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 |
|---|---|---|---|---|---|---|
| 2017-08-14 | 343-215 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Hawkesbury | — |
| 2017-07-25 | 343-228 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Denbigh | — |
| 2017-07-25 | 343-229 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Madoc | — |
| 2017-07-25 | 343-230 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Marmora | — |
| 2017-07-25 | 343-231 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Maynooth | — |
| 2017-07-25 | 343-232 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Northbrook | — |
| 2017-07-25 | 343-233 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Plevna | — |
| 2017-07-25 | 343-234 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Tweed | — |
| 2017-07-25 | 343-235 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Alexandria | — |
| 2017-07-25 | 343-236 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Iroquois | — |
| 2017-07-25 | 343-237 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Maxville | — |
| 2017-07-25 | 343-238 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Morrisburg | — |
| 2017-07-25 | 343-239 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | St. Isidore | — |
| 2017-07-24 | 343-747 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | L'Orignal | — |
| 2017-07-24 | 343-748 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Vankleek Hill | — |
| 2017-07-24 | 343-749 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Wellington | — |
| 2017-07-24 | 343-750 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Stirling | — |
| 2017-07-24 | 343-751 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Frankford | — |
| 2017-07-24 | 343-752 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Bloomfield | — |
| 2017-07-24 | 343-996 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Ottawa-Hull | — |
| 2017-07-24 | 343-997 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Ottawa-Hull | — |
| 2017-06-21 | 343-483 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Morrisburg | — |
| 2017-05-29 | 343-305 | not yet reported which blocks → | Iristel Inc. | 154E | Kingston | — |
| 2017-05-29 | 343-306 | not yet reported which blocks → | Iristel Inc. | 154E | Kingston | — |
| 2017-05-26 | 343-529 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Plantagenet | — |
| 2017-05-26 | 343-530 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Richmond | — |
| 2017-05-26 | 343-531 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Rockland | — |
| 2017-05-26 | 343-532 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Winchester | — |
| 2017-05-26 | 343-533 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Clarence Creek | — |
| 2017-05-26 | 343-534 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Crysler | — |
| 2017-05-26 | 343-535 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Cumberland | — |
| 2017-05-26 | 343-536 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Navan | — |
| 2017-05-26 | 343-537 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Pakenham | — |
| 2017-05-26 | 343-538 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Russell | — |
| 2017-05-26 | 343-539 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | South Mountain | — |
| 2017-05-25 | 343-520 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Alfred | — |
| 2017-05-25 | 343-521 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Almonte | — |
| 2017-05-25 | 343-522 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Bourget | — |
| 2017-05-25 | 343-523 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Casselman | — |
| 2017-05-25 | 343-524 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Chesterville | — |
| 2017-05-25 | 343-525 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Embrun | — |
| 2017-05-25 | 343-526 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Gloucester | — |
| 2017-05-25 | 343-527 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Merrickville | — |
| 2017-05-25 | 343-528 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Orleans | — |
| 2017-05-12 | 343-983 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Cornwall | — |
| 2017-05-11 | 343-481 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Iroquois | — |
| 2017-05-11 | 343-482 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Williamsburg | — |
| 2017-05-11 | 343-982 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Brockville | — |
| 2017-02-23 | 343-601 | not yet reported which blocks → | Iristel Inc. | 154E | Belleville | — |
| 2017-02-08 | 343-618 | not yet reported which blocks → | Bell Canada | 8051 | Jockvale | — |
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.