AS400571 CDNS

CADENCE-ATL

IPv4 Addresses: 512

Number of Peers: 3

Number of Prefixes: 2

ASN Allocated: 28^th March 2022

ASN
Prefixes
Peers
Upstreams
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Raw Whois

AS400571 Summary

Regional Registry:

ARIN

Allocation Status:

Assigned

Allocation Date:

28^th March 2022

Allocated Country:

AS400571 Network

IPv4 Prefixes:

IPv4 Peers:

IPv4 Upstreams:

IPv6 Prefixes:

IPv6 Peers:

IPv6 Upstreams:

Contacts

Email Contacts:

hostmaster@cadence.com

Abuse Contacts:

hostmaster@cadence.com

Address:

2655 Seely Ave,

Building 7,

San Jose,

CA,

95134,

IPv4 Prefixes

Country	Announced Prefix	Description	Valid ROA	Parent Prefix	RIR
	158.140.0.0/24	Cadence Design Systems, Inc.		158.140.0.0/21	ARIN
	158.140.7.0/24	Cadence Design Systems, Inc.		158.140.0.0/21	ARIN

IPv4 Peers

ASN	Name	Description
AS6461	ZAYO-6461	Zayo Bandwidth
AS3356	LEVEL3	Level 3 Parent, LLC
AS7725	COMCAST-7725	Comcast Cable Communications, LLC

IPv4 Upstreams

ASN	Name	Description
AS6461	ZAYO-6461	Zayo Bandwidth
AS3356	LEVEL3	Level 3 Parent, LLC
AS7725	COMCAST-7725	Comcast Cable Communications, LLC

IPv4 Upstream Graph

#
# 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.
#


ASNumber:       400571
ASName:         CADENCE-ATL
ASHandle:       AS400571
RegDate:        2022-03-28
Updated:        2022-03-28    
Ref:            https://rdap.arin.net/registry/autnum/400571


OrgName:        CDNS
OrgId:          CDS-370
Address:        2655 Seely Ave
Address:        Building 7
City:           San Jose
StateProv:      CA
PostalCode:     95134
Country:        US
RegDate:        2018-03-22
Updated:        2018-03-22
Ref:            https://rdap.arin.net/registry/entity/CDS-370


OrgAbuseHandle: HOSTM2078-ARIN
OrgAbuseName:   Hostmaster
OrgAbusePhone:  +1-408-428-4070 
OrgAbuseEmail:  hostmaster@cadence.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/HOSTM2078-ARIN

OrgNOCHandle: HOSTM2078-ARIN
OrgNOCName:   Hostmaster
OrgNOCPhone:  +1-408-428-4070 
OrgNOCEmail:  hostmaster@cadence.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/HOSTM2078-ARIN

OrgTechHandle: HOSTM2078-ARIN
OrgTechName:   Hostmaster
OrgTechPhone:  +1-408-428-4070 
OrgTechEmail:  hostmaster@cadence.com
OrgTechRef:    https://rdap.arin.net/registry/entity/HOSTM2078-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.
#

Country	IX	Name	IPv4	IPv6	Port Speed

AS400571 CDNS

CADENCE-ATL

AS400571 Summary

Regional Registry:

Allocation Status:

Allocation Date:

Allocated Country:

AS400571 Network

IPv4 Prefixes:

IPv4 Peers:

IPv4 Upstreams:

IPv6 Prefixes:

IPv6 Peers:

IPv6 Upstreams:

Contacts

Email Contacts:

Abuse Contacts:

Address:

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