PARKFIELD — CA
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| FRONTIER CALIFORNIA INC. | 4420 | 1 |
| TWILIO INTERNATIONAL, INC. | 506J | 1 |
Data last updated: March 10, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| FRONTIER CALIFORNIA INC. | 4420 | 1 |
| TWILIO INTERNATIONAL, INC. | 506J | 1 |