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:      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


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:      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:      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

Nearby Ranges

BGP prefixes that overlap with 138.0.0.0/8

Range ASN Company Num of IPs
138.210.0.0/16 AS2379 CenturyLink Communications, LLC 65,536
138.254.0.0/16 AS243 L3Harris Technologies, Inc. 65,536
138.195.0.0/16 AS2200 CENTRALESUPELEC 65,536
138.243.0.0/16 AS23779 NTT Communications Corporation 65,536
138.29.0.0/16 AS22742 Coast Guard Academy 65,536
138.51.0.0/16 AS239 University of Toronto 65,536
138.90.0.0/16 AS16509 Amazon.com, Inc. 65,536
138.237.0.0/16 AS18791 Texas Christian University 65,536
138.102.0.0/16 AS2200 INRAE 65,536
138.231.0.0/16 AS2269 Ecole Normale Superieure Paris-Saclay EPSCP 65,536
138.210.0.0/16 AS22561 CenturyLink Communications, LLC 65,536
138.210.0.0/16 AS209 CenturyLink Communications, LLC 65,536
138.210.0.0/16 AS22186 CenturyLink Communications, LLC 65,536
138.247.0.0/16 AS23122 Dakota State University 65,536
138.52.0.0/16 AS16509 Amazon.com, Inc. 65,536
138.70.0.0/16 AS16509 Amazon.com, Inc. 65,536
138.15.0.0/16 AS10753 NEC Laboratories America, Inc. 65,536
138.63.0.0/16 AS1715 Centre Europeen de Recherches et Formation Avancee en Calcul Scientifique 65,536
138.216.0.0/16 AS214692 Tuve-palvelut 65,536
138.9.0.0/16 AS18663 University of the Pacific 65,536
138.22.0.0/16 AS1853 GeoSphere Austria 65,536
138.195.0.0/16 AS212424 CENTRALESUPELEC 65,536
138.34.0.0/16 AS16509 Amazon.com, Inc. 65,536
138.37.0.0/16 AS198864 Queen Mary University of London 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
138.192.0.0/16 AS21727 Hamline University 65,536
138.225.0.0/16 AS20868 ABB Information Systems Ltd 65,536
138.210.0.0/16 AS11398 CenturyLink Communications, LLC 65,536
138.101.0.0/16 AS16509 Nikkei Inc. 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
138.210.0.0/16 AS14921 CenturyLink Communications, LLC 65,536
138.92.0.0/16 AS11482 Canisius College 65,536
138.66.0.0/16 AS20981 Prov. Casamassima Km.3 65,536
138.27.0.0/16 AS1540 Headquarters, USAISC 65,536
138.86.0.0/16 AS15295 University of Northern Colorado 65,536
138.103.0.0/16 AS15830 AB Sandvik 65,536
138.41.0.0/16 AS137 DIR-GARR - Roma 65,536
138.236.0.0/16 AS17234 Gustavus Adolphus College 65,536
138.50.0.0/16 AS1565 Headquarters, USAISC 65,536
138.232.0.0/16 AS1110 University of Innsbruck 65,536
138.111.0.0/16 AS16509 Amazon Technologies Inc. 65,536
138.47.0.0/16 AS19564 Louisiana Tech University 65,536
138.77.0.0/16 AS24433 Central Queensland University 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
138.23.226.208 jimmycalanchini.com 1
138.23.51.57 dynamiterice.org 1
138.23.24.131 itsdrtest.com 1
138.23.243.73 topangamessenger.com 1
138.23.51.55 fungalgenome.org 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

1,828 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
138.23.216.1 AS6106 University of California, Riverside 5.16ms from Los Angeles, US
138.23.229.173 AS6106 University of California, Riverside 4.93ms from Los Angeles, US
138.23.79.161 AS6106 University of California, Riverside 4.85ms from Los Angeles, US
138.23.177.3 AS6106 University of California, Riverside 5.19ms from Los Angeles, US
138.23.124.1 AS6106 University of California, Riverside 5.78ms from Los Angeles, US
138.23.165.1 AS6106 University of California, Riverside 4.99ms from Los Angeles, US
138.23.136.1 AS6106 University of California, Riverside 5.01ms from Los Angeles, US
138.23.19.169 AS6106 University of California, Riverside 4.92ms from Los Angeles, US
138.23.228.233 AS6106 University of California, Riverside 3.92ms from Los Angeles, US
138.23.147.71 AS6106 University of California, Riverside 5.10ms from Los Angeles, US
138.23.178.72 AS6106 University of California, Riverside 4.89ms from Los Angeles, US
138.23.4.1 AS6106 University of California, Riverside 4.95ms from Los Angeles, US
138.23.100.49 AS6106 University of California, Riverside 4.98ms from Los Angeles, US
138.23.242.193 AS6106 University of California, Riverside 5.01ms from Los Angeles, US
138.23.254.17 AS6106 University of California, Riverside 3.96ms from Los Angeles, US
138.23.240.253 AS6106 University of California, Riverside 5.16ms from Los Angeles, US
138.23.225.123 AS6106 University of California, Riverside 5.00ms from Los Angeles, US
138.23.140.53 AS6106 University of California, Riverside 4.81ms from Los Angeles, US
138.23.182.199 AS6106 University of California, Riverside 4.90ms from Los Angeles, US
138.23.62.71 AS6106 University of California, Riverside 4.85ms from Los Angeles, US
138.23.161.202 AS6106 University of California, Riverside 5.34ms from Los Angeles, US
138.23.3.39 AS6106 University of California, Riverside 4.95ms from Los Angeles, US
138.23.141.191 AS6106 University of California, Riverside 4.94ms from Los Angeles, US
138.23.42.1 AS6106 University of California, Riverside 4.96ms from Los Angeles, US
138.23.173.142 AS6106 University of California, Riverside 4.95ms 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
24.237.187.64 AS8047 GENERAL COMMUNICATION, INC. 1.64ms from Anchorage, US
44.200.72.16 AS14618 Amazon.com, Inc. 0.84ms from Ashburn, US
66.189.41.96 AS20115 Charter Communications LLC 12.89ms from Ashburn, US
172.127.113.0 AS7018 AT&T Enterprises, LLC 2.51ms from Atlanta, US
94.27.138.48 AS5483 Magyar Telekom Plc. 2.07ms from Budapest, HU
45.232.55.0 AS267260 R. G. MENEZES DE ARAÚJO INFOR 11.77ms from Campina Grande, BR
190.153.19.240 AS11562 Net Uno, C.A. 0.71ms from Caracas, VE
24.211.163.144 AS11426 Charter Communications Inc 13.33ms from Charlotte, US
54.72.58.48 AS16509 Amazon.com, Inc. 0.33ms from Dublin, IE
95.135.1.16 AS199524 G-Core Labs S.A. 0.42ms from Frankfurt am Main, DE
217.236.120.64 AS3320 Deutsche Telekom AG 8.17ms from Frankfurt am Main, DE
91.37.84.160 AS3320 Deutsche Telekom AG 4.25ms from Frankfurt am Main, DE
125.99.168.80 AS17488 Hathway IP Over Cable Internet 16.39ms from Hyderabad, IN
2.61.43.16 AS12389 PJSC Rostelecom 8.47ms from Krasnoyarsk, RU
195.239.167.176 AS3216 PJSC "Vimpelcom" 0.65ms from Moscow, RU
119.229.182.112 AS17511 OPTAGE Inc. 1.99ms from Osaka, JP
20.94.150.48 AS8075 Microsoft Corporation 0.24ms from San Antonio, US
40.132.249.16 AS7029 Windstream Communications LLC 7.11ms from Secaucus, US
15.164.222.176 AS16509 Amazon.com, Inc. 0.84ms from Seoul, KR
27.106.162.32 AS17816 China Unicom IP network China169 Guangdong province 3.08ms from Shenzhen, CN
216.209.185.112 AS577 Bell Canada 4.15ms from Toronto, CA
18.210.237.32 AS14618 Amazon.com, Inc. 0.53ms from Ashburn, US
46.177.239.160 AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA 1.24ms from Athens, GR
172.3.177.80 AS7018 AT&T Enterprises, LLC 3.13ms from Chicago, US
98.60.93.16 AS7922 Comcast Cable Communications, LLC 13.36ms from Denver, US

Traceroute

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

$
traceroute -a -n -q1 -f2 138.23.40.1
traceroute to 138.23.40.1 (138.23.40.1): 64 hops max, 52 byte packets
2 [AS3356] 8.243.125.101 2.792 ms
3 *
4 [AS3356] 4.35.156.66 109.145 ms
5 [AS2152] 137.164.24.209 114.219 ms
6 *
7 *
8 *
9 [AS6106] 138.23.40.1 114.313 ms
Measurement taken from IPinfo ProbeNet in Lima, PE
On

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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