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
2024-02-15 734-932-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 DEXTER MI
2024-02-15 734-932-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 DEXTER MI
2024-02-15 734-967-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 CARLETON MI
2024-02-15 734-967-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 CARLETON MI
2024-02-08 734-360-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 WYANDOTTE MI
2024-02-08 734-360-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 WYANDOTTE MI
2024-02-08 734-570-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 CHELSEA MI
2024-02-07 734-465-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANN ARBOR MI
2024-01-23 734-691-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LIVONIA MI
2024-01-16 734-360-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 WYANDOTTE MI
2024-01-12 734-420-8XXX 8000–8999Assigned TERRA NOVA TELECOM INC. 145J PLYMOUTH MI
2023-12-11 734-603-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROCKWOOD MI
2023-12-11 734-889-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NEW BOSTON MI
2023-12-08 734-850-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 TEMPERANCE MI
2023-12-01 734-937-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 WHITMORELK MI
2023-11-22 734-913-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANN ARBOR MI
2023-11-16 734-360-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 WYANDOTTE MI
2023-11-14 734-575-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WYANDOTTE MI
2023-11-13 734-982-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TRENTON MI
2023-11-06 734-312-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 WAYNE MI
2023-11-06 734-706-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BELLEVILLE MI
2023-10-12 734-866-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J IDA MI
2023-09-29 734-598-9XXX 9000–9999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G MONROE MI
2023-09-27 734-575-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 WYANDOTTE MI
2023-09-27 734-575-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 WYANDOTTE MI
2023-09-18 734-742-9XXX 9000–9999Assigned METROPCS, INC. 5562 LIVONIA MI
2023-09-18 734-937-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J WHITMORELK MI
2023-09-11 734-251-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ANN ARBOR MI
2023-09-11 734-590-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ANN ARBOR MI
2023-08-31 734-598-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 MONROE MI
2023-08-31 734-598-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 MONROE MI
2023-08-31 734-691-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 LIVONIA MI
2023-08-31 734-691-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 LIVONIA MI
2023-08-31 734-691-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 LIVONIA MI
2023-08-30 734-757-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANN ARBOR MI
2023-08-25 734-691-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LIVONIA MI
2023-08-24 734-932-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DEXTER MI
2023-08-09 734-225-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 WYANDOTTE MI
2023-08-09 734-575-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 WYANDOTTE MI
2023-08-08 734-706-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C BELLEVILLE MI
2023-08-02 734-579-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 YPSILANTI MI
2023-08-02 734-706-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 BELLEVILLE MI
2023-08-01 734-590-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ANN ARBOR MI
2023-07-27 734-597-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MONROE MI
2023-07-26 734-251-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C ANN ARBOR MI
2023-07-26 734-251-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C ANN ARBOR MI
2023-07-26 734-251-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C ANN ARBOR MI
2023-07-26 734-251-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C ANN ARBOR MI
2023-07-25 734-833-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C DUNDEE MI
2023-07-20 734-575-7XXX 7000–7999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G WYANDOTTE 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.