QWEST CORPORATION
103 prefixes in 720 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 720-200 | DENVER | 9636 | — | — |
| 720-242 | DENVER | 9636 | 2008-10-09 | Yes |
| 720-264 | DENVER | 9636 | — | — |
| 720-267 | DENVER | 9636 | — | — |
| 720-268 | DENVER | 9636 | — | — |
| 720-283 | DENVER | 9636 | — | — |
| 720-304 | DENVER | 9636 | — | Yes |
| 720-321 | DENVER | 9636 | 2008-05-29 | Yes |
| 720-322 | DENVER | 9636 | — | Yes |
| 720-337 | DENVER | 9636 | 2009-02-18 | Yes |
| 720-344 | DENVER | 9636 | — | — |
| 720-348 | DENVER | 9636 | — | — |
| 720-359 | DENVER | 9636 | — | — |
| 720-362 | DENVER | 9636 | 2007-06-06 | Yes |
| 720-374 | DENVER | 9636 | — | — |
| 720-406 | DENVER | 9636 | — | — |
| 720-423 | DENVER | 9636 | 2004-04-22 | Yes |
| 720-424 | DENVER | 9636 | 2004-04-22 | Yes |
| 720-426 | DENVER | 9636 | 2010-04-20 | Yes |
| 720-433 | DENVER | 9636 | — | Yes |
| 720-444 | DENVER | 9636 | — | — |
| 720-455 | DENVER | 9636 | 2010-07-02 | Yes |
| 720-482 | DENVER | 9636 | — | — |
| 720-488 | DENVER | 9636 | — | — |
| 720-489 | DENVER | 9636 | — | — |
| 720-493 | DENVER | 9636 | — | — |
| 720-494 | LONGMONT | 9636 | — | — |
| 720-497 | DENVER | 9636 | — | — |
| 720-516 | DENVER | 9636 | 2017-07-21 | Yes |
| 720-523 | DENVER | 9636 | 2010-05-24 | Yes |
| 720-524 | DENVER | 9636 | — | Yes |
| 720-528 | DENVER | 9636 | — | — |
| 720-529 | DENVER | 9636 | — | — |
| 720-536 | DENVER | 9636 | — | Yes |
| 720-540 | DENVER | 9636 | — | — |
| 720-542 | DENVER | 9636 | — | Yes |
| 720-544 | DENVER | 9636 | — | Yes |
| 720-553 | DENVER | 9636 | 2012-06-22 | Yes |
| 720-554 | DENVER | 9636 | — | — |
| 720-558 | DENVER | 9636 | 2002-03-13 | — |
| 720-561 | DENVER | 9636 | 2008-04-18 | Yes |
| 720-562 | DENVER | 9636 | — | — |
| 720-563 | DENVER | 9636 | — | Yes |
| 720-564 | DENVER | 9636 | — | — |
| 720-565 | DENVER | 9636 | — | — |
| 720-566 | DENVER | 9636 | — | — |
| 720-568 | DENVER | 9636 | 2001-02-27 | Yes |
| 720-570 | DENVER | 9636 | — | Yes |
| 720-578 | DENVER | 9636 | — | — |
| 720-622 | DENVER | 9636 | — | Yes |
| 720-627 | DENVER | 9636 | 2012-03-06 | Yes |
| 720-652 | LONGMONT | 9636 | — | — |
| 720-685 | DENVER | 9636 | — | Yes |
| 720-718 | LONGMONT | 9636 | 2016-12-19 | Yes |
| 720-733 | DENVER | 9636 | — | — |
| 720-744 | DENVER | 9636 | — | Yes |
| 720-746 | DENVER | 9636 | — | Yes |
| 720-747 | DENVER | 9636 | — | — |
| 720-748 | DENVER | 9636 | — | — |
| 720-777 | DENVER | 9636 | 2006-02-09 | Yes |
| 720-833 | DENVER | 9636 | — | Yes |
| 720-842 | DENVER | 9636 | — | Yes |
| 720-847 | DENVER | 9636 | 2003-11-05 | Yes |
| 720-848 | DENVER | 9636 | — | — |
| 720-851 | DENVER | 9636 | — | — |
| 720-852 | DENVER | 9636 | — | — |
| 720-854 | DENVER | 9636 | — | Yes |
| 720-855 | DENVER | 9636 | — | Yes |
| 720-857 | DENVER | 9636 | — | — |
| 720-858 | DENVER | 9636 | — | — |
| 720-859 | DENVER | 9636 | — | — |
| 720-864 | LONGMONT | 9636 | — | Yes |
| 720-870 | DENVER | 9636 | — | — |
| 720-872 | DENVER | 9636 | — | — |
| 720-873 | DENVER | 9636 | — | — |
| 720-874 | DENVER | 9636 | — | — |
| 720-875 | DENVER | 9636 | — | — |
| 720-876 | DENVER | 9636 | — | Yes |
| 720-884 | DENVER | 9636 | — | Yes |
| 720-886 | DENVER | 9636 | — | — |
| 720-887 | DENVER | 9636 | — | — |
| 720-890 | DENVER | 9636 | — | — |
| 720-895 | DENVER | 9636 | — | — |
| 720-898 | DENVER | 9636 | — | — |
| 720-904 | DENVER | 9636 | — | — |
| 720-917 | DENVER | 9636 | — | Yes |
| 720-922 | DENVER | 9636 | — | — |
| 720-924 | DECKERS | 9636 | — | Yes |
| 720-929 | DENVER | 9636 | — | Yes |
| 720-931 | DENVER | 9636 | — | — |
| 720-932 | DENVER | 9636 | — | — |
| 720-941 | DENVER | 9636 | — | — |
| 720-942 | DENVER | 9636 | — | — |
| 720-944 | DENVER | 9636 | — | — |
| 720-945 | DENVER | 9636 | — | Yes |
| 720-946 | DENVER | 9636 | — | — |
| 720-947 | DENVER | 9636 | — | Yes |
| 720-956 | DENVER | 9636 | — | — |
| 720-962 | DENVER | 9636 | — | — |
| 720-963 | 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.