| 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 |
|---|---|---|---|
| 510-284 | Fremont | Alameda | Landline |
| 510-651 | Fremont | Alameda | Landline |
| 510-876 | Hayward | Alameda | Landline |
| 510-542 | San Francisco | San Francisco | Landline |
| 510-344 | Fremont | Alameda | Landline |
| 510-402 | Newark | Alameda | Landline |
| 510-347 | San Leandro | Alameda | Landline |
| 510-752 | Emeryville | Alameda | Landline |
| 510-914 | Oakland | Alameda | Wireless |
| 510-286 | Oakland | Alameda | Landline |
| 510-543 | San Francisco | San Francisco | Wireless |
| 510-917 | Oakland | Alameda | Wireless |
| 510-359 | Hayward | Alameda | Wireless |
| 510-332 | Oakland | Alameda | Wireless |
| 510-213 | Oakland | Alameda | Wireless |
| 510-728 | Castro Valley | Alameda | Landline |
| 510-553 | Oakland | Alameda | Landline |
| 510-701 | Oakland | Alameda | Wireless |
| 510-802 | Oakland | Alameda | Wireless |
| 510-572 | Fremont | Alameda | Landline |