ASN AS35999 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS35999?

AS35999 is listed under The New York Public Library, Astor, Lenox, and Tilden Foundations.

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.

AS35999 The New York Public Library, Astor, Lenox, and Tilden Foundations

ASN Lookup Tool

The New York Public Library, Astor, Lenox, and Tilden Foundations nypl.org

US 3 Routes

AS Data

AS35999

AS35999 – The New York Public Library, Astor, Lenox, and Tilden Foundations

AS Number	35999
AS Name	NYPL
Organization	The New York Public Library, Astor, Lenox, and Tilden Foundations(nypl)
Country	US
Website	nypl.org
Number of IPv4 Routes	3
Number of IPv6 Routes	0
ASN type	GOVERNMENT
Registry	ARIN
Date Allocated	2005-07-21

ASN Intelligence API for production workflows

Use ASN data for AS35999 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
65.88.88.0/23	AS35999	The New York Public Library, Astor, Lenox, and Tilden Foundations	Level 3 Parent, LLC	512
65.88.89.0/24	AS35999	The New York Public Library, Astor, Lenox, and Tilden Foundations	Level 3 Parent, LLC	256
192.94.250.0/24	AS35999	The New York Public Library, Astor, Lenox, and Tilden Foundations	The New York Public Library LIONS	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:       35999
ASName:         NYPL
ASHandle:       AS35999
RegDate:        2005-07-21
Updated:        2023-09-06    
Ref:            https://rdap.arin.net/registry/autnum/35999


OrgName:        The New York Public Library, Astor, Lenox, and Tilden Foundations
OrgId:          NYPL
Address:        40 West 20 Street, 5th Floor
City:           New York
StateProv:      NY
PostalCode:     10011
Country:        US
RegDate:        1991-03-06
Updated:        2023-09-06
Ref:            https://rdap.arin.net/registry/entity/NYPL


OrgAbuseHandle: ABUSE8829-ARIN
OrgAbuseName:   Abuse
OrgAbusePhone:  +1-212-621-0258 
OrgAbuseEmail:  abuse@nypl.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE8829-ARIN

OrgDNSHandle: HOSTM2185-ARIN
OrgDNSName:   Host Master
OrgDNSPhone:  +1-212-621-0258 
OrgDNSEmail:  hostmaster@nypl.org
OrgDNSRef:    https://rdap.arin.net/registry/entity/HOSTM2185-ARIN

OrgNOCHandle: HOSTM2185-ARIN
OrgNOCName:   Host Master
OrgNOCPhone:  +1-212-621-0258 
OrgNOCEmail:  hostmaster@nypl.org
OrgNOCRef:    https://rdap.arin.net/registry/entity/HOSTM2185-ARIN

OrgRoutingHandle: HOSTM2185-ARIN
OrgRoutingName:   Host Master
OrgRoutingPhone:  +1-212-621-0258 
OrgRoutingEmail:  hostmaster@nypl.org
OrgRoutingRef:    https://rdap.arin.net/registry/entity/HOSTM2185-ARIN

OrgTechHandle: HOSTM2185-ARIN
OrgTechName:   Host Master
OrgTechPhone:  +1-212-621-0258 
OrgTechEmail:  hostmaster@nypl.org
OrgTechRef:    https://rdap.arin.net/registry/entity/HOSTM2185-ARIN

RAbuseHandle: ABUSE8829-ARIN
RAbuseName:   Abuse
RAbusePhone:  +1-212-621-0258 
RAbuseEmail:  abuse@nypl.org
RAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE8829-ARIN

RNOCHandle: HOSTM2185-ARIN
RNOCName:   Host Master
RNOCPhone:  +1-212-621-0258 
RNOCEmail:  hostmaster@nypl.org
RNOCRef:    https://rdap.arin.net/registry/entity/HOSTM2185-ARIN

RTechHandle: HOSTM2185-ARIN
RTechName:   Host Master
RTechPhone:  +1-212-621-0258 
RTechEmail:  hostmaster@nypl.org
RTechRef:    https://rdap.arin.net/registry/entity/HOSTM2185-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
AS46887	Crown Castle Fiber LLC	US
AS6461	Zayo Bandwidth	US

Upstreams

AS Number	Description	Country
AS46887	Crown Castle Fiber LLC	US
AS6461	Zayo Bandwidth	US

Contacts

Email Contacts

hostmaster@nypl.org

Abuse Contacts

abuse@nypl.org