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 |
|---|---|---|---|---|---|---|
| 2019-12-20 | 343-558 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Ottawa-Hull | — |
| 2019-12-19 | 343-580 | not yet reported which blocks → | Videotron Ltd. | 383F | Kingston | — |
| 2019-11-28 | 343-366 | not yet reported which blocks → | TELUS Mobility | 646F | Kingston | — |
| 2019-11-28 | 343-368 | not yet reported which blocks → | TELUS Mobility | 646F | Ottawa-Hull | — |
| 2019-11-11 | 343-686 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Ottawa-Hull | — |
| 2019-10-17 | 343-338 | not yet reported which blocks → | Iristel Inc. | 154E | Merrickville | — |
| 2019-09-04 | 343-588 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | Ottawa-Hull | — |
| 2019-07-30 | 343-807 | not yet reported which blocks → | Iristel Inc. | 154E | Ottawa-Hull | — |
| 2019-07-30 | 343-808 | not yet reported which blocks → | Iristel Inc. | 154E | Ottawa-Hull | — |
| 2019-07-30 | 343-809 | not yet reported which blocks → | Iristel Inc. | 154E | Ottawa-Hull | — |
| 2019-07-25 | 343-313 | not yet reported which blocks → | Iristel Inc. | 154E | Jockvale | — |
| 2019-06-26 | 343-429 | not yet reported which blocks → | Iristel Inc. | 154E | Carleton Place | — |
| 2019-06-26 | 343-806 | not yet reported which blocks → | Iristel Inc. | 154E | Ottawa-Hull | — |
| 2019-06-14 | 343-502 | not yet reported which blocks → | Iristel Inc. | 346J | Ottawa-Hull | — |
| 2019-05-29 | 343-501 | not yet reported which blocks → | Iristel Inc. | 154E | Brockville | — |
| 2019-04-02 | 343-240 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Carp | — |
| 2019-04-02 | 343-252 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Seeleys Bay | — |
| 2019-04-02 | 343-253 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Coe Hill | — |
| 2018-11-22 | 343-297 | not yet reported which blocks → | Videotron Ltd. | 787G | Ottawa-Hull | — |
| 2018-10-03 | 343-636 | not yet reported which blocks → | Videotron Ltd. | 383F | Ingleside | — |
| 2018-10-03 | 343-980 | not yet reported which blocks → | Videotron Ltd. | 383F | Petawawa | — |
| 2018-10-02 | 343-737 | not yet reported which blocks → | Videotron Ltd. | 383F | St-Regis | — |
| 2018-10-02 | 343-970 | not yet reported which blocks → | Videotron Ltd. | 383F | Cobden | — |
| 2018-09-27 | 343-295 | not yet reported which blocks → | Videotron Ltd. | 383F | Napanee | — |
| 2018-09-27 | 343-325 | not yet reported which blocks → | Videotron Ltd. | 383F | Trenton | — |
| 2018-09-27 | 343-335 | not yet reported which blocks → | Videotron Ltd. | 383F | Prescott | — |
| 2018-09-26 | 343-405 | not yet reported which blocks → | Videotron Ltd. | 383F | Morrisburg | — |
| 2018-09-25 | 343-315 | not yet reported which blocks → | Videotron Ltd. | 383F | Brighton | — |
| 2018-09-24 | 343-260 | not yet reported which blocks → | TELUS Mobility | 8303 | Brockville | — |
| 2018-09-20 | 343-471 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Tweed | — |
| 2018-08-29 | 343-367 | not yet reported which blocks → | Videotron Ltd. | 383F | Belleville | — |
| 2018-08-29 | 343-507 | not yet reported which blocks → | Videotron Ltd. | 383F | Brockville | — |
| 2018-08-29 | 343-567 | not yet reported which blocks → | Videotron Ltd. | 383F | Pembroke | — |
| 2018-08-29 | 343-867 | not yet reported which blocks → | Videotron Ltd. | 383F | Cornwall | — |
| 2018-08-23 | 343-299 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Cumberland | — |
| 2018-08-23 | 343-334 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Kemptville | — |
| 2018-08-23 | 343-485 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Merrickville | — |
| 2018-08-23 | 343-489 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Orleans | — |
| 2018-08-23 | 343-494 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Richmond | — |
| 2018-08-23 | 343-495 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Rockland | — |
| 2018-08-23 | 343-498 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Winchester | — |
| 2018-08-23 | 343-499 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Kanata-Stittsville | — |
| 2018-08-23 | 343-563 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Casselman | — |
| 2018-08-23 | 343-599 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Ottawa-Hull | — |
| 2018-08-23 | 343-799 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Metcalfe | — |
| 2018-08-23 | 343-899 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Carleton Place | — |
| 2018-08-14 | 343-551 | not yet reported which blocks → | Bell Mobility | 6574 | Ottawa-Hull | — |
| 2018-07-23 | 343-451 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Ottawa-Hull | — |
| 2018-07-23 | 343-452 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Ottawa-Hull | — |
| 2018-07-19 | 343-549 | not yet reported which blocks → | Bell Mobility | 6574 | 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.