ASN AS40578 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS40578?

AS40578 is listed under Vanguard Health Systems.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS40578 Vanguard Health Systems

ASN Lookup Tool

Vanguard Health Systems tenethealth.com

US 2 Routes

AS Data

AS40578

AS40578 – Vanguard Health Systems

AS Number	40578
AS Name	VANGUARDHEALTHSYSTEMS-PHAZ
Organization	Vanguard Health Systems(vhm-3)
Country	US
Website	tenethealth.com
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2008-02-05

ASN Intelligence API for production workflows

Use ASN data for AS40578 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
199.5.31.0/24	AS40578	Vanguard Health Systems	Vanguard Health Systems	256
199.5.30.0/24	AS40578	Vanguard Health Systems	Vanguard Health Systems	256

Raw Whois Response

#
# 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:       40578
ASName:         VANGUARDHEALTHSYSTEMS-PHAZ
ASHandle:       AS40578
RegDate:        2008-02-05
Updated:        2012-03-02    
Ref:            https://rdap.arin.net/registry/autnum/40578


OrgName:        Vanguard Health Systems
OrgId:          VHM-3
Address:        8620 North 22nd Avenue
Address:        Suite 200
City:           Phoenix
StateProv:      AZ
PostalCode:     85021
Country:        US
RegDate:        2007-10-23
Updated:        2023-02-28
Ref:            https://rdap.arin.net/registry/entity/VHM-3


OrgAbuseHandle: ABUSE1775-ARIN
OrgAbuseName:   Abuse
OrgAbusePhone:  +1-602-674-1400 
OrgAbuseEmail:  abuse@abrazohealth.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE1775-ARIN

OrgNOCHandle: NOC2834-ARIN
OrgNOCName:   Network Operations Center
OrgNOCPhone:  +1-602-674-1400 
OrgNOCEmail:  noc@abrazohealth.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NOC2834-ARIN

OrgTechHandle: LONGG6-ARIN
OrgTechName:   Long, Gabriel 
OrgTechPhone:  +1-469-893-2200 
OrgTechEmail:  gabriel.long@tenethealth.com
OrgTechRef:    https://rdap.arin.net/registry/entity/LONGG6-ARIN

OrgTechHandle: NOC2834-ARIN
OrgTechName:   Network Operations Center
OrgTechPhone:  +1-602-674-1400 
OrgTechEmail:  noc@abrazohealth.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NOC2834-ARIN

OrgTechHandle: GONGA10-ARIN
OrgTechName:   Gongaware, Curt 
OrgTechPhone:  +1-602-674-1400 
OrgTechEmail:  curt.gongaware@hcl.com
OrgTechRef:    https://rdap.arin.net/registry/entity/GONGA10-ARIN

RNOCHandle: HELPD55-ARIN
RNOCName:   Help Desk
RNOCPhone:  +1-602-347-6456 
RNOCEmail:  helpdesk@abrazohealth.com
RNOCRef:    https://rdap.arin.net/registry/entity/HELPD55-ARIN

RTechHandle: NOC2834-ARIN
RTechName:   Network Operations Center
RTechPhone:  +1-602-674-1400 
RTechEmail:  noc@abrazohealth.com
RTechRef:    https://rdap.arin.net/registry/entity/NOC2834-ARIN

RAbuseHandle: ABUSE1775-ARIN
RAbuseName:   Abuse
RAbusePhone:  +1-602-674-1400 
RAbuseEmail:  abuse@abrazohealth.com
RAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE1775-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.
#

Parsed Whois Response

Peers

AS Number	Description	Country
AS286	GTT Communications Inc.	NL
AS286	GTT Communications Inc.	US
AS3257	GTT Communications Inc.	US

Upstreams

AS Number	Description	Country
AS286	GTT Communications Inc.	US
AS3257	GTT Communications Inc.	US

Contacts

Email Contacts

curt.gongaware@hcl.com noc@abrazohealth.com gabriel.long@tenethealth.com

Abuse Contacts

abuse@abrazohealth.com