195 SDSC-AS, US
Adjacency: 10 Upstream: 4 Downstream: 6
Upstream Adjacent AS list
AS293 ESNET, US
AS22773 ASN-CXA-ALL-CCI-22773-RDC, US
AS2152 CENIC-2152, US
AS2153 CENIC-2153, US
Downstream Adjacent AS list
AS2153 CENIC-2153, US
AS1909 CAIDA, US
AS12148 CLEMSONU, US
AS2641 TSRI-AS, US
AS22213 SALK-AS, US
AS46985 HPWREN, US
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 1386 AS195 ORG+TRN Originate: 188928 /14.47 Transit: 9472 /18.79 SDSC-AS, 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 %
8445 AS195 SDSC-AS, US 46 9 4 41 5 10.87%
Prefix AS Path Aggregation Suggestion
44.8.5.0/24 6939 22773 195
67.58.54.128/25 11537 2153 195
67.58.56.0/21 2152 2153 195
132.249.0.0/16 2152 195
132.249.104.0/22 2152 2153 195
132.249.212.128/27 11537 2153 195
132.249.233.128/25 11537 2153 195
132.249.246.0/27 11537 2153 195
132.249.252.0/27 11537 2153 195
132.249.252.64/27 11537 2153 195
132.249.252.128/25 11537 2153 195 + Announce - aggregate of 132.249.252.128/26 (11537 2153 195) and 132.249.252.192/26 (11537 2153 195)
132.249.252.128/26 11537 2153 195 - Withdrawn - aggregated with 132.249.252.192/26 (11537 2153 195)
132.249.252.192/26 11537 2153 195 - Withdrawn - aggregated with 132.249.252.128/26 (11537 2153 195)
153.105.0.0/16 2152 195
192.12.207.0/24 2152 195
192.31.21.0/24 2152 195
192.67.20.0/24 2152 195
192.67.81.0/24 2152 195
192.67.81.192/27 11537 2153 195
192.67.82.0/24 2152 195
192.67.82.32/27 11537 2153 195
192.67.82.96/27 11537 2153 195
192.207.234.0/24 2152 195
198.17.46.0/23 2152 195 + Announce - aggregate of 198.17.46.0/24 (2152 195) and 198.17.47.0/24 (2152 195)
198.17.46.0/24 2152 195 - Withdrawn - aggregated with 198.17.47.0/24 (2152 195)
198.17.47.0/24 2152 195 - Withdrawn - aggregated with 198.17.46.0/24 (2152 195)
198.17.101.0/24 2152 195
198.187.222.0/24 2152 195
198.187.222.128/26 11537 2153 195
198.187.222.224/27 11537 2153 195
198.188.136.0/26 11537 2153 195
198.202.64.0/18 2152 195 {195,64999,65501,65502}
198.202.64.0/19 2152 195 + Announce - aggregate of 198.202.64.0/20 (2152 195) and 198.202.80.0/20 (2152 195)
198.202.64.0/20 2152 195 - Withdrawn - aggregated with 198.202.80.0/20 (2152 195)
198.202.80.0/20 2152 195 - Withdrawn - aggregated with 198.202.64.0/20 (2152 195)
198.202.96.0/19 2152 195 {195,64999,65502}
198.202.96.0/20 2152 195
198.202.100.0/22 2152 2153 195
198.202.104.0/24 2152 2153 195
198.202.106.0/23 293 195
198.202.110.0/24 2152 2153 195
198.202.112.0/20 2152 195 195
198.202.112.0/21 2152 195
198.202.114.0/23 2152 2153 195
198.202.116.0/22 2152 2153 195 + Announce - aggregate of 198.202.116.0/23 (2152 2153 195) and 198.202.118.0/23 (2152 2153 195)
198.202.116.0/23 2152 2153 195 - Withdrawn - aggregated with 198.202.118.0/23 (2152 2153 195)
198.202.118.0/23 2152 2153 195 - Withdrawn - aggregated with 198.202.116.0/23 (2152 2153 195)
198.202.120.0/24 2152 2153 195
199.165.16.0/20 293 195
199.165.17.0/24 293 195 - Withdrawn - matching aggregate 199.165.16.0/20 293 195
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS195 25 More Specifics 38 Total Advertisements SDSC-AS, US
44.8.5.0/24 44.0.0.0/9
132.249.106.0/23 132.249.0.0/16
132.249.212.128/27 132.249.0.0/16
132.249.233.128/25 132.249.0.0/16
132.249.246.0/27 132.249.0.0/16
132.249.252.64/27 132.249.0.0/16
132.249.252.128/26 132.249.0.0/16
132.249.252.192/26 132.249.0.0/16
192.67.82.32/27 192.67.82.0/24
192.67.82.96/27 192.67.82.0/24
198.187.222.128/26 198.187.222.0/24
198.187.222.224/27 198.187.222.0/24
198.188.136.0/26 198.188.0.0/16
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
198.202.106.0/23 198.202.64.0/18
198.202.112.0/20 198.202.64.0/18
198.202.112.0/21 198.202.64.0/18
198.202.118.0/23 198.202.64.0/18
198.202.120.0/24 198.202.64.0/18
199.165.17.0/24 199.165.16.0/20
137.164.23.42/31 137.164.0.0/16
137.164.23.128/30 137.164.0.0/16
137.164.23.132/30 137.164.0.0/16
192.67.81.128/28 192.67.81.0/24
192.67.81.144/28 192.67.81.0/24
198.17.101.32/28 198.17.101.0/24
198.17.101.48/28 198.17.101.0/24
198.17.101.64/28 198.17.101.0/24
Prefixes added and withdrawn by this origin AS in the past 7 days.
- 137.164.23.42/31 Withdrawn
- 137.164.23.128/30 Withdrawn
- 137.164.23.132/30 Withdrawn
- 192.67.81.128/28 Withdrawn
- 192.67.81.144/28 Withdrawn
- 198.17.101.32/28 Withdrawn
- 198.17.101.48/28 Withdrawn
- 198.17.101.64/28 Withdrawn
whois: 402603
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
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: 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: TH60-ARIN
OrgTechName: Hutton, Thomas
OrgTechPhone: +1-858-534-5152
OrgTechEmail: thomas.e.hutton@gmail.com
OrgTechRef: https://rdap.arin.net/registry/entity/TH60-ARIN
OrgNOCHandle: TH60-ARIN
OrgNOCName: Hutton, Thomas
OrgNOCPhone: +1-858-534-5152
OrgNOCEmail: thomas.e.hutton@gmail.com
OrgNOCRef: https://rdap.arin.net/registry/entity/TH60-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
RTechHandle: TH60-ARIN
RTechName: Hutton, Thomas
RTechPhone: +1-858-534-5152
RTechEmail: thomas.e.hutton@gmail.com
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.
#