NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

3 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, last 30 days — NPA 734
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 1
EXIANT COMMUNICATIONS LLC 1
AHOI LLC 1
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
2003-08-26 734-295-7XXX 7000–7999Assigned FRONTIER NORTH, INC. - MI 0695 SALINE MI
2003-08-26 734-295-8XXX 8000–8999Assigned FRONTIER NORTH, INC. - MI 0695 SALINE MI
2003-07-08 734-365-3XXX 3000–3999Assigned METROPCS, INC. 5562 TRENTON MI
2003-07-08 734-365-4XXX 4000–4999Assigned METROPCS, INC. 5562 TRENTON MI
2003-05-07 734-823-5XXX 5000–5999Assigned DEERFIELD FARMERS' TELEPHONE COMPANY - MI 558A DUNDEE MI
2003-04-28 734-732-0XXX 0000–0999Assigned METROPCS, INC. 5562 BELLEVILLE MI
2003-04-28 734-732-1XXX 1000–1999Assigned METROPCS, INC. 5562 BELLEVILLE MI
2003-04-28 734-732-2XXX 2000–2999Assigned METROPCS, INC. 5562 BELLEVILLE MI
2003-03-28 734-239-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2003-03-06 734-578-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 WAYNE MI
2003-02-28 734-239-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2003-02-27 734-206-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 TEMPERANCE MI
2003-02-27 734-399-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 MAYBEE MI
2003-02-27 734-403-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 ROMULUS MI
2003-02-21 734-225-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J WYANDOTTE MI
2003-02-21 734-752-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J TRENTON MI
2003-02-12 734-954-6XXX 6000–6999Assigned 123.NET, LLC 2550 PINCKNEY MI
2003-02-06 734-629-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 WAYNE MI
2003-02-04 734-239-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2003-02-04 734-239-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2003-02-04 734-239-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2003-02-04 734-578-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 WAYNE MI
2003-02-04 734-578-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 WAYNE MI
2003-01-15 734-578-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 WAYNE MI
2003-01-15 734-578-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 WAYNE MI
2003-01-15 734-578-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 WAYNE MI
2003-01-15 734-578-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 WAYNE MI
2003-01-09 734-709-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2003-01-09 734-709-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2003-01-09 734-709-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2003-01-09 734-709-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2003-01-09 734-709-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2003-01-08 734-250-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WYANDOTTE MI
2003-01-08 734-295-4XXX 4000–4999Assigned FRONTIER NORTH, INC. - MI 0695 SALINE 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.