AS160 The University of Chicago

U-CHICAGO-AS - The University of Chicago · registered in the United States

IPv4 addresses115,2005 prefixes · 0.004% of announced IPv4

Rank in United States#589largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#1,752of 79,396 networks with IPv4

IPv62 x /482 prefixes

CountryUnited States18,679 ASNs registered there

Open AS160 in ASN lookup Look up an IP in this network (128.135.0.1) All networks in United States

IPv4 prefixes

All 5 prefixes, in address order.

128.135.0.0/16
192.5.85.0/24
192.170.192.0/18
198.177.153.0/24
205.208.0.0/17

IPv6 prefixes

All 2 prefixes.

2605:9a00::/48
2605:9a00:10::/48

Similar-sized networks in United States

ASNNameIPv4 addresses

AS54801#586 ZILLION-NETWORK - Zillion Network Inc.117,760

AS6102#587 CBSCORPORATE - CBS inc.115,968

AS36327#588 VINAKOM - VINAKOM COMMUNICATIONS115,200

AS15227#590 LUMOS - LUMOS Networks, Inc.115,200

AS32440#591 LONI - Louisiana Board of Regents/Louisiana Optical Network Initiative (LONI)114,912

AS11878#592 TZULO - tzulo, inc.114,432

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