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The Whitacre Tower, also known as One AT&T Plaza, and formerly known as One Bell Plaza, is a 37-story high-rise in Downtown Dallas, built adjacent to the Akard Street Mall in 1984.

The building is the headquarters for AT&T and Southwestern Bell Telephone, which operates as "AT&T Southwest". It is 580 feet (177 m) tall, the 13th-tallest building

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