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	Prefix	Description
	50.146.103.0/24	Comcast Cable Communications, LLC
	149.117.68.0/24	Synopsys Inc.
	209.51.32.0/23	Black Duck Software, Inc.
	209.51.34.0/24	Black Duck Software, Inc.

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS49915	Megaport (UK) Limited	✔	✘
	AS7725	Comcast Cable Communications, LLC	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS49915	Megaport (UK) Limited	✔	✘
	AS7725	Comcast Cable Communications, LLC	✔	✘

ASHandle:       AS54651
OrgID:          BDS-141
ASName:         BLACK-DUCK-SOFTWARE-01
ASNumber:       54651
RegDate:        2024-08-27
Comment:        http://www.synopsys.com
Comment:        Standard NOC hours 
Comment:        7:00 AM to 11:00 PM PST
Updated:        2024-08-27
Source:         ARIN



OrgID:          BDS-141
OrgName:        Black Duck Software, Inc.
CanAllocate:    
Street:         675 Almanor Ave
City:           Sunnyvale
State/Prov:     CA
Country:        US
PostalCode:     94085
RegDate:        2024-05-22
Updated:        2025-11-26
OrgAdminHandle: MAS199-ARIN
OrgTechHandle:  MANDO5-ARIN
OrgTechHandle:  MAS199-ARIN
OrgTechHandle:  OWENS401-ARIN
OrgTechHandle:  RUANK-ARIN
OrgAbuseHandle: MAS199-ARIN
Source:         ARIN





OrgAdminHandle:       MAS199-ARIN
OrgAdminName:         Michael Streib
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        MANDO5-ARIN
OrgTechName:          Stephen Mandolare
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        MAS199-ARIN
OrgTechName:          Michael Streib
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        OWENS401-ARIN
OrgTechName:          Scottie Owen
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        RUANK-ARIN
OrgTechName:          Kenny Ruan
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       MAS199-ARIN
OrgAbuseName:         Michael Streib
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2025-12-24T03:26:51Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
APNIC	as9583:as-sify	4894
RIPE	as1273:as-cww	71328
RADB	as-comcast-edia	2752
RIPE	as49915:as-customers	314
RADB	as9583:as-sify	4894