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AS53598 National Jewish Medical and Research Center Corporation

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

National Jewish Medical and Research Center Corporation njhealth.org

US 4 Routes

AS Data

AS53598

AS53598 – National Jewish Medical and Research Center Corporation

AS Number	53598
AS Name	NJRCASN53598
Organization	National Jewish Medical and Research Center Corporation(njrc)
Country	US
Website	njhealth.org
Number of IPv4 Routes	4
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2018-02-16

ASN Intelligence API for production workflows

Use ASN data for AS53598 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
205.143.254.0/24	AS53598	National Jewish Medical and Research Center Corporation	National Jewish Medical and Research Center Corporation	256
205.143.255.0/24	AS53598	National Jewish Medical and Research Center Corporation	National Jewish Medical and Research Center Corporation	256
205.143.248.0/24	AS53598	National Jewish Medical and Research Center Corporation	National Jewish Medical and Research Center Corporation	256
205.143.249.0/24	AS53598	National Jewish Medical and Research Center Corporation	National Jewish Medical and Research Center Corporation	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:       53598
ASName:         NJRCASN53598
ASHandle:       AS53598
RegDate:        2018-02-16
Updated:        2018-02-16    
Ref:            https://rdap.arin.net/registry/autnum/53598


OrgName:        National Jewish Medical and Research Center Corporation
OrgId:          NJRC
Address:        1400 Jackson Street
City:           Denver
StateProv:      CO
PostalCode:     80206
Country:        US
RegDate:        1995-06-15
Updated:        2019-12-20
Ref:            https://rdap.arin.net/registry/entity/NJRC


OrgAbuseHandle: BG72-ORG-ARIN
OrgAbuseName:   NJH Admin
OrgAbusePhone:  +1-303-398-1848 
OrgAbuseEmail:  weaklyr@njhealth.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/BG72-ORG-ARIN

OrgTechHandle: BG72-ORG-ARIN
OrgTechName:   NJH Admin
OrgTechPhone:  +1-303-398-1848 
OrgTechEmail:  weaklyr@njhealth.org
OrgTechRef:    https://rdap.arin.net/registry/entity/BG72-ORG-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
AS3549	Level 3 Communications, Inc. (GBLX)	US
AS3356	Level 3 Parent, LLC	US
AS6461	Zayo Bandwidth	US

Upstreams

AS Number	Description	Country
AS3356	Level 3 Parent, LLC	US
AS6461	Zayo Bandwidth	US

Frequently Asked Questions

What is ASN AS53598?

ASN AS53598 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS53598?

AS53598 is listed under National Jewish Medical and Research Center Corporation.

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.