Report for 26305

Name

ASN-SSM - SSM Health Care, 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.

26305 ASN-SSM - SSM Health Care, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS22677         CHARTER-22677-MO-IL-C3 - Charter Communications LLC, US
    AS7018          ATT-INTERNET4 - AT&T Enterprises, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
3022  AS26305        ORIGIN  Originate:      70144 /15.90  Transit:          0 /0.00  ASN-SSM - SSM Health Care, 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       %
 6273 AS26305       ASN-SSM - SSM Health Care, US                      9      7      0      2      7  77.78%


  Prefix               AS Path                              Aggregation Suggestion
  67.66.136.0/21       4777 2497 7018 26305 26305   
  67.66.136.0/23       4777 2497 7018 26305 26305 - Withdrawn - matching aggregate 67.66.136.0/21 4777 2497 7018 26305 26305
  67.66.140.0/23       4777 2497 7018 26305 26305 - Withdrawn - matching aggregate 67.66.136.0/21 4777 2497 7018 26305 26305
  67.66.142.0/24       4777 2497 7018 26305 26305 - Withdrawn - matching aggregate 67.66.136.0/21 4777 2497 7018 26305 26305
  165.104.0.0/16       4777 2497 7018 26305 26305   
  165.104.0.0/23       4777 2497 7018 26305 26305 - Withdrawn - matching aggregate 165.104.0.0/16 4777 2497 7018 26305 26305
  165.104.2.0/24       4777 2497 7018 26305 26305 - Withdrawn - matching aggregate 165.104.0.0/16 4777 2497 7018 26305 26305
  165.104.250.0/24     4777 2497 7018 26305 26305 - Withdrawn - matching aggregate 165.104.0.0/16 4777 2497 7018 26305 26305
  165.104.251.0/24     4777 2497 7018 26305 26305 - Withdrawn - matching aggregate 165.104.0.0/16 4777 2497 7018 26305 26305

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

AS26305   8 More Specifics   9 Total Advertisements   ASN-SSM - SSM Health Care, US
    67.66.136.0/21                67.64.0.0/14
    67.66.136.0/23                67.64.0.0/14
    67.66.140.0/23                67.64.0.0/14
    67.66.142.0/24                67.64.0.0/14
    165.104.0.0/23                165.104.0.0/16
    165.104.2.0/24                165.104.0.0/16
    165.104.250.0/24              165.104.0.0/16
    165.104.251.0/24              165.104.0.0/16
    75.128.171.0/24               75.128.0.0/12

Prefixes added and withdrawn by this origin AS in the past 7 days.

    - 75.128.171.0/24             Withdrawn

Whois Entry

whois: 402332

IANA has recorded AS26305 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS26305\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:       26305
             ASName:         ASN-SSM
             ASHandle:       AS26305
             RegDate:        2002-08-16
             Updated:        2012-03-02
             Ref:            https://rdap.arin.net/registry/autnum/26305
             
             
             OrgName:        SSM Health Care
             OrgId:          SHC-4
             Address:        SSM Data Center
             Address:        7980 Clayton Rd, Suite 401
             City:           St. Louis
             StateProv:      MO
             PostalCode:     63117
             Country:        US
             RegDate:        1993-05-12
             Updated:        2022-07-20
             Ref:            https://rdap.arin.net/registry/entity/SHC-4
             
             
             OrgTechHandle: PEISS1-ARIN
             OrgTechName:   Peissig, Ryan 
             OrgTechPhone:  +1-920-420-4092 
             OrgTechEmail:  ryan.peissig@ssmhealth.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/PEISS1-ARIN
             
             OrgTechHandle: DS1663-ARIN
             OrgTechName:   Steinberg, Don 
             OrgTechPhone:  +1-314-768-5148 
             OrgTechEmail:  Don.Steinberg@ssmhealth.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/DS1663-ARIN
             
             OrgAbuseHandle: DS1663-ARIN
             OrgAbuseName:   Steinberg, Don 
             OrgAbusePhone:  +1-314-768-5148 
             OrgAbuseEmail:  Don.Steinberg@ssmhealth.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/DS1663-ARIN
             
             OrgAbuseHandle: PEISS1-ARIN
             OrgAbuseName:   Peissig, Ryan 
             OrgAbusePhone:  +1-920-420-4092 
             OrgAbuseEmail:  ryan.peissig@ssmhealth.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/PEISS1-ARIN
             
             RTechHandle: MS2156-ARIN
             RTechName:   Suter, Mike 
             RTechPhone:  +1-636-923-8175 
             RTechEmail:  mike-a@suternet.com
             RTechRef:    https://rdap.arin.net/registry/entity/MS2156-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.
             #