NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

14 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 810
NEW CINGULAR WIRELESS PCS, LLC - IL 13
EXIANT COMMUNICATIONS LLC 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
2023-12-05 810-818-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 MONTROSE MI
2023-11-17 810-306-4XXX 4000–4999Assigned NUSO, LLC 732J BRIGHTON MI
2023-11-17 810-306-5XXX 5000–5999Assigned NUSO, LLC 732J BRIGHTON MI
2023-11-16 810-218-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PORT HURON MI
2023-10-27 810-298-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-10-27 810-298-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-10-27 810-298-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-10-27 810-298-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-10-27 810-298-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-10-27 810-298-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-10-26 810-318-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-10-26 810-318-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-10-23 810-546-1XXX 1000–1999Assigned COMMIO, LLC 939H CROSWELL MI
2023-10-23 810-546-8XXX 8000–8999Assigned COMMIO, LLC 939H CROSWELL MI
2023-10-23 810-712-5XXX 5000–5999Assigned COMMIO, LLC 939H CROSWELL MI
2023-10-23 810-878-3XXX 3000–3999Assigned COMMIO, LLC 939H CROSWELL MI
2023-10-23 810-878-9XXX 9000–9999Assigned COMMIO, LLC 939H CROSWELL MI
2023-10-16 810-674-1XXX 1000–1999Assigned TERRA NOVA TELECOM INC. 145J APPLEGATE MI
2023-10-12 810-228-6XXX 6000–6999Assigned TERRA NOVA TELECOM INC. 145J FLINT MI
2023-09-11 810-306-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 BRIGHTON MI
2023-09-07 810-382-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FLINT MI
2023-09-07 810-382-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FLINT MI
2023-09-07 810-382-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FLINT MI
2023-09-01 810-218-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 PORT HURON MI
2023-08-30 810-303-1XXX 1000–1999Assigned BOOST SUBSCRIBERCO L.L.C. 490J ALGONAC MI
2023-08-15 810-827-0XXX 0000–0999Assigned METROPCS, INC. 5562 EMMETT MI
2023-08-04 810-215-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C FENTON MI
2023-08-02 810-317-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-08-02 810-317-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-08-02 810-317-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-08-02 810-318-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-08-02 810-318-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-08-02 810-318-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-08-02 810-318-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-08-02 810-318-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-08-02 810-318-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-08-02 810-318-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-07-27 810-317-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-07-27 810-317-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-07-27 810-317-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-07-27 810-317-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-07-27 810-317-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-07-25 810-256-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C METAMORA MI
2023-07-14 810-276-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C PORT HURON MI
2023-07-14 810-276-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C PORT HURON MI
2023-07-14 810-276-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C PORT HURON MI
2023-07-14 810-380-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C FLUSHING MI
2023-07-14 810-727-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C DAVISON MI
2023-07-14 810-727-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C DAVISON MI
2023-07-14 810-727-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C DAVISON MI

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.