NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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 825
Fibernetics Corporation 44
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
Clear Download CSV ↓
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2025-04-30 825-944 not yet reported which blocks → Fibernetics Corporation 464D Calgary —
2025-04-30 825-946 not yet reported which blocks → Fibernetics Corporation 464D Edmonton —
2023-06-26 825-496 not yet reported which blocks → Fibernetics Corporation 464D Canmore —
2023-06-26 825-497 not yet reported which blocks → Fibernetics Corporation 464D High River —
2023-06-26 825-498 not yet reported which blocks → Fibernetics Corporation 464D Strathmore —
2023-05-23 825-489 not yet reported which blocks → Fibernetics Corporation 464D Airdrie —
2023-05-23 825-490 not yet reported which blocks → Fibernetics Corporation 464D Calgary —
2023-05-23 825-491 not yet reported which blocks → Fibernetics Corporation 464D Cochrane —
2023-05-23 825-492 not yet reported which blocks → Fibernetics Corporation 464D Okotoks —
2023-02-16 825-936 not yet reported which blocks → Fibernetics Corporation 464D Longview —
2023-02-16 825-937 not yet reported which blocks → Fibernetics Corporation 464D Milo —
2023-02-16 825-938 not yet reported which blocks → Fibernetics Corporation 464D Morley —
2023-02-16 825-939 not yet reported which blocks → Fibernetics Corporation 464D Nanton —
2023-02-16 825-940 not yet reported which blocks → Fibernetics Corporation 464D Rockyford —
2023-02-16 825-941 not yet reported which blocks → Fibernetics Corporation 464D Stavely —
2023-02-16 825-942 not yet reported which blocks → Fibernetics Corporation 464D Turner Valley —
2023-02-16 825-943 not yet reported which blocks → Fibernetics Corporation 464D Vulcan —
2023-02-14 825-918 not yet reported which blocks → Fibernetics Corporation 464D Cremona —
2023-02-14 825-919 not yet reported which blocks → Fibernetics Corporation 464D Exshaw —
2023-02-14 825-920 not yet reported which blocks → Fibernetics Corporation 464D Gleichen —
2023-02-14 825-921 not yet reported which blocks → Fibernetics Corporation 464D Hussar —
2023-02-14 825-922 not yet reported which blocks → Fibernetics Corporation 464D Irricana —
2023-02-14 825-923 not yet reported which blocks → Fibernetics Corporation 464D Kananaskis —
2023-02-14 825-924 not yet reported which blocks → Fibernetics Corporation 464D Lomond —
2023-01-25 825-562 not yet reported which blocks → Fibernetics Corporation 464D Acme —
2023-01-25 825-563 not yet reported which blocks → Fibernetics Corporation 464D Arrowwood —
2023-01-25 825-564 not yet reported which blocks → Fibernetics Corporation 464D Beiseker —
2023-01-25 825-565 not yet reported which blocks → Fibernetics Corporation 464D Blackie —
2023-01-25 825-566 not yet reported which blocks → Fibernetics Corporation 464D Bragg Creek —
2023-01-25 825-567 not yet reported which blocks → Fibernetics Corporation 464D Cayley —
2023-01-25 825-568 not yet reported which blocks → Fibernetics Corporation 464D Champion —
2023-01-18 825-878 not yet reported which blocks → Fibernetics Corporation 464D Edmonton —
2020-11-09 825-815 not yet reported which blocks → Fibernetics Corporation 464D Carstairs —
2020-11-09 825-816 not yet reported which blocks → Fibernetics Corporation 464D Crossfield —
2020-11-09 825-817 not yet reported which blocks → Fibernetics Corporation 464D Langdon —
2020-11-09 825-860 not yet reported which blocks → Fibernetics Corporation 464D Edmonton —
2020-11-03 825-853 not yet reported which blocks → Fibernetics Corporation 464D Calgary —
2020-04-21 825-857 not yet reported which blocks → Fibernetics Corporation 464D Cochrane —
2020-04-21 825-858 not yet reported which blocks → Fibernetics Corporation 464D Canmore —
2020-04-21 825-859 not yet reported which blocks → Fibernetics Corporation 464D Airdrie —
2020-04-17 825-854 not yet reported which blocks → Fibernetics Corporation 464D Strathmore —
2020-04-17 825-855 not yet reported which blocks → Fibernetics Corporation 464D Okotoks —
2020-04-17 825-856 not yet reported which blocks → Fibernetics Corporation 464D High River —
2020-01-17 825-818 not yet reported which blocks → Fibernetics Corporation 464D Banff —

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.