NumberResearchRecent prefix assignments
372 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
Oct 2026
Sep 2026
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Mar 2026
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Jan 2026
Dec 2025
Nov 2025
Quick find in this area code:
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 519-429 | not yet reported which blocks → | Bell Canada | 8051 | Simcoe | — |
| — | 519-430 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-431 | not yet reported which blocks → | Bell Canada | 8051 | Courtright | — |
| — | 519-432 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-433 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-434 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-435 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-436 | not yet reported which blocks → | Bell Canada | 8051 | Chatham | — |
| — | 519-438 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-439 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-442 | not yet reported which blocks → | Bell Canada | 8051 | Paris | — |
| — | 519-443 | not yet reported which blocks → | Bell Canada | 8051 | Waterford | — |
| — | 519-445 | not yet reported which blocks → | Bell Canada | 8051 | Ohsweken | — |
| — | 519-446 | not yet reported which blocks → | Bell Canada | 8051 | Scotland | — |
| — | 519-448 | not yet reported which blocks → | Bell Canada | 8051 | St. George | — |
| — | 519-449 | not yet reported which blocks → | Bell Canada | 8051 | Burford | — |
| — | 519-451 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-452 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-453 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-454 | not yet reported which blocks → | Bell Canada | 8051 | Bright | — |
| — | 519-455 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-456 | not yet reported which blocks → | Execulink Telecom Inc. | 8216 | Woodstock Independent | — |
| — | 519-457 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-458 | not yet reported which blocks → | Bell Canada | 8051 | Princeton | — |
| — | 519-461 | not yet reported which blocks → | Bell Canada | 8051 | Thorndale | — |
| — | 519-462 | not yet reported which blocks → | Bell Canada | 8051 | Hickson | — |
| — | 519-463 | not yet reported which blocks → | Bell Canada | 8051 | Drumbo | — |
| — | 519-464 | not yet reported which blocks → | Bell Canada | 8051 | Sarnia | — |
| — | 519-465 | not yet reported which blocks → | TELUS Mobility | 8303 | Kitchener-Waterloo | — |
| — | 519-466 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Sarnia | — |
| — | 519-467 | not yet reported which blocks → | Bell Canada | 8051 | Eastwood | — |
| — | 519-468 | not yet reported which blocks → | Execulink Telecom Inc. | 8216 | Norwich Independent | — |
| — | 519-469 | not yet reported which blocks → | Bell Canada | 8051 | Innerkip | — |
| — | 519-471 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-472 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-473 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-474 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-475 | not yet reported which blocks → | Bell Canada | 8051 | Embro | — |
| — | 519-481 | not yet reported which blocks → | Bell Canada | 8051 | Corunna | — |
| — | 519-482 | not yet reported which blocks → | Bell Canada | 8051 | Clinton | — |
| — | 519-484 | not yet reported which blocks → | Bell Canada | 8051 | Mount Pleasant | — |
| — | 519-485 | not yet reported which blocks → | Bell Canada | 8051 | Ingersoll | — |
| — | 519-490 | not yet reported which blocks → | Bell Canada | 8051 | Sarnia | — |
| — | 519-495 | not yet reported which blocks → | TELUS Mobility | 8303 | London | — |
| — | 519-496 | not yet reported which blocks → | TELUS Mobility | 8303 | Kitchener-Waterloo | — |
| — | 519-520 | not yet reported which blocks → | TELUS Mobility | 8303 | London | — |
| — | 519-521 | not yet reported which blocks → | TELUS Mobility | 8303 | London | — |
| — | 519-522 | not yet reported which blocks → | Tuckersmith Communications Co-operative Ltd. | 8240 | Seaforth Independant | — |
| — | 519-523 | not yet reported which blocks → | Bell Canada | 8051 | Blyth | — |
| — | 519-524 | not yet reported which blocks → | Bell Canada | 8051 | Goderich | — |
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.