NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

8 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 3
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
2016-04-13 920-269-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 LOMIRA WI
2016-04-06 920-391-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K GREEN BAY WI
2016-03-29 920-521-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 NEENAH WI
2016-03-29 920-939-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K APPLETON WI
2016-03-25 920-335-0XXX 0000–0999Assigned ONVOY, LLC - WI 225C SHEBOGNFLS WI
2016-03-25 920-335-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C SHEBOGNFLS WI
2016-03-25 920-717-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C MANITOWOC WI
2016-03-25 920-717-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C MANITOWOC WI
2016-03-25 920-945-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 LAKE MILLS WI
2016-03-22 920-226-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SHEBOYGAN WI
2016-03-22 920-226-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SHEBOYGAN WI
2016-03-21 920-709-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 JUNEAU WI
2016-03-21 920-845-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LUXEMBURG WI
2016-03-17 920-473-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C STURGEONBY WI
2016-03-17 920-473-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C STURGEONBY WI
2016-03-16 920-352-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C VAN DYNE WI
2016-03-16 920-352-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C VAN DYNE WI
2016-03-15 920-250-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C NEW LONDON WI
2016-03-15 920-250-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C NEW LONDON WI
2016-03-15 920-280-0XXX 0000–0999Assigned ONVOY, LLC - WI 225C LTL CHUTE WI
2016-03-15 920-280-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C LTL CHUTE WI
2016-03-15 920-310-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C KEWAUNEE WI
2016-03-15 920-310-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C KEWAUNEE WI
2016-03-15 920-453-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K SHEBOYGAN WI
2016-03-15 920-658-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C OMRO WI
2016-03-15 920-685-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C OMRO WI
2016-03-15 920-706-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C WINNECONNE WI
2016-03-15 920-706-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C WINNECONNE WI
2016-03-15 920-709-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C JUNEAU WI
2016-03-15 920-709-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C JUNEAU WI
2016-03-15 920-764-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C WRIGHTSTN WI
2016-03-15 920-764-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C WRIGHTSTN WI
2016-03-14 920-541-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C JEFFERSON WI
2016-03-14 920-541-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C JEFFERSON WI
2016-03-09 920-949-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C KAUKAUNA WI
2016-03-09 920-949-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C KAUKAUNA WI
2016-03-07 920-214-0XXX 0000–0999Assigned ONVOY, LLC - WI 225C MAYVILLE WI
2016-03-07 920-214-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C MAYVILLE WI
2016-03-07 920-689-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C BURNETT WI
2016-03-07 920-689-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C BURNETT WI
2016-03-07 920-710-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C HORTONVL WI
2016-03-07 920-710-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C HORTONVL WI
2016-03-07 920-786-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C HORICON WI
2016-03-07 920-786-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C HORICON WI
2016-03-07 920-880-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C ALGOMA WI
2016-03-07 920-880-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C ALGOMA WI
2016-03-04 920-335-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C SHEBOGNFLS WI
2016-03-04 920-335-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C SHEBOGNFLS WI
2016-03-04 920-345-0XXX 0000–0999Assigned ONVOY, LLC - WI 225C WAUPUN WI
2016-03-04 920-345-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C WAUPUN 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.