QWEST CORPORATION
103 prefixes in 720 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 720-972 | DENVER | 9636 | 2002-04-23 | — |
| 720-977 | DENVER | 9636 | — | — |
| 720-981 | DENVER | 9636 | — | — |
These are initial assignees from NANPA CO-code records — because of number portability, the current serving carrier of individual numbers may differ. Bulk export requires a membership.