64.54.4.0/24

AS5653 · University of California San Francisco

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Summary

Country	United States
Domain	ucsf.edu
ASN	AS5653
Parent Range	64.54.0.0/16
Registry	ARIN
ID	UCSF-2NET

WHOIS Details

NetHandle:      NET-64-54-0-0-1
OrgID:          UCSF
Parent:         NET-64-0-0-0-0
NetName:        UCSF-2NET
NetRange:       64.54.0.0 - 64.54.255.255
NetType:        allocation
RegDate:        2000-03-08
Updated:        2021-12-14
TechHandle:     CKO12-ARIN
AbuseHandle:    UIISS-ARIN
Source:         ARIN


OrgID:          UCSF
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:        1970-01-01
Updated:        2023-05-17
OrgAdminHandle: CHENT14-ARIN
OrgTechHandle:  CHENT14-ARIN
OrgTechHandle:  YOUNG1436-ARIN
OrgAbuseHandle: UIISS-ARIN
Source:         ARIN


POCHandle:      YOUNG1436-ARIN
IsRole:         N
LastName:       Young
FirstName:      Steve
Street:         1855 Folsom Street
City:           San Francisco
State/Prov:     CA
Country:        US
PostalCode:     94103
RegDate:        2023-05-12
Updated:        2025-05-16
OfficePhone:    +1-415-476-0869
MobilePhone:    +1-415-716-5570
Mailbox:        steve.young@ucsf.edu
Source:         ARIN


POCHandle:      UIISS-ARIN
IsRole:         Y
LastName:       UCSF ITS Information Security Services
FirstName:      
Street:         1855 Folsom Street
Street:         Suite 301
City:           San Francisco
State/Prov:     CA
Country:        US
PostalCode:     94103-0272
RegDate:        2004-05-05
Updated:        2018-11-26
OfficePhone:    +1-415-514-4100
Mailbox:        security@ucsf.edu
Source:         ARIN


POCHandle:      CKO12-ARIN
IsRole:         N
LastName:       Koehler
FirstName:      Charles
Street:         Room 602
Street:         1855 Folsom Street
City:           San Francisco
State/Prov:     CA
Country:        US
PostalCode:     94143-0225
RegDate:        2004-05-20
Updated:        2016-04-01
OfficePhone:    +1-415-476-8767
Mailbox:        charles.koehler@ucsf.edu
Source:         ARIN


POCHandle:      CHENT14-ARIN
IsRole:         N
LastName:       Chen
FirstName:      Tom
Street:         1855 Folsom St, #601
City:           San Francisco
State/Prov:     CA
Country:        US
PostalCode:     94143
RegDate:        2021-03-18
Updated:        2024-05-28
OfficePhone:    +1-415-353-3990
MobilePhone:    +1-415-860-4051
Mailbox:        tom.chen@ucsf.edu
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 64.54.4.0/24

Range	ASN	Company	Num of IPs
64.54.0.0/16	AS5653	University of California San Francisco	65,536

Nearby Ranges

BGP prefixes that overlap with 64.54.0.0/16

Range	ASN	Company	Num of IPs
64.54.0.0/16	AS5653	University of California San Francisco	65,536

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
62.250.79.200	AS50266 Odido Netherlands B.V.	`2.68ms` from Amsterdam, NL
176.41.253.56	AS34984 Superonline Iletisim Hizmetleri A.S.	`8.22ms` from Ankara, TR
138.119.106.88	AS611 NB-PEI Educational Computer Network	`13.43ms` from Beauharnois, CA
117.216.163.40	AS9829 National Internet Backbone	`5.20ms` from Bengaluru, IN
175.153.203.40	AS4837 CHINA UNICOM China169 Backbone	`5.00ms` from Chengdu, CN
140.248.229.24	AS54113 Fastly, Inc.	`0.20ms` from Frankfurt am Main, DE
178.172.20.56	AS2107 ARNES	`0.93ms` from Ljubljana, SI
14.201.31.120	AS7545 TPG Telecom Limited	`10.97ms` from Melbourne, AU
73.165.84.104	AS7922 Comcast Cable Communications, LLC	`7.76ms` from New York City, US
177.156.120.248	AS18881 TELEFÔNICA BRASIL S.A	`4.53ms` from Osasco, BR
44.207.227.248	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
143.107.29.152	AS28571 UNIVERSIDADE DE SAO PAULO	`0.77ms` from Sao Paulo, BR
210.104.80.232	AS4766 Korea Telecom	`6.94ms` from Seoul, KR
222.107.107.120	AS4766 Korea Telecom	`0.95ms` from Seoul, KR
91.240.220.200	AS59416 Limited Liability Company Production Company Novocherkassk Electric Locomotive Works	`17.22ms` from Tbilisi, GE
221.200.38.152	AS4837 CHINA UNICOM China169 Backbone	`2.15ms` from Tieling, CN
131.121.26.8	AS668 United States Department of Defense (DoD)	`2.65ms` from Ashburn, US
216.66.186.168	AS26546 FIBERNETICS CORPORATION	`5.15ms` from Calgary, CA
118.251.3.24	AS4134 CHINANET-BACKBONE	`4.25ms` from Changsha, CN
68.45.85.248	AS7922 Comcast Cable Communications, LLC	`12.96ms` from Chicago, US
113.198.235.120	AS9870 DONG-EUI UNIVERSITY	`6.64ms` from Incheon, KR
51.148.173.184	AS13037 Zen Internet Ltd	`1.32ms` from London, GB
50.254.214.88	AS7922 Comcast Cable Communications, LLC	`7.61ms` from Miami, US
137.63.134.152	AS327687 Research and Education Network for Uganda	`8.61ms` from Nairobi, KE
110.73.93.120	AS4837 CHINA UNICOM China169 Backbone	`7.97ms` from Nanning, CN

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

traceroute -a -n -q1 -f2 -m16 64.54.4.134

traceroute to 64.54.4.134 (64.54.4.134): 16 hops max, 52 byte packets

2 [AS61102] 185.18.207.65 0.19 ms

3 *

4 *

5 *

6 [AS3356] 212.113.14.209 54.564 ms

7 *

8 [AS3356] 4.15.122.46 192.784 ms

9 [AS2152] 137.164.11.95 193.138 ms

10 [AS2152] 137.164.23.153 198.545 ms

11 [AS5653] 64.54.8.237 193.658 ms

12 [AS5653] 64.54.8.213 214.168 ms

13 [AS5653] 64.54.8.243 216.589 ms

14 *

15 *

16 *

Measurement taken from

IPinfo ProbeNet in Tel Aviv, IL

On January 19th 2026

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

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