AS7377 - UCSD - University of California, San Diego, US

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AS Number
AS7377
AS Name
UCSD
Org Name
University of California, San Diego
Country
United States
Registry

arin

RegDate

2023-08-23

Updated

2026-05-15

AS7377 Looking Glass
http://yo2tm.ampr.org/nettools.php
IPv4Prefixes

18

IPv6Prefixes

2

IPv4 NUMs

12,855,552

IPv6 NUMs(/64)

5,368,709,120

12,855,552 IPv4 Addresses
CIDR Description IP Num
44.0.0.0/9
IRR Valid
Amateur Radio Digital Communications 8388608
44.128.0.0/10
IRR Valid
Amateur Radio Digital Communications 4194304
69.166.11.0/24
IRR Valid
RGnet, LLC 256
69.196.32.0/20
IRR Valid
The Regents of the University of California - University of California, San Diego. 4096
69.196.32.0/19
IRR InValid
The Regents of the University of California - University of California, San Diego. 8192
69.196.40.0/24
IRR Parent Valid
The Regents of the University of California - University of California, San Diego. 256
128.54.0.0/16
ROA Signed and Valid IRR Valid
University of California, San Diego 65536
132.239.0.0/16
ROA Signed and Valid IRR Valid
University of California, San Diego 65536
137.110.0.0/16
ROA Signed and Valid IRR Valid
University of California, San Diego 65536
169.228.0.0/16
ROA Signed and Valid IRR Valid
University of California, San Diego 65536
192.135.237.0/24
IRR Valid
Marine Physical Lab/UCSD 256
192.135.238.0/24
IRR Valid
Marine Physical Lab/UCSD 256
192.154.1.0/24
IRR Valid
University of California at San Diego 256
198.134.135.0/24
ROA Signed and Valid IRR Valid
University of California, San Diego 256
207.34.0.0/24
IRR Valid
RGnet, LLC 256
216.21.14.0/24
IRR Valid
RGnet, LLC 256
216.151.34.0/24
IRR Valid
RGnet, LLC 256
216.151.38.0/24
IRR Valid
RGnet, LLC 256
CIDR Description IP NUMs(prefix /64)
2001:48d0:c000::/34
IRR Valid
San Diego Supercomputer Center 1073741824
2607:f720::/32
ROA Signed and Valid IRR Valid
University of California, San Diego 4294967296
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS2152 CENIC-2152 - CENIC, US United States 2,013,184 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS2153 CENIC-2153 - CENIC, US United States 4,608 16,842,752 IPv4 IPv4 IPv6 IPv6
AS153 CTNOSC-ASN-153 - Headquarters, USAISC, US United States 256 16,842,752 IPv6 IPv6
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS26397 OPTIPUTER - The Regents of the University of California - University of California, San Diego., US United States 8,960 33 IPv4 IPv4 IPv6 IPv6 
ASNumber:       7377
ASName:         UCSD
ASHandle:       AS7377
RegDate:        1996-11-25
Updated:        2023-12-19
Ref:            https://rdap.arin.net/registry/autnum/7377


OrgName:        University of California, San Diego
OrgId:          UCSD-1-Z
Address:        IT Services
Address:        9500 Gilman Dr, #0903
Address:        Attn: Hostmaster
City:           La Jolla
StateProv:      CA
PostalCode:     92093-0903
Country:        US
RegDate:        2023-08-23
Updated:        2026-05-15
Ref:            https://rdap.arin.net/registry/entity/UCSD-1-Z


OrgAbuseHandle: NOC1807-ARIN
OrgAbuseName:   Network Operations Center
OrgAbusePhone:  +1-858-822-0249 
OrgAbuseEmail:  datacom-mgmt-l@ucsd.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NOC1807-ARIN

OrgAbuseHandle: UNA13-ARIN
OrgAbuseName:   UCSD Network Abuse
OrgAbusePhone:  +1-858-822-0249 
OrgAbuseEmail:  jmadden@ucsd.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/UNA13-ARIN

OrgTechHandle: NOC1807-ARIN
OrgTechName:   Network Operations Center
OrgTechPhone:  +1-858-822-0249 
OrgTechEmail:  datacom-mgmt-l@ucsd.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/NOC1807-ARIN

OrgNOCHandle: NOC1807-ARIN
OrgNOCName:   Network Operations Center
OrgNOCPhone:  +1-858-822-0249 
OrgNOCEmail:  datacom-mgmt-l@ucsd.edu
OrgNOCRef:    https://rdap.arin.net/registry/entity/NOC1807-ARIN

OrgRoutingHandle: NOC1807-ARIN
OrgRoutingName:   Network Operations Center
OrgRoutingPhone:  +1-858-822-0249 
OrgRoutingEmail:  datacom-mgmt-l@ucsd.edu
OrgRoutingRef:    https://rdap.arin.net/registry/entity/NOC1807-ARIN

OrgDNSHandle: NOC1807-ARIN
OrgDNSName:   Network Operations Center
OrgDNSPhone:  +1-858-822-0249 
OrgDNSEmail:  datacom-mgmt-l@ucsd.edu
OrgDNSRef:    https://rdap.arin.net/registry/entity/NOC1807-ARIN