Report for 25958

Name

MC-INT - Marshfield Clinic Inc., 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.

25958 MC-INT - Marshfield Clinic Inc., US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS11796         AIRSTREAMCOMM-NET - Airstream Communications, LLC, US
    AS40264         TWC-40264-WI-MN-UPPERMI-C3 - Charter Communications LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
16357 AS25958        ORIGIN  Originate:       4352 /19.91  Transit:          0 /0.00  MC-INT - Marshfield Clinic Inc., 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       %
 8644 AS25958       MC-INT - Marshfield Clinic Inc., US               10      8      3      5      5  50.00%


  Prefix               AS Path                              Aggregation Suggestion
  192.236.16.0/21      4777 6939 7843 10796 40264 25958   
  192.236.16.0/22      4777 2516 20115 40264 25958 + Announce - aggregate of 192.236.16.0/23 (4777 2516 20115 40264 25958) and 192.236.18.0/23 (4777 2516 20115 40264 25958)
  192.236.16.0/24      4777 2516 20115 40264 25958 - Withdrawn - aggregated with 192.236.17.0/24 (4777 2516 20115 40264 25958)
  192.236.17.0/24      4777 2516 20115 40264 25958 - Withdrawn - aggregated with 192.236.16.0/24 (4777 2516 20115 40264 25958)
  192.236.18.0/24      4777 2516 20115 40264 25958 - Withdrawn - aggregated with 192.236.19.0/24 (4777 2516 20115 40264 25958)
  192.236.19.0/24      4777 2516 20115 40264 25958 - Withdrawn - aggregated with 192.236.18.0/24 (4777 2516 20115 40264 25958)
  192.236.20.0/23      4777 2516 3257 11796 25958 + Announce - aggregate of 192.236.20.0/24 (4777 2516 3257 11796 25958) and 192.236.21.0/24 (4777 2516 3257 11796 25958)
  192.236.20.0/24      4777 2516 3257 11796 25958 - Withdrawn - aggregated with 192.236.21.0/24 (4777 2516 3257 11796 25958)
  192.236.21.0/24      4777 2516 3257 11796 25958 - Withdrawn - aggregated with 192.236.20.0/24 (4777 2516 3257 11796 25958)
  192.236.22.0/23      4777 2516 20115 40264 25958 + Announce - aggregate of 192.236.22.0/24 (4777 2516 20115 40264 25958) and 192.236.23.0/24 (4777 2516 20115 40264 25958)
  192.236.22.0/24      4777 2516 20115 40264 25958 - Withdrawn - aggregated with 192.236.23.0/24 (4777 2516 20115 40264 25958)
  192.236.23.0/24      4777 2516 20115 40264 25958 - Withdrawn - aggregated with 192.236.22.0/24 (4777 2516 20115 40264 25958)
  192.236.25.0/24      4777 2516 20115 40264 25958   

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

AS25958   9 More Specifics   10 Total Advertisements   MC-INT - Marshfield Clinic Inc., US
    192.236.16.0/24               192.236.16.0/21
    192.236.17.0/24               192.236.16.0/21
    192.236.18.0/24               192.236.16.0/21
    192.236.19.0/24               192.236.16.0/21
    192.236.20.0/24               192.236.16.0/21
    192.236.21.0/24               192.236.16.0/21
    192.236.22.0/24               192.236.16.0/21
    192.236.23.0/24               192.236.16.0/21
    192.236.25.0/24               192.236.24.0/23

Whois Entry

whois: 402332

IANA has recorded AS25958 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS25958\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:       25958
             ASName:         MC-INT
             ASHandle:       AS25958
             RegDate:        2017-10-10
             Updated:        2017-10-10
             Ref:            https://rdap.arin.net/registry/autnum/25958
             
             
             OrgName:        Marshfield Clinic Inc.
             OrgId:          MMREF
             Address:        1000 North Oak Avenue
             City:           Marshfield
             StateProv:      WI
             PostalCode:     54449
             Country:        US
             RegDate:        1992-10-13
             Updated:        2024-11-12
             Ref:            https://rdap.arin.net/registry/entity/MMREF
             
             
             OrgTechHandle: ERDMA43-ARIN
             OrgTechName:   Erdman, Mark 
             OrgTechPhone:  +1-715-221-8305 
             OrgTechEmail:  erdman.mark@marshfieldclinic.org
             OrgTechRef:    https://rdap.arin.net/registry/entity/ERDMA43-ARIN
             
             OrgTechHandle: POPPY-ARIN
             OrgTechName:   Poppy, Ben 
             OrgTechPhone:  +1-715-221-8075 
             OrgTechEmail:  poppy.ben@marshfieldclinic.org
             OrgTechRef:    https://rdap.arin.net/registry/entity/POPPY-ARIN
             
             OrgTechHandle: TMG19-ARIN
             OrgTechName:   Gauerke, Todd Michael
             OrgTechPhone:  +1-715-383-4034 
             OrgTechEmail:  gauerke.todd@marshfieldclinic.org
             OrgTechRef:    https://rdap.arin.net/registry/entity/TMG19-ARIN
             
             OrgAbuseHandle: ERDMA43-ARIN
             OrgAbuseName:   Erdman, Mark 
             OrgAbusePhone:  +1-715-221-8305 
             OrgAbuseEmail:  erdman.mark@marshfieldclinic.org
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ERDMA43-ARIN
             
             OrgAbuseHandle: POPPY-ARIN
             OrgAbuseName:   Poppy, Ben 
             OrgAbusePhone:  +1-715-221-8075 
             OrgAbuseEmail:  poppy.ben@marshfieldclinic.org
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/POPPY-ARIN
             
             OrgAbuseHandle: TMG19-ARIN
             OrgAbuseName:   Gauerke, Todd Michael
             OrgAbusePhone:  +1-715-383-4034 
             OrgAbuseEmail:  gauerke.todd@marshfieldclinic.org
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/TMG19-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.
             #