All assignees
208 prefixes in 628 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 628-950 | — | — | ||
| 628-958 | — | — | ||
| 628-959 | — | — | ||
| 628-976 | — | — | ||
| 628-977 | SNFC MT-EV | 965H | 2020-07-10 | Yes |
| 628-997 | SNFC CNTRL | 649C | 2024-04-18 | Yes |
| 628-998 | SNFC CNTRL | 700J | 2024-03-06 | Yes |
| 628-999 | SNFC CNTRL | 649C | — | 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.