AS299 University of California, Irvine

UCINET-AS - University of California, Irvine · registered in the United States

IPv4 addresses262,4047 prefixes · 0.008% of announced IPv4

Rank in United States#264largest network in US by IPv4 space, of 18,338 · 0.02% of US

Rank worldwide#906of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)3 prefixes

CountryUnited States18,679 ASNs registered there

Open AS299 in ASN lookup Look up an IP in this network (128.195.0.1) All networks in United States

IPv4 prefixes

All 7 prefixes, in address order.

128.195.0.0/16
128.200.0.0/16
137.164.23.92/31
137.164.24.120/31
160.87.0.0/16
169.234.0.0/16
192.5.19.0/24

IPv6 prefixes

All 3 prefixes.

2607:f380:1::118:9a41:75c0/123
2607:f380:1::118:9a41:8780/123
2607:f538::/32

Other ASNs named University of California, Irvine

1 other network uses the same organisation name; together with AS299 they announce 262,408 IPv4 addresses.

ASNNameIPv4 addresses

AS2543UCIMC-AS - University of California, Irvine US4

Similar-sized networks in United States

ASNNameIPv4 addresses

AS370#261 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD)264,192

AS27357#262 RACKSPACE - Rackspace Hosting263,936

AS19902#263 NET-STATE-OHIO - Department of Administrative Services262,912

AS14298#265 EPA-NET - Environmental Protection Agency262,400

AS82#266 OPENTEXT - Attachmate Corp.262,400

AS291#267 ESNET-EAST - ESnet262,144

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