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	Prefix	Description
	67.66.136.0/23	AT&T Enterprises, LLC
	67.66.136.0/21	AT&T Enterprises, LLC
	67.66.140.0/23	AT&T Enterprises, LLC
	67.66.142.0/24	AT&T Enterprises, LLC
	75.128.171.0/24	SSM Health Care
	165.104.0.0/23	SSM Health Care
	165.104.0.0/16	SSM Health Care
	165.104.250.0/24	SSM Health Care
	165.104.251.0/24	SSM Health Care
	2620:1f6::/36	SSM Health Care

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS7018	AT&T Enterprises, LLC	✔	✔
	AS22677	Charter Communications LLC	✔	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS22677	Charter Communications LLC	✔	✔
	AS7018	AT&T Enterprises, LLC	✔	✔

ASHandle:       AS26305
OrgID:          SHC-4
ASName:         ASN-SSM
ASNumber:       26305
RegDate:        2002-08-16
Updated:        2012-03-02
TechHandle:     MS2156-ARIN
Source:         ARIN



OrgID:          SHC-4
OrgName:        SSM Health Care
CanAllocate:    
Street:         SSM Data Center
Street:         7980 Clayton Rd, Suite 401
City:           St. Louis
State/Prov:     MO
Country:        US
PostalCode:     63117
RegDate:        1993-05-12
Updated:        2022-07-20
OrgAdminHandle: PEISS1-ARIN
OrgTechHandle:  DS1663-ARIN
OrgTechHandle:  PEISS1-ARIN
OrgAbuseHandle: DS1663-ARIN
OrgAbuseHandle: PEISS1-ARIN
Source:         ARIN





OrgAdminHandle:       PEISS1-ARIN
OrgAdminName:         Ryan Peissig
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        DS1663-ARIN
OrgTechName:          Don Steinberg
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        PEISS1-ARIN
OrgTechName:          Ryan Peissig
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       DS1663-ARIN
OrgAbuseName:         Don Steinberg
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       PEISS1-ARIN
OrgAbuseName:         Ryan Peissig
# Email removed, Log into bgp.tools to see whois emails


TechHandle:           MS2156-ARIN
TechName:             Mike Suter
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-02-17T03:27:24Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
LEVEL3	as-sprint-origins	7309
LEVEL3	as-level3-origins-na	0
ARIN	as-xo-b	58220
RADB	as-chtr-bb	647
RADB	as-13986	474
RADB	as-18474	473
RADB	as-ufinet-latam-brasil	4935
RADB	as53013:as-cone	9665
RADB	as-hurricane	24647
RADB	as-ctbc-tools	9730