SONOMA — CA
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| PACIFIC BELL | 9740 | 5 |
| ONVOY, LLC - CA | 649C | 3 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | 2 |
| SHELCOMM | 0051 | 1 |
| WIDE VOICE, LLC - CA | 252F | 1 |
Data last updated: June 25, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| PACIFIC BELL | 9740 | 5 |
| ONVOY, LLC - CA | 649C | 3 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | 2 |
| SHELCOMM | 0051 | 1 |
| WIDE VOICE, LLC - CA | 252F | 1 |