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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. AT&T Switching Center - Wikipedia

    en.wikipedia.org/wiki/AT&T_Switching_Center

    The AT&T Madison Complex Tandem Office is a 17-story, 79 m (259 ft) building in Los Angeles, California, completed in 1961. With its microwave tower, used through 1993, bringing the overall height to 137 m (449 ft), it is the 29th tallest building in Los Angeles. The building serves 1.3 million phone lines in area code 213, and other Los ...

  4. AT&T - Wikipedia

    en.wikipedia.org/wiki/AT&T

    In March 2024, AT&T confirmed the 2021 leak of contact information for over 7.6 million current users, as well as 65 million former ones. The leaked records may contain "full name, email address, mailing address, phone number, social security number, date of birth, AT&T account number and passcode".

  5. NumberSync - Wikipedia

    en.wikipedia.org/wiki/NumberSync

    NumberSync is an AT&T service that allows some postpaid wireless customers to use one telephone number to send and receive calls and text messages across all of their supported devices, including smartwatches. [1] The service, which was created by myaNUMBER and licensed to AT&T compares to Apple Continuity, [2] is free of charge to AT&T ...

  6. Customer proprietary network information - Wikipedia

    en.wikipedia.org/wiki/Customer_proprietary...

    Customer proprietary network information ( CPNI) is the data collected by telecommunications companies about a consumer's telephone calls. [1] It includes the time, date, duration and destination number of each call, the type of network a consumer subscribes to, and certain other information that appears on the consumer's telephone bill.

  7. AT&T Communications - Wikipedia

    en.wikipedia.org/wiki/AT&T_Communications

    AT&T Cybersecurity. Website. www .att .com. 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 Mobility, AT&T Internet, AT&T Phone, AT&T Long Distance, AT&T Labs, AT&T Digital Life, and AT&T Cybersecurity .

  8. First Responder Network Authority - Wikipedia

    en.wikipedia.org/wiki/First_Responder_Network...

    The First Responder Network Authority ( FirstNet) of the United States was created under the Middle Class Tax Relief and Job Creation Act of 2012 (MCTRJCA). The purpose of FirstNet is to establish, operate, and maintain an interoperable public safety broadband network. To fulfill these objectives, Congress allotted $7 billion and 20 MHz of ...

  9. BellSouth Telecommunications - Wikipedia

    en.wikipedia.org/wiki/BellSouth_Telecommunications

    www.att.com www.bellsouth.com. BellSouth Telecommunications, LLC was an operating company of AT&T that served the southeastern United States. It consisted of the operations of Southern Bell and South Central Bell . BellSouth Telecommunications was a subsidiary of BellSouth Corporation which was acquired by AT&T Inc. on December 29, 2006.

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