The American Telephone and Telegraph Company (AT&T for short) has a long history dating back to Alexander Graham Bell in 1882 in Boston, Massachusetts.
In recent history, the company was known as SBC Communications after the government break-up of the original AT&T in 1983.
SBC purchased AT&T in 2005 and took on their brand, logo, and marketing for the entire company.
In 2006, the company acquired BellSouth.
In 2008, the AT&T corporate office moved from San Antonio to Dallas.
In September 2018, the company announced that it has introduced a suite of blockchain solutions to allow enterprises in various industries to track and manage information more efficiently.
AT&T is currently the largest provider of fixed and mobile telephone services in the US. The company currently serves over 100 million mobile customers.