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
2009-02-16 920-689-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BURNETT WI
2009-02-05 920-860-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MANITOWOC WI
2008-12-31 920-886-4XXX 4000–4999Assigned TDS METROCOM, LLC 520K NEENAH WI
2008-12-23 920-273-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J FONDDU LAC WI
2008-12-09 920-304-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 KEWAUNEE WI
2008-12-09 920-365-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 ALGOMA WI
2008-12-04 920-917-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SHEBOYGAN WI
2008-11-20 920-358-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C APPLETON WI
2008-11-20 920-412-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 GREEN BAY WI
2008-11-20 920-744-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C OSHKOSH WI
2008-11-20 920-744-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C OSHKOSH WI
2008-11-14 920-809-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 APPLETON WI
2008-11-14 920-809-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 APPLETON WI
2008-11-14 920-853-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K HILBERT WI
2008-11-12 920-372-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 KAUKAUNA WI
2008-11-07 920-397-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 FTATKINSON WI
2008-11-06 920-550-5XXX 5000–5999Assigned WISCONSIN BELL INC 9327 SHEBOGNFLS WI
2008-10-27 920-368-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F NEOSHO WI
2008-10-27 920-550-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F SHEBOGNFLS WI
2008-10-27 920-838-0XXX 0000–0999Assigned UNITED STATES CELLULAR - WI 6274 PLYMOUTH WI
2008-10-24 920-240-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F WAUTOMA WI
2008-10-24 920-345-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F WAUPUN WI
2008-10-24 920-358-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F APPLETON WI
2008-10-24 920-657-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F TWO RIVERS WI
2008-10-24 920-732-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F WHITELAW WI
2008-10-23 920-215-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F NEENAH WI
2008-10-23 920-266-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F FONDDU LAC WI
2008-10-23 920-286-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F KIEL WI
2008-10-23 920-319-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F BEAVER DAM WI
2008-10-23 920-320-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MANITOWOC WI
2008-10-23 920-341-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F CLYMAN WI
2008-10-23 920-346-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F BRANDON WI
2008-10-23 920-349-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F HUSTISFORD WI
2008-10-23 920-350-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F COLUMBUS WI
2008-10-23 920-354-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F BERLIN WI
2008-10-23 920-385-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F OSHKOSH WI
2008-10-23 920-389-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F NEW LONDON WI
2008-10-23 920-397-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F FTATKINSON WI
2008-10-23 920-398-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MARKESAN WI
2008-10-23 920-403-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F DE PERE WI
2008-10-23 920-418-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F CHILTON WI
2008-10-23 920-443-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F REEDSVILLE WI
2008-10-23 920-474-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MAPLETON WI
2008-10-23 920-523-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F CASCADE WI
2008-10-23 920-524-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F BRILLION WI
2008-10-23 920-526-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F GREENBUSH WI
2008-10-23 920-543-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F BURNETT WI
2008-10-23 920-564-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F OOSTBURG WI
2008-10-23 920-624-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F ST CLOUD WI
2008-10-23 920-644-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MAYVILLE 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.