| District of California area codes: 831 | |
|---|---|
| Country | United States |
| State/Province | California |
| Major City | Salinas |
| Time Zone | Pacific |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 831-234 | Santa Cruz | Santa Cruz, CA | Cellco Partnership DBA Verizon Wireless |
| 831-235 | Monterey | Salinas, CA | Cellco Partnership DBA Verizon Wireless |
| 831-236 | Monterey | Monterey, CA | Cellco Partnership DBA Verizon Wireless |
| 831-237 | Monterey | Soledad, CA | O1 Communications |
| 831-238 | Monterey | Carmel, CA | New Cingular Wireless PCS |
| 831-239 | Santa Cruz | Santa Cruz, CA | New Cingular Wireless PCS |
| 831-240 | Monterey | Salinas, CA | T-mobile Usa |
| 831-241 | Monterey | Salinas, CA | AT&T Local |
| 831-242 | Monterey | Monterey, CA | Pacific Bell |
| 831-244 | Monterey | Big Sur, CA | O1 Communications |
| 831-245 | San Benito | Hollister, CA | O1 Communications |
| 831-246 | Santa Cruz | Ben Lomond, CA | Cellco Partnership DBA Verizon Wireless |
| 831-247 | Santa Cruz | Santa Cruz, CA | Cellco Partnership DBA Verizon Wireless |
| 831-249 | Monterey | Big Sur, CA | Sbc Internet Services |
| 831-250 | Monterey | Carmel, CA | O1 Communications |
| 831-251 | Santa Cruz | Aptos, CA | New Cingular Wireless PCS |
| 831-252 | Santa Cruz | Ben Lomond, CA | New Cingular Wireless PCS |
| 831-254 | Santa Cruz | Watsonville, CA | New Cingular Wireless PCS |
| 831-255 | Santa Cruz | Santa Cruz, CA | North County Communications Corp. |
| 831-261 | 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.