ASN AS25611 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS25611?

AS25611 is listed under North Shore Long Island Jewish Health System.

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.

AS25611 North Shore Long Island Jewish Health System

ASN Lookup Tool

North Shore Long Island Jewish Health System northwell.edu

US 5 Routes

AS Data

AS25611

AS25611 – North Shore Long Island Jewish Health System

AS Number	25611
AS Name	NSLIJHS
Organization	North Shore Long Island Jewish Health System(nslijhs)
Country	US
Website	northwell.edu
Number of IPv4 Routes	5
Number of IPv6 Routes	0
ASN type	EDUCATION
Registry	ARIN
Date Allocated	2002-04-08

ASN Intelligence API for production workflows

Use ASN data for AS25611 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
8.44.200.0/24	AS25611	North Shore Long Island Jewish Health System	North Shore Long Island Jewish Health System	256
8.25.157.0/24	AS25611	North Shore Long Island Jewish Health System	North Shore Long Island Jewish Health System	256
69.27.229.0/24	AS25611	North Shore Long Island Jewish Health System	North Shore LIJ	256
69.74.179.0/24	AS25611	North Shore Long Island Jewish Health System	NSLIJ	256
69.74.180.0/24	AS25611	North Shore Long Island Jewish Health System	NSLIJ	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:       25611
ASName:         NSLIJHS
ASHandle:       AS25611
RegDate:        2002-04-08
Updated:        2012-03-02    
Ref:            https://rdap.arin.net/registry/autnum/25611


OrgName:        North Shore Long Island Jewish Health System
OrgId:          NSLIJHS
Address:        972 Brush Hollow Rd.
City:           Westbury
StateProv:      NY
PostalCode:     11590
Country:        US
RegDate:        2002-04-08
Updated:        2021-10-11
Ref:            https://rdap.arin.net/registry/entity/NSLIJHS


OrgAbuseHandle: NOCKO-ARIN
OrgAbuseName:   Nockowitz, Rob 
OrgAbusePhone:  +1-516-680-8350 
OrgAbuseEmail:  rnockowitz@northwell.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NOCKO-ARIN

OrgTechHandle: GRAZI22-ARIN
OrgTechName:   Graziosi, Daniel  
OrgTechPhone:  +1-631-977-0616 
OrgTechEmail:  dgraziosi@northwell.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/GRAZI22-ARIN

RAbuseHandle: NOCKO-ARIN
RAbuseName:   Nockowitz, Rob 
RAbusePhone:  +1-516-680-8350 
RAbuseEmail:  rnockowitz@northwell.edu
RAbuseRef:    https://rdap.arin.net/registry/entity/NOCKO-ARIN

RNOCHandle: NOCKO-ARIN
RNOCName:   Nockowitz, Rob 
RNOCPhone:  +1-516-680-8350 
RNOCEmail:  rnockowitz@northwell.edu
RNOCRef:    https://rdap.arin.net/registry/entity/NOCKO-ARIN

RTechHandle: NOCKO-ARIN
RTechName:   Nockowitz, Rob 
RTechPhone:  +1-516-680-8350 
RTechEmail:  rnockowitz@northwell.edu
RTechRef:    https://rdap.arin.net/registry/entity/NOCKO-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
AS3356	Level 3 Parent, LLC	US
AS54004	Cablevision Lightpath LLC	US

Upstreams

AS Number	Description	Country
AS46887	Crown Castle Fiber LLC	US
AS3356	Level 3 Parent, LLC	US
AS54004	Cablevision Lightpath LLC	US