ASN AS30258 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS30258?

AS30258 is listed under Huntington Memorial Hospital.

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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AS30258 Huntington Memorial Hospital

ASN Lookup Tool

Huntington Memorial Hospital cshs.org

US 2 Routes

AS Data

AS30258

AS30258 – Huntington Memorial Hospital

AS Number	30258
AS Name	HUNTINGTONMEMORIALHOSPITAL
Organization	Huntington Memorial Hospital(hmh-19)
Country	US
Website	cshs.org
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2003-08-22

ASN Intelligence API for production workflows

Use ASN data for AS30258 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
12.230.45.0/24	AS30258	Huntington Memorial Hospital	HUNTINGTON MEMORIAL HOSPITAL	256
66.194.2.0/24	AS30258	Huntington Memorial Hospital	Level 3 Parent, LLC	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:       30258
ASName:         HUNTINGTONMEMORIALHOSPITAL
ASHandle:       AS30258
RegDate:        2003-08-22
Updated:        2025-01-30    
Ref:            https://rdap.arin.net/registry/autnum/30258


OrgName:        Huntington Memorial Hospital
OrgId:          HMH-19
Address:        Huntington Memorial Hospital
Address:        100 W. California Blvd.
City:           Pasadena
StateProv:      CA
PostalCode:     91105
Country:        US
RegDate:        2003-07-31
Updated:        2025-12-02
Ref:            https://rdap.arin.net/registry/entity/HMH-19


OrgAbuseHandle: BRIGM1-ARIN
OrgAbuseName:   Brigmann, Darren 
OrgAbusePhone:  +1-323-866-6559 
OrgAbuseEmail:  darren.brigmann@cshs.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/BRIGM1-ARIN

OrgTechHandle: JTA9-ARIN
OrgTechName:   Tabor, Joe 
OrgTechPhone:  +1-661-857-4911 
OrgTechEmail:  joe.tabor@cshs.org
OrgTechRef:    https://rdap.arin.net/registry/entity/JTA9-ARIN

OrgAbuseHandle: CHANG11-ARIN
OrgAbuseName:   Chang, Tom 
OrgAbusePhone:  +1-323-866-6495 
OrgAbuseEmail:  tom.chang@cshs.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/CHANG11-ARIN

OrgTechHandle: BRIGM1-ARIN
OrgTechName:   Brigmann, Darren 
OrgTechPhone:  +1-323-866-6559 
OrgTechEmail:  darren.brigmann@cshs.org
OrgTechRef:    https://rdap.arin.net/registry/entity/BRIGM1-ARIN

OrgTechHandle: CHANG11-ARIN
OrgTechName:   Chang, Tom 
OrgTechPhone:  +1-323-866-6495 
OrgTechEmail:  tom.chang@cshs.org
OrgTechRef:    https://rdap.arin.net/registry/entity/CHANG11-ARIN

RAbuseHandle: BRIGM1-ARIN
RAbuseName:   Brigmann, Darren 
RAbusePhone:  +1-323-866-6559 
RAbuseEmail:  darren.brigmann@cshs.org
RAbuseRef:    https://rdap.arin.net/registry/entity/BRIGM1-ARIN

RTechHandle: BRIGM1-ARIN
RTechName:   Brigmann, Darren 
RTechPhone:  +1-323-866-6559 
RTechEmail:  darren.brigmann@cshs.org
RTechRef:    https://rdap.arin.net/registry/entity/BRIGM1-ARIN

RNOCHandle: BRIGM1-ARIN
RNOCName:   Brigmann, Darren 
RNOCPhone:  +1-323-866-6559 
RNOCEmail:  darren.brigmann@cshs.org
RNOCRef:    https://rdap.arin.net/registry/entity/BRIGM1-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
AS7018	AT&T Enterprises, LLC	US
AS3549	Level 3 Communications, Inc. (GBLX)	US
AS3549	Level 3 Parent, LLC	US

Upstreams

AS Number	Description	Country
AS7018	AT&T Enterprises, LLC	US
AS3549	Level 3 Parent, LLC	US