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
2020-02-06 608-557-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F WONEWOC WI
2020-02-06 608-892-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F WARRENS WI
2020-02-04 608-400-8XXX 8000–8999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F MADISON WI
2020-02-03 608-737-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F NO FREEDOM WI
2020-02-03 608-795-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MAZOMANIE WI
2020-01-24 608-866-6XXX 6000–6999Assigned TERRA NOVA TELECOM INC. 145J MADISON WI
2020-01-17 608-855-2XXX 2000–2999Assigned MCC TELEPHONY OF THE MIDWEST, LLC - WI 983F SPARTA WI
2020-01-16 608-540-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 HOLMEN WI
2020-01-15 608-614-1XXX 1000–1999Assigned MCC TELEPHONY OF THE MIDWEST, LLC - WI 983F ONTARIO WI
2020-01-15 608-652-1XXX 1000–1999Assigned MCC TELEPHONY OF THE MIDWEST, LLC - WI 983F NORWALK WI
2020-01-15 608-660-1XXX 1000–1999Assigned MCC TELEPHONY OF THE MIDWEST, LLC - WI 983F WILTON WI
2020-01-08 608-684-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K FOOTVILLE WI
2020-01-08 608-938-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MONTICELLO WI
2020-01-07 608-710-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MADISON WI
2019-12-30 608-495-7XXX 7000–7999Assigned UNITED STATES CELLULAR - WI 6274 REEDSBURG WI
2019-12-30 608-933-3XXX 3000–3999Assigned FRACTEL, LLC 965H LYNDON STA WI
2019-12-26 608-503-1XXX 1000–1999Assigned MCC TELEPHONY OF THE MIDWEST, LLC - WI 983F CASHTON WI
2019-12-26 608-631-4XXX 4000–4999Assigned UNITED STATES CELLULAR - WI 6274 BELOIT WI
2019-12-23 608-683-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PORTAGE WI
2019-12-23 608-683-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PORTAGE WI
2019-12-20 608-812-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ARENA WI
2019-12-19 608-600-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 CLINTON WI
2019-12-19 608-631-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C BELOIT WI
2019-12-19 608-631-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C BELOIT WI
2019-12-18 608-912-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 DE FOREST WI
2019-12-16 608-631-2XXX 2000–2999Assigned METROPCS, INC. 5562 BELOIT WI
2019-12-16 608-795-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MAZOMANIE WI
2019-12-11 608-717-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NO FREEDOM WI
2019-12-03 608-607-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C JANESVILLE WI
2019-12-03 608-607-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C JANESVILLE WI
2019-12-03 608-607-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C JANESVILLE WI
2019-11-25 608-610-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LIME RIDGE WI
2019-11-20 608-653-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 VERONA WI
2019-11-19 608-818-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MONTELLO WI
2019-11-18 608-747-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MAUSTON WI
2019-11-14 608-607-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 JANESVILLE WI
2019-11-13 608-540-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOLMEN WI
2019-11-13 608-937-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DODGEVILLE WI
2019-10-28 608-405-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C MADISON WI
2019-10-28 608-716-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C MADISON WI
2019-10-28 608-716-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C MADISON WI
2019-10-28 608-716-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C MADISON WI
2019-10-28 608-867-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C MADISON WI
2019-10-21 608-405-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MADISON WI
2019-10-17 608-710-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MADISON WI
2019-10-17 608-710-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MADISON WI
2019-10-15 608-668-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 LA CROSSE WI
2019-10-10 608-570-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICHLD CTR WI
2019-10-10 608-593-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 REEDSBURG WI
2019-10-09 608-570-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 RICHLD CTR 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.