AS18220 Australian Defence Organisation

AUS-DEFENCE-AS-AP - Australian Defence Organisation · registered in Australia

IPv4 addresses2,8165 prefixes · <0.001% of announced IPv4

Rank in Australia#289largest network in AU by IPv4 space, of 1,660 · <0.01% of AU

Rank worldwide#19,172of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryAustralia1,688 ASNs registered there

Open AS18220 in ASN lookup Look up an IP in this network (202.12.69.1) All networks in Australia

IPv4 prefixes

All 5 prefixes, in address order.

202.12.69.0/24
203.6.100.0/22
203.6.104.0/22
203.6.114.0/24
203.10.114.0/24

IPv6 prefixes

All 1 prefix.

2401:6bfd::/32

Similar-sized networks in Australia

ASNNameIPv4 addresses

AS136784#286 VALVENETWORKS-AS-AP - Valve Networks Pty Ltd3,072

AS7578#287 GSL - Global Secure Layer2,816

AS55736#288 DataKnox-DNX - Dataknox Pty Limited2,816

AS140576#290 VPSBLOCKSPTYLTD-AS-AP - VPSBlocks Pty Ltd2,816

AS58940#291 DEDAUS-AS-AP - Dedicated Servers Australia2,816

AS9290#292 GOHOSTING-AS-AP - GoHosting2,816

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