Report for 25609

Name

DMC - Detroit Medical 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.

25609 DMC - Detroit Medical Center, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS237           MERIT-AS-14 - Merit Network Inc., US
    AS7018          ATT-INTERNET4 - AT&T Enterprises, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
4220  AS25609        ORIGIN  Originate:      52992 /16.31  Transit:          0 /0.00  DMC - Detroit Medical 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       %
15988 AS25609       DMC - Detroit Medical Center, US                  30      4      2     28      2   6.67%


  Prefix               AS Path                              Aggregation Suggestion
  155.139.1.0/24       4777 2497 7018 25609   
  155.139.3.0/24       4777 2497 7018 25609   
  155.139.4.0/24       4777 2497 7018 25609   
  155.139.7.0/24       4777 2497 7018 25609   
  155.139.8.0/24       4777 2497 7018 25609   
  155.139.16.0/21      4777 2497 7018 25609   
  155.139.30.0/24      4777 2497 7018 25609   
  155.139.32.0/22      4777 2497 7018 25609   
  155.139.37.0/24      4777 2497 7018 25609   
  155.139.40.0/24      4777 2497 7018 25609   
  155.139.42.0/23      4777 2497 7018 25609   
  155.139.44.0/22      4777 2497 7018 25609 + Announce - aggregate of 155.139.44.0/23 (4777 2497 7018 25609) and 155.139.46.0/23 (4777 2497 7018 25609)
  155.139.44.0/23      4777 2497 7018 25609 - Withdrawn - aggregated with 155.139.46.0/23 (4777 2497 7018 25609)
  155.139.46.0/23      4777 2497 7018 25609 - Withdrawn - aggregated with 155.139.44.0/23 (4777 2497 7018 25609)
  155.139.48.0/20      4777 2497 7018 25609   
  155.139.64.0/20      4777 2497 7018 25609   
  155.139.80.0/21      4777 2497 7018 25609   
  155.139.88.0/22      4777 2497 7018 25609   
  155.139.94.0/23      4777 2497 7018 25609   
  155.139.96.0/21      4777 2497 7018 25609   
  155.139.112.0/21     4777 2497 7018 25609   
  155.139.136.0/21     4777 2497 7018 25609   
  155.139.144.0/20     4777 2497 7018 25609   
  155.139.160.0/19     4777 2497 7018 25609   
  155.139.192.0/21     4777 2497 7018 25609   
  155.139.200.0/22     4777 2497 7018 25609   
  155.139.204.0/24     4777 2497 7018 25609   
  155.139.206.0/23     4777 2497 7018 25609 + Announce - aggregate of 155.139.206.0/24 (4777 2497 7018 25609) and 155.139.207.0/24 (4777 2497 7018 25609)
  155.139.206.0/24     4777 2497 7018 25609 - Withdrawn - aggregated with 155.139.207.0/24 (4777 2497 7018 25609)
  155.139.207.0/24     4777 2497 7018 25609 - Withdrawn - aggregated with 155.139.206.0/24 (4777 2497 7018 25609)
  155.139.208.0/20     4777 2497 7018 25609   
  155.139.224.0/19     4777 2497 7018 25609   

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

AS25609   30 More Specifics   30 Total Advertisements   DMC - Detroit Medical Center, US
    155.139.1.0/24                155.139.0.0/16
    155.139.3.0/24                155.139.0.0/16
    155.139.4.0/24                155.139.0.0/16
    155.139.7.0/24                155.139.0.0/16
    155.139.8.0/24                155.139.0.0/16
    155.139.16.0/21               155.139.0.0/16
    155.139.30.0/24               155.139.0.0/16
    155.139.32.0/22               155.139.0.0/16
    155.139.37.0/24               155.139.0.0/16
    155.139.40.0/24               155.139.0.0/16
    155.139.42.0/23               155.139.0.0/16
    155.139.44.0/23               155.139.0.0/16
    155.139.46.0/23               155.139.0.0/16
    155.139.48.0/20               155.139.0.0/16
    155.139.64.0/20               155.139.0.0/16
    155.139.80.0/21               155.139.0.0/16
    155.139.88.0/22               155.139.0.0/16
    155.139.94.0/23               155.139.0.0/16
    155.139.96.0/21               155.139.0.0/16
    155.139.112.0/21              155.139.0.0/16
    155.139.136.0/21              155.139.0.0/16
    155.139.144.0/20              155.139.0.0/16
    155.139.160.0/19              155.139.0.0/16
    155.139.192.0/21              155.139.0.0/16
    155.139.200.0/22              155.139.0.0/16
    155.139.204.0/24              155.139.0.0/16
    155.139.206.0/24              155.139.0.0/16
    155.139.207.0/24              155.139.0.0/16
    155.139.208.0/20              155.139.0.0/16
    155.139.224.0/19              155.139.0.0/16

Whois Entry

whois: 402591

IANA has recorded AS25609 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS25609\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:       25609
             ASName:         DMC
             ASHandle:       AS25609
             RegDate:        2002-04-08
             Updated:        2002-04-08
             Ref:            https://rdap.arin.net/registry/autnum/25609
             
             
             OrgName:        Detroit Medical Center
             OrgId:          DMC-43
             Address:        901 Wilshire Blvd
             City:           Troy
             StateProv:      MI
             PostalCode:     48084
             Country:        US
             RegDate:        2002-04-08
             Updated:        2012-10-10
             Ref:            https://rdap.arin.net/registry/entity/DMC-43
             
             
             OrgTechHandle: JG999-ARIN
             OrgTechName:   Garland, Judith 
             OrgTechPhone:  +1-313-966-2339 
             OrgTechEmail:  jgarland@dmc.org
             OrgTechRef:    https://rdap.arin.net/registry/entity/JG999-ARIN
             
             OrgAbuseHandle: JG999-ARIN
             OrgAbuseName:   Garland, Judith 
             OrgAbusePhone:  +1-313-966-2339 
             OrgAbuseEmail:  jgarland@dmc.org
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/JG999-ARIN
             
             RTechHandle: JG999-ARIN
             RTechName:   Garland, Judith 
             RTechPhone:  +1-313-966-2339 
             RTechEmail:  jgarland@dmc.org
             RTechRef:    https://rdap.arin.net/registry/entity/JG999-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.
             #