Report for 25845

Name

VIRGINIA-MASON - Virginia Mason 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.

25845 VIRGINIA-MASON - Virginia Mason Medical Center, US

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS3356          LEVEL3 - Level 3 Parent, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
14577 AS25845        ORIGIN  Originate:       5376 /19.61  Transit:          0 /0.00  VIRGINIA-MASON - Virginia Mason 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       %
21782 AS25845       VIRGINIA-MASON - Virginia Mason Medical Cente      3      1      0      2      1  33.33%


  Prefix               AS Path                              Aggregation Suggestion
  192.152.45.0/24      4777 2516 3356 25845   
  204.147.208.0/20     4777 2516 3356 25845   
  204.147.220.0/22     4777 2516 3356 25845 - Withdrawn - matching aggregate 204.147.208.0/20 4777 2516 3356 25845

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

AS25845   1 More Specifics   3 Total Advertisements   VIRGINIA-MASON - Virginia Mason Medical Center, US
    204.147.220.0/22              204.147.208.0/20

Whois Entry

whois: 402603

IANA has recorded AS25845 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS25845\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:       25845
             ASName:         VIRGINIA-MASON
             ASHandle:       AS25845
             RegDate:        2002-05-17
             Updated:        2020-10-07
             Ref:            https://rdap.arin.net/registry/autnum/25845
             
             
             OrgName:        Virginia Mason Medical Center
             OrgId:          VMMC
             Address:        1100 Olive Way, Suite 750
             City:           Seattle
             StateProv:      WA
             PostalCode:     98101
             Country:        US
             RegDate:        1992-04-03
             Updated:        2025-09-19
             Ref:            https://rdap.arin.net/registry/entity/VMMC
             
             
             OrgNOCHandle: NETWO6568-ARIN
             OrgNOCName:   Network Operations
             OrgNOCPhone:  +1-206-515-5855 
             OrgNOCEmail:  vmnse@vmmc.org
             OrgNOCRef:    https://rdap.arin.net/registry/entity/NETWO6568-ARIN
             
             OrgAbuseHandle: NETWO6568-ARIN
             OrgAbuseName:   Network Operations
             OrgAbusePhone:  +1-206-515-5855 
             OrgAbuseEmail:  vmnse@vmmc.org
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO6568-ARIN
             
             OrgTechHandle: NETWO6568-ARIN
             OrgTechName:   Network Operations
             OrgTechPhone:  +1-206-515-5855 
             OrgTechEmail:  vmnse@vmmc.org
             OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO6568-ARIN
             
             OrgAbuseHandle: CNA91-ARIN
             OrgAbuseName:   CommonSpirit Network Abuse
             OrgAbusePhone:  +1-888-307-0222 
             OrgAbuseEmail:  network-abuse@commonspirit.org
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/CNA91-ARIN
             
             RTechHandle: NETWO6568-ARIN
             RTechName:   Network Operations
             RTechPhone:  +1-206-515-5855 
             RTechEmail:  vmnse@vmmc.org
             RTechRef:    https://rdap.arin.net/registry/entity/NETWO6568-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.
             #