AT&T Corporation

AT&T Corporation, originally the American Telephone and Telegraph Company, is the subsidiary of AT&T Inc. that provides voice, video, data, and Internet telecommunications and professional services to businesses, consumers, and government agencies. During the Bell System's long history, AT&T was at times the world's largest telephone company, the world's largest cable television operator, and a regulated monopoly. At its peak in the 1950s and 1960s, it employed one million people and its revenue ranged between US$3 billion in 1950[2] ($36.7 billion in present-day terms[3]) and $12 billion in 1966[4] ($104 billion in present-day terms[3]). In 2005, AT&T was purchased by Baby Bell and former subsidiary SBC Communications for more than $16 billion ($22.2 billion in present-day terms[3]). SBC then changed its name to AT&T Inc. Today, AT&T Corporation continues to exist as the long distance subsidiary of AT&T Inc., and its name occasionally shows up in AT&T press releases.[5]