| 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 |
|---|---|---|---|
| 510-495 | Berkeley | Alameda | Landline |
| 510-944 | Berkeley | Alameda | Wireless |
| 510-897 | Fremont | Alameda | Landline |
| 510-573 | Fremont | Alameda | Landline |
| 510-451 | Oakland | Alameda | Landline |
| 510-381 | Oakland | Alameda | Wireless |
| 510-839 | Oakland | Alameda | Landline |
| 510-527 | Berkeley | Alameda | Landline |
| 510-893 | Oakland | Alameda | Landline |
| 510-303 | Hayward | Alameda | Wireless |
| 510-536 | Oakland | Alameda | Landline |
| 510-329 | Hayward | Alameda | Wireless |
| 510-996 | Newark | Alameda | Landline |
| 510-682 | San Francisco | San Francisco | Wireless |
| 510-684 | San Francisco | San Francisco | Wireless |
| 510-257 | Fremont | Alameda | Landline |
| 510-671 | San Francisco | San Francisco | Landline |
| 510-758 | El Sobrante | Contra Costa | Landline |
| 510-992 | Oakland | Alameda | Landline |
| 510-933 | San Jose | Santa Clara | Landline |