AS46286 Cook County

COOK-COUNTY - Cook County · registered in the United States

IPv4 addresses2,0483 prefixes · <0.001% of announced IPv4

Rank in United States#6,356largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#23,475of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS46286 in ASN lookup Look up an IP in this network (12.218.238.1) All networks in United States

IPv4 prefixes

All 3 prefixes, in address order.

12.218.238.0/23
66.99.240.0/23
162.217.184.0/22

Similar-sized networks in United States

ASNNameIPv4 addresses

AS46186#6353 GILD-SCI - Gilead Sciences2,048

AS46241#6354 WASHTENAW-ISD-ASN - Washtenaw ISD2,048

AS46244#6355 WEBMD-IDC1-AS - WebMD, LLC2,048

AS46339#6357 AS-CSDVRS - ZP Better Together, LLC2,048

AS46445#6358 TELPAGE-EMP - TELPAGE2,048

AS46494#6359 CHRISCOMCO - Christensen Communications Company2,048

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