Report for 19312

Name

JOHN-MUIR-HEALTH - John Muir Health, 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 AS6447) 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.

19312 JOHN-MUIR-HEALTH, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS7018          ATT-INTERNET4, US
    AS3356          LEVEL3, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
44599 AS19312        ORIGIN  Originate:        768 /22.42  Transit:          0 /0.00  JOHN-MUIR-HEALTH, 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       %
35302 AS19312       JOHN-MUIR-HEALTH, US                               3      0      0      3      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  12.25.162.0/24       7018 19312             
  50.59.177.0/24       6939 3356 19312        
  206.107.211.0/24     6939 3356 19312        

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

AS19312   3 More Specifics   3 Total Advertisements   JOHN-MUIR-HEALTH, US
    12.25.162.0/24                12.0.0.0/8
    50.59.177.0/24                50.58.0.0/15
    206.107.211.0/24              206.104.0.0/14

Whois Entry

whois: 402590

IANA has recorded AS19312 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS19312\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:       19312
             ASName:         JOHN-MUIR-HEALTH
             ASHandle:       AS19312
             RegDate:        2006-06-28
             Updated:        2021-01-19
             Ref:            https://rdap.arin.net/registry/autnum/19312
             
             
             OrgName:        John Muir Health
             OrgId:          JMH-5
             Address:        1400 Treat Blvd.
             City:           Walnut Creek
             StateProv:      CA
             PostalCode:     94596
             Country:        US
             RegDate:        2006-06-16
             Updated:        2011-09-24
             Ref:            https://rdap.arin.net/registry/entity/JMH-5
             
             
             OrgTechHandle: JHA244-ARIN
             OrgTechName:   Hardy, Jeremy 
             OrgTechPhone:  +1-925-947-5349 
             OrgTechEmail:  jeremy.hardy@johnmuirhealth.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/JHA244-ARIN
             
             OrgAbuseHandle: JHA244-ARIN
             OrgAbuseName:   Hardy, Jeremy 
             OrgAbusePhone:  +1-925-947-5349 
             OrgAbuseEmail:  jeremy.hardy@johnmuirhealth.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/JHA244-ARIN
             
             OrgNOCHandle: NOC2160-ARIN
             OrgNOCName:   Network Operations Center
             OrgNOCPhone:  +1-925-947-4466 
             OrgNOCEmail:  ops2@johnmuirhealth.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/NOC2160-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.
             #