| General Information about Area Code 510 | |
|---|---|
| Country | United States |
| State / Province / Territory | California |
| Major City | Oakland |
| Time Zone | Pacific (UTC-08:00) |
| Prefix | Primary City | County | Phone Type |
|---|---|---|---|
| 510-503 | Oakland | Alameda | Wireless |
| 510-640 | El Sobrante | Contra Costa | Wireless |
| 510-540 | Berkeley | Alameda | Landline |
| 510-254 | San Francisco | San Francisco | Landline |
| 510-978 | Oakland | Alameda | Landline |
| 510-343 | Oakland | Alameda | Landline |
| 510-859 | Oakland | Alameda | Landline |
| 510-387 | Oakland | Alameda | Wireless |
| 510-418 | Oakland | Alameda | Wireless |
| 510-829 | Oakland | Alameda | Wireless |
| 510-261 | Oakland | Alameda | Landline |
| 510-709 | Newark | Alameda | Landline |
| 510-824 | Fremont | Alameda | Landline |
| 510-667 | San Leandro | Alameda | Landline |
| 510-679 | Berkeley | Alameda | Wireless |
| 510-608 | Fremont | Alameda | Landline |
| 510-564 | San Francisco | San Francisco | Landline |
| 510-735 | Emeryville | Alameda | Landline |
| 510-910 | Oakland | Alameda | Wireless |
| 510-678 | San Leandro | Alameda | Landline |