ASN AS21641 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS21641?

AS21641 is listed under VIRTUASYS America, 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.

AS21641 VIRTUASYS America, Inc.

ASN Lookup Tool

VIRTUASYS America, Inc. virtuasys.us

US 6 Routes

AS Data

AS21641

AS21641 – VIRTUASYS America, Inc.

AS Number	21641
AS Name	VIRTUASYS-AMERICA
Organization	VIRTUASYS America, Inc.(va-448)
Country	US
Website	virtuasys.us
Number of IPv4 Routes	4
Number of IPv6 Routes	2
ASN type	ISP
Registry	ARIN
Date Allocated	2024-01-16

ASN Intelligence API for production workflows

Use ASN data for AS21641 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
2a0e:8a84::/32	AS0			~79×10²⁷
194.147.71.0/24	AS21641	VIRTUASYS America, Inc.	VIRTUASYS America, Inc.	256
216.75.145.0/24	AS21641	VIRTUASYS America, Inc.	IPXO LLC	256
199.231.70.0/24	AS21641	VIRTUASYS America, Inc.	Internet Utilities NA LLC	256
206.206.103.0/24	AS21641	VIRTUASYS America, Inc.	IPXO LLC	256
2607:8bc0::/32	AS21641	VIRTUASYS America, Inc.	VIRTUASYS America, Inc.	~79×10²⁷

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:       21641
ASName:         VIRTUASYS-AMERICA
ASHandle:       AS21641
RegDate:        2024-01-16
Updated:        2025-06-18    
Ref:            https://rdap.arin.net/registry/autnum/21641


OrgName:        VIRTUASYS America, Inc.
OrgId:          VA-448
Address:        2810 North Church Street
City:           Wilmington
StateProv:      DE
PostalCode:     19802
Country:        US
RegDate:        2024-01-02
Updated:        2024-01-09
Ref:            https://rdap.arin.net/registry/entity/VA-448


OrgDNSHandle: NETAD313-ARIN
OrgDNSName:   NetAdmin
OrgDNSPhone:  +1-307-414-8112 
OrgDNSEmail:  netadmin@virtuasys.us
OrgDNSRef:    https://rdap.arin.net/registry/entity/NETAD313-ARIN

OrgTechHandle: NETAD313-ARIN
OrgTechName:   NetAdmin
OrgTechPhone:  +1-307-414-8112 
OrgTechEmail:  netadmin@virtuasys.us
OrgTechRef:    https://rdap.arin.net/registry/entity/NETAD313-ARIN

OrgNOCHandle: NETAD313-ARIN
OrgNOCName:   NetAdmin
OrgNOCPhone:  +1-307-414-8112 
OrgNOCEmail:  netadmin@virtuasys.us
OrgNOCRef:    https://rdap.arin.net/registry/entity/NETAD313-ARIN

OrgAbuseHandle: NETAD313-ARIN
OrgAbuseName:   NetAdmin
OrgAbusePhone:  +1-307-414-8112 
OrgAbuseEmail:  netadmin@virtuasys.us
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETAD313-ARIN

OrgRoutingHandle: NETAD313-ARIN
OrgRoutingName:   NetAdmin
OrgRoutingPhone:  +1-307-414-8112 
OrgRoutingEmail:  netadmin@virtuasys.us
OrgRoutingRef:    https://rdap.arin.net/registry/entity/NETAD313-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
AS200766	Kerry Lynn brown jr	US
AS58057	Securebit AG	CH
AS265731	Secretaria Legal y Tecnica	AR
AS6939	Hurricane Electric LLC	US
AS8298	IPng Networks GmbH	CH
AS400587	Ryamer, LLC	US
AS201354	Lilly Schramm	DE
AS60423	E Money Net Developers 24 Company Private Joint Stock	IR
AS52025	ParadoxNetworks Limited	GB
AS50414	ThousandEyes LLC	US

Upstreams

AS Number	Description	Country
AS35661	VIRTUA SYSTEMS SAS	FR
AS58057	Securebit AG	CH
AS52025	ParadoxNetworks Limited	GB
AS6939	Hurricane Electric LLC	US
AS8298	IPng Networks GmbH	CH
AS400587	Ryamer, LLC	US

Downstreams

AS Number	Description	Country
AS60423	E Money Net Developers 24 Company Private Joint Stock	IR
AS200766	Kerry Lynn brown jr	US
AS207977	GreenSpruce Internet Services LLC	US
AS199327	Gregoire Compagnon	FR
AS50414	ThousandEyes LLC	US
AS210727	Buy Limited	GB
AS265731	Secretaria Legal y Tecnica	AR
AS201354	Lilly Schramm	DE
AS210961	Nathan York	GB