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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2021-03-09 947-235-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2021-03-09 947-235-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2021-03-09 947-235-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2021-03-04 947-366-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J FARMINGTON MI
2021-02-25 947-218-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C TROY MI
2021-02-25 947-234-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C SOUTHFIELD MI
2021-02-25 947-234-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C SOUTHFIELD MI
2021-02-25 947-234-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C SOUTHFIELD MI
2021-02-25 947-622-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C LAKE ORION MI
2021-02-25 947-622-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C LAKE ORION MI
2021-02-23 947-233-9XXX 9000–9999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G NORTHVILLE MI
2021-02-22 947-345-6XXX 6000–6999Assigned FRACTEL, LLC 965H OXFORD MI
2021-02-12 947-244-9XXX 9000–9999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G ORTONVILLE MI
2021-01-27 947-479-9XXX 9000–9999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G ROCHESTER MI
2021-01-13 947-272-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C PONTIAC MI
2021-01-13 947-272-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C PONTIAC MI
2021-01-13 947-272-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C PONTIAC MI
2021-01-13 947-272-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C PONTIAC MI
2021-01-13 947-272-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C PONTIAC MI
2021-01-13 947-272-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C PONTIAC MI
2021-01-13 947-272-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C PONTIAC MI
2021-01-13 947-272-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C PONTIAC MI
2021-01-13 947-272-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C PONTIAC MI
2021-01-13 947-272-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C PONTIAC MI
2021-01-12 947-203-6XXX 6000–6999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G OXFORD MI
2021-01-11 947-234-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2021-01-11 947-234-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2021-01-11 947-234-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2021-01-06 947-244-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C ORTONVILLE MI
2021-01-06 947-244-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C ORTONVILLE MI
2021-01-06 947-244-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C ORTONVILLE MI
2021-01-06 947-244-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C ORTONVILLE MI
2021-01-04 947-226-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C AUBURN HTS MI
2021-01-04 947-226-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C AUBURN HTS MI
2021-01-04 947-226-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C AUBURN HTS MI
2020-12-28 947-228-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J FARMINGTON MI
2020-12-28 947-228-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J FARMINGTON MI
2020-12-22 947-232-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C PONTIAC MI
2020-12-22 947-232-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C PONTIAC MI
2020-12-22 947-233-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 NORTHVILLE MI
2020-12-22 947-234-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SOUTHFIELD MI
2020-12-21 947-232-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PONTIAC MI
2020-12-21 947-232-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PONTIAC MI
2020-12-18 947-479-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C ROCHESTER MI
2020-12-18 947-479-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C ROCHESTER MI
2020-12-18 947-479-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C ROCHESTER MI
2020-12-18 947-479-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C ROCHESTER MI
2020-12-18 947-479-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C ROCHESTER MI
2020-12-11 947-224-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C SOUTHFIELD MI
2020-12-11 947-228-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C FARMINGTON 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.