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
2004-06-18 262-200-3XXX 3000–3999Assigned WISCONSIN BELL INC 9327 OCONOMOWOC WI
2004-06-18 262-200-4XXX 4000–4999Assigned WISCONSIN BELL INC 9327 OCONOMOWOC WI
2004-06-18 262-200-5XXX 5000–5999Assigned WISCONSIN BELL INC 9327 OCONOMOWOC WI
2004-06-18 262-200-6XXX 6000–6999Assigned WISCONSIN BELL INC 9327 OCONOMOWOC WI
2004-06-07 262-725-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 DELAVAN WI
2004-06-07 262-806-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 BURLINGTON WI
2004-06-01 262-394-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 WALWORTH WI
2004-06-01 262-458-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 WHITEWATER WI
2004-06-01 262-592-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 EAGLE WI
2004-06-01 262-607-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 WILLIAMSBY WI
2004-06-01 262-684-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 EAST TROY WI
2004-06-01 262-726-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 DARIEN WI
2004-05-05 262-623-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 HUBERTUS WI
2004-04-07 262-536-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K PTWASHIGTN WI
2004-04-07 262-618-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CEDARBURG WI
2004-04-07 262-672-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 RACINE WI
2004-04-07 262-685-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K NEWBURG WI
2004-03-18 262-533-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MERTON WI
2004-03-15 262-355-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 NEWBURG WI
2004-03-15 262-423-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 JACKSON WI
2004-03-09 262-565-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUKESHA WI
2004-03-09 262-565-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUKESHA WI
2004-02-13 262-672-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 RACINE WI
2004-02-10 262-701-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 PEWAUKEE WI
2004-02-10 262-701-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 PEWAUKEE WI
2004-02-02 262-573-0XXX 0000–0999Assigned METROPCS, INC. 5562 WEST BEND WI
2004-01-07 262-364-6XXX 6000–6999Assigned UNITED STATES CELLULAR - WI 6274 MILWAUKZN2 WI
2004-01-07 262-364-7XXX 7000–7999Assigned UNITED STATES CELLULAR - WI 6274 MILWAUKZN2 WI
2004-01-07 262-364-8XXX 8000–8999Assigned UNITED STATES CELLULAR - WI 6274 MILWAUKZN2 WI
2004-01-07 262-364-9XXX 9000–9999Assigned UNITED STATES CELLULAR - WI 6274 MILWAUKZN2 WI
2003-11-07 262-960-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KENOSHA WI
2003-09-23 262-565-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUKESHA WI
2003-09-22 262-994-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RACINE WI
2003-09-22 262-994-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RACINE WI
2003-09-22 262-994-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RACINE WI
2003-09-22 262-994-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RACINE WI
2003-09-22 262-994-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RACINE WI
2003-07-29 262-292-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 THIENSVL WI
2003-07-29 262-293-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MENOMONFLS WI
2003-05-12 262-623-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 HUBERTUS WI
2003-03-31 262-364-1XXX 1000–1999Assigned LEVEL 3 TELECOM OF WISCONSIN, LP - WI 7322 MILWAUKZN2 WI
2003-03-31 262-364-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF WISCONSIN, LP - WI 7322 MILWAUKZN2 WI
2003-03-31 262-364-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF WISCONSIN, LP - WI 7322 MILWAUKZN2 WI
2003-02-26 262-421-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 CEDARBURG WI
2003-02-26 262-891-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 BRISTOL WI
2003-02-26 262-910-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 BIG BEND WI
2002-12-23 262-565-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 WAUKESHA WI
2002-12-23 262-649-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MILWAUKZN2 WI
2002-09-17 262-408-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K WAUKESHA 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.