1. All IP Ranges
  2. 138.0.0.0/8
  3. 138.23.0.0/16
  4. AS6106  | 138.23.0.0/16

138.23.0.0/16

AS6106  ·  University of California, Riverside

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Summary

Country United States
Domain ucr.edu
ASN AS6106
Registry ARIN
ID UCRNET

WHOIS Details

NetHandle:      NET-138-23-0-0-1
OrgID:          UNIVER-211-Z
Parent:         NET-138-0-0-0-0
NetName:        UCRNET
NetRange:       138.23.0.0 - 138.23.255.255
NetType:        allocation
RegDate:        1990-01-24
Updated:        2024-01-17
TechHandle:     SYSTE802-ARIN
AbuseHandle:    ABUSE1631-ARIN
NOCHandle:      SYSTE802-ARIN
Source:         ARIN


OrgID:          UNIVER-211-Z
OrgName:        University of California, Riverside
CanAllocate:    
Street:         University of California, Riverside
Street:         Computing and Communications
City:           Riverside
State/Prov:     CA
Country:        US
PostalCode:     92521
RegDate:        2024-01-02
Updated:        2024-01-02
OrgAdminHandle: KENNE340-ARIN
OrgTechHandle:  FISHE693-ARIN
OrgTechHandle:  KENNE340-ARIN
OrgTechHandle:  SYSTE802-ARIN
OrgAbuseHandle: ABUSE1631-ARIN
OrgDNSHandle:   SYSTE802-ARIN
Source:         ARIN


POCHandle:      FISHE693-ARIN
IsRole:         N
LastName:       Fisher
FirstName:      Jeremy
Street:         900 University Ave.
City:           Riverside
State/Prov:     CA
Country:        US
PostalCode:     92521
RegDate:        2023-01-18
Updated:        2023-01-18
OfficePhone:    +1-951-827-4826
Mailbox:        jeremy.fisher@ucr.edu
Source:         ARIN


POCHandle:      SYSTE802-ARIN
IsRole:         Y
LastName:       Systems Engineering
FirstName:      
Street:         900 University Ave.
City:           Riverside
State/Prov:     CA
Country:        US
PostalCode:     92508
RegDate:        2023-01-23
Updated:        2023-01-23
OfficePhone:    +1-951-827-1012
Mailbox:        syseng@ucr.edu
Source:         ARIN


POCHandle:      ABUSE1631-ARIN
IsRole:         Y
LastName:       Abuse
FirstName:      
Street:         University of California, Riverside
Street:         Computing and Communications
City:           Riverside
State/Prov:     CA
Country:        US
PostalCode:     92521
RegDate:        2007-04-09
Updated:        2023-01-18
OfficePhone:    +1-951-827-4875
Mailbox:        abuse@ucr.edu
Source:         ARIN


POCHandle:      KENNE340-ARIN
IsRole:         N
LastName:       Kennedy
FirstName:      Michael
Street:         Computing and Communications Bldg.
City:           Riverside
State/Prov:     CA
Country:        US
PostalCode:     92521
RegDate:        2016-04-19
Updated:        2024-06-26
OfficePhone:    +1-951-827-4875
Mailbox:        michael.kennedy@ucr.edu
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 138.0.0.0/8

Range ASN Company Num of IPs
138.107.0.0/16 AS2497 OLYMPUS CORPORATION 65,536
138.115.0.0/16 AS270 National Aeronautics and Space Administration 65,536
138.77.0.0/16 AS24433 Central Queensland University 65,536
138.201.0.0/16 AS24940 Server Block 65,536
138.51.0.0/16 AS239 University of Toronto 65,536
138.48.0.0/16 AS2611 Facultes Universitaires Notre Dame de la Paix 65,536
138.90.0.0/16 AS16509 Amazon.com, Inc. 65,536
138.247.0.0/16 AS23122 Dakota State University 65,536
138.254.0.0/16 AS243 L3Harris Technologies, Inc. 65,536
138.243.0.0/16 AS23779 NTT Communications Corporation 65,536
138.29.0.0/16 AS22742 Coast Guard Academy 65,536
138.216.0.0/16 AS214692 Tuve-palvelut 65,536
138.210.0.0/16 AS2379 CenturyLink Communications, LLC 65,536
138.62.0.0/16 AS25400 Norwegian State Railways 65,536
138.70.0.0/16 AS16509 Amazon.com, Inc. 65,536
138.52.0.0/16 AS16509 Amazon.com, Inc. 65,536
138.15.0.0/16 AS10753 NEC Laboratories America, Inc. 65,536
138.27.0.0/16 AS1540 Headquarters, USAISC 65,536
138.210.0.0/16 AS22186 CenturyLink Communications, LLC 65,536
138.37.0.0/16 AS198864 Queen Mary University of London 65,536
138.192.0.0/16 AS21727 Hamline University 65,536
138.237.0.0/16 AS18791 Texas Christian University 65,536
138.34.0.0/16 AS16509 Amazon.com, Inc. 65,536
138.111.0.0/16 AS16509 Amazon Technologies Inc. 65,536
138.132.0.0/16 AS20746 Italtel SPA 65,536
138.106.0.0/16 AS202116 SCANIA CV AB 65,536
138.220.0.0/16 AS10497 IBRD 65,536
138.240.0.0/16 AS16509 Amazon.com, Inc. 65,536
138.210.0.0/16 AS22561 CenturyLink Communications, LLC 65,536
138.66.0.0/16 AS20981 Prov. Casamassima Km.3 65,536
138.210.0.0/16 AS11398 CenturyLink Communications, LLC 65,536
138.210.0.0/16 AS14921 CenturyLink Communications, LLC 65,536
138.130.0.0/16 AS1221 Telstra Limited 65,536
138.217.0.0/16 AS1221 Telstra Limited 65,536
138.189.0.0/16 AS12511 Post CH AG 65,536
138.191.0.0/16 AS12511 Post CH AG 65,536
138.246.0.0/16 AS12816 Ludwig-Maximilians-Universitaet Muenchen 65,536
138.86.0.0/16 AS15295 University of Northern Colorado 65,536
138.92.0.0/16 AS11482 Canisius College 65,536
138.63.0.0/16 AS1715 Centre Europeen de Recherches et Formation Avancee en Calcul Scientifique 65,536
138.47.0.0/16 AS19564 Louisiana Tech University 65,536
138.103.0.0/16 AS15830 AB Sandvik 65,536
138.236.0.0/16 AS17234 Gustavus Adolphus College 65,536
138.50.0.0/16 AS1565 Headquarters, USAISC 65,536
138.22.0.0/16 AS1853 GeoSphere Austria 65,536
138.9.0.0/16 AS18663 University of the Pacific 65,536
138.232.0.0/16 AS1110 University of Innsbruck 65,536
138.101.0.0/16 AS16509 Nikkei Inc. 65,536
138.41.0.0/16 AS137 DIR-GARR - Roma 65,536
138.49.0.0/16 AS3128 University of Wisconsin-La Crosse 65,536

Hosted domains

There are 10 domain names hosted across 8 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
138.23.162.6 difiber.com 2
138.23.211.205 hirokinishimura.net 2
138.23.51.57 dynamiterice.org 1
138.23.51.55 fungalgenome.org 1
138.23.24.131 itsdrtest.com 1
138.23.226.208 jimmycalanchini.com 1
138.23.243.73 topangamessenger.com 1
138.23.59.158 oomyceteworld.net 1

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

2,058 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
138.23.197.82 AS6106 University of California, Riverside 4.93ms from Los Angeles, US
138.23.193.227 AS6106 University of California, Riverside 4.95ms from Los Angeles, US
138.23.240.1 AS6106 University of California, Riverside 5.25ms from Los Angeles, US
138.23.100.49 AS6106 University of California, Riverside 5.06ms from Los Angeles, US
138.23.179.53 AS6106 University of California, Riverside 4.93ms from Los Angeles, US
138.23.177.1 AS6106 University of California, Riverside 5.28ms from Los Angeles, US
138.23.243.70 AS6106 University of California, Riverside 4.90ms from Los Angeles, US
138.23.123.1 AS6106 University of California, Riverside 5.07ms from Los Angeles, US
138.23.96.157 AS6106 University of California, Riverside 5.02ms from Los Angeles, US
138.23.103.62 AS6106 University of California, Riverside 5.00ms from Los Angeles, US
138.23.190.69 AS6106 University of California, Riverside 4.92ms from Los Angeles, US
138.23.56.186 AS6106 University of California, Riverside 4.92ms from Los Angeles, US
138.23.131.1 AS6106 University of California, Riverside 5.07ms from Los Angeles, US
138.23.136.1 AS6106 University of California, Riverside 5.06ms from Los Angeles, US
138.23.227.253 AS6106 University of California, Riverside 5.18ms from Los Angeles, US
138.23.150.163 AS6106 University of California, Riverside 5.00ms from Los Angeles, US
138.23.13.3 AS6106 University of California, Riverside 5.28ms from Los Angeles, US
138.23.64.129 AS6106 University of California, Riverside 5.04ms from Los Angeles, US
138.23.172.204 AS6106 University of California, Riverside 5.00ms from Los Angeles, US
138.23.58.200 AS6106 University of California, Riverside 4.94ms from Los Angeles, US
138.23.255.254 AS6106 University of California, Riverside 3.72ms from Los Angeles, US
138.23.31.117 AS6106 University of California, Riverside 5.04ms from Los Angeles, US
138.23.215.1 AS6106 University of California, Riverside 5.05ms from Los Angeles, US
138.23.191.71 AS6106 University of California, Riverside 4.91ms from Los Angeles, US
138.23.24.3 AS6106 University of California, Riverside 4.88ms from Los Angeles, 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
23.26.129.224 AS394760 Sauce Servers LLC 0.15ms from Ashburn, US
75.195.204.208 AS6167 Verizon Business 12.61ms from Chicago, US
47.185.155.160 AS5650 Frontier Communications of America, Inc. 1.57ms from Dallas, US
69.72.65.16 AS398979 Ringer 0.38ms from Denver, US
75.33.231.128 AS7018 AT&T Enterprises, LLC 8.44ms from Kansas City, US
213.199.56.144 AS51167 Contabo GmbH 0.17ms from Lauterbourg, FR
187.150.130.80 AS8151 UNINET 12.48ms from Miami, US
187.150.13.32 AS8151 UNINET 12.41ms from Miami, US
74.12.88.208 AS577 Bell Canada 3.18ms from Montreal, CA
87.188.17.240 AS3320 Deutsche Telekom AG 6.08ms from Nuernberg, DE
179.160.100.128 AS26599 TELEFÔNICA BRASIL S.A 1.87ms from Osasco, BR
165.98.78.16 AS52298 SINRIESGOS, S.A. 13.73ms from San Pedro Sula, HN
95.196.205.96 AS3301 Telia Company AB 8.30ms from Stockholm, SE
160.178.90.144 AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM 7.94ms from Casablanca, MA
85.134.226.112 AS25441 Imagine Communications Group Limited 13.38ms from Dublin, IE
179.124.175.224 AS271542 A. F. DE ASSUNÇÃO PEREIRA & CIA LTDA 11.01ms from Fortaleza, BR
91.34.227.160 AS3320 Deutsche Telekom AG 7.30ms from Frankfurt am Main, DE
47.245.186.64 AS45102 Alibaba (US) Technology Co., Ltd. 0.44ms from Frankfurt am Main, DE
47.90.100.160 AS45102 Alibaba (US) Technology Co., Ltd. 0.69ms from Hong Kong, HK
175.146.164.112 AS4837 CHINA UNICOM China169 Backbone 7.58ms from Liaoyang, CN
169.231.97.0 AS131 University of California, Santa Barbara 3.63ms from Los Angeles, US
172.114.120.176 AS20001 Charter Communications Inc 5.22ms from Los Angeles, US
87.22.53.0 AS3269 Telecom Italia S.p.A. 0.91ms from Milan, IT
79.164.98.96 AS8615 "Central Telegraph" Public Joint-stock Company 1.68ms from Moscow, RU
108.54.214.96 AS701 Verizon Business 3.31ms from New York City, US

Traceroute

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

$
traceroute -a -n -q1 -f4 -m8 138.23.47.5
traceroute to 138.23.47.5 (138.23.47.5): 8 hops max, 52 byte packets
4 [AS3356] 4.35.156.66 179.15 ms
5 [AS2152] 137.164.24.209 184.018 ms
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Helsinki, FI
On

What are IP address ranges?

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