Report for 6618

Name

JOHNS-122 - Johns Hopkins HealthCare, 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.

6618 JOHNS-122 - Johns Hopkins HealthCare, US

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS7018          ATT-INTERNET4 - AT&T Enterprises, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
58475 AS6618         ORIGIN  Originate:        256 /24.00  Transit:          0 /0.00  JOHNS-122 - Johns Hopkins HealthCare, 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       %
31108 AS6618        JOHNS-122 - Johns Hopkins HealthCare, US           1      0      0      1      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  12.181.141.0/24      4777 2497 7018 6618    

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

AS6618   1 More Specifics   1 Total Advertisements   JOHNS-122 - Johns Hopkins HealthCare, US
    12.181.141.0/24               12.0.0.0/8

Whois Entry

whois: 402591

IANA has recorded AS6618 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS6618\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:       6618
             ASName:         JOHNS-122
             ASHandle:       AS6618
             RegDate:        2009-10-13
             Updated:        2012-02-24
             Ref:            https://rdap.arin.net/registry/autnum/6618
             
             
             OrgName:        Johns Hopkins HealthCare
             OrgId:          JOHNS-122
             Address:        6704 Curtis Court
             City:           Glen Burnie
             StateProv:      MD
             PostalCode:     21060
             Country:        US
             RegDate:        2009-09-09
             Updated:        2011-09-24
             Ref:            https://rdap.arin.net/registry/entity/JOHNS-122
             
             
             OrgTechHandle: MWI227-ARIN
             OrgTechName:   William, McKain 
             OrgTechPhone:  +1-410-424-4642 
             OrgTechEmail:  infosec@jhhc.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/MWI227-ARIN
             
             OrgAbuseHandle: MWI227-ARIN
             OrgAbuseName:   William, McKain 
             OrgAbusePhone:  +1-410-424-4642 
             OrgAbuseEmail:  infosec@jhhc.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/MWI227-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.
             #