NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/21/2026
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
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 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 | — |
| 2015-07-20 | 343-214 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Manotick | — |
| 2014-08-07 | 343-213 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Carleton Place | — |
| 2014-05-27 | 343-222 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Picton | — |
| 2014-01-24 | 343-225 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Brockville | — |
| 2013-06-11 | 343-355 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Belleville | — |
| 2013-06-11 | 343-356 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Cornwall | — |
| 2012-01-19 | 343-357 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Bancroft | — |
| 2011-04-01 | 343-212 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Jockvale | — |
| 2010-08-13 | 343-358 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Kingston | — |
| 2010-08-13 | 343-359 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Kanata-Stittsville | — |
| 2010-08-13 | 343-360 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Ottawa-Hull | — |
| 2010-08-13 | 343-361 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Renfrew | — |
| 2010-08-13 | 343-362 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Belleville | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.