NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
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.
Most active assignees, all time — NPA 604
New assignments by month
Sep 2026
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 604-309 | not yet reported which blocks → | TELUS Mobility | 8301 | Aldergrove | — |
| — | 604-310 | not yet reported which blocks → | TELUS | 8086 | 7 Digit Service | — |
| — | 604-312 | not yet reported which blocks → | TELUS Mobility | 8301 | Vancouver | — |
| — | 604-313 | not yet reported which blocks → | TELUS Mobility | 8301 | Vancouver | — |
| — | 604-314 | not yet reported which blocks → | TELUS Mobility | 8301 | Vancouver | — |
| — | 604-316 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Chilliwack | — |
| — | 604-318 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Vancouver | — |
| — | 604-320 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-321 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-322 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-323 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-324 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-325 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-326 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-327 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-328 | not yet reported which blocks → | TELUS Mobility | 8301 | Vancouver | — |
| — | 604-329 | not yet reported which blocks → | TELUS Mobility | 8301 | Vancouver | — |
| — | 604-331 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-333 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-341 | not yet reported which blocks → | TELUS Mobility | 8301 | Vancouver | — |
| — | 604-351 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | New Westminster | — |
| — | 604-377 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | New Westminster | — |
| — | 604-407 | not yet reported which blocks → | TELUS | 8086 | Chilliwack | — |
| — | 604-408 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-412 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-414 | not yet reported which blocks → | TELUS | 8086 | Powell River | — |
| — | 604-415 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-418 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Vancouver | — |
| — | 604-419 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-420 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-421 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-422 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-430 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-431 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-432 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-433 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-434 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-435 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-436 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-437 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-438 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-439 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-443 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-444 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-448 | not yet reported which blocks → | TELUS | 8086 | Richmond | — |
| — | 604-450 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-451 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-452 | not yet reported which blocks → | TELUS | 8086 | D'Arcy | — |
| — | 604-453 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
| — | 604-454 | not yet reported which blocks → | TELUS | 8086 | Vancouver | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.