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AS6618 Johns Hopkins HealthCare

Q: Why is WHOIS data shown for an ASN?

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

ASN Lookup Tool

Johns Hopkins HealthCare jhhc.com

US 1 Routes

AS Data

AS6618

AS6618 – Johns Hopkins HealthCare

AS Number	6618
AS Name	JOHNS-122
Organization	Johns Hopkins HealthCare(johns-122)
Country	US
Website	jhhc.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2009-10-13

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Use ASN data for AS6618 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
12.181.141.0/24	AS6618	Johns Hopkins HealthCare	JHU APLN.R. SHRESTHA MS 8	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:       6618
ASName:         JOHNS-122
ASHandle:       AS6618
RegDate:        2009-10-13
Updated:        2012-02-24    
Ref:            https://rdap.arin.net/registry/autnum/6618


OrgName:        Johns Hopkins HealthCare
OrgId:          JOHNS-122
Address:        6704 Curtis Court
City:           Glen Burnie
StateProv:      MD
PostalCode:     21060
Country:        US
RegDate:        2009-09-09
Updated:        2011-09-24
Ref:            https://rdap.arin.net/registry/entity/JOHNS-122


OrgAbuseHandle: MWI227-ARIN
OrgAbuseName:   William, McKain 
OrgAbusePhone:  +1-410-424-4642 
OrgAbuseEmail:  infosec@jhhc.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/MWI227-ARIN

OrgTechHandle: MWI227-ARIN
OrgTechName:   William, McKain 
OrgTechPhone:  +1-410-424-4642 
OrgTechEmail:  infosec@jhhc.com
OrgTechRef:    https://rdap.arin.net/registry/entity/MWI227-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
AS3356	Level 3 Parent, LLC	US

Upstreams

AS Number	Description	Country
AS7018	AT&T Enterprises, LLC	US
AS3356	Level 3 Parent, LLC	US

Frequently Asked Questions

What is ASN AS6618?

ASN AS6618 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS6618?

AS6618 is listed under Johns Hopkins HealthCare.

What do peers, upstreams, and downstreams mean?

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 included here?

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

How can I access full ASN table data?

This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.