NUSO, LLC
5 prefixes in 854 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 854-237 | MYRTLE BCH | 732J | 2023-02-13 | Yes |
| 854-238 | MTPLEASANT | 732J | 2023-02-13 | Yes |
| 854-244 | FLORENCE | 732J | 2023-04-25 | Yes |
| 854-253 | CHARLESTON | 732J | 2023-08-30 | Yes |
| 854-293 | CHARLESTON | 478J | 2025-04-22 | 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.