NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

16 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 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
2005-02-04 262-435-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 NO ANTIOCH WI
2005-02-04 262-435-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 NO ANTIOCH WI
2005-02-03 262-456-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K RACINE WI
2005-02-01 262-305-8XXX 8000–8999Assigned UNITED STATES CELLULAR - WI 6274 JACKSON WI
2005-01-14 262-293-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MENOMONFLS WI
2005-01-06 262-292-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 THIENSVL WI
2005-01-04 262-293-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MENOMONFLS WI
2004-12-21 262-910-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 BIG BEND WI
2004-12-20 262-672-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 RACINE WI
2004-12-13 262-951-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 WAUKESHA WI
2004-12-02 262-244-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J OCONOMOWOC WI
2004-12-01 262-347-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUKESHA WI
2004-12-01 262-347-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUKESHA WI
2004-12-01 262-347-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUKESHA WI
2004-12-01 262-347-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUKESHA WI
2004-12-01 262-910-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 BIG BEND WI
2004-11-24 262-672-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 RACINE WI
2004-11-23 262-672-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 RACINE WI
2004-11-19 262-510-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 WAUKESHA WI
2004-11-11 262-228-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 CEDARBURG WI
2004-11-11 262-456-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 RACINE WI
2004-10-20 262-264-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 PEWAUKEE WI
2004-10-20 262-314-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 SUSSEX WI
2004-10-20 262-320-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 CALEDONIA WI
2004-10-20 262-324-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 PARKSIDE WI
2004-10-20 262-326-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 NORTH LAKE WI
2004-10-20 262-465-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MUSKEGO WI
2004-10-20 262-558-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 UNIONGROVE WI
2004-10-20 262-584-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 SOMERS WI
2004-10-12 262-203-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K LAKEGENEVA WI
2004-10-12 262-361-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K HARTLAND WI
2004-10-12 262-643-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K THIENSVL WI
2004-10-12 262-649-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MILWAUKZN2 WI
2004-10-12 262-661-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K BURLINGTON WI
2004-10-12 262-696-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K PEWAUKEE WI
2004-10-12 262-883-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K PARKSIDE WI
2004-10-08 262-671-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 KENOSHA WI
2004-10-06 262-573-2XXX 2000–2999Assigned METROPCS, INC. 5562 WEST BEND WI
2004-09-13 262-754-7XXX 7000–7999Assigned LEVEL 3 TELECOM OF WISCONSIN, LP - WI 7322 MILWAUKZN2 WI
2004-09-03 262-293-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K MENOMONFLS WI
2004-09-03 262-649-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN2 WI
2004-08-09 262-264-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J PEWAUKEE WI
2004-08-03 262-912-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 HARTLAND WI
2004-07-30 262-754-4XXX 4000–4999Assigned TDS METROCOM, LLC 520K MILWAUKZN2 WI
2004-07-15 262-484-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 KENOSHA WI
2004-07-15 262-676-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 RACINE WI
2004-06-22 262-581-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 LAKEGENEVA WI
2004-06-22 262-586-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 SALEM WI
2004-06-22 262-885-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 SILVERLAKE WI
2004-06-18 262-200-2XXX 2000–2999Assigned WISCONSIN BELL INC 9327 OCONOMOWOC WI

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.