(657) 257
Prefix in WESTMINSTR, California
Prefix Details
| Area Code | 657 |
| Prefix | 257 |
| Full Number Pattern | (657) 257-XXXX |
| Rate Center | WESTMINSTR |
| State | California |
| Operating Company | T-MOBILE USA, INC. |
| Time Zone | Pacific (PT, UTC-8) |
About the (657) 257 Prefix
The (657) 257 prefix is assigned to T-MOBILE USA, INC. and serves the WESTMINSTR rate center in California. Phone numbers with this prefix are in the Pacific Time Zone and are part of area code 657 which covers Anaheim and surrounding areas.