ASN AS26052 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS26052?

AS26052 is listed under Fortis Clearing Chicago 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.

AS26052 Fortis Clearing Chicago LLC

ASN Lookup Tool

Fortis Clearing Chicago LLC abnamroclearing.com

US 4 Routes

AS Data

AS26052

AS26052 – Fortis Clearing Chicago LLC

AS Number	26052
AS Name	ABN-AMRO-CLEARING-USA-LLC
Organization	Fortis Clearing Chicago LLC(fcc-89)
Country	US
Website	abnamroclearing.com
Number of IPv4 Routes	4
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2002-06-26

ASN Intelligence API for production workflows

Use ASN data for AS26052 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
64.29.96.0/20	AS26052	Fortis Clearing Chicago LLC	Fortis Clearing Chicago LLC	4096
64.29.97.0/24	AS26052	Fortis Clearing Chicago LLC	Fortis Clearing Chicago LLC	256
64.29.96.0/24	AS26052	Fortis Clearing Chicago LLC	Fortis Clearing Chicago LLC	256
64.29.101.0/24	AS26052	Fortis Clearing Chicago LLC	Fortis Clearing Chicago 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:       26052
ASName:         ABN-AMRO-CLEARING-USA-LLC
ASHandle:       AS26052
RegDate:        2002-06-26
Updated:        2023-11-06    
Ref:            https://rdap.arin.net/registry/autnum/26052


OrgName:        Fortis Clearing Chicago LLC
OrgId:          FCC-89
Address:        175 W Jackson Blvd
Address:        Suite 2050
City:           Chicago
StateProv:      IL
PostalCode:     60604
Country:        US
RegDate:        2002-06-26
Updated:        2024-11-04
Ref:            https://rdap.arin.net/registry/entity/FCC-89


OrgRoutingHandle: NIT17-ARIN
OrgRoutingName:   Network Infrastructure Team
OrgRoutingPhone:  +1-312-604-8324 
OrgRoutingEmail:  GlobalNetworkOps.ap@abnamroclearing.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/NIT17-ARIN

OrgTechHandle: NIT17-ARIN
OrgTechName:   Network Infrastructure Team
OrgTechPhone:  +1-312-604-8324 
OrgTechEmail:  GlobalNetworkOps.ap@abnamroclearing.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NIT17-ARIN

OrgAbuseHandle: NIT17-ARIN
OrgAbuseName:   Network Infrastructure Team
OrgAbusePhone:  +1-312-604-8324 
OrgAbuseEmail:  GlobalNetworkOps.ap@abnamroclearing.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NIT17-ARIN

OrgNOCHandle: NIT17-ARIN
OrgNOCName:   Network Infrastructure Team
OrgNOCPhone:  +1-312-604-8324 
OrgNOCEmail:  GlobalNetworkOps.ap@abnamroclearing.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NIT17-ARIN

RNOCHandle: NIT17-ARIN
RNOCName:   Network Infrastructure Team
RNOCPhone:  +1-312-604-8324 
RNOCEmail:  GlobalNetworkOps.ap@abnamroclearing.com
RNOCRef:    https://rdap.arin.net/registry/entity/NIT17-ARIN

RTechHandle: NIT17-ARIN
RTechName:   Network Infrastructure Team
RTechPhone:  +1-312-604-8324 
RTechEmail:  GlobalNetworkOps.ap@abnamroclearing.com
RTechRef:    https://rdap.arin.net/registry/entity/NIT17-ARIN

RAbuseHandle: NIT17-ARIN
RAbuseName:   Network Infrastructure Team
RAbusePhone:  +1-312-604-8324 
RAbuseEmail:  GlobalNetworkOps.ap@abnamroclearing.com
RAbuseRef:    https://rdap.arin.net/registry/entity/NIT17-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
AS13335	Cloudflare, Inc.	US
AS46887	Crown Castle Fiber LLC	US
AS1239	Cogent Communications, LLC	US
AS23352	DEFT.COM	US
AS174	Cogent Communications, LLC	US

Upstreams

AS Number	Description	Country
AS13335	Cloudflare, Inc.	US
AS46887	Crown Castle Fiber LLC	US
AS23352	DEFT.COM	US
AS174	Cogent Communications, LLC	US