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
2021-09-13 947-236-1XXX 1000–1999Assigned COMMIO, LLC 939H ROCHESTER MI
2021-09-13 947-237-5XXX 5000–5999Assigned COMMIO, LLC 939H BIRMINGHAM MI
2021-09-13 947-336-7XXX 7000–7999Assigned COMMIO, LLC 939H NORTHVILLE MI
2021-09-13 947-336-9XXX 9000–9999Assigned COMMIO, LLC 939H NORTHVILLE MI
2021-09-13 947-366-2XXX 2000–2999Assigned COMMIO, LLC 939H FARMINGTON MI
2021-09-13 947-366-5XXX 5000–5999Assigned COMMIO, LLC 939H FARMINGTON MI
2021-09-13 947-366-7XXX 7000–7999Assigned COMMIO, LLC 939H FARMINGTON MI
2021-09-13 947-366-9XXX 9000–9999Assigned COMMIO, LLC 939H FARMINGTON MI
2021-09-13 947-447-0XXX 0000–0999Assigned COMMIO, LLC 939H ROCHESTER MI
2021-09-13 947-447-1XXX 1000–1999Assigned COMMIO, LLC 939H ROCHESTER MI
2021-09-13 947-881-9XXX 9000–9999Assigned COMMIO, LLC 939H SOUTHFIELD MI
2021-09-13 947-895-0XXX 0000–0999Assigned COMMIO, LLC 939H SOUTHFIELD MI
2021-09-13 947-895-1XXX 1000–1999Assigned COMMIO, LLC 939H SOUTHFIELD MI
2021-09-13 947-895-9XXX 9000–9999Assigned COMMIO, LLC 939H SOUTHFIELD MI
2021-09-08 947-240-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 W BLOOMFLD MI
2021-09-08 947-240-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 W BLOOMFLD MI
2021-09-08 947-240-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 W BLOOMFLD MI
2021-09-07 947-400-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 W BLOOMFLD MI
2021-09-02 947-336-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 NORTHVILLE MI
2021-09-02 947-336-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 NORTHVILLE MI
2021-08-30 947-366-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FARMINGTON MI
2021-08-30 947-366-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E FARMINGTON MI
2021-08-11 947-224-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SOUTHFIELD MI
2021-08-11 947-235-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SOUTHFIELD MI
2021-08-11 947-235-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 SOUTHFIELD MI
2021-08-03 947-221-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C DRAYTON PL MI
2021-08-03 947-221-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C DRAYTON PL MI
2021-07-26 947-247-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 HOLLY MI
2021-07-22 947-247-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C HOLLY MI
2021-07-22 947-247-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C HOLLY MI
2021-07-06 947-376-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C TROY MI
2021-07-06 947-376-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C TROY MI
2021-07-06 947-376-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C TROY MI
2021-07-06 947-376-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C TROY MI
2021-06-28 947-232-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PONTIAC MI
2021-06-28 947-232-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PONTIAC MI
2021-06-28 947-239-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 CLARKSTON MI
2021-06-28 947-239-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 CLARKSTON MI
2021-06-28 947-239-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 CLARKSTON MI
2021-06-28 947-239-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 CLARKSTON MI
2021-06-28 947-239-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 CLARKSTON MI
2021-06-25 947-229-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 CLARKSTON MI
2021-06-25 947-229-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 CLARKSTON MI
2021-06-23 947-376-5XXX 5000–5999Assigned VONAGE AMERICA LLC 197D TROY MI
2021-06-14 947-247-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C HOLLY MI
2021-06-14 947-247-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C HOLLY MI
2021-06-14 947-348-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C SOUTH LYON MI
2021-06-14 947-348-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C SOUTH LYON MI
2021-06-14 947-348-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C SOUTH LYON MI
2021-06-14 947-348-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C SOUTH LYON 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.