| 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 |
|---|---|---|---|
| 510-436 | Oakland | Alameda | Landline |
| 510-850 | Oakland | Alameda | Wireless |
| 510-676 | Newark | Alameda | Wireless |
| 510-852 | Oakland | Alameda | Wireless |
| 510-397 | Hayward | Alameda | Landline |
| 510-270 | Sunnyvale | Santa Clara | Landline |
| 510-638 | Oakland | Alameda | Landline |
| 510-508 | Oakland | Alameda | Wireless |
| 510-315 | Hayward | Alameda | Landline |
| 510-786 | Hayward | Alameda | Landline |
| 510-494 | Fremont | Alameda | Landline |
| 510-819 | Oakland | Alameda | Wireless |
| 510-781 | Hayward | Alameda | Landline |
| 510-672 | Richmond | Contra Costa | Wireless |
| 510-390 | Oakland | Alameda | Wireless |
| 510-353 | Fremont | Alameda | Landline |
| 510-646 | San Francisco | San Francisco | Landline |
| 510-394 | Oakland | Alameda | Landline |
| 510-225 | San Francisco | San Francisco | Landline |
| 510-288 | Oakland | Alameda | Landline |