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 AS4637) 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

  Adjacency:     4  Upstream:     1  Downstream:     3
  Upstream Adjacent AS list
    AS2152    CSUNET-NW - California State University Network
  Downstream Adjacent AS list
    AS25810   ADEC - American Distance Education Consortium
    AS1909    ALPHA-NAP-AS - San Diego Supercomputer Center
    AS2641    TSRI-AS - The Scripps Research Institute

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
973   AS195    ORG+TRN Originate:     181248 /14.53  Transit:      71936 /15.87 SDSC-AS - San Diego Supercomputer Center

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       %
  808 AS195   SDSC-AS - San Diego Supercomputer Center     29     18      2     13     16  55.17%


  Prefix               AS Path                              Aggregation Suggestion
  132.249.0.0/16       4637 11164 2152 195    
  153.105.0.0/16       4637 11164 2152 195    
  192.12.207.0/24      4637 11164 2152 195    
  192.31.21.0/24       4637 11164 2152 195    
  192.31.153.0/24      4637 11164 2152 195    
  192.67.20.0/23       4637 11164 2152 195  + Announce - aggregate of 192.67.20.0/24 (4637 11164 2152 195) and 192.67.21.0/24 (4637 11164 2152 195)
  192.67.20.0/24       4637 11164 2152 195  - Withdrawn - aggregated with 192.67.21.0/24 (4637 11164 2152 195)
  192.67.21.0/24       4637 11164 2152 195  - Withdrawn - aggregated with 192.67.20.0/24 (4637 11164 2152 195)
  192.67.81.0/24       4637 11164 2152 195    
  192.67.82.0/24       4637 11164 2152 195    
  198.17.46.0/23       4637 11164 2152 195  + Announce - aggregate of 198.17.46.0/24 (4637 11164 2152 195) and 198.17.47.0/24 (4637 11164 2152 195)
  198.17.46.0/24       4637 11164 2152 195  - Withdrawn - aggregated with 198.17.47.0/24 (4637 11164 2152 195)
  198.17.47.0/24       4637 11164 2152 195  - Withdrawn - aggregated with 198.17.46.0/24 (4637 11164 2152 195)
  198.17.101.0/24      4637 11164 2152 195 195   
  198.202.64.0/18      4637 11164 2152 195    
  198.202.64.0/20      4637 11164 2152 195  - Withdrawn - matching aggregate 198.202.64.0/18 4637 11164 2152 195
  198.202.64.0/24      4637 11164 2152 195  - Withdrawn - matching aggregate 198.202.64.0/18 4637 11164 2152 195
  198.202.65.0/24      4637 11164 2152 195  - Withdrawn - matching aggregate 198.202.64.0/18 4637 11164 2152 195
  198.202.66.0/24      4637 11164 2152 195  - Withdrawn - matching aggregate 198.202.64.0/18 4637 11164 2152 195
  198.202.67.0/24      4637 11164 2152 195  - Withdrawn - matching aggregate 198.202.64.0/18 4637 11164 2152 195
  198.202.68.0/24      4637 11164 2152 195  - Withdrawn - matching aggregate 198.202.64.0/18 4637 11164 2152 195
  198.202.69.0/24      4637 11164 2152 195  - Withdrawn - matching aggregate 198.202.64.0/18 4637 11164 2152 195
  198.202.70.0/24      4637 11164 2152 195  - Withdrawn - matching aggregate 198.202.64.0/18 4637 11164 2152 195
  198.202.79.0/24      4637 3356 3356 3356 2152 195   
  198.202.80.0/20      4637 11164 2152 195  - Withdrawn - matching aggregate 198.202.64.0/18 4637 11164 2152 195
  198.202.96.0/19      4637 11164 2152 195  - Withdrawn - matching aggregate 198.202.64.0/18 4637 11164 2152 195
  198.202.96.0/20      4637 11164 2152 195  - Withdrawn - matching aggregate 198.202.64.0/18 4637 11164 2152 195
  198.202.112.0/20     4637 11164 2152 195  - Withdrawn - matching aggregate 198.202.64.0/18 4637 11164 2152 195
  199.165.16.0/20      4637 11164 2152 195    
  199.165.16.0/24      4637 11164 2152 195  - Withdrawn - matching aggregate 199.165.16.0/20 4637 11164 2152 195
  199.165.17.0/24      4637 11164 2152 195  - Withdrawn - matching aggregate 199.165.16.0/20 4637 11164 2152 195

Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.

AS195   15 More Specifics   29 Total Advertisements   SDSC-AS - San Diego Supercomputer Center
    198.202.64.0/20               198.202.64.0/18
    198.202.64.0/24               198.202.64.0/18
    198.202.65.0/24               198.202.64.0/18
    198.202.66.0/24               198.202.64.0/18
    198.202.67.0/24               198.202.64.0/18
    198.202.68.0/24               198.202.64.0/18
    198.202.69.0/24               198.202.64.0/18
    198.202.70.0/24               198.202.64.0/18
    198.202.79.0/24               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
    198.202.112.0/20              198.202.64.0/18
    199.165.16.0/24               199.165.16.0/20
    199.165.17.0/24               199.165.16.0/20

Whois Entry

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/
             #
             # 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@sdslug.org
             OrgTechRef:    https://rdap.arin.net/registry/entity/TH60-ARIN
             
             OrgNOCHandle: TH60-ARIN
             OrgNOCName:   Hutton, Thomas 
             OrgNOCPhone:  +1-858-534-5152 
             OrgNOCEmail:  hutton@sdslug.org
             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@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.
             #