NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 734
123.NET, LLC 28
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
2019-08-21 734-492-1XXX 1000–1999Assigned 123.NET, LLC 2550 ANN ARBOR MI
2019-05-15 734-897-1XXX 1000–1999Assigned 123.NET, LLC 2550 FLAT ROCK MI
2019-04-30 734-212-9XXX 9000–9999Assigned 123.NET, LLC 2550 MANCHESTER MI
2013-04-05 734-545-7XXX 7000–7999Assigned 123.NET, LLC 2550 ANN ARBOR MI
2012-11-06 734-969-8XXX 8000–8999Assigned 123.NET, LLC 2550 ROCKWOOD MI
2012-04-16 734-669-3XXX 3000–3999Assigned 123.NET, LLC 2550 ANN ARBOR MI
2011-09-02 734-247-8XXX 8000–8999Assigned 123.NET, LLC 2550 ROMULUS MI
2007-04-27 734-369-9XXX 9000–9999Assigned 123.NET, LLC 2550 ANN ARBOR MI
2006-03-28 734-738-0XXX 0000–0999Assigned 123.NET, LLC 2550 PLYMOUTH MI
2006-03-24 734-424-5XXX 5000–5999Assigned 123.NET, LLC 2550 DEXTER MI
2006-03-24 734-433-5XXX 5000–5999Assigned 123.NET, LLC 2550 CHELSEA MI
2003-02-12 734-954-6XXX 6000–6999Assigned 123.NET, LLC 2550 PINCKNEY MI
2003-01-02 734-206-5XXX 5000–5999Assigned 123.NET, LLC 2550 TEMPERANCE MI
2003-01-02 734-225-2XXX 2000–2999Assigned 123.NET, LLC 2550 WYANDOTTE MI
2003-01-02 734-244-0XXX 0000–0999Assigned 123.NET, LLC 2550 MONROE MI
2003-01-02 734-245-4XXX 4000–4999Assigned 123.NET, LLC 2550 LIVONIA MI
2003-01-02 734-269-0XXX 0000–0999Assigned 123.NET, LLC 2550 IDA MI
2003-01-02 734-272-0XXX 0000–0999Assigned 123.NET, LLC 2550 ANN ARBOR MI
2003-01-02 734-295-9XXX 9000–9999Assigned 123.NET, LLC 2550 SALINE MI
2003-01-02 734-317-1XXX 1000–1999Assigned 123.NET, LLC 2550 ERIE MI
2003-01-02 734-364-1XXX 1000–1999Assigned 123.NET, LLC 2550 MAYBEE MI
2003-01-02 734-365-8XXX 8000–8999Assigned 123.NET, LLC 2550 TRENTON MI
2003-01-02 734-375-8XXX 8000–8999Assigned 123.NET, LLC 2550 GREGORY MI
2003-01-02 734-390-9XXX 9000–9999Assigned 123.NET, LLC 2550 YPSILANTI MI
2003-01-02 734-405-7XXX 7000–7999Assigned 123.NET, LLC 2550 WAYNE MI
2003-01-02 734-443-0XXX 0000–0999Assigned 123.NET, LLC 2550 NEW BOSTON MI
2003-01-02 734-823-2XXX 2000–2999Assigned 123.NET, LLC 2550 DUNDEE MI
2003-01-02 734-854-0XXX 0000–0999Assigned 123.NET, LLC 2550 LAMBERTVL MI

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.