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 905
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 |
|---|---|---|---|---|---|---|
| — | 905-374 | not yet reported which blocks → | Bell Canada | 8051 | Niagara Falls | — |
| — | 905-375 | not yet reported which blocks → | Bell Canada | 8051 | Cobourg | — |
| — | 905-377 | not yet reported which blocks → | Bell Canada | 8051 | Cobourg | — |
| — | 905-381 | not yet reported which blocks → | Bell Canada | 8051 | Hamilton | — |
| — | 905-382 | not yet reported which blocks → | Bell Canada | 8051 | Stevensville | — |
| — | 905-383 | not yet reported which blocks → | Bell Canada | 8051 | Hamilton | — |
| — | 905-384 | not yet reported which blocks → | Bell Canada | 8051 | Port Robinson | — |
| — | 905-385 | not yet reported which blocks → | Bell Canada | 8051 | Hamilton | — |
| — | 905-386 | not yet reported which blocks → | Bell Canada | 8051 | Wellandport | — |
| — | 905-387 | not yet reported which blocks → | Bell Canada | 8051 | Hamilton | — |
| — | 905-388 | not yet reported which blocks → | Bell Canada | 8051 | Hamilton | — |
| — | 905-389 | not yet reported which blocks → | Bell Canada | 8051 | Hamilton | — |
| — | 905-403 | not yet reported which blocks → | Bell Canada | 8051 | Clarkson | — |
| — | 905-404 | not yet reported which blocks → | Bell Canada | 8051 | Oshawa | — |
| — | 905-405 | not yet reported which blocks → | Bell Canada | 8051 | Malton | — |
| — | 905-415 | not yet reported which blocks → | Bell Canada | 8051 | Unionville | — |
| — | 905-420 | not yet reported which blocks → | Bell Canada | 8051 | South Pickering | — |
| — | 905-424 | not yet reported which blocks → | Bell Canada | 8051 | Ajax-Pickering | — |
| — | 905-426 | not yet reported which blocks → | Bell Canada | 8051 | Ajax-Pickering | — |
| — | 905-427 | not yet reported which blocks → | Bell Canada | 8051 | Ajax-Pickering | — |
| — | 905-428 | not yet reported which blocks → | Bell Canada | 8051 | Ajax-Pickering | — |
| — | 905-429 | not yet reported which blocks → | Bell Canada | 8051 | Oshawa | — |
| — | 905-430 | not yet reported which blocks → | Bell Canada | 8051 | Whitby | — |
| — | 905-432 | not yet reported which blocks → | Bell Canada | 8051 | Oshawa | — |
| — | 905-433 | not yet reported which blocks → | Bell Canada | 8051 | Oshawa | — |
| — | 905-434 | not yet reported which blocks → | Bell Canada | 8051 | Oshawa | — |
| — | 905-435 | not yet reported which blocks → | Bell Canada | 8051 | Oshawa | — |
| — | 905-436 | not yet reported which blocks → | Bell Canada | 8051 | Oshawa | — |
| — | 905-438 | not yet reported which blocks → | Bell Canada | 8051 | Oshawa | — |
| — | 905-440 | not yet reported which blocks → | Bell Canada | 8051 | Oshawa | — |
| — | 905-450 | not yet reported which blocks → | Bell Canada | 8051 | Brampton | — |
| — | 905-451 | not yet reported which blocks → | Bell Canada | 8051 | Brampton | — |
| — | 905-452 | not yet reported which blocks → | Bell Canada | 8051 | Brampton | — |
| — | 905-453 | not yet reported which blocks → | Bell Canada | 8051 | Brampton | — |
| — | 905-454 | not yet reported which blocks → | Bell Canada | 8051 | Brampton | — |
| — | 905-455 | not yet reported which blocks → | Bell Canada | 8051 | Brampton | — |
| — | 905-456 | not yet reported which blocks → | Bell Canada | 8051 | Brampton | — |
| — | 905-457 | not yet reported which blocks → | Bell Canada | 8051 | Brampton | — |
| — | 905-458 | not yet reported which blocks → | Bell Canada | 8051 | Brampton | — |
| — | 905-459 | not yet reported which blocks → | Bell Canada | 8051 | Brampton | — |
| — | 905-460 | not yet reported which blocks → | Bell Canada | 8051 | Brampton | — |
| — | 905-465 | not yet reported which blocks → | Bell Canada | 8051 | Oakville | — |
| — | 905-468 | not yet reported which blocks → | Bell Canada | 8051 | Niagara-On-The-Lake | — |
| — | 905-469 | not yet reported which blocks → | Bell Canada | 8051 | Oakville | — |
| — | 905-470 | not yet reported which blocks → | Bell Canada | 8051 | Unionville | — |
| — | 905-471 | not yet reported which blocks → | Bell Canada | 8051 | Markham | — |
| — | 905-472 | not yet reported which blocks → | Bell Canada | 8051 | Markham | — |
| — | 905-473 | not yet reported which blocks → | Bell Canada | 8051 | Mount Albert | — |
| — | 905-474 | not yet reported which blocks → | Bell Canada | 8051 | Unionville | — |
| — | 905-475 | not yet reported which blocks → | Bell Canada | 8051 | Unionville | — |
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.