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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.
Locator map. In cartography, a locator map, or just a locator, is typically a simple map used to show the location of a particular geographic region within its larger and presumably more familiar context. Depending on the needs of the cartographer, this type of map can be used on its own or as an inset or addition to a larger map.
The area codes are allocated within the North American Numbering Plan (NANP). The two original area codes for Missouri in 1947 were 314 and 816. Area code 417 was split off from 816 in 1950, and the other area codes followed more than 40 years later, due to the proliferation of Cellular Phones and Pagers.
NPA Year Current region 212: 1947 New York City: Manhattan only; overlays with 332, 646, and 917 : 315: 1947 Syracuse, Utica, Watertown, and north central New York; overlaid by 680.
Area codes 212, 646, and 332. Coordinates: 40°43′42″N 73°59′39″W. Area codes in New York state; area codes 212, 646 and 332 highlighted in dark blue. Area codes 212, 646, and 332 are area codes in the North American Numbering Plan (NANP) for most of the borough of Manhattan in New York City. By area, it is one of the smallest ...
List of Arizona area codes. The U.S. state of Arizona is served by five telephone area codes in three numbering plan areas: Area codes 602, 480, and 623 serve the Phoenix metropolitan area. The three area codes were recombined in 2023 into an overlay complex after a 1999 split: The former 602 area consists of most of the city of Phoenix, with ...
971: An overlay of area code 503. Until 2008, 971 was a concentrated overlay, meaning it was only present in some parts of the 503 area. Today it is a standard overlay. 458: An overlay of area code 541. Under the original North American Numbering Plan of 1947, area code 503 covered all of Oregon. Area code 541 was split off in 1995, the 971 ...
Area codes 702 and 725 are telephone area codes in the North American Numbering Plan (NANP) for Clark County, including Las Vegas, in the U.S. state of Nevada.Area code 702 was one of the original North American area codes established in October 1947, and serviced the entire state of Nevada until 1998, when it was reduced to Las Vegas and the surrounding area.