NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
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 |
|---|---|---|---|---|---|---|
| 2011-11-21 | 450-693 | not yet reported which blocks → | Distributel | 083E | Longueuil | — |
| 2011-06-07 | 450-453 | not yet reported which blocks → | Distributel | 083E | Pont-Viau | — |
| 2010-11-01 | 450-859 | not yet reported which blocks → | Distributel | 083E | Valleyfield | — |
| 2010-11-01 | 450-897 | not yet reported which blocks → | Distributel | 083E | Vaudreuil | — |
| 2010-11-01 | 450-903 | not yet reported which blocks → | Distributel | 083E | Pont-Viau | — |
| 2010-11-01 | 450-910 | not yet reported which blocks → | Distributel | 083E | Chomedey | — |
| 2010-07-15 | 450-864 | not yet reported which blocks → | Distributel | 083E | Beloeil | — |
| 2010-07-15 | 450-868 | not yet reported which blocks → | Distributel | 083E | Boucherville | — |
| 2010-07-15 | 450-874 | not yet reported which blocks → | Distributel | 083E | Laprairie | — |
| 2010-03-12 | 450-875 | not yet reported which blocks → | Distributel | 083E | Joliette | — |
| 2009-11-17 | 450-876 | not yet reported which blocks → | Distributel | 083E | Longueuil | — |
| 2009-10-16 | 450-878 | not yet reported which blocks → | Distributel | 083E | St-Lambert | — |
| 2009-06-18 | 450-877 | not yet reported which blocks → | Distributel | 083E | Granby | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.