American Tower Corporation Announces Construction of Broadcast Towers in Columbia, South Carolina and Norfolk, Virginia.

Business/Technology Editors

BOSTON--(BUSINESS WIRE)--April 10, 2000

American Tower Corporation (NYSE:AMT) announced today it has begun construction on broadcast towers in Columbia, South Carolina and Norfolk, Virginia.

The 1,765-foot Columbia tower will serve Central South Carolina and will be home for many of the market's leading television and radio stations. In Norfolk, American Tower has closed on the purchase of the existing WHRO-TV broadcast tower and has begun construction on a second 1,250-foot tower on the site.

Peter Starke, Vice President of Marketing and Development for the American Tower Broadcast Tower Group, noted, "Demand for a new broadcast tower in the Columbia and Norfolk markets is very strong. Both projects are major multi-tenant broadcast facilities designed to accommodate analog and digital television stations, FM Radio and a full complement of wireless technologies. Broadcasters in both of these markets have clearly seen the benefit of turning over to American Tower the responsibility of designing, building, owning and operating their towers. We appreciate their confidence and trust."

Both towers are being designed and constructed by the Kline Iron and Steel Co., Inc. of Columbia, South Carolina, a subsidiary of American Tower Corp. Each project is slated to be completed in the fall of this year. Including these projects, American Tower has approximately 40 broadcast towers in construction or development and anticipates completing construction on over 20 of these broadcast towers in 2000.

American Tower is the leading independent owner operator and developer of broadcast and wireless communications sites in North America. Giving effect to pending transactions, American Tower operates approximately 10,400 sites in the United States and Mexico, including approximately 300 broadcast tower sites. Of the 10,400 sites, approximately 9,000 are owned or leased towers and approximately 1,400 are managed and lease/sublease sites. Based in Boston, American Tower has regional hub offices in Boston, Atlanta, Chicago, Houston, San Francisco and Mexico City. For more information about American Tower Corporation, please visit our web sites www.americantower.com.

This press release contains "forward-looking statements" concerning future expectations, plans or strategies that involve a number of risks and uncertainties. American Tower Corporation, "the Company", wishes to caution readers that certain factors may have affected the Company'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 the Company. 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, use of satellites for internet data transmission, and implementation of digital television, (iii) the success of the Company's tower construction program and (iv) the successful operational integration of the Company's business acquisitions. The Company undertakes no obligation to update forward-looking statements to reflect subsequently occurring events or circumstances.