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 |
|---|---|---|---|---|---|---|
| 2015-06-29 | 289-870 | not yet reported which blocks → | Distributel | 082E | Richmond Hill | — |
| 2015-06-01 | 289-714 | not yet reported which blocks → | Distributel | 082E | Burlington | — |
| 2015-05-28 | 289-715 | not yet reported which blocks → | Distributel | 082E | Oakville | — |
| 2015-01-09 | 289-720 | not yet reported which blocks → | Distributel | 082E | Brampton | — |
| 2015-01-09 | 289-721 | not yet reported which blocks → | Distributel | 082E | Malton | — |
| 2015-01-09 | 289-722 | not yet reported which blocks → | Distributel | 082E | Cooksville | — |
| 2015-01-09 | 289-726 | not yet reported which blocks → | Distributel | 082E | Streetsville | — |
| 2015-01-09 | 289-731 | not yet reported which blocks → | Distributel | 082E | Oshawa | — |
| 2015-01-08 | 289-727 | not yet reported which blocks → | Distributel | 082E | Clarkson | — |
| 2015-01-08 | 289-732 | not yet reported which blocks → | Distributel | 082E | Whitby | — |
| 2015-01-08 | 289-733 | not yet reported which blocks → | Distributel | 082E | Ajax-Pickering | — |
| 2015-01-08 | 289-734 | not yet reported which blocks → | Distributel | 082E | South Pickering | — |
| 2014-07-21 | 289-509 | not yet reported which blocks → | Distributel | 082E | Whitby | — |
| 2014-07-09 | 289-540 | not yet reported which blocks → | Distributel | 082E | Streetsville | — |
| 2014-06-27 | 289-510 | not yet reported which blocks → | Distributel | 082E | Thornhill | — |
| 2014-02-11 | 289-496 | not yet reported which blocks → | Distributel | 082E | Richmond Hill | — |
| 2013-12-16 | 289-565 | not yet reported which blocks → | Distributel | 082E | Cooksville | — |
| 2013-10-30 | 289-410 | not yet reported which blocks → | Distributel | 082E | Brampton | — |
| 2013-10-30 | 289-545 | not yet reported which blocks → | Distributel | 082E | Ajax-Pickering | — |
| 2013-10-30 | 289-550 | not yet reported which blocks → | Distributel | 082E | Richmond Hill | — |
| 2013-10-30 | 289-730 | not yet reported which blocks → | Distributel | 082E | Newmarket | — |
| 2013-10-30 | 289-745 | not yet reported which blocks → | Distributel | 082E | Burlington | — |
| 2013-07-23 | 289-539 | not yet reported which blocks → | Distributel | 082E | Ajax-Pickering | — |
| 2013-03-15 | 289-918 | not yet reported which blocks → | Distributel | 082E | Oshawa | — |
| 2013-02-15 | 289-798 | not yet reported which blocks → | Distributel | 082E | Burlington | — |
| 2013-01-17 | 289-459 | not yet reported which blocks → | Distributel | 082E | Thornhill | — |
| 2012-12-27 | 289-529 | not yet reported which blocks → | Distributel | 082E | Oakville | — |
| 2012-05-15 | 289-919 | not yet reported which blocks → | Distributel | 082E | Hamilton | — |
| 2011-10-28 | 289-974 | not yet reported which blocks → | Distributel | 082E | St. Catharines-Thorold | — |
| 2011-08-23 | 289-243 | not yet reported which blocks → | Distributel | 082E | Oakville | — |
| 2011-08-23 | 289-263 | not yet reported which blocks → | Distributel | 082E | Hamilton | — |
| 2011-07-14 | 289-975 | not yet reported which blocks → | Distributel | 082E | Hamilton | — |
| 2011-06-09 | 289-948 | not yet reported which blocks → | Distributel | 082E | Brampton | — |
| 2011-06-09 | 289-949 | not yet reported which blocks → | Distributel | 082E | Hamilton | — |
| 2011-05-04 | 289-701 | not yet reported which blocks → | Distributel | 082E | Oshawa | — |
| 2010-02-26 | 289-348 | not yet reported which blocks → | Distributel | 082E | Burlington | — |
| 2010-02-26 | 289-349 | not yet reported which blocks → | Distributel | 082E | Georgetown | — |
| 2010-02-26 | 289-350 | not yet reported which blocks → | Distributel | 082E | Milton | — |
| 2010-02-26 | 289-351 | not yet reported which blocks → | Distributel | 082E | Oakville | — |
| 2010-02-26 | 289-352 | not yet reported which blocks → | Distributel | 082E | Waterdown | — |
| 2009-10-05 | 289-432 | not yet reported which blocks → | Distributel | 082E | Beamsville | — |
| 2009-10-05 | 289-433 | not yet reported which blocks → | Distributel | 082E | Dunnville | — |
| 2009-10-05 | 289-434 | not yet reported which blocks → | Distributel | 082E | St. Catharines-Thorold | — |
| 2009-07-08 | 289-335 | not yet reported which blocks → | Distributel | 082E | Hamilton | — |
| 2009-07-08 | 289-336 | not yet reported which blocks → | Distributel | 082E | Grimsby | — |
| 2008-12-10 | 289-324 | not yet reported which blocks → | Distributel | 082E | Castlemore | — |
| 2008-12-10 | 289-326 | not yet reported which blocks → | Distributel | 082E | Clarkson | — |
| 2008-12-10 | 289-327 | not yet reported which blocks → | Distributel | 082E | Cooksville | — |
| 2008-12-10 | 289-328 | not yet reported which blocks → | Distributel | 082E | Malton | — |
| 2008-12-10 | 289-329 | not yet reported which blocks → | Distributel | 082E | Port Credit | — |
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.