SPOK, INC.
14 prefixes in 630 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 630-223 | LA GRANGE | 6630 | — | — |
| 630-249 | LA GRANGE | 6630 | — | — |
| 630-255 | MAYWOOD | 6630 | — | — |
| 630-266 | LA GRANGE | 6630 | — | — |
| 630-342 | LA GRANGE | 6630 | — | — |
| 630-356 | LA GRANGE | 6630 | — | — |
| 630-367 | LA GRANGE | 6630 | — | — |
| 630-374 | NAPERVILLE | 6630 | — | — |
| 630-419 | LA GRANGE | 6630 | — | — |
| 630-498 | LA GRANGE | 6630 | — | — |
| 630-583 | LA GRANGE | 6630 | — | — |
| 630-683 | MAYWOOD | 6630 | — | — |
| 630-838 | MAYWOOD | 6630 | — | — |
| 630-867 | LA GRANGE | 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.