| 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 |
|---|---|---|---|
| 707-200 | Napa | Saint Helena, CA | Teleport Communications Group - San Francisco |
| 707-201 | Solano | Dixon, CA | American Messaging (am) |
| 707-202 | Mendocino | Mendocino, CA | Broadwing Communications |
| 707-204 | Napa | Yountville, CA | Broadwing Communications |
| 707-205 | Contra Costa | Walnut Creek, CA | Level 3 Communications |
| 707-206 | Sonoma | Santa Rosa, CA | Pacific Bell |
| 707-207 | Solano | Fairfield, CA | Pacific Bell |
| 707-208 | Solano | Fairfield, CA | Sprint Spectrum L.p. |
| 707-212 | Solano | Vacaville, CA | American Messaging (am) |
| 707-213 | Solano | Vallejo, CA | American Messaging (am) |
| 707-214 | Napa | Napa, CA | American Messaging (am) |
| 707-215 | Humboldt | Hydesville, CA | Broadwing Communications |
| 707-216 | Mendocino | Laytonville, CA | Broadwing Communications |
| 707-217 | Sonoma | Santa Rosa, CA | New Cingular Wireless PCS |
| 707-218 | Del Norte | Crescent City, CA | New Cingular Wireless PCS |
| 707-219 | Humboldt | Garberville, CA | Broadwing Communications |
| 707-220 | Mendocino | Elk, CA | Broadwing Communications |
| 707-221 | Humboldt | Bridgeville, CA | Broadwing Communications |
| 707-222 | Humboldt | Myers Flat, CA | Broadwing Communications |
| 707-223 | Humboldt | Garberville, CA | United States Cellular Corp. - California |
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.