DALLAS CTR — IA
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| ONVOY, LLC - IA | 221F | 2 |
| QWEST CORPORATION | 9631 | 1 |
| BANDWIDTH.COM CLEC, LLC - IA | 985E | 1 |
Data last updated: June 25, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| ONVOY, LLC - IA | 221F | 2 |
| QWEST CORPORATION | 9631 | 1 |
| BANDWIDTH.COM CLEC, LLC - IA | 985E | 1 |