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 |
|---|---|---|---|---|---|---|
| 2010-10-04 | 289-681 | not yet reported which blocks → | TELUS Mobility | 8303 | Oakville | — |
| 2010-09-13 | 289-927 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Oshawa | — |
| 2010-08-31 | 289-933 | not yet reported which blocks → | TELUS Mobility | 8303 | Hamilton | — |
| 2010-08-31 | 289-938 | not yet reported which blocks → | TELUS Mobility | 8303 | Burlington | — |
| 2010-08-31 | 289-939 | not yet reported which blocks → | TELUS Mobility | 8303 | Oshawa | — |
| 2010-08-26 | 289-993 | not yet reported which blocks → | TELUS Mobility | 8303 | Oakville | — |
| 2010-08-13 | 289-358 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Hamilton | — |
| 2010-08-13 | 289-359 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Malton | — |
| 2010-08-13 | 289-361 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Niagara Falls | — |
| 2010-08-13 | 289-363 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Oakville | — |
| 2010-08-13 | 289-364 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | St. Catharines-Thorold | — |
| 2010-08-13 | 289-375 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Streetsville | — |
| 2010-08-13 | 289-390 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Thornhill | — |
| 2010-08-13 | 289-392 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Unionville | — |
| 2010-08-13 | 289-393 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Woodbridge | — |
| 2010-08-11 | 289-417 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Ajax-Pickering | — |
| 2010-08-11 | 289-418 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Brampton | — |
| 2010-08-11 | 289-419 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Burlington | — |
| 2010-08-11 | 289-420 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Clarkson | — |
| 2010-08-11 | 289-421 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Cooksville | — |
| 2010-08-10 | 289-254 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Oshawa | — |
| 2010-08-06 | 289-383 | not yet reported which blocks → | Bell Mobility | 6574 | Newmarket | — |
| 2010-06-16 | 289-981 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Oakville | — |
| 2010-06-16 | 289-983 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Burlington | — |
| 2010-06-11 | 289-795 | not yet reported which blocks → | Bell Mobility | 6574 | Oakville | — |
| 2010-06-04 | 289-988 | not yet reported which blocks → | TELUS Mobility | 8303 | Ajax-Pickering | — |
| 2010-05-27 | 289-799 | not yet reported which blocks → | Iristel Inc. | 154E | Hamilton | — |
| 2010-05-13 | 289-279 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Newmarket | — |
| 2010-05-05 | 289-923 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Ajax-Pickering | — |
| 2010-05-05 | 289-924 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Georgetown | — |
| 2010-05-05 | 289-925 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Hamilton | — |
| 2010-05-05 | 289-926 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Newmarket | — |
| 2010-03-26 | 289-977 | not yet reported which blocks → | Managed Network Systems Inc. | 2776 | Burlington | — |
| 2010-03-26 | 289-978 | not yet reported which blocks → | Managed Network Systems Inc. | 2776 | Hamilton | — |
| 2010-03-23 | 289-990 | not yet reported which blocks → | Videotron Ltd. | 383F | St. Catharines-Thorold | — |
| 2010-03-18 | 289-305 | not yet reported which blocks → | Bell Canada | 8051 | Streetsville | — |
| 2010-03-18 | 289-357 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Maple | — |
| 2010-03-12 | 289-986 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | South Pickering | — |
| 2010-03-12 | 289-989 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Whitby | — |
| 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 | — |
| 2010-02-25 | 289-356 | not yet reported which blocks → | Bell Mobility | 6574 | Oshawa | — |
| 2010-02-18 | 289-230 | not yet reported which blocks → | TELUS Mobility | 8303 | Burlington | — |
| 2010-01-04 | 289-381 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Dunnville | — |
| 2009-12-31 | 289-300 | not yet reported which blocks → | Videotron Ltd. | 383F | Oakville | — |
| 2009-12-31 | 289-489 | not yet reported which blocks → | Videotron Ltd. | 383F | Hamilton | — |
| 2009-12-31 | 289-689 | not yet reported which blocks → | Videotron Ltd. | 383F | Hamilton | — |
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.