NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/21/2026
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 639
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 |
|---|---|---|---|---|---|---|
| 2025-10-20 | 639-967 | not yet reported which blocks → | Iristel Inc. | 154E | Langham | — |
| 2025-03-07 | 639-942 | not yet reported which blocks → | Iristel Inc. | 154E | Regina | — |
| 2024-05-29 | 639-708 | not yet reported which blocks → | Iristel Inc. | 154E | Rosthern | — |
| 2024-03-04 | 639-847 | not yet reported which blocks → | Iristel Inc. | 154E | Saskatoon | — |
| 2024-03-01 | 639-845 | not yet reported which blocks → | Iristel Inc. | 154E | Saskatoon | — |
| 2024-03-01 | 639-846 | not yet reported which blocks → | Iristel Inc. | 154E | Saskatoon | — |
| 2022-11-11 | 639-839 | not yet reported which blocks → | Iristel Inc. | 154E | Davidson | — |
| 2022-01-24 | 639-307 | not yet reported which blocks → | Iristel Inc. | 154E | Lanigan | — |
| 2022-01-21 | 639-565 | not yet reported which blocks → | Iristel Inc. | 154E | Lumsden | — |
| 2022-01-21 | 639-969 | not yet reported which blocks → | Iristel Inc. | 154E | Kipling | — |
| 2022-01-20 | 639-812 | not yet reported which blocks → | Iristel Inc. | 154E | Biggar | — |
| 2022-01-19 | 639-704 | not yet reported which blocks → | Iristel Inc. | 154E | Saskatoon | — |
| 2021-08-09 | 639-383 | not yet reported which blocks → | Iristel Inc. | 154E | Outlook | — |
| 2021-02-11 | 639-806 | not yet reported which blocks → | Iristel Inc. | 154E | Moosomin | — |
| 2020-09-16 | 639-710 | not yet reported which blocks → | Iristel Inc. | 154E | Regina | — |
| 2020-09-16 | 639-829 | not yet reported which blocks → | Iristel Inc. | 154E | Regina | — |
| 2020-09-04 | 639-469 | not yet reported which blocks → | Iristel Inc. | 154E | Langham | — |
| 2020-09-04 | 639-809 | not yet reported which blocks → | Iristel Inc. | 154E | Davidson | — |
| 2020-03-26 | 639-449 | not yet reported which blocks → | Iristel Inc. | 154E | Watrous | — |
| 2020-02-24 | 639-309 | not yet reported which blocks → | Iristel Inc. | 154E | Lanigan | — |
| 2020-02-24 | 639-636 | not yet reported which blocks → | Iristel Inc. | 154E | Rouleau | — |
| 2020-02-03 | 639-709 | not yet reported which blocks → | Iristel Inc. | 154E | Regina | — |
| 2019-12-05 | 639-299 | not yet reported which blocks → | Iristel Inc. | 154E | Kipling | — |
| 2019-12-05 | 639-559 | not yet reported which blocks → | Iristel Inc. | 154E | Fort Qu'Appelle | — |
| 2019-10-28 | 639-700 | not yet reported which blocks → | Iristel Inc. | 346J | Saskatoon | — |
| 2019-10-28 | 639-707 | not yet reported which blocks → | Iristel Inc. | 346J | Regina | — |
| 2019-10-18 | 639-385 | not yet reported which blocks → | Iristel Inc. | 154E | Lumsden | — |
| 2019-10-18 | 639-805 | not yet reported which blocks → | Iristel Inc. | 154E | Saskatoon | — |
| 2019-07-31 | 639-803 | not yet reported which blocks → | Iristel Inc. | 154E | Saskatoon | — |
| 2019-07-31 | 639-804 | not yet reported which blocks → | Iristel Inc. | 154E | Saskatoon | — |
| 2019-05-28 | 639-801 | not yet reported which blocks → | Iristel Inc. | 154E | Biggar | — |
| 2018-07-09 | 639-386 | not yet reported which blocks → | Iristel Inc. | 154E | Kipling | — |
| 2018-03-13 | 639-802 | not yet reported which blocks → | Iristel Inc. | 154E | Moosomin | — |
| 2018-02-28 | 639-637 | not yet reported which blocks → | Iristel Inc. | 154E | Saskatoon | — |
| 2017-11-23 | 639-387 | not yet reported which blocks → | Iristel Inc. | 154E | Langham | — |
| 2017-10-04 | 639-388 | not yet reported which blocks → | Iristel Inc. | 154E | Rosthern | — |
| 2017-09-06 | 639-389 | not yet reported which blocks → | Iristel Inc. | 154E | Davidson | — |
| 2017-08-29 | 639-800 | not yet reported which blocks → | Iristel Inc. | 154E | Biggar | — |
| 2017-02-24 | 639-398 | not yet reported which blocks → | Iristel Inc. | 154E | Saskatoon | — |
| 2017-02-24 | 639-638 | not yet reported which blocks → | Iristel Inc. | 154E | Saskatoon | — |
| 2016-09-13 | 639-397 | not yet reported which blocks → | Iristel Inc. | 154E | Saskatoon | — |
| 2016-03-07 | 639-396 | not yet reported which blocks → | Iristel Inc. | 154E | Rosthern | — |
| 2016-02-16 | 639-395 | not yet reported which blocks → | Iristel Inc. | 154E | Watrous | — |
| 2016-02-11 | 639-393 | not yet reported which blocks → | Iristel Inc. | 154E | Outlook | — |
| 2016-02-11 | 639-394 | not yet reported which blocks → | Iristel Inc. | 154E | Rouleau | — |
| 2016-02-09 | 639-392 | not yet reported which blocks → | Iristel Inc. | 154E | Lumsden | — |
| 2016-02-08 | 639-391 | not yet reported which blocks → | Iristel Inc. | 154E | Langham | — |
| 2016-02-05 | 639-399 | not yet reported which blocks → | Iristel Inc. | 154E | Kipling | — |
| 2016-02-04 | 639-390 | not yet reported which blocks → | Iristel Inc. | 154E | Davidson | — |
| 2013-04-19 | 639-740 | not yet reported which blocks → | Iristel Inc. | 154E | Regina | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.