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 249
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2025-12-03 | 249-721 | not yet reported which blocks → | Iristel Inc. | 154E | Orillia | — |
| 2025-05-02 | 249-560 | not yet reported which blocks → | Iristel Inc. | 154E | North Bay | — |
| 2024-10-11 | 249-809 | not yet reported which blocks → | Iristel Inc. | 154E | Sudbury | — |
| 2024-09-26 | 249-579 | not yet reported which blocks → | Iristel Inc. | 154E | Midland | — |
| 2024-09-26 | 249-808 | not yet reported which blocks → | Iristel Inc. | 154E | Markstay | — |
| 2024-09-24 | 249-580 | not yet reported which blocks → | Iristel Inc. | 154E | Haliburton | — |
| 2024-09-24 | 249-679 | not yet reported which blocks → | Iristel Inc. | 154E | Huntsville | — |
| 2024-09-20 | 249-468 | not yet reported which blocks → | Iristel Inc. | 154E | Gravenhurst | — |
| 2024-09-20 | 249-475 | not yet reported which blocks → | Iristel Inc. | 154E | Gore Bay | — |
| 2024-09-18 | 249-421 | not yet reported which blocks → | Iristel Inc. | 154E | Espanola | — |
| 2024-09-13 | 249-481 | not yet reported which blocks → | Iristel Inc. | 154E | Collingwood | — |
| 2024-09-12 | 249-531 | not yet reported which blocks → | Iristel Inc. | 154E | Campbellford | — |
| 2024-08-27 | 249-530 | not yet reported which blocks → | Iristel Inc. | 154E | Alliston | — |
| 2024-06-07 | 249-451 | not yet reported which blocks → | Iristel Inc. | 154E | Orillia | — |
| 2024-05-30 | 249-482 | not yet reported which blocks → | Iristel Inc. | 154E | Bracebridge | — |
| 2024-05-30 | 249-483 | not yet reported which blocks → | Iristel Inc. | 154E | Borden-Angus | — |
| 2024-05-30 | 249-485 | not yet reported which blocks → | Iristel Inc. | 154E | Bobcaygeon | — |
| 2024-05-01 | 249-476 | not yet reported which blocks → | Iristel Inc. | 154E | Foleyet | — |
| 2023-09-07 | 249-524 | not yet reported which blocks → | Iristel Inc. | 154E | Alliston | — |
| 2023-09-07 | 249-527 | not yet reported which blocks → | Iristel Inc. | 154E | Alliston | — |
| 2023-09-07 | 249-528 | not yet reported which blocks → | Iristel Inc. | 154E | Campbellford | — |
| 2023-09-07 | 249-529 | not yet reported which blocks → | Iristel Inc. | 154E | Campbellford | — |
| 2023-09-07 | 249-544 | not yet reported which blocks → | Iristel Inc. | 154E | Barrie | — |
| 2023-09-07 | 249-546 | not yet reported which blocks → | Iristel Inc. | 154E | Barrie | — |
| 2023-09-07 | 249-680 | not yet reported which blocks → | Iristel Inc. | 154E | Peterborough | — |
| 2023-09-07 | 249-681 | not yet reported which blocks → | Iristel Inc. | 154E | Peterborough | — |
| 2023-02-09 | 249-480 | not yet reported which blocks → | Iristel Inc. | 154E | Haliburton | — |
| 2022-11-29 | 249-554 | not yet reported which blocks → | Iristel Inc. | 154E | Midland | — |
| 2021-03-05 | 249-523 | not yet reported which blocks → | Iristel Inc. | 154E | Alliston | — |
| 2020-09-24 | 249-294 | not yet reported which blocks → | Iristel Inc. | 154E | Borden-Angus | — |
| 2020-09-21 | 249-402 | not yet reported which blocks → | Iristel Inc. | 154E | Espanola | — |
| 2019-12-27 | 249-444 | not yet reported which blocks → | Iristel Inc. | 154E | Barrie | — |
| 2019-12-24 | 249-209 | not yet reported which blocks → | Iristel Inc. | 154E | Orillia | — |
| 2019-11-11 | 249-559 | not yet reported which blocks → | Iristel Inc. | 154E | Midland | — |
| 2019-10-17 | 249-802 | not yet reported which blocks → | Iristel Inc. | 154E | Haliburton | — |
| 2019-10-17 | 249-803 | not yet reported which blocks → | Iristel Inc. | 154E | Markstay | — |
| 2019-10-11 | 249-801 | not yet reported which blocks → | Iristel Inc. | 154E | Algoma Mills | — |
| 2019-07-30 | 249-703 | not yet reported which blocks → | Iristel Inc. | 154E | Lindsay | — |
| 2019-07-18 | 249-202 | not yet reported which blocks → | Iristel Inc. | 154E | Espanola | — |
| 2019-07-04 | 249-486 | not yet reported which blocks → | Iristel Inc. | 154E | Collingwood | — |
| 2019-05-29 | 249-487 | not yet reported which blocks → | Iristel Inc. | 154E | Bracebridge | — |
| 2019-05-28 | 249-488 | not yet reported which blocks → | Iristel Inc. | 154E | Bobcaygeon | — |
| 2019-05-06 | 249-489 | not yet reported which blocks → | Iristel Inc. | 154E | Barrie | — |
| 2018-07-09 | 249-510 | not yet reported which blocks → | Iristel Inc. | 154E | Peterborough | — |
| 2018-07-06 | 249-508 | not yet reported which blocks → | Iristel Inc. | 154E | Algoma Mills | — |
| 2018-07-06 | 249-509 | not yet reported which blocks → | Iristel Inc. | 154E | Campbellford | — |
| 2018-07-05 | 249-804 | not yet reported which blocks → | Iristel Inc. | 154E | Sudbury | — |
| 2018-06-26 | 249-507 | not yet reported which blocks → | Iristel Inc. | 154E | Sault Ste. Marie | — |
| 2017-11-28 | 249-506 | not yet reported which blocks → | Iristel Inc. | 154E | North Bay | — |
| 2017-10-30 | 249-201 | not yet reported which blocks → | Iristel Inc. | 154E | Espanola | — |
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.