QWEST CORPORATION
222 prefixes in 503 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 503-865 | PORTLAND | 9638 | — | — |
| 503-872 | PORTLAND | 9638 | — | — |
| 503-886 | PORTLAND | 9638 | — | Yes |
| 503-892 | PORTLAND | 9638 | — | — |
| 503-909 | PORTLAND | 9638 | — | — |
| 503-916 | PORTLAND | 9638 | — | Yes |
| 503-934 | SALEM | 9638 | 2005-09-12 | Yes |
| 503-944 | PORTLAND | 9638 | — | Yes |
| 503-945 | SALEM | 9638 | — | — |
| 503-947 | SALEM | 9638 | — | — |
| 503-948 | PORTLAND | 9638 | — | — |
| 503-952 | PORTLAND | 9638 | — | Yes |
| 503-962 | PORTLAND | 9638 | — | Yes |
| 503-963 | PORTLAND | 9638 | — | — |
| 503-973 | PORTLAND | 9638 | — | — |
| 503-977 | PORTLAND | 9638 | — | — |
| 503-978 | PORTLAND | 9638 | — | — |
| 503-980 | WOODBURN | 9638 | — | Yes |
| 503-981 | WOODBURN | 9638 | — | — |
| 503-982 | WOODBURN | 9638 | — | — |
| 503-986 | SALEM | 9638 | — | — |
| 503-988 | PORTLAND | 9638 | — | — |
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.