AS53434 SRI International

• IPv4 Prefixes

Country	Announced Prefix	Description	Valid ROA	Parent Prefix	RIR
	128.57.136.0/23	SRI International		128.57.0.0/16	ARIN

• IPv4 Peers

Country	ASN	Name	Description
	AS33287	COMCAST-33287	Comcast Cable Communications, LLC
	AS33659	CMCS	Comcast Cable Communications, LLC

• IPv4 Upstreams

Country	ASN	Name	Description
	AS33287	COMCAST-33287	Comcast Cable Communications, LLC
	AS33659	CMCS	Comcast Cable Communications, LLC

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:       53434
ASName:         SRI-INTERNATIONAL-PRINCETON
ASHandle:       AS53434
RegDate:        2014-09-30
Updated:        2014-09-30    
Ref:            https://rdap.arin.net/registry/autnum/53434


OrgName:        SRI International
OrgId:          SI-342
Address:        201 Washington Road
City:           Princeton
StateProv:      NJ
PostalCode:     08543
Country:        US
RegDate:        2014-06-25
Updated:        2025-04-21
Ref:            https://rdap.arin.net/registry/entity/SI-342


OrgAbuseHandle: MAMF-ARIN
OrgAbuseName:   Favis, Mark Anthony  Medrano
OrgAbusePhone:  +1-650-859-6499 
OrgAbuseEmail:  mark.favis@sri.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/MAMF-ARIN

OrgAbuseHandle: MNS19-ARIN
OrgAbuseName:   Manager, Network Systems
OrgAbusePhone:  +1-609-651-2985 
OrgAbuseEmail:  raymond.mccallus@sri.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/MNS19-ARIN

OrgRoutingHandle: MAMF-ARIN
OrgRoutingName:   Favis, Mark Anthony  Medrano
OrgRoutingPhone:  +1-650-859-6499 
OrgRoutingEmail:  mark.favis@sri.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/MAMF-ARIN

OrgDNSHandle: TOMAS90-ARIN
OrgDNSName:   Tomasetti, John 
OrgDNSPhone:  +1-650-859-6166 
OrgDNSEmail:  john.tomasetti@sri.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/TOMAS90-ARIN

OrgRoutingHandle: HWB1-ARIN
OrgRoutingName:   Barker, Harold William
OrgRoutingPhone:  +1-650-859-2622 
OrgRoutingEmail:  harold.barker@sri.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/HWB1-ARIN

OrgTechHandle: MAMF-ARIN
OrgTechName:   Favis, Mark Anthony  Medrano
OrgTechPhone:  +1-650-859-6499 
OrgTechEmail:  mark.favis@sri.com
OrgTechRef:    https://rdap.arin.net/registry/entity/MAMF-ARIN

OrgTechHandle: TOMAS90-ARIN
OrgTechName:   Tomasetti, John 
OrgTechPhone:  +1-650-859-6166 
OrgTechEmail:  john.tomasetti@sri.com
OrgTechRef:    https://rdap.arin.net/registry/entity/TOMAS90-ARIN

OrgTechHandle: MNS19-ARIN
OrgTechName:   Manager, Network Systems
OrgTechPhone:  +1-609-651-2985 
OrgTechEmail:  raymond.mccallus@sri.com
OrgTechRef:    https://rdap.arin.net/registry/entity/MNS19-ARIN

OrgDNSHandle: MAMF-ARIN
OrgDNSName:   Favis, Mark Anthony  Medrano
OrgDNSPhone:  +1-650-859-6499 
OrgDNSEmail:  mark.favis@sri.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/MAMF-ARIN

OrgTechHandle: HWB1-ARIN
OrgTechName:   Barker, Harold William
OrgTechPhone:  +1-650-859-2622 
OrgTechEmail:  harold.barker@sri.com
OrgTechRef:    https://rdap.arin.net/registry/entity/HWB1-ARIN

OrgRoutingHandle: TOMAS90-ARIN
OrgRoutingName:   Tomasetti, John 
OrgRoutingPhone:  +1-650-859-6166 
OrgRoutingEmail:  john.tomasetti@sri.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/TOMAS90-ARIN

OrgNOCHandle: MNS19-ARIN
OrgNOCName:   Manager, Network Systems
OrgNOCPhone:  +1-609-651-2985 
OrgNOCEmail:  raymond.mccallus@sri.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/MNS19-ARIN

OrgAbuseHandle: TOMAS90-ARIN
OrgAbuseName:   Tomasetti, John 
OrgAbusePhone:  +1-650-859-6166 
OrgAbuseEmail:  john.tomasetti@sri.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/TOMAS90-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.
#