AS400227 Interactive Brokers Corp

INTERACTIVE-BROKERS-CORP - Interactive Brokers Corp · registered in the United States

IPv4 addresses5122 prefixes · <0.001% of announced IPv4

Rank in United States#12,577largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#58,586of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS400227 in ASN lookup Look up an IP in this network (72.18.209.1) All networks in United States

IPv4 prefixes

All 2 prefixes, in address order.

72.18.209.0/24
72.18.211.0/24

Other ASNs named Interactive Brokers Corp

2 other networks use the same organisation name; together with AS400227 they announce 1,792 IPv4 addresses.

ASNNameIPv4 addresses

AS27163INTERACTIVE-BROKERS-CORP - Interactive Brokers Corp US1,024

AS27164INTERACTIVE BROKERS CORP - Interactive Brokers Corp US256

Similar-sized networks in United States

ASNNameIPv4 addresses

AS400145#12574 GLADIUS-DC-01 - Gladius Technology Solutions, LLC512

AS400157#12575 ENL-ASN-EASTMAN-CHEMICAL - Eastman Chemical Company512

AS400159#12576 WAYFAIR-CAMPUS - Wayfair LLC512

AS400234#12578 AFMC-1 - Arkansas Foundation for Medical Care, Inc.512

AS400236#12579 EACS-5 - East Allen County Schools512

AS400249#12580 OC-SANITATION - Orange County Sanitation District512

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources