NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

14 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 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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2023-07-14 810-727-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C DAVISON MI
2023-07-14 810-727-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C DAVISON MI
2023-07-12 810-382-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FLINT MI
2023-07-07 810-425-4XXX 4000–4999Assigned TERRA NOVA TELECOM INC. 145J PT SANILAC MI
2023-06-29 810-642-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J SMITHS CRK MI
2023-06-22 810-318-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C LAPEER MI
2023-06-22 810-319-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C RANKIN MI
2023-06-22 810-382-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C FLINT MI
2023-06-22 810-382-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C FLINT MI
2023-06-22 810-382-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C FLINT MI
2023-06-21 810-215-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C FENTON MI
2023-06-21 810-264-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C MEMPHIS MI
2023-06-21 810-286-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C NORTH BRCH MI
2023-06-21 810-306-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C BRIGHTON MI
2023-06-21 810-317-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-06-21 810-317-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-06-21 810-584-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C GRANDBLANC MI
2023-06-20 810-260-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-06-20 810-260-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-06-20 810-307-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-06-20 810-307-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-06-20 810-307-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-06-20 810-307-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-06-12 810-638-1XXX 1000–1999Assigned BOOST SUBSCRIBERCO L.L.C. 490J NEWLOTHROP MI
2023-06-05 810-776-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C FLINT MI
2023-06-05 810-880-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C FLINT MI
2023-05-18 810-715-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FLINT MI
2023-05-10 810-638-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K NEWLOTHROP MI
2023-05-09 810-283-1XXX 1000–1999Assigned BOOST SUBSCRIBERCO L.L.C. 490J JEDDO MI
2023-04-20 810-200-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-04-20 810-200-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-04-20 810-200-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-04-20 810-260-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-04-20 810-307-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-04-20 810-307-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-04-20 810-307-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-04-20 810-307-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-04-20 810-307-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-04-20 810-895-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-04-06 810-417-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 IMLAY CITY MI
2023-04-06 810-417-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 IMLAY CITY MI
2023-03-29 810-261-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J RANKIN MI
2023-03-22 810-496-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FLINT MI
2023-03-15 810-306-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BRIGHTON MI
2023-03-15 810-306-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BRIGHTON MI
2023-03-15 810-306-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BRIGHTON MI
2023-03-02 810-331-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J ALMONT MI
2023-02-16 810-200-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-02-16 810-200-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER MI
2023-02-16 810-200-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAPEER 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.