Report for 5050

Name

PSC-EXT - Pittsburgh Supercomputing 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.

5050 PSC-EXT - Pittsburgh Supercomputing Center, US

  Adjacency:    15  Upstream:     4  Downstream:    11
  Upstream Adjacent AS list
    AS3356          LEVEL3 - Level 3 Parent, LLC, US
    AS11164         INTERNET2-I2PX - Internet2, US
    AS174           COGENT-174 - Cogent Communications, LLC, US
    AS11537         INTERNET2-RESEARCH-EDU - Internet2, US
  Downstream Adjacent AS list
    AS18572         BVIU27 - Beaver Valley Intermediate Unit #27, US
    AS36407         CERT - Software Engineering Institute, US
    AS12118         WVU - West Virginia University, US
    AS63472         EINETWORK - eiNetwork, US
    AS9             CMU-ROUTER - Carnegie Mellon University, US
    AS19281         QUAD9-AS-1 - Quad9, US
    AS1207          PSCNET-HS-TEST-AS - Pittsburgh Supercomputing Center, US
    AS1206          PSCNET-HS-AS - Pittsburgh Supercomputing Center, US
    AS23102         RMU-EDU - Robert Morris University, US
    AS7925          WVNET - West Virginia Network for Educational Telecomputing, US
    AS3783          AIU-ALLEGHENY-CONNECT-RWAN - Allegheny Intermediate Unit, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
2687  AS5050         ORG+TRN Originate:      81152 /15.69  Transit:     202240 /14.37 PSC-EXT - Pittsburgh Supercomputing 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       %
 6114 AS5050        PSC-EXT - Pittsburgh Supercomputing Center, U     17      8      1     10      7  41.18%


  Prefix               AS Path                              Aggregation Suggestion
  104.128.208.0/20     4777 2497 11164 5050   
  147.72.249.0/24      4777 2497 11164 5050   
  147.73.0.0/16        4777 2497 11164 5050   
  147.73.0.0/24        4777 2497 11164 5050 - Withdrawn - matching aggregate 147.73.0.0/16 4777 2497 11164 5050
  147.73.3.0/24        4777 2497 11164 5050 - Withdrawn - matching aggregate 147.73.0.0/16 4777 2497 11164 5050
  147.73.4.0/24        4777 2497 11164 5050 - Withdrawn - matching aggregate 147.73.0.0/16 4777 2497 11164 5050
  147.73.5.0/24        4608 7575 11537 5050   
  147.73.6.0/24        4777 2497 11164 5050 - Withdrawn - matching aggregate 147.73.0.0/16 4777 2497 11164 5050
  147.73.7.0/24        4777 2497 174 5050     
  147.73.8.0/24        4777 2497 11164 5050 - Withdrawn - matching aggregate 147.73.0.0/16 4777 2497 11164 5050
  147.73.16.0/20       4777 2497 11164 5050 - Withdrawn - matching aggregate 147.73.0.0/16 4777 2497 11164 5050
  167.88.240.0/20      4777 2497 11164 5050   
  192.70.222.0/24      4777 2497 11164 5050   
  192.88.114.0/23      4777 2497 11164 5050 + Announce - aggregate of 192.88.114.0/24 (4777 2497 11164 5050) and 192.88.115.0/24 (4777 2497 11164 5050)
  192.88.114.0/24      4777 2497 11164 5050 - Withdrawn - aggregated with 192.88.115.0/24 (4777 2497 11164 5050)
  192.88.115.0/24      4777 2497 11164 5050 - Withdrawn - aggregated with 192.88.114.0/24 (4777 2497 11164 5050)
  192.112.102.0/24     4777 2497 11164 5050   
  192.231.244.0/24     4777 2497 11164 5050   

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

AS5050   9 More Specifics   17 Total Advertisements   PSC-EXT - Pittsburgh Supercomputing Center, US
    147.72.249.0/24               147.72.0.0/16
    147.73.0.0/24                 147.73.0.0/16
    147.73.3.0/24                 147.73.0.0/16
    147.73.4.0/24                 147.73.0.0/16
    147.73.5.0/24                 147.73.0.0/16
    147.73.6.0/24                 147.73.0.0/16
    147.73.7.0/24                 147.73.0.0/16
    147.73.8.0/24                 147.73.0.0/16
    147.73.16.0/20                147.73.0.0/16

Whois Entry

whois: 402332

IANA has recorded AS5050 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS5050\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:       5050
             ASName:         PSC-EXT
             ASHandle:       AS5050
             RegDate:        1995-03-29
             Updated:        2012-04-02
             Ref:            https://rdap.arin.net/registry/autnum/5050
             
             
             OrgName:        Pittsburgh Supercomputing Center
             OrgId:          PSC-Z
             Address:        300 S Craig St
             City:           Pittsburgh
             StateProv:      PA
             PostalCode:     15213
             Country:        US
             RegDate:        2008-05-29
             Updated:        2022-04-27
             Ref:            https://rdap.arin.net/registry/entity/PSC-Z
             
             
             OrgTechHandle: PN-ORG-ARIN
             OrgTechName:   Pittsburgh Supercomputing Center
             OrgTechPhone:  +1-412-268-4960 
             OrgTechEmail:  pscnet-admin@psc.edu
             OrgTechRef:    https://rdap.arin.net/registry/entity/PN-ORG-ARIN
             
             OrgAbuseHandle: SC274-ARIN
             OrgAbuseName:   Cunningham, Stephen 
             OrgAbusePhone:  +1-412-268-4960 
             OrgAbuseEmail:  cunningham@psc.edu
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/SC274-ARIN
             
             OrgTechHandle: SC274-ARIN
             OrgTechName:   Cunningham, Stephen 
             OrgTechPhone:  +1-412-268-4960 
             OrgTechEmail:  cunningham@psc.edu
             OrgTechRef:    https://rdap.arin.net/registry/entity/SC274-ARIN
             
             OrgAbuseHandle: PN-ORG-ARIN
             OrgAbuseName:   Pittsburgh Supercomputing Center
             OrgAbusePhone:  +1-412-268-4960 
             OrgAbuseEmail:  pscnet-admin@psc.edu
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/PN-ORG-ARIN
             
             RTechHandle: PN-ORG-ARIN
             RTechName:   Pittsburgh Supercomputing Center
             RTechPhone:  +1-412-268-4960 
             RTechEmail:  pscnet-admin@psc.edu
             RTechRef:    https://rdap.arin.net/registry/entity/PN-ORG-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.
             #