BULLHEADCY — AZ
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| T-MOBILE USA, INC. | 6529 | 5 |
| CITIZENS UTILITIES RURAL DBA FRONTIER UT RURAL | 2172 | 3 |
| NEW CINGULAR WIRELESS PCS, LLC | 6010 | 3 |
| CSC VOICE, LLC | 612K | 3 |
| ONVOY, LLC - AZ | 630E | 2 |