DOS PALOS — CA
Data last updated: August 31, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| FRONTIER CALIFORNIA INC. | 4420 | 3 |
| ONVOY, LLC - CA | 649C | 3 |
| COMMIO, LLC | 939H | 2 |
Data last updated: August 31, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| FRONTIER CALIFORNIA INC. | 4420 | 3 |
| ONVOY, LLC - CA | 649C | 3 |
| COMMIO, LLC | 939H | 2 |