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
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2013-01-23 | 289-443 | not yet reported which blocks → | Bell Canada | 8051 | Ancaster | — |
| 2013-01-17 | 289-459 | not yet reported which blocks → | Distributel | 082E | Thornhill | — |
| 2013-01-17 | 289-568 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Binbrook | — |
| 2013-01-07 | 289-408 | not yet reported which blocks → | Fibernetics Corporation | 464D | Hamilton | — |
| 2013-01-07 | 289-859 | not yet reported which blocks → | Fibernetics Corporation | 464D | Markham | — |
| 2012-12-27 | 289-529 | not yet reported which blocks → | Distributel | 082E | Oakville | — |
| 2012-12-24 | 289-409 | not yet reported which blocks → | Fibernetics Corporation | 464D | Milton | — |
| 2012-12-21 | 289-384 | not yet reported which blocks → | Fibernetics Corporation | 464D | Malton | — |
| 2012-12-21 | 289-386 | not yet reported which blocks → | Bell Canada | 8051 | Oakville | — |
| 2012-10-11 | 289-834 | not yet reported which blocks → | Bell Mobility | 6574 | Oakville | — |
| 2012-08-28 | 289-415 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Beeton | — |
| 2012-08-28 | 289-860 | not yet reported which blocks → | Comwave Networks | 160G | Hamilton | — |
| 2012-08-02 | 289-725 | not yet reported which blocks → | Bell Canada | 8051 | Oakville | — |
| 2012-07-17 | 289-965 | not yet reported which blocks → | Fibernetics Corporation | 464D | Stoney Creek | — |
| 2012-06-26 | 289-830 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Oshawa | — |
| 2012-06-20 | 289-952 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Oakville | — |
| 2012-06-20 | 289-962 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Burlington | — |
| 2012-06-20 | 289-980 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Ajax-Pickering | — |
| 2012-06-19 | 289-451 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Markham | — |
| 2012-06-19 | 289-452 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Richmond Hill | — |
| 2012-06-19 | 289-453 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Newmarket | — |
| 2012-06-08 | 289-832 | not yet reported which blocks → | Primus Telecommunications Canada Inc. | 201A | Maple | — |
| 2012-06-08 | 289-865 | not yet reported which blocks → | Primus Telecommunications Canada Inc. | 201A | Malton | — |
| 2012-05-31 | 289-864 | not yet reported which blocks → | Primus Telecommunications Canada Inc. | 201A | Brampton | — |
| 2012-05-25 | 289-995 | not yet reported which blocks → | TELUS Mobility | 8303 | Aurora | — |
| 2012-05-23 | 289-505 | not yet reported which blocks → | Fibernetics Corporation | 464D | Brampton | — |
| 2012-05-18 | 289-608 | not yet reported which blocks → | Fibernetics Corporation | 464D | Ajax-Pickering | — |
| 2012-05-15 | 289-919 | not yet reported which blocks → | Distributel | 082E | Hamilton | — |
| 2012-05-15 | 289-931 | not yet reported which blocks → | TELUS Mobility | 8303 | St. Catharines-Thorold | — |
| 2012-05-15 | 289-996 | not yet reported which blocks → | TELUS Mobility | 8303 | Oshawa | — |
| 2012-05-02 | 289-307 | not yet reported which blocks → | Iristel Inc. | 154E | Markham | — |
| 2012-05-02 | 289-512 | not yet reported which blocks → | Iristel Inc. | 154E | Oshawa | — |
| 2012-05-02 | 289-817 | not yet reported which blocks → | Iristel Inc. | 154E | Oakville | — |
| 2012-04-27 | 289-768 | not yet reported which blocks → | Iristel Inc. | 154E | Hamilton | — |
| 2012-04-27 | 289-769 | not yet reported which blocks → | Iristel Inc. | 154E | Hamilton | — |
| 2012-04-27 | 289-901 | not yet reported which blocks → | Iristel Inc. | 154E | Brampton | — |
| 2012-04-27 | 289-902 | not yet reported which blocks → | Iristel Inc. | 154E | Ancaster | — |
| 2012-04-27 | 289-906 | not yet reported which blocks → | Iristel Inc. | 154E | Bolton | — |
| 2012-04-26 | 289-660 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Ajax-Pickering | — |
| 2012-04-20 | 289-934 | not yet reported which blocks → | TELUS Mobility | 8303 | Newmarket | — |
| 2012-04-19 | 289-940 | not yet reported which blocks → | Videotron Ltd. | 787G | Oakville | — |
| 2012-04-19 | 289-941 | not yet reported which blocks → | Videotron Ltd. | 787G | Hamilton | — |
| 2012-04-19 | 289-943 | not yet reported which blocks → | Videotron Ltd. | 787G | Oshawa | — |
| 2012-04-05 | 289-672 | not yet reported which blocks → | Iristel Inc. | 154E | Niagara-On-The-Lake | — |
| 2012-04-05 | 289-946 | not yet reported which blocks → | Videotron Ltd. | 787G | Brampton | — |
| 2012-04-05 | 289-947 | not yet reported which blocks → | Videotron Ltd. | 787G | Richmond Hill | — |
| 2012-04-02 | 289-402 | not yet reported which blocks → | Iristel Inc. | 154E | Niagara Falls | — |
| 2012-04-02 | 289-797 | not yet reported which blocks → | Iristel Inc. | 154E | Grimsby | — |
| 2012-03-28 | 289-724 | not yet reported which blocks → | Iristel Inc. | 154E | Cooksville | — |
| 2012-03-28 | 289-856 | not yet reported which blocks → | Fibernetics Corporation | 464D | Oakville | — |
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.