AT & T
American Telephone and Telegraph Company
The full form of AT & T is the American telephone and telegraph company. It is a public forum. AT & T was founded on October 5th, 1983 almost 36 years ago. The headquarters of the company is in Whitacre Tower, Dallas, Texas, United States. The area they serve is worldwide with the number of employees 247122 according to 2019 data. The company was formerly known as Southwestern Bell Corporation from 1993 to 1995 and also SBC Communications Inc. from 1995 to 2005. Southwestern Bell Telephone Company was the parent company, a subsidiary of a Bell Telephone Company which was founded by Alexander Graham Bell in 1877.