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
2021-11-01 947-238-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2021-10-19 947-242-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C W BLOOMFLD MI
2021-10-19 947-242-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C W BLOOMFLD MI
2021-10-19 947-242-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C W BLOOMFLD MI
2021-10-18 947-239-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C CLARKSTON MI
2021-10-18 947-239-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C CLARKSTON MI
2021-10-18 947-239-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C CLARKSTON MI
2021-10-15 947-729-9XXX 9000–9999Assigned METROPCS, INC. 5562 ROYAL OAK MI
2021-10-15 947-955-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H PONTIAC MI
2021-10-15 947-955-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H PONTIAC MI
2021-10-15 947-955-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H PONTIAC MI
2021-10-15 947-955-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H PONTIAC MI
2021-10-15 947-955-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H PONTIAC MI
2021-10-13 947-223-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COMMERCE MI
2021-10-13 947-227-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 WALLEDLAKE MI
2021-10-13 947-227-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 WALLEDLAKE MI
2021-10-13 947-230-6XXX 6000–6999Assigned METROPCS, INC. 5562 ROYAL OAK MI
2021-10-13 947-941-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ROYAL OAK MI
2021-10-07 947-944-9XXX 9000–9999Assigned METROPCS, INC. 5562 FARMINGTON MI
2021-10-06 947-955-9XXX 9000–9999Assigned METROPCS, INC. 5562 PONTIAC MI
2021-10-05 947-247-2XXX 2000–2999Assigned METROPCS, INC. 5562 HOLLY MI
2021-10-05 947-247-5XXX 5000–5999Assigned METROPCS, INC. 5562 HOLLY MI
2021-10-05 947-247-9XXX 9000–9999Assigned METROPCS, INC. 5562 HOLLY MI
2021-10-05 947-524-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2021-10-05 947-524-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2021-10-05 947-524-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2021-10-05 947-524-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2021-10-05 947-524-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2021-10-05 947-524-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2021-10-05 947-524-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2021-10-05 947-524-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2021-10-05 947-524-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2021-10-05 947-524-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2021-09-24 947-234-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SOUTHFIELD MI
2021-09-24 947-234-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SOUTHFIELD MI
2021-09-24 947-234-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SOUTHFIELD MI
2021-09-17 947-224-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2021-09-17 947-235-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2021-09-17 947-895-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2021-09-17 947-895-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2021-09-17 947-895-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2021-09-17 947-895-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2021-09-17 947-895-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2021-09-17 947-895-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2021-09-13 947-219-8XXX 8000–8999Assigned COMMIO, LLC 939H BIRMINGHAM MI
2021-09-13 947-219-9XXX 9000–9999Assigned COMMIO, LLC 939H BIRMINGHAM MI
2021-09-13 947-232-2XXX 2000–2999Assigned COMMIO, LLC 939H PONTIAC MI
2021-09-13 947-232-3XXX 3000–3999Assigned COMMIO, LLC 939H PONTIAC MI
2021-09-13 947-232-4XXX 4000–4999Assigned COMMIO, LLC 939H PONTIAC MI
2021-09-13 947-236-0XXX 0000–0999Assigned COMMIO, LLC 939H ROCHESTER 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.