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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 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 code in the group NXX for various other purposes.

3. 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]

4. Wide Area Telephone Service - Wikipedia

   en.wikipedia.org/wiki/Wide_Area_Telephone_Service

   Initially 1‑800‑NN2‑XXXX numbers were U.S. intrastate and specific prefixes (such as 1‑800‑387 Toronto and 1‑800‑267 Ottawa) were assigned to Canada. [7] In the 1970s, AT&T's internal routing guides included separate U.S. and Canadian 1-800 exchange maps which looked much like area code maps [ 8 ] as each geographic area code had ...

5. Contact AOL customer support - AOL Help

   help.aol.com/articles/account-management...

   GET. Mail. Call live aol support at. 1-800-358-4860. Get live expert help with your AOL needs—from email and passwords, technical questions, mobile email and more.

6. How AT&T customers can protect themselves in the latest ... - AOL

   www.aol.com/t-customers-protect-themselves...

   800-290-4726 more ways to reach us. Sign in. Mail. 24/7 Help. ... What they did get is metadata — call logs that contain a record of every number AT&T customers called or texted (including ...

7. 1-800-COLLECT - Wikipedia

   en.wikipedia.org/wiki/1-800-COLLECT

   The numerical translation for 1-800-OPERATER (1-800-673-7283) was, at the time, assigned for routing to the MCI network, which capitalized on the large number of spelling errors by connecting those calls to 1-800-COLLECT. After several months, AT&T realized they were inadvertently directing a portion of their business to MCI and terminated the ...

8. North American Numbering Plan - Wikipedia

   en.wikipedia.org/wiki/North_American_Numbering_Plan

   1. International access. 011. List of dialing codes. The North American Numbering Plan ( NANP) is a telephone numbering plan for twenty-five regions in twenty countries, primarily in North America and the Caribbean. This group is historically known as World Zone 1 and has the telephone country code 1. Some North American countries, most notably ...

9. Automatic number identification - Wikipedia

   en.wikipedia.org/wiki/Automatic_number...

   Automatic number identification (ANI) [1] [2] is a feature of a telecommunications network for automatically determining the origination telephone number on toll calls for billing purposes. Automatic number identification was originally created by the American Telephone and Telegraph Company (AT&T) for long distance service in the Bell System ...