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When the original North American area codes were introduced for a nationwide telephone numbering plan in 1947, the entire state was a single numbering plan area (NPA) with area code 305. In 1953, area code 813 was introduced for the western coast of Florida, and 904 was assigned for northern Florida in 1965. In 1988, area code 407 was ...
Telephone numbers in Canada follow the fixed-length format of the North American Numbering Plan (NANP) of a three-digit area code, a three-digit central office code (or exchange code), and a four-digit station or line code. This is represented as NPA NXX XXXX. [1]
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.
Area codes are also assigned for non-geographic purposes. The rules for numbering NPAs do not permit the digits 0 and 1 in the leading position. [1] Area codes with two identical trailing digits are easily recognizable codes (ERC). NPAs with 9 in the second position are reserved for future format expansion.
The projected exhaust dates for area codes 403 and 780 were March and October 2009, respectively. In 1997, two area codes, 587 and 825, were reserved by Bellcore for Alberta. [1] The first of the new area codes, 587, entered service on September 19, 2008, as an overlay for the entire province.
Area codes 813 and 656 are area codes in the North American Numbering Plan for the U.S. state of Florida in the city of Tampa, Florida, and its surrounding areas, such as Zephyrhills and Oldsmar. In 2022, due to exhaustion of central office prefixes, area code 656 was added to the service area forming an overlay complex .
Area code 819 thus bordered area code 613 and the new area code 705 in Ontario, area code 418 in the east and the north of Quebec, and the remainder of area code 514 in the south of Quebec. When telephone service was introduced in the eastern Northwest Territories (most of which is now the territory of Nunavut , created in 1999), in Frobisher ...
Area code 239; Area codes 305, 786, and 645; Area code 321; Area code 352; Area code 386; Area codes 407 and 689; Area codes 561 and 728; Area code 727; Area code 728; Area codes 954 and 754; Area code 772; Area codes 813 and 656; Area codes 850 and 448; Area code 863; Area codes 904 and 324; Area code 941