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
2016-04-29 947-200-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C ORTONVILLE MI
2016-04-29 947-666-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C MILFDWH LK MI
2016-04-29 947-666-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C MILFDWH LK MI
2016-04-29 947-666-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C MILFDWH LK MI
2016-04-29 947-666-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C MILFDWH LK MI
2016-04-29 947-666-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C MILFDWH LK MI
2016-04-26 947-999-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C PONTIAC MI
2016-04-22 947-222-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C DRAYTON PL MI
2016-04-22 947-222-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C DRAYTON PL MI
2016-04-22 947-222-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C DRAYTON PL MI
2016-04-22 947-333-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C LAKE ORION MI
2016-04-22 947-333-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C LAKE ORION MI
2016-04-22 947-333-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C LAKE ORION MI
2016-04-22 947-800-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C COMMERCE MI
2016-04-22 947-800-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C COMMERCE MI
2016-04-22 947-800-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C COMMERCE MI
2016-04-22 947-888-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C CLARKSTON MI
2016-04-22 947-888-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C CLARKSTON MI
2016-04-22 947-888-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C CLARKSTON MI
2016-04-18 947-777-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MILFDWH LK MI
2016-04-11 947-777-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E MILFDWH LK MI
2016-04-04 947-999-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PONTIAC MI
2016-04-04 947-999-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PONTIAC MI
2016-04-04 947-999-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PONTIAC MI
2016-02-26 947-282-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E SOUTHFIELD MI
2016-01-29 947-282-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C SOUTHFIELD MI
2015-12-31 947-333-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C LAKE ORION MI
2015-12-28 947-222-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C DRAYTON PL MI
2015-12-02 947-777-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C MILFDWH LK MI
2015-12-02 947-777-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C MILFDWH LK MI
2015-11-30 947-333-9XXX 9000–9999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G LAKE ORION MI
2015-10-01 947-222-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C DRAYTON PL MI
2015-10-01 947-333-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C LAKE ORION MI
2015-10-01 947-800-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C COMMERCE MI
2015-10-01 947-800-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C COMMERCE MI
2015-10-01 947-999-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C PONTIAC MI
2015-09-14 947-777-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MILFDWH LK MI
2015-09-14 947-777-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MILFDWH LK MI
2015-09-14 947-777-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MILFDWH LK MI
2015-09-14 947-777-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MILFDWH LK MI
2015-08-20 947-888-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C CLARKSTON MI
2015-08-20 947-888-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C CLARKSTON MI
2015-08-20 947-888-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C CLARKSTON MI
2015-06-30 947-282-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J SOUTHFIELD MI
2015-06-18 947-777-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C MILFDWH LK MI
2015-06-18 947-777-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C MILFDWH LK MI
2014-09-03 947-282-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J SOUTHFIELD MI
2014-08-07 947-282-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E SOUTHFIELD MI
2014-08-07 947-517-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SOUTHFIELD MI
2014-08-05 947-282-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C SOUTHFIELD 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.