NUSO, LLC
4 prefixes in 839 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 839-220 | JACKSON | 732J | 2022-09-20 | Yes |
| 839-234 | CAMDEN | 732J | 2023-02-13 | Yes |
| 839-238 | COLUMBIA | 732J | 2023-03-30 | Yes |
| 839-317 | COLUMBIA | 478J | 2025-05-01 | 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.