Report for 195

Name

SDSC-AS - San Diego Supercomputer Center, US

AS Adjacency Report

In the context of this report "Upstream" indicates that there is an adjacent AS that lines between the BGP table collection point (in this case at AS2.0) and the specified AS. Similarly, "Downstream" refers to an adjacent AS that lies beyond the specified AS. This upstream / downstream categorisation is strictly a description relative topology, and should not be confused with provider / customer / peer inter-AS relationships.

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
    AS1909          CAIDA - San Diego Supercomputer Center, US
    AS12148         CLEMSONU - Clemson University, US
    AS2641          TSRI-AS - The Scripps Research Institute, US
    AS22213         SALK-AS - Salk Institute, US
    AS46985         HPWREN - The Regents of the University of California - University of California, San Diego., US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
1371  AS195          ORG+TRN Originate:     187904 /14.48  Transit:       9216 /18.83 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       %
 4389 AS195         SDSC-AS - San Diego Supercomputer Center, US      33     13      2     22     11  33.33%


  Prefix               AS Path                              Aggregation Suggestion
  44.8.5.0/24          4608 7575 1299 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       4608 7575 2153 195     
  132.249.104.0/22     4608 7575 2153 195   - Withdrawn - matching aggregate 132.249.0.0/16 4608 7575 2153 195
  132.249.233.128/25   4777 2500 7660 11537 2153 195   
  153.105.0.0/16       4608 7575 2153 195     
  192.12.207.0/24      4608 7575 2153 195     
  192.31.21.0/24       4608 7575 2153 195     
  192.67.20.0/24       4608 7575 2153 195     
  192.67.81.0/24       4608 7575 2153 195     
  192.67.82.0/24       4608 7575 2153 195     
  192.207.234.0/24     4777 2516 2152 195     
  198.17.46.0/23       4608 7575 2153 195   + Announce - aggregate of 198.17.46.0/24 (4608 7575 2153 195) and 198.17.47.0/24 (4608 7575 2153 195)
  198.17.46.0/24       4608 7575 2153 195   - Withdrawn - aggregated with 198.17.47.0/24 (4608 7575 2153 195)
  198.17.47.0/24       4608 7575 2153 195   - Withdrawn - aggregated with 198.17.46.0/24 (4608 7575 2153 195)
  198.17.101.0/24      4777 2516 2152 195     
  198.187.222.0/24     4777 2516 2152 195     
  198.202.64.0/18      4608 7575 24490 24490 23855 7660 2907 2153 195 {195}   
  198.202.64.0/19      4608 7575 2153 195   + Announce - aggregate of 198.202.64.0/20 (4608 7575 2153 195) and 198.202.80.0/20 (4608 7575 2153 195)
  198.202.64.0/20      4608 7575 2153 195   - Withdrawn - aggregated with 198.202.80.0/20 (4608 7575 2153 195)
  198.202.80.0/20      4608 7575 2153 195   - Withdrawn - aggregated with 198.202.64.0/20 (4608 7575 2153 195)
  198.202.96.0/19      4608 7575 24490 24490 23855 7660 2907 2153 195 {195} - Withdrawn - matching aggregate 198.202.64.0/18 4608 7575 24490 24490 23855 7660 2907 2153 195 {195}
  198.202.96.0/20      4608 7575 2153 195     
  198.202.100.0/22     4608 7575 2153 195   - Withdrawn - matching aggregate 198.202.96.0/20 4608 7575 2153 195
  198.202.104.0/24     4608 7575 2153 195   - Withdrawn - matching aggregate 198.202.96.0/20 4608 7575 2153 195
  198.202.110.0/24     4608 7575 2153 195   - Withdrawn - matching aggregate 198.202.96.0/20 4608 7575 2153 195
  198.202.112.0/20     4608 7575 2153 195 195   
  198.202.112.0/21     4608 7575 2153 195     
  198.202.114.0/23     4608 7575 2153 195   - Withdrawn - matching aggregate 198.202.112.0/21 4608 7575 2153 195
  198.202.116.0/23     4608 7575 2153 195   - Withdrawn - matching aggregate 198.202.112.0/21 4608 7575 2153 195
  198.202.118.0/23     4608 7575 2153 195   - Withdrawn - matching aggregate 198.202.112.0/21 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

Whois Entry

whois: 402591

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/
             #
             # Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
             #
             
             
             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:  hutton@ucsd.edu
             OrgTechRef:    https://rdap.arin.net/registry/entity/TH60-ARIN
             
             OrgNOCHandle: TH60-ARIN
             OrgNOCName:   Hutton, Thomas 
             OrgNOCPhone:  +1-858-534-5152 
             OrgNOCEmail:  hutton@ucsd.edu
             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:  hutton@ucsd.edu
             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.
             #