Definition of AT&T™ from the Oxford Advanced Learner's Dictionary

 

AT&T™

 
BrE
 
; NAmE
 
American Telephone and Telegraph
 
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formerly the largest telephone and communications company in the US, providing many international services. It began in 1885 by running a telephone line from New York to Philadelphia and was one of Americas's best-known companies until it was bought by SBC Communications in 2005.

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