AT&T

AT&T (formerly an abbreviation for American Telephone and Telegraph) Corporation {{nyse|T}} is an American telecommunications company. AT&T provides voice, video, data, and Internet telecommunications and professional services to businesses, consumers, and government agencies. During its long history, AT&T has at times been the world's largest telephone company, the world's largest cable television operator, and a regulated monopoly. At its peak, it employed one million people and its revenue was roughly $300 billion annually in today's dollars. In early 2005, SBC Communications (commonly called one of the "Baby Bells" that was split-off from AT&T itself) began the legal process to purchase its once parent AT&T.

See also

• Bell laboratories
• Telecommunication