165.123.192.0/23

AS400653 · University of Pennsylvania

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Summary

Country	United States
Domain	upenn.edu
ASN	AS400653
Parent Range	165.123.0.0/16
Registry	ARIN
ID	UPENN

WHOIS Details

NetHandle:      NET-165-123-0-0-1
OrgID:          UNIVER-8-Z
Parent:         NET-165-0-0-0-0
NetName:        UPENN
NetRange:       165.123.0.0 - 165.123.255.255
NetType:        allocation
RegDate:        1993-05-28
Updated:        2021-12-14
Source:         ARIN


OrgID:          UNIVER-8-Z
OrgName:        University of Pennsylvania
CanAllocate:    
Street:         3401 Walnut Street
Street:         Suite 221A
City:           Philadelphia
State/Prov:     PA
Country:        US
PostalCode:     19104-6228
RegDate:        2010-01-05
Updated:        2022-08-03
OrgAdminHandle: UNIVE-ARIN
OrgTechHandle:  OBRIE72-ARIN
OrgAbuseHandle: ISO-ARIN
OrgNOCHandle:   UNIVE-ARIN
Source:         ARIN


POCHandle:      UNIVE-ARIN
IsRole:         Y
LastName:       University of Pennsylvania
FirstName:      
Street:         3401 Walnut Street
Street:         Suite 265C
City:           Philadelphia
State/Prov:     PA
Country:        US
PostalCode:     19104-6228
RegDate:        2002-12-10
Updated:        2025-08-27
OfficePhone:    +1-215-573-9631
Mailbox:        noc@isc.upenn.edu
Source:         ARIN


POCHandle:      OBRIE72-ARIN
IsRole:         N
LastName:       O'Brien
FirstName:      John
Street:         3401 Walnut St
City:           Philadelphia
State/Prov:     PA
Country:        US
PostalCode:     19104
RegDate:        2014-06-17
Updated:        2025-03-28
OfficePhone:    +1-215-898-9818
Mailbox:        obrienjw@upenn.edu
Source:         ARIN


POCHandle:      ISO-ARIN
IsRole:         Y
LastName:       Information Security Officer
FirstName:      
Street:         3401 Walnut Street
Street:         Rm C226
City:           Philadelphia
State/Prov:     PA
Country:        US
PostalCode:     19104-6228
RegDate:        2002-12-11
Updated:        2025-06-02
OfficePhone:    +1-215-898-2172
FaxPhone:       +1-215-573-2037
Mailbox:        security@upenn.edu
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 165.123.192.0/23

Range	ASN	Company	Num of IPs
165.123.0.0/16	AS400653	University of Pennsylvania	65,536
165.123.0.0/16	AS55	University of Pennsylvania	65,536

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
165.123.192.26	AS400653 University of Pennsylvania	`1.57ms` 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
130.127.115.151	AS12148 Clemson University	`3.77ms` from Atlanta, US
47.57.23.151	AS45102 Alibaba (US) Technology Co., Ltd.	`0.66ms` from Hong Kong, HK
81.213.66.183	AS9121 Turk Telekomunikasyon Anonim Sirketi	`14.29ms` from Istanbul, TR
75.223.214.231	AS6167 Verizon Business	`7.32ms` from Los Angeles, US
81.33.209.55	AS3352 TELEFONICA DE ESPANA S.A.U.	`1.86ms` from Madrid, ES
203.38.216.231	AS1221 Telstra Limited	`3.65ms` from Melbourne, AU
34.8.121.135	AS396982 Google LLC	`0.08ms` from Melbourne, AU
172.104.210.87	AS63949 Akamai Connected Cloud	`0.14ms` from Morris Plains, US
180.11.3.199	AS4713 NTT Communications Corporation	`2.31ms` from Osaka, JP
3.228.65.247	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
34.196.40.103	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
109.226.90.23	AS8439 JSC AIST	`4.07ms` from Samara, RU
98.15.2.23	AS12271 Charter Communications Inc	`4.11ms` from Secaucus, US
66.65.135.87	AS12271 Charter Communications Inc	`5.22ms` from Secaucus, US
61.100.183.119	AS9952 Hostway IDC	`1.13ms` from Seoul, KR
23.218.30.247	AS16625 Akamai Technologies, Inc.	`0.27ms` from Tokyo, JP
91.141.209.7	AS31615 Odido Netherlands B.V.	`11.42ms` from Amsterdam, NL
20.16.108.199	AS8075 Microsoft Corporation	`0.24ms` from Amsterdam, NL
128.203.12.215	AS8075 Microsoft Corporation	`0.53ms` from Ashburn, US
47.248.229.39	AS33363 Charter Communications, Inc	`12.11ms` from Chicago, US
108.81.11.183	AS7018 AT&T Enterprises, LLC	`4.19ms` from Chicago, US
18.192.70.23	AS16509 Amazon.com, Inc.	`0.32ms` from Frankfurt am Main, DE
84.150.133.151	AS3320 Deutsche Telekom AG	`3.21ms` from Frankfurt am Main, DE
70.114.56.183	AS11427 Charter Communications Inc	`9.92ms` from Houston, US
81.107.132.103	AS5089 Virgin Media Limited	`6.06ms` from London, GB

Traceroute

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

traceroute -a -n -q1 -f6 -m13 165.123.193.195

traceroute to 165.123.193.195 (165.123.193.195): 13 hops max, 52 byte packets

6 [AS1299] 62.115.181.197 82.163 ms

7 *

8 [AS174] 154.54.0.241 101.029 ms

9 [AS174] 154.54.6.202 101.335 ms

10 [AS174] 154.24.90.46 101.251 ms

11 *

12 *

13 *

Measurement taken from

IPinfo ProbeNet in Tokyo, JP

On September 4th 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.

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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