AS17055 University of Utah

UTAH - University of Utah · registered in the United States

IPv4 addresses393,98432 prefixes · 0.013% of announced IPv4

Rank in United States#193largest network in US by IPv4 space, of 18,338 · 0.03% of US

Rank worldwide#678of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryUnited States18,679 ASNs registered there

Open AS17055 in ASN lookup Look up an IP in this network (128.110.0.1) All networks in United States

IPv4 prefixes

All 32 prefixes, in address order.

128.110.0.0/17
128.110.128.0/18
128.110.192.0/19
128.110.224.0/19
155.97.0.0/16
155.98.0.0/19
155.98.32.0/20
155.98.48.0/20
155.98.64.0/18
155.98.128.0/17
155.99.0.0/17
155.99.128.0/20
155.99.144.0/24
155.99.145.0/24
155.99.146.0/23
155.99.148.0/22
155.99.152.0/21
155.99.160.0/19
155.99.192.0/18
155.100.0.0/16
155.101.0.0/18
155.101.64.0/23
155.101.66.0/24
155.101.67.0/24
155.101.68.0/22
155.101.72.0/21
155.101.80.0/20
155.101.96.0/19
155.101.128.0/17
192.5.12.0/24
199.104.93.0/24
204.99.128.0/24

IPv6 prefixes

All 1 prefix.

2604:c340::/32

Similar-sized networks in United States

ASNNameIPv4 addresses

AS54004#190 LIGHTPATH - Cablevision Lightpath LLC408,320

AS6939#191 HURRICANE - Hurricane Electric LLC395,061

AS3136#192 STATE-OF-WISCONSIN-AS1 - State of WI Dept. of Administration394,496

AS357#194 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD)393,216

AS361#195 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD)393,216

AS11663#196 SUG-1 - State of Utah392,704

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