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AT&T is an American multinational telecommunications company that traces its origins to the Bell Telephone Company founded by Alexander Graham Bell. It has undergone several mergers, acquisitions, and divestitures, and is now the world's third-largest telecom company by revenue and the second-largest wireless carrier in the U.S.
Learn about the history, assignment, and operation of toll-free telephone numbers in the North American Numbering Plan, which have the area code prefixes 800, 833, 844, 855, 866, 877, and 888. Find out how to call or get a toll-free number in the U.S. or Canada, and what are the special cases and restrictions.
Find out how to get live expert help with your AOL needs, from email and passwords, technical questions, mobile email and more. You can also access 24/7 phone support if you are a paid member by calling 1-800-827-6364.
Learn about the origins, monopoly, and breakup of AT&T, the American Telephone and Telegraph Company. AT&T was the primary telephone company in the US from 1885 to 1982, when it was split into regional and long-distance providers.
Global application services — messaging, electronic data interchange, e-mail, and videoconferencing; Customer management services — network management outsourcing; According to Concert, by August 1995 Concert products encompassed approximately $700 million contracts with 2,000 customers in 40 countries and 800 cities. [12]
AT&T Corporation was an American telecommunications company that provided voice, video, data, and Internet services. It was acquired by SBC Communications in 2005 and dissolved in 2024, leaving AT&T Inc. as its successor.
Sheraton's 800‑325‑3535, one of the notable early adopters in late 1969, was hard-wired into St. Louis area code 314; [6] 1‑800‑HOLIDAY at that time could not be a U.S. number if the 1‑800‑465 prefix was hard-wired to Thunder Bay's area code 807. Any attempt to call a foreign 1‑800 gave a pre-recorded error, "the number you have ...
Southwestern Bell is a subsidiary of AT&T that provides local telephone service in six states. It traces its history to The Missouri and Kansas Telephone Company, founded in 1882, and has undergone several name changes and mergers over the years.