Area codes 402 and 531 are telephone area codes in the North American Numbering Plan (NANP) for the eastern part of the U.S. state of Nebraska. Area code...

area code is one of the nine original North American area codes assigned to Canada in 1947. The numbering plan area is also served by area codes 236,...

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...

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

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...

Nebraska. It was created on July 1, 1954, by splitting the numbering plan area (NPA) 402 along a roughly S-shaped boundary line from the western half of the...

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...

telephone area codes in the state of Nebraska. 308: Western Nebraska, including Grand Island and Kearney 402/531: Eastern Nebraska, including Omaha and Lincoln...

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 304 and 681 are telephone area codes in the North American Numbering Plan (NANP) for the entirety of the U.S. state of West Virginia. The numbering...

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 code boundaries were redrawn in 1954 to avoid cutting across major toll traffic routes out of the Twin Cities. This resulted in three area codes...

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

American area codes created by AT&T in 1947, and continues to be the only area code in North Dakota, one of eleven states with only one area code. Numbering...

Area codes 870 and 327 are telephone area codes in the North American Numbering Plan (NANP) for southern, eastern, and most of northern Arkansas. 870 was...

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...

857, 975 Premium calls (unassigned): 211, 308, 311, 320, 402, 406, 411, 476, 507, 511, 531, 536, 555, 605, 611, 621, 663, 700, 701, 711, 712, 811, 911...

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...

Area codes 204, 431, and 584 are telephone area codes in the North American Numbering Plan (NANP) for the Canadian province of Manitoba. Area code 204...

Area codes 418, 581, and 367 are telephone area codes in the North American Numbering Plan (NANP) for the eastern portion of the Canadian province of...

Calgary area. This numbering plan area is also served by area codes 587, 825, and 368, which form a complex overlay for all of Alberta. Area code 403 was...

west as Lexington and Northern Kentucky (the Kentucky side of the Cincinnati area). Notably, it was one of the first three area codes with "0" as the middle...

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 208 and 986 are telephone area codes in the North American Numbering Plan for all of Idaho. Area code 208 is one of the 86 original area codes...

Area codes 902 and 782 are telephone area codes in the North American Numbering Plan (NANP) for the Canadian provinces of Nova Scotia and Prince Edward...

of the original North American area codes in 1947. The numbering plan area is also served by area codes 587, 825, and 368, which form a complex overlay...

Area codes 306, 639, and 474 are telephone area codes in the North American Numbering Plan (NANP) for the entire Canadian province of Saskatchewan. Area...

Area code 970 is a telephone area code in the North American Numbering Plan (NANP) for the western and northern parts of the U.S. of State of Colorado...