Report for 27015

Name

FMCH-27015 - FRESENIUS MEDICAL CARE HOLDINGS, 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.

27015 FMCH-27015 - FRESENIUS MEDICAL CARE HOLDINGS, INC, US

  Adjacency:     4  Upstream:     4  Downstream:     0
  Upstream Adjacent AS list
    AS13335         CLOUDFLARENET - Cloudflare, Inc., US
    AS3356          LEVEL3 - Level 3 Parent, LLC, US
    AS6461          ZAYO-6461 - Zayo Bandwidth, US
    AS7018          ATT-INTERNET4 - AT&T Enterprises, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
21623 AS27015        ORIGIN  Originate:       2816 /20.54  Transit:          0 /0.00  FMCH-27015 - FRESENIUS MEDICAL CARE HOLDINGS, 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       %
38192 AS27015       FMCH-27015 - FRESENIUS MEDICAL CARE HOLDINGS,      8      0      0      8      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  12.172.67.0/24       4777 2497 7018 27015   
  67.132.8.0/24        4777 2497 3356 27015 27015 27015 27015 27015   
  72.166.43.0/24       4777 2497 3356 27015 27015 27015 27015 27015   
  144.121.61.0/24      4608 13335 27015       
  199.38.52.0/22       4608 13335 27015       
  199.38.52.0/24       4777 2497 7018 27015   
  199.38.53.0/24       4777 2497 6461 27015   
  199.38.54.0/24       4777 2497 7018 27015   

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

AS27015   7 More Specifics   8 Total Advertisements   FMCH-27015 - FRESENIUS MEDICAL CARE HOLDINGS, INC, US
    12.172.67.0/24                12.0.0.0/8
    67.132.8.0/24                 67.128.0.0/13
    72.166.43.0/24                72.166.0.0/16
    144.121.61.0/24               144.121.0.0/16
    199.38.52.0/24                199.38.52.0/22
    199.38.53.0/24                199.38.52.0/22
    199.38.54.0/24                199.38.52.0/22
    199.38.55.0/24                199.38.52.0/22

Prefixes added and withdrawn by this origin AS in the past 7 days.

    + 199.38.52.0/22              Announced
    - 199.38.55.0/24              Withdrawn

Whois Entry

whois: 402332

IANA has recorded AS27015 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS27015\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:       27015
             ASName:         FMCH-27015
             ASHandle:       AS27015
             RegDate:        2015-07-29
             Updated:        2015-07-29
             Ref:            https://rdap.arin.net/registry/autnum/27015
             
             
             OrgName:        FRESENIUS MEDICAL CARE HOLDINGS, INC
             OrgId:          FMCH-4
             Address:        32 Hartwell Ave
             City:           Lexington
             StateProv:      MA
             PostalCode:     02421
             Country:        US
             RegDate:        2015-07-13
             Updated:        2015-07-13
             Comment:        http://www.freseniusmedicalcare.us
             Ref:            https://rdap.arin.net/registry/entity/FMCH-4
             
             
             OrgTechHandle: NETWO2864-ARIN
             OrgTechName:   Network Operations
             OrgTechPhone:  +1-781-699-9000 
             OrgTechEmail:  ml-networkengineering@fmc-na.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO2864-ARIN
             
             OrgAbuseHandle: NETWO2864-ARIN
             OrgAbuseName:   Network Operations
             OrgAbusePhone:  +1-781-699-9000 
             OrgAbuseEmail:  ml-networkengineering@fmc-na.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO2864-ARIN
             
             OrgNOCHandle: NETWO2864-ARIN
             OrgNOCName:   Network Operations
             OrgNOCPhone:  +1-781-699-9000 
             OrgNOCEmail:  ml-networkengineering@fmc-na.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/NETWO2864-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.
             #