138.23.0.0/16

AS6106  ·  University of California, Riverside

Need more data or want to access it via API or data downloads? Sign up to get free access

Sign up for free ›

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
OriginAS:       6106
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:      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:      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:      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

Overlapping Ranges

BGP prefixes that are contained by 138.23.0.0/16

Range ASN Company Num of IPs
138.23.104.0/22 AS6106 University of California, Riverside 1,024

Nearby Ranges

BGP prefixes that overlap with 138.0.0.0/8

Range ASN Company Num of IPs
138.144.0.0/12 AS721 DoD Network Information Center 1,048,576
138.136.0.0/13 AS721 DoD Network Information Center 524,288
138.168.0.0/14 AS721 MARINE CORPS CYBERSPACE OPERATIONS GROUP 262,144
138.172.0.0/14 AS749 DoD Network Information Center 262,144
138.164.0.0/14 AS721 DoD Network Information Center 262,144
138.244.0.0/15 AS12816 LMU-Klinikum 131,072
138.150.0.0/15 AS721 DoD Network Information Center 131,072
138.160.0.0/15 AS721 DoD Network Information Center 131,072
138.60.0.0/15 AS749 ORG-DODNIC-1 131,072
138.162.0.0/15 AS665 Navy Network Information Center (NNIC) 131,072
138.250.0.0/15 AS786 Cranfield University 131,072
138.176.0.0/15 AS749 DoD Network Information Center 131,072
138.178.0.0/15 AS721 Navy Network Information Center (NNIC) 131,072
138.25.0.0/16 AS7575 University of Technology Sydney 65,536
138.91.0.0/16 AS8075 Microsoft Corp 65,536
138.107.0.0/16 AS2497 OLYMPUS CORPORATION 65,536
138.81.0.0/16 AS3303 ISO Central Secretariat 65,536
138.100.0.0/16 AS766 Universidad Politecnica de Madrid 65,536
138.77.0.0/16 AS24433 Central Queensland University 65,536
138.189.0.0/16 AS12511 Post CH AG 65,536
138.87.0.0/16 AS7386 Illinois State University 65,536
138.220.0.0/16 AS10497 IBRD 65,536
138.22.0.0/16 AS1853 Network of the Central Institute for Meteorology and Geodynamics 65,536
138.85.0.0/16 AS8147 Ericsson Inc. 65,536
138.253.0.0/16 AS786 University of Liverpool (NET-LIVNET) 65,536
138.130.0.0/16 AS1221 Telstra Limited 65,536
138.44.0.0/16 AS7575 Australian Academic and Research Network 65,536
138.64.0.0/16 AS4685 ASAHI Net,Inc. 65,536
138.198.0.0/16 AS51964 STMicroelectronics 65,536
138.184.0.0/16 AS749 DoD Network Information Center 65,536
138.180.0.0/16 AS721 Navy Network Information Center (NNIC) 65,536
138.18.0.0/16 AS749 DoD Network Information Center 65,536
138.237.0.0/16 AS18791 Texas Christian University 65,536
138.67.0.0/16 AS36704 Colorado School of Mines 65,536
138.29.0.0/16 AS22742 Coast Guard Academy 65,536
138.182.0.0/16 AS749 DoD Network Information Center 65,536
138.102.0.0/16 AS2200 INRAE 65,536
138.45.0.0/16 AS749 DoD Network Information Center 65,536
138.28.0.0/16 AS600 Kenyon College 65,536
138.65.0.0/16 AS749 DoD Network Information Center 65,536
138.14.0.0/16 AS2119 Saab AB 65,536
138.109.0.0/16 AS749 DoD Network Information Center 65,536
138.168.0.0/16 AS637 MARINE CORPS CYBERSPACE OPERATIONS GROUP 65,536
138.96.0.0/16 AS776 INRIA Institut National de Recherche En Informatique Et Automatique 65,536
138.123.0.0/16 AS46887 Delaware Technical Community College 65,536
138.88.0.0/16 AS701 Verizon Business 65,536
138.70.0.0/16 AS15589 Amazon.com, Inc. 65,536
138.101.0.0/16 AS9593 Nikkei Inc. 65,536
138.254.0.0/16 AS243 L3Harris Technologies, Inc. 65,536
138.9.0.0/16 AS18663 University of the Pacific 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
138.23.211.205 hirokinishimura.net 2
138.23.162.6 difiber.com 2
138.23.243.73 topangamessenger.com 1
138.23.51.55 fungalgenome.org 1
138.23.51.57 dynamiterice.org 1
138.23.226.208 jimmycalanchini.com 1
138.23.24.131 itsdrtest.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

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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs