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AS18728 Instructional Systems Inc.

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

Instructional Systems Inc. isinj.com

US 1 Routes

AS Data

AS18728

AS18728 – Instructional Systems Inc.

AS Number	18728
AS Name	ISINJ
Organization	Instructional Systems Inc.(instru-15)
Country	US
Website	isinj.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2000-10-03

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Use ASN data for AS18728 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
63.115.50.0/24	AS18728	Instructional Systems Inc.	Instructional Systems Inc	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:       18728
ASName:         ISINJ
ASHandle:       AS18728
RegDate:        2000-10-03
Updated:        2012-02-24    
Ref:            https://rdap.arin.net/registry/autnum/18728


OrgName:        Instructional Systems Inc.
OrgId:          INSTRU-15
Address:        401 Hackensack Ave LL
City:           Hackensack
StateProv:      NJ
PostalCode:     07601
Country:        US
RegDate:        2000-10-03
Updated:        2023-02-06
Ref:            https://rdap.arin.net/registry/entity/INSTRU-15


OrgTechHandle: MP697-ARIN
OrgTechName:   Porada, Mark 
OrgTechPhone:  +1-201-417-9562 
OrgTechEmail:  mark@isinj.com
OrgTechRef:    https://rdap.arin.net/registry/entity/MP697-ARIN

OrgAbuseHandle: MP697-ARIN
OrgAbuseName:   Porada, Mark 
OrgAbusePhone:  +1-201-417-9562 
OrgAbuseEmail:  mark@isinj.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/MP697-ARIN

RTechHandle: MP697-ARIN
RTechName:   Porada, Mark 
RTechPhone:  +1-201-417-9562 
RTechEmail:  mark@isinj.com
RTechRef:    https://rdap.arin.net/registry/entity/MP697-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
AS54004	Cablevision Lightpath LLC	US

Upstreams

AS Number	Description	Country
AS54004	Cablevision Lightpath LLC	US

Frequently Asked Questions

What is ASN AS18728?

ASN AS18728 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS18728?

AS18728 is listed under Instructional Systems Inc..

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.