195 SDSC-AS - San Diego Supercomputer Center, US
Adjacency: 8 Upstream: 3 Downstream: 5
Upstream Adjacent AS list
AS2153 CENIC-2153 - CENIC, US
AS2152 CENIC-2152 - CENIC, US
AS22773 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US
Downstream Adjacent AS list
AS2641 TSRI-AS - The Scripps Research Institute, US
AS1909 CAIDA - San Diego Supercomputer Center, US
AS12148 CLEMSONU - Clemson University, US
AS22213 SALK-AS - Salk Institute, US
AS46985 HPWREN - The Regents of the University of California - University of California, San Diego., US
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 1378 AS195 ORG+TRN Originate: 187904 /14.48 Transit: 7936 /19.05 SDSC-AS - San Diego Supercomputer Center, US
Aggregation Suggestions
Filter: Aggregates, Specifics
This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.
Rank AS AS Name Current Wthdw Aggte Annce Redctn %
8367 AS195 SDSC-AS - San Diego Supercomputer Center, US 33 8 3 28 5 15.15%
Prefix AS Path Aggregation Suggestion
44.8.5.0/24 4608 7575 6461 22773 195
67.58.54.128/25 4777 2500 7660 11537 2153 195
67.58.56.0/21 4608 7575 2153 195
132.249.0.0/16 4777 2516 2152 195
132.249.104.0/22 4608 7575 2153 195
132.249.233.128/25 4777 2500 7660 11537 2153 195
153.105.0.0/16 4777 2516 2152 195
192.12.207.0/24 4777 2516 2152 195
192.31.21.0/24 4777 2516 2152 195
192.67.20.0/24 4777 2516 2152 195
192.67.81.0/24 4777 2516 2152 195
192.67.82.0/24 4777 2516 2152 195
192.207.234.0/24 4777 2516 2152 195
198.17.46.0/23 4777 2516 2152 195 + Announce - aggregate of 198.17.46.0/24 (4777 2516 2152 195) and 198.17.47.0/24 (4777 2516 2152 195)
198.17.46.0/24 4777 2516 2152 195 - Withdrawn - aggregated with 198.17.47.0/24 (4777 2516 2152 195)
198.17.47.0/24 4777 2516 2152 195 - Withdrawn - aggregated with 198.17.46.0/24 (4777 2516 2152 195)
198.17.101.0/24 4777 2516 2152 195
198.187.222.0/24 4777 2516 2152 195
198.202.64.0/18 4777 2500 141682 134148 23855 7660 2907 2153 195 {195}
198.202.64.0/19 4777 2516 2152 195 + Announce - aggregate of 198.202.64.0/20 (4777 2516 2152 195) and 198.202.80.0/20 (4777 2516 2152 195)
198.202.64.0/20 4777 2516 2152 195 - Withdrawn - aggregated with 198.202.80.0/20 (4777 2516 2152 195)
198.202.80.0/20 4777 2516 2152 195 - Withdrawn - aggregated with 198.202.64.0/20 (4777 2516 2152 195)
198.202.96.0/19 4777 2500 141682 134148 23855 7660 2907 2153 195 {195} - Withdrawn - matching aggregate 198.202.64.0/18 4777 2500 141682 134148 23855 7660 2907 2153 195 {195}
198.202.96.0/20 4777 2516 2152 195
198.202.100.0/22 4608 7575 2153 195
198.202.104.0/24 4608 7575 2153 195
198.202.110.0/24 4608 7575 2153 195
198.202.112.0/20 4777 2516 2152 195 195
198.202.112.0/21 4777 2516 2152 195
198.202.114.0/23 4608 7575 2153 195
198.202.116.0/22 4608 7575 2153 195 + Announce - aggregate of 198.202.116.0/23 (4608 7575 2153 195) and 198.202.118.0/23 (4608 7575 2153 195)
198.202.116.0/23 4608 7575 2153 195 - Withdrawn - aggregated with 198.202.118.0/23 (4608 7575 2153 195)
198.202.118.0/23 4608 7575 2153 195 - Withdrawn - aggregated with 198.202.116.0/23 (4608 7575 2153 195)
198.202.120.0/24 4608 7575 2153 195
199.165.16.0/20 4777 2516 2152 195
199.165.17.0/24 4777 2516 2152 195 - Withdrawn - matching aggregate 199.165.16.0/20 4777 2516 2152 195
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS195 19 More Specifics 33 Total Advertisements SDSC-AS - San Diego Supercomputer Center, US
44.8.5.0/24 44.0.0.0/9
67.58.54.128/25 67.58.32.0/19
67.58.56.0/21 67.58.32.0/19
132.249.104.0/22 132.249.0.0/16
132.249.233.128/25 132.249.0.0/16
198.202.64.0/20 198.202.64.0/18
198.202.80.0/20 198.202.64.0/18
198.202.96.0/19 198.202.64.0/18
198.202.96.0/20 198.202.64.0/18
198.202.100.0/22 198.202.64.0/18
198.202.104.0/24 198.202.64.0/18
198.202.110.0/24 198.202.64.0/18
198.202.112.0/20 198.202.64.0/18
198.202.112.0/21 198.202.64.0/18
198.202.114.0/23 198.202.64.0/18
198.202.116.0/23 198.202.64.0/18
198.202.118.0/23 198.202.64.0/18
198.202.120.0/24 198.202.64.0/18
199.165.17.0/24 199.165.16.0/20
Prefixes added and withdrawn by this origin AS in the past 7 days.
+ 132.249.104.0/22 Announced
+ 198.202.114.0/23 Announced
+ 198.202.116.0/23 Announced
whois: 402332
IANA has recorded AS195 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS195\n
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
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# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
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ASNumber: 195
ASName: SDSC-AS
ASHandle: AS195
RegDate: 1988-05-26
Updated: 2023-06-01
Ref: https://rdap.arin.net/registry/autnum/195
OrgName: San Diego Supercomputer Center
OrgId: SDSC-Z
Address: 9500 Gilman Drive
Address: MS-0505
City: La Jolla
StateProv: CA
PostalCode: 92093-0505
Country: US
RegDate: 2023-04-06
Updated: 2023-05-24
Ref: https://rdap.arin.net/registry/entity/SDSC-Z
OrgNOCHandle: ENS13-ARIN
OrgNOCName: ENS
OrgNOCPhone: +1-858-534-5090
OrgNOCEmail: ens@sdsc.edu
OrgNOCRef: https://rdap.arin.net/registry/entity/ENS13-ARIN
OrgTechHandle: SKINN116-ARIN
OrgTechName: Skinner, Erik
OrgTechPhone: +1-815-534-5090
OrgTechEmail: eskinner@sdsc.edu
OrgTechRef: https://rdap.arin.net/registry/entity/SKINN116-ARIN
OrgAbuseHandle: SDSCH-ARIN
OrgAbuseName: SDSC Hostmaster
OrgAbusePhone: +1-858-534-5090
OrgAbuseEmail: hostmaster@sdsc.edu
OrgAbuseRef: https://rdap.arin.net/registry/entity/SDSCH-ARIN
OrgTechHandle: HERMA36-ARIN
OrgTechName: Herman, Dan
OrgTechPhone: +1-858-534-6589
OrgTechEmail: diherman@sdsc.edu
OrgTechRef: https://rdap.arin.net/registry/entity/HERMA36-ARIN
OrgTechHandle: TH60-ARIN
OrgTechName: Hutton, Thomas
OrgTechPhone: +1-619-787-0349
OrgTechEmail: hutton@sdslug.org
OrgTechRef: https://rdap.arin.net/registry/entity/TH60-ARIN
OrgAbuseHandle: SDSCA-ARIN
OrgAbuseName: SDSC-ABUSE
OrgAbusePhone: +1-858-534-5090
OrgAbuseEmail: abuse@sdsc.edu
OrgAbuseRef: https://rdap.arin.net/registry/entity/SDSCA-ARIN
OrgNOCHandle: TH60-ARIN
OrgNOCName: Hutton, Thomas
OrgNOCPhone: +1-619-787-0349
OrgNOCEmail: hutton@sdslug.org
OrgNOCRef: https://rdap.arin.net/registry/entity/TH60-ARIN
RTechHandle: TH60-ARIN
RTechName: Hutton, Thomas
RTechPhone: +1-619-787-0349
RTechEmail: hutton@sdslug.org
RTechRef: https://rdap.arin.net/registry/entity/TH60-ARIN
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
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