QWEST CORPORATION
222 prefixes in 503 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 503-203 | PORTLAND | 9638 | — | — |
| 503-215 | PORTLAND | 9638 | — | — |
| 503-216 | PORTLAND | 9638 | — | — |
| 503-219 | PORTLAND | 9638 | — | — |
| 503-220 | PORTLAND | 9638 | — | — |
| 503-221 | PORTLAND | 9638 | — | — |
| 503-222 | PORTLAND | 9638 | — | — |
| 503-223 | PORTLAND | 9638 | — | — |
| 503-224 | PORTLAND | 9638 | — | — |
| 503-225 | PORTLAND | 9638 | — | — |
| 503-226 | PORTLAND | 9638 | — | — |
| 503-227 | PORTLAND | 9638 | — | — |
| 503-228 | PORTLAND | 9638 | — | — |
| 503-229 | PORTLAND | 9638 | — | — |
| 503-230 | PORTLAND | 9638 | — | — |
| 503-231 | PORTLAND | 9638 | — | — |
| 503-232 | PORTLAND | 9638 | — | — |
| 503-233 | PORTLAND | 9638 | — | — |
| 503-234 | PORTLAND | 9638 | — | — |
| 503-235 | PORTLAND | 9638 | — | — |
| 503-236 | PORTLAND | 9638 | — | — |
| 503-238 | PORTLAND | 9638 | — | — |
| 503-239 | PORTLAND | 9638 | — | — |
| 503-240 | PORTLAND | 9638 | — | — |
| 503-241 | PORTLAND | 9638 | — | — |
| 503-242 | PORTLAND | 9638 | — | — |
| 503-243 | PORTLAND | 9638 | — | — |
| 503-244 | PORTLAND | 9638 | — | — |
| 503-245 | PORTLAND | 9638 | — | — |
| 503-246 | PORTLAND | 9638 | — | — |
| 503-247 | PORTLAND | 9638 | — | — |
| 503-248 | PORTLAND | 9638 | — | — |
| 503-249 | PORTLAND | 9638 | — | — |
| 503-250 | PORTLAND | 9638 | — | Yes |
| 503-251 | PORTLAND | 9638 | — | — |
| 503-252 | PORTLAND | 9638 | — | — |
| 503-253 | PORTLAND | 9638 | — | — |
| 503-254 | PORTLAND | 9638 | — | — |
| 503-255 | PORTLAND | 9638 | — | — |
| 503-256 | PORTLAND | 9638 | — | — |
| 503-257 | PORTLAND | 9638 | — | — |
| 503-258 | PORTLAND | 9638 | — | Yes |
| 503-261 | PORTLAND | 9638 | — | Yes |
| 503-262 | PORTLAND | 9638 | — | — |
| 503-273 | PORTLAND | 9638 | — | — |
| 503-274 | PORTLAND | 9638 | — | — |
| 503-275 | PORTLAND | 9638 | — | — |
| 503-276 | PORTLAND | 9638 | — | — |
| 503-279 | PORTLAND | 9638 | — | — |
| 503-280 | PORTLAND | 9638 | — | — |
| 503-281 | PORTLAND | 9638 | — | — |
| 503-282 | PORTLAND | 9638 | — | — |
| 503-283 | PORTLAND | 9638 | — | — |
| 503-284 | PORTLAND | 9638 | — | — |
| 503-285 | PORTLAND | 9638 | — | — |
| 503-286 | PORTLAND | 9638 | — | — |
| 503-287 | PORTLAND | 9638 | — | — |
| 503-288 | PORTLAND | 9638 | — | — |
| 503-289 | PORTLAND | 9638 | — | — |
| 503-291 | PORTLAND | 9638 | — | — |
| 503-292 | PORTLAND | 9638 | — | — |
| 503-293 | PORTLAND | 9638 | — | — |
| 503-294 | PORTLAND | 9638 | — | — |
| 503-295 | PORTLAND | 9638 | — | — |
| 503-296 | PORTLAND | 9638 | — | — |
| 503-297 | PORTLAND | 9638 | — | — |
| 503-299 | PORTLAND | 9638 | — | — |
| 503-304 | SALEM | 9638 | — | — |
| 503-306 | PORTLAND | 9638 | — | — |
| 503-315 | SALEM | 9638 | — | — |
| 503-316 | SALEM | 9638 | — | — |
| 503-321 | PORTLAND | 9638 | — | — |
| 503-323 | PORTLAND | 9638 | — | — |
| 503-325 | ASTORIA | 9638 | — | — |
| 503-326 | PORTLAND | 9638 | — | — |
| 503-331 | PORTLAND | 9638 | — | — |
| 503-335 | PORTLAND | 9638 | — | — |
| 503-338 | ASTORIA | 9638 | — | Yes |
| 503-340 | PORTLAND | 9638 | — | — |
| 503-346 | PORTLAND | 9638 | — | — |
| 503-353 | CLACKAMAS | 9638 | — | — |
| 503-361 | SALEM | 9638 | — | — |
| 503-362 | SALEM | 9638 | — | — |
| 503-363 | SALEM | 9638 | — | — |
| 503-364 | SALEM | 9638 | — | — |
| 503-365 | SALEM | 9638 | — | — |
| 503-366 | ST HELENS | 9638 | — | — |
| 503-370 | SALEM | 9638 | — | — |
| 503-371 | SALEM | 9638 | — | — |
| 503-373 | SALEM | 9638 | — | — |
| 503-375 | SALEM | 9638 | — | — |
| 503-378 | SALEM | 9638 | — | — |
| 503-384 | PORTLAND | 9638 | — | Yes |
| 503-390 | SALEM | 9638 | — | — |
| 503-391 | SALEM | 9638 | — | — |
| 503-393 | SALEM | 9638 | — | — |
| 503-397 | ST HELENS | 9638 | — | — |
| 503-399 | SALEM | 9638 | — | — |
| 503-401 | PORTLAND | 9638 | — | — |
| 503-402 | 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.