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  2. Telephone numbers in the Americas - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_the...

    The prefixes in the Americas start with one of 1,2,5. All countries in the Americas use codes that start with "5", with the exception of the countries of the North American Numbering Plan, such as Canada and the United States, which use country code 1, and Greenland and Aruba with country codes starting with the digit "2", which mostly is used by countries in Africa.

  3. List of North American Numbering Plan area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_North_American...

    The North American Numbering Plan (NANP) divides the territories of its members into geographic numbering plan areas (NPAs). Each NPA is identified by one or more numbering plan area codes (NPA codes, or area codes), consisting of three digits that are prefixed to each local telephone number having seven digits.

  4. North American Numbering Plan - Wikipedia

    en.wikipedia.org/wiki/North_American_Numbering_Plan

    The plan divided most of North America into eighty-six numbering plan areas (NPAs). Each NPA was assigned a unique three-digit code, typically termed NPA code or simply area code. These codes were first used in Operator Toll Dialing by long-distance operators in establishing calls via trunks between toll offices. The goal of automatic service ...

  5. Lists of North American area codes - Wikipedia

    en.wikipedia.org/wiki/Lists_of_North_American...

    The largest telephone numbering plan in North American is the North American Numbering Plan (NANP), serving 25 regions or countries. Other countries maintain an autonomous numbering plan with distinct country codes within the international E.164 specifications by the International Telecommunication Union.

  6. 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.

  7. Category:Telephone numbers in the United States - Wikipedia

    en.wikipedia.org/wiki/Category:Telephone_numbers...

    Telephone directory publishing companies of the United States (11 P) Pages in category "Telephone numbers in the United States" The following 69 pages are in this category, out of 69 total.

  8. Category : Area codes in the United States - Wikipedia

    en.wikipedia.org/wiki/Category:Area_codes_in_the...

    This list may not reflect recent changes. (previous page) Toll-free telephone number ... Contact Wikipedia; Code of Conduct; Developers; Statistics; Cookie statement ...

  9. Telephone numbering plan - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbering_plan

    In North America ten-digit dialing is required in areas with overlay numbering plans, in which multiple area codes are assigned to the same area. The strict correlation of a telephone number to a geographical area has been broken by technical advances, such as local number portability in the North American Numbering Plan and voice over IP services.

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