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.

External links

• AT&T corporate website
• AT&T Executive bios
• Ketupa – AT&T profile
• The Bell System Memorial - comprehensive company and technical history website run by David Massey
• July 2005 IEEE Article
• Yahoo! – AT&T Corp. Company Profile
• Unnatural Monopoly: Critical Moments in the Development of the Bell System Monopoly by Adam D. Thierer