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	Prefix	Description
	64.54.0.0/16	University of California San Francisco
	64.54.4.0/24	University of California San Francisco
	64.54.6.0/24	University of California San Francisco
	64.54.9.0/24	University of California San Francisco
	64.54.17.0/24	University of California San Francisco
	64.54.18.0/24	University of California San Francisco
	64.54.128.0/24	University of California San Francisco
	64.54.149.0/24	University of California San Francisco
	64.54.162.0/24	University of California San Francisco
	64.54.192.0/24	University of California San Francisco
	64.54.193.0/24	University of California San Francisco
	64.54.195.0/24	University of California San Francisco
	64.54.196.0/24	University of California San Francisco
	64.54.197.0/24	University of California San Francisco
	64.54.201.0/24	University of California San Francisco
	64.54.202.0/24	University of California San Francisco
	128.218.0.0/16	University of California San Francisco
	169.230.0.0/16	University of California San Francisco

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS2152	CENIC - CalREN	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS2152	CENIC - CalREN	✔	✘
	AS2153	CENIC	✔	✘

ASHandle:       AS5653
OrgID:          UCSF-Z
ASName:         UCSF
ASNumber:       5653
RegDate:        1995-07-27
Updated:        2026-02-26
Source:         ARIN



OrgID:          UCSF-Z
OrgName:        University of California San Francisco
CanAllocate:    
Street:         Room 602
Street:         1855 Folsom Street
City:           San Francisco
State/Prov:     CA
Country:        US
PostalCode:     94143-0225
RegDate:        2023-08-22
Updated:        2023-08-22
OrgAdminHandle: CHENT14-ARIN
OrgTechHandle:  CHENT14-ARIN
OrgTechHandle:  YOUNG1436-ARIN
OrgAbuseHandle: UIISS-ARIN
Source:         ARIN





OrgAdminHandle:       CHENT14-ARIN
OrgAdminName:         Tom Chen
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        CHENT14-ARIN
OrgTechName:          Tom Chen
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        YOUNG1436-ARIN
OrgTechName:          Steve Young
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       UIISS-ARIN
OrgAbuseName:          UCSF ITS Information Security Services
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-03-13T03:26:23Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as198949:as-sd	3458
RADB	as-ucnet	11
RADB	as174:as-cogc-022	47
LEVEL3	as-level3-origins-na	0
RADB	as-calren2	263