AS225 University of Virginia

VIRGINIA-AS - University of Virginia · registered in the United States

IPv4 addresses176,64027 prefixes · 0.006% of announced IPv4

Rank in United States#357largest network in US by IPv4 space, of 18,338 · 0.01% of US

Rank worldwide#1,180of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS225 in ASN lookup Look up an IP in this network (128.143.0.1) All networks in United States

IPv4 prefixes

All 27 prefixes, in address order.

128.143.0.0/16
137.54.0.0/18
137.54.64.0/19
137.54.96.0/20
137.54.112.0/21
137.54.120.0/22
137.54.124.0/22
137.54.128.0/17
192.33.115.0/24
192.33.117.0/24
192.35.48.0/23
192.131.232.0/24
198.51.208.0/24
199.111.0.0/20
199.111.16.0/22
199.111.22.0/23
199.111.24.0/21
199.111.32.0/19
199.111.100.0/22
199.111.104.0/21
199.111.142.0/23
199.111.160.0/19
199.111.192.0/20
199.111.208.0/22
199.111.212.0/22
199.111.216.0/21
199.111.224.0/19

Similar-sized networks in United States

ASNNameIPv4 addresses

AS7203#354 LEASEWEB-USA-SFO - Leaseweb USA, Inc.180,480

AS14615#355 ROCK-HILL-TELEPHONE - Comporium, Inc180,224

AS11976#356 FIDN - Fidelity Communication International Inc.176,896

AS3593#358 FRONTIER-EPIX - Frontier Communications of America, Inc.175,616

AS45#359 LLL-TIS-AS - Lawrence Livermore National Laboratory175,104

AS6300#360 CCI-TEXAS - Fidium172,800

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