NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, all time — NPA 906
123.NET, LLC 23
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 thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2011-02-16 906-825-5XXX 5000–5999Assigned 123.NET, LLC 2550 GLADSTONE MI
2004-10-13 906-828-0XXX 0000–0999Assigned 123.NET, LLC 2550 IRON MT MI
2004-09-30 906-289-5XXX 5000–5999Assigned 123.NET, LLC 2550 KEWEENAW MI
2004-09-30 906-323-3XXX 3000–3999Assigned 123.NET, LLC 2550 MICHIGAMME MI
2004-09-30 906-356-1XXX 1000–1999Assigned 123.NET, LLC 2550 ROCK MI
2004-09-30 906-364-6XXX 6000–6999Assigned 123.NET, LLC 2550 IRONWOOD MI
2004-09-30 906-365-4XXX 4000–4999Assigned 123.NET, LLC 2550 BERGLAND MI
2004-09-30 906-367-8XXX 8000–8999Assigned 123.NET, LLC 2550 IRON RIVER MI
2004-09-30 906-368-2XXX 2000–2999Assigned 123.NET, LLC 2550 POWERS MI
2004-09-30 906-376-1XXX 1000–1999Assigned 123.NET, LLC 2550 REPUBLIC MI
2004-09-30 906-379-1XXX 1000–1999Assigned 123.NET, LLC 2550 SALTSTMARI MI
2004-09-30 906-477-2XXX 2000–2999Assigned 123.NET, LLC 2550 ENGADINE MI
2004-09-30 906-523-0XXX 0000–0999Assigned 123.NET, LLC 2550 HOUGHTON MI
2004-09-30 906-553-0XXX 0000–0999Assigned 123.NET, LLC 2550 ESCANABA MI
2004-09-30 906-569-8XXX 8000–8999Assigned 123.NET, LLC 2550 TROUT LAKE MI
2004-09-30 906-586-0XXX 0000–0999Assigned 123.NET, LLC 2550 CURTIS MI
2004-09-30 906-670-1XXX 1000–1999Assigned 123.NET, LLC 2550 WATERSMEET MI
2004-09-30 906-753-8XXX 8000–8999Assigned 123.NET, LLC 2550 STEPHENSON MI
2004-09-30 906-762-1XXX 1000–1999Assigned 123.NET, LLC 2550 NEWBERRY MI
2004-09-30 906-792-7XXX 7000–7999Assigned 123.NET, LLC 2550 MENOMINEE MI
2004-09-30 906-847-7XXX 7000–7999Assigned 123.NET, LLC 2550 MACKINACIS MI
2004-09-30 906-984-1XXX 1000–1999Assigned 123.NET, LLC 2550 ST IGNACE MI
2004-04-20 906-232-0XXX 0000–0999Assigned 123.NET, LLC 2550 MARQUETTE MI

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.