AS4583 West Publishing Corporation

• IPv4 Prefixes

Country	Announced Prefix	Description	Valid ROA	Parent Prefix	RIR
	155.46.132.0/23	Thomson Reuters U.S. LLC		155.46.128.0/17	ARIN
	155.46.136.0/22	Thomson Reuters U.S. LLC		155.46.128.0/17	ARIN
	155.46.140.0/22	Thomson Reuters U.S. LLC		155.46.128.0/17	ARIN
	155.46.144.0/22	Thomson Reuters U.S. LLC		155.46.128.0/17	ARIN
	155.46.152.0/23	Thomson Reuters U.S. LLC		155.46.128.0/17	ARIN
	155.46.154.0/23	Thomson Reuters U.S. LLC		155.46.128.0/17	ARIN
	155.46.156.0/23	Thomson Reuters U.S. LLC		158.140.240.0/21	APNIC
	155.46.165.0/24	Thomson Reuters U.S. LLC		155.46.128.0/17	ARIN
	155.46.168.0/22	Thomson Reuters U.S. LLC		155.46.128.0/17	ARIN
	155.46.172.0/22	Thomson Reuters U.S. LLC		155.46.128.0/17	ARIN
	192.189.224.0/24	Thomson Reuters (Legal) Inc.		192.189.224.0/24	ARIN

• IPv4 Peers

Country	ASN	Name	Description
	AS6461	ZAYO-6461	Zayo Bandwidth
	AS7018	ATT-INTERNET4	AT&T Enterprises, LLC
	AS399616	THOMSON-REUTERS	Thomson Reuters U.S. LLC
	AS2686	ATGS-MMD-AS	AT&T Enterprises, LLC
	AS3356	LEVEL3	Level 3 Parent, LLC

• IPv4 Upstreams

Country	ASN	Name	Description
	AS3356	LEVEL3	Level 3 Parent, LLC
	AS2686	ATGS-MMD-AS	AT&T Enterprises, LLC
	AS7018	ATT-INTERNET4	AT&T Enterprises, LLC
	AS399616	THOMSON-REUTERS	Thomson Reuters U.S. LLC
	AS6461	ZAYO-6461	Zayo Bandwidth

IPv4 Upstream Graph

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IPv4 Upstream Graph

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#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
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# Copyright 1997-2025, American Registry for Internet Numbers, Ltd.
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ASNumber:       4583
ASName:         THOMSON-REUTERS
ASHandle:       AS4583
RegDate:        1995-05-01
Updated:        2021-10-04    
Ref:            https://rdap.arin.net/registry/autnum/4583


OrgName:        West Publishing Corporation
OrgId:          WPC-15
Address:        610 Opperman Drive
City:           Eagan
StateProv:      MN
PostalCode:     55123
Country:        US
RegDate:        1992-08-25
Updated:        2014-12-03
Ref:            https://rdap.arin.net/registry/entity/WPC-15


OrgTechHandle: TRIPT-ARIN
OrgTechName:   TR-IP-TECH
OrgTechPhone:  +1-651-687-7000 
OrgTechEmail:  TR.IP-TECH@thomsonreuters.com
OrgTechRef:    https://rdap.arin.net/registry/entity/TRIPT-ARIN

OrgAbuseHandle: TRIPA1-ARIN
OrgAbuseName:   TR-IP-Abuse
OrgAbusePhone:  +1-651-687-7000 
OrgAbuseEmail:  TR.IP-ABUSE@thomsonreuters.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/TRIPA1-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2025, American Registry for Internet Numbers, Ltd.
#