NumberResearchRecent prefix assignments
1 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, last 30 days — NPA 579
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
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 |
|---|---|---|---|---|---|---|
| 2015-04-30 | 579-631 | not yet reported which blocks → | Videotron Ltd. | 8306 | Pont-Viau | — |
| 2015-03-23 | 579-740 | not yet reported which blocks → | Comwave Networks | 160G | Joliette | — |
| 2015-03-06 | 579-684 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Granby | — |
| 2014-12-23 | 579-337 | not yet reported which blocks → | Bell Mobility | 6574 | Joliette | — |
| 2014-12-19 | 579-252 | not yet reported which blocks → | TELUS Quebec | 2243 | Chomedey | — |
| 2014-12-19 | 579-253 | not yet reported which blocks → | TELUS Quebec | 2243 | Ste-Julie-de-Vercheres | — |
| 2014-12-05 | 579-440 | not yet reported which blocks → | Videotron Ltd. | 8306 | Frelighsburg | — |
| 2014-12-05 | 579-509 | not yet reported which blocks → | Iristel Inc. | 154E | St-Hyacinthe | — |
| 2014-12-05 | 579-809 | not yet reported which blocks → | Iristel Inc. | 154E | St-Bruno | — |
| 2014-12-03 | 579-595 | not yet reported which blocks → | TELUS Mobility | 8303 | Granby | — |
| 2014-11-07 | 579-357 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Gabriel-de-Brandon | — |
| 2014-11-07 | 579-358 | not yet reported which blocks → | Videotron Ltd. | 8306 | Berthierville | — |
| 2014-09-24 | 579-530 | not yet reported which blocks → | Videotron Ltd. | 8306 | Franklin Centre | — |
| 2014-09-24 | 579-722 | not yet reported which blocks → | Videotron Ltd. | 8306 | Henryville | — |
| 2014-09-12 | 579-934 | not yet reported which blocks → | Videotron Ltd. | 8306 | Chomedey | — |
| 2014-07-16 | 579-214 | not yet reported which blocks → | TELUS Quebec | 2243 | Longueuil | — |
| 2014-07-16 | 579-215 | not yet reported which blocks → | TELUS Quebec | 2243 | Boucherville | — |
| 2014-06-05 | 579-860 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Chateauguay | — |
| 2014-06-05 | 579-862 | not yet reported which blocks → | Fido Solutions Inc. | 8820 | St-Eustache | — |
| 2014-06-05 | 579-863 | not yet reported which blocks → | Fido Solutions Inc. | 8820 | Terrebonne | — |
| 2014-06-05 | 579-864 | not yet reported which blocks → | Fido Solutions Inc. | 8820 | Rawdon | — |
| 2014-06-05 | 579-865 | not yet reported which blocks → | Fido Solutions Inc. | 8820 | Lanoraie | — |
| 2014-05-12 | 579-267 | not yet reported which blocks → | Comwave Networks | 160G | St-Jean | — |
| 2014-05-12 | 579-268 | not yet reported which blocks → | Comwave Networks | 160G | St-Hyacinthe | — |
| 2014-05-08 | 579-434 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Remi | — |
| 2014-05-08 | 579-435 | not yet reported which blocks → | Videotron Ltd. | 8306 | St-Constant | — |
| 2014-04-07 | 579-277 | not yet reported which blocks → | Comwave Networks | 160G | Ste-Therese | — |
| 2014-04-07 | 579-278 | not yet reported which blocks → | Comwave Networks | 160G | St-Jerome | — |
| 2014-03-07 | 579-216 | not yet reported which blocks → | TELUS Quebec | 2243 | Cowansville | — |
| 2014-03-03 | 579-400 | not yet reported which blocks → | Iristel Inc. | 154E | Marieville | — |
| 2014-03-03 | 579-900 | not yet reported which blocks → | Iristel Inc. | 154E | Boucherville | — |
| 2013-11-06 | 579-808 | not yet reported which blocks → | Comwave Networks | 160G | Terrebonne | — |
| 2013-11-06 | 579-818 | not yet reported which blocks → | Comwave Networks | 160G | St-Eustache | — |
| 2013-11-06 | 579-828 | not yet reported which blocks → | Comwave Networks | 160G | Oka | — |
| 2013-11-06 | 579-838 | not yet reported which blocks → | Comwave Networks | 160G | Mirabel-Ste-Scholastique | — |
| 2013-11-06 | 579-858 | not yet reported which blocks → | Comwave Networks | 160G | Mirabel-St-Augustin | — |
| 2013-11-01 | 579-436 | not yet reported which blocks → | Videotron Ltd. | 8306 | Sutton | — |
| 2013-11-01 | 579-437 | not yet reported which blocks → | Cooptel | 818D | Eastman | — |
| 2013-11-01 | 579-438 | not yet reported which blocks → | Videotron Ltd. | 8306 | Knowlton | — |
| 2013-11-01 | 579-439 | not yet reported which blocks → | Cooptel | 818D | Waterloo | — |
| 2013-10-18 | 579-700 | not yet reported which blocks → | Iristel Inc. | 154E | St-Jean | — |
| 2013-10-17 | 579-300 | not yet reported which blocks → | Iristel Inc. | 154E | Pont-Viau | — |
| 2013-10-11 | 579-600 | not yet reported which blocks → | Iristel Inc. | 154E | Beloeil | — |
| 2013-10-11 | 579-977 | not yet reported which blocks → | Iristel Inc. | 154E | Chateauguay | — |
| 2013-10-03 | 579-630 | not yet reported which blocks → | Videotron Ltd. | 8306 | Ste-Therese | — |
| 2013-09-25 | 579-217 | not yet reported which blocks → | TELUS Quebec | 2243 | Vaudreuil | — |
| 2013-09-03 | 579-251 | not yet reported which blocks → | TELUS Quebec | 2243 | St-Eustache | — |
| 2013-08-21 | 579-258 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Rawdon | — |
| 2013-08-21 | 579-259 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Le Gardeur | — |
| 2013-08-21 | 579-260 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | 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.