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NANP numbers are ten-digit numbers consisting of a three-digit Numbering Plan Area (NPA) code, commonly called an area code, followed by a seven-digit local number. The format is usually represented as. NXX-NXX-XXXX. where N is any digit from 2 through 9 and X is any digit from 0 through 9. More information can be found under Numbering Resources.
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.
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 international calling code 1. Some North American countries, most notably Mexico, do not participate in the NANP.
There are also 80 area codes reserved for future expansion of the numbering system, that is, those whose middle digit is 9. Article North American Numbering Plan expansion tells how they might be used. This makes a total of 322 currently unused area codes, or 40% of the total space of 800 possible area codes.
NANP stands for North American Numbering Plan.It is a telephone numbering plan designed and used commonly by 19 different countries and territories in North America. These countries include the United States and its territories, Anguilla, Antigua & Barbuda, Bermuda, the Bahamas, Barbados, the British Virgin Islands, Canada, the Cayman Islands, Dominica, the Dominican Republic, Grenada, Jamaica ...
North American Numbering Plan, NANP) — совместный телефонный план нумерации 24 стран и территорий: США (включая островные территории), Канады, Бермуд и 16 карибских государств.
