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
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2005-03-11 | 450-952 | not yet reported which blocks → | Videotron Ltd. | 8306 | Ste-Julienne | — |
| 2005-03-11 | 450-953 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Jacques | — |
| 2005-03-09 | 450-594 | not yet reported which blocks → | Videotron Ltd. | 8306 | Mirabel-Ste-Scholastique | — |
| 2005-03-07 | 450-596 | not yet reported which blocks → | Videotron Ltd. | 8306 | Oka | — |
| 2005-03-07 | 450-597 | not yet reported which blocks → | Videotron Ltd. | 8306 | Mirabel-St-Augustin | — |
| 2005-03-07 | 450-814 | not yet reported which blocks → | Videotron Ltd. | 8306 | Dunham | — |
| 2005-03-07 | 450-816 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Cesaire | — |
| 2005-03-07 | 450-817 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Paul-D'Abbotsford | — |
| 2005-03-03 | 450-815 | not yet reported which blocks → | Videotron Ltd. | 8306 | Cowansville | — |
| 2005-02-25 | 450-526 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Polycarpe | — |
| 2005-02-21 | 450-852 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Clet | — |
| 2005-02-15 | 450-603 | not yet reported which blocks → | Videotron Ltd. | 8306 | Howick | — |
| 2005-02-15 | 450-853 | not yet reported which blocks → | Videotron Ltd. | 8306 | Hudson | — |
| 2005-02-15 | 450-854 | not yet reported which blocks → | Videotron Ltd. | 8306 | Valleyfield | — |
| 2005-02-11 | 450-737 | not yet reported which blocks → | Videotron Ltd. | 8306 | Les Cedres | — |
| 2005-02-11 | 450-738 | not yet reported which blocks → | Videotron Ltd. | 8306 | Rigaud | — |
| 2005-02-09 | 450-739 | not yet reported which blocks → | Videotron Ltd. | 8306 | Coteau-Landing | — |
| 2005-02-09 | 450-740 | not yet reported which blocks → | Videotron Ltd. | 8306 | Coteau-du-Lac | — |
| 2005-02-08 | 450-614 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Marc | — |
| 2005-02-08 | 450-725 | not yet reported which blocks → | Videotron Ltd. | 8306 | Marieville | — |
| 2005-02-03 | 450-212 | not yet reported which blocks → | Videotron Ltd. | 8306 | Ste-Martine | — |
| 2005-02-03 | 450-213 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Denis | — |
| 2005-02-03 | 450-571 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Ours | — |
| 2005-02-03 | 450-573 | not yet reported which blocks → | Videotron Ltd. | 8306 | Contrecoeur | — |
| 2005-02-03 | 450-615 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Remi | — |
| 2005-02-03 | 450-989 | not yet reported which blocks → | Videotron Ltd. | 8306 | Ste-Victoire | — |
| 2005-01-21 | 450-717 | not yet reported which blocks → | Videotron Ltd. | 8306 | Vercheres | — |
| 2004-12-02 | 450-551 | not yet reported which blocks → | Videotron Ltd. | 8306 | Sorel | — |
| 2004-11-03 | 450-205 | not yet reported which blocks → | Videotron Ltd. | 8306 | Ste-Anne-des-Plaines | — |
| 2004-11-03 | 450-617 | not yet reported which blocks → | Videotron Ltd. | 8306 | Beauharnois | — |
| 2004-05-06 | 450-735 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Eustache | — |
| 2004-05-06 | 450-736 | not yet reported which blocks → | Videotron Ltd. | 8306 | Ste-Rose | — |
| 2004-04-30 | 450-713 | not yet reported which blocks → | Videotron Ltd. | 8306 | L'Epiphanie-l'Assomption | — |
| 2004-04-30 | 450-722 | not yet reported which blocks → | Videotron Ltd. | 8306 | Mascouche | — |
| 2004-04-30 | 450-728 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Vincent-de-Paul | — |
| 2004-04-30 | 450-729 | not yet reported which blocks → | Videotron Ltd. | 8306 | Terrebonne | — |
| 2004-04-30 | 450-731 | not yet reported which blocks → | Videotron Ltd. | 8306 | Varennes | — |
| 2004-04-30 | 450-733 | not yet reported which blocks → | Videotron Ltd. | 8306 | Ste-Julie-de-Vercheres | — |
| 2004-04-30 | 450-734 | not yet reported which blocks → | Videotron Ltd. | 8306 | Waterloo | — |
| 2004-04-29 | 450-714 | not yet reported which blocks → | Videotron Ltd. | 8306 | Beloeil | — |
| 2004-04-29 | 450-715 | not yet reported which blocks → | Videotron Ltd. | 8306 | Chambly | — |
| 2004-04-29 | 450-720 | not yet reported which blocks → | Videotron Ltd. | 8306 | Laval-Est | — |
| 2004-04-29 | 450-721 | not yet reported which blocks → | Videotron Ltd. | 8306 | Le Gardeur | — |
| 2004-04-29 | 450-723 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Bruno | — |
| 2004-04-22 | 450-716 | not yet reported which blocks → | Videotron Ltd. | 8306 | Chateauguay | — |
| 2004-04-22 | 450-718 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Constant | — |
| 2004-04-20 | 450-719 | not yet reported which blocks → | Videotron Ltd. | 8306 | Laval-Ouest | — |
| 2004-04-20 | 450-724 | not yet reported which blocks → | Videotron Ltd. | 8306 | Laprairie | — |
| 2004-04-20 | 450-732 | not yet reported which blocks → | Videotron Ltd. | 8306 | Vaudreuil | — |
| 2003-06-16 | 450-484 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Hyacinthe | — |
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.