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	Prefix	Description
	199.178.198.0/24	Trinity Health IHA Medical Group

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS12129	123.Net, Inc.	✔	✘
	AS7018	AT&T Enterprises, LLC	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS12129	123.Net, Inc.	✔	✘
	AS7018	AT&T Enterprises, LLC	✔	✘

ASHandle:       AS398085
OrgID:          IHSC-12
ASName:         IHA-01
ASNumber:       398085
RegDate:        2022-08-11
Updated:        2022-08-11
Source:         ARIN



OrgID:          IHSC-12
OrgName:        Trinity Health IHA Medical Group
CanAllocate:    
Street:         24 Frank Lloyd Wright Drive
Street:         Suite J2000
City:           Ann Arbor
State/Prov:     MI
Country:        US
PostalCode:     48105
RegDate:        2022-08-03
Updated:        2022-08-04
OrgAdminHandle: GEORG416-ARIN
OrgTechHandle:  GEORG416-ARIN
OrgAbuseHandle: GEORG416-ARIN
Source:         ARIN





OrgAdminHandle:       GEORG416-ARIN
OrgAdminName:         Nick George
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        GEORG416-ARIN
OrgTechName:          Nick George
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       GEORG416-ARIN
OrgAbuseName:         Nick George
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-06-14T03:27:07Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
LEVEL3	as-i123	976
LEVEL3	as7949:as-detix	96
RIPE	as-transroute-spec	19618