ONVOY, LLC - WI
10 prefixes in 353 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 353-200 | MADISON | 225C | 2025-10-03 | Yes |
| 353-222 | LONE ROCK | 225C | 2025-08-29 | Yes |
| 353-333 | MONTELLO | 225C | 2025-08-29 | Yes |
| 353-353 | BELLEVILLE | 225C | 2025-12-26 | Yes |
| 353-444 | BLOOM CITY | 225C | 2025-08-29 | Yes |
| 353-529 | DE FOREST | 225C | 2025-12-26 | Yes |
| 353-666 | CENTERVL | 225C | 2025-08-29 | Yes |
| 353-777 | MAZOMANIE | 225C | 2025-08-29 | Yes |
| 353-888 | ALBANY | 225C | 2025-08-29 | Yes |
| 353-999 | ITHACA | 225C | 2025-08-21 | 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.