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AS397956 Network Data 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

Network Data Systems, Inc network-data.com

US 2 Routes

AS Data

AS397956

AS397956 – Network Data Systems, Inc

AS Number	397956
AS Name	NETWORK-DATA-SYSTEMS
Organization	Network Data Systems, Inc(nds-83)
Country	US
Website	network-data.com
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2019-09-18

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
192.43.155.0/24	AS397956	Network Data Systems, Inc	Network Data Systems, Inc	256
192.43.154.0/24	AS397956	Network Data Systems, Inc	Network Data 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:       397956
ASName:         NETWORK-DATA-SYSTEMS
ASHandle:       AS397956
RegDate:        2019-09-18
Updated:        2019-09-18    
Ref:            https://rdap.arin.net/registry/autnum/397956


OrgName:        Network Data Systems, Inc
OrgId:          NDS-83
Address:        300 N Martingale Rd., Suite 300
City:           Schaumburg
StateProv:      IL
PostalCode:     60173
Country:        US
RegDate:        2018-03-01
Updated:        2026-01-08
Ref:            https://rdap.arin.net/registry/entity/NDS-83


OrgTechHandle: NETWO8470-ARIN
OrgTechName:   Network Operations
OrgTechPhone:  +1-847-385-6700 
OrgTechEmail:  acohn@network-data.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO8470-ARIN

OrgAbuseHandle: NETWO8470-ARIN
OrgAbuseName:   Network Operations
OrgAbusePhone:  +1-847-385-6700 
OrgAbuseEmail:  acohn@network-data.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO8470-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
AS33491	Comcast Cable Communications, LLC	US
AS7015	Comcast Cable Communications, LLC	US
AS32298	Centersquare	US
AS36327	VINAKOM COMMUNICATIONS	US

Upstreams

AS Number	Description	Country
AS33491	Comcast Cable Communications, LLC	US
AS7015	Comcast Cable Communications, LLC	US
AS32298	Centersquare	US
AS36327	VINAKOM COMMUNICATIONS	US

Frequently Asked Questions

What is ASN AS397956?

ASN AS397956 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS397956?

AS397956 is listed under Network Data 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.