ASN AS54576 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS54576?

AS54576 is listed under Hoag Memorial Hospital Presbyterian.

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?

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AS54576 Hoag Memorial Hospital Presbyterian

ASN Lookup Tool

Hoag Memorial Hospital Presbyterian hoag.org

US 11 Routes

AS Data

AS54576

AS54576 – Hoag Memorial Hospital Presbyterian

AS Number	54576
AS Name	RESTORE ASN 54576 FOR HOAG MEMORIAL HOSPITAL
Organization	Hoag Memorial Hospital Presbyterian (hmh-4)
Country	US
Website	hoag.org
Number of IPv4 Routes	11
Number of IPv6 Routes	0
ASN type	EDUCATION
Registry	ARIN
Date Allocated	2025-09-17

ASN Intelligence API for production workflows

Use ASN data for AS54576 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
198.190.34.0/23	AS54576	Hoag Memorial Hospital Presbyterian	Hoag Memorial Hospital Presbyterian	512
198.190.52.0/22	AS54576	Hoag Memorial Hospital Presbyterian	Hoag Memorial Hospital Presbyterian	1024
198.190.38.0/23	AS54576	Hoag Memorial Hospital Presbyterian	Hoag Memorial Hospital Presbyterian	512
198.190.46.0/24	AS54576	Hoag Memorial Hospital Presbyterian	Hoag Memorial Hospital Presbyterian	256
198.190.34.0/24	AS54576	Hoag Memorial Hospital Presbyterian	Hoag Memorial Hospital Presbyterian	256
198.190.59.0/24	AS54576	Hoag Memorial Hospital Presbyterian	Hoag Memorial Hospital Presbyterian	256
198.190.54.0/24	AS54576	Hoag Memorial Hospital Presbyterian	Hoag Memorial Hospital Presbyterian	256
198.190.55.0/24	AS54576	Hoag Memorial Hospital Presbyterian	Hoag Memorial Hospital Presbyterian	256
198.190.38.0/24	AS54576	Hoag Memorial Hospital Presbyterian	Hoag Memorial Hospital Presbyterian	256
198.190.36.0/24	AS54576	Hoag Memorial Hospital Presbyterian	Hoag Memorial Hospital Presbyterian	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:       54576
ASName:         RESTORE ASN 54576 FOR HOAG MEMORIAL HOSPITAL
ASHandle:       AS54576
RegDate:        2025-09-17
Updated:        2025-09-17
Ref:            https://rdap.arin.net/registry/autnum/54576


OrgName:        Hoag Memorial Hospital Presbyterian
OrgId:          HMH-4
Address:        Information Systems
Address:        One Hoag Drive Bldg 44
City:           Newport Beach
StateProv:      CA
PostalCode:     92663
Country:        US
RegDate:        1993-07-23
Updated:        2025-05-30
Ref:            https://rdap.arin.net/registry/entity/HMH-4


OrgTechHandle: TECHN1843-ARIN
OrgTechName:   Technical Contract
OrgTechPhone:  +1-714-624-3606 
OrgTechEmail:  nadeem.siddiqui@hoag.org
OrgTechRef:    https://rdap.arin.net/registry/entity/TECHN1843-ARIN

OrgAbuseHandle: TECHN1843-ARIN
OrgAbuseName:   Technical Contract
OrgAbusePhone:  +1-714-624-3606 
OrgAbuseEmail:  nadeem.siddiqui@hoag.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/TECHN1843-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

{
  "status" : true,
  "whois_server" : "whois.arin.net",
  "aut_nums" : [ {
    "aut_num" : "54576",
    "as_handle" : "AS54576",
    "as_name" : "RESTORE ASN 54576 FOR HOAG MEMORIAL HOSPITAL",
    "tech_contacts" : [ "TECHN1843-ARIN" ],
    "abuse_contacts" : [ "TECHN1843-ARIN" ],
    "date_created" : "2025-09-17",
    "date_updated" : "2025-09-17",
    "source" : "https://rdap.arin.net/registry/autnum/54576"
  } ],
  "organization" : {
    "handle" : "HMH-4",
    "name" : "Hoag Memorial Hospital Presbyterian",
    "address" : [ "Information Systems", "One Hoag Drive Bldg 44", "Newport Beach", "CA", "92663", "US" ],
    "street" : "Hoag Drive Bldg 44",
    "city" : "Newport Beach",
    "state" : "CA",
    "zip_code" : "92663",
    "country" : [ "US" ],
    "date_created" : "1993-07-23",
    "date_updated" : "2025-05-30",
    "source" : "https://rdap.arin.net/registry/entity/HMH-4",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "TECHN1843-ARIN",
    "name" : "Technical Contract",
    "email" : [ "nadeem.siddiqui@hoag.org" ],
    "phone" : [ "+1-714-624-3606" ],
    "source" : "https://rdap.arin.net/registry/entity/TECHN1843-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "TECHN1843-ARIN",
    "name" : "Technical Contract",
    "email" : [ "nadeem.siddiqui@hoag.org" ],
    "phone" : [ "+1-714-624-3606" ],
    "source" : "https://rdap.arin.net/registry/entity/TECHN1843-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS46887	Crown Castle Fiber LLC	US
AS7018	AT&T Enterprises, LLC	US
AS20001	Charter Communications Inc	US

Upstreams

AS Number	Description	Country
AS46887	Crown Castle Fiber LLC	US
AS7018	AT&T Enterprises, LLC	US
AS20001	Charter Communications Inc	US