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 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 |
|---|---|---|---|---|---|---|
| 2026-02-19 | 343-617 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Wooler | — |
| 2024-03-22 | 343-508 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Rolphton | — |
| 2022-12-01 | 343-796 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Inverary | — |
| 2022-12-01 | 343-797 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Tweed | — |
| 2022-12-01 | 343-798 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Pakenham | — |
| 2022-11-21 | 343-746 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | North Augusta | — |
| 2022-03-28 | 343-223 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Chalk River | — |
| 2021-12-06 | 343-227 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Ottawa-Hull | — |
| 2019-11-11 | 343-686 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Ottawa-Hull | — |
| 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 | — |
| 2018-07-23 | 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 | — |
| 2018-02-09 | 343-323 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Kingston | — |
| 2018-01-04 | 343-937 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Cornwall | — |
| 2017-11-28 | 343-216 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Sydenham | — |
| 2017-11-28 | 343-217 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Tamworth | — |
| 2017-11-28 | 343-218 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Elgin | — |
| 2017-11-28 | 343-219 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Lanark | — |
| 2017-11-28 | 343-220 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Portland | — |
| 2017-09-19 | 343-249 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Athens | — |
| 2017-09-19 | 343-250 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Cardinal | — |
| 2017-09-19 | 343-251 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Delta | — |
| 2017-09-18 | 343-241 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Barry's Bay | — |
| 2017-09-18 | 343-242 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Calabogie | — |
| 2017-09-18 | 343-243 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Cobden | — |
| 2017-09-18 | 343-245 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Deep River | — |
| 2017-09-18 | 343-246 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Eganville | — |
| 2017-09-18 | 343-247 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Killaloe | — |
| 2017-09-18 | 343-248 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Whitney | — |
| 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 | — |
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.