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:      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:      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:      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
181.214.82.24	AS212238 Datacamp Limited	`0.46ms` from Atlanta, US
120.2.214.40	AS4837 CHINA UNICOM China169 Backbone	`9.72ms` from Beijing, CN
78.54.195.104	AS6805 Telefonica Germany GmbH & Co.OHG	`2.32ms` from Berlin, DE
80.201.7.8	AS5432 Proximus NV	`2.06ms` from Brussels, BE
73.110.219.24	AS7922 Comcast Cable Communications, LLC	`10.83ms` from Chicago, US
70.186.105.120	AS22773 Cox Communications Inc.	`15.73ms` from Dallas, US
189.135.236.216	AS8151 UNINET	`11.49ms` from Guadalajara, MX
157.255.145.104	AS134543 China Unicom Guangdong IP network	`3.28ms` from Guangzhou, CN
154.212.105.40	AS134548 DXTL Tseung Kwan O Service	`0.73ms` from Hong Kong, HK
78.168.191.24	AS9121 Turk Telekomunikasyon Anonim Sirketi	`5.66ms` from Istanbul, TR
83.51.119.88	AS3352 TELEFONICA DE ESPANA S.A.U.	`8.56ms` from Madrid, ES
139.124.9.24	AS2457 Renater	`2.25ms` from Marseille, FR
79.224.201.232	AS3320 Deutsche Telekom AG	`4.45ms` from Munich, DE
92.158.90.216	AS3215 Orange S.A.	`4.04ms` from Paris, FR
106.68.236.56	AS7545 TPG Telecom Limited	`1.05ms` from Perth, AU
111.229.12.24	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.03ms` from Shanghai, CN
52.65.65.104	AS16509 Amazon.com, Inc.	`0.15ms` from Sydney, AU
54.168.8.56	AS16509 Amazon.com, Inc.	`0.32ms` from Tokyo, JP
52.168.181.200	AS8075 Microsoft Corporation	`0.42ms` from Ashburn, US
188.199.209.40	AS5603 Telekom Slovenije, d.d.	`9.81ms` from Ljubljana, SI
74.73.131.168	AS12271 Charter Communications Inc	`3.66ms` from New York City, US
128.91.251.136	AS55 University of Pennsylvania	`3.35ms` from New York City, US
177.91.120.88	AS262317 ROS Telecom	`9.35ms` from Osasco, BR
24.20.226.56	AS7922 Comcast Cable Communications, LLC	`2.78ms` from Portland, US
221.159.65.216	AS4766 Korea Telecom	`6.11ms` from Seoul, KR

Traceroute

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

traceroute -a -n -q1 -f4 -m13 64.54.4.249

traceroute to 64.54.4.249 (64.54.4.249): 13 hops max, 52 byte packets

4 [AS3356] 4.69.219.61 149.858 ms

5 [AS3356] 4.15.122.46 147.721 ms

6 [AS2152] 137.164.11.95 148.816 ms

7 [AS2152] 137.164.23.153 149.704 ms

8 [AS5653] 64.54.8.237 149.636 ms

9 [AS5653] 64.54.8.213 171.248 ms

10 [AS5653] 64.54.8.243 169.42 ms

11 *

12 *

13 *

Measurement taken from

IPinfo ProbeNet in Dublin, IE

On April 13th 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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