What is ASN AS401473?

ASN AS401473 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS401473?

AS401473 is listed under Marcus Systems, 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.

AS401473 Marcus Systems, LLC | IPGeolocation.io

ASN Lookup Tool

Marcus Systems, LLC mksys.org

US 2 Routes

AS Data

AS401473

AS401473 – Marcus Systems, LLC

AS Number	401473
AS Name	MKSYS
Organization	Marcus Systems, LLC(msl-336)
Country	US
Website	mksys.org
Number of IPv4 Routes	1
Number of IPv6 Routes	1
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2024-11-06

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Use ASN data for AS401473 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
2602:f7ae::/40	AS401473	Marcus Systems, LLC	Marcus Systems, LLC	~309×10²⁴
23.128.220.0/24	AS401473	Marcus Systems, LLC	Marcus Systems, 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:       401473
ASName:         MKSYS
ASHandle:       AS401473
RegDate:        2024-11-06
Updated:        2024-11-06
Comment:        https://mksys.org    
Ref:            https://rdap.arin.net/registry/autnum/401473


OrgName:        Marcus Systems, LLC
OrgId:          MSL-336
Address:        301 W Grand Ave #153
City:           Chicago
StateProv:      IL
PostalCode:     60654
Country:        US
RegDate:        2024-10-20
Updated:        2024-10-29
Ref:            https://rdap.arin.net/registry/entity/MSL-336


OrgNOCHandle: MNO95-ARIN
OrgNOCName:   MKSYS Network Operations
OrgNOCPhone:  +1-470-509-3666 
OrgNOCEmail:  noc@mksys.org
OrgNOCRef:    https://rdap.arin.net/registry/entity/MNO95-ARIN

OrgDNSHandle: MNO95-ARIN
OrgDNSName:   MKSYS Network Operations
OrgDNSPhone:  +1-470-509-3666 
OrgDNSEmail:  noc@mksys.org
OrgDNSRef:    https://rdap.arin.net/registry/entity/MNO95-ARIN

OrgRoutingHandle: MNO95-ARIN
OrgRoutingName:   MKSYS Network Operations
OrgRoutingPhone:  +1-470-509-3666 
OrgRoutingEmail:  noc@mksys.org
OrgRoutingRef:    https://rdap.arin.net/registry/entity/MNO95-ARIN

OrgTechHandle: MNO95-ARIN
OrgTechName:   MKSYS Network Operations
OrgTechPhone:  +1-470-509-3666 
OrgTechEmail:  noc@mksys.org
OrgTechRef:    https://rdap.arin.net/registry/entity/MNO95-ARIN

OrgAbuseHandle: MCL89-ARIN
OrgAbuseName:   MKSYS Compliance and Legal
OrgAbusePhone:  +1-470-509-3666 
OrgAbuseEmail:  legal@mksys.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/MCL89-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
AS397131	Everythink Innovations Limited	CA
AS32169	CME Networks, LLC	US

Upstreams

AS Number	Description	Country
AS397131	Everythink Innovations Limited	CA
AS32169	CME Networks, LLC	US