CLARION — IA
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| ONVOY SPECTRUM, LLC | 624H | 1 |
| T-MOBILE USA, INC. | 6529 | 1 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | 1 |
| COMMUNICATIONS 1 NETWORK, INC. - IA | 842E | 1 |
| QWEST CORPORATION | 9631 | 1 |