Search numbers reported to the U.S. Federal Commissions beginning with area code 510
Area code 510 belongs to CALIFORNIA, UNITED STATES. It is a General Purpose Code which was placed in service on 1991-09-02.
| Type | General Purpose Code |
| Use | Geograpic |
| Location | CALIFORNIA |
| Country | UNITED STATES |
| Service Date | 1991-09-02 |
| Service |