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 365
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 |
|---|---|---|---|---|---|---|
| 2018-03-21 | 365-216 | not yet reported which blocks → | Distributel | 082E | Mount Hope | — |
| 2018-03-21 | 365-218 | not yet reported which blocks → | Distributel | 082E | Stoney Creek | — |
| 2018-03-21 | 365-219 | not yet reported which blocks → | Distributel | 082E | West Lincoln | — |
| 2018-03-21 | 365-221 | not yet reported which blocks → | Distributel | 082E | Winona | — |
| 2018-03-07 | 365-807 | not yet reported which blocks → | Iristel Inc. | 154E | Hamilton | — |
| 2018-03-07 | 365-808 | not yet reported which blocks → | Iristel Inc. | 154E | Oshawa | — |
| 2018-03-01 | 365-805 | not yet reported which blocks → | Iristel Inc. | 154E | Aurora | — |
| 2018-03-01 | 365-806 | not yet reported which blocks → | Iristel Inc. | 154E | Brampton | — |
| 2018-02-21 | 365-228 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Oakville | — |
| 2018-02-21 | 365-338 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Oakville | — |
| 2018-02-07 | 365-336 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Hamilton | — |
| 2018-02-07 | 365-366 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Hamilton | — |
| 2018-02-06 | 365-243 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Garden Hill | — |
| 2018-01-24 | 365-883 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Hamilton | — |
| 2017-12-21 | 365-242 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Port Credit | — |
| 2017-12-20 | 365-688 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Oshawa | — |
| 2017-12-04 | 365-887 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Richmond Hill | — |
| 2017-11-28 | 365-251 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Caledonia | — |
| 2017-11-28 | 365-252 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Hagersville | — |
| 2017-11-28 | 365-253 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Keswick | — |
| 2017-11-28 | 365-254 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Schomberg | — |
| 2017-11-27 | 365-220 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Streetsville | — |
| 2017-11-27 | 365-288 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Cooksville | — |
| 2017-11-27 | 365-388 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Maple | — |
| 2017-11-27 | 365-597 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Thornhill | — |
| 2017-11-27 | 365-608 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Unionville | — |
| 2017-11-27 | 365-788 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Brampton | — |
| 2017-11-27 | 365-881 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Oshawa | — |
| 2017-11-27 | 365-988 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Ajax-Pickering | — |
| 2017-11-20 | 365-695 | not yet reported which blocks → | Iristel Inc. | 154E | Markham | — |
| 2017-11-20 | 365-696 | not yet reported which blocks → | Iristel Inc. | 154E | Markham | — |
| 2017-11-20 | 365-697 | not yet reported which blocks → | Iristel Inc. | 154E | Markham | — |
| 2017-11-20 | 365-698 | not yet reported which blocks → | Iristel Inc. | 154E | Markham | — |
| 2017-11-06 | 365-599 | not yet reported which blocks → | Iristel Inc. | 154E | Thornhill | — |
| 2017-10-04 | 365-604 | not yet reported which blocks → | Iristel Inc. | 154E | Oakville | — |
| 2017-10-03 | 365-603 | not yet reported which blocks → | Iristel Inc. | 154E | Niagara Falls | — |
| 2017-09-19 | 365-208 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Cayuga | — |
| 2017-09-19 | 365-209 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Dunnville | — |
| 2017-08-14 | 365-236 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Brooklin | — |
| 2017-08-14 | 365-237 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Orono | — |
| 2017-08-14 | 365-238 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Port Perry | — |
| 2017-08-14 | 365-239 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Blackstock | — |
| 2017-08-14 | 365-240 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Bowmanville | — |
| 2017-08-14 | 365-241 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Newcastle | — |
| 2017-08-08 | 365-660 | not yet reported which blocks → | Iristel Inc. | 154E | St. Catharines-Thorold | — |
| 2017-08-03 | 365-299 | not yet reported which blocks → | Iristel Inc. | 154E | Ajax-Pickering | — |
| 2017-07-20 | 365-699 | not yet reported which blocks → | Iristel Inc. | 154E | Markham | — |
| 2017-07-19 | 365-326 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Campbellville | — |
| 2017-07-19 | 365-327 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Freelton | — |
| 2017-07-19 | 365-328 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Georgetown | — |
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.