Reported (831) XXX-XXXX phone numbers lookup

Browse phone numbers associated with area code 831 in California (CA), United States. Our database currently includes 10,000 numbers from this range, of which a total of numbers have been recently reported. The latest report was submitted on .

Find Entries for 831 area code:

Latest Entries for 831 area code:

(831) 222-8225

A robocall advertising debt relief for credit cards, mortgages, and student loans came through as spam.

Reported as "Debt Relief"

Recent Reports:

(206) 922-0880

Robocall spam from 206-922-0880.

Reported as "RoboCall"

(866) 771-6169

A robocall warned about an imposter scam, pretending to be a government office or other official source (number 866-771-6169).

Reported as "Imposter"

(888) 905-0901

Robocalls from 888-905-0901 impersonate a government, business, or someone known and try to scam the recipient.

Reported as "Imposter"

(877) 578-2315

An automated robocall advertising spam came in on 877-578-2315.

Reported as "RoboCall"

(877) 578-2751

A robocall warning of spam came in on 877-578-2751 and was flagged as unwanted.

Reported as "RoboCall"

(941) 726-1627

This number keeps calling as a robocall and is being reported as spam.

Reported as "RoboCall"

(888) 310-1306

A robocall on 888-310-1306 came through as spam and prompted complaints.

Reported as "RoboCall"

(866) 771-5582

An automated spam call came in using 866-771-5582.

Reported as "RoboCall"

About Area Code 831

Area code 831 includes California's Monterey Bay area and Salinas Valley, where among other cities are located such important cities as Salinas, Monterey, Santa Cruz, and Hollister. It is currently in use throughout the area, operating on Pacific Time.


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  • Location: California (CA), United States
  • Time Zone: America/Los_Angeles
  • Introduced: 1998
  • Overlay Code: None listed
  • Service Type: Mixed (Landline, Mobile)
  • Major Carriers: Pacific Bell, Pac - West Telecomm, Cingular, O1 Communications
  • Numbers in Our Database: Over 10 thousand phone records.

Area Code 831 History and Coverage

Area code 831 was introduced on July 11, 1998, by geographical split of area code 408. The necessity of introducing the code resulted from the growing need for numbering in the area, which at that point encompassed larger number of regions than just the modern Santa Clara County.

Its numbering history reaches back to 1947, when this portion of central California fell within area code 415, one of California’s first three area codes. A split in 1959 created 408 and placed the Monterey Bay region and adjoining inland communities under that code for nearly four decades.

831 code serves the broad corridor of Central Coast, starting from the Big Sur coastline and Monterey Bay region through the Salinas Valley towards San Benito County in the east of the Coast Ranges. The remaining parts of area code 408 serve northern regions around Santa Clara County. Several similar numbering-plan changes were observed in California in the late 1990s.

Cities covering area code 831:

  • Salinas
  • Monterey
  • Hollister
  • Santa Cruz
  • Felton
  • Boulder Creek
  • Ben Lomond
  • Aptos
  • San Ardo
  • Soledad
  • Carmel
  • Big Sur
  • Watsonville
  • King City
  • Gonzales
  • Tres Pinos
  • Greenfield
  • Marina
  • Castroville
  • San Juan Bautista
  • Carmel Valley
  • Chualar
  • Cantua Creek
  • Aromas