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:        [email protected]
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:        [email protected]
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:        [email protected]
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

Nearby Ranges

BGP prefixes that overlap with 165.123.0.0/16

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

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

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	`1.54ms` 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
193.79.237.39	AS702 Verizon Business	`0.68ms` from Amsterdam, NL
130.127.115.151	AS12148 Clemson University	`3.80ms` from Atlanta, US
80.64.74.215	AS50261 ACE Telecom Kft	`0.14ms` from Budapest, HU
174.110.63.71	AS11426 Charter Communications Inc	`11.89ms` from Charlotte, US
103.66.125.119	AS23655 2degrees Networks Limited	`1.27ms` from Christchurch, NZ
81.77.117.23	AS5378 Vodafone Limited	`10.79ms` from Erith, GB
47.75.220.71	AS45102 Alibaba (US) Technology Co., Ltd.	`0.70ms` from Hong Kong, HK
220.164.98.231	AS4134 CHINANET-BACKBONE	`4.01ms` from Kunming, CN
104.174.27.103	AS20001 Charter Communications Inc	`7.37ms` from Los Angeles, US
34.102.198.39	AS396982 Google LLC	`0.08ms` from Manila, PH
189.225.5.39	AS8151 UNINET	`5.66ms` from Mexico City, MX
87.16.134.71	AS3269 Telecom Italia S.p.A.	`5.94ms` from Milan, IT
91.166.215.71	AS12322 Free SAS	`10.70ms` from Paris, FR
112.234.66.231	AS4837 CHINA UNICOM China169 Backbone	`7.20ms` from Qingdao, CN
188.117.64.39	AS41176 SaharaNet	`9.30ms` from Riyadh, SA
2.177.25.39	AS58224 Iran Telecommunication Company PJS	`17.61ms` from Yerevan, AM
213.42.43.215	AS5384 Emirates Internet	`2.66ms` from Al Fujairah City, AE
108.81.11.183	AS7018 AT&T Enterprises, LLC	`3.52ms` from Chicago, US
89.41.123.55	AS8926 Moldtelecom SA	`2.78ms` from Chisinau, MD
89.19.52.23	AS56496 TV 2 Danmark A/S	`2.02ms` from Copenhagen, DK
85.138.13.87	AS2860 NOS COMUNICACOES, S.A.	`2.12ms` from Lisbon, PT
188.42.45.103	AS7979 Servers.com, Inc.	`4.63ms` from Luxembourg, LU
83.38.161.231	AS3352 TELEFONICA DE ESPANA S.A.U.	`7.30ms` from Madrid, ES
176.206.157.119	AS1267 WIND TRE S.P.A.	`10.21ms` from Milan, IT
180.198.139.151	AS18126 Chubu Telecommunications Company, Inc.	`6.32ms` from Osaka, JP

Traceroute

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

traceroute -a -n -q1 -f2 -m13 165.123.193.229

traceroute to 165.123.193.229 (165.123.193.229): 13 hops max, 52 byte packets

2 [AS6939] 184.104.208.157 1.253 ms

3 *

4 *

5 *

6 [AS1299] 62.115.181.197 112.698 ms

7 [AS1299] 62.115.187.137 112.986 ms

8 [AS174] 154.54.0.241 130.795 ms

9 [AS174] 154.54.6.202 131.146 ms

10 [AS174] 154.24.90.46 135.327 ms

11 *

12 *

13 *

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On November 28th 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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