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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.
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. Original North American area codes
Area codes in New York (state) (22 P) Area codes in North Carolina (7 P) Area codes in North Dakota (1 P) O. Area codes in Ohio (9 P) Area codes in Oklahoma (4 P)
The North American Numbering Plan does not reserve special non-geographic area codes exclusively for cellular phones, as is customary in some other national telephone administrations. Only one regional exception exists in area code 600 in Canada.
This includes all area codes that can also be found in the subcategories. This category lists the telephone area codes in the United States . Area codes in the North American Numbering Plan area may not contain 0 or 1 as the first digit.
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Pages in category "Lists of United States area codes" The following 52 pages are in this category, out of 52 total. ... List of North American Numbering Plan area ...
A phone number communicates a lot --and if you dig a little deep, an area code contains information about the economic situation of its residents, too. Richest and poorest area codes in the US ...