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
2014-10-23 920-472-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NEW LONDON WI
2014-10-23 920-481-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 PRINCETON WI
2014-10-23 920-487-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ALGOMA WI
2014-10-23 920-516-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OCONTO WI
2014-10-23 920-525-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 NICHOLS WI
2014-10-23 920-536-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 LUXEMBURG WI
2014-10-23 920-566-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 REDGRANITE WI
2014-10-23 920-599-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LENA WI
2014-10-23 920-618-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SURING WI
2014-10-23 920-622-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 WILD ROSE WI
2014-10-23 920-633-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SISTER BAY WI
2014-10-23 920-637-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NEENAH WI
2014-10-23 920-647-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WAUTOMA WI
2014-10-23 920-667-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 READFIELD WI
2014-10-23 920-706-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WINNECONNE WI
2014-10-23 920-710-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HORTONVL WI
2014-10-23 920-741-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 BRUSSELS WI
2014-10-23 920-764-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WRIGHTSTN WI
2014-10-23 920-789-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BERLIN WI
2014-10-23 920-818-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J STURGEONBY WI
2014-10-23 920-823-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 JACKSONPT WI
2014-10-23 920-824-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 LTLSTURGEN WI
2014-10-23 920-836-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 LARSEN WI
2014-10-23 920-837-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 CASCO WI
2014-10-23 920-847-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 WASHIGTNIS WI
2014-10-23 920-855-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GILLETT WI
2014-10-23 920-856-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 FORESTVL WI
2014-10-23 920-859-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 OMRO WI
2014-10-23 920-866-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 NEWFRANKEN WI
2014-10-23 920-868-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J EGG HARBOR WI
2014-10-23 920-896-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J RIPON WI
2014-10-23 920-897-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J COLEMAN WI
2014-10-23 920-938-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 SHIOCTON WI
2014-10-23 920-975-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 WAYSIDE WI
2014-10-23 920-984-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 BLACKCREEK WI
2014-10-23 920-987-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 POY SIPPI WI
2014-10-22 920-770-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K GREEN BAY WI
2014-10-15 920-221-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 APPLETON WI
2014-10-15 920-221-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 APPLETON WI
2014-10-15 920-479-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OSHKOSH WI
2014-10-15 920-479-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OSHKOSH WI
2014-10-14 920-903-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K APPLETON WI
2014-10-06 920-815-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J APPLETON WI
2014-10-03 920-940-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GREEN BAY WI
2014-10-01 920-240-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 WAUTOMA WI
2014-09-30 920-319-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 BEAVER DAM WI
2014-09-30 920-843-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 APPLETON WI
2014-09-26 920-815-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J APPLETON WI
2014-09-25 920-249-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F NEW LONDON WI
2014-09-25 920-322-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F FONDDU LAC 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.