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
2023-03-23 947-253-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SOUTHFIELD MI
2023-03-16 947-253-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C SOUTHFIELD MI
2023-03-06 947-223-7XXX 7000–7999Assigned METROPCS, INC. 5562 COMMERCE MI
2023-03-03 947-262-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 AUBURN HTS MI
2023-03-03 947-262-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 AUBURN HTS MI
2023-02-23 947-436-3XXX 3000–3999Assigned METROPCS, INC. 5562 TROY MI
2023-02-22 947-837-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C W BLOOMFLD MI
2023-02-22 947-837-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C W BLOOMFLD MI
2023-02-22 947-837-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C W BLOOMFLD MI
2023-02-16 947-366-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FARMINGTON MI
2023-02-16 947-944-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FARMINGTON MI
2023-02-16 947-944-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FARMINGTON MI
2023-02-10 947-262-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C AUBURN HTS MI
2023-01-30 947-260-4XXX 4000–4999Assigned BOOST SUBSCRIBERCO L.L.C. 490J BIRMINGHAM MI
2023-01-23 947-242-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C W BLOOMFLD MI
2023-01-23 947-242-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C W BLOOMFLD MI
2023-01-23 947-245-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J DRAYTON PL MI
2023-01-11 947-236-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C ROCHESTER MI
2023-01-11 947-236-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C ROCHESTER MI
2023-01-11 947-236-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C ROCHESTER MI
2023-01-11 947-243-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C TROY MI
2023-01-11 947-243-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C TROY MI
2023-01-11 947-243-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C TROY MI
2023-01-11 947-257-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C PONTIAC MI
2023-01-11 947-257-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C PONTIAC MI
2023-01-11 947-813-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C NORTHVILLE MI
2023-01-11 947-813-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C NORTHVILLE MI
2022-12-16 947-247-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOLLY MI
2022-12-13 947-254-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FARMINGTON MI
2022-12-13 947-254-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FARMINGTON MI
2022-12-13 947-254-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FARMINGTON MI
2022-12-08 947-243-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TROY MI
2022-12-05 947-253-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C SOUTHFIELD MI
2022-12-05 947-253-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C SOUTHFIELD MI
2022-12-05 947-260-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2022-12-05 947-260-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2022-12-05 947-260-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2022-12-05 947-260-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2022-12-05 947-260-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2022-12-05 947-261-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2022-12-05 947-261-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2022-12-05 947-261-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2022-12-05 947-529-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BIRMINGHAM MI
2022-12-02 947-230-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ROYAL OAK MI
2022-12-01 947-256-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MILFDWH LK MI
2022-12-01 947-256-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MILFDWH LK MI
2022-12-01 947-256-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MILFDWH LK MI
2022-12-01 947-256-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MILFDWH LK MI
2022-12-01 947-256-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MILFDWH LK MI
2022-12-01 947-256-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MILFDWH LK 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.