| 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 |
|---|---|---|---|
| 510-584 | Hayward | Alameda | Landline |
| 510-262 | El Sobrante | Contra Costa | Landline |
| 510-454 | San Leandro | Alameda | Landline |
| 510-423 | Oakland | Alameda | Landline |
| 510-385 | Oakland | Alameda | Wireless |
| 510-250 | Oakland | Alameda | Landline |
| 510-730 | San Francisco | San Francisco | Landline |
| 510-427 | Hayward | Alameda | Wireless |
| 510-539 | Oakland | Alameda | Wireless |
| 510-903 | San Francisco | San Francisco | Landline |
| 510-360 | Fremont | Alameda | Landline |
| 510-653 | Emeryville | Alameda | Landline |
| 510-957 | San Francisco | San Francisco | Landline |
| 510-439 | Oakland | Alameda | Landline |
| 510-838 | San Francisco | San Francisco | Landline |
| 510-376 | Newark | Alameda | Wireless |
| 510-704 | Berkeley | Alameda | Landline |
| 510-610 | Oakland | Alameda | Wireless |
| 510-630 | Oakland | Alameda | Wireless |
| 510-979 | Fremont | Alameda | Landline |