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 |
|---|---|---|---|---|---|---|
| 2009-12-11 | 450-858 | not yet reported which blocks → | Bell Mobility | 6574 | St-Jerome | — |
| 2007-09-12 | 450-493 | not yet reported which blocks → | Bell Mobility | 6574 | Ste-Madeleine | — |
| 2005-07-26 | 450-525 | not yet reported which blocks → | Bell Mobility | 6574 | Granby | — |
| 2005-07-22 | 450-917 | not yet reported which blocks → | Bell Mobility | 6574 | Joliette | — |
| 2005-06-29 | 450-524 | not yet reported which blocks → | Bell Mobility | 6574 | St-Jean | — |
| 2005-03-18 | 450-495 | not yet reported which blocks → | Bell Mobility | 6574 | Lachute | — |
| 2005-02-21 | 450-275 | not yet reported which blocks → | Bell Mobility | 6574 | St-Jerome | — |
| 2005-02-18 | 450-288 | not yet reported which blocks → | Bell Mobility | 6574 | Valleyfield | — |
| 2004-10-21 | 450-494 | not yet reported which blocks → | Bell Mobility | 6574 | Sorel | — |
| 2003-03-06 | 450-523 | not yet reported which blocks → | Bell Mobility | 6574 | St-Jean | — |
| 2003-02-11 | 450-522 | not yet reported which blocks → | Bell Mobility | 6574 | Granby | — |
| 2002-05-07 | 450-712 | not yet reported which blocks → | Bell Mobility | 6574 | St-Jerome | — |
| 2002-03-14 | 450-916 | not yet reported which blocks → | Bell Mobility | 6574 | Joliette | — |
| 2001-12-21 | 450-230 | not yet reported which blocks → | Bell Mobility | 6574 | St-Hyacinthe | — |
| 2001-02-01 | 450-521 | not yet reported which blocks → | Bell Mobility | 6574 | Granby | — |
| 2001-01-16 | 450-888 | not yet reported which blocks → | Bell Mobility | 6574 | St-Hyacinthe | — |
| — | 450-531 | not yet reported which blocks → | Bell Mobility | 6574 | Granby | — |
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.