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  2. Original North American area codes - Wikipedia

    en.wikipedia.org/wiki/Original_North_American...

    The original North American area codes were established by the American Telephone and Telegraph Company (AT&T) in 1947, after the demonstration of regional Operator Toll Dialing during the World War II period. The program had the goal of speeding the connecting times for long-distance calling by eliminating intermediary telephone operators.

  3. AT&T Communications (1984–2010) - Wikipedia

    en.wikipedia.org/wiki/AT&T_Communications_(1984...

    AT&T Communications (1984–2010) An AT&T Long Lines tower in Phoenix, AZ. For the division of the AT&T Inc. that was created in 2017, see AT&T Communications. AT&T Communications, Inc., doing business as AT&T Communications, was a division of the AT&T Corporation that, through 23 subsidiaries, provided interexchange carrier and long-distance ...

  4. 10-10-321 - Wikipedia

    en.wikipedia.org/wiki/10-10-321

    10-10-321, 10-10-345, 10-10-220, and 10-10-987 are United States long-distance phone services best known for their prolific television and direct mail advertising in the late 1990s. 10-10-321 was the first mass-marketed service of its type. 10-10-345 was owned by AT&T, and the rest were all owned by Telecom USA, which was owned by MCI; MCI is now part of Verizon.

  5. AT&T - Wikipedia

    en.wikipedia.org/wiki/AT&T

    After this purchase, SBC adopted the better-known AT&T name and brand, with the original AT&T Corporation still existing as the long-distance landline subsidiary of the merged company. [39] The current AT&T Inc. claims the original AT&T Corporation's history (dating to 1877) as its own, [ 40 ] but retains SBC's pre-2005 corporate structure and ...

  6. History of AT&T - Wikipedia

    en.wikipedia.org/wiki/History_of_AT&T

    In 1880, the management of American Bell created what would become AT&T Long Lines. The project was the first of its kind to create a nationwide long-distance network with a commercially viable cost-structure. This project was formally incorporated into a separate company named American Telephone and Telegraph Company on March 3, 1885.

  7. Long-distance calling - Wikipedia

    en.wikipedia.org/wiki/Long-distance_calling

    Interstate long-distance or inter-LATA interstate long-distance, the most common group, is the one for which long-distance carriers are usually chosen by telephone customers. Another form of long-distance call, increasingly relevant to more U.S. states, is known as an inter-LATA intrastate long-distance call. This refers to a calling area ...

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