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
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2022-07-28 | 365-913 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| 2022-07-12 | 365-267 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Victoria | — |
| 2022-07-12 | 365-296 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Ridgeway | — |
| 2022-07-12 | 365-823 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Bethesda | — |
| 2022-07-12 | 365-824 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Keswick | — |
| 2022-05-06 | 365-434 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| 2022-05-02 | 365-433 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| 2022-04-12 | 365-962 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Cayuga | — |
| 2022-03-28 | 365-875 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Castleton | — |
| 2022-03-24 | 365-432 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| 2022-03-24 | 365-638 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| 2022-03-23 | 365-431 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| 2022-02-18 | 365-684 | not yet reported which blocks → | Fibernetics Corporation | 464D | Malton | — |
| 2022-02-17 | 365-683 | not yet reported which blocks → | Fibernetics Corporation | 464D | Cooksville | — |
| 2022-02-01 | 365-734 | not yet reported which blocks → | Iristel Inc. | 154E | Thornhill | — |
| 2022-02-01 | 365-847 | not yet reported which blocks → | Bell Canada | 8051 | Snelgrove | — |
| 2022-01-25 | 365-363 | not yet reported which blocks → | Iristel Inc. | 154E | Markham | — |
| 2022-01-25 | 365-376 | not yet reported which blocks → | Iristel Inc. | 154E | Markham | — |
| 2022-01-24 | 365-744 | not yet reported which blocks → | Iristel Inc. | 154E | Milton | — |
| 2022-01-19 | 365-640 | not yet reported which blocks → | Beanfield Technologies Inc. | 575G | Queensville | — |
| 2022-01-19 | 365-641 | not yet reported which blocks → | Beanfield Technologies Inc. | 575G | Schomberg | — |
| 2022-01-19 | 365-642 | not yet reported which blocks → | Beanfield Technologies Inc. | 575G | Stouffville | — |
| 2021-12-21 | 365-771 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Winona | — |
| 2021-12-16 | 365-766 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Burlington | — |
| 2021-12-16 | 365-966 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Burlington | — |
| 2021-11-22 | 365-669 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Blackstock | — |
| 2021-10-15 | 365-730 | not yet reported which blocks → | Iristel Inc. | 154E | Thornhill | — |
| 2021-10-15 | 365-731 | not yet reported which blocks → | Iristel Inc. | 154E | Thornhill | — |
| 2021-10-15 | 365-732 | not yet reported which blocks → | Iristel Inc. | 154E | Thornhill | — |
| 2021-10-05 | 365-224 | not yet reported which blocks → | Beanfield Technologies Inc. | 575G | Woodbridge | — |
| 2021-10-05 | 365-534 | not yet reported which blocks → | Beanfield Technologies Inc. | 575G | Palgrave | — |
| 2021-10-05 | 365-752 | not yet reported which blocks → | Beanfield Technologies Inc. | 575G | Nobleton | — |
| 2021-10-05 | 365-753 | not yet reported which blocks → | Beanfield Technologies Inc. | 575G | Oak Ridges | — |
| 2021-10-05 | 365-920 | not yet reported which blocks → | Beanfield Technologies Inc. | 575G | Thornhill | — |
| 2021-10-04 | 365-430 | not yet reported which blocks → | Beanfield Technologies Inc. | 575G | Markham | — |
| 2021-10-04 | 365-750 | not yet reported which blocks → | Beanfield Technologies Inc. | 575G | Richmond Hill | — |
| 2021-10-04 | 365-751 | not yet reported which blocks → | Beanfield Technologies Inc. | 575G | Newmarket | — |
| 2021-09-27 | 365-371 | not yet reported which blocks → | Fibernetics Corporation | 464D | Binbrook | — |
| 2021-09-27 | 365-372 | not yet reported which blocks → | Fibernetics Corporation | 464D | Hagersville | — |
| 2021-09-27 | 365-373 | not yet reported which blocks → | Fibernetics Corporation | 464D | West Lincoln | — |
| 2021-09-27 | 365-374 | not yet reported which blocks → | Fibernetics Corporation | 464D | Winona | — |
| 2021-09-27 | 365-812 | not yet reported which blocks → | Fibernetics Corporation | 464D | Blackstock | — |
| 2021-09-27 | 365-813 | not yet reported which blocks → | Fibernetics Corporation | 464D | Hampton | — |
| 2021-09-27 | 365-814 | not yet reported which blocks → | Fibernetics Corporation | 464D | Newtonville | — |
| 2021-09-27 | 365-815 | not yet reported which blocks → | Fibernetics Corporation | 464D | Orono | — |
| 2021-09-24 | 365-547 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Kleinburg | — |
| 2021-09-24 | 365-548 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Maple | — |
| 2021-09-24 | 365-549 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Markham | — |
| 2021-09-24 | 365-554 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Newmarket | — |
| 2021-09-24 | 365-561 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Mount Albert | — |
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.