NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026
The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 914-264 | not yet reported which blocks → | SPOK, INC. | 6630 | SPRING VLY | NY |
| — | 914-284 | not yet reported which blocks → | SPOK, INC. | 6630 | WSCHSTZN08 | NY |
| — | 914-321 | not yet reported which blocks → | SPOK, INC. | 6630 | WSCHSTZN08 | NY |
| — | 914-379 | not yet reported which blocks → | SPOK, INC. | 6630 | WSCHSTZN01 | NY |
| — | 914-442 | not yet reported which blocks → | SPOK, INC. | 6630 | WSCHSTZN08 | NY |
| — | 914-445 | not yet reported which blocks → | SPOK, INC. | 6630 | WSCHSTZN08 | NY |
| — | 914-492 | not yet reported which blocks → | SPOK, INC. | 6630 | WSCHSTZN08 | NY |
| — | 914-544 | not yet reported which blocks → | SPOK, INC. | 6630 | WSCHSTZN08 | NY |
| — | 914-551 | not yet reported which blocks → | SPOK, INC. | 6630 | WSCHSTZN08 | NY |
| — | 914-553 | not yet reported which blocks → | SPOK, INC. | 6630 | WSCHSTZN08 | NY |
| — | 914-585 | not yet reported which blocks → | SPOK, INC. | 6630 | MT VERNON | NY |
| — | 914-842 | not yet reported which blocks → | SPOK, INC. | 6630 | PEEKSKILL | NY |
| — | 914-951 | not yet reported which blocks → | SPOK, INC. | 6630 | WSCHSTZN08 | NY |
| — | 914-952 | not yet reported which blocks → | SPOK, INC. | 6630 | WSCHSTZN08 | NY |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.