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 289
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 |
|---|---|---|---|---|---|---|
| 2015-08-19 | 289-658 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Nobleton | — |
| 2015-08-19 | 289-853 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Stouffville | — |
| 2015-08-19 | 289-854 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Oak Ridges | — |
| 2015-08-19 | 289-872 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Markham | — |
| 2015-08-19 | 289-873 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Kleinburg | — |
| 2015-08-19 | 289-874 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | King City | — |
| 2015-08-19 | 289-875 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Bolton | — |
| 2015-08-19 | 289-984 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Aurora | — |
| 2015-08-18 | 289-871 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Sutton | — |
| 2015-05-05 | 289-824 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Caledon East | — |
| 2013-10-15 | 289-458 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Campbellville | — |
| 2013-06-11 | 289-538 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Richmond Hill | — |
| 2013-01-17 | 289-568 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Binbrook | — |
| 2012-08-28 | 289-415 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Beeton | — |
| 2011-04-01 | 289-412 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Milton | — |
| 2011-04-01 | 289-413 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Niagara-On-The-Lake | — |
| 2011-04-01 | 289-414 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Welland | — |
| 2011-02-10 | 289-250 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Fort Erie | — |
| 2011-01-13 | 289-399 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Richmond Hill | — |
| 2010-08-13 | 289-358 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Hamilton | — |
| 2010-08-13 | 289-359 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Malton | — |
| 2010-08-13 | 289-361 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Niagara Falls | — |
| 2010-08-13 | 289-363 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Oakville | — |
| 2010-08-13 | 289-364 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | St. Catharines-Thorold | — |
| 2010-08-13 | 289-375 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Streetsville | — |
| 2010-08-13 | 289-390 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Thornhill | — |
| 2010-08-13 | 289-392 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Unionville | — |
| 2010-08-13 | 289-393 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Woodbridge | — |
| 2010-08-11 | 289-417 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Ajax-Pickering | — |
| 2010-08-11 | 289-418 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Brampton | — |
| 2010-08-11 | 289-419 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Burlington | — |
| 2010-08-11 | 289-420 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Clarkson | — |
| 2010-08-11 | 289-421 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Cooksville | — |
| 2010-08-10 | 289-254 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Oshawa | — |
| 2010-05-13 | 289-279 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Newmarket | — |
| 2010-03-18 | 289-357 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Maple | — |
| 2010-03-12 | 289-986 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | South Pickering | — |
| 2010-03-12 | 289-989 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Whitby | — |
| 2009-10-09 | 289-246 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Hamilton | — |
| 2009-09-25 | 289-245 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Burlington | — |
| 2009-09-01 | 289-255 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Ajax-Pickering | — |
| 2009-09-01 | 289-256 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Woodbridge | — |
| 2009-06-22 | 289-269 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Richmond Hill | — |
| 2009-04-28 | 289-982 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Thornhill | — |
| 2009-03-20 | 289-248 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Niagara Falls | — |
| 2009-03-02 | 289-266 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Burlington | — |
| 2009-03-02 | 289-267 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | St. Catharines-Thorold | — |
| 2009-01-29 | 289-678 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Hamilton | — |
| 2009-01-29 | 289-789 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Unionville | — |
| 2008-12-10 | 289-826 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Clarkson | — |
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.