BELVEDERE — CA
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| T-MOBILE USA, INC. | 6529 | 10 |
| FRACTEL, LLC | 965H | 3 |
| ONVOY, LLC - CA | 649C | 2 |
| PACIFIC BELL | 9740 | 2 |
| EXIANT COMMUNICATIONS LLC | 114J | 1 |
Data last updated: March 10, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| T-MOBILE USA, INC. | 6529 | 10 |
| FRACTEL, LLC | 965H | 3 |
| ONVOY, LLC - CA | 649C | 2 |
| PACIFIC BELL | 9740 | 2 |
| EXIANT COMMUNICATIONS LLC | 114J | 1 |