QWEST CORPORATION
97 prefixes in 623 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 623-207 | PHOENIX | 9636 | 2008-06-05 | Yes |
| 623-214 | PHOENIX | 9636 | — | — |
| 623-222 | PHOENIX | 9636 | 2007-03-29 | Yes |
| 623-232 | PHOENIX | 9636 | 2016-10-19 | Yes |
| 623-234 | PHOENIX | 9636 | 2007-12-31 | Yes |
| 623-235 | PHOENIX | 9636 | 2016-05-10 | Yes |
| 623-245 | PHOENIX | 9636 | — | — |
| 623-247 | PHOENIX | 9636 | — | — |
| 623-248 | PHOENIX | 9636 | 2019-02-14 | Yes |
| 623-285 | PHOENIX | 9636 | 2015-05-21 | Yes |
| 623-327 | PHOENIX | 9636 | — | Yes |
| 623-328 | PHOENIX | 9636 | — | Yes |
| 623-333 | PHOENIX | 9636 | 2006-08-29 | Yes |
| 623-334 | PHOENIX | 9636 | — | — |
| 623-362 | PHOENIX | 9636 | — | — |
| 623-374 | PHOENIX | 9636 | — | Yes |
| 623-376 | PHOENIX | 9636 | — | — |
| 623-386 | PHOENIX | 9636 | — | — |
| 623-388 | PHOENIX | 9636 | — | Yes |
| 623-393 | PHOENIX | 9636 | — | Yes |
| 623-412 | PHOENIX | 9636 | — | — |
| 623-434 | PHOENIX | 9636 | — | — |
| 623-435 | PHOENIX | 9636 | — | — |
| 623-445 | PHOENIX | 9636 | — | Yes |
| 623-463 | PHOENIX | 9636 | — | Yes |
| 623-465 | PHOENIX | 9636 | — | — |
| 623-471 | PHOENIX | 9636 | 2019-08-26 | Yes |
| 623-474 | PHOENIX | 9636 | — | — |
| 623-478 | PHOENIX | 9636 | — | Yes |
| 623-486 | PHOENIX | 9636 | — | — |
| 623-487 | PHOENIX | 9636 | — | — |
| 623-492 | PHOENIX | 9636 | — | — |
| 623-516 | PHOENIX | 9636 | — | — |
| 623-523 | PHOENIX | 9636 | — | Yes |
| 623-524 | PHOENIX | 9636 | 2010-07-06 | Yes |
| 623-535 | PHOENIX | 9636 | — | — |
| 623-536 | PHOENIX | 9636 | — | — |
| 623-537 | PHOENIX | 9636 | — | Yes |
| 623-544 | PHOENIX | 9636 | — | — |
| 623-546 | PHOENIX | 9636 | — | — |
| 623-547 | PHOENIX | 9636 | — | Yes |
| 623-551 | PHOENIX | 9636 | — | — |
| 623-556 | PHOENIX | 9636 | — | Yes |
| 623-561 | PHOENIX | 9636 | — | — |
| 623-566 | PHOENIX | 9636 | — | — |
| 623-572 | PHOENIX | 9636 | — | — |
| 623-580 | PHOENIX | 9636 | — | — |
| 623-581 | PHOENIX | 9636 | — | Yes |
| 623-582 | PHOENIX | 9636 | — | — |
| 623-583 | PHOENIX | 9636 | — | — |
| 623-584 | PHOENIX | 9636 | — | — |
| 623-587 | PHOENIX | 9636 | — | — |
| 623-643 | PHOENIX | 9636 | — | Yes |
| 623-691 | PHOENIX | 9636 | — | Yes |
| 623-742 | PHOENIX | 9636 | — | Yes |
| 623-772 | PHOENIX | 9636 | — | — |
| 623-773 | PHOENIX | 9636 | — | — |
| 623-776 | PHOENIX | 9636 | — | Yes |
| 623-780 | PHOENIX | 9636 | — | — |
| 623-815 | PHOENIX | 9636 | — | — |
| 623-825 | PHOENIX | 9636 | — | — |
| 623-832 | PHOENIX | 9636 | 2010-07-06 | Yes |
| 623-842 | PHOENIX | 9636 | — | — |
| 623-845 | PHOENIX | 9636 | — | Yes |
| 623-846 | PHOENIX | 9636 | — | — |
| 623-847 | PHOENIX | 9636 | — | — |
| 623-848 | PHOENIX | 9636 | — | — |
| 623-849 | PHOENIX | 9636 | — | — |
| 623-853 | PHOENIX | 9636 | — | Yes |
| 623-856 | PHOENIX | 9636 | — | — |
| 623-866 | PHOENIX | 9636 | — | Yes |
| 623-869 | PHOENIX | 9636 | — | — |
| 623-872 | PHOENIX | 9636 | — | — |
| 623-873 | PHOENIX | 9636 | — | — |
| 623-875 | PHOENIX | 9636 | — | — |
| 623-876 | PHOENIX | 9636 | 2001-04-24 | — |
| 623-877 | PHOENIX | 9636 | — | — |
| 623-878 | PHOENIX | 9636 | — | — |
| 623-879 | PHOENIX | 9636 | — | Yes |
| 623-882 | PHOENIX | 9636 | — | Yes |
| 623-907 | PHOENIX | 9636 | — | — |
| 623-915 | PHOENIX | 9636 | — | — |
| 623-925 | PHOENIX | 9636 | — | — |
| 623-930 | PHOENIX | 9636 | — | — |
| 623-931 | PHOENIX | 9636 | — | — |
| 623-932 | PHOENIX | 9636 | — | — |
| 623-933 | PHOENIX | 9636 | — | — |
| 623-934 | PHOENIX | 9636 | — | — |
| 623-935 | PHOENIX | 9636 | — | — |
| 623-936 | PHOENIX | 9636 | — | — |
| 623-937 | PHOENIX | 9636 | — | — |
| 623-939 | PHOENIX | 9636 | — | — |
| 623-972 | PHOENIX | 9636 | — | — |
| 623-974 | PHOENIX | 9636 | — | — |
| 623-975 | PHOENIX | 9636 | — | — |
| 623-977 | PHOENIX | 9636 | — | — |
| 623-979 | PHOENIX | 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.