QWEST CORPORATION
99 prefixes in 319 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 319-221 | CEDAR RPDS | 9631 | — | — |
| 319-222 | CEDARFALLS | 9631 | — | Yes |
| 319-226 | WATERLOO | 9631 | — | — |
| 319-232 | WATERLOO | 9631 | — | — |
| 319-233 | WATERLOO | 9631 | — | — |
| 319-234 | WATERLOO | 9631 | — | — |
| 319-235 | WATERLOO | 9631 | — | — |
| 319-236 | WATERLOO | 9631 | — | — |
| 319-243 | CEDARFALLS | 9631 | 2002-04-22 | Yes |
| 319-247 | CEDAR RPDS | 9631 | — | — |
| 319-263 | CEDAR RPDS | 9631 | 2006-06-12 | Yes |
| 319-266 | CEDARFALLS | 9631 | — | — |
| 319-268 | CEDARFALLS | 9631 | — | — |
| 319-272 | WATERLOO | 9631 | — | — |
| 319-273 | CEDARFALLS | 9631 | — | — |
| 319-274 | WATERLOO | 9631 | — | Yes |
| 319-277 | CEDARFALLS | 9631 | — | — |
| 319-283 | OELWEIN | 9631 | — | Yes |
| 319-286 | CEDAR RPDS | 9631 | — | — |
| 319-287 | WATERLOO | 9631 | — | — |
| 319-291 | WATERLOO | 9631 | — | — |
| 319-292 | WATERLOO | 9631 | — | — |
| 319-294 | CEDAR RPDS | 9631 | — | — |
| 319-295 | CEDAR RPDS | 9631 | — | — |
| 319-296 | WATERLOO | 9631 | — | Yes |
| 319-297 | CEDAR RPDS | 9631 | — | — |
| 319-298 | CEDAR RPDS | 9631 | — | — |
| 319-334 | INDEPNDNCE | 9631 | — | Yes |
| 319-335 | IOWA CITY | 9631 | — | — |
| 319-337 | IOWA CITY | 9631 | — | — |
| 319-338 | IOWA CITY | 9631 | — | — |
| 319-339 | IOWA CITY | 9631 | — | — |
| 319-341 | IOWA CITY | 9631 | — | — |
| 319-346 | PARKERSBG | 9631 | — | Yes |
| 319-351 | IOWA CITY | 9631 | — | — |
| 319-352 | WAVERLY | 9631 | — | — |
| 319-353 | IOWA CITY | 9631 | — | — |
| 319-354 | IOWA CITY | 9631 | — | — |
| 319-355 | CEDAR RPDS | 9631 | 2005-03-08 | Yes |
| 319-356 | IOWA CITY | 9631 | — | — |
| 319-358 | IOWA CITY | 9631 | — | — |
| 319-362 | CEDAR RPDS | 9631 | — | — |
| 319-363 | CEDAR RPDS | 9631 | — | — |
| 319-364 | CEDAR RPDS | 9631 | — | — |
| 319-365 | CEDAR RPDS | 9631 | — | — |
| 319-366 | CEDAR RPDS | 9631 | — | Yes |
| 319-368 | CEDAR RPDS | 9631 | — | — |
| 319-369 | CEDAR RPDS | 9631 | — | — |
| 319-372 | FT MADISON | 9631 | — | — |
| 319-373 | CEDAR RPDS | 9631 | — | — |
| 319-375 | CEDAR RPDS | 9631 | — | — |
| 319-376 | FT MADISON | 9631 | — | Yes |
| 319-377 | CEDAR RPDS | 9631 | — | — |
| 319-378 | CEDAR RPDS | 9631 | — | — |
| 319-384 | IOWA CITY | 9631 | — | — |
| 319-390 | CEDAR RPDS | 9631 | — | — |
| 319-393 | CEDAR RPDS | 9631 | — | — |
| 319-395 | CEDAR RPDS | 9631 | — | — |
| 319-396 | CEDAR RPDS | 9631 | — | — |
| 319-398 | CEDAR RPDS | 9631 | — | — |
| 319-399 | CEDAR RPDS | 9631 | — | — |
| 319-435 | COGGON | 9631 | — | Yes |
| 319-447 | CEDAR RPDS | 9631 | — | Yes |
| 319-462 | ANAMOSA | 9631 | — | Yes |
| 319-465 | MONTICELLO | 9631 | — | Yes |
| 319-466 | IOWA CITY | 9631 | — | — |
| 319-467 | IOWA CITY | 9631 | — | — |
| 319-472 | VINTON | 9631 | — | Yes |
| 319-483 | WAVERLY | 9631 | — | Yes |
| 319-524 | KEOKUK | 9631 | — | — |
| 319-526 | KEOKUK | 9631 | — | Yes |
| 319-558 | CEDAR RPDS | 9631 | — | Yes |
| 319-654 | CEDAR RPDS | 9631 | — | Yes |
| 319-678 | IOWA CITY | 9631 | 2012-07-10 | Yes |
| 319-688 | IOWA CITY | 9631 | — | — |
| 319-743 | CEDAR RPDS | 9631 | — | Yes |
| 319-752 | BURLINGTON | 9631 | — | — |
| 319-753 | BURLINGTON | 9631 | — | — |
| 319-754 | BURLINGTON | 9631 | — | — |
| 319-758 | BURLINGTON | 9631 | — | — |
| 319-768 | BURLINGTON | 9631 | — | Yes |
| 319-784 | CEDAR RPDS | 9631 | — | Yes |
| 319-786 | CEDAR RPDS | 9631 | — | — |
| 319-832 | CEDAR RPDS | 9631 | — | — |
| 319-833 | WATERLOO | 9631 | — | — |
| 319-834 | IOWA CITY | 9631 | — | Yes |
| 319-849 | CENTER PT | 9631 | — | Yes |
| 319-859 | CEDARFALLS | 9631 | — | Yes |
| 319-861 | CEDAR RPDS | 9631 | — | — |
| 319-862 | CEDAR RPDS | 9631 | — | — |
| 319-866 | CEDAR RPDS | 9631 | — | — |
| 319-874 | WATERLOO | 9631 | — | — |
| 319-887 | IOWA CITY | 9631 | — | — |
| 319-895 | MT VERNON | 9631 | — | Yes |
| 319-896 | CEDAR RPDS | 9631 | — | — |
| 319-983 | PARKERSBG | 9631 | — | Yes |
| 319-984 | DENVER | 9631 | — | Yes |
| 319-988 | HUDSON | 9631 | — | Yes |
| 319-989 | PARKERSBG | 9631 | — | Yes |
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.