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
2006-12-12 920-871-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K HILBERT WI
2006-12-07 920-257-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 APPLETON WI
2006-12-06 920-632-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K DE PERE WI
2006-12-06 920-862-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K WEYAUWEGA WI
2006-11-21 920-449-7XXX 7000–7999Assigned FRONTIER NORTH INC. - WI 0886 PLYMOUTH WI
2006-11-21 920-560-5XXX 5000–5999Assigned TDS METROCOM, LLC 520K APPLETON WI
2006-11-21 920-560-6XXX 6000–6999Assigned TDS METROCOM, LLC 520K APPLETON WI
2006-11-21 920-883-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 GREEN BAY WI
2006-11-16 920-266-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 FONDDU LAC WI
2006-11-16 920-392-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BEAVER DAM WI
2006-11-16 920-545-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WATERTOWN WI
2006-11-16 920-860-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MANITOWOC WI
2006-11-16 920-917-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SHEBOYGAN WI
2006-11-14 920-355-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K MAPLETON WI
2006-11-14 920-523-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K CASCADE WI
2006-11-13 920-569-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J GREEN BAY WI
2006-11-09 920-367-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 DENMARK WI
2006-11-01 920-243-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 APPLETON WI
2006-11-01 920-328-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2006-10-18 920-264-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 GREEN BAY WI
2006-10-18 920-264-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 GREEN BAY WI
2006-10-18 920-264-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 GREEN BAY WI
2006-10-17 920-783-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C SHEBOYGAN WI
2006-10-09 920-385-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OSHKOSH WI
2006-10-09 920-883-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 GREEN BAY WI
2006-10-06 920-257-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 APPLETON WI
2006-09-27 920-560-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J APPLETON WI
2006-09-12 920-809-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 APPLETON WI
2006-09-11 920-860-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MANITOWOC WI
2006-09-07 920-328-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2006-09-06 920-645-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MANITOWOC WI
2006-08-31 920-267-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 OSHKOSH WI
2006-08-16 920-257-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 APPLETON WI
2006-08-16 920-257-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 APPLETON WI
2006-08-16 920-883-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 GREEN BAY WI
2006-08-10 920-447-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K RANDOMLAKE WI
2006-08-10 920-668-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K CEDARGROVE WI
2006-08-08 920-266-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FONDDU LAC WI
2006-08-08 920-527-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OSHKOSH WI
2006-08-08 920-675-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JEFFERSON WI
2006-08-07 920-527-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OSHKOSH WI
2006-07-28 920-694-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J SHEBOYGAN WI
2006-07-24 920-276-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 THERESA WI
2006-07-24 920-363-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 BAILEYSHBR WI
2006-07-24 920-365-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 ALGOMA WI
2006-07-20 920-264-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 GREEN BAY WI
2006-07-17 920-527-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OSHKOSH WI
2006-06-21 920-647-0XXX 0000–0999Assigned UNITED STATES CELLULAR - WI 6274 WAUTOMA WI
2006-06-21 920-688-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K VAN DYNE WI
2006-06-16 920-287-1XXX 1000–1999Assigned METROPCS, INC. 5562 SHEBOYGAN 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.