DULZURA — CA
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| AT&T ENTERPRISES, LLC | 516C | 1 |
| NEW CINGULAR WIRELESS PCS, LLC | 6010 | 1 |
| ONVOY, LLC - CA | 649C | 1 |
| U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | 1 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7147 | 1 |