WILLIAMS — CA
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| CITIZENS TELECOMM DBA FRONTIER COMM GOLDEN STATE | 3402 | 1 |
| IP HORIZON LLC | 515J | 1 |
| NEW CINGULAR WIRELESS PCS, LLC | 6010 | 1 |
| RACE TELECOMMUNICATIONS, INC. - CA | 973E | 1 |