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 |
|---|---|---|---|---|---|---|
| 2022-05-12 | 289-353 | not yet reported which blocks → | IXICA Communications Inc. | 812H | St. Catharines-Thorold | — |
| 2020-07-03 | 289-368 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Brampton | — |
| 2018-10-03 | 289-226 | not yet reported which blocks → | Videotron Ltd. | 383F | Grafton | — |
| 2018-09-27 | 289-519 | not yet reported which blocks → | Videotron Ltd. | 383F | Port Hope | — |
| 2017-05-26 | 289-367 | not yet reported which blocks → | Iristel Inc. | 154E | Oshawa | — |
| 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 | — |
| 2015-08-17 | 289-852 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Uxbridge | — |
| 2015-08-10 | 289-739 | not yet reported which blocks → | InnSysVoice Corp | 383H | Ancaster | — |
| 2015-08-10 | 289-743 | not yet reported which blocks → | InnSysVoice Corp | 383H | Binbrook | — |
| 2015-08-10 | 289-750 | not yet reported which blocks → | InnSysVoice Corp | 383H | Hamilton | — |
| 2015-08-10 | 289-751 | not yet reported which blocks → | InnSysVoice Corp | 383H | Caledonia | — |
| 2015-08-10 | 289-753 | not yet reported which blocks → | InnSysVoice Corp | 383H | Dundas | — |
| 2015-08-10 | 289-754 | not yet reported which blocks → | InnSysVoice Corp | 383H | Grimsby | — |
| 2015-08-10 | 289-784 | not yet reported which blocks → | InnSysVoice Corp | 383H | Hagersville | — |
| 2015-08-10 | 289-791 | not yet reported which blocks → | InnSysVoice Corp | 383H | Mount Hope | — |
| 2015-08-10 | 289-792 | not yet reported which blocks → | InnSysVoice Corp | 383H | Stoney Creek | — |
| 2015-08-10 | 289-793 | not yet reported which blocks → | InnSysVoice Corp | 383H | West Lincoln | — |
| 2015-08-10 | 289-794 | not yet reported which blocks → | InnSysVoice Corp | 383H | Winona | — |
| 2015-07-16 | 289-655 | not yet reported which blocks → | InnSysVoice Corp | 383H | Milton | — |
| 2015-07-16 | 289-692 | not yet reported which blocks → | InnSysVoice Corp | 383H | Campbellville | — |
| 2015-07-16 | 289-693 | not yet reported which blocks → | InnSysVoice Corp | 383H | Freelton | — |
| 2015-07-16 | 289-694 | not yet reported which blocks → | InnSysVoice Corp | 383H | Georgetown | — |
| 2015-07-16 | 289-718 | not yet reported which blocks → | InnSysVoice Corp | 383H | Waterdown | — |
| 2015-07-16 | 289-740 | not yet reported which blocks → | InnSysVoice Corp | 383H | Oakville | — |
| 2015-07-16 | 289-741 | not yet reported which blocks → | InnSysVoice Corp | 383H | Burlington | — |
| 2015-07-13 | 289-544 | not yet reported which blocks → | Bell Mobility | 6574 | Brampton | — |
| 2015-06-29 | 289-870 | not yet reported which blocks → | Distributel | 082E | Richmond Hill | — |
| 2015-06-15 | 289-677 | not yet reported which blocks → | Iristel Inc. | 154E | Cobourg | — |
| 2015-06-04 | 289-908 | not yet reported which blocks → | InnSysVoice Corp | 383H | Caledon East | — |
| 2015-06-04 | 289-916 | not yet reported which blocks → | InnSysVoice Corp | 383H | Castlemore | — |
| 2015-06-04 | 289-944 | not yet reported which blocks → | InnSysVoice Corp | 383H | Malton | — |
| 2015-06-04 | 289-945 | not yet reported which blocks → | InnSysVoice Corp | 383H | Clarkson | — |
| 2015-06-04 | 289-951 | not yet reported which blocks → | InnSysVoice Corp | 383H | Cooksville | — |
| 2015-06-04 | 289-953 | not yet reported which blocks → | InnSysVoice Corp | 383H | Port Credit | — |
| 2015-06-04 | 289-954 | not yet reported which blocks → | InnSysVoice Corp | 383H | Snelgrove | — |
| 2015-06-04 | 289-957 | not yet reported which blocks → | InnSysVoice Corp | 383H | Streetsville | — |
| 2015-06-04 | 289-967 | not yet reported which blocks → | InnSysVoice Corp | 383H | Victoria | — |
| 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 | — |
| 2015-05-05 | 289-824 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Caledon East | — |
| 2015-04-29 | 289-671 | not yet reported which blocks → | Bell Mobility | 6574 | Oshawa | — |
| 2015-04-20 | 289-785 | not yet reported which blocks → | Primus Telecommunications Canada Inc. | 201A | Cooksville | — |
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.