QWEST CORPORATION
449 prefixes in 303 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 303-869 | DENVER | 9636 | — | — |
| 303-871 | DENVER | 9636 | — | — |
| 303-873 | DENVER | 9636 | — | — |
| 303-889 | DENVER | 9636 | — | Yes |
| 303-892 | DENVER | 9636 | — | — |
| 303-893 | DENVER | 9636 | — | — |
| 303-894 | DENVER | 9636 | — | — |
| 303-896 | DENVER | 9636 | — | — |
| 303-899 | DENVER | 9636 | — | — |
| 303-904 | DENVER | 9636 | — | — |
| 303-914 | DENVER | 9636 | — | — |
| 303-920 | DENVER | 9636 | — | — |
| 303-922 | DENVER | 9636 | — | — |
| 303-924 | DENVER | 9636 | — | — |
| 303-925 | DENVER | 9636 | — | — |
| 303-926 | DENVER | 9636 | — | — |
| 303-930 | DENVER | 9636 | — | — |
| 303-932 | DENVER | 9636 | — | — |
| 303-933 | DENVER | 9636 | — | — |
| 303-934 | DENVER | 9636 | — | — |
| 303-935 | DENVER | 9636 | — | — |
| 303-936 | DENVER | 9636 | — | — |
| 303-937 | DENVER | 9636 | — | — |
| 303-938 | DENVER | 9636 | — | — |
| 303-939 | DENVER | 9636 | — | — |
| 303-940 | DENVER | 9636 | — | — |
| 303-948 | DENVER | 9636 | — | — |
| 303-964 | DENVER | 9636 | — | — |
| 303-965 | DENVER | 9636 | — | — |
| 303-966 | DENVER | 9636 | — | — |
| 303-967 | DENVER | 9636 | — | Yes |
| 303-969 | DENVER | 9636 | — | — |
| 303-971 | DENVER | 9636 | — | — |
| 303-972 | DENVER | 9636 | — | — |
| 303-973 | DENVER | 9636 | — | — |
| 303-975 | DENVER | 9636 | — | Yes |
| 303-977 | DENVER | 9636 | — | — |
| 303-978 | DENVER | 9636 | — | — |
| 303-979 | DENVER | 9636 | — | — |
| 303-980 | DENVER | 9636 | — | — |
| 303-982 | DENVER | 9636 | — | — |
| 303-984 | DENVER | 9636 | — | — |
| 303-985 | DENVER | 9636 | — | — |
| 303-986 | DENVER | 9636 | — | — |
| 303-987 | DENVER | 9636 | — | — |
| 303-988 | DENVER | 9636 | — | — |
| 303-989 | DENVER | 9636 | — | — |
| 303-992 | DENVER | 9636 | — | — |
| 303-998 | 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.