What is ASN AS400227?

ASN AS400227 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS400227?

AS400227 is listed under Interactive Brokers Corp.

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.

AS400227 Interactive Brokers Corp

ASN Lookup Tool

Interactive Brokers Corp interactivebrokers.com

US 2 Routes

AS Data

AS400227

AS400227 – Interactive Brokers Corp

AS Number	400227
AS Name	INTERACTIVE-BROKERS-CORP
Organization	Interactive Brokers Corp(ibl-40)
Country	US
Website	interactivebrokers.com
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2021-11-15

ASN Intelligence API for production workflows

Use ASN data for AS400227 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
72.18.211.0/24	AS400227	Interactive Brokers Corp	Interactive Brokers Corp	256
72.18.209.0/24	AS400227	Interactive Brokers Corp	Interactive Brokers Corp	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:       400227
ASName:         INTERACTIVE-BROKERS-CORP
ASHandle:       AS400227
RegDate:        2021-11-15
Updated:        2025-12-15    
Ref:            https://rdap.arin.net/registry/autnum/400227


OrgName:        Interactive Brokers Corp
OrgId:          IBL-40
Address:        2 Pickwick Plaza
City:           Greenwich
StateProv:      CT
PostalCode:     06830
Country:        US
RegDate:        2017-07-21
Updated:        2025-12-16
Ref:            https://rdap.arin.net/registry/entity/IBL-40


OrgTechHandle: LARKI23-ARIN
OrgTechName:   Larkin, Robert 
OrgTechPhone:  +1-203-742-8108 
OrgTechEmail:  rlarkin@interactivebrokers.com
OrgTechRef:    https://rdap.arin.net/registry/entity/LARKI23-ARIN

OrgAbuseHandle: CDC18-ARIN
OrgAbuseName:   Center, Cyber Defense
OrgAbusePhone:  +1-203-618-5720 
OrgAbuseEmail:  cybersecurity@interactivebrokers.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/CDC18-ARIN

OrgAbuseHandle: LARKI23-ARIN
OrgAbuseName:   Larkin, Robert 
OrgAbusePhone:  +1-203-742-8108 
OrgAbuseEmail:  rlarkin@interactivebrokers.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/LARKI23-ARIN

OrgTechHandle: LIAOW2-ARIN
OrgTechName:   Liao, Warren 
OrgTechPhone:  +1-203-618-5809 
OrgTechEmail:  wliao@interactivebrokers.com
OrgTechRef:    https://rdap.arin.net/registry/entity/LIAOW2-ARIN

OrgNOCHandle: LARKI23-ARIN
OrgNOCName:   Larkin, Robert 
OrgNOCPhone:  +1-203-742-8108 
OrgNOCEmail:  rlarkin@interactivebrokers.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/LARKI23-ARIN

RAbuseHandle: CDC18-ARIN
RAbuseName:   Center, Cyber Defense
RAbusePhone:  +1-203-618-5720 
RAbuseEmail:  cybersecurity@interactivebrokers.com
RAbuseRef:    https://rdap.arin.net/registry/entity/CDC18-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
AS32787	Akamai Technologies, Inc.	US

Upstreams

AS Number	Description	Country
AS32787	Akamai Technologies, Inc.	US