AS31 - CIT - California Institute of Technology, US

United States
AS Number
AS31
AS Name
CIT
Org Name
California Institute of Technology
Country
United States
Registry

arin

RegDate

2023-08-22

Updated

2023-08-22

AS31 Looking Glass
IPv4Prefixes

14

IPv6Prefixes

1

IPv4 NUMs

131,840

IPv6 NUMs(/64)

4,294,967,296

131,840 IPv4 Addresses
CIDR Description IP Num
131.215.0.0/24 California Institute of Technology 256
131.215.0.0/16 California Institute of Technology 65536
131.215.229.0/24 California Institute of Technology 256
131.215.230.0/24 California Institute of Technology 256
131.215.234.0/24 California Institute of Technology 256
131.215.239.0/24 California Institute of Technology 256
131.215.240.0/24 California Institute of Technology 256
131.215.242.0/23 California Institute of Technology 512
131.215.244.0/23 California Institute of Technology 512
134.4.0.0/24 California Institute of Technology 256
134.4.0.0/16 California Institute of Technology 65536
192.12.19.0/24 California Institute of Technology 256
192.31.43.0/24 California Institute of Technology 256
192.41.208.0/24 California Institute of Technology 256
CIDR Description IP NUMs(prefix /64)
2607:f520::/32 California Institute of Technology 4294967296
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS153 CTNOSC-ASN-153 - Headquarters, USAISC, US United States 1,280 16,842,752 IPv6 IPv6
AS226 LOS-NETTOS-AS - Los Nettos, US United States 313,856 4,294,967,296 IPv4 IPv4
AS2152 CENIC-2152 - CENIC, US United States 2,078,720 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS2153 CENIC-2153 - CENIC, US United States 4,864 16,842,752 IPv4 IPv4 IPv6 IPv6
AS13335 CLOUDFLARENET - Cloudflare, Inc., US United States 1,732,608 43,953,750,016 IPv4 IPv4
IP Address Domain NUMs Domains
131.215.2.2 1 cryoemfw.caltech.edu
131.215.2.43 1 eruption.caltech.edu
131.215.2.48 6 ddem.caltech.edu
131.215.2.68 1 www.br.caltech.edu
131.215.2.103 1 elowitz.caltech.edu
131.215.2.105 1 easerver.caltech.edu
131.215.2.162 2 qmunicate.com
131.215.6.102 3 michael.health
131.215.8.62 2 bilrc.caltech.edu
131.215.8.116 4 midnight.caltech.edu 
ASNumber:       31
ASName:         CIT
ASHandle:       AS31
RegDate:        1984-09-21
Updated:        2023-08-29    
Ref:            https://rdap.arin.net/registry/autnum/31


OrgName:        California Institute of Technology
OrgId:          CIT-4-Z
Address:        1200 East California Boulevard
Address:        MS 1-10
City:           Pasadena
StateProv:      CA
PostalCode:     91125
Country:        US
RegDate:        2023-08-22
Updated:        2023-08-22
Ref:            https://rdap.arin.net/registry/entity/CIT-4-Z


OrgAbuseHandle: CI2-ORG-ARIN
OrgAbuseName:   Caltech Network Operations Center
OrgAbusePhone:  +1-626-395-3500 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/CI2-ORG-ARIN

OrgTechHandle: CI2-ORG-ARIN
OrgTechName:   Caltech Network Operations Center
OrgTechPhone:  +1-626-395-3500 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/CI2-ORG-ARIN

RTechHandle: CI2-ORG-ARIN
RTechName:   Caltech Network Operations Center
RTechPhone:  +1-626-395-3500 
RTechEmail:  [email protected]
RTechRef:    https://rdap.arin.net/registry/entity/CI2-ORG-ARIN