What is ASN AS397655?

ASN AS397655 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS397655?

AS397655 is listed under Netsmart Technologies Inc..

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.

AS397655 Netsmart Technologies Inc.

ASN Lookup Tool

Netsmart Technologies Inc. ntst.com

US 2 Routes

AS Data

AS397655

AS397655 – Netsmart Technologies Inc.

AS Number	397655
AS Name	NETSMART-IIT
Organization	Netsmart Technologies Inc.(nt-518)
Country	US
Website	ntst.com
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2019-06-19

ASN Intelligence API for production workflows

Use ASN data for AS397655 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

Get ASN API Key ASN API Docs

IP Ranges

Route	Origin	Origin Name	ISP	# IPs
38.100.178.0/24	AS397655	Netsmart Technologies Inc.	Netsmart Technologies	256
66.160.188.0/24	AS397655	Netsmart Technologies Inc.	Dalton Bush	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:       397655
ASName:         NETSMART-IIT
ASHandle:       AS397655
RegDate:        2019-06-19
Updated:        2019-12-10
Comment:        www.ntst.com
Comment:        Standard NOC hours 
Comment:        8:00 AM to 5:00 PM CDT    
Ref:            https://rdap.arin.net/registry/autnum/397655


OrgName:        Netsmart Technologies Inc.
OrgId:          NT-518
Address:        4950 College Blvd
City:           Overland Park
StateProv:      KS
PostalCode:     66211
Country:        US
RegDate:        2019-06-12
Updated:        2019-12-10
Comment:        http://www.ntst.com
Comment:        Standard NOC hours are 8:00 AM to 5:00 PM CDT.
Ref:            https://rdap.arin.net/registry/entity/NT-518


OrgTechHandle: NTNII-ARIN
OrgTechName:   Network Team, Netsmart Internal IT 
OrgTechPhone:  +1-800-842-1973 
OrgTechEmail:  admin@ntst.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NTNII-ARIN

OrgNOCHandle: NTNII-ARIN
OrgNOCName:   Network Team, Netsmart Internal IT 
OrgNOCPhone:  +1-800-842-1973 
OrgNOCEmail:  admin@ntst.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NTNII-ARIN

OrgAbuseHandle: NTNII-ARIN
OrgAbuseName:   Network Team, Netsmart Internal IT 
OrgAbusePhone:  +1-800-842-1973 
OrgAbuseEmail:  admin@ntst.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NTNII-ARIN

RAbuseHandle: NTNII-ARIN
RAbuseName:   Network Team, Netsmart Internal IT 
RAbusePhone:  +1-800-842-1973 
RAbuseEmail:  admin@ntst.com
RAbuseRef:    https://rdap.arin.net/registry/entity/NTNII-ARIN

RTechHandle: NTNII-ARIN
RTechName:   Network Team, Netsmart Internal IT 
RTechPhone:  +1-800-842-1973 
RTechEmail:  admin@ntst.com
RTechRef:    https://rdap.arin.net/registry/entity/NTNII-ARIN

RNOCHandle: NTNII-ARIN
RNOCName:   Network Team, Netsmart Internal IT 
RNOCPhone:  +1-800-842-1973 
RNOCEmail:  admin@ntst.com
RNOCRef:    https://rdap.arin.net/registry/entity/NTNII-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
AS1239	Cogent Communications, LLC	US
AS6939	Hurricane Electric LLC	US
AS209	CenturyLink Communications, LLC	US
AS174	Cogent Communications, LLC	US

Upstreams

AS Number	Description	Country
AS6939	Hurricane Electric LLC	US
AS209	CenturyLink Communications, LLC	US
AS174	Cogent Communications, LLC	US