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Area codes 450, 579, and 354 are telephone area codes in the North American Numbering Plan in the Canadian province of Quebec, encompassing the off-island...

Area codes 514, 438, and 263 are telephone area codes of the North American Numbering Plan (NANP) for Montreal and most of its on-island suburbs, specifically...

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...

Area codes 613, 343, and 753 are telephone area codes in the North American Numbering Plan (NANP) for Ottawa and surrounding Eastern Ontario, Canada. Area...

area codes in 1947. The numbering plan area retains its original boundaries, having never been split or overlaid. As of April 2020[update], area code...

Valley and the lower Fraser Canyon regions. The major city is Vancouver. The area code is one of the nine original North American area codes assigned...

43°12′N 73°54′W / 43.2°N 73.9°W / 43.2; -73.9 Area codes 518 and 838 are telephone area codes in the North American Numbering Plan for eastern Upstate...

maintains a list of U.S. state and country codes, named World Area Codes (WAC). "BTS Aviation Support Tables: World Area Codes (WAC)". http://www.transtats...

Area codes 617 and 857 are telephone area codes in the North American Numbering Plan (NANP) for the U.S. state of Massachusetts, serving the city of Boston...

Area codes 905, 289, 365, and 742 are telephone area codes in the North American Numbering Plan (NANP) for the Golden Horseshoe region that surrounds Lake...

Area codes 705, 249, and 683 are telephone area codes in the North American Numbering Plan (NANP) for most of northeastern and central Ontario in Canada...

followed by the country code and the national significant number. Canada was divided into nine numbering plan areas with unique area codes in 1947 when the American...

Delaware. It is Delaware's only area code, and was assigned in 1947 as one of the original North American area codes. Despite the rapid growth in telecommunication...

Area codes 519, 226, 548, and 382 are overlay telephone area codes in the North American Numbering Plan (NANP) for most of southwestern Ontario. Area...

Area codes 541 and 458 are telephone area codes in the North American Numbering Plan (NANP) for most of the U.S. state of Oregon, excluding only the northwestern...

Springs Telephone Company and Northern Telephone Cooperative). Sufficient available codes for new exchanges in the 406 area code exist to meet anticipated...

"Area Code 603". www.area-codes.com. Retrieved 2022-05-12. NANPA area code map of New Hampshire List of exchanges from AreaCodeDownload.com, 603 Area Code...

Area codes 819, 873, and 468 are overlay telephone area codes in the North American Numbering Plan (NANP) for central and western Quebec, Canada, including...

numbering plan area (NPA) for the entire state with one of the original area codes in October 1947 and it remains Vermont's only area code. Vermont is among...

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...