AS18220 — AUS-DEFENCE-AS-AP Australian Defence Organisation

AS18220 announces 5 IPv4 prefixes covering 2,816 addresses and 1 IPv6 prefixes.

About this network

The AS handle AUS-DEFENCE-AS-AP is held by the Australian Defence Organisation.

What it's used for

• The address space is registered under netnames AUSDEFENCE and AUS-DEFENCE-AU, indicating internal government and defence infrastructure.
• The AS announces 2816 IPv4 addresses across 5 prefixes and 1 IPv6 prefix, while maintaining only 2 observed neighbours, a ratio consistent with an isolated internal corporate estate rather than a transit or access network.

Notable

• All registrants for the announced prefixes are the Australian Defence Organisation, matching the AS holder exactly.
• The inventory consists of a mix of /22 and /24 blocks, including 203.6.100.0/22, 203.6.104.0/22, 202.12.69.0/24, 203.6.114.0/24, and 203.10.114.0/24, alongside the 2401:6bfd::/32 IPv6 prefix.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 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
• 2401:6bfd::/32

Upstream networks

• AS38809 Vocus Advanced Services
• AS7474 SingTel Optus Pty Ltd

Adjacent networks

• AS38809 Vocus Advanced Services
• AS7474 SingTel Optus Pty Ltd