Report for 1657

Name

LOUISVILLE - University of Louisville, 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.

1657 LOUISVILLE - University of Louisville, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS3714          KEC-NET - Kentucky Educational Computing Network, US
    AS49915         MEGAPORT - Megaport (UK) Limited, GB

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
1326  AS1657         ORIGIN  Originate:     196864 /14.41  Transit:          0 /0.00  LOUISVILLE - University of Louisville, 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       %
 4167 AS1657        LOUISVILLE - University of Louisville, US         14     12      0      2     12  85.71%


  Prefix               AS Path                              Aggregation Suggestion
  136.165.0.0/16       4608 7575 11537 10437 3714 1657   
  136.165.0.0/18       4608 7575 11537 10437 3714 1657 - Withdrawn - matching aggregate 136.165.0.0/16 4608 7575 11537 10437 3714 1657
  136.165.0.0/19       4608 7575 11537 10437 3714 1657 - Withdrawn - matching aggregate 136.165.0.0/16 4608 7575 11537 10437 3714 1657
  136.165.32.0/19      4608 7575 11537 10437 3714 1657 - Withdrawn - matching aggregate 136.165.0.0/16 4608 7575 11537 10437 3714 1657
  136.165.64.0/18      4608 7575 11537 10437 3714 1657 - Withdrawn - matching aggregate 136.165.0.0/16 4608 7575 11537 10437 3714 1657
  136.165.64.0/19      4608 7575 11537 10437 3714 1657 - Withdrawn - matching aggregate 136.165.0.0/16 4608 7575 11537 10437 3714 1657
  136.165.96.0/19      4608 7575 11537 10437 3714 1657 - Withdrawn - matching aggregate 136.165.0.0/16 4608 7575 11537 10437 3714 1657
  136.165.128.0/18     4608 7575 11537 10437 3714 1657 - Withdrawn - matching aggregate 136.165.0.0/16 4608 7575 11537 10437 3714 1657
  136.165.128.0/19     4608 7575 11537 10437 3714 1657 - Withdrawn - matching aggregate 136.165.0.0/16 4608 7575 11537 10437 3714 1657
  136.165.160.0/19     4608 7575 11537 10437 3714 1657 - Withdrawn - matching aggregate 136.165.0.0/16 4608 7575 11537 10437 3714 1657
  136.165.192.0/18     4608 7575 11537 10437 3714 1657 - Withdrawn - matching aggregate 136.165.0.0/16 4608 7575 11537 10437 3714 1657
  136.165.192.0/19     4608 7575 11537 10437 3714 1657 - Withdrawn - matching aggregate 136.165.0.0/16 4608 7575 11537 10437 3714 1657
  136.165.224.0/19     4608 7575 11537 10437 3714 1657 - Withdrawn - matching aggregate 136.165.0.0/16 4608 7575 11537 10437 3714 1657
  136.165.244.0/24     4777 2516 3257 49915 1657 1657   

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

AS1657   13 More Specifics   14 Total Advertisements   LOUISVILLE - University of Louisville, US
    136.165.0.0/18                136.165.0.0/16
    136.165.0.0/19                136.165.0.0/16
    136.165.32.0/19               136.165.0.0/16
    136.165.64.0/18               136.165.0.0/16
    136.165.64.0/19               136.165.0.0/16
    136.165.96.0/19               136.165.0.0/16
    136.165.128.0/18              136.165.0.0/16
    136.165.128.0/19              136.165.0.0/16
    136.165.160.0/19              136.165.0.0/16
    136.165.192.0/18              136.165.0.0/16
    136.165.192.0/19              136.165.0.0/16
    136.165.224.0/19              136.165.0.0/16
    136.165.244.0/24              136.165.0.0/16

Whois Entry

whois: 402613

IANA has recorded AS1657 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS1657\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:       1657
             ASName:         LOUISVILLE
             ASHandle:       AS1657
             RegDate:        1992-03-04
             Updated:        2021-10-28
             Ref:            https://rdap.arin.net/registry/autnum/1657
             
             
             OrgName:        University of Louisville
             OrgId:          UNIVER-261-Z
             Address:        Information Technology: Communications Services
             Address:        University of Louisville
             City:           Louisville
             StateProv:      KY
             PostalCode:     40292
             Country:        US
             RegDate:        2021-03-09
             Updated:        2021-03-09
             Ref:            https://rdap.arin.net/registry/entity/UNIVER-261-Z
             
             
             OrgAbuseHandle: UOFLH-ARIN
             OrgAbuseName:   UofL Hostmaster
             OrgAbusePhone:  +1-502-852-1776 
             OrgAbuseEmail:  hostmaster@hermes.louisville.edu
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/UOFLH-ARIN
             
             OrgTechHandle: UOFLH-ARIN
             OrgTechName:   UofL Hostmaster
             OrgTechPhone:  +1-502-852-1776 
             OrgTechEmail:  hostmaster@hermes.louisville.edu
             OrgTechRef:    https://rdap.arin.net/registry/entity/UOFLH-ARIN
             
             OrgNOCHandle: UOFLH-ARIN
             OrgNOCName:   UofL Hostmaster
             OrgNOCPhone:  +1-502-852-1776 
             OrgNOCEmail:  hostmaster@hermes.louisville.edu
             OrgNOCRef:    https://rdap.arin.net/registry/entity/UOFLH-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.
             #