#
# 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/
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# Copyright 1997-2025, American Registry for Internet Numbers, Ltd.
#

ASNumber: 11449
ASName: INTERACTIVEBROKERS
ASHandle: AS11449
RegDate: 1998-08-26
Updated: 2020-05-18
Ref: https://rdap.arin.net/registry/autnum/11449

OrgName: Interactive Brokers LLC
OrgId: IBL-10
Address: 209 South LaSalle St.
Address: 10th Floor, Suite 1000
City: Chicago
StateProv: IL
PostalCode: 60604
Country: US
RegDate: 2004-09-03
Updated: 2011-09-24
Ref: https://rdap.arin.net/registry/entity/IBL-10

OrgTechHandle: MTS10-ARIN
OrgTechName: Sadus, Michael Todd
OrgTechPhone: +1-312-542-6800
OrgTechEmail: msadus@interactivebrokers.com
OrgTechRef: https://rdap.arin.net/registry/entity/MTS10-ARIN

OrgAbuseHandle: MTS10-ARIN
OrgAbuseName: Sadus, Michael Todd
OrgAbusePhone: +1-312-542-6800
OrgAbuseEmail: msadus@interactivebrokers.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/MTS10-ARIN

RTechHandle: SYSTE602-ARIN
RTechName: System Administration
RTechPhone: +1-203-618-5700
RTechEmail: admin@interactivebrokers.com
RTechRef: https://rdap.arin.net/registry/entity/SYSTE602-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 1997-2025, American Registry for Internet Numbers, Ltd.
#

IPv4 Results:

AS11449 Interactive Brokers LLC
127.255.255.255 - 127.255.255.255
127.255.255.255 - 127.255.255.255
IPv6 not found