Area code 831 — California
Area code 831 is in California and serves Monterey County, Watsonville, Santa Cruz, Hollister. Time zone, overlays, counties and ZIP codes.
| Location | California (Monterey County, including Salinas and Monterey); San Benito County (including Hollister); and Santa Cruz County (including Santa Cruz and Watsonville) |
|---|---|
| Main places | Monterey County, Watsonville, Santa Cruz, Hollister, Monterey, Salinas |
| State | California |
| Status | In service · since 1998 |
| Time zone | Pacific · |
| Local dialing | 7 digits |
History
- Split of 408
Counties (approximate)
Merced CountyMontereyMonterey CountySan BenitoSan Benito CountySanta ClaraSanta Clara CountySanta CruzSanta Cruz CountyStanislausStanislaus County
ZIP codes in area code 831
Approximate: area code boundaries follow telephone rate centers, not ZIP codes.
93635 Los Banos93901 Salinas93902 Salinas93905 Salinas93906 Salinas93907 Salinas93908 Salinas93912 Salinas93915 Salinas93920 Big Sur93921 Carmel By The Sea93922 Carmel93923 Carmel93924 Carmel Valley93925 Chualar93926 Gonzales93927 Greenfield93928 Jolon93930 King City93933 Marina93940 Monterey93942 Monterey93943 Monterey93944 Monterey93950 Pacific Grove93953 Pebble Beach93954 San Lucas93955 Seaside93960 Soledad93962 Spreckels95001 Aptos95003 Aptos95004 Aromas95005 Ben Lomond95006 Boulder Creek95007 Brookdale95010 Capitola95012 Castroville95017 Davenport95018 Felton
Format a 831 number
US numbers are written as (831) 555-0123 or 831-555-0123. From outside the US, dial +1 831 555 0123.
Is a call from 831 a scam?
An area code only tells you where a number was assigned. Caller ID can be faked (“spoofed”), so do not trust a call just because the area code looks local. Never share codes or payment details with unexpected callers.
Sources: NANPA via NumberResearch.org (CC BY 4.0); place names and history from Wikipedia (CC BY-SA 4.0). See data sources.