MULTIPLE OCN LISTING
14 prefixes in 621 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 621-211 | XXXXXXXXXX | MULT | — | — |
| 621-311 | XXXXXXXXXX | MULT | — | — |
| 621-411 | XXXXXXXXXX | MULT | — | — |
| 621-511 | XXXXXXXXXX | MULT | — | — |
| 621-555 | DIR ASST | MULT | — | — |
| 621-611 | XXXXXXXXXX | MULT | — | — |
| 621-700 | XXXXXXXXXX | MULT | — | — |
| 621-711 | XXXXXXXXXX | MULT | — | — |
| 621-811 | XXXXXXXXXX | MULT | — | — |
| 621-911 | XXXXXXXXXX | MULT | — | — |
| 621-950 | XXXXXXXXXX | MULT | — | — |
| 621-958 | XXXXXXXXXX | MULT | — | — |
| 621-959 | XXXXXXXXXX | MULT | — | — |
| 621-976 | 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.