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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. A numbering plan area with multiple area codes is called an overlay. Area codes are also assigned for non-geographic purposes.
List of Nebraska area codes; List of Nevada area codes; List of New Hampshire area codes; List of New Jersey area codes; List of New Mexico area codes; List of New York area codes; List of North Carolina area codes; List of North Dakota area codes
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.
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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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 ...
N11 code; North American Numbering Council; List of North American Numbering Plan area codes; North American Numbering Plan expansion; Telephone number pooling; Numbering Resource Utilization/Forecast Report
This is a list of future area codes in the North American Numbering Plan (NANP) that are in the planning stages for relief of central office code exhaustion in the given numbering plan areas (NPAs). The dates are subject to change during implementation as published in the official NANP Administrator Planning Letters.