NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

9 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 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
2021-06-02 920-741-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C BRUSSELS WI
2021-06-02 920-790-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C NEWFRANKEN WI
2021-06-02 920-790-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C NEWFRANKEN WI
2021-06-02 920-837-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C CASCO WI
2021-06-01 920-276-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H THERESA WI
2021-06-01 920-298-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H TWO RIVERS WI
2021-06-01 920-329-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F GREEN LAKE WI
2021-06-01 920-480-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 GREEN BAY WI
2021-06-01 920-561-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H WATERLOO WI
2021-06-01 920-678-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H ST CLOUD WI
2021-06-01 920-697-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H TISCHMILLS WI
2021-06-01 920-732-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H WHITELAW WI
2021-06-01 920-775-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H VALDERS WI
2021-06-01 920-881-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H ST NAZIANZ WI
2021-06-01 920-941-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H WATERTOWN WI
2021-05-27 920-313-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H LOMIRA WI
2021-05-27 920-326-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H RANDOLPH WI
2021-05-27 920-374-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H MANITOWOC WI
2021-05-27 920-443-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H REEDSVILLE WI
2021-05-27 920-476-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H SHEBOYGAN WI
2021-05-27 920-552-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H OOSTBURG WI
2021-05-27 920-578-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H MARKESAN WI
2021-05-27 920-607-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H CAMPBELSPT WI
2021-05-27 920-614-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H RIO WI
2021-05-27 920-635-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H PLYMOUTH WI
2021-05-27 920-653-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H MAPLETON WI
2021-05-27 920-654-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H MISHICOT WI
2021-05-27 920-656-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H NEOSHO WI
2021-05-27 920-669-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H MAYVILLE WI
2021-05-27 920-753-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H MT CALVARY WI
2021-05-27 920-802-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H SHEBOGNFLS WI
2021-05-27 920-872-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H ROSENDALE WI
2021-05-27 920-898-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H NEWHOLSTEN WI
2021-05-27 920-935-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H PICKETT WI
2021-05-27 920-937-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H OAKFIELD WI
2021-05-27 920-994-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H RANDOMLAKE WI
2021-05-26 920-308-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H FTATKINSON WI
2021-05-26 920-314-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H COLLINS WI
2021-05-26 920-315-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H HUSTISFORD WI
2021-05-26 920-332-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H BRANDON WI
2021-05-26 920-348-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H CAMBRIA WI
2021-05-26 920-409-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H JOHNSONCRK WI
2021-05-26 920-483-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H CHILTON WI
2021-05-26 920-484-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H FALL RIVER WI
2021-05-26 920-520-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H FOX LAKE WI
2021-05-26 920-523-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H CASCADE WI
2021-05-26 920-588-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H BRILLION WI
2021-05-26 920-605-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H JEFFERSON WI
2021-05-26 920-620-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H KINGSTON WI
2021-05-26 920-630-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H COLUMBUS 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.