American Tower Corporation Names Jonathan Black Vice President and General Counsel; Michael Milsom Named General Counsel of ATC Teleports.

BOSTON--(BUSINESS WIRE)--June 8, 1999--

American Tower Corporation (NYSE:AMT) announced today that Jonathan R. Black has been named Vice President, General Counsel and Secretary for the Company. Mr. Black most recently served as Vice President and General Counsel of Clean Harbors, Inc. of Braintree, Massachusetts.

In addition, Michael Milsom has been named Vice President and General Counsel of ATC Teleports, Inc., a wholly-owned subsidiary of American Tower which operates satellite transmission facilities serving Internet, video, data and voice traffic. Mr. Milsom has been Vice President and General Counsel for American Tower since its formation in 1998, and prior to that served in that capacity for American Radio Systems Corporation.

Steven B. Dodge, American Tower's Chairman, said, "The rapid growth of this company requires us to deepen and expand our in-house legal resources. Jonathan Black is well-suited to guide us through our intense tower acquisition activity, and to organize the legal support needed for our five regions and 3,400 (and growing) tower sites. His land-use experience will serve us well in the permitting and site issues we face. Further, our substantial commitment to the Teleports division has created the need for its own discrete legal support. Michael Milsom, who has worked with our corporate group in cable television, radio and towers, will be a valuable asset to this unit as it moves toward a leadership position in the field."

American Tower is a leading independent owner, operator and developer of broadcast and wireless communications sites in the United States, and giving effect to pending transactions, operates more than 3,400 towers, including over 70 broadcast towers, in 44 states and the District of Columbia. Based in Boston, the Company has a national footprint with regional hubs in Boston, Atlanta, Chicago, Houston and San Francisco.

ATC Teleports is a leading provider of satellite teleport services. The teleports have more than 75 satellite antennas and terrestrial connections to major cities, with technical operations centers in New York City, Dallas, and Alexandria, Virginia. The teleports provide complete engineering, management, and technical assistance for full-time and occasional-use video, Internet, data and voice applications.

This press release contains "forward-looking statements" concerning future expectations, plans or strategies that involve a number of risks and uncertainties. American Tower wishes to caution readers that certain factors may have affected American Tower's actual results and could cause results for subsequent periods to differ materially from those expressed in any forward-looking statement made by or on behalf of American Tower. Such factors include, but are not limited to (I) substantial capital requirements and leverage principally as a consequence of its ongoing acquisitions and construction activities, (ii) dependence on demand for wireless communications and implementation of digital television, (iii) the success of American Tower's tower construction program and (iv) the successful operational integration of American Tower's business acquisitions. American Tower undertakes no obligation to update forward-looking statements to reflect subsequently occurring events or circumstances.