NumberResearchRecent prefix assignments
375 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/30/2026
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, last 30 days
New assignments by month
Sep 2026
Aug 2026
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Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
Quick find in this area code:
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 519-623 | not yet reported which blocks → | Bell Canada | 8051 | Galt | — |
| — | 519-624 | not yet reported which blocks → | Bell Canada | 8051 | Galt | — |
| — | 519-625 | not yet reported which blocks → | Bell Canada | 8051 | Shakespeare | — |
| — | 519-627 | not yet reported which blocks → | Bell Canada | 8051 | Wallaceburg | — |
| — | 519-628 | not yet reported which blocks → | Bell Canada | 8051 | Wallaceburg | — |
| — | 519-630 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | London | — |
| — | 519-631 | not yet reported which blocks → | Bell Canada | 8051 | St. Thomas | — |
| — | 519-632 | not yet reported which blocks → | Bell Canada | 8051 | Ayr | — |
| — | 519-633 | not yet reported which blocks → | Bell Canada | 8051 | St. Thomas | — |
| — | 519-634 | not yet reported which blocks → | Bell Canada | 8051 | Baden | — |
| — | 519-635 | not yet reported which blocks → | TELUS Mobility | 8303 | Kitchener-Waterloo | — |
| — | 519-637 | not yet reported which blocks → | Bell Canada | 8051 | St. Thomas | — |
| — | 519-638 | not yet reported which blocks → | Bell Canada | 8051 | Drayton | — |
| — | 519-640 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-641 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-642 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-643 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-644 | not yet reported which blocks → | Bell Canada | 8051 | Belmont | — |
| — | 519-645 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-646 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-647 | not yet reported which blocks → | Bell Canada | 8051 | Lynden | — |
| — | 519-648 | not yet reported which blocks → | Bell Canada | 8051 | Breslau | — |
| — | 519-649 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-650 | not yet reported which blocks → | Bell Canada | 8051 | Preston | — |
| — | 519-651 | not yet reported which blocks → | Bell Canada | 8051 | Hespeler | — |
| — | 519-652 | not yet reported which blocks → | Bell Canada | 8051 | Lambeth | — |
| — | 519-653 | not yet reported which blocks → | Bell Canada | 8051 | Preston | — |
| — | 519-654 | not yet reported which blocks → | Bell Canada | 8051 | Hespeler | — |
| — | 519-655 | not yet reported which blocks → | Bell Canada | 8051 | Tavistock | — |
| — | 519-656 | not yet reported which blocks → | Bell Canada | 8051 | Wellesley | — |
| — | 519-657 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-658 | not yet reported which blocks → | Bell Canada | 8051 | Hespeler | — |
| — | 519-659 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-660 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-661 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-662 | not yet reported which blocks → | Bell Canada | 8051 | New Hamburg | — |
| — | 519-663 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-664 | not yet reported which blocks → | Bell Canada | 8051 | St. Jacobs | — |
| — | 519-665 | not yet reported which blocks → | Wightman Telephone Ltd. | 8245 | Ayton | — |
| — | 519-666 | not yet reported which blocks → | Bell Canada | 8051 | Ilderton | — |
| — | 519-667 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-668 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-669 | not yet reported which blocks → | Bell Canada | 8051 | Elmira | — |
| — | 519-670 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | London | — |
| — | 519-671 | not yet reported which blocks → | Bell Mobility | 6574 | London | — |
| — | 519-672 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-673 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-674 | not yet reported which blocks → | Bell Canada | 8051 | Ridgetown | — |
| — | 519-675 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-676 | not yet reported which blocks → | Bell Canada | 8051 | Blenheim | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/30/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.