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AS398403 Alarm Detection 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

Alarm Detection Systems, Inc adsalarm.com

US 1 Routes

AS Data

AS398403

AS398403 – Alarm Detection Systems, Inc

AS Number	398403
AS Name	SSI
Organization	Alarm Detection Systems, Inc(alarm-4)
Country	US
Website	adsalarm.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2020-05-19

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
204.235.123.0/24	AS398403	Alarm Detection Systems, Inc	Alarm Detection 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:       398403
ASName:         SSI
ASHandle:       AS398403
RegDate:        2020-05-19
Updated:        2020-05-19    
Ref:            https://rdap.arin.net/registry/autnum/398403


OrgName:        Alarm Detection Systems, Inc
OrgId:          ALARM-4
Address:        1111 Church Rd
City:           Aurora
StateProv:      IL
PostalCode:     60505
Country:        US
RegDate:        2008-09-22
Updated:        2024-11-25
Ref:            https://rdap.arin.net/registry/entity/ALARM-4


OrgAbuseHandle: MSC204-ARIN
OrgAbuseName:   Schramm, Mark 
OrgAbusePhone:  +1-630-844-5387 
OrgAbuseEmail:  mschramm@adsalarm.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/MSC204-ARIN

OrgTechHandle: MSC204-ARIN
OrgTechName:   Schramm, Mark 
OrgTechPhone:  +1-630-844-5387 
OrgTechEmail:  mschramm@adsalarm.com
OrgTechRef:    https://rdap.arin.net/registry/entity/MSC204-ARIN

OrgNOCHandle: MSC204-ARIN
OrgNOCName:   Schramm, Mark 
OrgNOCPhone:  +1-630-844-5387 
OrgNOCEmail:  mschramm@adsalarm.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/MSC204-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
AS3356	Level 3 Parent, LLC	US
AS33652	Comcast Cable Communications, LLC	US

Upstreams

AS Number	Description	Country
AS3356	Level 3 Parent, LLC	US
AS33652	Comcast Cable Communications, LLC	US

Frequently Asked Questions

What is ASN AS398403?

ASN AS398403 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS398403?

AS398403 is listed under Alarm Detection 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.