| District of California area codes: 831 | |
|---|---|
| Country | United States |
| State/Province | California |
| Major City | Salinas |
| Time Zone | Pacific |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 831-675 | Monterey | Gonzales, CA | Pacific Bell |
| 831-676 | Monterey | Salinas, CA | AT&T Local |
| 831-677 | Monterey | Soledad, CA | Pac - West Telecomm |
| 831-678 | Monterey | Soledad, CA | Pacific Bell |
| 831-679 | Monterey | Chualar, CA | Pacific Bell |
| 831-682 | Monterey | Salinas, CA | Cellco Partnership DBA Verizon Wireless |
| 831-684 | Santa Cruz | Aptos, CA | Pacific Bell |
| 831-685 | Santa Cruz | Aptos, CA | Pacific Bell |
| 831-687 | Santa Cruz | Aptos, CA | Pacific Bell |
| 831-688 | Santa Cruz | Aptos, CA | Pacific Bell |
| 831-689 | Santa Cruz | Aptos, CA | Pacific Bell |
| 831-693 | Fresno | Cantua Creek, CA | Pinnacles Telephone Co. |
| 831-703 | Santa Cruz | Boulder Creek, CA | Tw Telecom Of California Lp |
| 831-704 | Santa Cruz | Felton, CA | 360networks (usa) Inc. |
| 831-705 | Monterey | Chualar, CA | U.s. Telepacific Corp. |
| 831-706 | Santa Cruz | Santa Cruz, CA | Tw Telecom Of California Lp |
| 831-707 | Santa Cruz | Watsonville, CA | Tw Telecom Of California Lp |
| 831-708 | Santa Cruz | Aptos, CA | O1 Communications |
| 831-709 | Santa Cruz | Ben Lomond, CA | Level 3 Communications |
| 831-710 | Monterey | Salinas, CA | New Cingular Wireless PCS |
There are 334 prefixes, In the code area, the major cities are Hollister, CA;Marina, CA;Monterey, CA;Salinas, CA;. The major city is Salinas.