Area Code 831
Area code 831 covers Salinas and nearby cities including Santa Cruz, Watsonville, Hollister in California, in the Pacific Time.
Is a call from 831 a scam? Who called me from 831?
Cities in area code 831
Salinas, Santa Cruz, Watsonville, Hollister, Marina, Monterey, Seaside
Area codes by city
- Santa Cruz area codes
- Salinas area codes
- Monterey area codes
- Hollister area codes
- Watsonville area codes
Carriers in area code 831
Area code 831 spans 406 prefixes, about 34% wireless. Top carriers: PACIFIC BELL, ONVOY, LLC - CA, NEW CINGULAR WIRELESS PCS, LLC, CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA. Look up the carrier for a 831 number.
Other California area codes
- 209 — Stockton
- 213 — Los Angeles
- 279 — Sacramento
- 310 — Compton
- 323 — Los Angeles
- 341 — Oakland
- 350 — Stockton
- 357 — Fresno
- 369 — Santa Rosa
- 408 — San Jose
- 415 — San Francisco
- 424 — Compton
- 442 — Victorville
- 510 — Oakland
- 530 — Marysville
- 559 — Fresno
- 562 — Long Beach
- 619 — San Diego
- 626 — Alhambra
- 628 — San Francisco
- 650 — Palo Alto
- 657 — Anaheim
- 661 — Bakersfield
- 669 — San Jose
- 707 — Santa Rosa
- 714 — Anaheim
- 738 — Los Angeles
- 747 — San Fernando
- 760 — Oceanside
- 805 — Oxnard
- 818 — Van Nuys
- 820 — Camarillo
- 837 — Redding
- 840 — Pomona
- 858 — San Diego
- 909 — Ontario
- 916 — Sacramento
- 925 — Concord
- 949 — Irvine
- 951 — Riverside
Nearby area codes
Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of June 20, 2026. Refreshed monthly.