| 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 |
|---|---|---|---|
| 510-463 | Oakland | Alameda | Landline |
| 510-459 | San Francisco | San Francisco | Wireless |
| 510-582 | Castro Valley | Alameda | Landline |
| 510-279 | Fremont | Alameda | Landline |
| 510-629 | Oakland | Alameda | Landline |
| 510-925 | Hayward | Alameda | Landline |
| 510-922 | Emeryville | Alameda | Landline |
| 510-355 | Oakland | Alameda | Landline |
| 510-208 | Oakland | Alameda | Landline |
| 510-837 | Richmond | Contra Costa | Landline |
| 510-908 | Oakland | Alameda | Wireless |
| 510-761 | Oakland | Alameda | Wireless |
| 510-216 | Newark | Alameda | Wireless |
| 510-657 | Fremont | Alameda | Landline |
| 510-982 | San Francisco | San Francisco | Landline |
| 510-579 | Newark | Alameda | Wireless |
| 510-884 | Castro Valley | Alameda | Wireless |
| 510-550 | Oakland | Alameda | Landline |
| 510-475 | Union City | Alameda | Landline |
| 510-222 | El Sobrante | Contra Costa | Landline |