64.54.6.0/24

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:      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


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:      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

Overlapping Ranges

BGP prefixes that contain 64.54.6.0/24

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

44 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
64.54.6.99	AS5653 University of California San Francisco	`23.14ms` from San Jose, US

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
47.188.165.168	AS5650 Frontier Communications of America, Inc.	`7.66ms` from Dallas, US
86.40.1.56	AS5466 Eircom Limited	`1.42ms` from Dublin, IE
80.81.25.232	AS8767 M-net Telekommunikations GmbH	`4.32ms` from Frankfurt am Main, DE
71.202.202.8	AS7922 Comcast Cable Communications, LLC	`1.70ms` from Fremont, US
119.213.134.152	AS4766 Korea Telecom	`1.86ms` from Incheon, KR
136.33.227.152	AS16591 Google Fiber Inc.	`0.79ms` from Kansas City, US
79.144.254.56	AS3352 TELEFONICA DE ESPANA S.A.U.	`9.10ms` from Madrid, ES
88.36.109.120	AS3269 Telecom Italia S.p.A.	`2.04ms` from Milan, IT
34.139.224.136	AS396982 Google LLC	`0.14ms` from Moncks Corner, US
73.100.46.184	AS7922 Comcast Cable Communications, LLC	`8.77ms` from Providence, US
211.197.192.8	AS4766 Korea Telecom	`6.25ms` from Seoul, KR
64.130.42.72	AS20326 TeraSwitch Networks Inc.	`0.18ms` from Amsterdam, NL
156.213.29.40	AS8452 TE-AS	`19.02ms` from Cairo, EG
217.94.101.216	AS3320 Deutsche Telekom AG	`2.72ms` from Duesseldorf, DE
121.32.125.40	AS4134 CHINANET-BACKBONE	`1.63ms` from Guangzhou, CN
104.68.60.56	AS16625 Akamai Technologies, Inc.	`0.20ms` from Jakarta, ID
86.174.111.72	AS2856 British Telecommunications PLC	`2.81ms` from London, GB
170.106.151.136	AS132203 Tencent Building, Kejizhongyi Avenue	`0.25ms` from San Jose, US
20.160.8.200	AS8075 Microsoft Corporation	`0.23ms` from Amsterdam, NL
52.92.147.152	AS16509 Amazon.com, Inc.	`0.43ms` from Boardman, US
73.249.223.8	AS7922 Comcast Cable Communications, LLC	`9.62ms` from Boston, US
35.233.116.184	AS396982 Google LLC	`0.16ms` from Brussels, BE
52.118.210.88	AS36351 IBM Cloud	`0.98ms` from Dallas, US
63.177.225.248	AS16509 Amazon.com, Inc.	`0.18ms` from Frankfurt am Main, DE
34.101.69.184	AS396982 Google LLC	`0.80ms` from Jakarta, ID

Traceroute

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

traceroute -a -n -q1 64.54.6.35

traceroute to 64.54.6.35 (64.54.6.35): 64 hops max, 52 byte packets

1 [AS31898] 140.91.234.49 0.094 ms

2 [] 206.223.117.139 0.778 ms

3 [] 206.223.117.118 0.821 ms

4 [AS2152] 137.164.11.95 1.975 ms

5 [AS2152] 137.164.23.153 2.39 ms

6 [AS5653] 64.54.8.237 2.389 ms

7 [AS5653] 64.54.8.213 23.128 ms

8 [AS5653] 64.54.8.243 22.832 ms

9 [AS5653] 64.54.192.197 23.063 ms

10 [AS5653] 64.54.6.35 22.961 ms

Measurement taken from

IPinfo ProbeNet in San Jose, US

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.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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