AS4201 Oregon State University

ORST-AS - Oregon State University · registered in the United States

IPv4 addresses65,7927 prefixes · 0.002% of announced IPv4

Rank in United States#937largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#2,764of 79,396 networks with IPv4

IPv6256 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS4201 in ASN lookup Look up an IP in this network (128.193.0.1) All networks in United States

IPv4 prefixes

All 7 prefixes, in address order.

128.193.0.0/17
128.193.128.0/18
128.193.192.0/19
128.193.224.0/21
128.193.232.0/21
128.193.240.0/20
199.201.139.0/24

IPv6 prefixes

All 1 prefix.

2620:105:f000::/40

Similar-sized networks in United States

ASNNameIPv4 addresses

AS30674#934 BAYLORU - Baylor University65,792

AS398846#935 LOGIS-AS-1 - Local Government Information Systems Association65,792

AS316#936 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD)65,792

AS6510#938 BYU - Brigham Young University65,792

AS11399#939 WILLIAMSCOLLEGE - Williams College65,792

AS545#940 NRI - Corporation for National Research Initiatives65,792

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