American Tower to Speak at Smith Barney Citigroup Conference

    Business Editors/Telecommunications Writers

    BOSTON--(BUSINESS WIRE)--Jan. 3, 2005--American Tower Corporation (NYSE: AMT) today announced that its Chairman and Chief Executive Officer, Jim Taiclet, and Chief Financial Officer, Brad Singer, are scheduled to speak at the Smith Barney Citigroup Media & Telecommunications Conference in Phoenix, Arizona on Tuesday, January 11, 2005, at 11:05 a.m. Mountain Time (1:05 p.m. Eastern Time). The live audio webcast link and presentation slides will be available on the Company's website, www.americantower.com, on Tuesday, January 11, 2005.

    American Tower is the leading independent owner, operator and developer of broadcast and wireless communications sites in North America. American Tower operates approximately 15,000 sites in the United States, Mexico, and Brazil, including approximately 300 broadcast tower sites. For more information about American Tower Corporation, please visit our website www.americantower.com.

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CONTACT: American Tower Corporation Brad Singer, 617-375-7500 Chief Financial Officer

KEYWORD: MASSACHUSETTS INDUSTRY KEYWORD: ADVERTISING/MARKETING TELECOMMUNICATIONS CONFERENCE CALLS SOURCE: American Tower Corporation

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