June 1998, ATC and its Borrower Subsidiaries
entered into definitive agreements with respect to the New Credit Facilities.
The New Credit Facilities with ATS provide for a $150.0 million term loan
maturing at the earlier of (i) eight and one-half years or (ii) December 31,
2006, amortizing quarterly in an amount equal to 2.5% of the principal amount
outstanding at June 30, 2001 at the end of each quarter between such date and
June 30, 2006, both inclusive, and the balance in two equal installments on
September 30, and December 31, 2006. The ATC New Credit Facility was fully
drawn at closing and provides for interest rates determined, at the option of
ATC, of either the LIBOR Rate (as to be defined) plus 3.50% or the Base Rate
(as defined) plus 2.5%. The New Credit Facilities with the Borrower
Subsidiaries provide for $900.0 million credit facilities maturing at the
earlier of (a) eight years or (b) June 30, 2006 consisting of the following:
(i) a $250.0 million multiple-draw term loan, (ii) a $400.0 million reducing
revolving credit facility and (iii) a $250.0 million 364-day revolving credit
facility that converts to a term loan facility thereafter. The Borrower
Subsidiaries borrowed $125.0 in the form of a term loan and an additional
approximately $19.0 million under the revolving credit arrangements that was
repaid out of the proceeds of the Interim Preferred Stock sale. The interest
rate provisions are similar to those in the prior credit agreement, except
that the range over the Base Rate is between 0.00% and 1.250% and the range
over the LIBOR Rate is between 0.750% and 2.250%. Borrowings under the
Borrower Subsidiaries' New Credit Facilities are conditioned upon compliance
with certain financial ratios and are required to be repaid, commencing June
30, 2001, in increasing quarterly amounts designed to amortize the loans at
maturity. The loans to ATC and the Borrower Subsidiaries are cross-guaranteed
and cross-collateralized by substantially all of the assets of the
consolidated group. The Borrower Subsidiaries are required to pay quarterly
commitment fees equal to 0.375% or 0.250% per annum, depending on their
consolidated financial leverage, on the aggregate unused portion of the
aggregate commitment (other than, until take down, the 364-day facility on
which it is 0.125% until so taken down). Other provisions of the Borrower
Subsidiaries' New Credit Facilities are comparable to the prior credit
agreement, although the financial and other covenants are somewhat more
favorable to the Borrower Subsidiaries in certain respects, including an
increase of the Total Debt (of the Borrower Subsidiaries and their Restricted
Subsidiaries) to Annualized Operating Cash Flow ratio from 6.0:1 to 6.5:1 and
the inclusion of a Total Debt (of ATC and its Restricted Subsidiaries) to
Annualized Operating Cash Flow ratio of 8.0:1. The New Credit Facility of ATC
restricts the payment of cash dividends and other distributions and the
redemption, purchase or other acquisition of equity securities. In connection
with repayment of borrowings under the prior credit agreement out of proceeds
of borrowings under the New Credit Facilities, ATC recognized an extraordinary
loss of approximately $1.4 million, net of a tax benefit of $0.9 million,
during the second quarter of 1998.
 
  A substantial portion of ATC's cash flow from operations is required for
debt service. Accordingly, ATC's leverage could make it vulnerable to a
downturn in the operating performance of its tower properties or in economic
conditions. ATC believes that its cash flows from operations will be
sufficient to meet its debt service requirements for interest and scheduled
payments of principal under the New Credit Facilities. If such cash flow were
not sufficient to meet such debt service requirements, ATC might be required
to sell equity securities, refinance its obligations or dispose of one or more
of its properties in order to make such scheduled payments. There can be no
assurance that ATC would be able to effect any of such transactions on
favorable terms.
 
  ATC believes that it has sufficient financial resources available to it,
including borrowings under the New Credit Facilities to finance operations for
the foreseeable future. ATC intends to finance its obligations under pending
acquisitions out of borrowings under the New Credit Facilities.
 
  During the six months ended June 30, 1998, ATC had capital expenditures of
approximately $36.2 million primarily related to construction activities.
During 1998, ATC (including acquired companies) plans to build or commence
construction of approximately 500 towers (most of which are on a build to suit
basis) at an estimated aggregate cost of approximately $100.0 million. If
additional substantial acquisition or construction opportunities become
available, ATC may require additional financing during 1998. Any such
financing could take the form of an increase in the maximum borrowing levels
under the New Credit Facilities (which would be dependent on
 
                                      17
<PAGE>
 
the ability to meet certain leverage ratios), the issuance of debt or senior
equity securities (which could have the effect of increasing its consolidated
leverage ratios) or equity securities (which, in the case of Common Stock or
securities convertible into or exercisable for Common Stock, would have a
dilutive effect on the proportionate ownership of ATC of its then existing
common stockholders). There can be no assurance that any such financing would
be available on favorable terms.
 
  Management expects that the consummated acquisitions, including the ATC
Merger, and current and future construction activities will have a material
impact on liquidity. Management believes that the acquisition activities, once
integrated, will have a favorable impact on liquidity and will offset the
initial effects of the funding requirements. Management also believes that the
construction activities may initially have an adverse effect on the future
liquidity of ATC as newly constructed towers will initially decrease overall
liquidity, although, as such sites become more fully operational and achieve
higher utilization, they should generate cash flow, and in the long-term,
increase liquidity.
 
YEAR 2000
 
  ATC is aware of the issues associated with the Year 2000 as it relates to
information systems. The Year 2000 is not expected to have a material impact
on ATC's current information systems because its software is either already
Year 2000 compliant or required changes are not expected to generate material
costs. Based on the nature of ATC's business, ATC anticipates it is not likely
to experience material business interruption due to the impact of Year 2000
compliance on its customers and vendors. As a result, ATC does not anticipate
that incremental expenditures to address Year 2000 compliance will be material
to ATC's liquidity, financial position or results of operations over the next
few years.
 
INFLATION
 
  The impact of inflation on ATC's operations has not been significant to
date. However, there can be no assurance that a high rate of inflation in the
future will not have material adverse effect on ATC's operating results.
 
RECENT ACCOUNTING PRONOUNCEMENTS
 
  In June 1997, the FASB released FAS No. 131 "Disclosures about Segments of
an Enterprise and Related Information" (FAS 131). FAS 131 established
standards for reporting information about the operating segments in its annual
report and interim reports. ATC will provide the required disclosure in its
full year 1998 financial information and will provide required interim
disclosure commencing with its first fiscal quarter of 1999.
 
  In February 1998, the FASB released FAS No. 132, "Employer's Disclosures
about Pensions and Other Postretirement Benefits" (FAS 132), which ATC will be
required to adopt in 1998. FAS 132 will require additional disclosure
concerning changes in ATC's pension obligations and assets and eliminates
certain other disclosures no longer considered useful. Adoption of this
standard will have no effect on reported consolidated results of operations or
financial position.
 
  In June 1998, the FASB issued Statement of Financial Accounting Standards
(FAS) No. 133, "Accounting for Derivative Instruments and Hedging Activities."
FAS No. 133 establishes standards for accounting and reporting for derivative
instruments, and conforms the requirements for treatment of different types of
hedging activities. This statement is effective for all fixed quarters of
years beginning after June 1999. The Company has not completed its evaluations
of FAS No. 133, but does not expect it to significantly affect the accounting
and reporting of its current hedging activities.
 
                                      18
<PAGE>
 
                          PART II. OTHER INFORMATION.
 
ITEM 1.--LEGAL PROCEEDINGS.
 
  In the normal course of business, the Company is subject to certain suits
and other matters. Management believes that the eventual resolution of any
pending matters, either individually or in the aggregate, will not have a
material effect on financial position, liquidity or results of operations.
 
ITEM 2.--CHANGES IN SECURITIES AND USE OF PROCEEDS.
 
  Changes in Securities -- None
 
  Recent Sales of Unregistered Securities -- On June 4, 1998, the Company
entered into the Interim Financing Agreement with respect to a preferred stock
financing which provided for the issuance and sale by ATC of up to $400.0
million of the Interim Preferred Stock to finance ATC's obligation to CBS with
respect to tax reimbursement. Pursuant to the Interim Financing Agreement, ATC
issued 300,000 shares of Interim Preferred Stock with an initial aggregate
liquidation preference of $300.0 million to several institutional investors.
On July 9, 1998, the Company paid approximately $306.1 million to redeem all
of the outstanding shares of the Interim Preferred Stock at a price of 101% of
the stock's liquidation preference plus accrued and unpaid dividends.
 
  On June 17, 1998, the Company merged with a company owning a broadcasting
tower in the Boston, Massachusetts area and issued 720,000 shares of Class A
Common Stock. In connection with this transaction, ATC acquired a $12.0
million note receivable in connection with the merger and issued a
corresponding nonrecourse note payable which is payable only to the extent
that payments on the note receivable are made to ATC.
 
  All of the shares referred to in the foregoing paragraphs were issued by ATC
in reliance on the exemption from registration provided by Section 4(2) of the
Securities Act. Each holder represented that it was acquiring its shares for
investment purposes and not with a view to distribution within the meaning of
the Securities Act. The stock certificates issued to all such holders bore
restrictive legends. No underwriting discounts or commissions were paid by ATC
in connection with the foregoing transactions.
 
  Use of Proceeds -- The Company's Registration Statement on Form S-1 (File
No. 333-52481) under the Securities Act of 1933, as amended, for its public
equity offering (the "Registration Statement") became effective on July 1,
1998 and the offering commenced on July 2, 1998. The offering terminated after
the sale of all securities that were registered under the Registration
Statement. Credit Suisse First Boston Corporation, BT Alex. Brown
Incorporated, Lehman Brothers Inc., Morgan Stanley & Co. Incorporated, Bear,
Stearns & Co., Inc., Merrill Lynch Pierce Fenner & Smith Incorporated were the
managing underwriters of the offering. The Company registered and sold
27,861,987 shares of Class A Common Stock (including 2,361,987 shares sold by
the Company pursuant to the exercise in full of the underwriters' over-
allotment option) at $23.50 per share. The Company's net proceeds of the
offering (after deduction of the underwriting discount and estimated offering
expenses) were approximately $625.4 million. On July 9, 1998, the Company used
approximately $306.1 million of the net proceeds from the offering to redeem
all of the outstanding shares of the Interim Preferred Stock at a price of
101% of the stock's liquidation preference plus accrued and unpaid dividends.
The balance was invested in short-term investment grade securities and will be
used to fund future acquisitions and construction activities. None of the
expenses paid in connection with the registration and distribution of the
Class A Common Stock in the offering, and none of the net offering proceeds,
were paid directly or indirectly to directors, officers, or general partners
of the Company or their associates, persons owning 10% or more of any class of
the Company's securities, or affiliates of the Company.
 
ITEM 5.--OTHER INFORMATION.
 
  The Company has not scheduled its annual shareholders' meeting for 1999.
However, the Company anticipates that the meeting will be held in the month of
May. Shareholder proposals intended to be presented at the 1999 annual
shareholders' meeting must be received by the Secretary of ATC no later than,
January 1, 1999 in order to be included in the Company's proxy statement.
Failure to submit such shareholder proposals by the specified date will result
in management proxies being allowed to use their discretionary voting
authority when the proposal is raised at the annual meeting, without any
discussion of the matter in the proxy statement.
 
                                      19
<PAGE>
 
ITEM 6.--EXHIBITS AND REPORTS ON FORM 8-K.
 
 (a) Exhibits.
 
  Listed below are the exhibits which are filed as part of this Form 10-Q
(according to the number assigned to them in Item 601 of Regulation S-K). Each
exhibit marked by a (*) is incorporated by reference to Amendment No. 2 to
ATS's Registration Statement on Form S-1 (File No. 333-52481) as filed with
the Securities and Exchange Commission on June 30, 1998. Exhibit numbers in
parenthesis refer to the exhibit number in the above Registration Statement.
 
<TABLE>
<CAPTION>
 EXHIBIT NO.      DESCRIPTION OF DOCUMENT               EXHIBIT FILE NO.
 ----------- ---------------------------------   ------------------------------
 <C>         <S>                                 <C>
 3(i).1      Restated Certificate of
             Incorporation of ATS, as filed
             with the Secretary of State of
             the State of Delaware on June 5,
             1998.............................   (*3(i).1)
 3(i).2      Certificate of Designation
             relating to Exchange Pay-In-Kind
             Preferred Stock, as filed with
             the Secretary of State of the
             State of Delaware on June 4,
             1998.............................   (*3(i).2)
 3(i).3      Certificate of Designation
             relating to Series A Redeemable
             Pay-In-Kind Preferred Stock, as
             filed with the Secretary of State
             of the State of Delaware on June
             4, 1998..........................   (*3(i).3)
 3(ii).1     By-Laws of ATS...................   (*3(ii).1)
  10.1       Parent Loan Agreement, dated as
             of June 16, 1998, by and among
             ATS, Toronto Dominion (Texas),
             Inc., as Administrative Agent,
             and the Lenders parties thereto..   (*10.1)
  10.2A      ATS Facility A Loan Agreement,
             dated as of June 16, 1998, by and
             among American Tower Systems,
             L.P. ("ATSLP") and American Tower
             Systems (Delaware), Inc.
             ("ATSI"), as borrowers, and
             Toronto Dominion (Texas), Inc.,
             as Administrative Agent, and the
             Banks parties thereto............   (*10.2A)
  10.2B      ATS Facility B Loan Agreement,
             dated as of June 16, 1998, by and
             among ATSLP and ATSI, as
             borrowers, and Toronto Dominion
             (Texas), Inc., as Administrative
             Agent, and the Banks parties
             thereto..........................   (*10.2B)
  10.3       Registration Rights Agreement,
             dated as of January 22, 1998, by
             and among ATS and each of the
             Parties named therein............   Filed herewith as Exhibit 10.3
  10.4       ARS-ATS Separation Agreement,
             dated as of June 4, 1998 by and
             among American Radio Systems
             Corporation, ATS and CBS
             Corporation......................   (*10.30)
  10.5       Securities Purchase Agreement,
             dated as of June 4, 1998, by and
             among ATS, Credit Suisse First
             Boston Corporation and each of
             the Purchasers named therein.....   (*10.31)
  10.6       Registration Rights Agreement,
             dated as of June 4, 1998, by and
             among ATS, Credit Suisse First
             Boston Corporation, Conseco Life
             Insurance, American Travelers
             Life Insurance Co. and Great
             American Reserve Insurance Co. ..   (*10.32)
  10.7       Escrow Agreement, dated as of
             June 4, 1998, by and among ATS
             and Harris Trust and Savings
             Bank.............................   (*10.33)
   27        Financial Data Schedule..........   Filed herewith as Exhibit 27
</TABLE>
 
 
                                      20
<PAGE>
 
 (b) Reports on Form 8-K.
 
  1. Form 8-K (Items 5 and 7) on May 1, 1998.
 
  2. Form 8-K (Items 5 and 7) on June 4, 1998.
 
  3. Form 8-K (Items 2, 5 and 7) on June 10, 1998.
 
  4. Form 8-K (Items 5 and 7) on July 16, 1998.
 
                                       21
<PAGE>
 
                                   SIGNATURES
 
  PURSUANT TO THE REQUIREMENTS OF THE SECURITIES EXCHANGE ACT OF 1934, THE
REGISTRANT HAS DULY CAUSED THIS REPORT TO BE SIGNED ON ITS BEHALF BY THE
UNDERSIGNED, THEREUNTO DULY AUTHORIZED.
 
                                          American Tower Corporation
 
                                          By:     /s/ Joseph L. Winn
Date: August 14, 1998                       -----------------------------------
                                          Joseph L. Winn
                                          Treasurer & Chief Financial Officer
                                          (Duly Authorized Officer)
 
                                          By:    /s/ Justin D. Benincasa
Date: August 14, 1998                       -----------------------------------
                                          Justin D. Benincasa
                                          Vice President & Corporate
                                           Controller
                                          (Duly Authorized Officer)
 
                                       22

<PAGE>
 
                                                                    Exhibit 10.3




                         REGISTRATION RIGHTS AGREEMENT

                                     AMONG

                      AMERICAN TOWER SYSTEMS CORPORATION

                                      and

                         THE STOCKHOLDERS NAMED HEREIN



                               January 22, 1998
<PAGE>
 
                               TABLE OF CONTENTS


1.   Registration of Securities. .......................................  1
     (a)   Registration by ATS..........................................  1
     (b)   Registration at Stockholders' Request........................  2
     (c)   Registration Generally.......................................  3
     (d)   Restrictions on Registration.................................  8
     (e)   Additional Restrictions on Registration......................  8

2.   Conditions to Registration.........................................  8

3.   Indemnification....................................................  9
     (a)   Indemnification by ATS.......................................  9
     (b)   Indemnification by Holders of Registrable Securities.........  10
     (c)   Procedure....................................................  10
     (d)   Contribution.................................................  11

4.   Exchange Act Registration..........................................  12

5.   Termination of Registration Obligations............................  13

6.   Limitation on Registration Rights of Others........................  14

7.   Mergers, etc.......................................................  14

8.   Annual and Quarterly Reports; Other Information....................  14

9.   Lock-Up Agreement..................................................  15

10.  Withdrawals........................................................  15
 
11.  Definitions........................................................  15
 
12.  Miscellaneous................................................  19
     (a)   Assignment; Successors and Assigns...........................  19
     (b)   Specific Performance; Other Rights and Remedies..............  20
     (c)   Expenses.....................................................  20
     (d)   Entire Agreement.............................................  20
     (e)   Waivers; Amendments..........................................  20
     (f)   Notices......................................................  20
     (g)   Severability.................................................  21
     (h)   Counterparts.................................................  21
     (i)   Section Headings.............................................  21
     (j)   Governing Law................................................  21
     (k)   Further Acts.................................................  22
<PAGE>
 
                         REGISTRATION RIGHTS AGREEMENT


     This Registration Rights Agreement (this "Agreement") is made and entered
into as of January 22, 1998, by and among American Tower Systems Corporation, a
Delaware corporation ("ATS"), and the undersigned Persons which have heretofore
agreed to acquire or have acquired the Registrable Securities (individually a
"Stockholder" and collectively the "Stockholders" which term is further defined
in Section 12(a)).

     WHEREAS, American Radio Systems Corporation, a Delaware corporation
("ARS"), and certain of the Stockholders entered into that certain Registration
Rights Agreement dated as of November 1, 1993, as heretofore amended and
restated (as so amended and restated, the "ARS Agreement"); and

     WHEREAS, pursuant to the Agreement and Plan of Merger, dated as of
September 19, 1997, as amended and restated as of December 18, 1997, by and
among ARS, CBS Corporation (formerly, Westinghouse Electric Corporation) and R
Acquisition Corp. (the "ARS Merger Agreement"), the Stockholders who are parties
to the ARS Agreement will receive shares of Common Stock of ATS; and

     WHEREAS, ATS has agreed to grant to those Persons who were a party to the
ARS Agreement and who are or may be deemed to be Affiliates of ATS registration
rights comparable to those contained in the ARS Agreement; and

     WHEREAS, ATS has entered into a Stock Purchase Agreement, dated as of
January 8, 1998, with certain of the Stockholders relating to the issue and sale
of shares of Common Stock of ATS (the "ATS Stock Purchase Agreement"), and it is
a condition of the obligation of such Stockholders to consummate the
transactions contemplated by the ATS Stock Purchase Agreement that ATS enter
into an agreement substantially in the form of this Agreement; and

     WHEREAS, ATS has entered into and may in the future enter into agreements
pursuant to which it has agreed or will have agreed to issue securities the
holders of which have required or will require registration rights of a nature
set forth in this Agreement;

     NOW, THEREFORE, in consideration of the recitals, the mutual covenants and
agreements herein contained, and other valuable consideration, the receipt,
adequacy and sufficiency of which are hereby acknowledged, the parties hereto,
intending to be legally bound, do hereby covenant and agree as follows:
 
     1.   Registration of Securities.
          ---------------------------

     (a)  Registration by ATS.  If at any time or from time to time ATS shall
          -------------------                                                
propose to file on its behalf or on behalf of any of its security holders a
registration statement under the Securities Act with respect to any class of
Common Stock, except in connection with an Excluded Offering, ATS shall, except
to the extent not required to do so pursuant to the provisions of Section 1(d)
or 1(e), in each case:

          (i) promptly give written notice to each Stockholder at least thirty
     (30) days (or such shorter period as ATS deems reasonable under the
     circumstances) before the anticipated filing date. Such notice shall
     include the anticipated offering price or range thereof and the plan of
     distribution;
<PAGE>
 
          (ii)   include in such registration (and any related qualification
     under blue sky or other state securities laws), and, at the request of a
     Stockholder, in any underwriting involved therein, all Registrable
     Securities specified in a written request or requests, made within ten (10)
     business days after such written notice from ATS, by any Stockholder; and

          (iii)  use its reasonable business efforts to cause the managing
     underwriter or underwriters of any proposed underwritten offering of any
     class of Common Stock to permit the Registrable Securities requested to be
     included in the Registration Statement for such offering on the same terms
     and conditions as the Common Stock of ATS included therein.
     Notwithstanding the foregoing, if the managing underwriters of such
     offering deliver a written opinion to the holders of such Registrable
     Securities that marketing considerations require a limitation on the
     Registrable Securities included in any Registration Statement filed under
     this Section, then, subject to the advice of said managing underwriter or
     underwriters as to the size and composition of the offering, and subject to
     the provisions of Section 1(d), such limitation will be imposed pro rata
     (based upon the relative proposed public offering price of the Registrable
     Securities proposed to be included) among all holders of Registrable
     Securities who requested inclusion in the registration pursuant to this
     Section.

     If any Stockholder desires to have Registrable Securities registered under
this Section, it shall be required so to advise ATS in writing within ten (10)
business days after the date of ATS' notice, setting forth the number or amount
of Registrable Securities for which registration is so requested.  Neither the
delivery of the notice by ATS nor of the request by any Stockholders shall in
any way obligate ATS to file a Registration Statement and, notwithstanding such
filing, ATS may, at any time prior to the effective date thereof, determine not
to offer the securities to which the registration statement relates without
liability to any of the Stockholders. No registration of Registrable Securities
effected under this Section shall relieve ATS of its obligation to effect
registration of Registrable Securities upon any request made pursuant to the
provisions of Section 1(b).

     (b) Registration at Stockholders' Request.  Upon the written request of any
         -------------------------------------                                  
Significant Stockholder requesting that ATS effect the registration under the
Securities Act of all or part of the Registrable Securities held by such
Stockholder, specifying the intended method or methods of disposition of such
Registrable Securities, ATS shall, except to the extent not required to do so
pursuant to the provisions of this Section 1(b) or Section 1(d) or (e), promptly
(and in any event within five (5) business days) give written notice of such
requested registration to all holders of Registrable Securities and thereupon
will expeditiously prepare and, within forty-five (45) days, use its reasonable
business efforts to file under the Securities Act a registration statement and
effect the registration of:

          (i)  the Registrable Securities which ATS has been so requested to
     register by such Stockholders, for disposition in accordance with the
     intended method of disposition stated in such request, and

          (ii) all other Registrable Securities which ATS has been requested to
     register by the holders of Registrable Securities by written request
     delivered to ATS within ten (10) business days after the giving of such
     notice by ATS (which request shall specify the intended method of
     disposition of such Registrable Securities).

     Each registration requested pursuant to this Section shall be effected by
the filing of a Registration Statement on Form S-1 (or such other form as the
Commission may from time to time require in order to effectuate a public
offering of common stock of a company such as ATS and in a method of disposition
such as that proposed), unless the use of a different form has been agreed upon
in writing by holders of not less than a majority in value (based upon the
proposed public offering price) of the Registrable Securities as to which
registration has so been requested.  Notwithstanding the preceding sentence, ATS
need not so cause a

                                      -2-
<PAGE>
 
Registration Statement so filed pursuant to the provisions of this Section on a
Form S-1 (or any successor form) to become effective under the Securities Act on
more than three (3) occasions; provided, however, that there shall be no limit
on the number of times ATS is obligated to file Registration Statements on Form
S-2 or S-3 (or any successor forms) pursuant to the provisions of this Section
(except as contemplated by the definition of Significant Stockholder); and
provided further, however, that any registration of Registrable Securities
requested by one or more Stockholders pursuant to this Section which shall not
have become and remained effective in accordance with the provisions of Section
1(c) shall not be deemed to be a registration for purposes of this Section.

     ATS shall not grant to any person the right to request ATS to register, nor
shall ATS include in any registration pursuant to this Section, any securities
other than the Registrable Securities, without the written consent of holders of
not less than a majority in value (based upon the proposed public offering
price) of the Registrable Securities as to which registration has been so
requested.

     Whenever registration requested by one or more Stockholders pursuant to
this Section is for an underwritten offering, only Registrable Securities which
are to be distributed by the underwriters designated by such Stockholders may be
included in such registration, without the written consent of holders of not
less than a majority in value (based upon the proposed public offering price) of
the Registrable Securities as to which registration has been so requested.  If
Stockholders holding not less than a majority in value of the Registrable
Securities (based upon the proposed public offering price) to be included in
such registration shall determine that the number of Registrable Securities
should be limited due to market conditions or otherwise, all holders of
Registrable Securities proposing to sell Registrable Securities in such
underwritten offering shall share pro rata in the number of Registrable
Securities to be excluded from such underwritten offering, such sharing to be
based on the value (based upon the proposed public offering price) of the
respective numbers of Registrable Securities as to which registration has been
requested by such Stockholders.

          (c)  Registration Generally.  If and when ATS shall be required by the
               ----------------------                                           
provisions of this Section to effect the registration of Registrable Securities
under the Securities Act, ATS will use its reasonable business efforts to effect
such registration to permit the sale of such Registrable Securities in
accordance with the intended method or methods of disposition thereof, and
pursuant thereto it will, subject to the provisions of Section 1(d) and 1(e), as
expeditiously as possible:

          (i)  before filing a Registration Statement or Prospectus or any
     amendments or supplements thereto, furnish to the holders of the
     Registrable Securities covered by such Registration Statement and the
     managing underwriters, if any, copies of all such documents proposed to be
     filed, which documents will be made available, on a timely basis, for
     review by such holders and underwriters, and their respective counsel, and
     ATS will not file any Registration Statement or amendment thereto or any
     Prospectus or any supplement thereto to which the holders of not less than
     a majority in value (based upon the proposed public offering price) of the
     Registrable Securities covered by such Registration Statement or the
     managing underwriters, if any, shall reasonably have objected;

          (ii) prepare and file with the Commission such amendments and post-
     effective amendments to any Registration Statement, and such supplements to
     the Prospectus, as may be reasonably requested by any holder of Registrable
     Securities included in such Registration Statement or any underwriter of
     Registrable Securities or as may be required by the rules, regulations or
     instructions applicable to the registration form utilized by ATS or by the
     Securities Act, the Exchange Act or otherwise necessary to keep such
     Registration Statement effective for the applicable period and cause the
     Prospectus as so supplemented to be filed pursuant to Rule 424 under the
     Securities Act; and comply with the provisions of the Securities Act with
     respect to the disposition of all Registrable

                                      -3-
<PAGE>
 
     Securities covered by such Registration Statement during the applicable
     period in accordance with the intended method or methods of disposition by
     the holders of such Registrable Securities set forth in such Registration
     Statement or Prospectus as so supplemented;

          (iii)  notify the selling holders of Registrable Securities and the
     managing underwriters, if any, promptly, and (if requested by any such
     Person) confirm such advice in writing,

               (A) when the Prospectus or any supplement thereto or any
          amendment or post-effective amendment to the Registration Statement
          has been filed, and, with respect to the Registration Statement or any
          post-effective amendment, when the same has become effective,

               (B) of any request by the Commission for amendments or post-
          effective amendments to the Registration Statement or supplements to
          the Prospectus or for additional information,

               (C) of the issuance by the Commission of any stop order
          suspending the effectiveness of the Registration Statement or the
          initiation or threatening of any proceeding for such purpose,

               (D) if at any time the representations and warranties of ATS
          contemplated by paragraph (xv) below cease to be true and correct in
          all material respects,

               (E) of the receipt by ATS of any notification with respect to the
          suspension of the qualification of the Registrable Securities for sale
          in any jurisdiction or the initiation or threatening of any proceeding
          for such purpose, and

               (F) of the existence of any Event which results in the
          Registration Statement, the Prospectus or any document incorporated
          therein by reference containing an untrue statement of material fact
          or omitting to state a material fact required to be stated therein or
          necessary to make the statements therein, in light of the
          circumstances under which they were made, not misleading;

          (iv)  use its reasonable business efforts to obtain the withdrawal of
     any order suspending the effectiveness of the Registration Statement or any
     qualification referred to in paragraphs (iii)(C) and (iii)(E) at the
     earliest possible moment;

          (v)   if requested by the managing underwriters or a holder of
     Registrable Securities being sold in connection with an underwritten
     offering, immediately incorporate in a Prospectus supplement or post-
     effective amendment to the Registration Statement such information as the
     managing underwriters or the holders of not less than a majority in value
     (based upon the proposed public offering price) of the Registrable
     Securities being sold reasonably request to have included therein relating
     to the plan of distribution with respect to such Registrable Securities,
     including, without limitation, information with respect to the amount of
     other Registrable Securities being sold to such underwriters, the purchase
     price being paid therefor by such underwriters and with respect to any
     other terms of the underwritten (or best efforts underwritten) offering of
     the Registrable Securities to be sold in such offering; and make all
     required filings of such Prospectus supplement or post-effective amendment
     promptly after being notified of the matters to be incorporated in such
     Prospectus supplement or post-effective amendment;

                                      -4-
<PAGE>
 
          (vi)    at the request of any selling holder of Registrable
     Securities, furnish to such selling holder of Registrable Securities and
     each managing underwriter, if any, without charge, at least one signed copy
     of the Registration Statement and any post-effective amendment thereto,
     including financial statements and schedules, all documents incorporated
     therein by reference and all exhibits (including those incorporated by
     reference);

          (vii)   deliver to each selling holder of Registrable Securities and
     the underwriters, if any, without charge, as many copies of the
     Registration Statement, each Prospectus (including each preliminary
     prospectus) and any amendment or supplement thereto (in each case including
     all exhibits, except that ATS shall not be obligated to furnish any such
     selling holder more than two copies of such exhibits other than
     incorporation documents), as such persons may reasonably request, together
     with such documents incorporated by reference in such Registration
     Statement or Prospectus, and such other documents as such selling holder or
     underwriter may reasonably request in order to facilitate the disposition
     of the Registrable Securities covered by such registration statement; ATS
     consents to the use of each Prospectus or any supplement thereto by each
     selling holder of Registrable Securities and the underwriters, if any, in
     connection with the offering and sale of the Registrable Securities covered
     by each Registration Statement or any amendment thereto;

          (viii)  prior to any public offering of Registrable Securities, use
     its reasonable business efforts to register or qualify or cooperate with
     the selling holders of Registrable Securities, the underwriters, if any,
     and their respective counsel in connection with the registration or
     qualification of such Registrable Securities for offer and sale under the
     securities or blue sky laws of such jurisdictions as any selling holder or
     underwriter reasonably requests in writing and do any and all other acts or
     things necessary or advisable to enable the disposition in such
     jurisdictions of the Registrable Securities covered by the Registration
     Statement; provided, however, that ATS will not be required to qualify
     generally to do business in any jurisdiction where it is not then so
     qualified or to take any action which would subject it to general service
     of process or general taxation in any such jurisdiction where it is not
     then so subject;

          (ix)    cooperate with the selling holders of Registrable Securities
     and the underwriters, if any, to facilitate the timely preparation and
     delivery of certificates representing Registrable Securities to be sold and
     not bearing any restrictive legends; and enable such Registrable Securities
     to be in such denominations and registered in such names as the
     underwriters may reasonably request at least two (2) business days prior to
     any sale of Registrable Securities to the underwriters;

          (x)     use its reasonable business efforts to cause the Registrable
     Securities covered by the Registration Statement to be registered with or
     approved by such other governmental agencies or authorities as may be
     necessary or advisable to enable the sellers thereof or the underwriters,
     if any, to consummate the disposition of such Registrable Securities;

          (xi)    if any event contemplated by paragraph (iii) (F) above shall
     exist, prepare and furnish to such holders a post-effective amendment to
     the Registration Statement or supplement to the Prospectus or any document
     incorporated therein by reference or file any other required document so
     that, as thereafter delivered to the purchasers of the Registrable
     Securities, the Prospectus will not contain an untrue statement of a
     material fact or omit to state any material fact required to be stated
     therein or necessary to make the statements therein, in light of the
     circumstances under which they were made, not misleading;

          (xii)   cause all Registrable Securities covered by the Registration
     Statement to be listed on each securities exchange or other trading market
     on which securities of the same class are then listed 

                                      -5-
<PAGE>
 
     or traded or, if the Registrable Securities are not then listed on a
     securities exchange, and if the NASD is reasonably likely to permit the
     inclusion of the Registrable Securities on NASDAQ, use its reasonable
     business efforts to facilitate the inclusion of the Registrable Securities
     on NASDAQ;

          (xiii)  not later than the effective date of the Registration
     Statement, provide a CUSIP number for all Registrable Securities and
     provide the applicable transfer agent or agents with printed certificates
     or instruments for the Registrable Securities which are in a form eligible
     for deposit with Depository Trust Company or other transferee and otherwise
     meeting the requirements of any securities exchange or other trading market
     on which such Registrable Securities are listed or traded;

          (xiv)   pay all Registration Expenses in connection with any
     registration pursuant to the provisions of this Section. Without limiting
     the generality of the foregoing, in connection with each Registration
     Statement required hereunder, ATS will reimburse the holders of Registrable
     Securities being registered pursuant to such Registration Statement for the
     reasonable fees and disbursements of not more than one counsel (or more
     than one counsel if a conflict exists among such selling holders in the
     exercise of the reasonable judgment of counsel for the selling holders and
     counsel for ATS, provided that such selling holders shall use their
     reasonable business efforts to minimize conflicts of counsel) chosen by the
     holders of not less than a majority in value (based on the proposed public
     offering price) of the Registrable Securities being sold;

          (xv)    enter into agreements (including underwriting agreements) and
     take all other appropriate actions in order to expedite or facilitate the
     disposition of such Registrable Securities and in such connection, whether
     or not an underwriting agreement is entered into and whether or not the
     offer and sale of the Registrable Securities is an underwritten offering:

               (A) make such representations and warranties to the holders of
          such Registrable Securities and the underwriters, if any, in form,
          substance and scope, reasonably satisfactory to such holders and
          underwriters, as are customarily made by issuers to underwriters in
          primary underwritten offerings;

               (B) obtain opinions and updates thereof of counsel which counsel
          and opinions to ATS (in form, scope and substance) shall be reasonably
          satisfactory to the underwriters, if any, and the holders of not less
          than a majority in value (based on the proposed public offering price)
          of the Registrable Securities being sold, addressed to each selling
          holder and the underwriters, if any, covering the matters customarily
          covered in opinions requested in underwritten offerings and such other
          matters as may be reasonably requested by such holders and
          underwriters;

               (C) obtain so-called "cold comfort" letters and updates thereof
          from ATS' independent public accountants addressed to the selling
          holders of Registrable Securities and the underwriters, if any, such
          letters to be in customary form and covering matters of the type
          customarily covered in "cold comfort" letters to underwriters in
          connection with primary underwritten offerings and such other matters
          as may be reasonably requested by such holders and underwriters;

               (D) if an underwriting agreement is entered into, cause the same
          to set forth in full the indemnification provisions and procedures of
          Section 3 (or such other substantially similar provisions and
          procedures as the underwriters shall reasonably request) with respect
          to all parties to be indemnified pursuant to said Section; and

                                      -6-
<PAGE>
 
               (E) deliver such documents and certificates as may be reasonably
          requested by the holders of not less than a majority in value (based
          on the proposed public offering price) of the Registrable Securities
          being sold or the underwriters, if any, to evidence compliance with
          the provisions of this Section and with any customary conditions
          contained in the underwriting agreement or other agreement entered
          into by ATS.

          The requirements of subparagraphs (B), (C) and (D) of this paragraph
          (xv) shall be complied with at the effectiveness of such Registration
          Statement, each closing under any underwriting or similar agreement as
          and to the extent required thereunder and from time to time as may
          reasonably be requested by a majority in value (based on the proposed
          public offering price) of Registrable Securities being sold pursuant
          to such Registration Statement, all in a manner consistent with
          customary industry practice;

          (xvi)   make available to a representative of the holders of not less
     than a majority in value (based on the proposed public offering price) of
     the Registrable Securities, any underwriter participating in any
     disposition pursuant to such Registration Statement, and any attorney or
     accountant retained by such holders or underwriter, all  financial,
     corporate and other records and documents of ATS, and cause ATS' officers,
     directors and employees to supply all information reasonably requested by
     any such representatives, underwriter, attorney or accountant in connection
     with the registration, with respect to each at such time or times as the
     person requesting such information shall reasonably determine; provided,
     however, that any records, information or documents that are designated by
     ATS in writing as confidential shall be kept confidential by such persons
     unless disclosure of such records, information or documents is required by
     court or administrative order or applicable law or otherwise becomes public
     without breach of the provisions of this paragraph;

          (xvii)  otherwise use its reasonable business efforts to comply with
     the Securities Act, the Exchange Act, all applicable rules and regulations
     of the Commission and all applicable state blue sky and other securities
     laws, rules and regulations, and make generally available to its security
     holders, earnings statements satisfying the provisions of Section 11(a) of
     the Securities Act, no later than thirty (30) days after the end of any 12-
     month period (or ninety (90) days if the end of such 12-month period
     coincides with the end of a fiscal quarter or fiscal year, respectively) of
     ATS (A) commencing at the end of any month in which Registrable Securities
     are sold to underwriters in an underwritten offering, or, if not sold to
     underwriters in such an offering, (B) beginning with the first month
     commencing after the effective date of the Registration Statement, which
     statements shall cover said 12-month periods;

          (xviii) cooperate and assist in any filings required to be made with
     the NASD and in the performance of any due diligence investigation by any
     underwriter (including any "qualified independent underwriter" that is
     required to be retained in accordance with the rules and regulations of the
     NASD);

          (xix)   promptly prior to the filing of any document which is to be
     incorporated by reference into the Registration Statement or the Prospectus
     (after the initial filing of the Registration Statement) provide copies of
     such document to the selling holders of Registrable Securities, the
     underwriters, if any, and their respective counsel, make ATS'
     representatives available for discussion of such document with such persons
     and make such changes in such document prior to the filing thereof as any
     such persons may reasonably request; and

                                      -7-
<PAGE>
 
          (xx)    cooperate and assist in any filings required to be made with
     the FCC, including without limitation the obtaining of any consents of the
     FCC required in connection with any change in control of ATS.

          (d) Restrictions on Registration.  Anything in Section 1 to the
              ----------------------------                               
contrary notwithstanding, ATS shall not be required to register Registrable
Securities on behalf of any Stockholder to the following extent and subject to
the following conditions:  in the case of any registration initially proposed to
be filed solely on behalf of ATS if, in the opinion of the managing underwriters
of the proposed public offering (a copy of which opinion shall have been
furnished to any Stockholder requesting registration (or each such holder if ATS
has elected not to notify the holders of Registrable Securities pursuant to the
provisions of Section 1(a) because it is not required to include any Registrable
Securities in such registration pursuant to the provisions of this Section)),
such registration (or such portion thereof as may be specified in such opinion)
would adversely affect the proposed public offering price or the plan of
distribution contemplated by the proposed ATS offering, in which event ATS shall
(unless in the opinion of such managing underwriters (a copy of which shall be
similarly furnished) to do so would materially and adversely affect the proposed
public offering price or such plan of distribution)) cause such Registration
Statement to remain in effect and to be phrased in such a manner so that the
Stockholders requesting registration thereunder may, during a period commencing
not less than sixty (60) days or more than ninety (90) days (or such other
period as such managing underwriters may approve as not so adversely affecting
the proposed public offering price or such plan of distribution) after the
closing of the sale to the underwriters pursuant to the original distribution
thereunder, offer and sell under such Registration Statement the Registrable
Securities referred to in the request of registration pursuant to this Section
1.

     (e) Additional Restrictions on Registration.  Anything in this Agreement to
         ---------------------------------------                                
the contrary notwithstanding, ATS shall not be required to file a registration
statement requested pursuant to this Section 1 if ATS has furnished, to the
Stockholders requesting a registration statement to be filed, a certificate
signed by the Chief Executive Officer or the Chief Financial Officer of ATS
stating that in the good faith judgment of the signer of such certificate the
filing of a registration statement would require the disclosure of material
information that ATS has a bona fide business purpose for preserving as
confidential and that is not then otherwise required to be disclosed; provided,
however, that ATS' obligation to use its reasonable business efforts to effect a
registration pursuant to this Section 1 may not be deferred pursuant to this
paragraph (e) for more than ninety (90) days from the date of receipt of a
written request from such Stockholders, and provided further, however, that ATS
shall not utilize this right more than once during any twelve (12) month period
unless the Stockholders requesting such registration have been afforded a
reasonable period (not less than ninety (90) days) during such twelve (12) month
period to effect such registration.

     2.   Conditions to Registration.
          -------------------------- 

     Each Stockholder's right to have Registrable Securities included in any
Registration Statement filed by ATS in accordance with the provisions of Section
1 shall be subject to the following conditions:

          (a) The holders on whose behalf such Registrable Securities are to be
     included shall be required to furnish ATS in a timely manner with all
     information required by the applicable rules and regulations of the
     Commission concerning the proposed method of sale or other disposition of
     such Registrable Securities, the identity of and compensation to be paid to
     any proposed underwriters to be employed in connection therewith, and such
     other information as may be reasonably requested by ATS or its counsel
     properly to prepare and file such Registration Statement in accordance with
     applicable provisions of the Securities Act;

                                      -8-
<PAGE>
 
          (b) If any such holder desires to sell and distribute Registrable
     Securities over a period of time, or from time to time, at then prevailing
     market prices, then any such holder shall execute and deliver to ATS such
     written undertakings as ATS and its counsel may reasonably request in order
     to assure full compliance with applicable provisions of the Securities Act
     and the Exchange Act;

          (c) In the case of any underwritten offering on behalf of the holders
     of Registrable Securities pursuant to the provisions of Section 1(b), the
     managing underwriters shall be subject to the approval of ATS, such
     approval not to be unreasonably withheld, delayed or conditioned;

          (d) In the case of any registration requested pursuant to the
     provisions of Section 1(a), the offering price for any Registrable
     Securities to be so registered shall be no less than for any securities of
     the same class then to be registered for sale for the account of ATS or
     other security holders, unless such Registrable Securities are to be
     offered from time to time based on the prevailing market price;

          (e) Upon receipt of any notice from ATS of the existence of any event
     of the nature referred to in paragraph (iii) of Section 1(c), such holder
     will forthwith discontinue disposition of Registrable Securities until such
     holders receipt of the copies of the supplemented or amended Prospectus
     contemplated by such paragraph, or until it is advised in writing by ATS
     that the use of the Prospectus may be resumed, and has received copies of
     any additional or supplemental filings which are incorporated by reference
     in the Prospectus, and, if so directed by ATS, such holder will deliver to
     ATS (at its expense) all copies, other than permanent file copies then in
     such holder's possession, of the Prospectus covering such Registrable
     Securities current at the time of receipt of such notice; and

          (f) In the event any filing with or consent of the FCC is required,
     cooperate and assist in any such filings, including without limitation
     providing all information required in obtaining any consents of the FCC
     required in connection with any change in control of ATS.

     3.   Indemnification.
          --------------- 

     (a) Indemnification by ATS.  In the event of the registration of any
         ----------------------                                          
Registrable Securities under the Securities Act pursuant to the provisions
hereof, ATS will, to the extent permitted by Applicable Law, indemnify and hold
harmless each Stockholder on whose behalf such Registrable Securities shall have
been registered, its partners, trustees, advisory committee members, directors,
officers, employees, representatives and agents, each underwriter, broker and
dealer, if any, who participates in the offering or sale of such Registrable
Securities, and each other Person, if any, who controls such Stockholder or any
such underwriter, broker or dealer within the meaning of the Securities Act or
the Exchange Act (each such person being hereinafter sometimes referred to as an
"indemnified person"), from and against any Claims, joint or several, to which
such indemnified person may become subject, including without limitation under
the Securities Act, the Exchange Act or any state securities or blue sky law,
insofar as such Claims arise out of or are based upon any untrue statement or
alleged untrue statement of any material fact contained or incorporated by
reference in any Registration Statement or Prospectus or any amendment or
supplement thereto or in any preliminary prospectus, or any document
incorporated by reference therein, or arise out of or based upon the omission or
alleged omission to state therein a material fact required to be stated therein
or necessary to make the statements therein, in light of the circumstances under
which they were made, not misleading, and will reimburse each such indemnified
person for any legal or any other expenses reasonably incurred by such
indemnified person in connection with investigating or defending, settling or
satisfying any such Claim; provided, however, that ATS will not be liable in any
such case to the extent that any such Claim arises out of or is based upon an
untrue statement or alleged untrue statement or omission or alleged omission
made or

                                      -9-
<PAGE>
 
incorporated by reference in the Registration Statement, Prospectus, amendment
or supplement in reliance upon and in conformity with written information
furnished to ATS by such indemnified person specifically stating that it is for
use in preparation thereof. Such indemnity shall remain in full force and effect
regardless of any investigation made by or on behalf of such indemnified person
and shall survive the transfer of such Registrable Securities by such
Stockholder

     (b) Indemnification by Holders of Registrable Securities.  In the event of
         ----------------------------------------------------                  
the registration of any Registrable Securities under the Securities Act pursuant
to the provisions hereof, each Stockholder on whose behalf such Registrable
Securities shall have been registered will, to the extent permitted by
Applicable Law, severally but not jointly, indemnify and hold harmless, ATS,
each director of ATS, each officer of ATS who signs the registration statement,
each underwriter, broker and dealer, if any, who participates in the offering
and sale of such Registrable Securities and each other Person, if any, who
controls ATS or any such underwriter, broker or dealer within the meaning of the
Securities Act or the Exchange Act (each such person including without
limitation ATS being hereinafter sometimes referred to as an "indemnified
person"), against any Claims, joint or several, to which such indemnified person
may become subject, including without limitation under the Securities Act, the
Exchange Act or any state securities or blue sky law, insofar as such Claims
arise out of or are based upon any untrue statement or alleged untrue statement
of a material fact contained or incorporated by reference in any Registration
Statement or Prospectus or any amendment or supplement thereto or any document
incorporated by reference therein, or arise out of or are based upon the
omission or alleged omission to state therein a material fact required to be
stated therein or necessary to make the statements therein, in light of the
circumstances under which they were made, not misleading, provided that such
untrue statement or alleged untrue statement or omission or alleged omission has
been made or incorporated therein in reliance upon and in conformity with
written information furnished to ATS by such Stockholder specifically stating
that it is for use in preparation thereof, and will reimburse each such
indemnified person for any legal or any other expenses reasonably incurred by
ATS or such indemnified person in connection with investigating or defending,
settling or satisfying any such Claim.  Such indemnity shall remain in full
force and effect regardless of any investigation made by or on behalf of such
indemnified person and shall survive the transfer of such Registrable Securities
by such Stockholder.  In no event shall the liability of any such Stockholder
hereunder be greater in amount than the dollar amount of the proceeds received
by such Stockholder upon the sale of the Registrable Securities giving rise to
such indemnification obligation.

     (c) Procedure.  Promptly after receipt by an indemnified party of notice of
         ---------                                                              
the commencement of any action (including any governmental investigation or
inquiry), such indemnified party will, if a claim in respect thereof is to be
made against an indemnifying party, give written notice to such indemnifying
party of the commencement thereof, but the omission so to notify the
indemnifying party will not relieve it from any liability which it may have to
any indemnified party otherwise than pursuant to the provisions of this Section
and then only to the extent such indemnifying party has been prejudiced, or
otherwise adversely affected thereby and in no event shall such failure relieve
the indemnifying party from any other liability which it may have to the
indemnified party.  In case any such action is brought against any indemnified
party, and it notifies an indemnifying party of the commencement thereof, the
indemnifying party will be entitled to participate in, and to the extent that it
may wish, jointly with any other indemnifying party similarly notified, to
assume the defense thereof, with counsel reasonably satisfactory to such
indemnified party, and after notice from the indemnifying party to such
indemnified party, the indemnifying party shall not, except as hereinafter
provided, be responsible for any legal or other expenses subsequently incurred
by such indemnified party in connection with the defense thereof, other than
reasonable cost of investigation.  No indemnifying party will consent to entry
of any judgment or enter into any settlement which does not include as an
unconditional term thereof the giving by the claimant or plaintiff to such
indemnified party of a release from all liability in respect to such Claim.

                                      -10-
<PAGE>
 
     Such indemnified party shall have the right to employ separate counsel in
any such action and to participate in the defense thereof, but the fees and
expenses of such counsel shall be the expense of such indemnified party, unless
(i) the indemnifying party has agreed to pay such fees and expenses, (ii) the
indemnifying party shall have failed to assume the defense of such action or
proceeding or has failed to employ counsel reasonably satisfactory to such
indemnified party in any such action or proceeding, or (iii) the named parties
to any such action or proceeding (including any impleaded parties) include both
such indemnified party and the indemnifying party, and such indemnified party
shall have been advised in writing by counsel that representation of both
parties by the same counsel would be inappropriate due to actual or potential
material differing interests between them (in which case, if such indemnified
party notifies the indemnifying party in writing that it elects to employ
separate counsel at the expense of the indemnifying party, the indemnifying
party shall not have the right to assume the defense of such action or
proceeding on behalf of such indemnified party, it being understood, however,
that the indemnifying party shall not, in connection with any one such action or
proceeding or separate but substantially similar or related actions or
proceedings in the same jurisdiction arising out of the same general allegations
or circumstances, be liable for the fees and expenses of more than one separate
firm of attorneys at any time for such indemnified party and any other
indemnified parties, which firm shall be designated in writing by such
indemnified parties).  The indemnifying party shall not be liable for any
settlement of any such action or proceeding effected without its written
consent, but if settled with its written consent, or if there be a final
judgment for the plaintiff in any such action or proceeding, the indemnifying
party agrees to indemnify and hold harmless such indemnified parties from and
against any loss or liability by reason of such settlement or judgment.

     (d) Contribution.  If the indemnification provided for in this Section or
         ------------                                                         
in Section 4 is unavailable, because prohibited or restricted by Applicable Law,
to a party that would have been an indemnified party under either such Section
in respect of any Claims referred to therein, then each party that would have
been an indemnifying party thereunder shall, in lieu of indemnifying such
indemnified party, contribute to the amount paid or payable by such indemnified
party as a result of such Claims in such proportion as is appropriate to reflect
the relative fault of the indemnifying party on the one hand and such
indemnified party on the other in connection with the statement or omission
which resulted in such Claims, as well as any other relevant equitable
considerations.  The relative fault shall be determined by reference to, among
other things, whether the untrue or alleged untrue statement of a material fact
or the omission or alleged omission to state a material fact relates to
information supplied by the indemnifying party or such indemnified party and the
parties' relative intent, knowledge, access to information and opportunity to
correct or prevent such statement or omission. Notwithstanding the provisions of
this Section, a holder of Registrable Securities shall not, as an indemnified
party, be required to contribute any amount in excess of the amount by which the
total price at which the Registrable Securities sold by such indemnified party
or its Affiliates and distributed to the public were offered to the public
exceeds the amount of any damages which such indemnified party or its Affiliates
have otherwise been required to pay by reason of such untrue or alleged untrue
statement or omission or alleged omission. ATS and each holder of Registrable
Securities agrees that it would not be just and equitable if contribution
pursuant to this Section were determined by pro rata allocation or by any other
method of allocation which does not take account of the equitable considerations
referred to above in this Section.  The amount paid or payable by an indemnified
party as a result of the Claims referred to above in this Section or Section 4
shall include any legal or other expenses reasonably incurred by such
indemnified party in connection with investigation or defending any such action
or claim (which shall be limited as provided in Section 3(c) if the indemnifying
party has assumed the defense of any such action in accordance with the
provisions thereof). The obligations of each Stockholder under this Section 3(d)
are several and not joint.

     No person guilty of fraudulent misrepresentation (within the meaning of
Section 11(f) of the Securities Act) shall be entitled to contribution from any
person who was not guilty of such fraudulent misrepresentation.

                                      -11-
<PAGE>
 
     Indemnification or, if appropriate, contribution, similar to that specified
in the preceding provisions of this Section (with appropriate modifications)
shall be given by ATS and each seller of Registrable Securities with respect to
any required registration or other qualification of Registrable Securities under
any Applicable Law other than the Securities Act.

     In the event of any underwritten offering of Registrable Securities under
the Securities Act pursuant to the provisions of Section 1, ATS and each
Stockholder on whose behalf Registrable Securities shall have been registered
agree to enter into an underwriting agreement, in standard form, with the
underwriters, which underwriting agreement may contain additional provisions
with respect to indemnification and contribution in lieu of the provisions of
this Section.

     4.   Exchange Act Registration.
          ------------------------- 

     ATS covenants and agrees that, at its expense, until such time as the
Stockholders no longer hold any Registrable Securities:

          (a) it will, if required by law, maintain a registration statement
     (containing such information and documents as the Commission shall specify)
     with respect to the Common Stock of ATS under Section 12(b) or 12(g) of the
     Exchange Act effective and will file on time such information, documents
     and reports as the Commission may require or prescribe for companies whose
     stock has been registered pursuant to said Section 12(b) or 12(g);

          (b) it will, if a registration statement with respect to the Common
     Stock of ATS under Section 12(b) or Section 12(g) is effective, upon the
     request of any Stockholder, make whatever other filings with the Commission
     or otherwise make generally available to the public such financial and
     other information as any Stockholder may deem necessary or advisable in
     order to enable him to be permitted to sell shares of Common Stock pursuant
     to the provisions of Rule 144 promulgated under the Securities Act (or any
     successor rule or regulation thereto or any statute hereafter adopted to
     replace or to establish the exemption that is now covered by said Rule
     144);

          (c) it will, if not subject to Section 13 to 15(d) of the Exchange
     Act, upon the request of any Significant Stockholder made on or after
     December 31, 1998, make publicly available the information specified in
     subparagraph (c)(2) of said Rule 144, and will take such further action as
     any Stockholder may reasonably request, all to the extent required from
     time to time to enable such Stockholder to sell Registrable Securities
     without registration under the Securities Act within the limitation of the
     exemptions provided by said Rule 144 (or any successor rule or regulation
     to either thereof or any statute hereafter adopted to replace or to
     establish the exemption that is now covered by said Rule 144); and

          (d) it will, if not subject to Section 13 to 15(d) of the Exchange
     Act, upon the request of any Stockholder agree to furnish to a prospective
     purchaser (subject to the execution by it of a confidentiality agreement in
     form, scope and substance reasonably satisfactory to ATS) the information
     specified in subparagraph (d)(4) of Rule 144A promulgated under the
     Securities Act (or any successor rule or regulation thereto or any statute
     hereafter adopted to replace or to establish the exemption that is now
     covered by said Rule 144A), and will take such further action as any
     Stockholder may reasonably request, all to the extent required from time to
     time to enable such Stockholder to sell Registrable Securities without
     registration under the Securities Act within the limitation of the
     exemptions provided by said Rule 144A (or any successor rule or regulation
     thereto or any statute hereafter adopted to replace or to establish the
     exemption that is now covered by said Rule 144A); and

                                      -12-
<PAGE>
 
          (e) upon the request of any Stockholder, it will deliver to such
     Stockholder a written statement as to whether it has complied with the
     requirements of this Section.

     ATS represents and warrants that any such registration statement or any
information, documents or report filed with the Commission in connection
therewith or any information so made public shall not contain any untrue
statement of a material fact or omit to state a material fact required to be
stated therein or necessary in order to make the statements contained therein,
in light of the circumstances under which they were made, not misleading.  ATS
shall, to the extent permitted by Applicable Law, indemnify and hold harmless
(or to the extent the same is not enforceable, make contribution to) the
Stockholders, their partners, trustees, advisory committee members, officers,
directors, employees, representatives and agents, each broker, dealer or
underwriter (within the meaning of the Securities Act) acting for any
Stockholder in connection with any offering or sale by such Stockholder of
Registrable Securities or any person, firm or corporation controlling (within
the meaning of Section 15 of the Securities Act or Section 20 of the Exchange
Act) such Stockholder or any such broker, dealer or underwriter from and against
any and all Claims arising out of or resulting from any breach of the foregoing
representation or warranty, all on terms and conditions comparable to those set
forth in Section 3; provided, however, that ATS shall be given written notice
and an opportunity to participate in, and, to the extent that it may wish, to
assume on terms and conditions comparable to those set forth in Section 3, the
defense thereof.

     5.   Termination of Registration Obligations.
          --------------------------------------- 

     The obligations of ATS to any Stockholder with respect to its rights of
registration provided for in Section 1:

          (a) shall continue until such time as Sullivan & Worcester LLP, or
     other counsel for ATS knowledgeable in securities law matters and
     reasonably acceptable to such Stockholder has delivered a written opinion
     to ATS and such Stockholder to the effect that either (i) such Stockholder
     has no further obligation to comply with the registration requirements of
     the Securities Act or to deliver a prospectus meeting the requirements of
     Section 10(a)(3) of the Securities Act in connection with further sales by
     such Stockholder of Registrable Securities or (ii) such Stockholder is able
     to sell all of the Registrable Securities owned by him pursuant to the
     provisions of Rule 144 under the Securities Act in a three-month period;
     and

          (b) shall not apply to any proposed sales or other dispositions or
     offers therefor of any Registrable Securities with respect to which
     Sullivan & Worcester LLP, or other counsel for ATS knowledgeable in
     securities law matters and reasonably acceptable to such Stockholder has
     delivered a written opinion to ATS and the Stockholder proposing to make
     such offer, sale or other disposition to the effect that such Stockholder
     has no obligation to comply with the registration requirements of the
     Securities Act or to deliver a prospectus meeting the requirements of
     Section 10(a)(3) of the Securities Act.

     Any such opinion (a copy of which shall be addressed to such Stockholder)
shall be reasonably satisfactory (in the case of such opinion as to form, scope
and substance) to such Stockholder.

     ATS shall, to the extent permitted by Applicable Law, indemnify and hold
harmless each Stockholder, its partners, trustees, advisory committee members,
officers, directors, employees, representatives and agents and each person, if
any, who controls such Stockholder within the meaning of either Section 15 of
the Securities Act or Section 20 of the Exchange Act, against any Claims to
which such Stockholder, or such partners, trustees, advisory committee members,
officers, directors, employees, representatives and agents or

                                      -13-
<PAGE>
 
controlling persons may become subject under the Securities Act, the Exchange
Act or otherwise, insofar as such Claims arise out of or are based upon the
failure to register the Registrable Securities because of the invocation by ATS
of the provisions of this Section under the Securities Act, all on terms and
conditions comparable to those set forth in Section 3; provided, however, that
ATS shall be given written notice and an opportunity to participate in, and to
the extent that it may wish, to assume, on terms and conditions comparable to
those set forth in Section 3, the defense thereof.

     The indemnification and contributions provisions of Sections 3 and 4 and
this Section, and the obligations of each Stockholder pursuant to the provisions
of Section 9, shall survive any termination of ATS' obligations pursuant to this
Section.

     6.   Registration Rights of Others.
          ----------------------------- 

     ATS represents and warrants that it has not previously entered into any
agreement with respect to its securities granting any registration rights to any
Person.

     7.   Mergers, etc.
          ------------ 

     In addition to any other restrictions on mergers, consolidations and
reorganizations contained in the Restated Certificate of Incorporation, by-laws
or agreements of ATS, ATS covenants and agrees that it shall not, directly or
indirectly, enter into any merger, consolidation, sale of all or substantially
all of its assets or business, liquidation, dissolution or reorganization in
which ATS shall not be the surviving corporation unless the surviving
corporation shall, prior to such merger, consolidation or reorganization, agree
in a writing to as  sume all of the obligations of ATS under this Agreement, and
for that purpose references hereunder to "Registrable Securities" shall be
deemed to include the securities which such holders would be entitled to receive
in exchange for Registrable Securities pursuant to any such merger,
consolidation, sale of all or substantially all of its assets or business,
liquidation, dissolution or reorganization.

     8.   Annual and Quarterly Reports; Other Information.
          ----------------------------------------------- 

     ATS will deliver to each Stockholder so long as such Stockholder holds any
Registrable Securities:

          (a) as soon as practicable after the end of each fiscal year and each
     quarter, audited annual and unaudited consolidated quarterly financial
     statements of ATS, including a consolidated balance sheet, a consolidated
     statement of operations, and a consolidated statement of cash flow, for
     such year or quarter, all prepared in accordance with generally accepted
     accounting principles;

          (b) as soon as available, copies of all documents filed with the
     Commission; and

          (c) such other financial and other information as may, from time to
     time, be reasonably requested by any Significant Stockholder.

     9.   Lock-Up Agreement.
          ----------------- 

     Each Stockholder (other than any Stockholder who is not a director and
owns, at such time, 2% or less of all of the Common Stock) agrees that, if
required in connection with the contemplated offering by the managing
underwriter, (a) it and the Restricted Securities shall be bound by any "lock-
up" or other agreement between ATS and any underwriter of Common Stock (or other
equity securities of ATS) which may be entered into in connection with each
underwritten public offering of the Common Stock (or other equity securities of
ATS) so long as the "lock-up" period does not exceed ninety (90) days (or such
longer period (not exceeding 

                                      -14-
<PAGE>
 
one hundred and eighty (180) days) in connection with the initial underwritten
public offering of Class A Common Stock as the managing underwriters shall have
requested) following the commencement of the public offering, and (b) it will
execute such agreements or other documents as may be reasonably requested by any
such underwriter in order to evidence its agreement set forth in this Section.

     10.  Withdrawals.
          ----------- 

     Any Stockholder may at any time withdraw any request made pursuant to
Section 1 for registration of its Registrable Securities; provided, however,
that to the extent that such withdrawal or withdrawals result in a termination
of any offering proposed to be made pursuant to Section 1, ATS shall be deemed
to have consummated such offering for purposes of Section 1 unless such
Stockholder(s) agree to reimburse ATS for all Registration Expenses incurred by
ATS in connection with such terminated offering.  Notwithstanding anything in
the foregoing provisions of this Section to the contrary, the provisions of this
Section shall not be applicable in the event that any such withdrawal or
withdrawals resulting in such termination is or are effected on account of (a)
ATS' failure to disclose any material fact required to be disclosed in the
registration statement or any prospectus relating to such offering or (b) any
material adverse change in ATS, its business, assets or condition (financial or
other).

     11.  Definitions.
          ----------- 

     As used herein, unless the context otherwise requires, the terms (or any
variant in the form thereof) set forth in this Agreement shall have the
respective meanings so set forth.  Terms defined in the singular shall have a
comparable meaning when used in the plural, and vice versa, and the reference to
                                                ---- -----                      
any gender shall be deemed to include all genders.  Unless otherwise defined or
the context otherwise clearly requires, terms for which meanings are provided in
this Agreement shall have such meanings when used in each agreement, notice,
certificate, communication, opinion or other document executed or required to be
executed pursuant hereto or thereto or otherwise delivered, from time to time,
pursuant hereto or thereto.

     "AFFILIATE" of any Person shall mean any Person which, directly or
indirectly, owns or controls, is under common ownership or control with, or is
owned or controlled by, such Person.  A Person shall be deemed to be "controlled
by" any other Person if such other Person possesses, directly or indirectly,
power to direct or cause the direction of the management or policies of such
Person or the disposition of its assets or property, whether by stock, equity or
other ownership, contract, arrangement or understanding, or otherwise.

     "AGREEMENT" is defined in the first paragraph.

     "APPLICABLE LAW" shall mean any Law of any Authority, whether domestic or
foreign, including without limitation all federal and state Laws, to which the
Person in question is subject or by which it or any of its business or
operations is subject or any of its property is bound.

     "ARS" is defined in the first Whereas clause.

     "ARS AGREEMENT" is defined in the first Whereas clause.

     "ATS" is defined in the first paragraph.

     "AUTHORITY" shall mean any governmental or quasi-governmental authority,
whether executive, legislative, judicial, administrative or other, or any
combination thereof, including without limitation any federal, state,
territorial, county, municipal or other government or governmental or quasi-
governmental

                                      -15-
<PAGE>
 
agency, arbitrator, board, body, branch, bureau or comparable agency or Entity,
commission, corporation, court, department, instrumentality, mediator, panel,
system or other political unit or subdivision or other Entity of any of the
foregoing, whether domestic or foreign.

     "CLAIMS" shall mean, with respect to any Person, any and all debts,
liabilities, obligations, losses, damages, deficiencies,  assessments and
penalties of or against such Person, together with all Legal Actions, pending or
threatened, claims and judgments of whatever kind and nature relating thereto,
and all fees, costs, expenses and disbursements (including without limitation
reasonable attorneys' and other legal fees, costs and expenses) relating to any
of the foregoing.

     "COMMON STOCK", "CLASS A COMMON", "CLASS B COMMON" or "CLASS C COMMON",
shall mean those respective securities described in the Restated Certificate of
Incorporation of ATS.

     "COMMISSION" shall mean the Securities and Exchange Commission or any
successor Authority.

     "EXCLUDED OFFERING" shall mean (a) an offering relating solely to dividend
reinvestment plans or stock option or other employee benefit plans, (b) any
merger, consolidation or acquisition, (c) any exchange or tender offer, whether
with existing security holders of ATS or any other Person, or (d) a firm
underwritten offering relating solely to convertible securities or units
consisting of securities senior to Common Stock and warrants, options and rights
to acquire Common Stock in which the managing underwriters shall have objected
to the inclusion of any Registrable Securities.

     "ENTITY" shall mean any corporation, firm, unincorporated organization,
association, partnership, a trust (inter vivos or testamentary), an estate of a
deceased, insane or incompetent individual, business trust, joint stock company,
joint venture or other organization, entity or business, whether acting in an
individual, fiduciary or other capacity, or any Authority.

     "EQUITY AGREEMENT" shall mean any one of (i) the ARS Agreement, (ii) the
ATS Stock Purchase Agreement; (iii) the Gearon Agreement and (iv) any other
agreements approved from time to time by Board of Directors of ATS pursuant to
which Common Stock of ATS may be issued.  "EQUITY AGREEMENTS" shall mean all of
the foregoing agreements.

     "EVENT" shall mean the existence or occurrence of any act, action,
activity, circumstances, condition, event, fact, failure to act, omission,
incident or practice, or any set or combination of any of the foregoing.

     "EXCHANGE ACT" shall mean the Securities Exchange Act of 1934, and the
rules and regulations of the Commission thereunder, all as from time to time in
effect, or any successor law, rules or regulations, and any reference to any
statutory or regulatory provision shall be deemed to be a reference to any
successor statutory or regulatory provision.

     "FCC" shall mean the Federal Communications Commission or any successor
Authority.

     "GEARON AGREEMENT" shall mean the Agreement and Plan of Merger, dated as of
November 21, 1997, by and among ATS, American Tower Systems, Inc., Gearon & Co.,
Inc. and J. Michael Gearon, Jr.

     "GEARON STOCKHOLDERS" shall mean the parties who received ATS Class A
Common Stock in exchange for their capital stock in Gearon & Co., Inc. pursuant
to terms and provisions of the Gearon Agreement.  All registration decisions of
the Gearon Stockholders under this Agreement shall be made by the

                                      -16-
<PAGE>
 
holders of not less than a majority in value (based on the proposed public
offering) of the Registrable Securities held by such Gearon Stockholders.

     "LAW"  shall mean any (a) administrative, judicial, legislative or other
action, code, consent decree, constitution, decree, directive, enactment,
finding, law, injunction, interpretation, judgment, order, ordinance, policy
statement, proclamation, promulgation, regulation, requirement, rule, rule of
law, rule of public policy, settlement agreement, statute, or writ of any
Authority, domestic or foreign; (b) the common law, or other legal precedent; or
(c) arbitrator's, mediator's or referee's award, decision, finding or
recommendation.

     "LEGAL ACTION" shall mean, with respect to any Person, any and all
litigation or legal or other actions, arbitrations, counterclaims,
investigations, proceedings, requests for material information by or pursuant to
the order of any Authority or suits, at law or in arbitration, equity or
admiralty, whether or not purported to be brought on behalf of such Person,
affecting such Person or any of such Person's business, property or assets.

     "NASD" shall mean the National Association of Securities Dealers, Inc.

     "NASDAQ" shall mean the automatic quotation system of NASD.

     "ORIGINAL ARS AGREEMENT" is defined in the first Whereas clause.

     "PERSON" shall mean any natural individual or any Entity.

     "PROSPECTUS" shall mean each prospectus included in any Registration
Statement, as amended or supplemented by any prospectus supplement with respect
to the terms of the offering of any portion of the Registrable Securities
covered by the Registration Statement and by all other amendments and
supplements to the prospectus, including each preliminary prospectus and post-
effective amendments and all material incorporated by reference in such
prospectus.

     "REGISTRABLE SECURITIES" shall mean (a) all shares of Class A Common Stock
acquired by any of the Stockholders (i) pursuant to any of the Equity
Agreements, or (ii) directly or indirectly through one or more such conversions
or exchanges, upon the exercise of conversion or exchange provisions set forth
in other securities of ATS issued pursuant to the provisions of any of the
Equity Agreements, or pursuant to the redemption or repurchase of any such
securities, and (b) all shares of Common Stock of whatever series or class or
other equity securities of ATS derived from the Registrable Securities, whether
as a result of merger, consolidation, stock split, stock dividend, stock
distribution, stock combination, recapitalization or similar event.

     "REGISTRATION EXPENSES" shall mean all (or where appropriate any one or
more) of the following:

          (a)  all registration, filing and listing fees;

          (b)  fees and expenses of compliance with securities or blue sky laws
     (including without limitation reasonable fees and disbursements of counsel
     for the underwriters or selling holders in connection with blue sky and
     state securities qualifications of the Registrable Securities under the
     laws of such jurisdictions as the managing underwriters or the holders of
     not less than a majority in value (based on the proposed public offering
     price) of the Registrable Securities being sold may designate);

          (c)  printing (including without limitation expenses of printing or
     engraving certificates for the Registrable Securities in a form eligible
     for deposit with Depositary Trust Company and otherwise

                                      -17-
<PAGE>
 
     meeting the requirements of any securities exchange on which they are
     listed and of printing Prospectuses), word processing, messenger, telephone
     and delivery expenses;

          (d)  fees and disbursements of counsel for ATS, and reasonable fees
     and disbursements of counsel for the underwriters and for the selling
     holders of the Registrable Securities in accordance with the provisions of
     Section 1(c)(xiv) (subject to any provisions to the contrary in this
     Agreement);

          (e)  fees and disbursements of all independent public accountants of
     ATS (including without limitation the expenses of any annual or special
     audit and "cold comfort" letters required by the provisions of this
     Agreement);

          (f)  fees and disbursements of underwriters (excluding discounts,
     commissions or fees of underwriters), selling brokers, dealer managers or
     similar securities industry professionals relating to the distribution of
     the Registrable Securities or legal expenses of any Person other than ATS,
     the underwriters and the selling holders;

          (g)  securities act liability insurance if ATS so desires or if the
     underwriters or the holders of not less than a majority in value (based on
     the proposed public offering price) of the Registrable Securities being
     sold so require;

          (h)  fees and expenses of other Persons, including any experts,
     retained by ATS;

          (i)  fees and expenses incurred in connection with the listing of the
     Registrable Securities on each securities exchange on which securities of
     the same class are then listed;

          (j)  fees and expenses associated with any NASD filing required to be
     made in connection with any Registration Statement, including, if
     applicable, the fees and expenses of any "qualified independent
     underwriter" (and its counsel) that is required to be retained in
     accordance with the rules and regulations of the NASD;

          (k)  ATS' internal expenses (including without limitation all salaries
     and expenses of its officers and employees performing legal or accounting
     duties); and

          (l)  all other costs and expenses normally associated with the
     issuance and sale of newly issued public securities.

     "REGISTRATION STATEMENT" shall mean any registration statement of ATS which
covers Registrable Securities pursuant to the provisions of this Agreement,
including the Prospectus, amendments, including post-effective amendments to
such registration statement, and supplements to such Prospectus and all exhibits
and all material incorporated by reference in such registration statement.

     "SECURITIES ACT" shall mean the Securities Act of 1933, and the rules and
regulations of the Commission thereunder, all as from time to time in effect, or
any successor law, rules or regulations, and any reference to any statutory or
regulatory provision shall be deemed to be a reference to any successor
statutory or regulatory provision.

     "SIGNIFICANT STOCKHOLDER" shall mean any Stockholder, or group of
Stockholders acting together, which owns not less than the following percentage
or amount of Common Stock:

                                      -18-
<PAGE>
 
          (a)  if ATS is not then subject to Section 13 or 15(d) of the Exchange
     Act, (i) shares of Common Stock with a market value (based on the proposed
     public offering price if the Common Stock is not, at the time, publicly
     traded) of not less than $25,000,000, or (ii) 15.38% of the outstanding
     shares of Common Stock (on a fully diluted basis);

          (b)  if ATS is then so subject to Section 13 or 15(d) of the Exchange
     Act, shares of Common Stock with a market value of not less than
     $10,000,000; provided, however, that notwithstanding the foregoing, in the
     event ATS is, at the time of any request made pursuant to the provisions of
     Section 1(b), eligible to file a Registration Statement on Form S-3 (or any
     successor form) with respect to the proposed disposition of the Registrable
     Securities with respect to which such request has been made, and such form
     is acceptable to the holders making such request, the minimum market value
     of the Registrable Securities shall be not less than $5,000,000; and

          (c)  J. Michael Gearon, Jr. so long as he holds not less than fifty
     percent (50%) of the shares of Registrable Securities received by him
     pursuant to the consummation of the Gearon Agreement and proposes to
     register shares of Registrable Securities with a market value of not less
     than $10,000,000.

     "STOCKHOLDERS" shall mean those persons who executed this Agreement or who
hereafter become parties to this Agreement by executing a counterpart hereof,
and is further defined in Section 12(a).

     "SUBSIDIARY" shall mean, with respect to any Person, any Entity a majority
of the capital stock ordinarily entitled to vote for the election of directors,
or if no such voting stock is outstanding a majority of the equity interests, of
which is owned directly or indirectly by such Person or any Subsidiary of such
Person.

     12.  Miscellaneous.
          ------------- 

     (a) Assignment; Successors and Assigns.  In the event that ATS shall be
         ----------------------------------                                 
merged with, or consolidated into, any other Entity or in the event that it
shall sell and transfer substantially all of its assets to another Entity, the
terms of this Agreement shall inure to the benefit of, and be assumed by, the
Entity resulting from such merger or consolidation, or to which ATS' assets
shall be sold and transferred.  Anything in this Agreement to the contrary
notwithstanding, the term "Stockholders" as used in this Agreement shall be
deemed to include the holders from time to time of any of the Registrable
Securities, whether or not they become parties to this Agreement, except for
holders who have acquired Registrable Securities in connection with an offering
registered under the Securities Act or pursuant to sales made in accordance with
Rule 144 (or any successor rule or regulation or statute in substitution
therefor).  The rights to cause ATS to register Registrable Securities pursuant
to Section 1 may be assigned in connection with any transfer or assignment by a
holder of Registrable Securities; provided, however, that (i) such transfer may
otherwise be effected in accordance with applicable securities laws and (ii)
such transfer is effected in compliance with the restrictions on transfer
contained in any agreement between ATS and such holder.  ATS' obligations under
this Agreement shall not be assigned, and its duties under this Agreement shall
not be delegated, except as provided in the first sentence of this Section.
Nothing in this Agreement expressed or implied is intended to and shall not be
construed to confer upon or create in any Person (other than the parties hereto
and their permitted successors and assigns) any rights or remedies under or by
reason of this Agreement, including without limitation any rights to enforce
this Agreement.

     (b) Specific Performance; Other Rights and Remedies.  Each party recognizes
         -----------------------------------------------                        
and agrees that the other parties' remedies at law for any breach of the
provisions of this Agreement would be inadequate and agrees that for breach of
such provisions, each such party shall, in addition to such other remedies as
may be available to it at law or in equity or as provided in this Agreement, be
entitled to injunctive relief and to enforce its rights by an action for
specific performance to the extent permitted by Law.  Each party hereby waives
any 

                                      -19-
<PAGE>
 
requirement for security or the posting of any bond or other surety in
connection with any temporary or permanent award of injunctive, mandatory or
other equitable relief. Nothing herein contained shall be construed as
prohibiting any party from pursuing any other remedies available to it for such
breach or threatened breach, including without limitation the recovery of
damages.

     (c) Expenses.  Each party shall pay its own expenses incident to the
         --------                                                        
negotiation, preparation, performance and enforcement of this Agreement
(including all fees and expenses of its counsel, accountants and other
consultants, advisors and representatives for all activities of such persons
undertaken pursuant to this Agreement), except to the extent otherwise
specifically set forth in this Agreement.

     (d) Entire Agreement.  This Agreement constitutes the entire agreement
         ----------------                                                  
among the parties with respect to the subject matter hereof and supersedes all
prior agreements, arrangements, covenants, promises, conditions, understandings,
inducements, representations and negotiations, expressed or implied, oral or
written, among them as to such subject matter.

     (e) Waivers; Amendments.  Notwithstanding anything in this Agreement to the
         -------------------                                                    
contrary, amend ments to and modifications  of this Agreement may be made,
required consents and approvals may be granted, compliance with any term,
covenant, agreement, condition or other provision set forth herein may be
omitted or waived, either generally or in a particular instance and either
retroactively or prospectively with, but only with, the written consent of ATS
(to the extent it is entitled to the benefit thereof) and (i) with respect to
the rights of the Stockholders set forth in Section 1(b), including without
limitation the definition of Significant Stockholder (except with respect to
clause (c) of the definition of Significant Stockholder which cannot be amended
or modified without the prior written consent of J. Michael Gearon, Jr., or his
respective successors or assigns), two-thirds (2/3) in interest of the
Stockholders, and (ii) with respect to all other rights and obligations of the
Stockholders, a majority in interest of the Stockholders (to the extent they are
entitled to the benefit thereof or obligated thereby); provided, however, that
(x)  in the event any such amendment, modification, consent, approval or waiver
shall be for the benefit of or materially adverse to less than all of the
Stockholders, such amendment, modification, consent, approval or waiver shall
require a majority in interest of those Stockholders who are not so benefitted
or who are so materially adversely affected and (y) ATS may from time to time
amend this Agreement solely to add Stockholders to this Agreement, subject only
to the approval of the Board of Directors in accordance with Section 6.

     (f) Notices.  All notices and other communications which by any provision
         -------                                                              
of this Agreement are required or permitted to be given shall be given in
writing and shall be (a) mailed by first-class or express mail, postage prepaid,
(b) sent by telex, telegram, telecopy or other form of rapid transmission,
confirmed by mailing (by first class or express mail, postage prepaid) written
confirmation at substantially the same time as such rapid transmission, or (c)
personally delivered to the receiving party (which if other than an individual
shall be an officer or other responsible party of the receiving party).  All
such notices and communications shall be mailed, sent or delivered as follows:

     If to American Tower Systems Corporation, at

               116 Huntington Avenue
               Boston, MA 02116
               Attention: Steven B. Dodge, Chairman of the Board and Chief
               Executive Officer
               Facsimile: (617) 375-7575

          with a copy to:

               Sullivan & Worcester LLP
               One Post Office Square
               Boston, MA  02109
               Attention:  Norman A. Bikales, Esq.
               Facsimile:  (617) 338-2880

                                      -20-
<PAGE>
 
     If to any Stockholder, at his address as it appears on the stock records of
     ATS, and/or to such other person(s), telex or facsimile number(s) or
     address(es) as the party to receive any such communication or notice may
     have designated by written notice to the other parties.

     (g) Severability.  If any provision of this Agreement shall be held or
         ------------                                                      
deemed to be, or shall in fact be, invalid, inoperative, illegal or
unenforceable as applied to any particular case in any jurisdiction or
jurisdictions, or in all jurisdictions or in all cases, because of the
conflicting of any provision with any constitution or statute or rule of public
policy or for any other reason, such circumstance shall not have the effect of
rendering the provision or provisions in question invalid, inoperative, illegal
or unenforceable in any other jurisdiction or in any other case or circumstance
or of rendering any other provision or provisions herein contained invalid,
inoperative, illegal or unenforceable to the extent that such other provisions
are not themselves actually in conflict with such constitution, statute or rule
of public policy, but this Agreement shall be reformed and construed in any such
jurisdiction or case as if such invalid, inoperative, illegal or unenforce  able
provision had never been contained herein and such provision reformed so that it
would be valid, operative and enforceable to the maximum extent permitted in
such jurisdiction or in such case, except when such reformation and construction
could operate as an undue hardship on either party, or constitute a substantial
deviation from the general intent and purpose of such party as reflected in this
Agreement.  The parties shall endeavor in good faith negotiations to replace the
invalid, inoperative, illegal or unenforceable provisions with valid, operative,
legal and enforceable provisions the economic effect of which comes as close as
possible to that of the invalid, inoperative, illegal or unenforceable
provisions.

     (h) Counterparts.  This Agreement may be executed in several counterparts,
         ------------                                                          
each of which shall be deemed an original, but all of which together shall
constitute one and the same instrument, binding upon all the parties hereto.  In
pleading or proving any provision of this Agreement, it shall not be necessary
to produce more than one of such counterparts.

     (i) Section Headings.  The headings contained in this Agreement are for
         ----------------                                                   
reference purposes only and shall not in any way affect the meaning or
interpretation of this Agreement.

     (j) Governing Law.  The validity, interpretation, construction and
         -------------                                                 
performance of this Agreement shall be governed by the applicable laws of the
United States of America and the domestic substantive laws of the State of New
York without giving effect to any choice or conflict of laws provision or rule
that would cause the application of domestic substantive laws of any other
jurisdiction.

     (k) Further Acts.  Each party agrees that at any time, and from time to
         ------------                                                       
time, before and after the consummation of the transactions contemplated by this
Agreement, it will do all such things and execute and deliver all such
agreements, assignments, instruments, other documents and assurances, as any
other party or its counsel reasonably deems necessary or desirable in order to
carry out the terms and conditions of this Agreement and the transactions
contemplated hereby or to facilitate the enjoyment of any of the rights created
hereby or to be created hereunder.

                                      -21-
<PAGE>
 
     IN WITNESS WHEREOF, the parties have executed or caused to be executed
this Agreement as of January 22, 1998.

                      American Tower Systems Corporation


                      By:__________________________________
                            Name:  Steven B. Dodge
                            Title: Chairman of the Board and Chief  Executive
                                   Officer


                      ______________________________________
                      Steven B. Dodge
 

                      Thomas S. Dodge Irrevocable Trust


                      By:______________________________________
                            Name:
                            Title:


                      Kristen A. Dodge Irrevocable Trust


                      By:______________________________________
                            Name:
                            Title:


                      Benjamin P. Dodge Irrevocable Trust


                      By:______________________________________
                            Name:
                            Title:


                      _________________________________________
                      Norman A. Bikales


                      _________________________________________
                      Alan L. Box


                      _________________________________________
                      Charlton H. Buckley

                                      -22-
<PAGE>
 
                      Chase Equity Associates, L.P.
                      By Chase Capital Partners, General Partner


                      By:______________________________________
                            Name:
                            Title:


                      _________________________________________
                      James S. Eisenastein


                      _________________________________________
                      Arthur C. Kellar


                      _________________________________________
                      Michael B. Milsom


                      _________________________________________
                      Steven J. Moskowitz


                      _________________________________________
                      Joseph L. Winn


                      _________________________________________
                      Thomas H. Stoner


                      Thomas H. Stoner and Bessemer Trust Company,
                      Trustees of Ruth H. Spencer Irrevocable Trust


                      By:______________________________________


                      Bessemer Trust Company, Trustee of
                      Thomas H. Stoner Irrevocable Trust,


                      By:______________________________________
                            Name:
                            Title:

                                      -23-
<PAGE>
 
                      _________________________________________
                      Katharine E. Stoner

                      _________________________________________
                      Ruth Rochelle Stoner


                      _________________________________________
                      Thomas Stoner, Jr.


                      _________________________________________
                      Theodore A. Stoner


                      _________________________________________
                      Katharine E. Stoner, Trustee of
                      Alden Ellsworth Stoner 30 Trust


                      _________________________________________
                      Katharine E. Stoner, Trustee of
                      Lavonne Elizabeth Ellsworth 21 Trust


                      Bessemer Trust Company, Trustee of
                      Alden Elizabeth Stoner 35 Trust
 
 
                      By:______________________________________
                            Name:
                            Title:

                      Katharine and Thomas Stoner Foundation


                      By:______________________________________
                            Name:
                            Title:


                      Thomas H. Stoner Charitable Remainder Unitrust
                      dated May 3, 1993


                      By:______________________________________
                            Name:
                            Title:

                                      -24-
<PAGE>
 
                      Gearon Stockholders:


                      _________________________________________
                                J. Michael Gearon, Jr.
 
                      The 1997 Gearon Family Trust


                      _________________________________________
                       By: J.  Michael Gearon, Sr., Trustee

                      _________________________________________
                                 Dan King Brainard
 
                      _________________________________________
                                  Jeff Ebihara

                      _________________________________________
                                  Doug Wiest

                      _________________________________________


                      _________________________________________
 

                      _________________________________________
 

                                      -25-
<PAGE>
 
                      American Tower Corporation Stockholders:


                      _________________________________________
                                  Fred R. Lummis

                      Clear Channel Communications, Inc.

                      By:______________________________________
                           Name:  Randall Mays
                           Title: Chief Financial Officer

                      Chase Manhattan Capital Corporation

                      By:______________________________________
                           Name:  Matthew Lori
                           Title: Principal


                      _________________________________________


                      _________________________________________
 
 
                      _________________________________________


                      _________________________________________
 

                      _________________________________________


                      _________________________________________
 

                      _________________________________________
 

                                      -26-

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 5
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-END>                               JUN-30-1998
<CASH>                                          63,716
<SECURITIES>                                         0
<RECEIVABLES>                                   13,874
<ALLOWANCES>                                       661
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<CURRENT-ASSETS>                                82,138 
<PP&E>                                         356,883
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<CURRENT-LIABILITIES>                          381,554 
<BONDS>                                        300,524
                                0
                                          0
<COMMON>                                           785
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<SALES>                                              0
<TOTAL-REVENUES>                                23,082
<CGS>                                                0
<TOTAL-COSTS>                                   24,291
<OTHER-EXPENSES>                                13,541
<LOSS-PROVISION>                                   230
<INTEREST-EXPENSE>                               7,472
<INCOME-PRETAX>                                 21,366
<INCOME-TAX>                                     2,949
<INCOME-CONTINUING>                             21,366
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<CHANGES>                                            0
<NET-INCOME>                                    19,799
<EPS-PRIMARY>                                   (0.35)
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</TABLE>


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