PIONEER TEL. ASSN., INC.
20 prefixes in 620 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 620-353 | ULYSSES | 1817 | — | — |
| 620-355 | LAKIN | 1817 | — | Yes |
| 620-356 | ULYSSES | 1817 | — | — |
| 620-372 | COOLIDGE | 1817 | — | — |
| 620-373 | KENDALL | 1817 | — | — |
| 620-384 | SYRACUSE | 1817 | — | Yes |
| 620-424 | ULYSSES | 1817 | — | — |
| 620-426 | DEERFIELD | 1817 | — | Yes |
| 620-428 | HUGOTON | 1817 | — | Yes |
| 620-492 | JOHNSON | 1817 | — | Yes |
| 620-493 | MANTER | 1817 | — | — |
| 620-495 | BIG BOW | 1817 | — | — |
| 620-499 | SYRACUSE | 1817 | — | — |
| 620-544 | HUGOTON | 1817 | — | — |
| 620-575 | ULYSSES | 1817 | — | Yes |
| 620-592 | RICHFIELD | 1817 | — | — |
| 620-593 | ROLLA | 1817 | — | Yes |
| 620-598 | MOSCOW | 1817 | — | — |
| 620-649 | SATANTA | 1817 | — | Yes |
| 620-657 | RYUS | 1817 | — | — |
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.