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 |
|---|---|---|---|---|---|---|
| 2020-10-15 | 226-724 | not yet reported which blocks → | Bell Mobility | 6574 | Windsor | — |
| 2018-10-15 | 226-753 | not yet reported which blocks → | Bell Mobility | 6574 | Kitchener-Waterloo | — |
| 2016-11-22 | 226-391 | not yet reported which blocks → | Bell Mobility | 6574 | Tobermory | — |
| 2016-03-09 | 226-386 | not yet reported which blocks → | Bell Mobility | 6574 | London | — |
| 2016-01-28 | 226-542 | not yet reported which blocks → | Bell Mobility | 6574 | Chatham | — |
| 2016-01-28 | 226-543 | not yet reported which blocks → | Bell Mobility | 6574 | Goderich | — |
| 2015-12-30 | 226-332 | not yet reported which blocks → | Bell Mobility | 6574 | Guelph | — |
| 2015-11-24 | 226-759 | not yet reported which blocks → | Bell Mobility | 6574 | Windsor | — |
| 2015-09-02 | 226-261 | not yet reported which blocks → | Bell Mobility | 6574 | Stratford | — |
| 2015-04-29 | 226-752 | not yet reported which blocks → | Bell Mobility | 6574 | Kitchener-Waterloo | — |
| 2014-06-03 | 226-385 | not yet reported which blocks → | Bell Mobility | 6574 | London | — |
| 2014-06-03 | 226-751 | not yet reported which blocks → | Bell Mobility | 6574 | Kitchener-Waterloo | — |
| 2014-06-03 | 226-758 | not yet reported which blocks → | Bell Mobility | 6574 | Windsor | — |
| 2013-11-29 | 226-331 | not yet reported which blocks → | Bell Mobility | 6574 | Forest | — |
| 2013-11-01 | 226-380 | not yet reported which blocks → | Bell Mobility | 6574 | London | — |
| 2013-03-08 | 226-757 | not yet reported which blocks → | Bell Mobility | 6574 | Windsor | — |
| 2013-03-05 | 226-376 | not yet reported which blocks → | Bell Mobility | 6574 | London | — |
| 2013-02-12 | 226-545 | not yet reported which blocks → | Bell Mobility | 6574 | Aylmer | — |
| 2012-08-14 | 226-379 | not yet reported which blocks → | Bell Mobility | 6574 | Owen Sound | — |
| 2012-08-08 | 226-402 | not yet reported which blocks → | Bell Mobility | 6574 | Sarnia | — |
| 2011-10-18 | 226-378 | not yet reported which blocks → | Bell Mobility | 6574 | London | — |
| 2011-02-02 | 226-787 | not yet reported which blocks → | Bell Mobility | 6574 | Windsor | — |
| 2011-02-02 | 226-821 | not yet reported which blocks → | Bell Mobility | 6574 | Guelph | — |
| 2010-09-09 | 226-387 | not yet reported which blocks → | Bell Mobility | 6574 | Brantford | — |
| 2010-08-06 | 226-750 | not yet reported which blocks → | Bell Mobility | 6574 | Kitchener-Waterloo | — |
| 2010-06-11 | 226-377 | not yet reported which blocks → | Bell Mobility | 6574 | London | — |
| 2010-02-25 | 226-749 | not yet reported which blocks → | Bell Mobility | 6574 | Kitchener-Waterloo | — |
| 2009-12-04 | 226-755 | not yet reported which blocks → | Bell Mobility | 6574 | Hespeler | — |
| 2008-09-19 | 226-374 | not yet reported which blocks → | Bell Mobility | 6574 | London | — |
| 2008-09-19 | 226-748 | not yet reported which blocks → | Bell Mobility | 6574 | Kitchener-Waterloo | — |
| 2008-05-29 | 226-820 | not yet reported which blocks → | Bell Mobility | 6574 | Guelph | — |
| 2007-08-10 | 226-373 | not yet reported which blocks → | Bell Mobility | 6574 | London | — |
| 2007-01-24 | 226-747 | not yet reported which blocks → | Bell Mobility | 6574 | Kitchener-Waterloo | — |
| 2006-11-16 | 226-788 | not yet reported which blocks → | Bell Mobility | 6574 | Windsor | — |
| 2006-09-05 | 226-388 | not yet reported which blocks → | Bell Mobility | 6574 | Brantford | — |
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.