What is ASN AS393689?

ASN AS393689 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS393689?

AS393689 is listed under National Library of Medicine.

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.

AS393689 National Library of Medicine

ASN Lookup Tool

National Library of Medicine nih.gov

US 5 Routes

AS Data

AS393689

AS393689 – National Library of Medicine

AS Number	393689
AS Name	NLM-NCCS
Organization	National Library of Medicine(nlm)
Country	US
Website	nih.gov
Number of IPv4 Routes	4
Number of IPv6 Routes	1
ASN type	GOVERNMENT
Registry	ARIN
Date Allocated	2014-11-06

ASN Intelligence API for production workflows

Use ASN data for AS393689 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
165.112.34.0/23	AS393689	National Library of Medicine	National Institutes of Health	512
165.112.140.0/24	AS393689	National Library of Medicine	National Institutes of Health	256
165.112.8.0/22	AS393689	National Library of Medicine	National Institutes of Health	1024
2607:f220:41f::/48	AS393689	National Library of Medicine	National Institutes of Health	~1×10²⁴
165.112.6.0/23	AS393689	National Library of Medicine	National Institutes of Health	512

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:       393689
ASName:         NLM-NCCS
ASHandle:       AS393689
RegDate:        2014-11-06
Updated:        2014-11-06    
Ref:            https://rdap.arin.net/registry/autnum/393689


OrgName:        National Library of Medicine
OrgId:          NLM
Address:        8600 Rockville Pike
City:           Bethessda
StateProv:      MD
PostalCode:     20817
Country:        US
RegDate:        1984-02-13
Updated:        2022-09-28
Ref:            https://rdap.arin.net/registry/entity/NLM


OrgTechHandle: GATES18-ARIN
OrgTechName:   Gates, Kevin 
OrgTechPhone:  +1-301-496-2572 
OrgTechEmail:  kevin.gates@nih.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/GATES18-ARIN

OrgAbuseHandle: NAC15-ARIN
OrgAbuseName:   Network Abuse Center
OrgAbusePhone:  +1-301-496-2943 
OrgAbuseEmail:  abuse@nlm.nih.gov
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NAC15-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
AS11537	Internet2	US
AS70	National Library of Medicine	US
AS10886	University of Maryland	US
AS11164	Internet2	US

Upstreams

AS Number	Description	Country
AS11537	Internet2	US
AS10886	University of Maryland	US
AS11164	Internet2	US

Downstreams

AS Number	Description	Country
AS70	National Library of Medicine	US

Contacts

Email Contacts

kevin.gates@nih.gov

Abuse Contacts

abuse@nlm.nih.gov