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
2017-09-15 947-414-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PONTIAC MI
2017-09-15 947-414-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PONTIAC MI
2017-09-01 947-252-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 AUBURN HTS MI
2017-08-07 947-201-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J AUBURN HTS MI
2017-07-17 947-201-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUBURN HTS MI
2017-07-17 947-201-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUBURN HTS MI
2017-07-17 947-201-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUBURN HTS MI
2017-07-17 947-201-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUBURN HTS MI
2017-06-30 947-201-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C AUBURN HTS MI
2017-06-29 947-201-8XXX 8000–8999Assigned GRID 4 COMMUNICATIONS, INC. - MI 9714 AUBURN HTS MI
2017-06-29 947-414-8XXX 8000–8999Assigned GRID 4 COMMUNICATIONS, INC. - MI 9714 PONTIAC MI
2017-06-09 947-203-1XXX 1000–1999Assigned METROPCS, INC. 5562 OXFORD MI
2017-06-09 947-203-9XXX 9000–9999Assigned METROPCS, INC. 5562 OXFORD MI
2017-06-02 947-414-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E PONTIAC MI
2017-06-01 947-414-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PONTIAC MI
2017-06-01 947-414-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PONTIAC MI
2017-05-18 947-800-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C COMMERCE MI
2017-05-09 947-800-9XXX 9000–9999Assigned METROPCS, INC. 5562 COMMERCE MI
2017-05-01 947-201-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 AUBURN HTS MI
2017-03-08 947-414-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PONTIAC MI
2017-03-03 947-999-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PONTIAC MI
2017-03-03 947-999-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PONTIAC MI
2017-03-03 947-999-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PONTIAC MI
2017-03-03 947-999-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PONTIAC MI
2016-12-09 947-800-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C COMMERCE MI
2016-10-05 947-222-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C DRAYTON PL MI
2016-08-16 947-888-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 CLARKSTON MI
2016-08-02 947-222-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J DRAYTON PL MI
2016-07-26 947-888-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C CLARKSTON MI
2016-07-25 947-333-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E LAKE ORION MI
2016-07-19 947-200-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ORTONVILLE MI
2016-07-19 947-200-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ORTONVILLE MI
2016-07-19 947-200-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ORTONVILLE MI
2016-07-19 947-200-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ORTONVILLE MI
2016-07-19 947-200-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ORTONVILLE MI
2016-07-19 947-200-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ORTONVILLE MI
2016-07-19 947-666-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 MILFDWH LK MI
2016-07-19 947-666-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 MILFDWH LK MI
2016-07-19 947-666-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 MILFDWH LK MI
2016-07-19 947-666-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 MILFDWH LK MI
2016-07-19 947-666-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 MILFDWH LK MI
2016-06-27 947-222-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C DRAYTON PL MI
2016-06-27 947-888-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C CLARKSTON MI
2016-06-23 947-222-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E DRAYTON PL MI
2016-06-23 947-800-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J COMMERCE MI
2016-06-23 947-888-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E CLARKSTON MI
2016-06-22 947-222-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C DRAYTON PL MI
2016-04-29 947-200-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C ORTONVILLE MI
2016-04-29 947-200-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C ORTONVILLE MI
2016-04-29 947-200-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C ORTONVILLE 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.