NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

16 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 262
ONVOY, LLC - WI 8
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 3
INTRADO COMMUNICATIONS, LLC 2
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 1
T-MOBILE USA, INC. 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
2015-09-10 262-788-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF WISCONSIN, LP - WI 7322 MILWAUKZN2 WI
2015-09-10 262-808-7XXX 7000–7999Assigned UNITED STATES CELLULAR - WI 6274 WEST BEND WI
2015-09-03 262-599-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MILWAUKZN2 WI
2015-09-03 262-599-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MILWAUKZN2 WI
2015-09-01 262-537-1XXX 1000–1999Assigned BURLINGTON, BRIGHTON & WHEATLAND TEL. CO. 0856 WHEATLAND WI
2015-08-28 262-622-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 HUBERTUS WI
2015-08-26 262-732-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J CALEDONIA WI
2015-08-13 262-444-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C WAUKESHA WI
2015-08-13 262-444-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C WAUKESHA WI
2015-08-13 262-444-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C WAUKESHA WI
2015-08-07 262-618-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K CEDARBURG WI
2015-08-06 262-599-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MILWAUKZN2 WI
2015-08-06 262-825-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MILWAUKZN2 WI
2015-07-31 262-233-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K DELAVAN WI
2015-07-21 262-303-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K DELAFIELD WI
2015-07-21 262-788-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN2 WI
2015-07-14 262-214-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F WHITEWATER WI
2015-07-14 262-607-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F WILLIAMSBY WI
2015-07-08 262-239-0XXX 0000–0999Assigned UNITED STATES CELLULAR - WI 6274 HUBERTUS WI
2015-07-08 262-599-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MILWAUKZN2 WI
2015-07-06 262-999-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C MILWAUKZN2 WI
2015-07-06 262-999-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C MILWAUKZN2 WI
2015-07-06 262-999-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C MILWAUKZN2 WI
2015-07-06 262-999-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C MILWAUKZN2 WI
2015-07-06 262-999-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C MILWAUKZN2 WI
2015-06-30 262-333-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C WAUKESHA WI
2015-06-30 262-333-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C WAUKESHA WI
2015-06-30 262-333-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C WAUKESHA WI
2015-06-30 262-333-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C WAUKESHA WI
2015-06-30 262-333-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C WAUKESHA WI
2015-06-25 262-629-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ALLENTON WI
2015-06-25 262-629-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ALLENTON WI
2015-06-24 262-302-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K THIENSVL WI
2015-06-24 262-583-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K RACINE WI
2015-06-18 262-269-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 OCONOMOWOC WI
2015-06-12 262-933-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 WAUKESHA WI
2015-06-11 262-348-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 LAKEGENEVA WI
2015-06-08 262-415-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K MENOMONFLS WI
2015-06-02 262-298-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F TREVOR WI
2015-06-02 262-842-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F KENOSHA WI
2015-05-29 262-842-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K KENOSHA WI
2015-05-29 262-875-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K WAUKESHA WI
2015-05-27 262-895-5XXX 5000–5999Assigned UNITED STATES CELLULAR - WI 6274 WIND LAKE WI
2015-05-26 262-233-0XXX 0000–0999Assigned UNITED STATES CELLULAR - WI 6274 DELAVAN WI
2015-05-26 262-732-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F CALEDONIA WI
2015-05-13 262-788-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C MILWAUKZN2 WI
2015-05-13 262-788-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C MILWAUKZN2 WI
2015-05-13 262-788-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C MILWAUKZN2 WI
2015-05-13 262-999-0XXX 0000–0999Assigned ONVOY, LLC - WI 225C MILWAUKZN2 WI
2015-05-13 262-999-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C MILWAUKZN2 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.