(510) 257
Prefix in FRNK OLIVR, California
Prefix Details
| Area Code | 510 |
| Prefix | 257 |
| Full Number Pattern | (510) 257-XXXX |
| Rate Center | FRNK OLIVR |
| State | California |
| Operating Company | TELEPORT COMMUNICATIONS AMERICA, LLC - CA |
| Time Zone | Pacific (PT, UTC-8) |
About the (510) 257 Prefix
The (510) 257 prefix is assigned to TELEPORT COMMUNICATIONS AMERICA, LLC - CA and serves the FRNK OLIVR rate center in California. Phone numbers with this prefix are in the Pacific Time Zone and are part of area code 510 which covers Oakland and surrounding areas.