AS1201 Old Dominion University

ASN-ODU-AS-AS - Old Dominion University · registered in the United States

IPv4 addresses131,07217 prefixes · 0.004% of announced IPv4

Rank in United States#530largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#1,584of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS1201 in ASN lookup Look up an IP in this network (128.82.0.1) All networks in United States

IPv4 prefixes

All 17 prefixes, in address order.

128.82.0.0/20
128.82.16.0/22
128.82.20.0/23
128.82.22.0/23
128.82.24.0/21
128.82.32.0/19
128.82.64.0/21
128.82.72.0/22
128.82.76.0/22
128.82.80.0/20
128.82.96.0/22
128.82.100.0/23
128.82.102.0/23
128.82.104.0/21
128.82.112.0/20
128.82.128.0/17
157.21.0.0/16

Similar-sized networks in United States

ASNNameIPv4 addresses

AS4190#527 BINGHAMTON-U - Binghamton University131,072

AS356#528 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD)131,072

AS360#529 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD)131,072

AS1701#531 AS1701 - National Aeronautics and Space Administration131,072

AS1832#532 SMU - Southern Methodist University131,072

AS3452#533 UAB-AS - University of Alabama at Birmingham131,072

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