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.
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2026-06-12 | 365-979 | not yet reported which blocks → | TELUS Mobility | 646F | Hamilton | — |
| 2026-05-14 | 365-727 | not yet reported which blocks → | TELUS Mobility | 8303 | Aurora | — |
| 2022-09-20 | 365-987 | not yet reported which blocks → | TELUS Mobility | 8303 | Brampton | — |
| 2021-02-19 | 365-262 | not yet reported which blocks → | TELUS Mobility | 8303 | Ajax-Pickering | — |
| 2019-11-28 | 365-991 | not yet reported which blocks → | TELUS Mobility | 646F | St. Catharines-Thorold | — |
| 2019-11-12 | 365-992 | not yet reported which blocks → | TELUS Mobility | 646F | Hamilton | — |
| 2019-11-12 | 365-993 | not yet reported which blocks → | TELUS Mobility | 646F | Oshawa | — |
| 2019-10-25 | 365-994 | not yet reported which blocks → | TELUS Mobility | 8303 | Brampton | — |
| 2018-08-10 | 365-996 | not yet reported which blocks → | TELUS Mobility | 8303 | Oakville | — |
| 2016-11-04 | 365-997 | not yet reported which blocks → | TELUS Mobility | 8303 | Brampton | — |
| 2016-10-04 | 365-998 | not yet reported which blocks → | TELUS Mobility | 8303 | Brampton | — |
| 2015-10-07 | 365-999 | not yet reported which blocks → | TELUS Mobility | 8303 | Burlington | — |
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.