| District of California area codes: 408 | |
|---|---|
| Country | United States |
| State/Province | California |
| Major City | San Jose |
| Time Zone | Pacific (UTC-08:00) |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 408-301 | Santa Clara | San Jose, CA | Usa Mobility Wireless |
| 408-302 | Santa Clara | San Jose, CA | American Messaging Services |
| 408-303 | Santa Clara | San Jose, CA | American Messaging Services |
| 408-304 | Santa Clara | San Jose, CA | American Messaging Services |
| 408-305 | Santa Clara | San Jose, CA | Usa Mobility Wireless |
| 408-306 | Santa Clara | Sunnyvale, CA | New Cingular Wireless PCS |
| 408-307 | Santa Clara | San Jose, CA | New Cingular Wireless PCS |
| 408-308 | Santa Clara | San Jose, CA | Usa Mobility Wireless |
| 408-309 | Santa Clara | San Jose, CA | Cellco Partnership DBA Verizon Wireless |
| 408-310 | Santa Clara | Morgan Hill, CA | T-mobile Usa |
| 408-312 | Santa Clara | Sunnyvale, CA | Xo California |
| 408-313 | Santa Clara | San Jose, CA | Cellco Partnership DBA Verizon Wireless |
| 408-314 | Santa Clara | San Jose, CA | Cellco Partnership DBA Verizon Wireless |
| 408-315 | Santa Clara | San Jose, CA | Cellco Partnership DBA Verizon Wireless |
| 408-316 | Santa Clara | San Jose, CA | Cellco Partnership DBA Verizon Wireless |
| 408-317 | Santa Clara | San Jose, CA | Pac - West Telecomm |
| 408-318 | Santa Clara | San Jose, CA | Cellco Partnership DBA Verizon Wireless |
| 408-319 | Monterey | Salinas, CA | Cellco Partnership DBA Verizon Wireless |
| 408-320 | Santa Clara | San Jose, CA | Sbc Internet Services |
| 408-321 | Santa Clara | San Jose, CA | Pacific Bell |
There are 786 prefixes, In the code area, the major cities are Campbell, CA;Gilroy, CA;Los Gatos, CA;Milpitas, CA. The major city is San Jose.