(628) 291
Prefix in MILLVALLEY, California
Prefix Details
| Area Code | 628 |
| Prefix | 291 |
| Full Number Pattern | (628) 291-XXXX |
| Rate Center | MILLVALLEY |
| State | California |
| Operating Company | NEW CINGULAR WIRELESS PCS, LLC |
| Time Zone | Pacific (PT, UTC-8) |
About the (628) 291 Prefix
The (628) 291 prefix is assigned to NEW CINGULAR WIRELESS PCS, LLC and serves the MILLVALLEY rate center in California. Phone numbers with this prefix are in the Pacific Time Zone and are part of area code 628 which covers San Francisco and surrounding areas.