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2. Toll-free telephone numbers in the North American Numbering ...

   en.wikipedia.org/wiki/Toll-free_telephone...

   Toll-free telephone numbers in the North American Numbering Plan. Toll-free telephone numbers in the North American Numbering Plan have the area code prefix 800, 833, 844, 855, 866, 877, and 888. Additionally, area codes 822, 880 through 887, and 889 are reserved for toll-free use in the future. 811 is excluded because it is a special dialing ...

3. Bell System - Wikipedia

   en.wikipedia.org/wiki/Bell_System

   AT&T (1885–1983) The Bell System was a system of telecommunication companies, led by the Bell Telephone Company and later by the American Telephone and Telegraph Company (AT&T), that dominated the telephone services industry in North America for over 100 years from its creation in 1877 until its antitrust breakup in 1983.

4. AT&T Internet - Wikipedia

   en.wikipedia.org/wiki/AT&T_Internet

   Website. www.att.com /internet /. AT&T Internet is an AT&T brand of broadband internet service. Previously, AT&T Internet was branded as U-verse Internet and bundled with U-verse TV, which was spun off into the newly independent DirecTV in 2021. AT&T Internet plans powered by fiber-optic cable use the AT&T Fiber brand.

5. AT&T - Wikipedia

   en.wikipedia.org/wiki/AT&T

   AT&T Inc. is an American multinational telecommunications holding company headquartered at Whitacre Tower in Downtown Dallas, Texas. [ 4 ] It is the world's third-largest telecommunications company by revenue and the second-largest wireless carrier in the United States behind Verizon but ahead of T-Mobile. [ 5 ]

6. 411 (telephone number) - Wikipedia

   en.wikipedia.org/wiki/411_(telephone_number)

   411 (telephone number) 411 is a telephone number for local directory assistance in Canada and the United States. Until the early 1980s, 411 – and the related 113 number – were free to call in most jurisdictions. In the United States, the service is commonly known as "information", [1] although its official name is "directory assistance".

7. Directory assistance - Wikipedia

   en.wikipedia.org/wiki/Directory_assistance

   Companies requested to have their toll-free number listed, and paid the providers each time their phone number was released to a toll-free directory-assistance caller. In 1999, AT&T applied for permission to discontinue this service, [2] but it remained active until the summer of 2020. An automated disconnection recording now plays when you ...

8. AT&T Corporation - Wikipedia

   en.wikipedia.org/wiki/AT&T_Corporation

   AT&T Communications. 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 company that provided voice, video, data, and Internet telecommunications and professional services to businesses, consumers, and government agencies.

9. AT&T Michigan Headquarters - Wikipedia

   en.wikipedia.org/wiki/AT&T_Michigan_Headquarters

   The AT&T Building (formerly known as the SBC Building, the Ameritech Building and the Michigan Bell Building) was completed for the Michigan Bell Telephone Company in 1919 [1] and expanded in 1928. It is located at 1365 Cass Avenue, and occupies the block bordered by First Street, Cass Avenue, State Street, and Michigan Avenue .