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
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2013-03-28 | 819-925 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Lebel-sur-Quevillon | — |
| 2013-03-28 | 819-940 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | La Sarre | — |
| 2013-03-28 | 819-945 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Cadillac | — |
| 2013-03-28 | 819-946 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Ville-Marie | — |
| 2013-03-28 | 819-952 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Senneterre | — |
| 2013-03-28 | 819-954 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Amos | — |
| 2013-03-07 | 819-831 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Val-D'Or | — |
| 2013-03-05 | 819-431 | not yet reported which blocks → | Bell Mobility | 6574 | Ottawa-Hull | — |
| 2013-02-20 | 819-670 | not yet reported which blocks → | Bell Mobility | 6574 | Fabre | — |
| 2013-02-20 | 819-750 | not yet reported which blocks → | Bell Mobility | 6574 | Latulipe | — |
| 2013-02-04 | 819-833 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Mont-Laurier | — |
| 2012-12-28 | 819-742 | not yet reported which blocks → | Distributel | 083E | Sherbrooke | — |
| 2012-12-20 | 819-559 | not yet reported which blocks → | Videotron Ltd. | 8306 | Warwick | — |
| 2012-12-20 | 819-624 | not yet reported which blocks → | TELUS Quebec | 2243 | Ottawa-Hull | — |
| 2012-12-20 | 819-645 | not yet reported which blocks → | Videotron Ltd. | 8306 | Kingsey-Falls | — |
| 2012-12-14 | 819-654 | not yet reported which blocks → | TELUS Quebec | 2243 | Ottawa-Hull | — |
| 2012-12-07 | 819-630 | not yet reported which blocks → | Videotron Ltd. | 8306 | Saint-Albert | — |
| 2012-12-07 | 819-641 | not yet reported which blocks → | Videotron Ltd. | 8306 | Warwick | — |
| 2012-11-30 | 819-938 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | 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 | — |
| 2012-10-04 | 819-904 | not yet reported which blocks → | Videotron Ltd. | 787G | Ottawa-Hull | — |
| 2012-08-17 | 819-830 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Amos | — |
| 2012-08-17 | 819-859 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Val-D'Or | — |
| 2012-08-17 | 819-880 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Rouyn-Noranda | — |
| 2012-08-10 | 819-720 | not yet reported which blocks → | TELUS Quebec | 2243 | Wakefield | — |
| 2012-07-10 | 819-489 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Trois-Rivieres | — |
| 2012-06-01 | 819-201 | not yet reported which blocks → | Iristel Inc. | 154E | Magog | — |
| 2012-05-02 | 819-510 | not yet reported which blocks → | Iristel Inc. | 154E | Ottawa-Hull | — |
| 2012-04-16 | 819-866 | not yet reported which blocks → | TELUS Quebec | 2243 | Chelsea | — |
| 2012-03-22 | 819-414 | not yet reported which blocks → | Iristel Inc. | 154E | Ottawa-Hull | — |
| 2012-03-09 | 819-282 | not yet reported which blocks → | Fibernetics Corporation | 464D | Ottawa-Hull | — |
| 2012-03-01 | 819-307 | not yet reported which blocks → | Iristel Inc. | 154E | Gatineau | — |
| 2011-11-01 | 819-550 | not yet reported which blocks → | TELUS Mobility | 8303 | Val-D'Or | — |
| 2011-11-01 | 819-995 | not yet reported which blocks → | TELUS Mobility | 8303 | Trois-Rivieres | — |
| 2011-09-20 | 819-412 | not yet reported which blocks → | Iristel Inc. | 154E | Ottawa-Hull | — |
| 2011-09-07 | 819-807 | not yet reported which blocks → | Iristel Inc. | 154E | Trois-Rivieres | — |
| 2011-08-31 | 819-939 | not yet reported which blocks → | Bell Canada | 8050 | Ottawa-Hull | — |
| 2011-08-30 | 819-914 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Ottawa-Hull | — |
| 2011-08-30 | 819-915 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Aylmer | — |
| 2011-08-30 | 819-916 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Gatineau | — |
| 2011-08-19 | 819-410 | not yet reported which blocks → | Iristel Inc. | 154E | Ottawa-Hull | — |
| 2011-08-09 | 819-200 | not yet reported which blocks → | Iristel Inc. | 154E | Sherbrooke | — |
| 2011-07-28 | 819-223 | not yet reported which blocks → | Videotron Ltd. | 8306 | Asbestos | — |
| 2011-07-25 | 819-817 | not yet reported which blocks → | TELUS Mobility | 8303 | Drummondville | — |
| 2011-06-30 | 819-500 | not yet reported which blocks → | Videotron Ltd. | 328F | Gatineau | — |
| 2011-06-29 | 819-992 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Trois-Rivieres | — |
| 2011-06-21 | 819-991 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Drummondville | — |
| 2011-06-15 | 819-881 | not yet reported which blocks → | Distributel | 083E | Ottawa-Hull | — |
| 2011-05-17 | 819-649 | not yet reported which blocks → | Bell Mobility | 6574 | Rouyn-Noranda | — |
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.