NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

12 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 608
ONVOY, LLC - WI 6
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 4
NEW CINGULAR WIRELESS PCS, LLC - IL 1
AHOI 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
2021-06-02 608-865-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C GALESVILLE WI
2021-05-28 608-895-8XXX 8000–8999Assigned TWILIO INTERNATIONAL, INC. 506J MADISON WI
2021-05-27 608-398-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MADISON WI
2021-05-27 608-398-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MADISON WI
2021-05-27 608-398-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MADISON WI
2021-05-27 608-398-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MADISON WI
2021-05-27 608-398-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MADISON WI
2021-05-26 608-300-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H BLANCHADVL WI
2021-05-26 608-315-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H TOMAH WI
2021-05-26 608-319-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H DODGEVILLE WI
2021-05-26 608-336-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H MONROE WI
2021-05-26 608-384-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H MINERAL PT WI
2021-05-26 608-389-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H BARABOO WI
2021-05-26 608-401-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H MAZOMANIE WI
2021-05-26 608-454-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H OREGON WI
2021-05-26 608-456-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H ORFORDVL WI
2021-05-26 608-465-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H WOODFORD WI
2021-05-26 608-496-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H CAMBRIDGE WI
2021-05-26 608-544-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H WITWEN WI
2021-05-26 608-549-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H BLOOM CITY WI
2021-05-26 608-564-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H MONROE CTR WI
2021-05-26 608-583-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H LONE ROCK WI
2021-05-26 608-585-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H ITHACA WI
2021-05-26 608-591-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H LODI WI
2021-05-26 608-593-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H REEDSBURG WI
2021-05-26 608-594-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H PLAIN WI
2021-05-26 608-597-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H MCFARLAND WI
2021-05-26 608-599-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H JUDA WI
2021-05-26 608-600-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H CLINTON WI
2021-05-26 608-602-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H WAUNAKEE WI
2021-05-26 608-605-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H KENDALL WI
2021-05-26 608-610-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H LIME RIDGE WI
2021-05-26 608-623-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H COBB WI
2021-05-26 608-650-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H NECEDAH WI
2021-05-26 608-653-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H VERONA WI
2021-05-26 608-655-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H MARSHALL WI
2021-05-26 608-666-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H LYNDON STA WI
2021-05-26 608-680-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H BROOKLYN WI
2021-05-26 608-684-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H FOOTVILLE WI
2021-05-26 608-686-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H PORTAGE WI
2021-05-26 608-691-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H MT VERNON WI
2021-05-26 608-694-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H COTTAGEGRV WI
2021-05-26 608-705-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H BROWNTOWN WI
2021-05-26 608-708-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H DEERFIELD WI
2021-05-26 608-717-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H NO FREEDOM WI
2021-05-26 608-730-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H STOUGHTON WI
2021-05-26 608-746-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H JANESVILLE WI
2021-05-26 608-753-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H ARENA WI
2021-05-26 608-766-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H ELROY WI
2021-05-26 608-773-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H CROSS PL WI

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.