NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/21/2026
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 |
|---|---|---|---|---|---|---|
| 2008-11-05 | 289-835 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Oakville | — |
| 2008-11-05 | 289-998 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Streetsville | — |
| 2008-08-29 | 289-265 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Colborne | — |
| 2008-07-15 | 289-247 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Malton | — |
| 2008-07-15 | 289-748 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Brampton | — |
| 2008-07-15 | 289-777 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Cooksville | — |
| 2008-06-12 | 289-362 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | St. Catharines-Thorold | — |
| 2008-06-03 | 289-389 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Hamilton | — |
| 2008-03-31 | 289-837 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Oakville | — |
| 2008-02-26 | 289-679 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Freelton | — |
| 2007-12-20 | 289-376 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Port Robinson | — |
| 2007-12-20 | 289-397 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Stevensville | — |
| 2007-12-20 | 289-567 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Vineland | — |
| 2007-12-20 | 289-656 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Winona | — |
| 2007-12-20 | 289-676 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Oshawa | — |
| 2007-12-20 | 289-956 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | West Lincoln | — |
| 2007-08-30 | 289-337 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Burlington | — |
| 2007-07-18 | 289-422 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Ajax-Pickering | — |
| 2007-03-09 | 289-398 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | St. Catharines-Thorold | — |
| 2007-01-23 | 289-396 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Hamilton | — |
| 2007-01-09 | 289-391 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Hamilton | — |
| 2006-10-16 | 289-252 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Cobourg | — |
| 2006-08-25 | 289-268 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Woodbridge | — |
| 2006-08-25 | 289-825 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Clarkson | — |
| 2006-06-20 | 289-881 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Oakville | — |
| 2006-06-19 | 289-636 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Burlington | — |
| 2006-01-20 | 289-320 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Fort Erie | — |
| 2006-01-20 | 289-566 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Beamsville | — |
| 2006-01-20 | 289-836 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Port Colborne | — |
| 2006-01-20 | 289-868 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Niagara-On-The-Lake | — |
| 2006-01-20 | 289-876 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Ridgeway | — |
| 2006-01-20 | 289-897 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Pelham | — |
| 2005-12-22 | 289-235 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Grimsby | — |
| 2005-12-16 | 289-238 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Dundas | — |
| 2005-12-16 | 289-239 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Ancaster | — |
| 2005-12-16 | 289-296 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Niagara Falls | — |
| 2005-12-16 | 289-820 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Welland | — |
| 2005-12-13 | 289-878 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Milton | — |
| 2005-12-06 | 289-895 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Waterdown | — |
| 2005-12-05 | 289-891 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Georgetown | — |
| 2002-08-20 | 289-360 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Cooksville | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.