NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

29 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 947
NEW CINGULAR WIRELESS PCS, LLC - IL 27
INTRADO COMMUNICATIONS, LLC 1
BANDWIDTH.COM CLEC, LLC - MI 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
2023-09-12 947-268-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FARMINGTON MI
2023-09-12 947-268-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FARMINGTON MI
2023-09-11 947-436-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TROY MI
2023-09-08 947-546-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C WALLEDLAKE MI
2023-08-31 947-257-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PONTIAC MI
2023-08-31 947-257-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PONTIAC MI
2023-08-08 947-426-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SOUTHFIELD MI
2023-08-08 947-997-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SOUTHFIELD MI
2023-08-04 947-262-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C AUBURN HTS MI
2023-08-02 947-436-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TROY MI
2023-07-25 947-258-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C CLARKSTON MI
2023-07-25 947-261-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2023-07-25 947-261-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2023-07-25 947-261-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2023-07-25 947-261-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2023-07-25 947-529-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2023-07-25 947-955-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C PONTIAC MI
2023-07-20 947-362-9XXX 9000–9999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G SOUTH LYON MI
2023-07-14 947-249-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C HOLLY MI
2023-07-14 947-249-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C HOLLY MI
2023-07-14 947-249-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C HOLLY MI
2023-07-14 947-249-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C HOLLY MI
2023-07-14 947-249-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C HOLLY MI
2023-07-14 947-251-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C OXFORD MI
2023-07-14 947-251-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C OXFORD MI
2023-07-14 947-251-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C OXFORD MI
2023-07-14 947-251-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C OXFORD MI
2023-07-14 947-251-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C OXFORD MI
2023-07-14 947-263-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C LAKE ORION MI
2023-07-14 947-263-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C LAKE ORION MI
2023-07-14 947-263-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C LAKE ORION MI
2023-07-14 947-263-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C LAKE ORION MI
2023-07-14 947-263-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C LAKE ORION MI
2023-06-26 947-248-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C ROCHESTER MI
2023-06-26 947-248-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C ROCHESTER MI
2023-06-26 947-265-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C NORTHVILLE MI
2023-06-26 947-265-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C NORTHVILLE MI
2023-06-26 947-266-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C MILFDWH LK MI
2023-06-26 947-266-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C MILFDWH LK MI
2023-06-26 947-267-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C COMMERCE MI
2023-06-23 947-262-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C AUBURN HTS MI
2023-06-23 947-362-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C SOUTH LYON MI
2023-06-23 947-426-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C SOUTHFIELD MI
2023-06-23 947-426-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C SOUTHFIELD MI
2023-06-23 947-436-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C TROY MI
2023-06-23 947-837-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C W BLOOMFLD MI
2023-06-13 947-813-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 NORTHVILLE MI
2023-06-06 947-226-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C AUBURN HTS MI
2023-06-06 947-227-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C WALLEDLAKE MI
2023-06-06 947-230-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C ROYAL OAK 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.