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North American Numbering Plan, NANP) — совместный телефонный план нумерации 24 стран и территорий: США (включая островные территории), Канады, Бермуд и 16 карибских государств.
North America United States, Canada, and other NANP countries. Twenty-four countries and territories share the North American Numbering Plan (NANP), with a single country code, 1. The formatting convention for telephone numbers is (NPA) NXX-XXXX, where NPA is the three-digit area code, and NXX-XXXX is the seven-digit subscriber number.
The original configuration of the North American Numbering Plan assigned eighty-six area codes in October 1947, one each to every numbering plan area. The territories of the United States, which included Alaska, and Hawaii, did not receive area codes at first, nor did the territories of Canada or Newfoundland and Labrador, which was a British ...
The NANP is an integrated numbering plan serving 20 North American countries that share its resources. Regulatory authorities in each participating country have plenary authority over numbering resources, but all participating countries, implicitly or explicitly, share numbering resources cooperatively. This approach has been successful for ...
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. Numbering plan areas may be assigned multiple area codes to provide adequate ...
11 de nov. de 2023 · Language links are at the top of the page across from the title.
The average number of pulses is 12; there are 28 potential NPAs with fewer than 12 pulses, 28 with more than 12 pulses, and 8 with exactly 12 pulses. These 8 are apparently "reserved", as none of them were included in the 1947 NPA assignments. Of the 28 potential NPAs with fewer than 12 pulses, all 28 were assigned.
