ASN Lookup Tool

Reaching Across Illinois Library System railslibraries.org US US 1 Routes

AS Data

AS401975

AS401975 – Reaching Across Illinois Library System

AS Number 401975
AS Name RAILS
Organization Reaching Across Illinois Library System(rails-6)
Country US
Website railslibraries.org
Number of IPv4 Routes 1
Number of IPv6 Routes 0
ASN type ISP
Registry ARIN
Date Allocated 2025-09-14

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Use ASN data for AS401975 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
216.240.208.0/20 4096

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:       401975
ASName:         RAILS
ASHandle:       AS401975
RegDate:        2025-09-14
Updated:        2025-09-14    
Ref:            https://rdap.arin.net/registry/autnum/401975


OrgName:        Reaching Across Illinois Library System
OrgId:          RAILS-6
Address:        125 Tower Drive
City:           Burr Ridge
StateProv:      IL
PostalCode:     60527
Country:        US
RegDate:        2025-08-18
Updated:        2025-08-28
Ref:            https://rdap.arin.net/registry/entity/RAILS-6


OrgDNSHandle: NETAD99-ARIN
OrgDNSName:   Netadmin
OrgDNSPhone:  +1-630-734-5136 
OrgDNSEmail:  registrar@railslibraries.org
OrgDNSRef:    https://rdap.arin.net/registry/entity/NETAD99-ARIN

OrgAbuseHandle: NETAD99-ARIN
OrgAbuseName:   Netadmin
OrgAbusePhone:  +1-630-734-5136 
OrgAbuseEmail:  registrar@railslibraries.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETAD99-ARIN

OrgNOCHandle: NETAD99-ARIN
OrgNOCName:   Netadmin
OrgNOCPhone:  +1-630-734-5136 
OrgNOCEmail:  registrar@railslibraries.org
OrgNOCRef:    https://rdap.arin.net/registry/entity/NETAD99-ARIN

OrgRoutingHandle: NETAD99-ARIN
OrgRoutingName:   Netadmin
OrgRoutingPhone:  +1-630-734-5136 
OrgRoutingEmail:  registrar@railslibraries.org
OrgRoutingRef:    https://rdap.arin.net/registry/entity/NETAD99-ARIN

OrgTechHandle: NETAD99-ARIN
OrgTechName:   Netadmin
OrgTechPhone:  +1-630-734-5136 
OrgTechEmail:  registrar@railslibraries.org
OrgTechRef:    https://rdap.arin.net/registry/entity/NETAD99-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

Upstreams

AS Number Description Country
AS7018 AT&T Enterprises, LLC US

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Frequently Asked Questions

ASN AS401975 is an Autonomous System Number used to identify a network for BGP internet routing.
AS401975 is listed under Reaching Across Illinois Library System.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
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.