AS600 OARnet

OARNET-AS - OARnet · registered in the United States

IPv4 addresses899,548263 prefixes · 0.029% of announced IPv4

Rank in United States#111largest network in US by IPv4 space, of 18,338 · 0.07% of US

Rank worldwide#389of 79,396 networks with IPv4

IPv62 x /32 (131,072 x /48)2 prefixes

CountryUnited States18,679 ASNs registered there

Open AS600 in ASN lookup Look up an IP in this network (64.254.64.1) All networks in United States

IPv4 prefixes

All 263 prefixes, in address order.

64.254.64.0/20
130.108.0.0/18
130.108.64.0/21
130.108.72.0/24
130.108.74.0/23
130.108.76.0/22
130.108.80.0/20
130.108.96.0/21
130.108.106.0/23
130.108.108.0/22
130.108.112.0/21
130.108.120.0/24
130.108.122.0/23
130.108.124.0/22
130.108.128.0/17
131.187.0.0/17
131.187.128.0/22
131.187.136.0/21
131.187.144.0/20
131.187.160.0/20
131.187.176.0/21
131.187.184.0/24
131.187.185.32/27
131.187.185.64/26
131.187.185.128/25
131.187.186.0/23
131.187.188.0/22
131.187.192.0/19
131.187.233.0/24
131.187.234.0/23
131.187.236.0/22
131.187.240.0/21
131.187.252.0/22
131.238.28.0/24
136.227.0.0/19
136.227.32.0/20
136.227.48.0/21
136.227.56.0/22
136.227.60.0/24
136.227.61.0/24
136.227.62.0/23
136.227.128.0/21
140.141.0.0/17
140.220.0.0/16
140.228.0.0/20
143.246.0.0/19
144.50.0.0/16
146.85.0.0/18
146.85.160.0/19
146.85.224.0/19
156.63.208.0/24
157.134.0.0/17
157.134.128.0/18
157.134.192.0/19
157.134.224.0/20
157.134.248.0/21
163.11.0.0/16
192.68.223.0/24
192.88.193.0/24
192.88.194.0/23
192.131.123.0/24
192.148.235.0/24
192.148.236.0/23
192.148.238.0/23
192.148.241.0/24
192.148.243.0/24
192.148.244.0/23
192.148.251.0/24
192.150.115.0/24
192.153.27.0/24
192.153.28.0/22
192.153.32.0/24
192.153.33.0/24
192.153.35.0/24
192.153.36.0/22
192.153.40.0/24
192.153.41.0/24
192.232.16.0/22
192.232.20.0/22
192.232.24.0/21
198.30.0.0/21
198.30.8.0/22
198.30.12.0/24
198.30.14.0/23
198.30.16.0/20
198.30.32.0/20
198.30.48.0/21
198.30.64.0/20
198.30.80.0/24
198.30.82.0/23
198.30.84.0/22
198.30.90.0/23
198.30.92.0/22
198.30.96.0/19
198.30.128.0/23
198.30.130.0/24
198.30.133.0/24
198.30.134.0/23
198.30.136.0/21
198.30.144.0/21
198.30.152.0/23
198.30.156.0/22
198.30.168.0/21
198.30.176.0/22
198.30.184.0/23
198.30.186.0/24
198.30.188.0/22
198.30.192.0/21
198.30.204.0/22
198.30.208.0/20
198.30.224.0/22
198.30.231.0/24
198.30.232.0/21
198.30.240.0/20
199.18.0.0/21
199.18.8.0/22
199.18.12.0/23
199.18.15.0/24
199.18.16.0/20
199.18.32.0/20
199.18.49.0/24
199.18.50.0/23
199.18.52.0/24
199.18.54.0/23
199.18.56.0/23
199.18.58.0/24
199.18.60.0/22
199.18.64.0/22
199.18.68.0/23
199.18.70.0/24
199.18.72.0/21
199.18.80.0/24
199.18.82.0/23
199.18.84.0/22
199.18.88.0/22
199.18.92.0/23
199.18.95.0/24
199.18.96.0/19
199.18.128.0/21
199.18.136.0/23
199.18.138.0/24
199.18.140.0/23
199.18.142.0/23
199.18.144.0/20
199.18.160.0/21
199.18.168.0/29
199.18.168.8/30
199.18.168.16/28
199.18.168.32/27
199.18.168.64/26
199.18.168.128/25
199.18.169.0/24
199.18.170.0/23
199.18.172.0/22
199.18.176.0/20
199.18.192.0/19
199.18.224.0/20
199.18.240.0/23
199.18.243.0/24
199.18.244.0/22
199.18.248.0/21
199.120.181.0/24
199.218.0.0/17
199.218.128.0/18
199.218.192.0/19
199.218.224.0/20
199.218.240.0/21
199.218.248.0/24
199.218.250.0/23
199.218.252.0/22
204.57.8.0/21
204.128.217.0/24
205.133.0.0/18
205.133.64.0/21
205.133.72.0/22
205.133.78.0/23
205.133.80.0/22
205.133.84.0/23
205.133.86.0/23
205.133.88.0/21
205.133.96.0/19
205.133.128.0/20
205.133.144.0/21
205.133.184.0/21
205.133.192.0/20
205.133.208.0/21
205.133.224.0/21
205.133.232.0/24
205.133.233.0/24
205.133.234.0/23
205.133.236.0/22
205.133.240.0/20
206.21.0.0/21
206.21.8.0/22
206.21.12.0/23
206.21.15.0/24
206.21.16.0/20
206.21.32.0/20
206.21.48.0/22
206.21.53.0/24
206.21.54.0/23
206.21.64.0/20
206.21.80.0/21
206.21.88.0/23
206.21.90.0/23
206.21.92.0/22
206.21.96.0/21
206.21.106.0/23
206.21.108.0/22
206.21.112.0/20
206.21.128.0/19
206.21.172.0/22
206.21.176.0/20
206.21.192.0/18
206.244.0.0/18
206.244.64.0/20
206.244.80.0/21
206.244.88.0/23
206.244.90.0/23
206.244.92.0/22
206.244.96.0/19
206.244.128.0/19
206.244.160.0/22
206.244.168.0/21
206.244.176.0/20
206.244.192.0/18
208.108.0.0/22
208.108.4.0/23
208.108.6.0/23
208.108.8.0/22
208.108.12.0/22
208.108.16.0/20
208.108.32.0/21
208.108.40.0/22
208.108.44.0/24
208.108.45.0/24
208.108.46.0/23
208.108.48.0/24
208.108.49.0/24
208.108.50.0/24
208.108.51.0/24
208.108.52.0/24
208.108.53.0/24
208.108.54.0/24
208.108.55.0/24
208.108.56.0/23
208.108.58.0/24
208.108.59.0/24
208.108.60.0/24
208.108.61.0/24
208.108.62.0/23
208.108.64.0/20
208.108.128.0/21
208.108.168.0/21
208.108.176.0/20
208.108.229.0/24
208.108.230.0/23
208.108.234.0/23
208.108.236.0/22
208.108.240.0/23
208.108.242.0/23
208.108.244.0/22
208.108.248.0/21

IPv6 prefixes

All 2 prefixes.

2607:ab00::/32
2610:a8::/32

Other ASNs named OARnet

2 other networks use the same organisation name; together with AS600 they announce 911,096 IPv4 addresses.

ASNNameIPv4 addresses

AS3112OARNET-AS-1 - OARnet US10,012

AS13501OARNET-AS-2 - OARnet US1,536

Similar-sized networks in United States

ASNNameIPv4 addresses

AS637#108 DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD)929,280

AS14654#109 WAYPORT - AT&T Enterprises, LLC916,480

AS158#110 ERI-AS - Ericsson Inc.912,640

AS12083#112 WOW-INTERNET - WideOpenWest Finance LLC889,856

AS19527#113 GOOGLE-2 - Google LLC868,352

AS33490#114 COMCAST-33490 - Comcast Cable Communications, LLC852,480

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