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	Prefix	Description
	134.86.0.0/16	Siemens Industry Software Inc.
	137.202.0.0/16	Siemens Industry Software Inc.
	139.181.12.0/22	Siemens Industry Software Inc.
	139.181.17.0/24	Siemens Industry Software Inc.
	147.34.0.0/16	Siemens Industry Software Inc.
	192.94.36.0/24	Siemens Industry Software Inc.
	192.94.38.0/23
	2620:107:f000::/40	Siemens Industry Software Inc.

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS3356	Lumen (Level 3)	✔	✔
	AS33490	Comcast (Portland/Spokane)	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS33490	Comcast (Portland/Spokane)	✔	✘
	AS3356	Lumen (Level 3)	✔	✔

ASHandle:       AS13541
OrgID:          SIS-377
ASName:         SIEMENS-DISW-WIV-B-ORW
ASNumber:       13541
RegDate:        1999-09-09
Updated:        2022-11-16
Source:         ARIN



OrgID:          SIS-377
OrgName:        Siemens Industry Software Inc.
CanAllocate:    
Street:         8005 SW Boeckman Road
City:           Wilsonville
State/Prov:     OR
Country:        US
PostalCode:     97070-7777
Comment:        Formerly Mentor Graphics Corporation
RegDate:        2022-05-10
Updated:        2026-02-02
OrgAdminHandle: SISA-ARIN
OrgTechHandle:  SIST-ARIN
OrgTechHandle:  TUCKE477-ARIN
OrgAbuseHandle: SISA1-ARIN
Source:         ARIN





OrgAdminHandle:       SISA-ARIN
OrgAdminName:          Siemens Industry Software Inc Admin
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        SIST-ARIN
OrgTechName:           Siemens Industry Software Inc Tech
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        TUCKE477-ARIN
OrgTechName:          Kenneth Tucker
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       SISA1-ARIN
OrgAbuseName:          Siemens Industry Software Inc Abuse
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-02-17T03:27:22Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as-comcast-edia	2751
LEVEL3	as-lumen-customers-asns	10695