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
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May 2026
Apr 2026
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2015-03-18 | 289-710 | not yet reported which blocks → | InnSysVoice Corp | 383H | Orono | — |
| 2015-03-18 | 289-713 | not yet reported which blocks → | InnSysVoice Corp | 383H | Port Perry | — |
| 2015-03-18 | 289-717 | not yet reported which blocks → | InnSysVoice Corp | 383H | Whitby | — |
| 2015-03-18 | 289-744 | not yet reported which blocks → | InnSysVoice Corp | 383H | South Pickering | — |
| 2015-03-17 | 289-533 | not yet reported which blocks → | InnSysVoice Corp | 383H | Ajax-Pickering | — |
| 2015-03-17 | 289-702 | not yet reported which blocks → | InnSysVoice Corp | 383H | Blackstock | — |
| 2015-03-17 | 289-703 | not yet reported which blocks → | InnSysVoice Corp | 383H | Bowmanville | — |
| 2015-03-17 | 289-704 | not yet reported which blocks → | InnSysVoice Corp | 383H | Brooklin | — |
| 2015-03-17 | 289-706 | not yet reported which blocks → | InnSysVoice Corp | 383H | Hampton | — |
| 2015-03-17 | 289-708 | not yet reported which blocks → | InnSysVoice Corp | 383H | Newcastle | — |
| 2015-03-17 | 289-709 | not yet reported which blocks → | InnSysVoice Corp | 383H | Newtonville | — |
| 2015-03-17 | 289-712 | not yet reported which blocks → | InnSysVoice Corp | 383H | Oshawa | — |
| 2015-03-16 | 289-561 | not yet reported which blocks → | InnSysVoice Corp | 383H | Thornhill | — |
| 2015-03-16 | 289-563 | not yet reported which blocks → | InnSysVoice Corp | 383H | Unionville | — |
| 2015-03-16 | 289-564 | not yet reported which blocks → | InnSysVoice Corp | 383H | Uxbridge | — |
| 2015-03-16 | 289-641 | not yet reported which blocks → | InnSysVoice Corp | 383H | Woodbridge | — |
| 2015-03-16 | 289-699 | not yet reported which blocks → | InnSysVoice Corp | 383H | Richmond Hill | — |
| 2015-03-13 | 289-543 | not yet reported which blocks → | InnSysVoice Corp | 383H | Oak Ridges | — |
| 2015-03-13 | 289-558 | not yet reported which blocks → | InnSysVoice Corp | 383H | Stouffville | — |
| 2015-03-13 | 289-559 | not yet reported which blocks → | InnSysVoice Corp | 383H | Sutton | — |
| 2015-03-12 | 289-532 | not yet reported which blocks → | InnSysVoice Corp | 383H | Maple | — |
| 2015-03-12 | 289-534 | not yet reported which blocks → | InnSysVoice Corp | 383H | Mount Albert | — |
| 2015-03-12 | 289-535 | not yet reported which blocks → | InnSysVoice Corp | 383H | Newmarket | — |
| 2015-03-12 | 289-542 | not yet reported which blocks → | InnSysVoice Corp | 383H | Nobleton | — |
| 2015-03-12 | 289-546 | not yet reported which blocks → | InnSysVoice Corp | 383H | Palgrave | — |
| 2015-03-12 | 289-549 | not yet reported which blocks → | InnSysVoice Corp | 383H | Queensville | — |
| 2015-03-12 | 289-557 | not yet reported which blocks → | InnSysVoice Corp | 383H | Schomberg | — |
| 2015-03-11 | 289-461 | not yet reported which blocks → | InnSysVoice Corp | 383H | Bolton | — |
| 2015-03-11 | 289-462 | not yet reported which blocks → | InnSysVoice Corp | 383H | Claremont | — |
| 2015-03-11 | 289-486 | not yet reported which blocks → | InnSysVoice Corp | 383H | Gormley | — |
| 2015-03-11 | 289-528 | not yet reported which blocks → | InnSysVoice Corp | 383H | Keswick | — |
| 2015-03-11 | 289-530 | not yet reported which blocks → | InnSysVoice Corp | 383H | King City | — |
| 2015-03-11 | 289-531 | not yet reported which blocks → | InnSysVoice Corp | 383H | Kleinburg | — |
| 2015-03-10 | 289-258 | not yet reported which blocks → | InnSysVoice Corp | 383H | Aurora | — |
| 2015-03-10 | 289-262 | not yet reported which blocks → | InnSysVoice Corp | 383H | Bethesda | — |
| 2015-03-06 | 289-673 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Welland | — |
| 2015-03-05 | 289-551 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Hamilton | — |
| 2015-03-05 | 289-659 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Hamilton | — |
| 2015-03-04 | 289-552 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Aurora | — |
| 2015-01-29 | 289-547 | not yet reported which blocks → | Bell Mobility | 6574 | Niagara Falls | — |
| 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 | — |
| 2014-12-05 | 289-513 | not yet reported which blocks → | Iristel Inc. | 154E | Bowmanville | — |
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.