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.
Most active assignees, all time — NPA 450
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 |
|---|---|---|---|---|---|---|
| — | 450-471 | not yet reported which blocks → | Bell Canada | 8050 | Terrebonne | — |
| — | 450-472 | not yet reported which blocks → | Bell Canada | 8050 | St-Eustache | — |
| — | 450-473 | not yet reported which blocks → | Bell Canada | 8050 | St-Eustache | — |
| — | 450-474 | not yet reported which blocks → | Bell Canada | 8050 | Mascouche | — |
| — | 450-475 | not yet reported which blocks → | Bell Canada | 8050 | Mirabel-St-Augustin | — |
| — | 450-476 | not yet reported which blocks → | Bell Canada | 8050 | Mirabel-Aeroport | — |
| — | 450-477 | not yet reported which blocks → | Bell Canada | 8050 | Mascouche | — |
| — | 450-478 | not yet reported which blocks → | Bell Canada | 8050 | Ste-Anne-des-Plaines | — |
| — | 450-479 | not yet reported which blocks → | Bell Canada | 8050 | Oka | — |
| — | 450-491 | not yet reported which blocks → | Bell Canada | 8050 | St-Eustache | — |
| — | 450-492 | not yet reported which blocks → | Bell Canada | 8050 | Terrebonne | — |
| — | 450-510 | not yet reported which blocks → | Bell Canada | 8050 | Vaudreuil | — |
| — | 450-533 | not yet reported which blocks → | Bell Canada | 8050 | Brownsburg | — |
| — | 450-534 | not yet reported which blocks → | Bell Canada | 8050 | Bromont | — |
| — | 450-536 | not yet reported which blocks → | Bell Canada | 8050 | Beloeil | — |
| — | 450-537 | not yet reported which blocks → | Bell Canada | 8050 | St-Andre Est | — |
| — | 450-538 | not yet reported which blocks → | Bell Canada | 8050 | Sutton | — |
| — | 450-539 | not yet reported which blocks → | Bell Canada | 8050 | Waterloo | — |
| — | 450-542 | not yet reported which blocks → | Bell Canada | 8050 | St-Jean | — |
| — | 450-544 | not yet reported which blocks → | Bell Canada | 8050 | Valleyfield | — |
| — | 450-545 | not yet reported which blocks → | Bell Canada | 8050 | St-Jean | — |
| — | 450-546 | not yet reported which blocks → | Bell Canada | 8050 | Actonvale | — |
| — | 450-547 | not yet reported which blocks → | Bell Canada | 8050 | Lavaltrie | — |
| — | 450-560 | not yet reported which blocks → | Bell Canada | 8050 | St-Jerome | — |
| — | 450-561 | not yet reported which blocks → | Bell Canada | 8050 | Sorel | — |
| — | 450-562 | not yet reported which blocks → | Bell Canada | 8050 | Lachute | — |
| — | 450-563 | not yet reported which blocks → | Bell Canada | 8050 | St-Hippolyte | — |
| — | 450-564 | not yet reported which blocks → | Bell Canada | 8050 | St-Zephirin | — |
| — | 450-565 | not yet reported which blocks → | Bell Canada | 8050 | St-Jerome | — |
| — | 450-566 | not yet reported which blocks → | Bell Canada | 8050 | Lachute | — |
| — | 450-567 | not yet reported which blocks → | Bell Canada | 8050 | Valleyfield | — |
| — | 450-568 | not yet reported which blocks → | Bell Canada | 8050 | Pierreville | — |
| — | 450-569 | not yet reported which blocks → | Bell Canada | 8050 | St-Jerome | — |
| — | 450-581 | not yet reported which blocks → | Bell Canada | 8050 | Le Gardeur | — |
| — | 450-582 | not yet reported which blocks → | Bell Canada | 8050 | Le Gardeur | — |
| — | 450-583 | not yet reported which blocks → | Bell Canada | 8050 | Vercheres | — |
| — | 450-584 | not yet reported which blocks → | Bell Canada | 8050 | St-Marc | — |
| — | 450-585 | not yet reported which blocks → | Bell Canada | 8050 | Le Gardeur | — |
| — | 450-586 | not yet reported which blocks → | Bell Canada | 8050 | Lavaltrie | — |
| — | 450-588 | not yet reported which blocks → | Bell Canada | 8050 | L'Epiphanie-l'Assomption | — |
| — | 450-589 | not yet reported which blocks → | Bell Canada | 8050 | L'Epiphanie-l'Assomption | — |
| — | 450-602 | not yet reported which blocks → | Bell Canada | 8050 | St-Jerome | — |
| — | 450-618 | not yet reported which blocks → | Bell Canada | 8050 | St-Lambert | — |
| — | 450-619 | not yet reported which blocks → | Bell Canada | 8050 | Laprairie | — |
| — | 450-621 | not yet reported which blocks → | Bell Canada | 8050 | Ste-Therese | — |
| — | 450-622 | not yet reported which blocks → | Bell Canada | 8050 | Ste-Rose | — |
| — | 450-623 | not yet reported which blocks → | Bell Canada | 8050 | St-Eustache | — |
| — | 450-625 | not yet reported which blocks → | Bell Canada | 8050 | Ste-Rose | — |
| — | 450-627 | not yet reported which blocks → | Bell Canada | 8050 | Laval-Ouest | — |
| — | 450-628 | not yet reported which blocks → | Bell Canada | 8050 | Ste-Rose | — |
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.