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
2018-08-30 947-204-6XXX 6000–6999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G MILFDWH LK MI
2018-08-30 947-252-6XXX 6000–6999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G AUBURN HTS MI
2018-08-29 947-205-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TROY MI
2018-08-29 947-205-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TROY MI
2018-08-29 947-205-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TROY MI
2018-08-29 947-205-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TROY MI
2018-08-29 947-252-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUBURN HTS MI
2018-08-29 947-252-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUBURN HTS MI
2018-08-29 947-252-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUBURN HTS MI
2018-08-29 947-252-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUBURN HTS MI
2018-08-17 947-252-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C AUBURN HTS MI
2018-08-17 947-465-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C COMMERCE MI
2018-08-06 947-886-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E PONTIAC MI
2018-08-06 947-886-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E PONTIAC MI
2018-08-06 947-886-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E PONTIAC MI
2018-08-01 947-333-5XXX 5000–5999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G LAKE ORION MI
2018-06-19 947-886-7XXX 7000–7999Assigned METROPCS, INC. 5562 PONTIAC MI
2018-06-14 947-204-5XXX 5000–5999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G MILFDWH LK MI
2018-06-14 947-252-8XXX 8000–8999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G AUBURN HTS MI
2018-06-08 947-252-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E AUBURN HTS MI
2018-05-22 947-465-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COMMERCE MI
2018-05-22 947-465-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COMMERCE MI
2018-04-18 947-886-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J PONTIAC MI
2018-04-03 947-252-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E AUBURN HTS MI
2018-02-27 947-205-3XXX 3000–3999Assigned CLEAR RATE COMMUNICATIONS, LLC 046L TROY MI
2018-02-20 947-205-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TROY MI
2018-02-20 947-205-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TROY MI
2018-02-20 947-205-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TROY MI
2018-02-15 947-465-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C COMMERCE MI
2018-02-12 947-522-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2018-02-12 947-522-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2018-02-12 947-522-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2018-02-12 947-522-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2018-02-12 947-522-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2018-02-12 947-522-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2018-02-12 947-522-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2018-02-12 947-522-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2018-02-12 947-522-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2018-02-12 947-522-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2018-01-23 947-414-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PONTIAC MI
2018-01-11 947-205-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 TROY MI
2018-01-11 947-205-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 TROY MI
2017-11-02 947-465-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COMMERCE MI
2017-10-30 947-800-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COMMERCE MI
2017-10-26 947-204-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MILFDWH LK MI
2017-10-26 947-204-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MILFDWH LK MI
2017-10-26 947-204-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MILFDWH LK MI
2017-09-18 947-999-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J PONTIAC MI
2017-09-15 947-414-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PONTIAC MI
2017-09-15 947-414-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PONTIAC 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.