Area codes 805 and 820 are

telephone A telephone is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be easily heard directly. A telephone converts sound, typically and most efficiently the human voice, into e ...

area code 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, r ...

s in the U.S. state of

California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the m ...

. 805 was split from

area code 213 Area codes 213 and 323 are telephone area codes in the North American Numbering Plan (NANP) for the U.S. state of California. They are assigned to a numbering plan area (NPA) that comprises, roughly, the area of central Los Angeles, and includes ...

in 1957. They include most or all of the

counties of San Luis Obispo, Santa Barbara, Ventura, plus the southernmost portions of

Monterey County Monterey County ( ), officially the County of Monterey, is a county located on the Pacific coast in the U.S. state of California. As of the 2020 census, its population was 439,035. The county's largest city and county seat is Salinas. Montere ...

. On February 13, 1999, area code 805 was split, with area code 661 having been created for the inland areas, which are the

San Joaquin Valley The San Joaquin Valley ( ; es, Valle de San Joaquín) is the area of the Central Valley of the U.S. state of California that lies south of the Sacramento–San Joaquin River Delta and is drained by the San Joaquin River. It comprises seven ...

Santa Clarita Valley The Santa Clarita Valley (SCV) is part of the upper watershed of the Santa Clara River in Southern California. The valley was part of the Rancho San Francisco Mexican land grant. Located in Los Angeles County, its main population center is th ...

, and

Antelope Valley The Antelope Valley is located in northern Los Angeles County, California, and the southeast portion of Kern County, California, and constitutes the western tip of the Mojave Desert. It is situated between the Tehachapi, Sierra Pelona, and ...

. Area code 805 also serves the US military facilities in

Kwajalein Kwajalein Atoll (; Marshallese: ) is part of the Republic of the Marshall Islands (RMI). The southernmost and largest island in the atoll is named Kwajalein Island, which its majority English-speaking residents (about 1,000 mostly U.S. civilia ...

Republic of the Marshall Islands The Marshall Islands ( mh, Ṃajeḷ), officially the Republic of the Marshall Islands ( mh, Aolepān Aorōkin Ṃajeḷ),'' () is an independent island country and microstate near the Equator in the Pacific Ocean, slightly west of the Inte ...

with a

Paso Robles Paso Robles ( ), officially El Paso de Robles (Spanish for "The Pass of Oaks"), is a city in San Luis Obispo County, California, United States. Located on the Salinas River approximately north of San Luis Obispo, the city is known for its ho ...

prefix A prefix is an affix which is placed before the stem of a word. Adding it to the beginning of one word changes it into another word. For example, when the prefix ''un-'' is added to the word ''happy'', it creates the word ''unhappy''. Particul ...

(805-355-xxxx). This arrangement originated from the US Army's first satellite communications station having been built at nearby Camp Roberts. In August 2016, the California Public Utilities Commission held a series of hearings regarding the potential need to provide a relief area code for 805 in the form of an

overlay Overlay may refer to: Computers *Overlay network, a computer network which is built on top of another network *Hardware overlay, one type of video overlay that uses memory dedicated to the application *Another term for exec, replacing one process ...

or a split. On May 25, 2017, the Commission approved 820 as an overlay area code. New telephone numbers of 820 area code began service in June 2018, requiring ten-digit dialing for all calls.

Service area

Monterey County

* Bradley * Gorda * Bryson * Parkfield

San Luis Obispo County

* Arroyo Grande * Atascadero *

Avila Beach Avila Beach (Spanish: ''Ávila'') is an unincorporated community in San Luis Obispo County, California, United States, located on San Luis Obispo Bay about 160 miles (257 km) northwest of Los Angeles, and about south of San Francisco. The ...

* Baywood-Los Osos * California Valley *

Cambria Cambria is a name for Wales, being the Latinised form of the Welsh name for the country, . The term was not in use during the Roman period (when Wales had not come into existence as a distinct entity). It emerged later, in the medieval period ...

* Cayucos *

Cholame Cholame (; Salinan: ''Tco'alam'') is an unincorporated community in San Luis Obispo County, California, United States. It sits within a mile of the San Andreas Fault at an elevation of above sea level and is located at . Cholame is reached v ...

* Grover Beach * Halcyon *

Harmony In music, harmony is the process by which individual sounds are joined together or composed into whole units or compositions. Often, the term harmony refers to simultaneously occurring frequencies, pitches ( tones, notes), or chords. Howeve ...

Lake Nacimiento Lake Nacimiento is an long lake on the Nacimiento River in northern San Luis Obispo County, California. The lake contains many arms including Snake Creek and Dip Creek, nearer the dam, and the central Las Tablas and Franklin Creeks. Due to t ...

* Los Osos * Morro Bay * Nipomo * Oceano *

* Pismo Beach * Pozo * San Luis Obispo * San Miguel * San Simeon * Santa Margarita * Shandon * Templeton

Santa Barbara County

* Ballard * Buellton * Carpinteria * Casmalia * Garey * Gaviota *

Goleta Goleta or La Goleta may refer to: * ''Goleta'' (spider), a spider genus * Goleta, California, United States, a suburban city in Santa Barbara County * La Goleta, the Spanish and Portuguese name for La Goulette La Goulette (, it, La Goletta), i ...

* Guadalupe * Hope Ranch * Isla Vista * Lompoc * Los Alamos * Los Olivos * Mission Canyon * Mission Hills * Montecito * Orcutt * Santa Barbara * Santa Maria * Santa Ynez * Sisquoc * Solvang * Summerland * Toro Canyon * Vandenberg SFB * Vandenberg Village * Ventucopa

Ventura County

* Bardsdale * Buckhorn * Camarillo *

Casa Conejo Casa Conejo (; Spanish for "Rabbit House") is an unincorporated county island in Newbury Park, Ventura County, California, United States. It was the first planned community in Newbury Park and began building in 1960. When the city of Thousand O ...

* Channel Islands Beach * El Rio * Fillmore * La Conchita * Lake Sherwood * Meiners Oaks * Mira Monte * Montalvo *

Moorpark Moorpark is a city in Ventura County in Southern California. Moorpark was founded in 1900. The town grew from just over 4,000 citizens in 1980 to over 25,000 by 1990. As of 2006, Moorpark was one of the fastest-growing cities in Ventura County.. ...

* Newbury Park * Oak View * Ojai * Oxnard * Piru *

Point Mugu Point Mugu (, Chumash: ''Muwu'') is a cape or promontory within Point Mugu State Park on the Pacific Coast in Ventura County, near the city of Port Hueneme and the city of Oxnard. The name is believed to be derived from the Chumash Indian term ...

* Port Hueneme * Santa Paula * Saticoy * Simi Valley * Somis * Thousand Oaks * Ventura

References

External links

{{coord, 34.6, -120.2, region:US-CA_type:adm2nd_dim:400km, display=title 805/820 805/820 Monterey County, California Santa Barbara County, California San Luis Obispo County, California Ventura County, California