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 |
|---|---|---|---|---|---|---|
| 2017-07-19 | 365-329 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Waterdown | — |
| 2017-07-19 | 365-330 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Burlington | — |
| 2017-07-19 | 365-331 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Oakville | — |
| 2017-07-19 | 365-332 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Milton | — |
| 2017-07-19 | 365-882 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Aurora | — |
| 2017-07-19 | 365-885 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Ajax-Pickering | — |
| 2017-07-19 | 365-886 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Ajax-Pickering | — |
| 2017-07-13 | 365-217 | not yet reported which blocks → | Iristel Inc. | 154E | Maple | — |
| 2017-06-23 | 365-772 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Dunnville | — |
| 2017-06-23 | 365-773 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Oakville | — |
| 2017-06-23 | 365-779 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Burlington | — |
| 2017-06-06 | 365-601 | not yet reported which blocks → | Iristel Inc. | 154E | Stoney Creek | — |
| 2017-06-06 | 365-602 | not yet reported which blocks → | Iristel Inc. | 154E | Stoney Creek | — |
| 2017-06-02 | 365-250 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Bradford | — |
| 2017-06-02 | 365-260 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Tottenham | — |
| 2017-06-02 | 365-658 | not yet reported which blocks → | Iristel Inc. | 154E | Milton | — |
| 2017-06-02 | 365-659 | not yet reported which blocks → | Iristel Inc. | 154E | Newmarket | — |
| 2017-05-26 | 365-656 | not yet reported which blocks → | Iristel Inc. | 154E | Streetsville | — |
| 2017-05-26 | 365-657 | not yet reported which blocks → | Iristel Inc. | 154E | Hamilton | — |
| 2017-05-04 | 365-442 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Oshawa | — |
| 2017-05-04 | 365-443 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Ajax-Pickering | — |
| 2017-03-14 | 365-315 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Bolton | — |
| 2017-03-01 | 365-225 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Palgrave | — |
| 2017-03-01 | 365-235 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Unionville | — |
| 2017-03-01 | 365-245 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Uxbridge | — |
| 2017-03-01 | 365-255 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Richmond Hill | — |
| 2017-03-01 | 365-285 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Aurora | — |
| 2017-03-01 | 365-295 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Bethesda | — |
| 2017-03-01 | 365-345 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Claremont | — |
| 2017-03-01 | 365-375 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Thornhill | — |
| 2017-03-01 | 365-385 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Maple | — |
| 2017-03-01 | 365-395 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Stouffville | — |
| 2017-03-01 | 365-415 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Gormley | — |
| 2017-03-01 | 365-425 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Keswick | — |
| 2017-03-01 | 365-435 | not yet reported which blocks → | IXICA Communications Inc. | 812H | King City | — |
| 2017-03-01 | 365-445 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Kleinburg | — |
| 2017-03-01 | 365-475 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Mount Albert | — |
| 2017-03-01 | 365-485 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Nobleton | — |
| 2017-03-01 | 365-495 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Oak Ridges | — |
| 2017-03-01 | 365-535 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Queensville | — |
| 2017-03-01 | 365-545 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Schomberg | — |
| 2017-03-01 | 365-575 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Sutton | — |
| 2017-03-01 | 365-755 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Newmarket | — |
| 2017-03-01 | 365-775 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Woodbridge | — |
| 2017-03-01 | 365-955 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Markham | — |
| 2017-02-24 | 365-649 | not yet reported which blocks → | Iristel Inc. | 154E | Claremont | — |
| 2017-02-23 | 365-804 | not yet reported which blocks → | Iristel Inc. | 154E | Brampton | — |
| 2017-02-17 | 365-600 | not yet reported which blocks → | Iristel Inc. | 154E | Markham | — |
| 2017-02-17 | 365-700 | not yet reported which blocks → | Iristel Inc. | 154E | Markham | — |
| 2017-02-08 | 365-701 | not yet reported which blocks → | Bell Canada | 8051 | Hamilton | — |
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.