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, r ...

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 calling ...

(NANP) for a small region of 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 ...

. 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, 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, Mor ...

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 ...

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 ...

, the

Salinas Valley The Salinas Valley is one of the major valleys and most productive 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, which geologically ...

, 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 bot ...

, Santa Cruz and places in the northern Central Coast.

Monterey County

* Aromas * Boronda * Carmel Highlands * Carmel Valley Village * Carmel-by-the-Sea * 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 * Gorda *

Greenfield Greenfield or Greenfields may refer to: Engineering and Business * Greenfield agreement, an employment agreement for a new organisation * Greenfield investment, the investment in a structure in an area where no previous facilities exist * Greenf ...

* 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 or ...

* Moss Landing * 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 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 in the Monterey Bay U ...

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

Santa Cruz County

* Amesti * Aptos Hills-Larkin Valley *

Aptos Aptos (Ohlone languages, Ohlone for "The People") is an unincorporated area, 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, ...

* Ben Lomond * Bonny Doon * Boulder Creek *

Brookdale Brookdale is the name of many settlements, institutions, and businesses in English-speaking countries. Cities and towns * Brookdale, California, an unincorporated town in Santa Cruz County * Brookdale, Kansas * Brookdale, Manitoba, an unincorporate ...

* Capitola * Corralitos *

Davenport Davenport may refer to: Places Australia *Davenport, Northern Territory, a locality *Hundred of Davenport, cadastral unit in South Australia **Davenport, South Australia, suburb of Port Augusta ** District Council of Davenport, former local govern ...

* 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 one ...

Interlaken Interlaken (; lit.: ''between lakes'') is a Swiss town and municipality in the Interlaken-Oberhasli administrative district in the canton of Bern. It is an important and well-known tourist destination in the Bernese Oberland region of the Swiss A ...

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 * 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 *

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

* 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 dominio ...