AT&T - Wikipedia
AT&T Inc., an abbreviation for its predecessor's former name, the American Telephone and Telegraph Company, is an American multinational telecommunications holding company …
AT&T Corporation - Wikipedia
AT&T Corporation, an abbreviation for its former name, the American Telephone and Telegraph Company, was an American telecommunications company that provided voice, video, data, …
History of AT&T - Wikipedia
The history of AT&T dates back to the invention of the telephone. The Bell Telephone Company was established in 1877 by Alexander Graham Bell, who obtained the first US patent for the …
AT&T - Simple English Wikipedia, the free encyclopedia
AT&T Inc. (used to be called American Telegraph & Telephone) is the largest provider of both local and long distance fixed telephone services and Internet access in the United States with …
AT&T Communications - Wikipedia
AT&T Communications is a division of AT&T that focuses on mobile phone, broadband, fixed line telephone, home security, network security, and business services. The division houses AT&T …
History and operations of AT&T | Britannica
AT&T Inc., formerly American Telephone and Telegraph Co., U.S. telecommunications corporation. It was established as a subsidiary of Bell Telephone Co. (founded by Alexander …
AT&T’s History of Invention and Breakups - The New York Times
2016年2月13日 · AT&T, once known informally as Ma Bell, is a storied American brand that goes back under a succession of names to the late 19th century, after Alexander Graham Bell …
AT&T Corporation | American Telecom Giant | Britannica Money
2025年1月13日 · AT&T (T) is a Dallas-based holding company that comprises telecommunications and technology subsidiaries and affiliates; its history dates back to 1876 …
AT&T Mobility - Wikipedia
AT&T Mobility, LLC, also known as AT&T Wireless and marketed as simply AT&T, is an American telecommunications company.It is a wholly owned subsidiary of AT&T Inc. and provides …
AT&T Corporation - Simple English Wikipedia, the free …
AT&T Corporation, commonly referred to as AT&T, an abbreviation for its former name, the American Telephone and Telegraph Company, was an American telecommunications …