NumberResearchRecent prefix assignments
1 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, last 30 days — NPA 579
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2026-08-25 | 579-955 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Actonvale | — |
| 2026-02-05 | 579-581 | not yet reported which blocks → | TELUS Quebec | 2243 | Sutton | — |
| 2026-02-05 | 579-582 | not yet reported which blocks → | TELUS Quebec | 2243 | Ormstown | — |
| 2026-02-05 | 579-583 | not yet reported which blocks → | TELUS Quebec | 2243 | St-Andre Est | — |
| 2025-11-11 | 579-512 | not yet reported which blocks → | TELUS Quebec | 2243 | St-Blaise | — |
| 2025-11-11 | 579-558 | not yet reported which blocks → | TELUS Quebec | 2243 | Franklin Centre | — |
| 2025-10-22 | 579-557 | not yet reported which blocks → | TELUS Quebec | 2243 | St-Chrysostome | — |
| 2025-05-15 | 579-549 | not yet reported which blocks → | TELUS Quebec | 2243 | St-Gabriel-de-Brandon | — |
| 2025-05-15 | 579-553 | not yet reported which blocks → | TELUS Quebec | 2243 | St-Jean-de-Matha | — |
| 2025-05-15 | 579-554 | not yet reported which blocks → | TELUS Quebec | 2243 | Frelighsburg | — |
| 2025-05-12 | 579-781 | not yet reported which blocks → | IXICA Communications Inc. | 812H | St-Marc | — |
| 2025-05-12 | 579-782 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Varennes | — |
| 2025-05-12 | 579-783 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Vercheres | — |
| 2025-05-09 | 579-771 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Beloeil | — |
| 2025-05-09 | 579-772 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Marieville | — |
| 2025-05-09 | 579-773 | not yet reported which blocks → | IXICA Communications Inc. | 812H | St-Bruno | — |
| 2025-05-09 | 579-774 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Ste-Julie-de-Vercheres | — |
| 2025-04-30 | 579-576 | not yet reported which blocks → | Fibernetics Corporation | 464D | Longueuil | — |
| 2025-03-31 | 579-552 | not yet reported which blocks → | TELUS Quebec | 2243 | Venise-en-Quebec | — |
| 2025-01-14 | 579-508 | not yet reported which blocks → | Cooptel | 818D | Lavaltrie | — |
| 2024-12-16 | 579-503 | not yet reported which blocks → | Iristel Inc. | 154E | Joliette | — |
| 2024-12-13 | 579-689 | not yet reported which blocks → | Iristel Inc. | 154E | Chambly | — |
| 2024-12-13 | 579-944 | not yet reported which blocks → | Iristel Inc. | 154E | Granby | — |
| 2024-12-09 | 579-586 | not yet reported which blocks → | Iristel Inc. | 154E | St-Eustache | — |
| 2024-12-03 | 579-568 | not yet reported which blocks → | Iristel Inc. | 154E | Laval-Est | — |
| 2024-12-03 | 579-702 | not yet reported which blocks → | Iristel Inc. | 154E | Pont-Viau | — |
| 2024-08-09 | 579-527 | not yet reported which blocks → | Fibernetics Corporation | 464D | Ste-Therese | — |
| 2024-06-24 | 579-972 | not yet reported which blocks → | Iristel Inc. | 154E | Lanoraie | — |
| 2024-05-27 | 579-965 | not yet reported which blocks → | Iristel Inc. | 154E | St-Sauveur | — |
| 2024-05-16 | 579-984 | not yet reported which blocks → | Iristel Inc. | 154E | L'Epiphanie-l'Assomption | — |
| 2024-05-15 | 579-778 | not yet reported which blocks → | Iristel Inc. | 154E | Lachute | — |
| 2024-03-01 | 579-975 | not yet reported which blocks → | Iristel Inc. | 154E | Laval-Ouest | — |
| 2024-02-29 | 579-974 | not yet reported which blocks → | Iristel Inc. | 154E | Laval-Ouest | — |
| 2024-02-06 | 579-680 | not yet reported which blocks → | Fibernetics Corporation | 464D | Chomedey | — |
| 2024-02-06 | 579-681 | not yet reported which blocks → | Fibernetics Corporation | 464D | Pont-Viau | — |
| 2024-02-06 | 579-682 | not yet reported which blocks → | Fibernetics Corporation | 464D | Ste-Rose | — |
| 2024-02-06 | 579-683 | not yet reported which blocks → | Fibernetics Corporation | 464D | St-Vincent-de-Paul | — |
| 2024-01-23 | 579-575 | not yet reported which blocks → | TELUS Quebec | 2243 | Ste-Martine | — |
| 2023-07-20 | 579-257 | not yet reported which blocks → | Bell Canada | 984C | St-Ours | — |
| 2023-07-20 | 579-398 | not yet reported which blocks → | Cooptel | 818D | Lanoraie | — |
| 2023-07-20 | 579-482 | not yet reported which blocks → | Cooptel | 818D | St-Barthelemy | — |
| 2023-07-07 | 579-574 | not yet reported which blocks → | Cooptel | 818D | Ste-Marguerite | — |
| 2023-06-28 | 579-932 | not yet reported which blocks → | Fibernetics Corporation | 464D | Chateauguay | — |
| 2023-06-19 | 579-393 | not yet reported which blocks → | Cooptel | 818D | Berthierville | — |
| 2023-05-29 | 579-715 | not yet reported which blocks → | Fibernetics Corporation | 464D | Boucherville | — |
| 2023-05-29 | 579-716 | not yet reported which blocks → | Fibernetics Corporation | 464D | Chambly | — |
| 2023-05-29 | 579-717 | not yet reported which blocks → | Fibernetics Corporation | 464D | Longueuil | — |
| 2023-05-24 | 579-982 | not yet reported which blocks → | Fibernetics Corporation | 464D | Sorel | — |
| 2023-05-23 | 579-981 | not yet reported which blocks → | Fibernetics Corporation | 464D | St-Eustache | — |
| 2023-04-20 | 579-504 | not yet reported which blocks → | Fibernetics Corporation | 464D | St-Hyacinthe | — |
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.