The Franklin Center is a 60-story supertall skyscraper in the Loop neighborhood of downtown Chicago. Completed in 1989 as the AT&T Corporate Center to consolidate the central region headquarters of the American Telephone & Telegraph Company (AT&T), it stands at a height of 1,007 ft (307 m) and contains 1.7 million sq ft (160,000 m2) of floor space. It is located two blocks east of the Chicago River and northeast of the Willis Tower with a main address of 227 West Monroe Street and an alternate address of 100 South Franklin Street.