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Area codes 916 and 279 are California telephone
area codes A telephone numbering plan is a type of numbering scheme used in telecommunication to assign telephone numbers to subscriber telephones or other telephony endpoints. Telephone numbers are the addresses of participants in a telephone network, reac ...
that serve
Sacramento ) , image_map = Sacramento County California Incorporated and Unincorporated areas Sacramento Highlighted.svg , mapsize = 250x200px , map_caption = Location within Sacramento ...
, the state capital, and most of its suburbs. Area code 916 was one of the first three original area codes established in California in October 1947. It originally covered most of Northern California, but area code splits have reduced its coverage to the greater Sacramento area. Area code 279 began service in March 2018 to relieve an exhausted supply of telephone numbers in the 916 area code.


History

Originally, the plan area covered the far northern portion of the state. In 1950, as part of a realignment of California's area codes, 916 was rotated to cover the northeastern corner of California, from the
Sierra Nevada The Sierra Nevada () is a mountain range in the Western United States, between the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies primarily ...
to the Central Valley. This involved changing Sacramento from
area code 415 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 Marin County (across the Golden Gate), and the northeast corner of San Mateo County in the U.S. s ...
to 916. The numbering plan area was split in a
flash-cut A flash cut, also called a flash cutover, is an immediate change in a complex system, with no phase-in period. In the United States, some telephone area codes were split or overlaid immediately, rather than being phased in with a permissive dia ...
on March 1, 1959, when
area code 707 Area code 707 is a telephone area code in the North American Numbering Plan (NANP) for the northwestern part of the U.S. state of California. It was created by a split of area code 415 on March 1, 1959. It serves part of the northern San Francisc ...
was created out of the northwest portion. On November 1, 1997, it was split again. The northeastern portion, including Redding, Yreka and
Mount Shasta Mount Shasta ( Shasta: ''Waka-nunee-Tuki-wuki''; Karuk: ''Úytaahkoo'') is a potentially active volcano at the southern end of the Cascade Range in Siskiyou County, California. At an elevation of , it is the second-highest peak in the Cascades ...
, became
area code 530 Area code 530 is a California telephone area code in northeastern and Northern California. Regions within it include the Sacramento Valley (including some outer suburbs of Sacramento), Shasta Cascade, and the northern Sierra Nevada. Area code 53 ...
, reducing the 916 numbering plan area to Sacramento and its immediate area. On the same day, Dixon was reassigned from 916 to 707. This split left 916 as the only one of the original 86 area codes that no longer covers any part of its original area. In 2017, the CPUC approved an overlay area code to take effect in 2018, as all available prefixes were expected to be allocated by December 2018. On February 9, 2017, the CPUC announced that the new overlay area code would be area code 279. The new area code began service on March 10, 2018.916 Area Code
California Public Utilities Commission. Accessed on 2016-08-12.


Towns and cities

Area codes 916 and 279 encompass Sacramento and its surrounding suburbs:


El Dorado County

* El Dorado Hills


Placer County

*
Granite Bay Granite Bay is a census-designated place (CDP) in Placer County, California, United States. It is part of the Sacramento– Arden-Arcade– Roseville Metropolitan Statistical Area. The population was 21,247 at the 2020 census, up from 20, ...
* Lincoln * Loomis *
Newcastle Newcastle usually refers to: *Newcastle upon Tyne, a city and metropolitan borough in Tyne and Wear, England *Newcastle-under-Lyme, a town in Staffordshire, England *Newcastle, New South Wales, a metropolitan area in Australia, named after Newcastle ...
* Penryn * Rocklin * Roseville


Sacramento County

*
Antelope The term antelope is used to refer to many species of even-toed ruminant that are indigenous to various regions in Africa and Eurasia. Antelope comprise a wastebasket taxon defined as any of numerous Old World grazing and browsing hoofed mammal ...
*
Arden-Arcade Arden-Arcade is a census-designated place (CDP) in Sacramento County, California, United States. The population was 92,186 at the 2010 census, making it the second most populous census-designated place in California. It is east of the city of Sac ...
* Carmichael * Citrus Heights * Elk Grove * Fair Oaks *
Florin The Florentine florin was a gold coin struck from 1252 to 1533 with no significant change in its design or metal content standard during that time. It had 54 grains (3.499 grams, 0.113 troy ounce) of nominally pure or 'fine' gold with a purcha ...
*
Folsom Folsom may refer to: People * Folsom (surname) Places in the United States * Folsom, Perry County, Alabama * Folsom, Randolph County, Alabama * Folsom, California * Folsom, Georgia * Folsom, Louisiana * Folsom, Missouri * Folsom, New Jers ...
* Foothill Farms * Gold River * Isleton * La Riviera * Locke * McClellan Park * North Highlands * Orangevale * Parkway-South Sacramento *
Rancho Cordova Rancho Cordova is a city in Sacramento County, California, United States which was incorporated in 2003. It is part of the Sacramento Metropolitan Area. The population was 64,776 at the 2010 census. In 2010 and 2019, Rancho Cordova was named ...
* Rancho Murieta * Rio Linda * Rosemont *
Sacramento ) , image_map = Sacramento County California Incorporated and Unincorporated areas Sacramento Highlighted.svg , mapsize = 250x200px , map_caption = Location within Sacramento ...
*
Vineyard A vineyard (; also ) is a plantation of grape-bearing vines, grown mainly for winemaking, but also raisins, table grapes and non-alcoholic grape juice. The science, practice and study of vineyard production is known as viticulture. Vineyards ...
* Walnut Grove * Wilton


Sutter County

* Pleasant Grove


Yolo County

* Clarksburg *
West Sacramento West Sacramento (also known as West Sac) is a city in Yolo County, California, United States. The city is separated from Sacramento by the Sacramento River, which also separates Sacramento and Yolo counties. It is a fast-growing community; the p ...


See also

* List of California area codes *
List of NANP area codes The North American Numbering Plan (NANP) divides the territories of its members into 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 di ...
*
North American Numbering Plan The North American Numbering Plan (NANP) is a telephone numbering plan for twenty-five regions in twenty countries, primarily in North America and the Caribbean. This group is historically known as World Zone 1 and has the international callin ...


References


External links


List of exchanges from AreaCodeDownload.com, 916 Area Code
{{coord, 38.6, -121.5, region:US-CA, display=title 916 916 Northern California Telecommunications-related introductions in 1947