RAMONA — CA
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| PACIFIC BELL | 9740 | 3 |
| ONVOY, LLC - CA | 649C | 2 |
| COMCAST PHONE OF CALIFORNIA, LLC | 394L | 1 |
| FIVE9, INC. | 598J | 1 |
| NEW CINGULAR WIRELESS PCS, LLC | 6010 | 1 |
Data last updated: June 25, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| PACIFIC BELL | 9740 | 3 |
| ONVOY, LLC - CA | 649C | 2 |
| COMCAST PHONE OF CALIFORNIA, LLC | 394L | 1 |
| FIVE9, INC. | 598J | 1 |
| NEW CINGULAR WIRELESS PCS, LLC | 6010 | 1 |