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
2022-12-01 947-262-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 AUBURN HTS MI
2022-12-01 947-262-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 AUBURN HTS MI
2022-11-29 947-257-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PONTIAC MI
2022-11-10 947-242-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C W BLOOMFLD MI
2022-11-10 947-813-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NORTHVILLE MI
2022-11-10 947-813-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NORTHVILLE MI
2022-11-09 947-249-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 HOLLY MI
2022-11-08 947-261-0XXX 0000–0999Assigned METROPCS, INC. 5562 BIRMINGHAM MI
2022-11-04 947-261-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2022-11-04 947-261-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2022-11-03 947-334-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2022-11-03 947-529-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2022-11-03 947-529-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2022-11-03 947-529-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2022-10-31 947-529-0XXX 0000–0999Assigned METROPCS, INC. 5562 BIRMINGHAM MI
2022-10-28 947-253-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2022-10-28 947-253-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2022-10-28 947-253-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2022-10-28 947-253-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2022-10-28 947-253-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2022-10-27 947-729-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C ROYAL OAK MI
2022-10-27 947-729-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C ROYAL OAK MI
2022-10-27 947-729-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C ROYAL OAK MI
2022-10-27 947-729-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C ROYAL OAK MI
2022-10-26 947-813-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E NORTHVILLE MI
2022-10-25 947-733-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E DRAYTON PL MI
2022-10-20 947-254-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FARMINGTON MI
2022-10-20 947-254-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FARMINGTON MI
2022-10-12 947-334-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J BIRMINGHAM MI
2022-10-12 947-334-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J BIRMINGHAM MI
2022-10-12 947-334-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J BIRMINGHAM MI
2022-10-12 947-334-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J BIRMINGHAM MI
2022-10-05 947-546-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E WALLEDLAKE MI
2022-10-04 947-256-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MILFDWH LK MI
2022-10-04 947-256-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MILFDWH LK MI
2022-10-04 947-256-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MILFDWH LK MI
2022-10-04 947-256-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MILFDWH LK MI
2022-10-01 947-447-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ROCHESTER MI
2022-10-01 947-447-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ROCHESTER MI
2022-10-01 947-447-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ROCHESTER MI
2022-10-01 947-447-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ROCHESTER MI
2022-10-01 947-447-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ROCHESTER MI
2022-09-29 947-257-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PONTIAC MI
2022-09-29 947-955-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PONTIAC MI
2022-09-29 947-955-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PONTIAC MI
2022-09-21 947-813-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 NORTHVILLE MI
2022-09-21 947-997-9XXX 9000–9999Assigned METROPCS, INC. 5562 SOUTHFIELD MI
2022-09-19 947-254-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 FARMINGTON MI
2022-09-19 947-334-4XXX 4000–4999Assigned METROPCS, INC. 5562 BIRMINGHAM MI
2022-09-16 947-426-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 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.