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.
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2008-05-29 | 450-899 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Sorel | — |
| 2008-05-07 | 450-949 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Ste-Therese | — |
| 2008-04-18 | 450-927 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | St-Sauveur | — |
| 2006-08-04 | 450-350 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | St-Jean | — |
| 2006-08-04 | 450-369 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Valleyfield | — |
| 2006-08-04 | 450-751 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Joliette | — |
| 2004-09-02 | 450-828 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Chomedey | — |
| 2004-09-02 | 450-860 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Laval-Ouest | — |
| 2004-09-02 | 450-862 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Ste-Rose | — |
| 2004-09-02 | 450-863 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Pont-Viau | — |
| 2004-09-01 | 450-861 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Laval-Est | — |
| 2004-09-01 | 450-869 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | St-Vincent-de-Paul | — |
| 2004-09-01 | 450-891 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Boucherville | — |
| 2004-09-01 | 450-892 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Longueuil | — |
| 2004-09-01 | 450-893 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | St-Bruno | — |
| 2004-09-01 | 450-896 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | St-Lambert | — |
| 2001-05-28 | 450-696 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Pont-Viau | — |
| 2001-03-12 | 450-988 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Chomedey | — |
| 2001-03-08 | 450-330 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Granby | — |
| 2000-08-23 | 450-694 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | St-Jerome | — |
| — | 450-209 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | St-Hyacinthe | — |
| — | 450-675 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | St-Jerome | — |
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.