Report for 36375

Name

UMICH-AS-5 - University of Michigan, 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.

36375 UMICH-AS-5 - University of Michigan, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS11537         INTERNET2-RESEARCH-EDU - Internet2, US
    AS237           MERIT-AS-14 - Merit Network Inc., US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
518   AS36375        ORIGIN  Originate:     826496 /12.34  Transit:          0 /0.00  UMICH-AS-5 - University of Michigan, 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       %
 8771 AS36375       UMICH-AS-5 - University of Michigan, US           20      8      3     15      5  25.00%


  Prefix               AS Path                              Aggregation Suggestion
  35.0.0.0/14          4608 7575 11537 36375 + Announce - aggregate of 35.0.0.0/15 (4608 7575 11537 36375) and 35.2.0.0/15 (4608 7575 11537 36375)
  35.0.0.0/16          4608 7575 11537 36375 - Withdrawn - aggregated with 35.1.0.0/16 (4608 7575 11537 36375)
  35.1.0.0/16          4608 7575 11537 36375 - Withdrawn - aggregated with 35.0.0.0/16 (4608 7575 11537 36375)
  35.2.0.0/16          4608 7575 11537 36375 - Withdrawn - aggregated with 35.3.0.0/16 (4608 7575 11537 36375)
  35.3.0.0/16          4608 7575 11537 36375 - Withdrawn - aggregated with 35.2.0.0/16 (4608 7575 11537 36375)
  35.4.0.0/15          4608 7575 11537 36375 + Announce - aggregate of 35.4.0.0/16 (4608 7575 11537 36375) and 35.5.0.0/16 (4608 7575 11537 36375)
  35.4.0.0/16          4608 7575 11537 36375 - Withdrawn - aggregated with 35.5.0.0/16 (4608 7575 11537 36375)
  35.5.0.0/16          4608 7575 11537 36375 - Withdrawn - aggregated with 35.4.0.0/16 (4608 7575 11537 36375)
  35.6.0.0/16          4608 7575 11537 36375   
  35.7.0.0/18          4608 7575 11537 36375   
  35.7.128.0/18        4608 7575 11537 36375   
  67.194.0.0/16        4608 7575 11537 36375   
  141.211.0.0/16       4608 7575 11537 36375   
  141.212.0.0/15       4608 7575 11537 36375 + Announce - aggregate of 141.212.0.0/16 (4608 7575 11537 36375) and 141.213.0.0/16 (4608 7575 11537 36375)
  141.212.0.0/16       4608 7575 11537 36375 - Withdrawn - aggregated with 141.213.0.0/16 (4608 7575 11537 36375)
  141.213.0.0/16       4608 7575 11537 36375 - Withdrawn - aggregated with 141.212.0.0/16 (4608 7575 11537 36375)
  141.214.0.0/16       4608 7575 11537 36375   
  192.12.80.0/24       4608 7575 11537 36375   
  192.41.232.0/23      4608 7575 11537 36375   
  192.231.253.0/24     4608 7575 11537 36375   
  198.108.8.0/21       4608 7575 11537 36375   
  198.111.181.0/25     4777 2500 7660 11537 36375   
  207.75.144.0/20      4608 7575 11537 36375   

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

AS36375   13 More Specifics   20 Total Advertisements   UMICH-AS-5 - University of Michigan, US
    35.0.0.0/16                   35.0.0.0/12
    35.1.0.0/16                   35.0.0.0/12
    35.2.0.0/16                   35.0.0.0/12
    35.3.0.0/16                   35.0.0.0/12
    35.4.0.0/16                   35.0.0.0/12
    35.5.0.0/16                   35.0.0.0/12
    35.6.0.0/16                   35.0.0.0/12
    35.7.0.0/18                   35.0.0.0/12
    35.7.128.0/18                 35.0.0.0/12
    192.41.232.0/23               192.41.232.0/22
    198.108.8.0/21                198.108.0.0/14
    198.111.181.0/25              198.108.0.0/14
    207.75.144.0/20               207.72.0.0/14

Whois Entry

whois: 402332

IANA has recorded AS36375 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS36375\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:       36375
             ASName:         UMICH-AS-5
             ASHandle:       AS36375
             RegDate:        2005-12-16
             Updated:        2012-03-02
             Ref:            https://rdap.arin.net/registry/autnum/36375
             
             
             OrgName:        University of Michigan
             OrgId:          UNIVER-118
             Address:        IT Communications Services
             Address:        4251 Plymouth Road, Suite 2-2200
             City:           Ann Arbor
             StateProv:      MI
             PostalCode:     48105-3640
             Country:        US
             RegDate:        1985-07-23
             Updated:        2017-01-28
             Comment:        For DMCA info see http://www.umich.edu/~itua/copyright/
             Ref:            https://rdap.arin.net/registry/entity/UNIVER-118
             
             
             OrgTechHandle: UA11-ORG-ARIN
             OrgTechName:   UMnet Administration
             OrgTechPhone:  +1-734-647-4200 
             OrgTechEmail:  umnet-admin-team@umich.edu
             OrgTechRef:    https://rdap.arin.net/registry/entity/UA11-ORG-ARIN
             
             OrgAbuseHandle: IAI8-ARIN
             OrgAbuseName:   IT Abuse Investigation
             OrgAbusePhone:  +1-734-764-4357 
             OrgAbuseEmail:  report-abuse@umich.edu
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/IAI8-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.
             #