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
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May 2026
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Dec 2025
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2021-06-24 | 365-842 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Orono | — |
| 2021-06-24 | 365-843 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Port Perry | — |
| 2021-06-24 | 365-844 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | South Pickering | — |
| 2021-06-21 | 365-590 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Campbellville | — |
| 2021-06-21 | 365-591 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Freelton | — |
| 2021-06-21 | 365-592 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Georgetown | — |
| 2021-06-21 | 365-593 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Milton | — |
| 2021-06-21 | 365-594 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Oakville | — |
| 2021-06-21 | 365-595 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Burlington | — |
| 2021-06-18 | 365-589 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Waterdown | — |
| 2021-06-08 | 365-748 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Cooksville | — |
| 2021-04-23 | 365-429 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| 2021-04-22 | 365-428 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| 2021-04-19 | 365-427 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| 2021-03-02 | 365-232 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Bowmanville | — |
| 2021-02-23 | 365-736 | not yet reported which blocks → | Iristel Inc. | 154E | Thornhill | — |
| 2021-02-23 | 365-980 | not yet reported which blocks → | Iristel Inc. | 154E | Markham | — |
| 2021-02-22 | 365-263 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Newcastle | — |
| 2021-02-22 | 365-737 | not yet reported which blocks → | Videotron Ltd. | 787G | Burlington | — |
| 2021-02-22 | 365-738 | not yet reported which blocks → | Videotron Ltd. | 383F | Newmarket | — |
| 2021-02-22 | 365-739 | not yet reported which blocks → | Videotron Ltd. | 787G | Oakville | — |
| 2021-02-19 | 365-262 | not yet reported which blocks → | TELUS Mobility | 8303 | Ajax-Pickering | — |
| 2021-02-18 | 365-318 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Kleinburg | — |
| 2021-02-10 | 365-960 | not yet reported which blocks → | Iristel Inc. | 154E | Markham | — |
| 2021-02-10 | 365-970 | not yet reported which blocks → | Iristel Inc. | 154E | Markham | — |
| 2021-02-03 | 365-370 | not yet reported which blocks → | Fibernetics Corporation | 464D | Brampton | — |
| 2021-01-27 | 365-440 | not yet reported which blocks → | Bell Mobility | 6574 | Brampton | — |
| 2021-01-05 | 365-637 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| 2020-12-24 | 365-876 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Newmarket | — |
| 2020-12-21 | 365-426 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| 2020-12-18 | 365-776 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Waterdown | — |
| 2020-12-16 | 365-662 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Oshawa | — |
| 2020-11-20 | 365-670 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Stoney Creek | — |
| 2020-10-20 | 365-350 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Fort Erie | — |
| 2020-10-06 | 365-369 | not yet reported which blocks → | Fibernetics Corporation | 464D | Beeton | — |
| 2020-09-24 | 365-234 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Bradford | — |
| 2020-09-22 | 365-849 | not yet reported which blocks → | Fibernetics Corporation | 464D | Gormley | — |
| 2020-09-21 | 365-297 | not yet reported which blocks → | Iristel Inc. | 154E | Ajax-Pickering | — |
| 2020-09-14 | 365-795 | not yet reported which blocks → | Iristel Inc. | 154E | Hamilton | — |
| 2020-09-09 | 365-536 | not yet reported which blocks → | Iristel Inc. | 154E | Unionville | — |
| 2020-09-01 | 365-977 | not yet reported which blocks → | Iristel Inc. | 154E | Oakville | — |
| 2020-09-01 | 365-990 | not yet reported which blocks → | Iristel Inc. | 154E | Markham | — |
| 2020-08-31 | 365-544 | not yet reported which blocks → | Iristel Inc. | 154E | Brampton | — |
| 2020-08-27 | 365-725 | not yet reported which blocks → | Iristel Inc. | 154E | Thornhill | — |
| 2020-08-27 | 365-735 | not yet reported which blocks → | Iristel Inc. | 154E | Thornhill | — |
| 2020-08-21 | 365-935 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | St. Catharines-Thorold | — |
| 2020-08-21 | 365-948 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Selkirk | — |
| 2020-08-21 | 365-949 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Stevensville | — |
| 2020-08-21 | 365-951 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Vineland | — |
| 2020-08-21 | 365-952 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Wainfleet | — |
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.