NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

3 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, 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
2014-11-13 734-235-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 IDA MI
2014-11-13 734-235-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 IDA MI
2014-11-13 734-317-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ERIE MI
2014-11-13 734-317-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ERIE MI
2014-11-13 734-317-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ERIE MI
2014-11-13 734-702-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 WHITMORELK MI
2014-11-13 734-702-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 WHITMORELK MI
2014-11-13 734-702-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 WHITMORELK MI
2014-11-13 734-702-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 WHITMORELK MI
2014-11-13 734-702-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 WHITMORELK MI
2014-11-13 734-702-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 WHITMORELK MI
2014-11-13 734-702-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 WHITMORELK MI
2014-11-13 734-848-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ERIE MI
2014-11-13 734-848-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ERIE MI
2014-11-13 734-849-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 LOSTPNNSUL MI
2014-11-13 734-875-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 LOSTPNNSUL MI
2014-11-13 734-875-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 LOSTPNNSUL MI
2014-11-13 734-875-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 LOSTPNNSUL MI
2014-11-13 734-875-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 LOSTPNNSUL MI
2014-10-29 734-324-1XXX 1000–1999Assigned AT&T ENTERPRISES, LLC 516C WYANDOTTE MI
2014-10-29 734-999-1XXX 1000–1999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G YPSILANTI MI
2014-10-21 734-288-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J WYANDOTTE MI
2014-10-21 734-304-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J TRENTON MI
2014-10-16 734-733-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CARLETON MI
2014-10-16 734-733-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CARLETON MI
2014-10-16 734-733-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CARLETON MI
2014-10-02 734-999-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C YPSILANTI MI
2014-10-02 734-999-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C YPSILANTI MI
2014-10-01 734-203-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C NEW BOSTON MI
2014-10-01 734-235-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C IDA MI
2014-10-01 734-265-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MONROE MI
2014-10-01 734-275-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C PINCKNEY MI
2014-10-01 734-304-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C TRENTON MI
2014-10-01 734-304-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C TRENTON MI
2014-10-01 734-639-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MONROE MI
2014-10-01 734-639-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MONROE MI
2014-10-01 734-639-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MONROE MI
2014-10-01 734-838-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C LIVONIA MI
2014-10-01 734-838-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C LIVONIA MI
2014-09-30 734-258-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WYANDOTTE MI
2014-09-30 734-286-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WYANDOTTE MI
2014-09-30 734-585-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 ANN ARBOR MI
2014-09-30 734-639-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MONROE MI
2014-09-25 734-530-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C WYANDOTTE MI
2014-09-25 734-530-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C WYANDOTTE MI
2014-09-24 734-725-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C WAYNE MI
2014-09-24 734-725-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C WAYNE MI
2014-09-18 734-274-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANN ARBOR MI
2014-09-18 734-436-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANN ARBOR MI
2014-09-18 734-780-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANN ARBOR 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.