What is ASN AS400421?

ASN AS400421 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS400421?

AS400421 is listed under Softheon, 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.

AS400421 Softheon, Inc. | IPGeolocation.io

ASN Lookup Tool

Softheon, Inc. colohouse.com

US 1 Routes

AS Data

AS400421

AS400421 – Softheon, Inc.

AS Number	400421
AS Name	AS-SOFTHEON
Organization	Softheon, Inc.(softh)
Country	US
Website	colohouse.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2022-01-31

ASN Intelligence API for production workflows

Use ASN data for AS400421 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

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
138.84.204.0/23	AS400421	Softheon, Inc.	Softheon, Inc.	512

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:       400421
ASName:         AS-SOFTHEON
ASHandle:       AS400421
RegDate:        2022-01-31
Updated:        2022-01-31    
Ref:            https://rdap.arin.net/registry/autnum/400421


OrgName:        Softheon, Inc.
OrgId:          SOFTH
Address:        1500 Stony Brook Rd
City:           Stony Brook
StateProv:      NY
PostalCode:     11794
Country:        US
RegDate:        2022-01-11
Updated:        2025-05-02
Ref:            https://rdap.arin.net/registry/entity/SOFTH


OrgTechHandle: COLOH-ARIN
OrgTechName:   ColoHouse NetOps
OrgTechPhone:  +1-866-790-2656 
OrgTechEmail:  netops@colohouse.com
OrgTechRef:    https://rdap.arin.net/registry/entity/COLOH-ARIN

OrgAbuseHandle: COLOH-ARIN
OrgAbuseName:   ColoHouse NetOps
OrgAbusePhone:  +1-866-790-2656 
OrgAbuseEmail:  netops@colohouse.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/COLOH-ARIN

OrgAbuseHandle: HNAA-ARIN
OrgAbuseName:   HIvelocity Network Abuse Administrator
OrgAbusePhone:  +1-888-869-4678 
OrgAbuseEmail:  abuse@hivelocity.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/HNAA-ARIN

OrgTechHandle: NOC224-ARIN
OrgTechName:   Network Operations Center
OrgTechPhone:  +1-888-869-4678 
OrgTechEmail:  noc@hivelocity.net
OrgTechRef:    https://rdap.arin.net/registry/entity/NOC224-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
AS47869	ColoHouse LLC	US
AS6461	Zayo Bandwidth	US
AS54004	Cablevision Lightpath LLC	US

Upstreams

AS Number	Description	Country
AS47869	ColoHouse LLC	US
AS6461	Zayo Bandwidth	US
AS54004	Cablevision Lightpath LLC	US

Contacts

Email Contacts

netops@colohouse.com noc@hivelocity.net

Abuse Contacts

abuse@hivelocity.net