Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

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 431
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2020-12-21 431-871 not yet reported which blocks → Westman Media Cooperative Ltd 120F Notre Dame de Lourdes
2020-11-05 431-945 not yet reported which blocks → Bell Mobility 6574 Winnipeg
2020-11-02 431-841 not yet reported which blocks → Bell Mobility 6574 Winnipeg
2020-10-30 431-842 not yet reported which blocks → Bell Mobility 6574 Winnipeg
2020-10-29 431-843 not yet reported which blocks → Bell Mobility 6574 Winnipeg
2020-10-28 431-844 not yet reported which blocks → Bell Mobility 6574 Winnipeg
2020-10-14 431-278 not yet reported which blocks → Bell Mobility 6574 Winnipeg
2020-09-29 431-926 not yet reported which blocks → Fibernetics Corporation 464D Anola
2020-09-29 431-927 not yet reported which blocks → Fibernetics Corporation 464D Macdonald
2020-09-29 431-928 not yet reported which blocks → Fibernetics Corporation 464D Stonewall
2020-09-29 431-929 not yet reported which blocks → Fibernetics Corporation 464D Swan Lake
2020-09-29 431-930 not yet reported which blocks → Fibernetics Corporation 464D Treherne
2020-09-18 431-830 not yet reported which blocks → Iristel Inc. 154E Anola
2020-09-16 431-306 not yet reported which blocks → Iristel Inc. 154E Portage La Prairie
2020-09-16 431-446 not yet reported which blocks → Iristel Inc. 154E Winnipeg
2020-09-15 431-445 not yet reported which blocks → Iristel Inc. 154E Winnipeg
2020-09-08 431-244 not yet reported which blocks → Iristel Inc. 154E Stonewall
2020-09-01 431-600 not yet reported which blocks → Iristel Inc. 154E Oakbank
2020-08-31 431-430 not yet reported which blocks → Iristel Inc. 154E Oakbank
2020-08-31 431-500 not yet reported which blocks → Iristel Inc. 154E Oakbank
2020-08-21 431-322 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Portage La Prairie
2020-08-21 431-332 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Portage La Prairie
2020-08-21 431-622 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Portage La Prairie
2020-08-21 431-922 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Portage La Prairie
2020-08-11 431-900 not yet reported which blocks → Westman Media Cooperative Ltd 120F Treherne
2020-08-11 431-901 not yet reported which blocks → Westman Media Cooperative Ltd 120F Rathwell
2020-08-11 431-902 not yet reported which blocks → Westman Media Cooperative Ltd 120F Austin
2020-07-30 431-932 not yet reported which blocks → Fibernetics Corporation 464D Winnipeg
2020-07-10 431-408 not yet reported which blocks → LES.NET (1996) Inc. 141F St. Adolphe
2020-07-06 431-277 not yet reported which blocks → Bell Mobility 6574 Winnipeg
2020-07-06 431-407 not yet reported which blocks → LES.NET (1996) Inc. 141F Russell
2020-07-06 431-409 not yet reported which blocks → LES.NET (1996) Inc. 141F Ste. Agathe
2020-07-06 431-410 not yet reported which blocks → LES.NET (1996) Inc. 141F Stony Mountain
2020-07-06 431-412 not yet reported which blocks → LES.NET (1996) Inc. 141F Virden
2020-06-23 431-404 not yet reported which blocks → LES.NET (1996) Inc. 141F Emerson
2020-06-22 431-402 not yet reported which blocks → LES.NET (1996) Inc. 141F Altona
2020-06-22 431-403 not yet reported which blocks → LES.NET (1996) Inc. 141F Beausejour
2020-06-22 431-405 not yet reported which blocks → LES.NET (1996) Inc. 141F Grandview
2020-06-22 431-406 not yet reported which blocks → LES.NET (1996) Inc. 141F Rivers
2020-04-16 431-931 not yet reported which blocks → Fibernetics Corporation 464D Portage La Prairie
2020-04-09 431-470 not yet reported which blocks → Bell Mobility 6574 Winnipeg
2020-04-08 431-482 not yet reported which blocks → TELUS Integrated Communications 2782 Winnipeg
2020-02-24 431-341 not yet reported which blocks → Iristel Inc. 154E Starbuck
2020-02-19 431-206 not yet reported which blocks → Bell Mobility 6574 Winnipeg
2020-01-29 431-441 not yet reported which blocks → Iristel Inc. 154E Winnipeg
2020-01-29 431-444 not yet reported which blocks → Iristel Inc. 154E Winnipeg
2020-01-09 431-819 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Fisher Branch
2020-01-08 431-818 not yet reported which blocks → Fido Solutions Inc. 5643 Fisher Branch
2020-01-07 431-542 not yet reported which blocks → Bell Mobility 6574 Brandon
2019-12-04 431-243 not yet reported which blocks → Bell Mobility 6574 Thompson

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.