AT&T Communications

AT&T, founded as Bell Telephone Company in 1875 by Alexander Graham Bell, Thomas Watson, and Gardiner Greene Hubbard, is the world’s largest telecommunications company and the second largest provider of mobile telephone services. The company is headquartered in Dallas, Texas. In 1899 AT&T became the parent company after the American Bell Telephone Company sold its assets to its subsidiary and the company rebranded itself as AT&T in 1994.