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 365
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 |
|---|---|---|---|---|---|---|
| 2019-07-15 | 365-687 | not yet reported which blocks → | Iristel Inc. | 154E | Markham | — |
| 2019-07-05 | 365-661 | not yet reported which blocks → | Iristel Inc. | 154E | Dunnville | — |
| 2019-06-24 | 365-259 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Palgrave | — |
| 2019-06-18 | 365-256 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Castlemore | — |
| 2019-06-18 | 365-257 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Snelgrove | — |
| 2019-06-18 | 365-258 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Victoria | — |
| 2019-06-07 | 365-567 | not yet reported which blocks → | ExaTEL Inc. | 3147 | Schomberg | — |
| 2019-05-03 | 365-809 | not yet reported which blocks → | Iristel Inc. | 154E | Aurora | — |
| 2019-05-02 | 365-298 | not yet reported which blocks → | Iristel Inc. | 154E | Ajax-Pickering | — |
| 2019-03-06 | 365-558 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Milton | — |
| 2019-02-05 | 365-398 | not yet reported which blocks → | Iristel Inc. | 154E | Cobourg | — |
| 2018-12-19 | 365-877 | not yet reported which blocks → | Bell Canada | 8051 | Milton | — |
| 2018-10-11 | 365-292 | not yet reported which blocks → | Bell Mobility | 6574 | Oakville | — |
| 2018-09-18 | 365-833 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Hamilton | — |
| 2018-09-18 | 365-855 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | St. Catharines-Thorold | — |
| 2018-09-06 | 365-268 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Newmarket | — |
| 2018-08-29 | 365-724 | not yet reported which blocks → | Videotron Ltd. | 383F | Cobourg | — |
| 2018-08-17 | 365-822 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Milton | — |
| 2018-08-10 | 365-996 | not yet reported which blocks → | TELUS Mobility | 8303 | Oakville | — |
| 2018-08-02 | 365-230 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Brampton | — |
| 2018-08-02 | 365-231 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Brampton | — |
| 2018-07-19 | 365-323 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| 2018-07-06 | 365-399 | not yet reported which blocks → | Iristel Inc. | 154E | Cobourg | — |
| 2018-07-04 | 365-598 | not yet reported which blocks → | Iristel Inc. | 154E | Thornhill | — |
| 2018-06-28 | 365-588 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Dunnville | — |
| 2018-06-22 | 365-692 | not yet reported which blocks → | Iristel Inc. | 154E | Markham | — |
| 2018-06-22 | 365-693 | not yet reported which blocks → | Iristel Inc. | 154E | Markham | — |
| 2018-06-22 | 365-694 | not yet reported which blocks → | Iristel Inc. | 154E | Markham | — |
| 2018-05-29 | 365-246 | not yet reported which blocks → | Distributel | 082E | Beeton | — |
| 2018-05-29 | 365-247 | not yet reported which blocks → | Distributel | 082E | Bradford | — |
| 2018-05-29 | 365-248 | not yet reported which blocks → | Distributel | 082E | Tottenham | — |
| 2018-03-28 | 365-451 | not yet reported which blocks → | Distributel | 082E | Selkirk | — |
| 2018-03-28 | 365-452 | not yet reported which blocks → | Distributel | 082E | Vineland | — |
| 2018-03-28 | 365-453 | not yet reported which blocks → | Distributel | 082E | Wellandport | — |
| 2018-03-28 | 365-454 | not yet reported which blocks → | Distributel | 082E | Welland | — |
| 2018-03-28 | 365-458 | not yet reported which blocks → | Distributel | 082E | Ridgeway | — |
| 2018-03-28 | 365-459 | not yet reported which blocks → | Distributel | 082E | Stevensville | — |
| 2018-03-28 | 365-460 | not yet reported which blocks → | Distributel | 082E | Wainfleet | — |
| 2018-03-27 | 365-446 | not yet reported which blocks → | Distributel | 082E | Cayuga | — |
| 2018-03-27 | 365-447 | not yet reported which blocks → | Distributel | 082E | Niagara Falls | — |
| 2018-03-27 | 365-448 | not yet reported which blocks → | Distributel | 082E | Niagara-On-The-Lake | — |
| 2018-03-27 | 365-449 | not yet reported which blocks → | Distributel | 082E | Pelham | — |
| 2018-03-27 | 365-450 | not yet reported which blocks → | Distributel | 082E | Port Robinson | — |
| 2018-03-27 | 365-455 | not yet reported which blocks → | Distributel | 082E | Fisherville | — |
| 2018-03-27 | 365-456 | not yet reported which blocks → | Distributel | 082E | Fort Erie | — |
| 2018-03-27 | 365-457 | not yet reported which blocks → | Distributel | 082E | Port Colborne | — |
| 2018-03-21 | 365-210 | not yet reported which blocks → | Distributel | 082E | Ancaster | — |
| 2018-03-21 | 365-212 | not yet reported which blocks → | Distributel | 082E | Binbrook | — |
| 2018-03-21 | 365-214 | not yet reported which blocks → | Distributel | 082E | Dundas | — |
| 2018-03-21 | 365-215 | not yet reported which blocks → | Distributel | 082E | Hagersville | — |
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.