ASN AS5653 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS5653?

AS5653 is listed under University of California San Francisco.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS5653 University of California San Francisco

ASN Lookup Tool

University of California San Francisco ucsf.edu

US 19 Routes

AS Data

AS5653

AS5653 – University of California San Francisco

AS Number	5653
AS Name	UCSF
Organization	University of California San Francisco(ucsf-z)
Country	US
Website	ucsf.edu
Number of IPv4 Routes	19
Number of IPv6 Routes	0
ASN type	EDUCATION
Registry	ARIN
Date Allocated	1995-07-27

ASN Intelligence API for production workflows

Use ASN data for AS5653 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
64.54.202.0/24	AS5653	University of California San Francisco	University of California San Francisco	256
64.54.128.0/24	AS5653	University of California San Francisco	University of California San Francisco	256
64.54.162.0/24	AS5653	University of California San Francisco	University of California San Francisco	256
169.230.239.0/24	AS5653	University of California San Francisco	University of California San Francisco	256
64.54.17.0/24	AS5653	University of California San Francisco	University of California San Francisco	256
64.54.149.0/24	AS5653	University of California San Francisco	University of California San Francisco	256
64.54.196.0/24	AS5653	University of California San Francisco	University of California San Francisco	256
64.54.9.0/24	AS5653	University of California San Francisco	University of California San Francisco	256
64.54.197.0/24	AS5653	University of California San Francisco	University of California San Francisco	256
64.54.192.0/24	AS5653	University of California San Francisco	University of California San Francisco	256

Raw Whois Response

#
# 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 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       5653
ASName:         UCSF
ASHandle:       AS5653
RegDate:        1995-07-27
Updated:        2026-02-26    
Ref:            https://rdap.arin.net/registry/autnum/5653


OrgName:        University of California San Francisco
OrgId:          UCSF-Z
Address:        Room 602
Address:        1855 Folsom Street
City:           San Francisco
StateProv:      CA
PostalCode:     94143-0225
Country:        US
RegDate:        2023-08-22
Updated:        2023-08-22
Ref:            https://rdap.arin.net/registry/entity/UCSF-Z


OrgTechHandle: CHENT14-ARIN
OrgTechName:   Chen, Tom 
OrgTechPhone:  +1-415-353-3990 
OrgTechEmail:  tom.chen@ucsf.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/CHENT14-ARIN

OrgTechHandle: YOUNG1436-ARIN
OrgTechName:   Young, Steve 
OrgTechPhone:  +1-415-476-0869 
OrgTechEmail:  steve.young@ucsf.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/YOUNG1436-ARIN

OrgAbuseHandle: UIISS-ARIN
OrgAbuseName:   UCSF ITS Information Security Services
OrgAbusePhone:  +1-415-514-4100 
OrgAbuseEmail:  security@ucsf.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/UIISS-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 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

Peers

AS Number	Description	Country
AS2153	CENIC	US
AS2152	CENIC	US

Upstreams

AS Number	Description	Country
AS2153	CENIC	US
AS2152	CENIC	US