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
Aug 2026
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May 2026
Apr 2026
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Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2008-09-15 | 450-809 | not yet reported which blocks → | Iristel Inc. | 154E | Varennes | — |
| 2008-09-15 | 450-823 | not yet reported which blocks → | Iristel Inc. | 154E | Vercheres | — |
| 2008-09-15 | 450-900 | not yet reported which blocks → | Iristel Inc. | 154E | Marieville | — |
| 2008-09-11 | 450-300 | not yet reported which blocks → | Iristel Inc. | 154E | Boucherville | — |
| 2008-09-11 | 450-400 | not yet reported which blocks → | Iristel Inc. | 154E | St-Bruno | — |
| 2008-09-11 | 450-500 | not yet reported which blocks → | Iristel Inc. | 154E | St-Lambert | — |
| 2008-06-26 | 450-855 | not yet reported which blocks → | Videotron Ltd. | 8306 | Sorel | — |
| 2008-06-06 | 450-741 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Jean | — |
| 2008-05-29 | 450-899 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Sorel | — |
| 2008-05-22 | 450-598 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Eustache | — |
| 2008-05-14 | 450-416 | not yet reported which blocks → | Videotron Ltd. | 8306 | Terrebonne | — |
| 2008-05-14 | 450-417 | not yet reported which blocks → | Videotron Ltd. | 8306 | Mascouche | — |
| 2008-05-07 | 450-949 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Ste-Therese | — |
| 2008-04-18 | 450-927 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | St-Sauveur | — |
| 2008-04-04 | 450-867 | not yet reported which blocks → | Videotron Ltd. | 8306 | Joliette | — |
| 2008-03-20 | 450-844 | not yet reported which blocks → | Videotron Ltd. | 8306 | Chateauguay | — |
| 2008-03-20 | 450-845 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Constant | — |
| 2008-03-12 | 450-932 | not yet reported which blocks → | Videotron Ltd. | 8306 | Le Gardeur | — |
| 2008-03-12 | 450-938 | not yet reported which blocks → | Videotron Ltd. | 8306 | L'Epiphanie-l'Assomption | — |
| 2008-02-29 | 450-643 | not yet reported which blocks → | TELUS Quebec | 2243 | Shawbridge | — |
| 2008-02-29 | 450-644 | not yet reported which blocks → | TELUS Quebec | 2243 | Morin Heights | — |
| 2008-02-29 | 450-991 | not yet reported which blocks → | Videotron Ltd. | 8306 | Granby | — |
| 2008-02-26 | 450-488 | not yet reported which blocks → | TELUS Quebec | 2243 | St-Thomas-d'Aquin | — |
| 2008-02-21 | 450-344 | not yet reported which blocks → | TELUS Quebec | 2243 | St-Damase | — |
| 2008-02-21 | 450-388 | not yet reported which blocks → | TELUS Quebec | 2243 | St-Pie | — |
| 2008-02-21 | 450-592 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Jerome | — |
| 2008-02-20 | 450-707 | not yet reported which blocks → | Videotron Ltd. | 8306 | Ste-Anne-des-Plaines | — |
| 2008-02-20 | 450-818 | not yet reported which blocks → | Videotron Ltd. | 8306 | Ste-Therese | — |
| 2008-02-12 | 450-338 | not yet reported which blocks → | Videotron Ltd. | 8306 | Ste-Julie-de-Vercheres | — |
| 2008-02-12 | 450-403 | not yet reported which blocks → | Videotron Ltd. | 8306 | Chambly | — |
| 2008-02-12 | 450-482 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Bruno | — |
| 2008-02-12 | 450-813 | not yet reported which blocks → | Videotron Ltd. | 8306 | Beloeil | — |
| 2008-02-12 | 450-906 | not yet reported which blocks → | Videotron Ltd. | 8306 | Boucherville | — |
| 2008-02-06 | 450-332 | not yet reported which blocks → | Videotron Ltd. | 8306 | Longueuil | — |
| 2008-02-06 | 450-812 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Lambert | — |
| 2008-02-06 | 450-907 | not yet reported which blocks → | Videotron Ltd. | 8306 | Laprairie | — |
| 2008-02-05 | 450-355 | not yet reported which blocks → | TELUS Quebec | 2243 | Ste-Madeleine | — |
| 2008-02-05 | 450-366 | not yet reported which blocks → | TELUS Quebec | 2243 | Actonvale | — |
| 2007-10-23 | 450-999 | not yet reported which blocks → | Iristel Inc. | 154E | Longueuil | — |
| 2007-10-11 | 450-749 | not yet reported which blocks → | TELUS Quebec | 2243 | L'Epiphanie-l'Assomption | — |
| 2007-09-12 | 450-493 | not yet reported which blocks → | Bell Mobility | 6574 | Ste-Madeleine | — |
| 2007-09-06 | 450-483 | not yet reported which blocks → | Videotron Ltd. | 8306 | Yamaska | — |
| 2007-08-14 | 450-334 | not yet reported which blocks → | Videotron Ltd. | 8306 | Notre-Dame-de-Stanbridge | — |
| 2007-06-11 | 450-599 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Pie | — |
| 2007-06-11 | 450-998 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Hyacinthe | — |
| 2007-05-25 | 450-327 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | St-Jerome | — |
| 2007-04-03 | 450-528 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Andre Est | — |
| 2007-03-22 | 450-335 | not yet reported which blocks → | Videotron Ltd. | 8306 | Shawbridge | — |
| 2007-03-22 | 450-336 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Sauveur | — |
| 2007-03-22 | 450-407 | not yet reported which blocks → | Videotron Ltd. | 8306 | Brownsburg | — |
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.