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 519
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 |
|---|---|---|---|---|---|---|
| 2008-02-26 | 519-605 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Rockwood | — |
| 2008-02-14 | 519-607 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Tilbury | — |
| 2007-07-18 | 519-714 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Hespeler | — |
| 2007-05-10 | 519-915 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Windsor | — |
| 2007-05-02 | 519-904 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Kitchener-Waterloo | — |
| 2007-03-13 | 519-953 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | London | — |
| 2006-12-15 | 519-713 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Amherstburg | — |
| 2006-12-15 | 519-715 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Belle River | — |
| 2006-12-15 | 519-956 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Tecumseh | — |
| 2006-12-15 | 519-970 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | La Salle | — |
| 2006-06-20 | 519-598 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Chatham | — |
| 2006-06-20 | 519-960 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Windsor | — |
| 2006-04-21 | 519-813 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Corunna | — |
| 2006-04-21 | 519-908 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Bright's Grove | — |
| 2006-03-23 | 519-491 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Sarnia | — |
| 2006-03-09 | 519-929 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Acton | — |
| 2006-02-22 | 519-712 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Kingsville | — |
| 2006-02-22 | 519-961 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Essex | — |
| 2006-02-15 | 519-398 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Leamington | — |
| 2006-02-15 | 519-626 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Wallaceburg | — |
| 2004-02-16 | 519-618 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Galt | — |
| 2003-02-06 | 519-397 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Chatham | — |
| 2003-02-05 | 519-707 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Kitchener-Waterloo | — |
| 2003-02-05 | 519-840 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Guelph | — |
| 2003-02-05 | 519-930 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | London | — |
| 2003-02-05 | 519-962 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Windsor | — |
| 2002-10-17 | 519-838 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Guelph | — |
| 2002-07-22 | 519-388 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Chatham | — |
| 2001-03-05 | 519-783 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Kitchener-Waterloo | — |
| 2001-02-28 | 519-968 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Windsor | — |
| 2000-06-22 | 519-937 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | London | — |
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.