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
2006-04-05 262-235-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PTWASHIGTN WI
2006-04-05 262-346-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WEST BEND WI
2006-04-04 262-204-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF WISCONSIN, LP - WI 7322 CEDARBURG WI
2006-03-29 262-204-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C CEDARBURG WI
2006-03-29 262-292-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C THIENSVL WI
2006-03-29 262-324-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C PARKSIDE WI
2006-03-29 262-326-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C NORTH LAKE WI
2006-03-29 262-346-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C WEST BEND WI
2006-03-29 262-354-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C OCONOMOWOC WI
2006-03-29 262-361-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C HARTLAND WI
2006-03-29 262-528-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C MERTON WI
2006-03-29 262-696-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C PEWAUKEE WI
2006-03-23 262-353-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J WEST BEND WI
2006-03-23 262-701-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J PEWAUKEE WI
2006-03-01 262-477-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 KEWASKUM WI
2006-03-01 262-649-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MILWAUKZN2 WI
2006-02-28 262-387-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF WISCONSIN, LP - WI 7322 CEDARBURG WI
2006-02-22 262-373-7XXX 7000–7999Assigned LEVEL 3 TELECOM OF WISCONSIN, LP - WI 7322 MILWAUKZN2 WI
2006-01-30 262-394-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K WALWORTH WI
2006-01-30 262-448-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K TWIN LAKES WI
2006-01-16 262-203-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LAKEGENEVA WI
2006-01-16 262-295-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GENOA CITY WI
2006-01-16 262-354-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K OCONOMOWOC WI
2006-01-16 262-458-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K WHITEWATER WI
2006-01-16 262-607-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K WILLIAMSBY WI
2006-01-16 262-725-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K DELAVAN WI
2006-01-13 262-247-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WEST BEND WI
2006-01-13 262-682-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF WISCONSIN, LP - WI 7322 MUSKEGO WI
2006-01-12 262-313-7XXX 7000–7999Assigned UNITED STATES CELLULAR - WI 6274 HARTLAND WI
2006-01-12 262-313-8XXX 8000–8999Assigned UNITED STATES CELLULAR - WI 6274 HARTLAND WI
2006-01-12 262-355-5XXX 5000–5999Assigned UNITED STATES CELLULAR - WI 6274 NEWBURG WI
2006-01-12 262-355-6XXX 6000–6999Assigned UNITED STATES CELLULAR - WI 6274 NEWBURG WI
2006-01-12 262-470-9XXX 9000–9999Assigned UNITED STATES CELLULAR - WI 6274 NO PRAIRIE WI
2006-01-12 262-506-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUKESHA WI
2006-01-12 262-506-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUKESHA WI
2005-12-30 262-458-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 WHITEWATER WI
2005-12-27 262-613-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WAUKESHA WI
2005-12-27 262-721-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 RACINE WI
2005-12-27 262-751-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 WAUKESHA WI
2005-12-19 262-394-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 WALWORTH WI
2005-12-19 262-423-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 JACKSON WI
2005-12-13 262-305-9XXX 9000–9999Assigned UNITED STATES CELLULAR - WI 6274 JACKSON WI
2005-12-08 262-324-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 PARKSIDE WI
2005-12-08 262-558-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 UNIONGROVE WI
2005-12-08 262-584-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 SOMERS WI
2005-12-07 262-264-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 PEWAUKEE WI
2005-12-07 262-314-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 SUSSEX WI
2005-12-07 262-326-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 NORTH LAKE WI
2005-12-07 262-465-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MUSKEGO WI
2005-12-07 262-912-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 HARTLAND 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.