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 873
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 |
|---|---|---|---|---|---|---|
| 2025-10-15 | 873-901 | not yet reported which blocks → | Iristel Inc. | 154E | Ville-Marie | — |
| 2025-09-15 | 873-612 | not yet reported which blocks → | Iristel Inc. | 346J | Kuujjuaq | — |
| 2025-03-10 | 873-708 | not yet reported which blocks → | Iristel Inc. | 154E | Trois-Rivieres | — |
| 2024-12-12 | 873-727 | not yet reported which blocks → | Iristel Inc. | 154E | Amos | — |
| 2024-12-03 | 873-457 | not yet reported which blocks → | Iristel Inc. | 154E | Magog | — |
| 2024-06-24 | 873-586 | not yet reported which blocks → | Iristel Inc. | 154E | Gatineau | — |
| 2024-06-24 | 873-809 | not yet reported which blocks → | Iristel Inc. | 154E | Ste-Agathe | — |
| 2024-05-29 | 873-447 | not yet reported which blocks → | Iristel Inc. | 154E | Umiujaq | — |
| 2024-05-27 | 873-587 | not yet reported which blocks → | Iristel Inc. | 154E | Tasiujaq | — |
| 2024-05-24 | 873-703 | not yet reported which blocks → | Iristel Inc. | 154E | Salluit | — |
| 2024-05-23 | 873-571 | not yet reported which blocks → | Iristel Inc. | 154E | Puvirnituk | — |
| 2024-05-23 | 873-781 | not yet reported which blocks → | Iristel Inc. | 154E | Plessisville | — |
| 2024-05-16 | 873-446 | not yet reported which blocks → | Iristel Inc. | 154E | Inukjuak | — |
| 2024-05-15 | 873-575 | not yet reported which blocks → | Iristel Inc. | 154E | Kangiqsualujjuaq | — |
| 2024-05-15 | 873-576 | not yet reported which blocks → | Iristel Inc. | 154E | Kangiqsujuaq | — |
| 2024-05-15 | 873-578 | not yet reported which blocks → | Iristel Inc. | 154E | Kangirsuk | — |
| 2024-05-08 | 873-743 | not yet reported which blocks → | Iristel Inc. | 154E | Buckingham | — |
| 2024-05-06 | 873-570 | not yet reported which blocks → | Iristel Inc. | 154E | Akulivik | — |
| 2022-07-29 | 873-713 | not yet reported which blocks → | Iristel Inc. | 154E | Grenville | — |
| 2022-01-24 | 873-702 | not yet reported which blocks → | Iristel Inc. | 154E | Drummondville | — |
| 2022-01-24 | 873-774 | not yet reported which blocks → | Iristel Inc. | 154E | Rouyn-Noranda | — |
| 2022-01-20 | 873-306 | not yet reported which blocks → | Iristel Inc. | 154E | Victoriaville | — |
| 2021-08-09 | 873-710 | not yet reported which blocks → | Iristel Inc. | 154E | Ottawa-Hull | — |
| 2020-09-21 | 873-498 | not yet reported which blocks → | Iristel Inc. | 154E | Sherbrooke | — |
| 2020-09-08 | 873-437 | not yet reported which blocks → | Iristel Inc. | 154E | Magog | — |
| 2020-09-04 | 873-363 | not yet reported which blocks → | Iristel Inc. | 154E | Deauville | — |
| 2020-02-04 | 873-772 | not yet reported which blocks → | Iristel Inc. | 154E | Rouyn-Noranda | — |
| 2019-10-18 | 873-808 | not yet reported which blocks → | Iristel Inc. | 154E | Trois-Rivieres | — |
| 2019-08-01 | 873-807 | not yet reported which blocks → | Iristel Inc. | 154E | Trois-Rivieres | — |
| 2019-06-26 | 873-742 | not yet reported which blocks → | Iristel Inc. | 154E | Buckingham | — |
| 2019-05-03 | 873-728 | not yet reported which blocks → | Iristel Inc. | 154E | Amos | — |
| 2018-07-05 | 873-741 | not yet reported which blocks → | Iristel Inc. | 154E | Plessisville | — |
| 2018-06-22 | 873-740 | not yet reported which blocks → | Iristel Inc. | 154E | Buckingham | — |
| 2018-04-11 | 873-806 | not yet reported which blocks → | Iristel Inc. | 154E | Ste-Agathe | — |
| 2018-03-12 | 873-301 | not yet reported which blocks → | Iristel Inc. | 154E | Ville-Marie | — |
| 2017-11-21 | 873-729 | not yet reported which blocks → | Iristel Inc. | 154E | Amos | — |
| 2017-11-01 | 873-739 | not yet reported which blocks → | Iristel Inc. | 154E | Buckingham | — |
| 2017-08-24 | 873-731 | not yet reported which blocks → | Iristel Inc. | 154E | Deauville | — |
| 2017-07-13 | 873-805 | not yet reported which blocks → | Iristel Inc. | 154E | Trois-Rivieres | — |
| 2017-06-02 | 873-499 | not yet reported which blocks → | Iristel Inc. | 154E | Sherbrooke | — |
| 2017-06-01 | 873-733 | not yet reported which blocks → | Iristel Inc. | 154E | Maniwaki | — |
| 2017-05-23 | 873-701 | not yet reported which blocks → | Iristel Inc. | 154E | Drummondville | — |
| 2017-04-06 | 873-514 | not yet reported which blocks → | Iristel Inc. | 154E | Aupaluk | — |
| 2017-04-03 | 873-506 | not yet reported which blocks → | Iristel Inc. | 154E | Akulivik | — |
| 2017-04-03 | 873-507 | not yet reported which blocks → | Iristel Inc. | 154E | Kangirsuk | — |
| 2017-04-03 | 873-508 | not yet reported which blocks → | Iristel Inc. | 154E | Umiujaq | — |
| 2017-04-03 | 873-509 | not yet reported which blocks → | Iristel Inc. | 154E | Kuujjuaraapik | — |
| 2017-04-03 | 873-510 | not yet reported which blocks → | Iristel Inc. | 154E | Quaqtaq | — |
| 2017-04-03 | 873-512 | not yet reported which blocks → | Iristel Inc. | 154E | Ivujivik | — |
| 2017-04-03 | 873-513 | not yet reported which blocks → | Iristel Inc. | 154E | Tasiujaq | — |
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.