American Tower
AMT
#285
Rank
$80.30 B
Marketcap
$171.49
Share price
-2.87%
Change (1 day)
-7.04%
Change (1 year)

American Tower is an American operator of wireless communication equipment. The company has more than 170,000 transmission systems for data transmission and communication, mostly masts, in 17 countries worldwide.

American Tower - 10-Q quarterly report FY


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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

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

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 September 30, 1999.

[_]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 Identification No.)
incorporation or organization)

116 Huntington Avenue Boston, Massachusetts 02116
(Address of principal executive offices)

Telephone Number (617) 375-7500
(Registrant's telephone number, including area code)

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 November 1, 1999
- --------------------- ------------------
<S> <C>
Class A Common Stock......................................... 144,500,686 shares
Class B Common Stock......................................... 8,778,644 shares
Class C Common Stock......................................... 2,422,804 shares
------------------
Total........................................................ 155,702,134 shares
==================
</TABLE>

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AMERICAN TOWER CORPORATION

INDEX

Page No.
--------

PART I. FINANCIAL INFORMATION

Item 1. Unaudited Condensed Consolidated Financial Statements

<TABLE>
<S> <C>
Condensed Consolidated Balance Sheets
September 30, 1999 and December 31, 1998................................ 3
Condensed Consolidated Statements of Operations
Three and Nine Months Ended September 30, 1999 and 1998................. 4
Condensed Consolidated Statements of Cash Flows
Nine Months Ended September 30, 1999 and 1998........................... 5
Notes to Condensed Consolidated Financial Statements..................... 6

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

Item 3. Quantitative and Qualitative Disclosures About Market Risk......... 23
</TABLE>

PART II. OTHER INFORMATION

<TABLE>
<C> <S> <C>
Item 1. Legal Proceedings................................................. 24
Item 2. Changes in Securities and Use of Proceeds......................... 24
Item 6. Exhibits and Reports on Form 8-K.................................. 24
Signatures........................................................ 26
</TABLE>

2
PART I. FINANCIAL INFORMATION

ITEM 1. UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

AMERICAN TOWER CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS--UNAUDITED
(In thousands, except share data)

<TABLE>
<CAPTION>
September 30, December 31,
1999 1998
------------- ------------
<S> <C> <C>
ASSETS
CURRENT ASSETS:
Cash and cash equivalents.......................... $ 41,711 $ 186,175
Accounts receivable, net of allowance for doubtful
accounts of $2,308 and $1,230, respectively....... 38,818 15,506
Prepaid and other current assets................... 9,397 4,065
Inventories........................................ 7,123
Costs in excess of billings on uncompleted
contracts......................................... 9,402 1,344
Deferred income taxes.............................. 495 495
Due from CBS Corporation........................... 12,593
---------- ----------
Total current assets............................. 119,539 207,585
---------- ----------
PROPERTY AND EQUIPMENT, net......................... 892,245 449,476
GOODWILL AND OTHER INTANGIBLE ASSETS, net........... 1,275,807 718,575
NOTES RECEIVABLE.................................... 72,156 7,585
DEPOSITS AND OTHER LONG-TERM ASSETS................. 133,113 9,406
INVESTMENTS......................................... 14,695 298
DEFERRED INCOME TAXES............................... 113,003 109,418
---------- ----------
TOTAL............................................... $2,620,558 $1,502,343
========== ==========
LIABILITIES AND STOCKHOLDERS' EQUITY
CURRENT LIABILITIES:
Current portion of long-term debt.................. $ 2,653 $ 1,652
Accounts payable................................... 15,497 6,696
Accrued expenses................................... 24,015 11,347
Accrued tower construction costs................... 20,142 16,099
Accrued interest................................... 3,653 1,132
Billings in excess of costs on uncompleted
contracts......................................... 11,246 6,610
Accrued separation expenses........................ 5,058
Due to CBS Corporation............................. 45,127
Accrued acquisition purchase price................. 353 21,914
---------- ----------
Total current liabilities........................ 77,559 115,635
---------- ----------
LONG-TERM DEBT...................................... 375,987 279,477
OTHER LONG-TERM LIABILITIES......................... 3,369 1,429
---------- ----------
Total liabilities................................ 456,915 396,541
---------- ----------
MINORITY INTEREST IN SUBSIDIARIES................... 5,909 4,116
---------- ----------
COMMITMENTS AND CONTINGENCIES
REDEEMABLE CLASS A COMMON STOCK:
$.01 par value, 336,250 shares issued and
outstanding; at estimated redemption value of
$29.56 per share................................ 9,940
---------- ----------
STOCKHOLDERS' EQUITY:
Preferred Stock; $0.01 par value; 20,000,000
shares authorized; no shares issued or
outstanding.......................................
Class A Common Stock; $.01 par value; 500,000,000
shares authorized; 144,466,550 and 96,291,111
shares issued and outstanding, respectively....... 1,445 963
Class B Common Stock, $.01 par value; 50,000,000
shares authorized; 8,811,940 and 9,001,060 shares
issued and outstanding, respectively.............. 88 90
Class C Common Stock, $.01 par value; 10,000,000
shares authorized; 2,422,804 and 3,002,008 shares
issued and outstanding, respectively.............. 24 30
Additional paid-in capital......................... 2,239,881 1,140,365
Accumulated deficit................................ (82,176) (49,702)
---------- ----------
Total............................................ 2,159,262 1,091,746
Less: Treasury stock (76,403 shares at cost)..... (1,528)
---------- ----------
Total stockholders' equity....................... 2,157,734 1,091,746
---------- ----------
TOTAL............................................... $2,620,558 $1,502,343
========== ==========
</TABLE>

See notes to condensed consolidated financial statements.

3
AMERICAN TOWER CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS--(UNAUDITED)
(In thousands, except per share data)

<TABLE>
<CAPTION>
Three Months Nine Months
Ended September 30, Ended September 30,
-------------------- --------------------
1999 1998 1999 1998
--------- --------- --------- ---------
<S> <C> <C> <C> <C>
REVENUES:

Rental and management............. $ 37,768 $ 17,719 $ 94,640 $ 39,305
Services.......................... 22,710 6,572 54,948 18,848
Video, voice, data and Internet
transmission..................... 7,061 6,187 19,512 13,332
--------- --------- --------- ---------
Total revenues.................. 67,539 30,478 169,100 71,485
--------- --------- --------- ---------

OPERATING EXPENSES:
Operating expenses excluding
depreciation and amortization,
tower separation and corporate
general and administrative
expenses:
Rental and management........... 17,917 8,087 43,488 18,417
Services........................ 17,110 4,677 41,795 15,412
Video, voice, data and Internet
transmission................... 5,478 3,928 14,242 8,697
Depreciation and amortization..... 35,111 17,243 92,919 32,998
Tower separation expense.......... 159 12,616
Corporate general and
administrative expense........... 2,255 1,561 6,395 3,186
--------- --------- --------- ---------
Total operating expenses........ 77,871 35,655 198,839 91,326
--------- --------- --------- ---------
LOSS FROM OPERATIONS............... (10,332) (5,177) (29,739) (19,841)
--------- --------- --------- ---------

OTHER INCOME (EXPENSE):
Interest expense.................. (5,958) (7,121) (17,497) (17,023)
Interest income and other, net.... 3,162 4,451 13,899 6,283
Minority interest in net
(earnings) losses of
subsidiaries..................... (158) (66) (79) (255)
--------- --------- --------- ---------
TOTAL OTHER INCOME (EXPENSE)....... (2,954) (2,736) (3,677) (10,995)
--------- --------- --------- ---------
LOSS BEFORE INCOME TAXES AND
EXTRAORDINARY LOSSES.............. (13,286) (7,913) (33,416) (30,836)
INCOME TAX BENEFIT................. 195 1,955 942 4,934
--------- --------- --------- ---------
LOSS BEFORE EXTRAORDINARY LOSSES... (13,091) (5,958) (32,474) (25,902)
EXTRAORDINARY LOSS ON
EXTINGUISHMENT OF DEBT, NET OF
INCOME TAX BENEFIT OF $921........ (1,382)
EXTRAORDINARY LOSS ON REDEMPTION OF
INTERIM PREFERRED STOCK, NET OF
INCOME TAX BENEFIT OF $5,000...... (7,510) (7,510)
--------- --------- --------- ---------
NET LOSS........................... $ (13,091) $ (13,468) $ (32,474) $ (34,794)
========= ========= ========= =========

BASIC AND DILUTED NET LOSS PER
COMMON SHARE AMOUNTS--
Loss Before Extraordinary
Losses........................... $ (.08) $ (.06) $ (.22) $ (.37)
Extraordinary Losses.............. (.07) (.13)
--------- --------- --------- ---------
NET LOSS........................... $ (.08) $ (.13) $ (.22) $ (.50)
========= ========= ========= =========
WEIGHTED AVERAGE NUMBER OF COMMON
SHARES OUTSTANDING................ 155,625 104,621 147,588 70,103
========= ========= ========= =========
</TABLE>


See notes to condensed consolidated financial statements.

4
AMERICAN TOWER CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS--UNAUDITED
(In thousands)

<TABLE>
<CAPTION>
Nine Months Ended
September 30,
--------------------
1999 1998
--------- ---------
<S> <C> <C>
CASH FLOWS PROVIDED BY OPERATING ACTIVITIES.............. $ 56,561 $ 2,878
--------- ---------
CASH FLOWS USED FOR INVESTING ACTIVITIES:
Payments for purchase of property and equipment and
construction in progress.............................. (173,864) (76,291)
Payments for acquisitions, net of cash acquired........ (361,256) (140,384)
Advances of notes receivable........................... (64,488) (11,100)
Proceeds from notes receivable......................... 538 2,000
Deposits, investments and other long-term assets....... (137,693) (2,140)
--------- ---------
Cash used for investing activities....................... (736,763) (227,915)
--------- ---------
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings under notes payable and credit facilities... 95,357 205,500
Repayment of notes payable and credit facilities....... (143,233) (136,954)
Net proceeds from equity offerings and stock options... 634,293 707,399
Cash transfers to CBS Corporation...................... (50,000) (221,665)
Net proceeds from Interim Preferred Stock.............. 300,000
Redemption of Interim Preferred Stock.................. (303,117)
Contributions from ARS................................. 56,954
Cash transfers to ARS.................................. (51,856)
Distributions to minority interest..................... (315) (314)
Deferred financing costs............................... (364) (22,052)
--------- ---------
Cash provided by financing activities.................... 535,738 533,895
--------- ---------
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS..... (144,464) 308,858
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD........... 186,175 4,596
--------- ---------
CASH AND CASH EQUIVALENTS, END OF PERIOD................. $ 41,711 $ 313,454
========= =========
CASH PAID FOR INCOME TAXES............................... $ 1,401 $ 239
========= =========
CASH PAID FOR INTEREST................................... $ 16,006 $ 16,036
========= =========
NON-CASH TRANSACTIONS:
Contribution of property and equipment and other assets
from ARS.............................................. $ 6,488
Issuance of common stock and assumption of options for
acquisitions.......................................... $ 448,037 $ 363,609
Increase in deferred tax assets from corporate
restructuring......................................... $ 135,000
(Decrease) increase in due to CBS Corporation from
estimated remaining tax liabilities................... $ (7,813) $ 131,660
Escrow return -- treasury stock........................ $ 1,528
</TABLE>

See notes to condensed consolidated financial statements.

5
AMERICAN TOWER CORPORATION AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS--UNAUDITED

1. Basis of Presentation and Accounting Policies

The accompanying condensed consolidated financial statements have been
prepared by American Tower Corporation (the Company or American Tower),
without audit, pursuant to the rules and regulations of the Securities and
Exchange Commission (SEC). The financial information included herein is
unaudited; however, the Company believes such information and the disclosures
are adequate to make the information presented not misleading. In addition,
the Company believes such information reflects all adjustments (consisting
only of normal recurring adjustments) that are necessary for a fair
presentation of financial position and results of operations for such periods.
Results of interim periods may not be indicative of results for the full year.
These condensed consolidated financial statements and related notes should be
read in conjunction with the Company's 1998 Annual Report on Form 10-K and
interim reports on Form 10Q for the three month periods ended March 31, 1999
and June 30, 1999 filed with the SEC on March 19, 1999, May 17, 1999 and
August 16, 1999, respectively.

Use of Estimates--The preparation of financial statements in conformity with
generally accepted accounting principles requires management to make estimates
and assumptions that affect the amounts reported in the condensed consolidated
financial statements and accompanying notes. Actual results may differ from
those estimates, and such differences could be material to the accompanying
condensed consolidated financial statements.

Loss Per Common Share--Basic and diluted income or loss per common share
have been determined in accordance with Statement of Financial Accounting
Standards (FAS) No. 128, "Earnings Per Share," whereby basic income or loss
per common share is computed by dividing net income or loss by the weighted
average number of common shares outstanding during the period. Diluted per
share amounts are computed by adjusting the weighted average number of common
shares for dilutive potential common shares outstanding during the period, if
any. In computing diluted per share amounts, the Company uses the treasury
stock method, whereby unexercised options are assumed to be exercised at the
beginning of the period or at issuance, if later. The assumed proceeds are
then used to purchase common shares at the average market price during the
period. Shares outstanding upon the consummation of the ATC Separation (as
defined in note 2 below) are assumed to be outstanding for all periods prior
to June 4, 1998. Shares issuable upon exercise of options have been excluded
from the computation of diluted income or loss per common share as the effect
is anti-dilutive. Had options been included in the computation, shares for the
diluted computation would have increased by approximately 5.0 and 5.4 million
and 4.4 and 4.0 million for the three and nine month periods ended September
30, 1999 and 1998, respectively.

Tower Separation Expense--Tower separation expense consists of one-time
costs incurred in connection with the separation of the Company from its
former parent and includes legal, accounting, financial advisory and consent
solicitation fees.

Recent Accounting Pronouncement--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,
as amended in May 1999 by FAS No. 137. This statement establishes accounting
and reporting standards for derivative instruments. It requires that an entity
recognize all derivatives as either assets or liabilities in the statement of
financial position, and measure those instruments at fair value. The
accounting for changes in the fair value of a derivative (that is, gains and
losses) will depend on the entity's intended use of the derivative and its
resulting designation (as defined in the statement). FAS No. 133, as amended,
is effective for all fiscal quarters of all fiscal years beginning after
January 1, 2000. The Company is currently in the process of evaluating the
impact FAS No. 133 will have on the Company and its consolidated financial
statements.

Reclassifications--Certain reclassifications have been made to the 1998
condensed consolidated financial statements to conform to the 1999
presentation.

6
AMERICAN TOWER CORPORATION AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS--(UNAUDITED)

2. ATC Separation

As disclosed in the Company's 1998 Annual Report on Form 10-K, the Company
was formerly a wholly-owned subsidiary of American Radio Systems Corporation
(ARS) until its spin-off from ARS on June 4, 1998 (the ATC Separation). As
part of the ATC Separation, the Company was required to reimburse CBS
Corporation (CBS) for certain tax liabilities incurred by ARS as a result of
the transaction. As of December 31, 1998 the Company had made estimated tax
payments to CBS of approximately $212.0 million. The Company was also required
to make additional payments to CBS upon the conversion of ARS 7% Convertible
Debentures (the ARS Convertible Debentures) by the holders thereof as these
conversions were expected to increase ARS's ultimate tax liability. In the
third quarter of 1999, the remaining holders of the ARS Convertible Debentures
elected to convert their holdings. Upon such conversion and the completion of
the 1998 ARS tax return, a final calculation of the total tax payments due
from CBS was performed by CBS. Such calculation reflected a refund to the
Company of amounts previously paid of approximately $2.8 million, which is
subject to review by the Company before final settlement. Such amount along
with the Company's previously provided security deposit of $9.8 million are
recorded as "Due from CBS" in the accompanying September 30, 1999 condensed
consolidated balance sheet. The Company continues to be obligated to indemnify
CBS and ARS for certain tax matters affecting ARS prior to the ATC Separation.
As of September 30, 1999, no such matters have been brought to the Company's
attention. See the Company's 1998 Annual Report on Form 10-K and the March 31,
1999 and June 30, 1999 quarterly reports on Form 10-Q for a more detailed
discussion related to the ATC Separation.

3. Significant Customers

For the three and nine month periods ended September 30, 1999, one customer
accounted for approximately 16%, of the Company's consolidated revenues. No
single customer accounted for more than 10% of consolidated revenues during
the three or nine month periods ended September 30, 1998.

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. Cumulative
adjustments to the Company's estimate are recorded in the interim period in
which a change in the estimated annual effective rate is determined.

5. Stockholders' Equity

Redeemable Common Stock: 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 valued at approximately $18.0 million.
Under a put agreement that was executed in connection with the merger, the
sellers had the right to require the Company to purchase, at any time prior to
June 5, 1999, any or all shares of Class A common stock received pursuant to
consummation of the merger for a purchase price equal to the then current
market price. On June 5, 1999, the sellers' right to require the Company to
purchase shares of common stock expired. Accordingly all unsold shares as of
that date (383,750) were reclassified from Redeemable Class A common stock to
common stock and additional paid in capital.

Secondary Public Offering: In February 1999, the Company completed a
secondary public offering of 25,700,000 shares of Class A common stock, $.01
par value per share (including 1,700,000 shares sold by the Company pursuant
to the exercise in full of the underwriters' over-allotment option) at $25.00
per share. Certain selling stockholders sold an additional 1,300,000 shares in
the offering. The Company's net proceeds of the

7
AMERICAN TOWER CORPORATION AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS--(UNAUDITED)

offering (after deduction of the underwriting discount and offering expenses)
were approximately $618.0 million. The Company initially invested the proceeds
in short-term investment grade securities. The Company used such proceeds,
together with borrowings under its existing credit facilities, to fund
acquisitions and construction activities.

Private Placement: In February 1999, the Company consummated the sale of
500,000 shares of Class A common stock to Credit Suisse First Boston
Corporation at $26.31 per share. In connection with such sale, Credit Suisse
First Boston Corporation was granted certain registration rights. The Company
initially invested the proceeds of approximately $13.1 million in short-term
investment grade securities. The Company used such proceeds, together with
borrowings under its existing credit facilities, to fund acquisitions and
construction activities.

Other Changes to Stockholders' Equity: See note 6 of the condensed
consolidated financial statements for issuances of common stock in connection
with the Company's acquisitions consummated during the nine month period ended
September 30, 1999.

6. Acquisitions

General--The acquisitions consummated during the nine month period ended
September 30, 1999 have been accounted for using the purchase method of
accounting. The purchase prices related to these acquisitions have been
allocated to the net assets acquired based on their estimated fair value at
the date of acquisition. The excess of purchase price over the estimated fair
value of the net assets acquired has been recorded as goodwill and other
intangible assets. For certain acquisitions, the condensed consolidated
financial statements reflect the preliminary allocation of purchase prices as
the appraisals related to the net assets acquired have not been finalized. The
Company does not expect any changes in depreciation and amortization, as a
result of such appraisals, to be material to the consolidated results of
operations.

Consummated Transactions

The following provides a general description of the significant transactions
consummated during the nine-month period ended September 30, 1999:

Omni Merger--In February 1999, the Company consummated the Agreement and
Plan of Merger, dated as of November 16, 1998 (the Omni Merger) with
OmniAmerica, Inc. (Omni). Omni owned, managed and constructed multi-use
telecommunications sites for radio and television broadcasting, paging,
cellular, PCS and other wireless technologies and offered nationwide, turn-key
tower construction and installation services. Pursuant to the Omni Merger
agreement, Omni stockholders received 1.1 shares of the Company's Class A
common stock for each share of Omni common stock. In the aggregate, the
Company exchanged approximately 16.8 million shares of Class A common stock
for approximately 15.2 million shares of Omni common stock. In addition, the
Company assumed $96.6 million of debt, of which $94.3 million (inclusive of
interest and fees) was paid at closing. The Company also assumed certain Omni
employee stock options which were converted into options to purchase
approximately 1.0 million shares of the Company's Class A common stock. Total
merger consideration was approximately $462.0 million.

TeleCom Merger--In February 1999, the Company consummated the Agreement and
Plan of Merger, dated as of November 16, 1998 (the TeleCom Merger) with
TeleCom Towers, L.L.C. (TeleCom). Telecom owned or co-owned approximately 271
towers and managed 121 revenue-generating sites in 27 states. Total merger
consideration of approximately $194.6 million included the issuance of 3.9
million shares of Class A common stock, payment of $63.1 million in cash and
the assumption of $48.4 million of debt.


8
AMERICAN TOWER CORPORATION AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS--(UNAUDITED)

Comm Site Merger--In June 1999, the Company consummated the Agreement and
Plan of Merger, dated as of May 13, 1999 (the Comm Site Merger) with Comm Site
International, Inc. (Comm Site). The merger with Comm Site, a company that
specialized in antenna site development and site management, is expected to
expand the Company's presence in the Midwest and Southeast regions of the
United States. Total cash consideration paid by the Company in connection with
the Comm Site Merger was approximately $25.6 million, subject to a closing
balance sheet working capital adjustment, which is expected to be finalized in
the fourth quarter of 1999. The impact of the working capital adjustment is
not expected to be material to the Company's consolidated financial
statements.

Triton PCS Acquisition--In September 1999, the Company consummated the
acquisition of 187 wireless communications towers from Triton PCS, the first
member of the AT&T Wireless Network, for $71.0 million in cash. Five
additional communications towers are expected to be purchased from Triton PCS
in the fourth quarter of 1999 for $1.9 million in cash. The towers are located
in Georgia, North Carolina, South Carolina and Virginia. In addition, the
Company agreed to develop a minimum of 100 build-to-suit towers for Triton PCS
and provide turnkey services to Triton PCS for co-location sites through 2001.

In addition to the above, the Company also consummated a number of other
tower related asset purchases during the nine month period ended September 30,
1999. Total consideration paid in connection with these transactions was
approximately $194.5 million.

The following unaudited pro forma summary for the nine months ended
September 30, 1999 and 1998 presents the condensed consolidated results of
operations as if the 1999 acquisitions discussed above had occurred as of
January 1, 1998 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, 1998
or of results that may occur in the future.

In thousands, except per share data:

<TABLE>
<CAPTION>
Nine Months Nine Months
Ended Ended
September 30, 1999 September 30, 1998
------------------ ------------------
<S> <C> <C>
Revenues.......................... $206,130 $162,702
Loss before extraordinary items... $(43,040) $(48,071)
Net loss.......................... $(43,040) $(56,963)
Basic and diluted net loss per
common share..................... $ (0.28) $ (0.63)
</TABLE>

Since October 1, 1999, the Company has acquired and made investments in
several communication sites and businesses for an aggregate preliminary
purchase price of approximately $59.6 million.

Pending Transactions

The following provides a general description of significant transactions
that are expected to be consummated in the fourth quarter of 1999 and into the
year 2000.

AirTouch Communications Inc.--In August 1999, the Company signed a
definitive agreement with AirTouch Communications, Inc. (AirTouch), a unit of
Vodafone AirTouch PLC, to acquire the rights to approximately 2,100
communications towers through a master sublease agreement. In addition, the
Company will enter into an exclusive three-year build-to-suit agreement that
is expected to produce approximately 400-500 new communications towers. Total
consideration to be paid by the Company in connection with this transaction
includes approximately $800.0 million in cash, plus a five year warrant to
purchase 3.0 million shares of the

9
AMERICAN TOWER CORPORATION AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS--(UNAUDITED)

Company's Class A common stock at $22.00 per share. The cash portion of the
consideration to be paid in connection with this transaction is expected to
come from a combination of current available funds, additional borrowings
under its credit facilities or proceeds from the sale of the Company's
issuance of convertible notes (described in note 8 below). The transaction is
expected to close incrementally, beginning in the first quarter of 2000,
subject to certain conditions.

AT&T transaction--In September 1999, the Company signed a definitive
agreement with AT&T Corp. to purchase 1,942 towers. The towers are located
throughout the United States and were constructed by AT&T for its microwave
operations. In addition, the Company agreed to enter into a build-to-suit
agreement with AT&T Wireless Services at the initial closing of the
transaction that is expected to produce the opportunity to build 1,000 towers.
The purchase price for this transaction is $260.0 million in cash, subject to
adjustment if all towers are not purchased. At the initial closing, AT&T will
enter into a master lease agreement covering all towers in which it conducts
microwave operations. The lease will have an initial term of ten years, and
AT&T will have five, five-year renewal options. AT&T currently uses 468 of
these towers for its microwave operations. It is expected that as many as 50%
of the towers may not be marketable in the near future because of location.
There will be a separate master lease with AT&T Wireless Services for the
build-to-suit towers. The initial term will be ten years, and AT&T will have
three, five-year renewals. The transaction will be closed in stages, subject
to the satisfaction of customary conditions, including the receipt of all
regulatory approvals, beginning in the fourth quarter of 1999 or the first
quarter of 2000.

UNIsite Merger--In June 1999, the Company entered into an Agreement and Plan
of Merger (the UNIsite Merger) with UNIsite, Inc. (UNIsite). UNIsite, whose
primary focus has been tower site management, has recently expanded its scope
of services to include site ownership and development. Presently, UNIsite owns
approximately 400 towers and has an exclusive build-to-suit agreement with a
major wireless communications carrier. Pursuant to the UNIsite Merger
agreement, UNIsite preferred and common stockholders will receive an aggregate
of approximately $165.0 million in cash, subject to working capital and
completed tower closing adjustments. In addition, the Company will assume
approximately $40.0 million in debt. Consummation of the merger is expected to
occur on the earlier of (a) January 31, 2000, or (b) UNIsite owning and
operating 600 wireless communication towers, subject to certain conditions.

TV Azteca Transaction--In September 1999, the Company entered into a letter
of intent with TV Azteca, the owner of a major national television broadcast
network in Mexico, relating to approximately 200 broadcast towers. The Company
agreed to loan up to $120.0 million to that company and to take over
responsibility for marketing and certain maintenance functions for the towers.
The 20-year loan, which may be extended for an additional 20 years, will bear
net interest at approximately 11.0% per annum, subject to certain conditions.
The Company will be entitled to receive 100% of the revenues generated by
third party leases on the towers during the term of the loan. The closing is
subject to certain conditions, including the execution and delivery of
definitive agreements and the receipt of all necessary regulatory approvals.
Subject to satisfaction of those conditions, definitive agreements are
scheduled to be executed in the fourth quarter of 1999.

In connection with the TV Azteca letter of intent, on September 15, 1999,
the Company entered into a six month credit agreement (interim financing)
whereby the Company will advance $60.0 million to TV Azteca. The interim
financing will bear interest at 11.0% payable quarterly, and is partially
collaterized by the American Depository Shares of TV Azteca. As of September
30, 1999 the Company had advanced $32.0 million under the interim financing
agreement. The remaining $28.0 million was advanced in October 1999.

ICG Satellite Services Merger--In August 1999, the Company entered into a
Stock Purchase Agreement with ICG Satellite Services, Inc. (ICGSS) to acquire
a teleport facility and global maritime telecommunications network. Presently,
ICGSS services voice, data internet and compressed video via satellite to
major cruise lines, the U.S. Military, internet-related companies and
international telecommunication customers. Total cash

10
AMERICAN TOWER CORPORATION AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS--(UNAUDITED)
consideration to be paid by the Company in connection with this merger is
approximately $100.0 million. The transaction is expected to close in the
fourth quarter of 1999, subject to the satisfaction of customary conditions.

Watson Acquisition--In July 1999, the Company entered into an agreement to
acquire Watson Communications for $73.0 million in cash. The acquisition
involves 11 wireless and 10 broadcast towers in the San Francisco Bay area and
one teleport containing nine antennas. The teleport covers the full domestic
and the pacific international service region. Among the acquired sites is San
Bruno Mountain, a premiere location within the San Francisco market. The
transaction is expected to close in the fourth quarter of 1999, subject to the
satisfaction of customary conditions.

In addition to the above agreements, the Company is party to various
agreements relating to the acquisition of assets from third parties for an
estimated aggregate cost of approximately $28.2 million. Such transactions are
subject to the satisfaction of customary closing conditions, which are
expected to be met in the last quarter of 1999 or the first quarter of 2000.

7. Business Segments

The Company operates in three business segments; rental and management (RM),
services (Services), and video, voice, data and Internet transmission (VVDI).
The RM segment primarily provides for leasing and subleasing of antennae sites
on multi-tenant towers for a diverse range of wireless communication
industries, including personal communication services, paging, cellular,
enhanced specialized mobile radio, specialized mobile radio and fixed
microwave, as well as radio and television broadcasters. The Services segment
offers a broad range of network development services, including network
design, site acquisition and construction, zoning and other regulatory
approvals, component part sales, tower construction and antennae installation.
The VVDI segment offers transmission services in the New York City to
Washington, D.C. corridor and in Texas.

The accounting policies applied in compiling segment information below are
similar to those described in the Company's 1998 Annual Report filed on Form
10-K and interim reports on Form 10-Q for the quarterly periods ended March
31, 1999 and June 30, 1999, respectively. In evaluating financial performance,
management focuses on Operating Profit (Loss), which excludes depreciation and
amortization, tower separation and corporate general and administrative
expenses. This measure of Operating Profit (Loss) is also before interest
income and other, net, interest expense, minority interest in net (earnings)
losses of subsidiaries and income taxes.

The Company's reportable segments are strategic business units that offer
different services. They are managed separately because each segment requires
different resources, skill sets and marketing strategies. All segments operate
exclusively in the United States. In addition, all reported segment revenues
are generated from external customers, as intersegment revenues are
insignificant.


11
AMERICAN TOWER CORPORATION AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS--(UNAUDITED)
Summarized financial information concerning the Company's reportable
segments as of and for the three and nine months ended September 30, 1999 and
1998, are shown in the following table. The "Other" column below represents
amounts excluded from specific segments such as extraordinary losses, income
taxes, corporate general and administrative expense, tower separation expense,
depreciation and amortization and interest. In addition, "Other" also includes
corporate assets such as cash and cash equivalents, tangible and intangible
assets, and income tax accounts, which have not been allocated to specific
segments (in thousands).

<TABLE>
<CAPTION>
Three Months Ended
September 30, RM Services VVDI Other Total
- ------------------ ---------- -------- ------- --------- ----------
<S> <C> <C> <C> <C> <C>
1999
Revenues................... $ 37,768 $ 22,710 $ 7,061 $ 67,539
Operating Profit (Loss).... $ 19,851 $ 5,600 $ 1,583 $ (40,125) $ (13,091)
Assets..................... $1,630,886 $489,207 $92,229 $ 408,236 $2,620,558
1998
Revenues................... $ 17,719 $ 6,572 $ 6,187 $ 30,478
Operating Profit (Loss).... $ 9,632 $ 1,895 $ 2,259 $ (27,254) $ (13,468)
Assets..................... $ 820,043 $113,829 $72,939 $ 428,943 $1,435,754
<CAPTION>
Nine Months Ended September
30, RM Services VVDI Other Total
- --------------------------- ---------- -------- ------- --------- ----------
<S> <C> <C> <C> <C> <C>
1999
Revenues................... $ 94,640 $ 54,948 $19,512 $ 169,100
Operating Profit (Loss).... $ 51,152 $ 13,153 $ 5,270 $(102,049) $ (32,474)
Assets..................... $1,630,886 $489,207 $92,229 $ 408,236 $2,620,558
1998
Revenues................... $ 39,305 $ 18,848 $13,332 $ 71,485
Operating Profit (Loss).... $ 20,888 $ 3,436 $ 4,635 $ (63,753) $ (34,794)
Assets..................... $ 820,043 $113,829 $72,939 $ 428,943 $1,435,754
</TABLE>

8. Private Notes Placement

On October 4, 1999 the Company completed a private notes placement of $300.0
million principal amount of 6.25% Convertible Notes due 2009 (6.25% Notes),
issued at 100% of their face amount, and $425.5 million principal amount of
2.25% Convertible Notes due 2009 (2.25% Notes), issued at 70.52% of their face
amount. Total net proceeds received from the private placement notes were
approximately $584.0 million. The 6.25% Notes are convertible, at the option
of the holder, into the Company's Class A common stock at a conversion price
of $24.40 per share. The 2.25% Notes are convertible, at the option of the
holder, into Class A common stock at a conversion price of $24.00 per share.
Approximately $368.0 million of the net proceeds from the private placement
notes were used to pay off borrowings under the Company's existing credit
facility. The remaining portion of the proceeds will be used to finance
acquisitions and construction.

On October 20, 1999, the Company filed a registration statement on Form S-3
to register the resale of the 6.25% and the 2.25% Notes by the holders
thereof. Such registration statement was declared effective on November 2,
1999.

12
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. Various factors affect the Company's results and could
cause the Company's actual results to differ materially from those expressed
in any forward-looking statement. Such factors include:

. the outcome of our growth strategy,
. future results of operations,
. liquidity and capital expenditures,
. construction and acquisition activities,
. debt levels and the ability to obtain financing and service debt,
. competitive conditions and regulatory developments in the communications
site and wireless carrier industries,
. projected growth of the wireless communications and wireless carrier
industries,
. dependence on demand for satellites for internet data transmission, and
. general economic conditions.

As the Company was a wholly-owned subsidiary of ARS through June 4, 1998,
the condensed consolidated financial statements for the three and nine months
ended September 30, 1998 may not reflect the results of operations or
financial position of the Company had it been an independent public company
during such periods. Because of the Company's relatively brief operating
history and the large number of recent acquisitions, the following discussion
will not necessarily reveal all significant developing or continuing trends.

The Company is a leading independent owner, operator and developer of
wireless communications towers in the United States. From January 1, 1999
through September 30, 1999, the Company acquired various communications sites
and businesses for an aggregate estimated purchase price of approximately
$948.3 million, which includes cash paid, the assumption of debt and the
issuance of approximately 20.7 million shares of Class A common stock.
Management expects that acquisitions consummated to date and in the future
will have a material impact on future revenues, expenses and results from
operations.

Results of Operations

As of September 30, 1999, the Company owned and/or operated approximately
4,600 communications sites, as compared to approximately 1,900 communications
sites as of September 30, 1998. The acquisitions consummated in 1999 and 1998
have significantly affected operations for the three and nine months ended
September 30, 1999, as compared to the three and nine months ended September
30, 1998. See the notes to the condensed consolidated financial statements for
a description of the acquisitions consummated in 1999 and the Company's Annual
Report on Form 10-K for acquisitions consummated in 1998 and prior.

13
Three months ended September 30, 1999 and 1998 (Dollars in thousands)--
Unaudited

<TABLE>
<CAPTION>
Three months ended Amount of Percentage
September 30,
-------------------- Increase Increase
1999 1998 (Decrease) (Decrease)
--------- --------- ---------- ----------
<S> <C> <C> <C> <C>
Revenues:
Rental and management............ $ 37,768 $ 17,719 $20,049 113%
Services......................... 22,710 6,572 16,138 246%
Video, voice, data and Internet
transmission.................... 7,061 6,187 874 14%
--------- --------- -------
Total revenues................... 67,539 30,478 37,061 122%
--------- --------- -------
Operating Expenses:
Rental and management............ 17,917 8,087 9,830 122%
Services......................... 17,110 4,677 12,433 266%
Video, voice, data and Internet
transmission.................... 5,478 3,928 1,550 39%
--------- --------- -------
Total operating expenses exclud-
ing depreciation and
amortization, tower separation,
and corporate general and admin-
istrative expenses.............. 40,505 16,692 23,813 143%
--------- --------- -------
Depreciation and amortization.... 35,111 17,243 17,868 104%
Tower separation expense......... 159 (159) (100%)
Corporate general and administra-
tive expense.................... 2,255 1,561 694 44%
Interest expense................. 5,958 7,121 (1,163) (16%)
Interest income and other, net... 3,162 4,451 (1,289) (29%)
Minority interest in net earnings
of subsidiaries................. 158 66 92 139%
Income tax benefit............... 195 1,955 (1,760) (90%)
Extraordinary loss on redemption
of interim preferred stock,
net............................. 7,510 (7,510) (100%)
--------- --------- -------
Net loss......................... $ (13,091) $ (13,468) $ (377) (3%)
========= ========= =======
</TABLE>

Rental and Management Revenue

Rental and management revenue for the three months ended September 30, 1999,
was $37.8 million, an increase of $20.0 million from the three months ended
September 30, 1998. The majority of the increase, $18.0 million, is
attributable to revenue generated from acquisitions consummated and/or towers
constructed subsequent to September 30, 1998. The remaining factor
contributing to the additional revenue is an increase in comparable tower
revenue of $2.0 million in the third quarter of 1999 for towers that existed
in the third quarter of 1998.

Services Revenue

Services revenue for the three months ended September 30, 1999, was $22.7
million, an increase of $16.1 million from revenues for the three months ended
September 30, 1998. The primary reason for the increase is due to the $17.5
million of revenue earned in the third quarter of 1999 from operations
acquired in the Omni Merger. The increase from the Omni Merger is offset by a
decrease in revenues generated from the Company's existing services business
of approximately $1.4 million. This decrease is a direct result of the
Company's shift in focus on site acquisition, development and construction of
towers for its own use ("Build-to-Suit") from its previous focus on
development and construction of towers for sale to third parties.

14
Video, Voice, Data and Internet Transmission Revenue

Video, voice, data and Internet transmission (VVDI) revenue for the three
months ended September 30, 1999, was $7.1 million, an increase of $0.9 million
from revenues for the three months ended September 30, 1998. The primary
reason for the increase is attributed to approximately $0.7 million of
revenues earned during the current period as a result of an acquisition that
closed in July of 1999. The remaining component of the increase, $0.2 million,
is due to growth in the overall VVDI business that existed at September 30,
1998.

Rental and Management, Services and VVDI Expenses

Rental and management, Services and VVDI expenses for the three months ended
September 30, 1999, were $17.9 million, $17.1 million and $5.5 million,
respectively, an increase of $9.8 million, $12.4 million and $1.6 million,
respectively, from the three months ended September 30, 1998. The primary
reasons for the increase in these expenses are essentially the same as those
discussed above under each respective revenue segment.

Depreciation and Amortization

Depreciation and amortization for the three months ended September 30, 1999,
was $35.1 million, an increase of $17.9 million from the three months ended
September 30, 1998. A component of the increase is attributable to an increase
in depreciation expense of $7.6 million. This is a direct result of the
Company's purchase, construction and/or acquisition of approximately $547.8
million of property and equipment from October 1, 1998 to September 30, 1999.
The remaining component of the increase is attributable to an increase in
amortization of $10.3 million, resulting from the Company's recording and
amortizing of approximately $668.9 million of goodwill and other intangible
assets related to acquisitions consummated from October 1, 1998 to September
30, 1999.

Tower Separation Expense

The Company completed its separation from ARS in the second quarter of 1998,
and incurred minimal additional expenses related to the separation in the
third quarter of 1998. No additional expenses related to the separation were
incurred in the three month period ended September 30, 1999, or are expected
to occur in the future. See note 1 of the condensed consolidated financial
statements for a description of tower separation expense.

Corporate General and Administrative Expense

Corporate general and administrative expense for the three months ended
September 30, 1999, was $2.3 million, an increase of $0.7 million from the
three months ended September 30, 1998. The majority of the increase is a
result of higher personnel and marketing costs associated with supporting the
Company's expanding revenue base and market position. The remaining component
of the increase is attributed to overall increases to other administrative
expenses.

Interest Expense

Interest expense for the three months ended September 30, 1999, was $6.0
million, a decrease of $1.2 million from the three months ended September 30,
1998. The net decrease is attributable to a decrease in the current period of
approximately $0.8 million of interest incurred in 1998 on outstanding
redeemable preferred stock which was redeemed prior to 1999, coupled with an
increase in interest capitalized during the three month period ended September
30, 1999 as a result of increased construction activity.

15
Interest Income and Other, Net

Interest income and other, net for the three months ended September 30,
1999, was $3.2 million, a decrease of $1.3 million from the three months ended
September 30, 1998. The decrease is primarily related to a decrease in
interest earned on invested cash on hand offset by an increase in interest
earned on notes receivable and security deposits.

Income Tax Benefit

The income tax benefit for the three months ended September 30, 1999 was
$0.2 million, a decrease of $1.8 million from the income tax benefit recorded
for the three months ended September 30, 1998. In addition, the effective
income tax benefit rate for the three months ended September 30, 1999 was 2%,
as compared to an effective income tax benefit rate of 25% for the three
months ended September 30, 1998. The decrease in the tax benefit and the
effective tax benefit rate is due to an increase in nondeductible permanent
items (principally goodwill amortization). The increase in nondeductible
permanent items has occurred as a result of the consummation of several
mergers and acquisitions in 1999 and the latter part of 1998.

Extraordinary Loss on Extinguishment of Debt

The Company incurred an extraordinary loss in 1998 due to the redemption of
its interim preferred stock. There have been no transactions that qualify for
treatment as extraordinary items during the three month period ended September
30, 1999.

16
Nine months ended September 30, 1999 and 1998 (Dollars in thousands)--
Unaudited

<TABLE>
<CAPTION>
Nine Months Ended
September 30, Amount of Percentage
------------------ Increase Increase
1999 1998 (Decrease) (Decrease)
-------- -------- --------- ----------
<S> <C> <C> <C> <C>
Revenues:
Rental and management................ $ 94,640 $ 39,305 $55,335 141%
Services............................. 54,948 18,848 36,100 192%
Video, voice, data and Internet
transmission........................ 19,512 13,332 6,180 46%
-------- -------- -------
Total revenues....................... 169,100 71,485 97,615 137%
-------- -------- -------
Operating Expenses:
Rental and management................ 43,488 18,417 25,071 136%
Services............................. 41,795 15,412 26,383 171%
Video, voice, data and Internet
transmission........................ 14,242 8,697 5,545 64%
-------- -------- -------
Total operating expenses excluding
depreciation and amortization, tower
separation, and corporate general
and administrative expenses......... 99,525 42,526 56,999 134%
-------- -------- -------
Depreciation and amortization........ 92,919 32,998 59,921 182%
Tower separation expense............. 12,616 (12,616) (100%)
Corporate general and administrative
expense............................. 6,395 3,186 3,209 101%
Interest expense..................... 17,497 17,023 474 3%
Interest income and other, net....... 13,899 6,283 7,616 121%
Minority interest in net earnings of
subsidiaries........................ 79 255 (176) (69%)
Income tax benefit................... 942 4,934 (3,992) (81%)
Extraordinary loss on extinguishment
of debt, net........................ 1,382 (1,382) (100%)
Extraordinary loss on redemption of
interim preferred stock, net........ 7,510 (7,510) (100%)
-------- -------- -------
Net loss............................. $(32,474) $(34,794) $(2,320) (7%)
======== ======== =======
</TABLE>

Rental and Management Revenue

Rental and management revenue for the nine months ended September 30, 1999,
was $94.6 million, an increase of $55.3 million from the nine months ended
September 30, 1998. The majority of the increase, $38.2 million, is
attributable to revenue generated from acquisitions consummated and/or towers
constructed subsequent to September 30, 1998. The remaining factor
contributing to the additional revenue is an increase in comparable tower
revenue of $17.1 million in the nine month period ended September 30, 1999 for
towers that existed in the nine month period ended September 30, 1998.

Services Revenue

Services revenue for the nine months ended September 30, 1999, was $55.0
million, an increase of $36.1 million from revenues for the nine months ended
September 30, 1998. The primary reason for the increase is due to the $40.6
million of revenue earned in 1999 from operations acquired in the Omni Merger.
The increase from the Omni Merger is offset by a decrease in revenues
generated from the Company's existing services business of approximately $4.5
million. This decrease is a direct result of the Company's shift in focus on
Build-to-Suit activities from its previous focus on development and
construction of towers for sale to outside customers.

17
Video, Voice, Data and Internet Transmission Revenue

VVDI revenue for the nine months ended September 30, 1999, was $19.5
million, an increase of $6.2 million from revenues for the nine months ended
September 30, 1998. The primary reason for the increase is attributed to an
increase of approximately $4.4 million of revenues earned during the nine
month period September 30, 1999 as a result of the acquisition of Washington
International Teleport which closed in the second quarter of 1998. The
remaining components of the increase are attributed to approximately $0.7
million of revenue generated from an acquisition made in the third quarter of
1999 coupled with a $1.1 million increase in the overall VVDI business
existing at September 30, 1998.

Rental and Management, Services and VVDI Expenses

Rental and management, Services and VVDI expenses for the nine months ended
September 30, 1999, were $43.5 million, $41.8 million and $14.2 million,
respectively, an increase of $25.0 million, $26.4 million and $5.5 million,
respectively, from the nine months ended September 30, 1998. The primary
reasons for the increase in these expenses are essentially the same as those
discussed above under each respective revenue segment.

Depreciation and Amortization

Depreciation and amortization for the nine months ended September 30, 1999,
was $92.9 million, an increase of $59.9 million from the nine months ended
September 30, 1998. A component of the increase is attributable to an increase
in depreciation expense of $22.2 million. This is a direct result of the
Company's purchase, construction and/or acquisition of approximately $547.8
million of property and equipment from October 1, 1998 to September 30, 1999.
The remaining component of the increase is attributable to an increase in
amortization of $37.7 million, resulting from the Company's recording and
amortizing of approximately $668.9 million of goodwill and other intangible
assets related to acquisitions consummated from October 1, 1998 to September
30, 1999.

Tower Separation Expense

The Company completed its separation from ARS in the second quarter of 1998,
and incurred minimal additional expenses related to the separation in the
third quarter of 1998. No additional expenditures related to the separation
were incurred in the nine month period ended September 30, 1999, or are
expected to occur in the future. See note 1 of the condensed consolidated
financial statements for a description of tower separation expense.

Corporate General and Administrative Expense

Corporate general and administrative expense for the nine months ended
September 30, 1999, was $6.4 million, an increase of $3.2 million from the
nine months ended September 30, 1998. The majority of the increase is a result
of higher personnel and marketing costs associated with supporting the
Company's expanding revenue base and market position. Other factors
contributing to the increase include higher costs associated with enhancing
the Company's information technology infrastructure and overall increases in
other administrative expenses.

Interest Expense

Interest expense for the nine months ended September 30, 1999, was $17.5
million, an increase of $0.5 million from the nine months ended September 30,
1998. The net increase is attributable to an increase in the amount of
interest incurred on the Company's outstanding debt obligations of
approximately $5.1 million. This increase was offset by a decrease of
approximately $3.9 million related to interest incurred in 1998 on outstanding
redeemable preferred stock which was redeemed prior to 1999, coupled with an
increase in interest capitalized during 1999 as a result of increased
construction activity.


18
Interest Income and Other, Net

Interest income and other, net for the nine months ended September 30, 1999,
was $13.9 million, an increase of $7.6 million from the nine months ended
September 30, 1998. The increase is primarily related to interest earned on
invested cash on hand, notes receivable and security deposits.

Income Tax Benefit

The income tax benefit for the nine months ended September 30, 1999 was $0.9
million, a decrease of $4.0 million from the nine months ended September 30,
1998. In addition, the effective income tax benefit rate for the nine months
ended September 30, 1999 was 3% as compared to an effective income tax benefit
rate of 16% for the nine months ended September 30, 1998. The decrease in the
tax benefit and the effective tax benefit rate is due to an increase in
nondeductible permanent items (principally goodwill amortization). The
increase in nondeductible permanent items has arisen as a result of the
consummation of several mergers and acquisitions in 1999 and the latter part
of 1998.

Extraordinary Loss on Extinguishment of Debt

The Company incurred extraordinary losses in 1998 due to the write-off of
deferred financing costs in connection with the refinancing of its previous
credit facility and the redemption of its interim preferred stock. There have
been no transactions that qualify for treatment as extraordinary items during
the nine month period ended September 30, 1999.

Liquidity and Capital Resources

The Company's liquidity needs arise from its acquisition-related activities,
debt service, working capital and capital expenditures associated principally
with its construction program. As of September 30, 1999, the Company
maintained approximately $41.7 million in cash and cash equivalents and
working capital of approximately $42.0 million. In addition, the Company has
approximately $483.0 million available under its credit facilities.
Historically, the Company has met its operational liquidity needs with
internally generated funds and has financed the acquisition of tower related
properties and its construction program with a combination of capital funds
from sales of its equity securities and bank borrowings.

For the nine months ended September 30, 1999, cash flows provided by
operating activities were $56.6 million, as compared to cash flows provided by
operating activities of $2.9 million for the nine months ended September 30,
1998. The change is primarily attributable to the favorable cash flow
generated from consummated acquisitions in 1999 and the latter part of 1998.

For the nine months ended September 30, 1999, cash flows used for investing
activities were $736.8 million as compared to $227.9 million for the nine
months ended September 30, 1998. The increase in 1999 is primarily due to an
increase in property and equipment expenditures of approximately $95.6 million
coupled with the increase in cash expended for mergers and acquisitions,
including related escrow deposits, notes receivable and equity investments of
approximately $356.4 million.

For the nine months ended September 30, 1999, cash flows provided by
financing activities were $535.7 million as compared to $533.9 million for the
nine months ended September 30, 1998. The net increase in 1999 is due
principally to a decrease in amounts transferred to CBS, offset by decreases
in borrowings under the Company's credit facilities and proceeds from equity
offerings.

For the nine months ended September 30, 1999, the Company had capital
expenditures, exclusive of fixed assets acquired through acquisitions, of
approximately $173.9 million primarily related to construction activities,
including the completion of approximately 695 towers. The Company's 1999
business plan calls for construction of approximately 1,250 towers including
1,000 towers for its own account at a cost of between $180.0 million and
$200.0 million (exclusive of broadcast towers). Assuming the increase of its
credit facilities as described

19
below, management believes that the Company will have sufficient funds
available to finance current construction plans and pending acquisitions.
However, in the event that the Company was to negotiate more than one
additional major transaction, it would probably require additional financing
either through incurring additional debt or the sale of equity securities.
Such financing or sale of securities may not be available on favorable terms.

Management expects that the consummated acquisitions and current and future
acquisitions and 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 the Company as newly constructed towers will initially decrease
overall liquidity. But, as such sites become fully operational and achieve
higher utilization, they should generate positive cash flow, and, in the long-
term, increase liquidity.

Private Placement Notes: On October 4, 1999 the Company completed a private
placement of $300.0 million principal amount of 6.25% Convertible Notes due
2009 (6.25% Notes), issued at 100% of their face amount, and $425.5 million
principal amount of 2.25% Convertible Notes due 2009 (2.25% Notes), issued at
70.52% of their face amount. Total net proceeds received from the private
placement notes were approximately $584.0 million. The 6.25% Notes are
convertible, at the option of the holder, into the Company's Class A common
stock at a conversion price of $24.40 per share. The 2.25% Notes are
convertible, at the option of the holder, into Class A common stock at a
conversion price of $24.00 per share.

Approximately $368.0 million of the net proceeds from the private placement
notes were used to pay off borrowings under the Company's existing credit
facility. The remaining portion of the proceeds will be used to finance
acquisitions and construction.

Credit Facilities: As of September 30, 1999, the Company had approximately
$378.6 million of debt, of which $368.0 million was outstanding in the form of
term loans and revolving credit facilities. Debt service requires a
substantial portion of the Company's cash flow from operations. Accordingly,
the Company's leverage could make it vulnerable to a downturn in the operating
performance of its tower properties or in economic conditions. The Company
believes that its cash flows from operations will be sufficient to meet its
debt service requirements for interest and scheduled payments of principal
under its existing credit facilities and private placement notes. If such cash
flow were not sufficient to meet such debt service requirements, the Company
might sell equity securities, refinance its obligations or dispose of one or
more of its properties in order to make such scheduled payments. The Company
may not be able to effect any of such transactions on favorable terms.

The Company is in the process of negotiating a new credit facility that
would provide for borrowings of up to $2.0 billion. On a pro forma basis,
giving effect as of September 30, 1999, to all pending acquisitions and the
private placement note offering, the Company would have had aggregate
borrowings under its credit facilities of approximately $1.2 billion and no
available cash. Accordingly, the Company must arrange for additional
borrowings or other external funds to complete its pending transactions. One
of the transactions provides for the forfeiture of a $100.0 million deposit if
the Company fails to close. While the Company believes such negotiations will
be successful, the Company does not know what, if any, changes (including
without limitations interest rate increases or other more restrictive
provisions) the lenders may require in connection with such borrowing limit
increase. Upon the execution of a new credit facility, the Company will be
required to recognize an extraordinary loss on extinguishment of debt. If the
new credit facility is executed in the fourth quarter of 1999, such loss would
be approximately $4.2 million, net of a tax benefit of $2.8 million.

Equity Offerings: During 1999, the Company completed a secondary public
offering and private placement of its securities. See note 5 of the condensed
consolidated financial statements.

ATC Separation: As of September 30, 1999, the Company continues to be
obligated under the ATC Separation agreement for certain tax indemnification
liabilities to CBS Corporation. See note 2 of the condensed consolidated
financial statements.

20
Acquisitions: As of September 30, 1999, the Company was a party to various
agreements relating to the acquisition of assets or businesses from various
third parties. See note 6 of the condensed consolidated financial statements.

Year 2000

The Company is aware of the issues associated with the year 2000 as it
relates to information systems and is currently working to resolve the
potential impact to the Company's operations. The year 2000 issue results from
the fact that many computer programs use only two digits to identify a year in
the date field. These programs were designed and developed without
consideration of the impact of the upcoming change in century.

In December 1998, the Company engaged outside consultants to help it conduct
an extensive review and implement a comprehensive plan to reduce the
probability of operational difficulties due to year 2000 issues. The
comprehensive plan consists of the following phases: (1) awareness phase--
identification of the problem and designing a structure to support the year
2000 efforts; (2) definition of critical processes and systems--a process to
identify those activities critical to the Company and focus the efforts of
year 2000 activities; (3) assessment phase--inventory the Company's systems,
software and equipment, assessing whether they are year 2000 compliant,
prioritizing those systems, software and equipment not compliant and
developing action plans for remediation and or replacement of non-complaint
systems, software and equipment; (4) renovation phase--converting, replacing
or retiring non-compliant systems, software and equipment; (5) validation
phase--testing converted or replaced systems; (6) implementation phase--place
converted or replaced systems into operations; and (7) contingency planning
phase--building a backup plan to be used in the event that the renovation plan
cannot be accomplished. This phase will also include business continuity and
disaster recovery planning for possible year 2000 induced failures on core
business processes. The Company's plan considers both its primary information
systems (financial systems software, network software and equipment, personal
computers, etc.) and other technology and software dependent upon embedded
systems (tower equipment, telephone systems, security systems, etc.).

The Company has completed phases 1 through 5 and is in the process of
completing the remaining two phases for both its primary information systems
and its other systems and equipment with embedded software. These phases are
expected to be completed in the fourth quarter of 1999.

Through September 30, 1999, the Company has not incurred significant costs
related to developing and implementing its year 2000 comprehensive plan. The
remaining costs necessary to complete full implementation of the plan are
estimated to be between $0.3 million and $0.5 million.

Although there can be no assurance that the Company will successfully
complete implementation of its year 2000 comprehensive plan, the project is
currently progressing in accordance with timetables established by the
Company. Although failure to complete implementation on a timely basis may
have material adverse financial and operational impacts on the Company, the
Company believes such failure is not reasonably likely. The possible effects
of unsuccessful implementation of the comprehensive plan include the
following: (i) a temporary inability to process transactions, (ii) a temporary
inability to order supplies or materials, (iii) a temporary inability to
timely process orders and billings, and (iv) a temporary inability to deliver
quality products and services to customers.

The Company's business is dependent upon the systems of various third
parties. With regard to these vendors, the Company is in the process of
assessing their year 2000 readiness based upon communications with each such
vendor. The assessment is expected to be ongoing throughout the fourth quarter
of 1999. The Company believes that a material financial or business risk could
occur if the financial institutions serving the Company or the Company's
utility providers have year 2000 induced failures. The Company understands
that these institutions and providers are cognizant of the year 2000 issues
and are actively working to solve any problems that may arise.

21
The Company believes that its most reasonably likely worst case result
relating to year 2000 would be the failure of certain of its systems with
embedded software, or failure of third party systems on which the Company's
systems rely. Failure of systems or equipment with embedded software within
the Company's VVDI segment could result in temporary disruption to that aspect
of the Company's operations. Although there can be no assurance that these
failures would not have an adverse effect on the Company's business, the
Company believes the effect of such failure would not be material to its
business. If the VVDI operations were inoperable for a one week period due to
year 2000 failures, the estimated lost revenue would be approximately $0.6
million.

Within its rental and management business segment, computer-controlled
devices, such as those found in automatic monitoring and control systems used
for antenna structure lighting, are vulnerable to year 2000 related
malfunctions and may fail, which would create a hazard to air navigation.
Tower owners, such as the Company, are responsible for tower lighting in
compliance with Federal Communications Commission and the Federal Aviation
Administration requirements and the Company intends to take the necessary
steps to address the year 2000 issues; however, the Company may not be
entirely successful.

Currently there are no contingency plans for the potential problems noted
above with the third party vendors, embedded software and lighting systems;
however, the Company has implemented a contingency planning phase for those or
other matters as part of its year 2000 plan. The contingency planning phase is
estimated to be completed in the later part of the fourth quarter of 1999.

Recent Accounting Pronouncement

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, as amended in May 1999 by FAS
No. 137. This statement establishes accounting and reporting standards for
derivative instruments. It requires that an entity recognize all derivatives
as either assets or liabilities in the statement of financial position, and
measure those instruments at fair value. The accounting for changes in the
fair value of a derivative (that is, gains and losses) will depend on the
entity's intended use of the derivative and its resulting designation (as
defined in the statement). FAS No. 133, as amended, is effective for all
fiscal quarters of all fiscal years beginning after January 1, 2001. The
Company is currently in the process of evaluating the impact FAS No. 133 will
have on the Company and its consolidated financial statements.

22
ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

The Company maintains a portion of its cash and cash equivalents in short-
term financial instruments which are subject to interest rate risks. Due to
the relatively short duration of such instruments, fluctuations in interest
rates should not materially affect the Company's financial condition or
results of operations.

The Company is exposed to market risk from changes in interest rates on
long-term debt obligations that impact the fair value of these obligations.
The Company attempts to reduce these risks by utilizing derivative financial
instruments, namely interest rate caps and swaps, pursuant to Company
policies. All derivative financial instruments are for purposes other than
trading.

In October 1999, the Company issued the 6.25% and 2.25% Notes and received
total net proceeds of approximately $584.0 million. Of the total proceeds
received, $368.0 million was used to pay off outstanding debt under the
Company's existing credit facility. In paying off such debt, which accrued
interest based on a variable rate, the Company has substantially reduced its
market risk from changes in interest rates as the interest under the 6.25% and
2.25% Notes accrues based on a fixed rate. The Company does, however, continue
to have $483.0 million available to it under the existing credit facility and
is in the process of negotiating a new $2.0 billion credit facility. The
Company may borrow from its existing facility and if implemented, its new
facility at its discretion. Should the Company elect to borrow, it would
subject itself to market risk as described under this Section in the Company's
Annual Report on Form 10-K.

Except as discussed above, for the three months ended September 30, 1999,
the Company has not incurred any material changes with respect to the interest
rates on long-term debt and interest rate caps and swaps disclosed under this
section in its 1998 Annual Report on Form 10-K and its March 31, 1999 and June
30, 1999 quarterly reports on Form 10-Q. Accordingly, refer to Item 7A in the
Company's Annual Report on Form 10-K for a more detailed discussion.

23
PART II. OTHER INFORMATION

Item 1.--Legal Proceedings.

The Company periodically becomes involved in various claims and lawsuits
that are incidental to its business. In the opinion of management, after
consultation with counsel, there are no matters currently pending which would,
in the event of adverse outcome, have a material impact on the Company's
consolidated financial position, the results of its operations or liquidity.

Item 2.--Changes in Securities and Use of Proceeds.

On October 4, 1999, the Company completed a private placement of $300.0
million principal amount of 6.25% Convertible Notes due 2009, issued at 100%
of their face amount, and $425.5 million principal amount of 2.25% Convertible
Notes due 2009, issued at 70.52% of their face amount, to certain
institutional purchasers pursuant to the exemption from registration provided
by section 4(2) of the Securities Act of 1933, as amended. The 6.25% Notes are
convertible to Class A Common Stock at the option of the holder at a
conversion price of $24.40 per share and the 2.25% Notes are convertible to
Class A Common Stock at the option of the holder at a conversion price of
$24.00.

The net proceeds to the Company from such sale were approximately $584.0
(after deduction of the initial purchaser's discount and estimated offering
expenses). In October 1999, the Company used approximately $368.0 million of
such net proceeds to repay outstanding borrowings under its credit facilities.
The balance was invested in short-term investment grade securities and will be
used to finance acquisitions and construction. None of the expenses paid in
connection with the distribution of the 6.25% Notes or 2.25% Notes 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 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 the filing of the
Company's Registration Statement on Form S-3 (File No. 333-89345) on October
20, 1999.

<TABLE>
<CAPTION>
Exhibit No. Description of Document Exhibit File No.
----------- ----------------------- ----------------
<C> <S> <C>
4.1 Indenture, by and between the Company and The Bank
of New York as Trustee, for the 6.25% Notes, dated
as of October 4, 1999, including form of 6.25%
Note................................................ (*4.1)
4.2 Indenture by and between the Company and The Bank of
New York as Trustee, for the 2.25% Notes, dated as
of October 4, 1999, including the form of 2.25%
Note................................................ (*4.2)
4.3 Form of 6.25% Note (included in Exhibit 4.1)......... Filed as part of Exhibit
4.1(*)
4.4 Form of 2.25% Note (included in Exhibit 4.2)......... Filed as part of Exhibit
4.2(*)
4.5 Registration Rights Agreement, by and between the
Company and the Initial Purchasers named therein,
dated as of October 4, 1999......................... (*4.5)
10.1 Third Amendment to ATS Facility A Loan Agreement,
dated as of July 9, 1999, by and among American
Tower, L.P. (formerly known as American Tower
Systems, L.P.), a Delaware limited partnership
(ATLP), and American Towers, Inc. (formerly known
as American Tower Systems (Delaware), Inc.), a
Delaware corporation (ATI), as borrowers, and
Toronto Dominion (Texas), Inc. as Administrative
Agent, and the Banks parties thereto................ Filed herewith as Exhibit
10.1

</TABLE>

24
<TABLE>
<CAPTION>
Exhibit No. Description of Document Exhibit File No.
----------- ----------------------- ----------------
<C> <S> <C>
10.2 Fourth Amendment to Facility A Loan Agreement and
Consent, dated as of September 29, 1999, by and
among ATLP and ATI, as borrowers, and Toronto
Dominion (Texas), Inc. as Administrative Agent, and
the Banks parties thereto........................... Filed herewith as Exhibit
10.2

10.3 Third Amendment to ATS Facility B Loan Agreement,
dated as of May 27, 1999, by and among ATLP and
ATI, as borrowers, and Toronto Dominion (Texas),
Inc. as Administrative Agent, and the Banks parties
thereto............................................. Filed herewith as Exhibit
10.3

10.4 Fourth Amendment to ATS Facility B Loan Agreement,
dated as of July 9, 1999, by and among ATLP and
ATI, as borrowers, and Toronto Dominion (Texas),
Inc. as Administrative Agent, and the Banks parties
thereto............................................. Filed herewith as Exhibit
10.4

10.5 Fifth Amendment to Facility B Loan Agreement and
Consent, dated as of September 29, 1999, by and
among ATLP and ATI, as borrowers, and Toronto
Dominion (Texas), Inc. as Administrative Agent, and
the Banks parties thereto........................... Filed herewith as Exhibit
10.5

10.6 First Amendment to Parent Loan Agreement, dated as
of July 9, 1999, by and among the Company, as
borrower, and Toronto Dominion (Texas), Inc. as
Administrative Agent, and the Banks parties
thereto............................................. Filed herewith as Exhibit
10.6

10.7 Agreement to Sublease, dated as of August 6, 1999,
by and between Airtouch Communications, Inc., the
other parties named therein as sublessors, the
Company and ATLP.................................... Incorporated by reference to
Exhibit 10.1 from the
Company's Quarterly Report
on form 10-Q for the quarter
ended June 30, 1999

10.8 Stock Purchase Agreement, dated as of August 11,
1999, between ATC Teleports, Inc., ICG Holdings,
Inc. and ICG Satellite Services..................... Incorporated by reference to
Exhibit 10.2 from the
Company's Quarterly Report
on Form 10-Q for the quarter
ended June 30, 1999

10.9 Purchase and Sale Agreement, dated as of September
10, 1999, by and among the Company and AT&T Corp.,
a New York corporation.............................. Incorporated by reference to
Exhibit 10.1 from the
Company's Current Report on
Form 8-K dated September 17,
1999

27 Financial Data Schedule.............................. Filed herewith as Exhibit 27
</TABLE>

(b) Reports on Form 8-K.

1. Form 8-K (Items 5 and 7) filed on July 16, 1999.
2. Form 8-K (Items 5 and 7) filed on September 17, 1999.
3. Form 8-K (Items 5 and 7) filed on September 17, 1999.
4. Form 8-K (Items 5 and 7) filed on September 21, 1999.

25
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: November 15, 1999 ---------------------------------
------------------ Joseph L. Winn
Treasurer & Chief Financial Officer
(Duly Authorized Officer)

By: /s/ Justin D. Benincasa
Date: November 15, 1999 ---------------------------------
----------------- Justin D. Benincasa
Vice President & Corporate
Controller
(Duly Authorized Officer)

26