| General Information about Area Code 831 | |
|---|---|
| Country | United States |
| State / Province / Territory | California |
| Major City | Santa Cruz |
| Time Zone | Pacific (UTC-08:00) |
| Prefix | Primary City | County | Phone Type |
|---|---|---|---|
| 831-597 | Salinas | Monterey | Landline |
| 831-291 | Santa Cruz | Santa Cruz | Wireless |
| 831-212 | Santa Cruz | Santa Cruz | Wireless |
| 831-249 | Big Sur | Monterey | Landline |
| 831-751 | Salinas | Monterey | Landline |
| 831-899 | Monterey | Monterey | Landline |
| 831-218 | Ben Lomond | Santa Cruz | Landline |
| 831-623 | Aromas | Monterey | Landline |
| 831-652 | Carmel Valley | Monterey | Landline |
| 831-319 | Watsonville | Santa Cruz | Landline |
| 831-603 | Aptos | Santa Cruz | Landline |
| 831-375 | Monterey | Monterey | Landline |
| 831-632 | Castroville | Monterey | Landline |
| 831-658 | Monterey | Monterey | Landline |
| 831-902 | Tres Pinos | San Benito | Wireless |
| 831-267 | Big Sur | Monterey | Landline |
| 831-646 | Monterey | Monterey | Landline |
| 831-708 | Aptos | Santa Cruz | Landline |
| 831-320 | Salinas | Monterey | Wireless |
| 831-595 | Salinas | Monterey | Wireless |