| District of California area codes: 707 | |
|---|---|
| Country | United States |
| State/Province | California |
| Major City | Santa Rosa |
| Time Zone | Pacific (UTC-08:00) |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 707-435 | Solano | Fairfield, CA | Pacific Bell |
| 707-436 | Solano | Fairfield, CA | Pacific Bell |
| 707-437 | Solano | Fairfield, CA | Pacific Bell |
| 707-438 | Solano | Fairfield, CA | Pacific Bell |
| 707-439 | Solano | Fairfield, CA | Pacific Bell |
| 707-440 | Humboldt | Eureka, CA | Pac - West Telecomm |
| 707-441 | Humboldt | Eureka, CA | Pacific Bell |
| 707-442 | Humboldt | Eureka, CA | Pacific Bell |
| 707-443 | Humboldt | Eureka, CA | Pacific Bell |
| 707-444 | Humboldt | Eureka, CA | Pacific Bell |
| 707-445 | Humboldt | Eureka, CA | Pacific Bell |
| 707-446 | Solano | Vacaville, CA | Pacific Bell |
| 707-447 | Solano | Vacaville, CA | Pacific Bell |
| 707-448 | Solano | Vacaville, CA | Pacific Bell |
| 707-449 | Solano | Vacaville, CA | Pacific Bell |
| 707-450 | Solano | Vacaville, CA | Pacific Bell |
| 707-451 | Solano | Vacaville, CA | Pacific Bell |
| 707-452 | Solano | Vacaville, CA | Pacific Bell |
| 707-453 | Solano | Vacaville, CA | Pacific Bell |
| 707-454 | Solano | Vacaville, CA | Pacific Bell |
There are 677 prefixes, In the code area, the major cities are Benicia, CA;Eureka, CA;Fairfield, CA;Napa, CA;Peta. The major city is Santa Rosa.