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 |
|---|---|---|---|---|---|---|
| 2026-08-25 | 343-850 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Pakenham | — |
| 2026-04-17 | 343-662 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Napanee | — |
| 2026-04-17 | 343-663 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Kingston | — |
| 2026-04-17 | 343-664 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Odessa | — |
| 2026-04-16 | 343-661 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Gananoque | — |
| 2026-02-19 | 343-617 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Wooler | — |
| 2025-12-22 | 343-496 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Ottawa-Hull | — |
| 2025-12-22 | 343-497 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Ottawa-Hull | — |
| 2025-12-22 | 343-612 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Ottawa-Hull | — |
| 2025-12-22 | 343-615 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Ottawa-Hull | — |
| 2025-12-22 | 343-616 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Ottawa-Hull | — |
| 2025-10-14 | 343-518 | not yet reported which blocks → | Iristel Inc. | 154E | Hawkesbury | — |
| 2025-09-04 | 343-484 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Ottawa-Hull | — |
| 2025-09-04 | 343-486 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Ottawa-Hull | — |
| 2025-09-04 | 343-487 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Ottawa-Hull | — |
| 2025-08-25 | 343-629 | not yet reported which blocks → | Cogeco Connexion Inc. | 221K | Chesterville | — |
| 2025-06-25 | 343-469 | not yet reported which blocks → | Bell Canada | 8051 | Ottawa-Hull | — |
| 2025-05-30 | 343-329 | not yet reported which blocks → | Bell Canada | 984C | Sharbot Lake | — |
| 2025-05-30 | 343-468 | not yet reported which blocks → | Bell Canada | 984C | Westport | — |
| 2025-05-26 | 343-695 | not yet reported which blocks → | Cogeco Connexion Inc. | 221K | Hawkesbury | — |
| 2025-05-02 | 343-328 | not yet reported which blocks → | Iristel Inc. | 154E | Perth | — |
| 2025-05-02 | 343-514 | not yet reported which blocks → | Iristel Inc. | 154E | Hawkesbury | — |
| 2025-02-21 | 343-332 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Ottawa-Hull | — |
| 2025-02-21 | 343-336 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Ottawa-Hull | — |
| 2025-02-14 | 343-566 | not yet reported which blocks → | Cogeco Connexion Inc. | 221K | Arnprior | — |
| 2025-02-14 | 343-614 | not yet reported which blocks → | Cogeco Connexion Inc. | 221K | Pembroke | — |
| 2025-02-12 | 343-461 | not yet reported which blocks → | Cogeco Connexion Inc. | 221K | Belleville | — |
| 2025-02-12 | 343-510 | not yet reported which blocks → | Cogeco Connexion Inc. | 221K | Deseronto | — |
| 2025-02-12 | 343-564 | not yet reported which blocks → | Cogeco Connexion Inc. | 221K | Smiths Falls | — |
| 2025-02-12 | 343-565 | not yet reported which blocks → | Cogeco Connexion Inc. | 221K | Kingston | — |
| 2024-12-27 | 343-626 | not yet reported which blocks → | Cogeco Connexion Inc. | 221K | Brockville | — |
| 2024-10-15 | 343-842 | not yet reported which blocks → | Iristel Inc. | 154E | Vankleek Hill | — |
| 2024-10-09 | 343-802 | not yet reported which blocks → | Iristel Inc. | 154E | Smiths Falls | — |
| 2024-10-03 | 343-979 | not yet reported which blocks → | TELUS Mobility | 8303 | Ottawa-Hull | — |
| 2024-09-25 | 343-326 | not yet reported which blocks → | Iristel Inc. | 154E | Kanata-Stittsville | — |
| 2024-09-04 | 343-296 | not yet reported which blocks → | Iristel Inc. | 154E | Carleton Place | — |
| 2024-08-27 | 343-459 | not yet reported which blocks → | Iristel Inc. | 154E | Belleville | — |
| 2024-05-13 | 343-620 | not yet reported which blocks → | Videotron Ltd. | 328F | Pembroke | — |
| 2024-05-03 | 343-337 | not yet reported which blocks → | Iristel Inc. | 154E | Merrickville | — |
| 2024-03-26 | 343-509 | not yet reported which blocks → | Videotron Ltd. | 383F | Smiths Falls | — |
| 2024-03-22 | 343-508 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Rolphton | — |
| 2024-02-06 | 343-903 | not yet reported which blocks → | Fibernetics Corporation | 464D | Smiths Falls | — |
| 2024-01-08 | 343-660 | not yet reported which blocks → | Bell Mobility | 6574 | Ottawa-Hull | — |
| 2023-12-18 | 343-324 | not yet reported which blocks → | TELUS Mobility | 8303 | Ottawa-Hull | — |
| 2023-10-30 | 343-554 | not yet reported which blocks → | Iristel Inc. | 346J | Ottawa-Hull | — |
| 2023-10-30 | 343-556 | not yet reported which blocks → | Iristel Inc. | 346J | Ottawa-Hull | — |
| 2023-10-23 | 343-973 | not yet reported which blocks → | Fibernetics Corporation | 464D | Arnprior | — |
| 2023-10-23 | 343-974 | not yet reported which blocks → | Fibernetics Corporation | 464D | Kanata-Stittsville | — |
| 2023-10-23 | 343-975 | not yet reported which blocks → | Fibernetics Corporation | 464D | Ottawa-Hull | — |
| 2023-10-04 | 343-634 | not yet reported which blocks → | Iristel Inc. | 154E | Cornwall | — |
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.