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 |
|---|---|---|---|---|---|---|
| 2021-10-14 | 579-483 | not yet reported which blocks → | TELUS Mobility | 8303 | Bedford | — |
| 2021-10-13 | 579-484 | not yet reported which blocks → | TELUS Mobility | 8303 | St-Hyacinthe | — |
| 2021-10-12 | 579-985 | not yet reported which blocks → | TELUS Mobility | 8303 | St-Jean | — |
| 2018-09-24 | 579-593 | not yet reported which blocks → | TELUS Mobility | 8303 | Joliette | — |
| 2017-01-12 | 579-594 | not yet reported which blocks → | TELUS Mobility | 8303 | Granby | — |
| 2015-10-07 | 579-492 | not yet reported which blocks → | TELUS Mobility | 8303 | Sorel | — |
| 2015-06-24 | 579-766 | not yet reported which blocks → | TELUS Mobility | 8303 | Joliette | — |
| 2014-12-03 | 579-595 | not yet reported which blocks → | TELUS Mobility | 8303 | Granby | — |
| 2012-09-07 | 579-491 | not yet reported which blocks → | TELUS Mobility | 8303 | Valleyfield | — |
| 2012-03-09 | 579-490 | not yet reported which blocks → | TELUS Mobility | 8303 | Vaudreuil | — |
| 2012-01-24 | 579-489 | not yet reported which blocks → | TELUS Mobility | 8303 | St-Hyacinthe | — |
| 2011-02-28 | 579-888 | not yet reported which blocks → | TELUS Mobility | 8303 | St-Jerome | — |
| 2011-02-11 | 579-765 | not yet reported which blocks → | TELUS Mobility | 8303 | St-Jerome | — |
| 2010-12-21 | 579-488 | not yet reported which blocks → | TELUS Mobility | 8303 | Granby | — |
| 2010-10-29 | 579-764 | not yet reported which blocks → | TELUS Mobility | 8303 | Ste-Therese | — |
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.