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 |
|---|---|---|---|---|---|---|
| 2011-09-13 | 450-426 | not yet reported which blocks → | Telecommunications Xittel Inc | 247F | St-Simon | — |
| 2011-09-13 | 450-440 | not yet reported which blocks → | Telecommunications Xittel Inc | 247F | St-Thomas-d'Aquin | — |
| 2011-09-13 | 450-480 | not yet reported which blocks → | Telecommunications Xittel Inc | 247F | Ste-Helene-de-Bagot | — |
| 2011-09-13 | 450-496 | not yet reported which blocks → | Telecommunications Xittel Inc | 247F | Ste-Madeleine | — |
| 2011-09-12 | 450-406 | not yet reported which blocks → | Telecommunications Xittel Inc | 247F | Actonvale | — |
| 2011-07-25 | 450-421 | not yet reported which blocks → | TELUS Mobility | 8303 | Joliette | — |
| 2011-06-07 | 450-453 | not yet reported which blocks → | Distributel | 083E | Pont-Viau | — |
| 2011-05-26 | 450-554 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Farnham | — |
| 2011-05-26 | 450-570 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Napierville | — |
| 2011-05-26 | 450-590 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Bedford | — |
| 2011-05-26 | 450-604 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Lacolle | — |
| 2011-05-18 | 450-529 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | St-Jean | — |
| 2011-05-10 | 450-943 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Sorel | — |
| 2011-04-18 | 450-519 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Ste-Martine | — |
| 2011-04-18 | 450-520 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | St-Chrysostome | — |
| 2011-03-15 | 450-391 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Ste-Marthe | — |
| 2011-02-24 | 450-404 | not yet reported which blocks → | Telecommunications Xittel Inc | 247F | Joliette | — |
| 2010-11-05 | 450-507 | not yet reported which blocks → | Videotron Ltd. | 8306 | Chateauguay | — |
| 2010-11-05 | 450-509 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Constant | — |
| 2010-11-01 | 450-859 | not yet reported which blocks → | Distributel | 083E | Valleyfield | — |
| 2010-11-01 | 450-897 | not yet reported which blocks → | Distributel | 083E | Vaudreuil | — |
| 2010-11-01 | 450-903 | not yet reported which blocks → | Distributel | 083E | Pont-Viau | — |
| 2010-11-01 | 450-910 | not yet reported which blocks → | Distributel | 083E | Chomedey | — |
| 2010-10-01 | 450-386 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Joliette | — |
| 2010-09-20 | 450-394 | not yet reported which blocks → | Videotron Ltd. | 8306 | Joliette | — |
| 2010-09-10 | 450-390 | not yet reported which blocks → | Iristel Inc. | 154E | St-Jean | — |
| 2010-09-10 | 450-914 | not yet reported which blocks → | Iristel Inc. | 154E | Terrebonne | — |
| 2010-09-10 | 450-915 | not yet reported which blocks → | Iristel Inc. | 154E | Granby | — |
| 2010-09-10 | 450-924 | not yet reported which blocks → | Iristel Inc. | 154E | St-Hyacinthe | — |
| 2010-09-10 | 450-954 | not yet reported which blocks → | Iristel Inc. | 154E | Sorel | — |
| 2010-09-10 | 450-977 | not yet reported which blocks → | Iristel Inc. | 154E | Chateauguay | — |
| 2010-09-10 | 450-987 | not yet reported which blocks → | Iristel Inc. | 154E | Ste-Therese | — |
| 2010-09-10 | 450-990 | not yet reported which blocks → | Iristel Inc. | 154E | St-Jerome | — |
| 2010-08-26 | 450-983 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Eustache | — |
| 2010-07-22 | 450-376 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Jean | — |
| 2010-07-20 | 450-556 | not yet reported which blocks → | Videotron Ltd. | 8306 | Sorel | — |
| 2010-07-20 | 450-994 | not yet reported which blocks → | Videotron Ltd. | 8306 | Granby | — |
| 2010-07-15 | 450-824 | not yet reported which blocks → | Videotron Ltd. | 8306 | Terrebonne | — |
| 2010-07-15 | 450-864 | not yet reported which blocks → | Distributel | 083E | Beloeil | — |
| 2010-07-15 | 450-868 | not yet reported which blocks → | Distributel | 083E | Boucherville | — |
| 2010-07-15 | 450-874 | not yet reported which blocks → | Distributel | 083E | Laprairie | — |
| 2010-07-15 | 450-918 | not yet reported which blocks → | Videotron Ltd. | 8306 | Mascouche | — |
| 2010-06-16 | 450-704 | not yet reported which blocks → | Videotron Ltd. | 8306 | Le Gardeur | — |
| 2010-06-16 | 450-705 | not yet reported which blocks → | Videotron Ltd. | 8306 | L'Epiphanie-l'Assomption | — |
| 2010-06-04 | 450-365 | not yet reported which blocks → | TELUS Mobility | 8303 | Joliette | — |
| 2010-05-12 | 450-504 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Jerome | — |
| 2010-03-19 | 450-941 | not yet reported which blocks → | Videotron Ltd. | 8306 | Ste-Anne-des-Plaines | — |
| 2010-03-19 | 450-951 | not yet reported which blocks → | Videotron Ltd. | 8306 | Ste-Therese | — |
| 2010-03-18 | 450-576 | not yet reported which blocks → | TELUS Quebec | 2243 | Lavaltrie | — |
| 2010-03-18 | 450-685 | not yet reported which blocks → | Videotron Ltd. | 8306 | Ste-Julie-de-Vercheres | — |
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.