Area codes 209 and 350 are telephone area codes in the North American Numbering Plan (NANP) for the U.S. state of California. Their service area includes...

Area codes 559 and 357 are telephone area codes in the North American Numbering Plan for the central San Joaquin Valley in central California. The numbering...

Area codes 619 and 858 are telephone area codes in the North American Numbering Plan (NANP) for most of San Diego County in the U.S. state of California...

Area codes 909 and 840 are telephone area codes in the North American Numbering Plan for the far-eastern part of Los Angeles County, southwestern San...

Area codes 714 and 657 are telephone area codes in the North American Numbering Plan (NANP) for the southern part of the U.S. state of California. The...

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...

Allensworth Earlimart Posey List of California area codes List of North American Numbering Plan area codes "Area Code Maps". NANPA. 35°00′N 118°42′W / 35°N...

Area codes 213, 323, and 738 are telephone area codes in the North American Numbering Plan (NANP) for the U.S. state of California. They are assigned...

Area codes 805 and 820 are telephone area codes in the North American Numbering Plan (NANP) for the U.S. state of California. The numbering plan area...

Area codes 916 and 279 are telephone area codes in the North American Numbering Plan for the region of Sacramento, the state capital of the U.S. state...

divided into three numbering plan areas (NPAs) with distinct area codes: 213, 415, and 916, for the southern, central, and northern parts of the state, respectively...

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...

the 657/714 area code) Trabuco Canyon Tustin (mostly in the 657/714 area code) The city of Costa Mesa is divided between area codes 949 and 714, being...

Area codes 415 and 628 are telephone area codes in the North American Numbering Plan (NANP) for the city of San Francisco and its northern suburbs in...

Area codes 510 and 341 are telephone area codes in the North American Numbering Plan (NANP) serving much of the East Bay in the U.S. state of California...

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

657/714 area code) Rossmoor Seal Beach List of California area codes List of NANP area codes North American Numbering Plan "Half of 310 Area Code Will Be...

(small part in the 909 area code) West Puente Valley List of California area codes List of North American Numbering Plan area codes "Transition to 10-digit...

Area codes 310 and 424 are telephone area codes in the North American Numbering Plan (NANP) for the U.S. state of California. The numbering plan area...

areas (NPAs) with distinct area codes: 213, 415, and 916, for the southern, central, and northern parts of the state, respectively. California area codes...

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...

numbering plan and assigned the original North American area codes, the state of California was divided into three numbering plan areas: 213, 415, and 916, for...

Area code 650 is a telephone area code in the North American Numbering Plan (NANP) for the San Francisco Bay Area in the U.S. state of California. It...

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 781 and 339 are telephone area codes in the North American Numbering Plan for the U.S. state of Massachusetts. The numbering plan area consists...

Wyoming. It is one of the 86 original North American area codes created by the American Telephone and Telegraph Company (AT&T) in 1947. Because it is sparsely...

Area codes 760 and 442 are telephone area codes in the North American Numbering Plan (NANP) for the U.S. state of California. These area codes serve an...

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...

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...