UNITED STATES CELLULAR - NE
15 prefixes in 531 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 531-206 | AINSWORTH | 6263 | 2018-08-24 | Yes |
| 531-271 | O NEILL | 6263 | 2021-08-24 | Yes |
| 531-274 | WAYNE | 6263 | 2021-10-01 | Yes |
| 531-275 | HOWELLS | 6263 | 2021-04-16 | Yes |
| 531-287 | AUBURN | 6263 | 2022-09-08 | Yes |
| 531-293 | SCHUYLER | 6263 | 2022-09-08 | Yes |
| 531-379 | AURORA | 6263 | 2025-03-21 | Yes |
| 531-380 | AURORA | 6263 | 2025-03-21 | Yes |
| 531-381 | AURORA | 6263 | 2025-03-21 | Yes |
| 531-382 | AURORA | 6263 | 2025-03-21 | Yes |
| 531-384 | AURORA | 6263 | 2025-03-21 | Yes |
| 531-385 | AURORA | 6263 | 2025-03-21 | Yes |
| 531-386 | AURORA | 6263 | 2025-03-21 | Yes |
| 531-387 | AURORA | 6263 | 2025-03-21 | Yes |
| 531-388 | AURORA | 6263 | 2025-03-21 | 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.