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 343
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 |
|---|---|---|---|---|---|---|
| 2015-08-06 | 343-439 | not yet reported which blocks → | InnSysVoice Corp | 383H | Lancaster | — |
| 2015-08-06 | 343-440 | not yet reported which blocks → | InnSysVoice Corp | 383H | Long Sault | — |
| 2015-08-06 | 343-441 | not yet reported which blocks → | InnSysVoice Corp | 383H | Martintown | — |
| 2015-08-06 | 343-442 | not yet reported which blocks → | InnSysVoice Corp | 383H | Maxville | — |
| 2015-08-06 | 343-443 | not yet reported which blocks → | InnSysVoice Corp | 383H | Morrisburg | — |
| 2015-08-06 | 343-444 | not yet reported which blocks → | InnSysVoice Corp | 383H | Cornwall | — |
| 2015-08-06 | 343-445 | not yet reported which blocks → | InnSysVoice Corp | 383H | St. Eugene | — |
| 2015-08-06 | 343-446 | not yet reported which blocks → | InnSysVoice Corp | 383H | St. Isidore | — |
| 2015-08-06 | 343-447 | not yet reported which blocks → | InnSysVoice Corp | 383H | St-Regis | — |
| 2015-08-06 | 343-448 | not yet reported which blocks → | InnSysVoice Corp | 383H | Vankleek Hill | — |
| 2015-08-06 | 343-449 | not yet reported which blocks → | InnSysVoice Corp | 383H | Williamsburg | — |
| 2015-08-05 | 343-432 | not yet reported which blocks → | InnSysVoice Corp | 383H | Alexandria | — |
| 2015-08-05 | 343-433 | not yet reported which blocks → | InnSysVoice Corp | 383H | Avonmore | — |
| 2015-08-05 | 343-434 | not yet reported which blocks → | InnSysVoice Corp | 383H | Finch | — |
| 2015-08-05 | 343-435 | not yet reported which blocks → | InnSysVoice Corp | 383H | Glen Robertson | — |
| 2015-08-05 | 343-436 | not yet reported which blocks → | InnSysVoice Corp | 383H | Ingleside | — |
| 2015-08-05 | 343-437 | not yet reported which blocks → | InnSysVoice Corp | 383H | Iroquois | — |
| 2015-08-05 | 343-438 | not yet reported which blocks → | InnSysVoice Corp | 383H | L'Orignal | — |
| 2015-07-20 | 343-214 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Manotick | — |
| 2015-07-13 | 343-422 | not yet reported which blocks → | Bell Mobility | 6574 | Kingston | — |
| 2015-06-19 | 343-431 | not yet reported which blocks → | Bragg Communications Inc. | 4878 | Cornwall | — |
| 2015-05-06 | 343-200 | not yet reported which blocks → | Videotron Ltd. | 8306 | Rockland | — |
| 2015-04-29 | 343-541 | not yet reported which blocks → | Bell Mobility | 6574 | Ottawa-Hull | — |
| 2015-03-02 | 343-472 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Madoc | — |
| 2015-01-14 | 343-645 | not yet reported which blocks → | Bell Mobility | 6574 | Belleville | — |
| 2014-11-14 | 343-262 | not yet reported which blocks → | TELUS Mobility | 8303 | Ottawa-Hull | — |
| 2014-11-14 | 343-500 | not yet reported which blocks → | Iristel Inc. | 154E | Hawkesbury | — |
| 2014-10-14 | 343-473 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Vankleek Hill | — |
| 2014-10-14 | 343-474 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Alexandria | — |
| 2014-10-14 | 343-475 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Cornwall | — |
| 2014-08-21 | 343-292 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Ottawa-Hull | — |
| 2014-08-07 | 343-213 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Carleton Place | — |
| 2014-07-31 | 343-320 | not yet reported which blocks → | Comwave Networks | 160G | Brockville | — |
| 2014-07-31 | 343-330 | not yet reported which blocks → | Comwave Networks | 160G | Cornwall | — |
| 2014-07-30 | 343-691 | not yet reported which blocks → | Comwave Networks | 160G | Alfred | — |
| 2014-07-23 | 343-888 | not yet reported which blocks → | Distributel | 082E | Ottawa-Hull | — |
| 2014-06-17 | 343-476 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Bancroft | — |
| 2014-05-30 | 343-540 | not yet reported which blocks → | Bell Mobility | 6574 | Ottawa-Hull | — |
| 2014-05-27 | 343-222 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Picton | — |
| 2014-03-03 | 343-600 | not yet reported which blocks → | Iristel Inc. | 154E | Belleville | — |
| 2014-02-11 | 343-344 | not yet reported which blocks → | Distributel | 082E | Kingston | — |
| 2014-01-24 | 343-225 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Brockville | — |
| 2013-12-18 | 343-288 | not yet reported which blocks → | Roxborough Telephone Company Ltd. | 287H | Cornwall | — |
| 2013-12-06 | 343-688 | not yet reported which blocks → | Comwave Networks | 160G | Ottawa-Hull | — |
| 2013-12-06 | 343-689 | not yet reported which blocks → | Comwave Networks | 160G | Orleans | — |
| 2013-12-06 | 343-690 | not yet reported which blocks → | Comwave Networks | 160G | Kanata-Stittsville | — |
| 2013-11-14 | 343-402 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Perth | — |
| 2013-11-12 | 343-401 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Bancroft | — |
| 2013-10-30 | 343-925 | not yet reported which blocks → | Distributel | 082E | Ottawa-Hull | — |
| 2013-10-29 | 343-221 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Orleans | — |
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.