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
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 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 |
|---|---|---|---|---|---|---|
| 2012-12-20 | 819-624 | not yet reported which blocks → | TELUS Quebec | 2243 | Ottawa-Hull | — |
| 2012-12-14 | 819-654 | not yet reported which blocks → | TELUS Quebec | 2243 | Ottawa-Hull | — |
| 2012-10-24 | 819-204 | not yet reported which blocks → | TELUS Quebec | 2243 | Notre-Dame-du-Bon-Conseil | — |
| 2012-10-19 | 819-262 | not yet reported which blocks → | TELUS Quebec | 2243 | Nicolet | — |
| 2012-08-10 | 819-720 | not yet reported which blocks → | TELUS Quebec | 2243 | Wakefield | — |
| 2012-04-16 | 819-866 | not yet reported which blocks → | TELUS Quebec | 2243 | Chelsea | — |
| 2010-08-27 | 819-883 | not yet reported which blocks → | TELUS Quebec | 2243 | Drummondville | — |
| 2010-08-27 | 819-886 | not yet reported which blocks → | TELUS Quebec | 2243 | Gatineau | — |
| 2010-08-27 | 819-890 | not yet reported which blocks → | TELUS Quebec | 2243 | Lac-Megantic | — |
| 2010-08-27 | 819-891 | not yet reported which blocks → | TELUS Quebec | 2243 | Sherbrooke | — |
| 2010-08-27 | 819-896 | not yet reported which blocks → | TELUS Quebec | 2243 | Ste-Agathe | — |
| 2010-08-27 | 819-897 | not yet reported which blocks → | TELUS Quebec | 2243 | St-Jovite | — |
| 2010-08-27 | 819-898 | not yet reported which blocks → | TELUS Quebec | 2243 | Trois-Rivieres | — |
| 2010-06-11 | 819-857 | not yet reported which blocks → | TELUS Quebec | 2243 | Drummondville | — |
| 2010-05-13 | 819-236 | not yet reported which blocks → | TELUS Quebec | 2243 | Labelle | — |
| 2010-03-19 | 819-869 | not yet reported which blocks → | TELUS Quebec | 2243 | Magog | — |
| 2009-01-13 | 819-867 | not yet reported which blocks → | TELUS Quebec | 2243 | Ayer's Cliff | — |
| 2008-11-13 | 819-794 | not yet reported which blocks → | TELUS Quebec | 2243 | North Hatley | — |
| 2008-07-21 | 819-841 | not yet reported which blocks → | TELUS Quebec | 2243 | Trois-Rivieres | — |
| 2008-05-14 | 819-628 | not yet reported which blocks → | TELUS Quebec | 2243 | Windsor | — |
| 2008-05-14 | 819-636 | not yet reported which blocks → | TELUS Quebec | 2243 | Bromptonville | — |
| 2008-05-14 | 819-642 | not yet reported which blocks → | TELUS Quebec | 2243 | Danville | — |
| 2008-05-14 | 819-644 | not yet reported which blocks → | TELUS Quebec | 2243 | Richmond | — |
| 2008-04-07 | 819-602 | not yet reported which blocks → | TELUS Quebec | 2243 | Becancour | — |
| 2008-04-07 | 819-603 | not yet reported which blocks → | TELUS Quebec | 2243 | Ste-Angele | — |
| 2008-04-07 | 819-606 | not yet reported which blocks → | TELUS Quebec | 2243 | St-Gregoire | — |
| 2008-04-07 | 819-608 | not yet reported which blocks → | TELUS Quebec | 2243 | Gentilly | — |
| 2008-04-07 | 819-615 | not yet reported which blocks → | TELUS Quebec | 2243 | St-Leonard-d'Aston | — |
| 2008-04-07 | 819-618 | not yet reported which blocks → | TELUS Quebec | 2243 | Yamachiche | — |
| 2008-04-07 | 819-619 | not yet reported which blocks → | TELUS Quebec | 2243 | Champlain | — |
| 2008-04-07 | 819-626 | not yet reported which blocks → | TELUS Quebec | 2243 | Maskinonge | — |
| 2008-04-04 | 819-605 | not yet reported which blocks → | TELUS Quebec | 2243 | Daveluyville | — |
| 2008-02-28 | 819-655 | not yet reported which blocks → | TELUS Quebec | 2243 | St-Boniface-de-Shawinigan | — |
| 2008-02-28 | 819-730 | not yet reported which blocks → | TELUS Quebec | 2243 | St-Germain-de-Grantham | — |
| 2008-02-28 | 819-741 | not yet reported which blocks → | TELUS Quebec | 2243 | Wickham | — |
| 2008-02-28 | 819-781 | not yet reported which blocks → | TELUS Quebec | 2243 | St-Cyrille | — |
| 2008-01-28 | 819-714 | not yet reported which blocks → | TELUS Quebec | 2243 | St-Adolphe-D'Howard | — |
| 2008-01-21 | 819-713 | not yet reported which blocks → | TELUS Quebec | 2243 | St-Faustin | — |
| 2008-01-14 | 819-419 | not yet reported which blocks → | TELUS Quebec | 2243 | St-Donat-de-Montcalm | — |
| 2008-01-11 | 819-320 | not yet reported which blocks → | TELUS Quebec | 2243 | Val David | — |
| 2007-02-22 | 819-789 | not yet reported which blocks → | TELUS Quebec | 2243 | Plessisville | — |
| 2006-11-14 | 819-716 | not yet reported which blocks → | TELUS Quebec | 2243 | Asbestos | — |
| 2006-08-09 | 819-718 | not yet reported which blocks → | TELUS Quebec | 2243 | Gatineau | — |
| 2006-07-11 | 819-774 | not yet reported which blocks → | TELUS Quebec | 2243 | Ste-Agathe | — |
| 2006-05-11 | 819-769 | not yet reported which blocks → | TELUS Quebec | 2243 | Magog | — |
| 2006-02-08 | 819-721 | not yet reported which blocks → | TELUS Quebec | 2243 | Louiseville | — |
| 2006-02-08 | 819-729 | not yet reported which blocks → | TELUS Quebec | 2243 | Grand'Mere | — |
| 2006-02-08 | 819-731 | not yet reported which blocks → | TELUS Quebec | 2243 | Shawinigan | — |
| 2005-02-08 | 819-717 | not yet reported which blocks → | TELUS Quebec | 2243 | St-Jovite | — |
| 2003-12-11 | 819-966 | not yet reported which blocks → | TELUS Quebec | 2243 | Ottawa-Hull | — |
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.