64.54.128.0/24

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:      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

Overlapping Ranges

BGP prefixes that contain 64.54.128.0/24

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
181.2.142.40	AS7303 Telecom Argentina S.A.	`12.97ms` from Asuncion, PY
73.142.197.248	AS7922 Comcast Cable Communications, LLC	`10.59ms` from Boston, US
182.128.123.152	AS4134 CHINANET-BACKBONE	`1.67ms` from Chengdu, CN
4.185.2.24	AS8075 Microsoft Corporation	`0.28ms` from Frankfurt am Main, DE
47.239.122.72	AS45102 Alibaba (US) Technology Co., Ltd.	`0.79ms` from Hong Kong, HK
61.162.25.152	AS4837 CHINA UNICOM China169 Backbone	`3.24ms` from Jinan, CN
95.142.202.216	AS28709 VKontakte Ltd	`0.09ms` from Khabarovsk, RU
161.132.199.88	AS27843 WIN EMPRESAS S.A.C.	`0.29ms` from Lima, PE
97.101.17.120	AS33363 Charter Communications, Inc	`6.46ms` from Orlando, US
121.147.104.8	AS4766 Korea Telecom	`5.48ms` from Seoul, KR
84.171.198.72	AS3320 Deutsche Telekom AG	`3.83ms` from Berlin, DE
157.92.44.72	AS3449 Universidad Nacional de Buenos Aires	`1.33ms` from Buenos Aires, AR
134.68.117.216	AS87 Indiana University	`4.49ms` from Chicago, US
123.19.81.72	AS45899 VNPT Corp	`7.97ms` from Da Nang, VN
204.13.37.56	AS27298 REACH4 Communications	`15.61ms` from Dallas, US
52.209.239.120	AS16509 Amazon.com, Inc.	`0.17ms` from Dublin, IE
113.190.24.168	AS45899 VNPT Corp	`1.54ms` from Hanoi, VN
149.29.69.168	AS58658 DXTL	`0.76ms` from Hong Kong, HK
74.71.181.184	AS12271 Charter Communications Inc	`3.58ms` from New York City, US
180.196.76.168	AS18126 Chubu Telecommunications Company, Inc.	`6.49ms` from Osaka, JP
20.172.105.168	AS8075 Microsoft Corporation	`0.25ms` from Phoenix, US
3.84.144.24	AS14618 Amazon.com, Inc.	`0.61ms` from Reston, US
179.105.119.152	AS28573 Claro NXT Telecomunicacoes Ltda	`15.13ms` from Rio de Janeiro, BR
115.141.12.72	AS17858 LG POWERCOMM	`2.24ms` from Seoul, KR
203.219.141.232	AS7545 TPG Telecom Limited	`1.24ms` from Sydney, AU

Traceroute

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

traceroute -a -n -q1 -m15 64.54.128.134

traceroute to 64.54.128.134 (64.54.128.134): 15 hops max, 52 byte packets

1 [AS3170] 193.35.59.169 16.699 ms

2 *

3 *

4 [AS3170] 195.191.219.33 6.057 ms

5 [AS3356] 212.187.138.237 6.108 ms

6 *

7 [AS3356] 4.15.122.46 143.179 ms

8 [AS2152] 137.164.11.95 144.378 ms

9 [AS2152] 137.164.23.153 142.663 ms

10 [AS5653] 64.54.8.239 143.502 ms

11 [AS5653] 64.54.8.187 144.868 ms

12 [AS5653] 64.54.8.191 143.451 ms

13 *

14 *

15 *

Measurement taken from

IPinfo ProbeNet in Redditch, GB

On December 20th 2025

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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