View

If you are scraping this block for the prefixes that a AS originates, please use the data dumps in https://bgp.tools/kb/api and cache them

	Prefix	Description
	12.172.67.0/24	Fresenius Medical Care
	199.38.52.0/24	FRESENIUS MEDICAL CARE HOLDINGS, INC
	199.38.53.0/24	FRESENIUS MEDICAL CARE HOLDINGS, INC
	199.38.54.0/24	FRESENIUS MEDICAL CARE HOLDINGS, INC
	199.38.55.0/24	FRESENIUS MEDICAL CARE HOLDINGS, INC

---

Network Policy

Click here to learn more about what this graph means and what makes up a network policy Global Aggregation (disabled due to size) Policy lucid_northcutt Policy loving_nightingale Policy mystifying_hypatia Policy hardcore_boyd

Chart Display Options

Display links using non straight lines

Prefixes in selected policy

Load all prefixes in policy

---

How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS7018	AT&T Enterprises, LLC	✔	✘
	AS7015	Comcast Cable Communications, LLC	✔	✘
	AS6461	Zayo Bandwidth	✔	✘
	AS46887	Crown Castle Fiber LLC	✔	✘

---

Peers

	ASN	Description	IPv4	IPv6
	AS7018	AT&T Enterprises, LLC	✔	✘
	AS6461	Zayo Bandwidth	✔	✘
	AS7015	Comcast Cable Communications, LLC	✔	✘
	AS46887	Crown Castle Fiber LLC	✔	✘

ASHandle:       AS27015
OrgID:          FMCH-4
ASName:         FMCH-27015
ASNumber:       27015
RegDate:        2015-07-29
Updated:        2015-07-29
Source:         ARIN



OrgID:          FMCH-4
OrgName:        FRESENIUS MEDICAL CARE HOLDINGS, INC
CanAllocate:    
Street:         32 Hartwell Ave
City:           Lexington
State/Prov:     MA
Country:        US
PostalCode:     02421
Comment:        http://www.freseniusmedicalcare.us
RegDate:        2015-07-13
Updated:        2015-07-13
OrgAdminHandle: NETWO2864-ARIN
OrgTechHandle:  NETWO2864-ARIN
OrgAbuseHandle: NETWO2864-ARIN
OrgNOCHandle:   NETWO2864-ARIN
Source:         ARIN





OrgAdminHandle:       NETWO2864-ARIN
OrgAdminName:          Network Operations
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        NETWO2864-ARIN
OrgTechName:           Network Operations
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       NETWO2864-ARIN
OrgAbuseName:          Network Operations
# Email removed, Log into bgp.tools to see whois emails


OrgNOCHandle:         NETWO2864-ARIN
OrgNOCName:            Network Operations
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2025-04-16T03:32:17Z UTC

---

Member of the following AS-SETs

-	Member	ASN Count
RADB	as-comcast-edia	2783
RADB	as-ccf	2059
ARIN	as-light-141	113
ARIN	as-xo-b	54997
ARIN	as-xo	1
LEVEL3	as-as209-cust	1818