NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
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
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 |
|---|---|---|---|---|---|---|
| 2020-06-01 | 365-925 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Hamilton | — |
| 2020-06-01 | 365-926 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Mount Hope | — |
| 2020-06-01 | 365-927 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Stoney Creek | — |
| 2020-06-01 | 365-928 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | West Lincoln | — |
| 2020-06-01 | 365-929 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Winona | — |
| 2020-05-29 | 365-930 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Ancaster | — |
| 2020-05-29 | 365-931 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Caledonia | — |
| 2020-05-29 | 365-932 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Binbrook | — |
| 2020-05-29 | 365-934 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Dundas | — |
| 2020-05-20 | 365-896 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Brooklin | — |
| 2020-05-20 | 365-897 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Orono | — |
| 2020-05-20 | 365-907 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Fisherville | — |
| 2020-05-20 | 365-908 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Selkirk | — |
| 2020-05-14 | 365-324 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| 2020-05-11 | 365-747 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Brampton | — |
| 2020-04-28 | 365-874 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Markham | — |
| 2020-04-27 | 365-975 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Streetsville | — |
| 2020-04-06 | 365-261 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Ancaster | — |
| 2020-02-26 | 365-364 | not yet reported which blocks → | Iristel Inc. | 154E | Welland | — |
| 2020-02-10 | 365-353 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Niagara Falls | — |
| 2020-02-10 | 365-377 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Oshawa | — |
| 2020-02-10 | 365-477 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Whitby | — |
| 2020-02-10 | 365-677 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Hamilton | — |
| 2020-02-10 | 365-685 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Ajax-Pickering | — |
| 2020-02-10 | 365-785 | not yet reported which blocks → | IXICA Communications Inc. | 812H | St. Catharines-Thorold | — |
| 2020-02-05 | 365-663 | not yet reported which blocks → | Bell Canada | 8051 | Stoney Creek | — |
| 2020-02-05 | 365-726 | not yet reported which blocks → | Bell Canada | 8051 | Oakville | — |
| 2020-01-31 | 365-745 | not yet reported which blocks → | Iristel Inc. | 154E | Milton | — |
| 2020-01-31 | 365-825 | not yet reported which blocks → | Iristel Inc. | 154E | Newmarket | — |
| 2020-01-30 | 365-645 | not yet reported which blocks → | Iristel Inc. | 154E | Streetsville | — |
| 2020-01-30 | 365-675 | not yet reported which blocks → | Iristel Inc. | 154E | Hamilton | — |
| 2020-01-29 | 365-305 | not yet reported which blocks → | Iristel Inc. | 154E | Ajax-Pickering | — |
| 2020-01-29 | 365-360 | not yet reported which blocks → | Iristel Inc. | 154E | Markham | — |
| 2020-01-29 | 365-361 | not yet reported which blocks → | Iristel Inc. | 154E | Markham | — |
| 2020-01-29 | 365-362 | not yet reported which blocks → | Iristel Inc. | 154E | Markham | — |
| 2020-01-21 | 365-615 | not yet reported which blocks → | Iristel Inc. | 154E | Thornhill | — |
| 2020-01-21 | 365-625 | not yet reported which blocks → | Iristel Inc. | 154E | Thornhill | — |
| 2020-01-20 | 365-476 | not yet reported which blocks → | Videotron Ltd. | 787G | Hamilton | — |
| 2019-12-10 | 365-862 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | West Lincoln | — |
| 2019-12-09 | 365-859 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Caledonia | — |
| 2019-12-09 | 365-860 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Winona | — |
| 2019-12-09 | 365-861 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Hagersville | — |
| 2019-12-09 | 365-892 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Claremont | — |
| 2019-12-09 | 365-893 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Sutton | — |
| 2019-12-09 | 365-895 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Queensville | — |
| 2019-12-06 | 365-890 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Gormley | — |
| 2019-12-06 | 365-891 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Stouffville | — |
| 2019-12-04 | 365-244 | not yet reported which blocks → | Bell Mobility | 6574 | Oshawa | — |
| 2019-11-28 | 365-991 | not yet reported which blocks → | TELUS Mobility | 646F | St. Catharines-Thorold | — |
| 2019-11-18 | 365-533 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Uxbridge | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.