| 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 |
|---|---|---|---|
| 707-286 | Napa | Saint Helena, CA | Pac - West Telecomm |
| 707-287 | Napa | Napa, CA | New Cingular Wireless PCS |
| 707-288 | Sonoma | Santa Rosa, CA | Usa Mobility Wireless |
| 707-289 | Lake | Kelseyville, CA | Pac - West Telecomm |
| 707-290 | Solano | Fairfield, CA | New Cingular Wireless PCS |
| 707-291 | Sonoma | Santa Rosa, CA | Cellco Partnership DBA Verizon Wireless |
| 707-292 | Sonoma | Santa Rosa, CA | Cellco Partnership DBA Verizon Wireless |
| 707-293 | Sonoma | Santa Rosa, CA | Tw Telecom Of California Lp |
| 707-294 | Napa | Napa, CA | O1 Communications |
| 707-295 | Lake | Lower Lake, CA | New Cingular Wireless PCS |
| 707-296 | Humboldt | Eureka, CA | Cellco Partnership DBA Verizon Wireless |
| 707-297 | Solano | Benicia, CA | Metro PCS |
| 707-298 | Humboldt | Eureka, CA | Peerless Network Of California |
| 707-299 | Napa | Napa, CA | Pacific Bell |
| 707-300 | Mendocino | Boonville, CA | O1 Communications |
| 707-301 | Solano | Vacaville, CA | New Cingular Wireless PCS |
| 707-302 | Napa | Saint Helena, CA | U.s. Telepacific Corp. |
| 707-303 | Sonoma | Santa Rosa, CA | U.s. Telepacific Corp. |
| 707-304 | Sonoma | Santa Rosa, CA | Sprint Spectrum L.p. |
| 707-306 | Sonoma | Annapolis, CA | Peerless Network Of 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.