NUSO, LLC
2 prefixes in 534 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 534-210 | RIVERFALLS | 732J | 2023-02-10 | Yes |
| 534-240 | MENOMONIE | 478J | 2025-04-18 | 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.