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
Jul 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 |
|---|---|---|---|---|---|---|
| 2006-06-27 | 450-841 | not yet reported which blocks → | Videotron Ltd. | 8306 | Le Gardeur | — |
| 2006-06-23 | 450-389 | not yet reported which blocks → | Videotron Ltd. | 8306 | Crabtree | — |
| 2006-06-23 | 450-935 | not yet reported which blocks → | Videotron Ltd. | 8306 | Lavaltrie | — |
| 2006-06-08 | 450-325 | not yet reported which blocks → | Videotron Ltd. | 8306 | Mascouche | — |
| 2006-06-08 | 450-326 | not yet reported which blocks → | Videotron Ltd. | 8306 | Terrebonne | — |
| 2006-04-11 | 450-908 | not yet reported which blocks → | Videotron Ltd. | 8306 | Sorel | — |
| 2006-04-11 | 450-909 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Denis | — |
| 2005-12-22 | 450-220 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Alphonse-de-Rodriguez | — |
| 2005-12-22 | 450-221 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Felix-de-Valois | — |
| 2005-12-22 | 450-237 | not yet reported which blocks → | Videotron Ltd. | 8306 | Howick | — |
| 2005-12-21 | 450-219 | not yet reported which blocks → | Videotron Ltd. | 8306 | Valleyfield | — |
| 2005-12-19 | 450-216 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Polycarpe | — |
| 2005-12-19 | 450-218 | not yet reported which blocks → | Videotron Ltd. | 8306 | Vaudreuil | — |
| 2005-12-16 | 450-208 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Clet | — |
| 2005-12-13 | 450-202 | not yet reported which blocks → | Videotron Ltd. | 8306 | Hudson | — |
| 2005-12-13 | 450-206 | not yet reported which blocks → | Videotron Ltd. | 8306 | Rigaud | — |
| 2005-12-13 | 450-217 | not yet reported which blocks → | Videotron Ltd. | 8306 | Coteau-Landing | — |
| 2005-12-12 | 450-200 | not yet reported which blocks → | Videotron Ltd. | 8306 | Les Cedres | — |
| 2005-12-12 | 450-308 | not yet reported which blocks → | Videotron Ltd. | 8306 | Coteau-du-Lac | — |
| 2005-11-17 | 450-201 | not yet reported which blocks → | Videotron Ltd. | 8306 | Chateauguay | — |
| 2005-11-17 | 450-498 | not yet reported which blocks → | Videotron Ltd. | 8306 | Ste-Martine | — |
| 2005-11-17 | 450-992 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Remi | — |
| 2005-11-17 | 450-993 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Constant | — |
| 2005-11-03 | 450-337 | not yet reported which blocks → | Videotron Ltd. | 8306 | Farnham | — |
| 2005-11-03 | 450-395 | not yet reported which blocks → | Videotron Ltd. | 8306 | Beauharnois | — |
| 2005-10-28 | 450-895 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Jean | — |
| 2005-10-28 | 450-930 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Blaise | — |
| 2005-08-15 | 450-849 | not yet reported which blocks → | Videotron Ltd. | 8306 | Vercheres | — |
| 2005-08-11 | 450-708 | not yet reported which blocks → | Videotron Ltd. | 8306 | Marieville | — |
| 2005-08-11 | 450-709 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Marc | — |
| 2005-07-29 | 450-982 | not yet reported which blocks → | Videotron Ltd. | 8306 | Chambly | — |
| 2005-07-29 | 450-986 | not yet reported which blocks → | Videotron Ltd. | 8306 | Ste-Julie-de-Vercheres | — |
| 2005-07-27 | 450-905 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Bruno | — |
| 2005-07-27 | 450-984 | not yet reported which blocks → | Videotron Ltd. | 8306 | Laprairie | — |
| 2005-07-27 | 450-985 | not yet reported which blocks → | Videotron Ltd. | 8306 | Varennes | — |
| 2005-07-26 | 450-904 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Lambert | — |
| 2005-07-22 | 450-281 | not yet reported which blocks → | Videotron Ltd. | 8306 | Beloeil | — |
| 2005-07-20 | 450-748 | not yet reported which blocks → | Videotron Ltd. | 8306 | Longueuil | — |
| 2005-07-20 | 450-857 | not yet reported which blocks → | Videotron Ltd. | 8306 | Boucherville | — |
| 2005-04-22 | 450-207 | not yet reported which blocks → | Videotron Ltd. | 8306 | Lachute | — |
| 2005-04-22 | 450-856 | not yet reported which blocks → | Videotron Ltd. | 8306 | Brownsburg | — |
| 2005-04-05 | 450-995 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Sauveur | — |
| 2005-04-05 | 450-996 | not yet reported which blocks → | Videotron Ltd. | 8306 | Shawbridge | — |
| 2005-03-30 | 450-214 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Calixte-de-Kilkenny | — |
| 2005-03-30 | 450-215 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Lin | — |
| 2005-03-24 | 450-865 | not yet reported which blocks → | Videotron Ltd. | 8306 | Rawdon | — |
| 2005-03-24 | 450-945 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Blaise | — |
| 2005-03-24 | 450-946 | not yet reported which blocks → | Videotron Ltd. | 8306 | Farnham | — |
| 2005-03-11 | 450-607 | not yet reported which blocks → | Videotron Ltd. | 8306 | Crabtree | — |
| 2005-03-11 | 450-608 | not yet reported which blocks → | Videotron Ltd. | 8306 | Lavaltrie | — |
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.