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.
Most active assignees, all time — NPA 905
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2008-10-21 | 905-236 | not yet reported which blocks → | Bell Mobility | 6574 | Streetsville | — |
| 2005-09-15 | 905-410 | not yet reported which blocks → | Bell Mobility | 6574 | Oshawa | — |
| 2005-08-25 | 905-749 | not yet reported which blocks → | Bell Mobility | 6574 | Milton | — |
| 2005-08-15 | 905-490 | not yet reported which blocks → | Bell Mobility | 6574 | Claremont | — |
| 2005-07-26 | 905-758 | not yet reported which blocks → | Bell Mobility | 6574 | Aurora | — |
| 2005-07-22 | 905-912 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| 2005-02-15 | 905-414 | not yet reported which blocks → | Bell Mobility | 6574 | Welland | — |
| 2004-11-10 | 905-484 | not yet reported which blocks → | Bell Mobility | 6574 | Oakville | — |
| 2004-11-10 | 905-914 | not yet reported which blocks → | Bell Mobility | 6574 | Oshawa | — |
| 2004-11-10 | 905-995 | not yet reported which blocks → | Bell Mobility | 6574 | Ajax-Pickering | — |
| 2004-10-25 | 905-964 | not yet reported which blocks → | Bell Mobility | 6574 | St. Catharines-Thorold | — |
| 2004-10-14 | 905-941 | not yet reported which blocks → | Bell Mobility | 6574 | St. Catharines-Thorold | — |
| 2004-10-13 | 905-865 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| 2003-11-17 | 905-870 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| 2003-07-25 | 905-244 | not yet reported which blocks → | Bell Mobility | 6574 | Oshawa | — |
| 2003-07-25 | 905-483 | not yet reported which blocks → | Bell Mobility | 6574 | Oakville | — |
| 2003-05-09 | 905-391 | not yet reported which blocks → | Bell Mobility | 6574 | Ajax-Pickering | — |
| 2003-03-07 | 905-396 | not yet reported which blocks → | Bell Mobility | 6574 | Cobourg | — |
| 2002-10-09 | 905-931 | not yet reported which blocks → | Bell Mobility | 6574 | St. Catharines-Thorold | — |
| 2002-10-03 | 905-869 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| 2002-10-03 | 905-872 | not yet reported which blocks → | Bell Mobility | 6574 | Brampton | — |
| 2002-05-07 | 905-932 | not yet reported which blocks → | Bell Mobility | 6574 | St. Catharines-Thorold | — |
| 2002-01-22 | 905-960 | not yet reported which blocks → | Bell Mobility | 6574 | Newmarket | — |
| 2001-12-21 | 905-243 | not yet reported which blocks → | Bell Mobility | 6574 | Oshawa | — |
| 2001-12-21 | 905-379 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| 2001-12-21 | 905-965 | not yet reported which blocks → | Bell Mobility | 6574 | Brampton | — |
| 2000-10-24 | 905-213 | not yet reported which blocks → | Bell Mobility | 6574 | Oshawa | — |
| 2000-10-10 | 905-536 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| 2000-05-04 | 905-933 | not yet reported which blocks → | Bell Mobility | 6574 | St. Catharines-Thorold | — |
| 1999-12-22 | 905-464 | not yet reported which blocks → | Bell Mobility | 6574 | Oakville | — |
| 1999-10-21 | 905-975 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| — | 905-242 | not yet reported which blocks → | Bell Mobility | 6574 | Oshawa | — |
| — | 905-301 | not yet reported which blocks → | Bell Mobility | 6574 | Streetsville | — |
| — | 905-302 | not yet reported which blocks → | Bell Mobility | 6574 | Streetsville | — |
| — | 905-327 | not yet reported which blocks → | Bell Mobility | 6574 | St. Catharines-Thorold | — |
| — | 905-328 | not yet reported which blocks → | Bell Mobility | 6574 | St. Catharines-Thorold | — |
| — | 905-376 | not yet reported which blocks → | Bell Mobility | 6574 | Cobourg | — |
| — | 905-439 | not yet reported which blocks → | Bell Mobility | 6574 | Oshawa | — |
| — | 905-466 | not yet reported which blocks → | Bell Mobility | 6574 | Oakville | — |
| — | 905-467 | not yet reported which blocks → | Bell Mobility | 6574 | Oakville | — |
| — | 905-516 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| — | 905-517 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| — | 905-601 | not yet reported which blocks → | Bell Mobility | 6574 | Streetsville | — |
| — | 905-609 | not yet reported which blocks → | Bell Mobility | 6574 | Streetsville | — |
| — | 905-691 | not yet reported which blocks → | Bell Mobility | 6574 | Milton | — |
| — | 905-706 | not yet reported which blocks → | Bell Mobility | 6574 | Ajax-Pickering | — |
| — | 905-767 | not yet reported which blocks → | Bell Mobility | 6574 | Ajax-Pickering | — |
| — | 905-973 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| — | 905-979 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
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.