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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.
In 2016, area code 614 was overlaid with 380 in the Columbus/Central Ohio area for the same reason. In 2020, 326 was added as an all services overlay for 937. Area code 283 was added as an overlay for 513 on April 28, 2023. Area code 436 went into service on March 1, 2024, as an overlay of 440. References
Lists of North American area codes. The largest telephone numbering plan in North American is the North American Numbering Plan (NANP), serving 25 regions or countries.
Area codes in the United States. For convenience, all U.S. area codes should be included in this category. This includes all area codes that can also be found in the subcategories. This category lists the telephone area codes in the United States .
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 ...
Geographic area code 2+8 only: 10: 020, 023, 024, 028, 029 3+7 only: 10: 0113, 0114, 0115, 0116, 0117, 0118, 0121, 0131, 0141, 0151, 0161, 0191 4+6 only: 10: All 01xxx area codes from 01200 to 01999 not otherwise mentioned. 4+6 areas where part of range is assigned as 5+5: 10: 01387, 01539 4+6 areas where part of range is assigned as mixed 5+5 ...
The area code is prefixed to each telephone number issued in its service area. Other national telecommunication authorities use various formats and dialing rules for area codes. The size of area code prefixes may either be fixed or variable.
Area codes 614 and 380. Coordinates: 40°N 83°W. The regions shown in blue are in Ohio. Area codes 614 and 380 are telephone area codes in the North American Numbering Plan (NANP) for all or part of four counties in central Ohio, surrounding and including the state capital of Columbus.
World Area Codes. The Bureau of Transportation Statistics (BTS), as part of the United States Department of Transportation (US DOT), maintains a list of U.S. state and country codes, [1] named World Area Codes (WAC).
International call prefix: 00. Trunk prefix: 0. New Zealand's telephone numbering plan divides the country into a large number of local calling areas. When dialling, if you wish to call a person in another local calling area, you must dial the trunk prefix followed by the area code. Below is a list of New Zealand local calling areas .