AT&T™
/ˌeɪ tiː ən ˈtiː/
/ˌeɪ tiː ən ˈtiː/
- the world's largest phone and communications company, providing many international mobile phone and digital services. It was established in the US in 1885 as the 'American Telephone and Telegraph Company' and was bought by SBC Communications in 2005 and called AT&T Inc.