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
2020-12-11 947-228-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C FARMINGTON MI
2020-12-11 947-228-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C FARMINGTON MI
2020-12-11 947-228-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C FARMINGTON MI
2020-12-11 947-228-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C FARMINGTON MI
2020-12-11 947-229-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 CLARKSTON MI
2020-12-11 947-229-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 CLARKSTON MI
2020-12-11 947-229-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 CLARKSTON MI
2020-12-11 947-229-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 CLARKSTON MI
2020-12-11 947-237-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C BIRMINGHAM MI
2020-12-11 947-237-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C BIRMINGHAM MI
2020-12-11 947-237-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C BIRMINGHAM MI
2020-12-11 947-237-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C BIRMINGHAM MI
2020-12-11 947-237-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C BIRMINGHAM MI
2020-12-08 947-237-9XXX 9000–9999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G BIRMINGHAM MI
2020-12-07 947-300-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 CLARKSTON MI
2020-12-07 947-300-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 CLARKSTON MI
2020-12-07 947-300-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 CLARKSTON MI
2020-12-03 947-600-8XXX 8000–8999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G NORTHVILLE MI
2020-11-27 947-227-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C WALLEDLAKE MI
2020-11-27 947-227-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C WALLEDLAKE MI
2020-11-19 947-223-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C COMMERCE MI
2020-11-19 947-223-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C COMMERCE MI
2020-11-18 947-228-2XXX 2000–2999Assigned VONAGE AMERICA LLC 197D FARMINGTON MI
2020-11-18 947-228-6XXX 6000–6999Assigned VONAGE AMERICA LLC 197D FARMINGTON MI
2020-11-18 947-400-9XXX 9000–9999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G W BLOOMFLD MI
2020-11-11 947-224-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2020-11-10 947-225-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E HOLLY MI
2020-11-10 947-225-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E HOLLY MI
2020-11-10 947-237-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 BIRMINGHAM MI
2020-11-04 947-941-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C ROYAL OAK MI
2020-11-04 947-941-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C ROYAL OAK MI
2020-11-04 947-941-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C ROYAL OAK MI
2020-11-04 947-941-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C ROYAL OAK MI
2020-10-30 947-957-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PONTIAC MI
2020-10-30 947-957-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PONTIAC MI
2020-10-29 947-224-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E SOUTHFIELD MI
2020-10-19 947-219-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J BIRMINGHAM MI
2020-10-19 947-219-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BIRMINGHAM MI
2020-10-15 947-221-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C DRAYTON PL MI
2020-10-15 947-221-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C DRAYTON PL MI
2020-10-15 947-400-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C W BLOOMFLD MI
2020-10-15 947-400-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C W BLOOMFLD MI
2020-10-15 947-941-3XXX 3000–3999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G ROYAL OAK MI
2020-09-29 947-223-0XXX 0000–0999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G COMMERCE MI
2020-09-29 947-225-0XXX 0000–0999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G HOLLY MI
2020-09-29 947-300-9XXX 9000–9999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G CLARKSTON MI
2020-09-22 947-228-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FARMINGTON MI
2020-09-21 947-600-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C NORTHVILLE MI
2020-09-21 947-600-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C NORTHVILLE MI
2020-09-21 947-957-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C 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.