NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

9 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 920
ONVOY, LLC - WI 4
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 2
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 1
T-MOBILE USA, INC. 1
INTRADO COMMUNICATIONS, 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
2007-04-05 920-896-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K RIPON WI
2007-04-05 920-938-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K SHIOCTON WI
2007-04-02 920-245-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K WATERTOWN WI
2007-04-02 920-550-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K SHEBOGNFLS WI
2007-03-30 920-809-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 APPLETON WI
2007-03-30 920-809-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 APPLETON WI
2007-03-30 920-809-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 APPLETON WI
2007-03-21 920-626-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 COLUMBUS WI
2007-03-20 920-250-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K NEW LONDON WI
2007-03-20 920-267-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K OSHKOSH WI
2007-03-20 920-286-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K KIEL WI
2007-03-20 920-290-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BERLIN WI
2007-03-20 920-332-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BRANDON WI
2007-03-20 920-464-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CHILTON WI
2007-03-20 920-481-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K PRINCETON WI
2007-03-20 920-524-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BRILLION WI
2007-03-20 920-644-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MAYVILLE WI
2007-03-20 920-706-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K WINNECONNE WI
2007-03-20 920-728-5XXX 5000–5999Assigned UNITED STATES CELLULAR - WI 6274 FTATKINSON WI
2007-03-20 920-779-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K HORTONVL WI
2007-03-20 920-827-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K NEWHOLSTEN WI
2007-03-19 920-809-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 APPLETON WI
2007-03-16 920-953-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K VALDERS WI
2007-03-12 920-278-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DE PERE WI
2007-03-12 920-486-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NEENAH WI
2007-03-09 920-883-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 GREEN BAY WI
2007-03-05 920-443-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K REEDSVILLE WI
2007-02-21 920-349-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 HUSTISFORD WI
2007-02-20 920-782-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K CLEVELAND WI
2007-02-16 920-374-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MANITOWOC WI
2007-02-15 920-445-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2007-02-13 920-364-2XXX 2000–2999Assigned TDS METROCOM, LLC 520K APPLETON WI
2007-02-13 920-364-3XXX 3000–3999Assigned TDS METROCOM, LLC 520K APPLETON WI
2007-02-13 920-364-4XXX 4000–4999Assigned TDS METROCOM, LLC 520K APPLETON WI
2007-02-13 920-364-5XXX 5000–5999Assigned TDS METROCOM, LLC 520K APPLETON WI
2007-02-13 920-364-6XXX 6000–6999Assigned TDS METROCOM, LLC 520K APPLETON WI
2007-02-13 920-364-7XXX 7000–7999Assigned TDS METROCOM, LLC 520K APPLETON WI
2007-02-13 920-364-8XXX 8000–8999Assigned TDS METROCOM, LLC 520K APPLETON WI
2007-02-13 920-560-7XXX 7000–7999Assigned TDS METROCOM, LLC 520K APPLETON WI
2007-02-13 920-560-8XXX 8000–8999Assigned TDS METROCOM, LLC 520K APPLETON WI
2007-02-06 920-287-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K SHEBOYGAN WI
2007-02-06 920-550-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K SHEBOGNFLS WI
2007-02-06 920-625-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K NEOSHO WI
2007-02-05 920-266-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FONDDU LAC WI
2007-02-05 920-883-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 GREEN BAY WI
2007-01-26 920-544-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K GREEN BAY WI
2007-01-19 920-364-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K APPLETON WI
2007-01-18 920-257-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 APPLETON WI
2007-01-15 920-809-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 APPLETON WI
2007-01-04 920-328-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY 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.