| 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 |
|---|---|---|---|
| 510-468 | Newark | Alameda | Wireless |
| 510-755 | Hayward | Alameda | Wireless |
| 510-281 | Oakland | Alameda | Landline |
| 510-783 | Hayward | Alameda | Landline |
| 510-474 | Fremont | Alameda | Landline |
| 510-289 | Oakland | Alameda | Wireless |
| 510-379 | Oakland | Alameda | Landline |
| 510-382 | Oakland | Alameda | Landline |
| 510-599 | Oakland | Alameda | Wireless |
| 510-683 | Fremont | Alameda | Landline |
| 510-566 | Hayward | Alameda | Landline |
| 510-748 | Alameda | Alameda | Landline |
| 510-497 | Fremont | Alameda | Landline |
| 510-952 | Fremont | Alameda | Wireless |
| 510-777 | Oakland | Alameda | Landline |
| 510-938 | Newark | Alameda | Wireless |
| 510-309 | El Sobrante | Contra Costa | Wireless |
| 510-778 | Richmond | Contra Costa | Landline |
| 510-417 | El Sobrante | Contra Costa | Wireless |
| 510-860 | Richmond | Contra Costa | Landline |