NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026
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 |
|---|---|---|---|---|---|---|
| 2016-02-02 | 365-502 | not yet reported which blocks → | Distributel | 082E | Bolton | — |
| 2016-02-02 | 365-503 | not yet reported which blocks → | Distributel | 082E | Claremont | — |
| 2016-02-02 | 365-516 | not yet reported which blocks → | Distributel | 082E | Palgrave | — |
| 2016-02-02 | 365-520 | not yet reported which blocks → | Distributel | 082E | Schomberg | — |
| 2016-02-02 | 365-521 | not yet reported which blocks → | Distributel | 082E | Stouffville | — |
| 2016-02-02 | 365-522 | not yet reported which blocks → | Distributel | 082E | Sutton | — |
| 2016-02-02 | 365-523 | not yet reported which blocks → | Distributel | 082E | Thornhill | — |
| 2016-02-02 | 365-525 | not yet reported which blocks → | Distributel | 082E | Unionville | — |
| 2016-02-02 | 365-526 | not yet reported which blocks → | Distributel | 082E | Uxbridge | — |
| 2016-02-02 | 365-527 | not yet reported which blocks → | Distributel | 082E | Woodbridge | — |
| 2016-02-01 | 365-504 | not yet reported which blocks → | Distributel | 082E | Gormley | — |
| 2016-02-01 | 365-505 | not yet reported which blocks → | Distributel | 082E | Keswick | — |
| 2016-02-01 | 365-506 | not yet reported which blocks → | Distributel | 082E | King City | — |
| 2016-02-01 | 365-507 | not yet reported which blocks → | Distributel | 082E | Kleinburg | — |
| 2016-02-01 | 365-508 | not yet reported which blocks → | Distributel | 082E | Maple | — |
| 2016-02-01 | 365-509 | not yet reported which blocks → | Distributel | 082E | Markham | — |
| 2016-02-01 | 365-510 | not yet reported which blocks → | Distributel | 082E | Mount Albert | — |
| 2016-02-01 | 365-512 | not yet reported which blocks → | Distributel | 082E | Newmarket | — |
| 2016-02-01 | 365-514 | not yet reported which blocks → | Distributel | 082E | Nobleton | — |
| 2016-02-01 | 365-515 | not yet reported which blocks → | Distributel | 082E | Oak Ridges | — |
| 2016-01-28 | 365-275 | not yet reported which blocks → | Bell Mobility | 6574 | Ajax-Pickering | — |
| 2016-01-27 | 365-404 | not yet reported which blocks → | Distributel | 082E | Newcastle | — |
| 2016-01-27 | 365-405 | not yet reported which blocks → | Distributel | 082E | Newtonville | — |
| 2016-01-27 | 365-406 | not yet reported which blocks → | Distributel | 082E | Orono | — |
| 2016-01-27 | 365-407 | not yet reported which blocks → | Distributel | 082E | Port Perry | — |
| 2016-01-27 | 365-408 | not yet reported which blocks → | Distributel | 082E | Blackstock | — |
| 2016-01-27 | 365-777 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Oakville | — |
| 2016-01-26 | 365-401 | not yet reported which blocks → | Distributel | 082E | Bowmanville | — |
| 2016-01-26 | 365-402 | not yet reported which blocks → | Distributel | 082E | Brooklin | — |
| 2016-01-26 | 365-403 | not yet reported which blocks → | Distributel | 082E | Hampton | — |
| 2016-01-25 | 365-888 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Hamilton | — |
| 2016-01-20 | 365-301 | not yet reported which blocks → | Distributel | 082E | Freelton | — |
| 2016-01-20 | 365-302 | not yet reported which blocks → | Distributel | 082E | Georgetown | — |
| 2016-01-20 | 365-303 | not yet reported which blocks → | Distributel | 082E | Milton | — |
| 2016-01-20 | 365-304 | not yet reported which blocks → | Distributel | 082E | Campbellville | — |
| 2016-01-12 | 365-300 | not yet reported which blocks → | Iristel Inc. | 154E | Ajax-Pickering | — |
| 2016-01-12 | 365-400 | not yet reported which blocks → | Iristel Inc. | 154E | Cobourg | — |
| 2016-01-07 | 365-200 | not yet reported which blocks → | Distributel | 082E | Caledon East | — |
| 2016-01-07 | 365-201 | not yet reported which blocks → | Distributel | 082E | Castlemore | — |
| 2016-01-07 | 365-202 | not yet reported which blocks → | Distributel | 082E | Port Credit | — |
| 2016-01-07 | 365-203 | not yet reported which blocks → | Distributel | 082E | Snelgrove | — |
| 2016-01-07 | 365-204 | not yet reported which blocks → | Distributel | 082E | Victoria | — |
| 2015-11-18 | 365-666 | not yet reported which blocks → | InnSysVoice Corp | 383H | Niagara Falls | — |
| 2015-11-18 | 365-667 | not yet reported which blocks → | InnSysVoice Corp | 383H | Niagara-On-The-Lake | — |
| 2015-11-18 | 365-668 | not yet reported which blocks → | InnSysVoice Corp | 383H | St. Catharines-Thorold | — |
| 2015-11-17 | 365-355 | not yet reported which blocks → | Bell Mobility | 6574 | Milton | — |
| 2015-11-09 | 365-340 | not yet reported which blocks → | Bell Mobility | 6574 | Newmarket | — |
| 2015-11-09 | 365-383 | not yet reported which blocks → | Bell Mobility | 6574 | St. Catharines-Thorold | — |
| 2015-10-27 | 365-900 | not yet reported which blocks → | InnSysVoice Corp | 383H | Bradford | — |
| 2015-10-27 | 365-901 | not yet reported which blocks → | InnSysVoice Corp | 383H | Beeton | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.