NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

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 810
123.NET, LLC 24
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
2025-02-24 810-332-2XXX 2000–2999Assigned 123.NET, LLC 2550 FLINT MI
2025-02-24 810-332-3XXX 3000–3999Assigned 123.NET, LLC 2550 FLINT MI
2022-06-15 810-776-7XXX 7000–7999Assigned 123.NET, LLC 2550 FLINT MI
2014-12-30 810-445-5XXX 5000–5999Assigned 123.NET, LLC 2550 GRANDBLANC MI
2012-02-13 810-628-6XXX 6000–6999Assigned 123.NET, LLC 2550 SWARTZ CRK MI
2010-07-28 810-346-5XXX 5000–5999Assigned 123.NET, LLC 2550 BROWN CITY MI
2010-03-04 810-793-3XXX 3000–3999Assigned 123.NET, LLC 2550 COLUMBIAVL MI
2006-11-03 810-835-4XXX 4000–4999Assigned 123.NET, LLC 2550 FLINT MI
2003-02-26 810-991-0XXX 0000–0999Assigned 123.NET, LLC 2550 HARTLAND MI
2003-02-13 810-357-0XXX 0000–0999Assigned 123.NET, LLC 2550 PORT HURON MI
2003-02-13 810-373-0XXX 0000–0999Assigned 123.NET, LLC 2550 FENTON MI
2003-02-13 810-375-9XXX 9000–9999Assigned 123.NET, LLC 2550 DRYDEN MI
2003-02-13 810-420-9XXX 9000–9999Assigned 123.NET, LLC 2550 MARINECITY MI
2003-02-13 810-503-1XXX 1000–1999Assigned 123.NET, LLC 2550 DAVISON MI
2003-02-12 810-224-5XXX 5000–5999Assigned 123.NET, LLC 2550 BRIGHTON MI
2003-01-02 810-223-0XXX 0000–0999Assigned 123.NET, LLC 2550 FLINT MI
2003-01-02 810-269-0XXX 0000–0999Assigned 123.NET, LLC 2550 SANDUSKY MI
2003-01-02 810-272-3XXX 3000–3999Assigned 123.NET, LLC 2550 LAPEER MI
2003-01-02 810-377-1XXX 1000–1999Assigned 123.NET, LLC 2550 LEXINGTON MI
2003-01-02 810-387-5XXX 5000–5999Assigned 123.NET, LLC 2550 YALE MI
2003-01-02 810-395-0XXX 0000–0999Assigned 123.NET, LLC 2550 CAPAC MI
2003-01-02 810-442-9XXX 9000–9999Assigned 123.NET, LLC 2550 DECKERVL MI
2003-01-02 810-512-1XXX 1000–1999Assigned 123.NET, LLC 2550 ALGONAC MI
2003-01-02 810-637-3XXX 3000–3999Assigned 123.NET, LLC 2550 ST CLAIR MI

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.