MULTIPLE OCN LISTING
14 prefixes in 457 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 457-211 | XXXXXXXXXX | MULT | — | — |
| 457-311 | XXXXXXXXXX | MULT | — | — |
| 457-411 | XXXXXXXXXX | MULT | — | — |
| 457-511 | XXXXXXXXXX | MULT | — | — |
| 457-555 | DIR ASST | MULT | — | — |
| 457-611 | XXXXXXXXXX | MULT | — | — |
| 457-700 | XXXXXXXXXX | MULT | — | — |
| 457-711 | XXXXXXXXXX | MULT | — | — |
| 457-811 | XXXXXXXXXX | MULT | — | — |
| 457-911 | XXXXXXXXXX | MULT | — | — |
| 457-950 | XXXXXXXXXX | MULT | — | — |
| 457-958 | XXXXXXXXXX | MULT | — | — |
| 457-959 | XXXXXXXXXX | MULT | — | — |
| 457-976 | XXXXXXXXXX | MULT | — | — |
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.