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	Prefix	Description
	199.5.30.0/24	Vanguard Health Systems
	199.5.31.0/24	Vanguard Health Systems

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS3257	GTT Communications Inc.	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS3257	GTT Communications Inc.	✔	✘
	AS8928	GTT Communications Inc.	✔	✘

ASHandle:       AS40578
OrgID:          VHM-3
ASName:         VANGUARDHEALTHSYSTEMS-PHAZ
ASNumber:       40578
RegDate:        2008-02-05
Updated:        2012-03-02
TechHandle:     NOC2834-ARIN
AbuseHandle:    ABUSE1775-ARIN
NOCHandle:      HELPD55-ARIN
Source:         ARIN



OrgID:          VHM-3
OrgName:        Vanguard Health Systems
CanAllocate:    
Street:         8620 North 22nd Avenue
Street:         Suite 200
City:           Phoenix
State/Prov:     AZ
Country:        US
PostalCode:     85021
RegDate:        2007-10-23
Updated:        2023-02-28
OrgAdminHandle: GONGA10-ARIN
OrgTechHandle:  GONGA10-ARIN
OrgTechHandle:  LONGG6-ARIN
OrgTechHandle:  NOC2834-ARIN
OrgAbuseHandle: ABUSE1775-ARIN
OrgNOCHandle:   NOC2834-ARIN
Source:         ARIN





OrgAdminHandle:       GONGA10-ARIN
OrgAdminName:         Curt Gongaware
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        GONGA10-ARIN
OrgTechName:          Curt Gongaware
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        LONGG6-ARIN
OrgTechName:          Gabriel Long
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        NOC2834-ARIN
OrgTechName:           Network Operations Center
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       ABUSE1775-ARIN
OrgAbuseName:          Abuse
# Email removed, Log into bgp.tools to see whois emails


OrgNOCHandle:         NOC2834-ARIN
OrgNOCName:            Network Operations Center
# Email removed, Log into bgp.tools to see whois emails


TechHandle:           NOC2834-ARIN
TechName:              Network Operations Center
# Email removed, Log into bgp.tools to see whois emails


AbuseHandle:          ABUSE1775-ARIN
AbuseName:             Abuse
# Email removed, Log into bgp.tools to see whois emails


NOCHandle:            HELPD55-ARIN
NOCName:               Help Desk
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-05-07T03:38:16Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RIPE	as-gttcust	91234
LEVEL3	as-as209-cust	1818
ALTDB	as-jarmtelco	651