Area codes 508 and 774 are telephone area codes in the North American Numbering Plan (NANP) for the U.S. state of Massachusetts. The numbering plan area...

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...

provided by a division of the telephone numbering plan into groups of area codes for the following regions: Telephone numbers in Mexico "Telephone numbering...

single-area code NPA. Eastern Massachusetts has area codes 339, 351, 508, 617, 774, 781, 857, and 978. Western Massachusetts has area code 413. The numbering...

Area codes 587, 825, and 368 are telephone area codes in the North American Numbering Plan (NANP) for the entire Canadian province of Alberta. They form...

Area code 978 was created in an area code split of area code 508 on September 1, 1997. A permissive dialing period ended on February 1, 1998. Area code 351...

Area code 613 is one of the 86 original North American area codes assigned in October 1947. Area code 343 was assigned to the numbering plan area in...

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...

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...