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 819
New assignments by month
Sep 2026
Aug 2026
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May 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2007-05-08 | 819-604 | not yet reported which blocks → | Videotron Ltd. | 8306 | Victoriaville | — |
| 2007-04-30 | 819-499 | not yet reported which blocks → | Videotron Ltd. | 8306 | Mont-Laurier | — |
| 2007-04-30 | 819-516 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Andre-Avellin | — |
| 2007-04-24 | 819-909 | not yet reported which blocks → | Videotron Ltd. | 8306 | Trois-Rivieres | — |
| 2006-12-28 | 819-907 | not yet reported which blocks → | Videotron Ltd. | 8306 | Lac-Megantic | — |
| 2006-11-10 | 819-408 | not yet reported which blocks → | Videotron Ltd. | 8306 | Waterville | — |
| 2006-11-10 | 819-409 | not yet reported which blocks → | Videotron Ltd. | 8306 | North Hatley | — |
| 2006-11-07 | 819-703 | not yet reported which blocks → | Videotron Ltd. | 8306 | Magog | — |
| 2006-11-07 | 819-804 | not yet reported which blocks → | Videotron Ltd. | 8306 | Coaticook | — |
| 2006-08-30 | 819-276 | not yet reported which blocks → | Videotron Ltd. | 8306 | Bromptonville | — |
| 2006-08-30 | 819-451 | not yet reported which blocks → | Videotron Ltd. | 8306 | East Angus | — |
| 2006-08-30 | 819-543 | not yet reported which blocks → | Videotron Ltd. | 8306 | Stoke | — |
| 2006-08-30 | 819-612 | not yet reported which blocks → | Videotron Ltd. | 8306 | Deauville | — |
| 2006-08-25 | 819-791 | not yet reported which blocks → | Videotron Ltd. | 8306 | Sherbrooke | — |
| 2006-04-07 | 819-893 | not yet reported which blocks → | Videotron Ltd. | 8306 | Gatineau | — |
| 2006-04-04 | 819-205 | not yet reported which blocks → | Videotron Ltd. | 8306 | Ottawa-Hull | — |
| 2006-04-04 | 819-306 | not yet reported which blocks → | Videotron Ltd. | 8306 | Maniwaki | — |
| 2006-04-04 | 819-308 | not yet reported which blocks → | Videotron Ltd. | 8306 | Papineauville | — |
| 2006-04-04 | 819-309 | not yet reported which blocks → | Videotron Ltd. | 8306 | Montebello | — |
| 2006-04-04 | 819-557 | not yet reported which blocks → | Videotron Ltd. | 8306 | Aylmer | — |
| 2006-04-04 | 819-607 | not yet reported which blocks → | Videotron Ltd. | 8306 | Chelsea | — |
| 2006-04-04 | 819-617 | not yet reported which blocks → | Videotron Ltd. | 8306 | Buckingham | — |
| 2006-04-04 | 819-707 | not yet reported which blocks → | Videotron Ltd. | 8306 | Thurso | — |
| 2006-04-04 | 819-903 | not yet reported which blocks → | Videotron Ltd. | 8306 | Perkins | — |
| 2005-06-24 | 819-203 | not yet reported which blocks → | Videotron Ltd. | 8306 | Mont-Laurier | — |
| 2005-06-22 | 819-892 | not yet reported which blocks → | Videotron Ltd. | 8306 | Maniwaki | — |
| 2005-03-24 | 819-675 | not yet reported which blocks → | Videotron Ltd. | 8306 | North Hatley | — |
| 2005-03-24 | 819-677 | not yet reported which blocks → | Videotron Ltd. | 8306 | Waterville | — |
| 2005-03-18 | 819-746 | not yet reported which blocks → | Videotron Ltd. | 8306 | Magog | — |
| 2005-03-18 | 819-926 | not yet reported which blocks → | Videotron Ltd. | 8306 | Coaticook | — |
| 2005-03-09 | 819-240 | not yet reported which blocks → | Videotron Ltd. | 8306 | Deauville | — |
| 2005-03-09 | 819-251 | not yet reported which blocks → | Videotron Ltd. | 8306 | East Angus | — |
| 2005-03-09 | 819-258 | not yet reported which blocks → | Videotron Ltd. | 8306 | Stoke | — |
| 2005-03-09 | 819-541 | not yet reported which blocks → | Videotron Ltd. | 8306 | Bromptonville | — |
| 2005-02-23 | 819-551 | not yet reported which blocks → | Videotron Ltd. | 8306 | Arthabaska | — |
| 2005-02-23 | 819-882 | not yet reported which blocks → | Videotron Ltd. | 8306 | Norbertville | — |
| 2005-02-21 | 819-361 | not yet reported which blocks → | Videotron Ltd. | 8306 | Princeville | — |
| 2005-02-03 | 819-885 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Andre-Avellin | — |
| 2004-12-30 | 819-335 | not yet reported which blocks → | Videotron Ltd. | 8306 | Chelsea | — |
| 2004-12-29 | 819-391 | not yet reported which blocks → | Videotron Ltd. | 8306 | Luskville | — |
| 2004-12-29 | 819-393 | not yet reported which blocks → | Videotron Ltd. | 8306 | Montebello | — |
| 2004-12-29 | 819-476 | not yet reported which blocks → | Videotron Ltd. | 8306 | Papineauville | — |
| 2004-12-29 | 819-659 | not yet reported which blocks → | Videotron Ltd. | 8306 | Thurso | — |
| 2004-12-29 | 819-813 | not yet reported which blocks → | Videotron Ltd. | 8306 | Perkins | — |
| 2004-11-05 | 819-332 | not yet reported which blocks → | Videotron Ltd. | 8306 | Aylmer | — |
| 2003-11-25 | 819-961 | not yet reported which blocks → | Videotron Ltd. | 8306 | Buckingham | — |
| 2002-05-17 | 819-439 | not yet reported which blocks → | Videotron Ltd. | 8306 | Gatineau | — |
| 2001-11-28 | 819-980 | not yet reported which blocks → | Videotron Ltd. | 8306 | Victoriaville | — |
| 2001-08-23 | 819-390 | not yet reported which blocks → | Videotron Ltd. | 8306 | Drummondville | — |
| 2000-11-14 | 819-601 | not yet reported which blocks → | Videotron Ltd. | 8306 | Trois-Rivieres | — |
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.