Area code 831 is a

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, rea ...

in the

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 ...

(NANP) for a small region of the

U.S. state In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its sover ...

California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...

. The numbering plan area (NPA) comprises

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 ...

San Benito County San Benito County (; ''San Benito'', Spanish for "St. Benedict"), officially the County of San Benito, is a county located in the Coast Range Mountains of the U.S. state of California. As of the 2020 census, the population was 64,209. The coun ...

, and Santa Cruz County. The area code was created on July 11, 1998 in a split from

area code 408 Area codes 408 and 669 are telephone area codes in the North American Numbering Plan (NANP) in the U.S. state of California. The numbering plan area comprises most of Santa Clara County and Northern Santa Cruz County, and includes Gilroy, Mo ...

Service area

The service area of NPA 831 includes

Big Sur Big Sur () is a rugged and mountainous section of the Central Coast of California between Carmel and San Simeon, where the Santa Lucia Mountains rise abruptly from the Pacific Ocean. It is frequently praised for its dramatic scenery. Big Sur ha ...

Monterey Bay Monterey Bay is a bay of the Pacific Ocean located on the coast of the U.S. state of California, south of the San Francisco Bay Area and its major city at the south of the bay, San Jose. San Francisco itself is further north along the coast, by a ...

, the

Salinas Valley The Salinas Valley is one of the major valleys and most productive Agriculture, agricultural regions in California. It is located west of the San Joaquin Valley and south of San Francisco Bay and the Santa Clara Valley. The Salinas River (Califo ...

, and the southwestern

Santa Cruz Mountains The Santa Cruz Mountains, part of the Pacific Coast Ranges, are a mountain range in central and Northern California, United States. They form a ridge down the San Francisco Peninsula, south of San Francisco. They separate the Pacific Ocean from ...

. Major cities in the area are Salinas, Hollister,

Monterey Monterey (; es, Monterrey; Ohlone: ) is a city located in Monterey County on the southern edge of Monterey Bay on the U.S. state of California's Central Coast. Founded on June 3, 1770, it functioned as the capital of Alta California under both ...

, Santa Cruz and places in the northern Central Coast.

Monterey County

* Aromas * Boronda * Carmel Highlands * Carmel Valley Village *

Carmel-by-the-Sea Carmel-by-the-Sea (), often simply called Carmel, is a city in Monterey County, California, United States, founded in 1902 and incorporated on October 31, 1916. Situated on the Monterey Peninsula, Carmel is known for its natural scenery and ric ...

* Castroville * Chualar *

Del Monte Forest Del Monte Forest (''Del Monte'', Spanish for "of the mountain") is a census-designated place (CDP) in Monterey County, California. As of the 2020 census, the CDP had a total population of 4,204, down from 4,514 at the 2010 census. The census area ...

* Del Rey Oaks * Elkhorn *

Gonzales Gonzales may refer to: Places * Gonzales, California, U.S. * Gonzales, Louisiana, U.S. * Gonzales, Texas, U.S. * Gonzales County, Texas Other uses * Battle of Gonzales, 1835 * Gonzales (horse) (1977 – after 1996), an American-bred Thoroughbred ...

* Gorda * Greenfield * Jolon * King City * Las Lomas * Lockwood *

Marina A marina (from Spanish , Portuguese and Italian : ''marina'', "coast" or "shore") is a dock or basin with moorings and supplies for yachts and small boats. A marina differs from a port in that a marina does not handle large passenger ships o ...

Moss Landing Moss Landing, formerly Moss, is an unincorporated community and census-designated place (CDP) in Monterey County, California, United States. It is located north-northeast of Monterey, at an elevation of . It is on the shore of Monterey Bay, at the ...

* Pacific Grove * Pajaro *

Pebble Beach Pebble Beach is an unincorporated community on the Monterey Peninsula in Monterey County, California. The small coastal residential community of mostly single-family homes is also notable as a resort destination, and the home of the golf course ...

* Prunedale * Salinas * San Ardo * San Lucas * Sand City * Seaside * Soledad * Spreckels

San Benito County

* Aromas * Hollister *

New Idria New Idria was an Unincorporated area, unincorporated town in San Benito County, California. It was named after the New Idria Mercury Mine, which closed in 1972, resulting in a ghost town. Geography The area is inside Area code 831. It is included ...

* Paicines * Panoche * Ridgemark * San Juan Bautista * Tres Pinos

Santa Cruz County

* Amesti *

Aptos Hills-Larkin Valley Aptos Hills-Larkin Valley is an unincorporated community in Santa Cruz County, California, United States. It is identified as one of several small communities with a combined population of 24,402 forming the unincorporated town of Aptos by the loca ...

Aptos Aptos (Ohlone for "The People") is an unincorporated town in Santa Cruz County, California. The town is made up of several small villages, which together form Aptos: Aptos Hills-Larkin Valley, Aptos Village, Cabrillo, Seacliff, Rio del Mar, and S ...

Ben Lomond Ben Lomond (Scottish Gaelic: Beinn Laomainn, 'Beacon Mountain'), , is a mountain in the Scottish Highlands. Situated on the eastern shore of Loch Lomond, it is the most southerly of the Munros. Ben Lomond lies within the Ben Lomond National Me ...

* Bonny Doon * Boulder Creek * Brookdale * Capitola * Corralitos * Davenport * Day Valley * Felton *

Freedom Freedom is understood as either having the ability to act or change without constraint or to possess the power and resources to fulfill one's purposes unhindered. Freedom is often associated with liberty and autonomy in the sense of "giving on ...

Interlaken , neighboring_municipalities= Bönigen, Därligen, Matten bei Interlaken, Ringgenberg, Unterseen , twintowns = Scottsdale (USA), Ōtsu (Japan), Třeboň (Czech Republic) Interlaken (; lit.: ''between lakes'') is a Swiss town and mun ...

Live Oak Live oak or evergreen oak is any of a number of oaks in several different sections of the genus ''Quercus'' that share the characteristic of evergreen foliage. These oaks are not more closely related to each other than they are to other oaks. ...

* Lompico *

Mount Hermon Mount Hermon ( ar, جبل الشيخ or جبل حرمون / ALA-LC: ''Jabal al-Shaykh'' ("Mountain of the Sheikh") or ''Jabal Haramun''; he, הַר חֶרְמוֹן, ''Har Hermon'') is a mountain cluster constituting the southern end of the ...

* Opal Cliffs * Pasatiempo * Rio del Mar * Santa Cruz *

Scotts Valley Scotts Valley is a small city in Santa Cruz County, California, United States, about thirty miles (48 km) south of downtown San Jose and six miles (10 km) north of the city of Santa Cruz, in the upland slope of the Santa Cruz Mount ...

Soquel Soquel (; Ohlone: ''Sokel'') is an unincorporated town and census-designated place (CDP) in Santa Cruz County, California, located on the northern coast of Monterey Bay. The population was 9,980 at the 2020 census. Geography Soquel is located a ...

Summit A summit is a point on a surface that is higher in elevation than all points immediately adjacent to it. The topography, topographic terms acme, apex, peak (mountain peak), and zenith are synonymous. The term (mountain top) is generally used ...

* Swanton * Twin Lakes *

Watsonville Watsonville is a city in Santa Cruz County, California, located in the Monterey Bay Area of the Central Coast of California. The population was 52,590 according to the 2020 census. Predominantly Latino and Democratic, Watsonville is a self- ...

References

External links

{{coord, 36.9, -121.8, region:US-CA, display=title

831 __NOTOC__ Year 831 ( DCCCXXXI) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. Events By place Byzantine Empire * Byzantine–Arab War: Emperor Theophilos invades the Abbasid dominion ...