AS Number
AS26397
AS Name
OPTIPUTER
Org Name
The Regents of the University of California - University of California, San Diego.
Country / Region
United States
Registry

arin

RegDate

2009-05-15

Updated

2026-07-09

AS26397 Looking Glass
IPv4Prefixes

4

IPv6Prefixes

18

IPv4 NUMs

8,960

IPv6 NUMs(/64)

33

CIDR Description IP Num
67.58.32.0/19
IRR InValid
The Regents of the University of California - University of California, San Diego. 8192
67.58.48.0/20
IRR InValid
The Regents of the University of California - University of California, San Diego. 4096
169.228.130.0/23
IRR InValid
University of California, San Diego 512
169.228.132.0/24
IRR InValid
University of California, San Diego 256
CIDR Description IP NUMs(prefix /64)
2001:48d0:6020:f000::/64
IRR InValid
San Diego Supercomputer Center 1
2001:48d0:6020:f010::/64
IRR InValid
San Diego Supercomputer Center 1
2001:48d0:6020:f010::/60
IRR InValid
San Diego Supercomputer Center 16
2001:48d0:6020:f011::/64
IRR InValid
San Diego Supercomputer Center 1
2001:48d0:6020:f012::/64
IRR InValid
San Diego Supercomputer Center 1
2001:48d0:6020:f013::/64
IRR InValid
San Diego Supercomputer Center 1
2001:48d0:6020:f014::/64
IRR InValid
San Diego Supercomputer Center 1
2001:48d0:6020:f015::/64
IRR InValid
San Diego Supercomputer Center 1
2001:48d0:6020:f018::/64
IRR InValid
San Diego Supercomputer Center 1
2001:48d0:6020:f019::/64
IRR InValid
San Diego Supercomputer Center 1
2001:48d0:6020:f01a::/64
IRR InValid
San Diego Supercomputer Center 1
2001:48d0:6020:f01b::/64
IRR InValid
San Diego Supercomputer Center 1
2001:48d0:6020:f01c::/64
IRR InValid
San Diego Supercomputer Center 1
2001:48d0:6020:f01d::/64
IRR InValid
San Diego Supercomputer Center 1
2001:48d0:6020:f01e::/64
IRR InValid
San Diego Supercomputer Center 1
2607:f720:1700:1b30::/64
IRR InValid
University of California, San Diego 1
2607:f720:1700:1b30::/60
IRR InValid
University of California, San Diego 16
2607:f720:1700:1b32::/64
IRR InValid
University of California, San Diego 1
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS2153 CENIC-2153 - CENIC, US United States 4,608 16,842,752 IPv4 IPv4
AS7377 UCSD - University of California, San Diego, US United States 12,855,552 5,368,709,120 IPv4 IPv4 IPv6 IPv6
AS293 ESNET - ESnet, US United States 140,800 4,295,163,904 IPv6 IPv6
ASNumber:       26397
ASName:         OPTIPUTER
ASHandle:       AS26397
RegDate:        2006-12-21
Updated:        2015-10-19
Ref:            https://rdap.arin.net/registry/autnum/26397

OrgID:          THERE-41
OrgName:        The Regents of the University of California - University of California, San Diego.
CanAllocate:    
Street:         Prism Project,University of California, San Diego
Street:         9500 Gilman Drive
Street:         MS-0505
City:           La Jolla
State/Prov:     CA
Country:        US
PostalCode:     92093-0505
RegDate:        2009-05-15
Updated:        2026-07-09
OrgAdminHandle  TH60-ARIN
OrgTechHandle   BDU62-ARIN
OrgTechHandle   NOC1807-ARIN
OrgTechHandle   TH60-ARIN
OrgAbuseHandle  NOC1807-ARIN
OrgAbuseHandle  TH60-ARIN
OrgNOCHandle    NOC1807-ARIN
OrgNOCHandle    SDSCN-ARIN
OrgNOCHandle    TH60-ARIN
Source:         ARIN

OrgAdminHandleHandle:  TH60-ARIN
OrgAdminHandleName:    Hutton, Thomas
OrgAdminHandlePhone:   +1-858-534-5136
OrgAdminHandleEmail:   [email protected]
OrgAdminHandleRef:     https://rdap.arin.net/registry/entity/TH60-ARIN

OrgTechHandleHandle:  BDU62-ARIN
OrgTechHandleName:    dunne, brian
OrgTechHandlePhone:   +1-858-334-9579
OrgTechHandleEmail:   [email protected]
OrgTechHandleRef:     https://rdap.arin.net/registry/entity/BDU62-ARIN

OrgTechHandleHandle:  NOC1807-ARIN
OrgTechHandleName:    Network Operations Center, 
OrgTechHandlePhone:   +1-858-822-0249
OrgTechHandleEmail:   [email protected]
OrgTechHandleRef:     https://rdap.arin.net/registry/entity/NOC1807-ARIN

OrgTechHandleHandle:  TH60-ARIN
OrgTechHandleName:    Hutton, Thomas
OrgTechHandlePhone:   +1-858-534-5136
OrgTechHandleEmail:   [email protected]
OrgTechHandleRef:     https://rdap.arin.net/registry/entity/TH60-ARIN

OrgAbuseHandleHandle:  NOC1807-ARIN
OrgAbuseHandleName:    Network Operations Center, 
OrgAbuseHandlePhone:   +1-858-822-0249
OrgAbuseHandleEmail:   [email protected]
OrgAbuseHandleRef:     https://rdap.arin.net/registry/entity/NOC1807-ARIN

OrgAbuseHandleHandle:  TH60-ARIN
OrgAbuseHandleName:    Hutton, Thomas
OrgAbuseHandlePhone:   +1-858-534-5136
OrgAbuseHandleEmail:   [email protected]
OrgAbuseHandleRef:     https://rdap.arin.net/registry/entity/TH60-ARIN

OrgNOCHandleHandle:  NOC1807-ARIN
OrgNOCHandleName:    Network Operations Center, 
OrgNOCHandlePhone:   +1-858-822-0249
OrgNOCHandleEmail:   [email protected]
OrgNOCHandleRef:     https://rdap.arin.net/registry/entity/NOC1807-ARIN

OrgNOCHandleHandle:  SDSCN-ARIN
OrgNOCHandleName:    SDSC NOC, 
OrgNOCHandlePhone:   +1-858-534-5090
OrgNOCHandleEmail:   [email protected]
OrgNOCHandleRef:     https://rdap.arin.net/registry/entity/SDSCN-ARIN

OrgNOCHandleHandle:  TH60-ARIN
OrgNOCHandleName:    Hutton, Thomas
OrgNOCHandlePhone:   +1-858-534-5136
OrgNOCHandleEmail:   [email protected]
OrgNOCHandleRef:     https://rdap.arin.net/registry/entity/TH60-ARIN

RTechHandleHandle:  SDSCN-ARIN
RTechHandleName:    SDSC NOC, 
RTechHandlePhone:   +1-858-534-5090
RTechHandleEmail:   [email protected]
RTechHandleRef:     https://rdap.arin.net/registry/entity/SDSCN-ARIN

RTechHandleHandle:  TECHO2-ARIN
RTechHandleName:    Tech Optiputer, 
RTechHandlePhone:   +1-858-534-3036
RTechHandleEmail:   [email protected]
RTechHandleRef:     https://rdap.arin.net/registry/entity/TECHO2-ARIN

RTechHandleHandle:  TH60-ARIN
RTechHandleName:    Hutton, Thomas
RTechHandlePhone:   +1-858-534-5136
RTechHandleEmail:   [email protected]
RTechHandleRef:     https://rdap.arin.net/registry/entity/TH60-ARIN

RAbuseHandleHandle:  ABUSE1467-ARIN
RAbuseHandleName:    Abuse Optiputer, 
RAbuseHandlePhone:   +1-858-534-3036
RAbuseHandleEmail:   [email protected]
RAbuseHandleRef:     https://rdap.arin.net/registry/entity/ABUSE1467-ARIN

RAbuseHandleHandle:  PAPAD12-ARIN
RAbuseHandleName:    Papadopoulos, Phil
RAbuseHandlePhone:   +1-858-922-7305
RAbuseHandleEmail:   [email protected]
RAbuseHandleRef:     https://rdap.arin.net/registry/entity/PAPAD12-ARIN

RAbuseHandleHandle:  TH60-ARIN
RAbuseHandleName:    Hutton, Thomas
RAbuseHandlePhone:   +1-858-534-5136
RAbuseHandleEmail:   [email protected]
RAbuseHandleRef:     https://rdap.arin.net/registry/entity/TH60-ARIN

RNOCHandleHandle:  NOCOP5-ARIN
RNOCHandleName:    NOC Optiputer, 
RNOCHandlePhone:   +1-858-534-3036
RNOCHandleEmail:   [email protected]
RNOCHandleRef:     https://rdap.arin.net/registry/entity/NOCOP5-ARIN

RNOCHandleHandle:  PAPAD12-ARIN
RNOCHandleName:    Papadopoulos, Phil
RNOCHandlePhone:   +1-858-922-7305
RNOCHandleEmail:   [email protected]
RNOCHandleRef:     https://rdap.arin.net/registry/entity/PAPAD12-ARIN

RNOCHandleHandle:  SDSCN-ARIN
RNOCHandleName:    SDSC NOC, 
RNOCHandlePhone:   +1-858-534-5090
RNOCHandleEmail:   [email protected]
RNOCHandleRef:     https://rdap.arin.net/registry/entity/SDSCN-ARIN

RNOCHandleHandle:  TH60-ARIN
RNOCHandleName:    Hutton, Thomas
RNOCHandlePhone:   +1-858-534-5136
RNOCHandleEmail:   [email protected]
RNOCHandleRef:     https://rdap.arin.net/registry/entity/TH60-ARIN