What is ASN AS400638?

ASN AS400638 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS400638?

AS400638 is listed under Bsoft Technology & Computer Services LLC.

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.

AS400638 Bsoft Technology & Computer Services LLC

ASN Lookup Tool

Bsoft Technology & Computer Services LLC bsofttech.com

US 1 Routes

AS Data

AS400638

AS400638 – Bsoft Technology & Computer Services LLC

AS Number	400638
AS Name	BSOFTTECH-NET
Organization	Bsoft Technology & Computer Services LLC(btcsl)
Country	US
Website	bsofttech.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2022-04-13

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Use ASN data for AS400638 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
158.51.209.0/24	AS400638	Bsoft Technology & Computer Services LLC	Bsoft Technology & Computer Services LLC	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:       400638
ASName:         BSOFTTECH-NET
ASHandle:       AS400638
RegDate:        2022-04-13
Updated:        2022-04-13
Comment:        https://bsofttech.com    
Ref:            https://rdap.arin.net/registry/autnum/400638


OrgName:        Bsoft Technology & Computer Services LLC
OrgId:          BTCSL
Address:        201 N Union Street
City:           Mauston
StateProv:      WI
PostalCode:     53948
Country:        US
RegDate:        2020-01-07
Updated:        2024-11-25
Ref:            https://rdap.arin.net/registry/entity/BTCSL


OrgRoutingHandle: CET16-ARIN
OrgRoutingName:   Tomaszewski, Chad Eugene
OrgRoutingPhone:  +1-608-847-4088 
OrgRoutingEmail:  chad@bsofttech.net
OrgRoutingRef:    https://rdap.arin.net/registry/entity/CET16-ARIN

OrgTechHandle: REBJ-ARIN
OrgTechName:   Brunner Jr., Ronald Ervin
OrgTechPhone:  +1-608-847-4088 
OrgTechEmail:  ron@bsofttech.com
OrgTechRef:    https://rdap.arin.net/registry/entity/REBJ-ARIN

OrgDNSHandle: CET16-ARIN
OrgDNSName:   Tomaszewski, Chad Eugene
OrgDNSPhone:  +1-608-847-4088 
OrgDNSEmail:  chad@bsofttech.net
OrgDNSRef:    https://rdap.arin.net/registry/entity/CET16-ARIN

OrgTechHandle: CET16-ARIN
OrgTechName:   Tomaszewski, Chad Eugene
OrgTechPhone:  +1-608-847-4088 
OrgTechEmail:  chad@bsofttech.net
OrgTechRef:    https://rdap.arin.net/registry/entity/CET16-ARIN

OrgAbuseHandle: CET16-ARIN
OrgAbuseName:   Tomaszewski, Chad Eugene
OrgAbusePhone:  +1-608-847-4088 
OrgAbuseEmail:  chad@bsofttech.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/CET16-ARIN

OrgNOCHandle: CET16-ARIN
OrgNOCName:   Tomaszewski, Chad Eugene
OrgNOCPhone:  +1-608-847-4088 
OrgNOCEmail:  chad@bsofttech.net
OrgNOCRef:    https://rdap.arin.net/registry/entity/CET16-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
AS399723	Lynxx Networks	US

Upstreams

AS Number	Description	Country
AS399723	Lynxx Networks	US