NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
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
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Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2011-08-15 | 289-759 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Mount Hope | — |
| 2011-08-15 | 289-760 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Stoney Creek | — |
| 2011-07-27 | 289-301 | not yet reported which blocks → | Iristel Inc. | 154E | Markham | — |
| 2011-07-25 | 289-780 | not yet reported which blocks → | Iristel Inc. | 154E | Hamilton | — |
| 2011-07-14 | 289-975 | not yet reported which blocks → | Distributel | 082E | Hamilton | — |
| 2011-07-08 | 289-201 | not yet reported which blocks → | Iristel Inc. | 154E | Brampton | — |
| 2011-07-06 | 289-667 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | 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 | — |
| 2011-05-16 | 289-781 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | St. Catharines-Thorold | — |
| 2011-05-16 | 289-782 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | St. Catharines-Thorold | — |
| 2011-05-16 | 289-783 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | St. Catharines-Thorold | — |
| 2011-05-13 | 289-972 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Dunnville | — |
| 2011-05-13 | 289-973 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Dunnville | — |
| 2011-05-04 | 289-701 | not yet reported which blocks → | Distributel | 082E | Oshawa | — |
| 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 | — |
| 2011-03-25 | 289-773 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Hamilton | — |
| 2011-03-25 | 289-774 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Hamilton | — |
| 2011-03-25 | 289-775 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Hamilton | — |
| 2011-03-25 | 289-776 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Hamilton | — |
| 2011-03-23 | 289-485 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Port Perry | — |
| 2011-03-23 | 289-674 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Hamilton | — |
| 2011-03-23 | 289-755 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Hamilton | — |
| 2011-03-22 | 289-771 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Cobourg | — |
| 2011-03-22 | 289-772 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Oakville | — |
| 2011-03-18 | 289-979 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Oshawa | — |
| 2011-03-01 | 289-423 | not yet reported which blocks → | TELUS Mobility | 8303 | Ajax-Pickering | — |
| 2011-02-18 | 289-788 | not yet reported which blocks → | Videotron Ltd. | 383F | Hamilton | — |
| 2011-02-10 | 289-250 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Fort Erie | — |
| 2011-02-07 | 289-442 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| 2011-02-07 | 289-930 | not yet reported which blocks → | TELUS Mobility | 8303 | Milton | — |
| 2011-02-07 | 289-935 | not yet reported which blocks → | TELUS Mobility | 8303 | Georgetown | — |
| 2011-01-13 | 289-399 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Richmond Hill | — |
| 2010-12-22 | 289-909 | not yet reported which blocks → | Videotron Ltd. | 383F | Newmarket | — |
| 2010-12-22 | 289-994 | not yet reported which blocks → | Videotron Ltd. | 383F | Hamilton | — |
| 2010-12-21 | 289-354 | not yet reported which blocks → | TELUS Mobility | 8303 | Port Perry | — |
| 2010-11-30 | 289-716 | not yet reported which blocks → | TELUS Mobility | 8303 | Newmarket | — |
| 2010-11-24 | 289-690 | not yet reported which blocks → | TELUS Mobility | 8303 | St. Catharines-Thorold | — |
| 2010-11-24 | 289-696 | not yet reported which blocks → | TELUS Mobility | 8303 | St. Catharines-Thorold | — |
| 2010-11-24 | 289-697 | not yet reported which blocks → | TELUS Mobility | 8303 | St. Catharines-Thorold | — |
| 2010-11-15 | 289-682 | not yet reported which blocks → | TELUS Mobility | 8303 | Hamilton | — |
| 2010-11-15 | 289-683 | not yet reported which blocks → | TELUS Mobility | 8303 | Hamilton | — |
| 2010-10-15 | 289-684 | not yet reported which blocks → | TELUS Mobility | 8303 | Hamilton | — |
| 2010-10-15 | 289-685 | not yet reported which blocks → | TELUS Mobility | 8303 | Oshawa | — |
| 2010-10-08 | 289-382 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Hamilton | — |
| 2010-10-08 | 289-968 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | St. Catharines-Thorold | — |
| 2010-10-05 | 289-219 | not yet reported which blocks → | Bell Mobility | 6574 | St. Catharines-Thorold | — |
| 2010-10-05 | 289-387 | not yet reported which blocks → | Bell Mobility | 6574 | Ajax-Pickering | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.