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 |
|---|---|---|---|---|---|---|
| 2022-09-14 | 581-467 | not yet reported which blocks → | Bell Mobility | 6574 | Quebec | — |
| 2022-06-13 | 581-459 | not yet reported which blocks → | Bell Mobility | 6574 | Quebec | — |
| 2022-05-05 | 581-894 | not yet reported which blocks → | Bell Mobility | 6574 | Quebec | — |
| 2022-04-28 | 581-739 | not yet reported which blocks → | Bell Mobility | 6574 | Quebec | — |
| 2021-06-04 | 581-738 | not yet reported which blocks → | Bell Mobility | 6574 | Quebec | — |
| 2021-04-23 | 581-737 | not yet reported which blocks → | Bell Mobility | 6574 | Quebec | — |
| 2021-04-22 | 581-736 | not yet reported which blocks → | Bell Mobility | 6574 | Quebec | — |
| 2021-04-21 | 581-735 | not yet reported which blocks → | Bell Mobility | 6574 | Quebec | — |
| 2021-02-25 | 581-446 | not yet reported which blocks → | Bell Mobility | 6574 | Quebec | — |
| 2020-12-18 | 581-912 | not yet reported which blocks → | Bell Mobility | 6574 | Quebec | — |
| 2020-02-13 | 581-466 | not yet reported which blocks → | Bell Mobility | 6574 | Riviere-du-Loup | — |
| 2019-12-03 | 581-443 | not yet reported which blocks → | Bell Mobility | 6574 | Quebec | — |
| 2019-07-15 | 581-761 | not yet reported which blocks → | Bell Mobility | 6574 | Saint-Georges-de-Beauce | — |
| 2018-10-11 | 581-398 | not yet reported which blocks → | Bell Mobility | 6574 | Quebec | — |
| 2018-02-01 | 581-453 | not yet reported which blocks → | Bell Mobility | 6574 | Havre-Aubert | — |
| 2017-11-06 | 581-661 | not yet reported which blocks → | Bell Mobility | 6574 | Chandler | — |
| 2017-10-25 | 581-397 | not yet reported which blocks → | Bell Mobility | 6574 | Quebec | — |
| 2016-01-28 | 581-447 | not yet reported which blocks → | Bell Mobility | 6574 | Chicoutimi | — |
| 2015-07-13 | 581-349 | not yet reported which blocks → | Bell Mobility | 6574 | Quebec | — |
| 2015-06-09 | 581-399 | not yet reported which blocks → | Bell Mobility | 6574 | Thetford Mines | — |
| 2015-05-22 | 581-464 | not yet reported which blocks → | Bell Mobility | 6574 | Chibougamau | — |
| 2014-12-23 | 581-525 | not yet reported which blocks → | Bell Mobility | 6574 | Rimouski | — |
| 2014-06-03 | 581-313 | not yet reported which blocks → | Bell Mobility | 6574 | Quebec | — |
| 2013-04-19 | 581-372 | not yet reported which blocks → | Bell Mobility | 6574 | Saint-Georges-de-Beauce | — |
| 2013-04-18 | 581-445 | not yet reported which blocks → | Bell Mobility | 6574 | Chibougamau | — |
| 2013-03-05 | 581-305 | not yet reported which blocks → | Bell Mobility | 6574 | Quebec | — |
| 2012-03-22 | 581-309 | not yet reported which blocks → | Bell Mobility | 6574 | Quebec | — |
| 2012-03-22 | 581-337 | not yet reported which blocks → | Bell Mobility | 6574 | Riviere-du-Loup | — |
| 2012-02-09 | 581-444 | not yet reported which blocks → | Bell Mobility | 6574 | Fermont | — |
| 2011-02-02 | 581-308 | not yet reported which blocks → | Bell Mobility | 6574 | Quebec | — |
| 2010-06-08 | 581-306 | not yet reported which blocks → | Bell Mobility | 6574 | Chicoutimi | — |
| 2010-06-08 | 581-307 | not yet reported which blocks → | Bell Mobility | 6574 | Quebec | — |
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.