SPOK, INC.
16 prefixes in 817 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 817-216 | ARLINGTON | 6630 | — | — |
| 817-218 | ARLINGTON | 6630 | — | — |
| 817-327 | ARLINGTON | 6630 | — | — |
| 817-340 | ARLINGTON | 6630 | — | — |
| 817-351 | ARLINGTON | 6630 | — | — |
| 817-414 | GRAPEVINE | 6630 | — | — |
| 817-499 | ARLINGTON | 6630 | — | — |
| 817-604 | GRAPEVINE | 6630 | — | — |
| 817-621 | ARLINGTON | 6630 | — | — |
| 817-651 | ARLINGTON | 6630 | — | — |
| 817-671 | ARLINGTON | 6630 | — | — |
| 817-824 | ARLINGTON | 6630 | — | — |
| 817-827 | ARLINGTON | 6630 | — | — |
| 817-942 | ARLINGTON | 6630 | — | — |
| 817-957 | ARLINGTON | 6630 | — | — |
| 817-979 | ARLINGTON | 6630 | — | — |
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.