AS18431 Department of Foreign Affairs and Trade

DFAT-AS-AP - Department of Foreign Affairs and Trade · registered in Australia

IPv4 addresses7,6809 prefixes · <0.001% of announced IPv4

Rank in Australia#180largest network in AU by IPv4 space, of 1,660 · 0.02% of AU

Rank worldwide#11,151of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryAustralia1,688 ASNs registered there

Open AS18431 in ASN lookup Look up an IP in this network (203.6.160.1) All networks in Australia

IPv4 prefixes

All 9 prefixes, in address order.

203.6.160.0/21
203.6.168.0/23
203.6.170.0/24
203.6.173.0/24
203.6.174.0/23
203.6.176.0/21
203.6.184.0/23
203.6.186.0/23
203.6.188.0/22

Similar-sized networks in Australia

ASNNameIPv4 addresses

AS139049#177 GIGACOMM-AS-AP - GIGACOMM PTY LTD7,680

AS58580#178 Fastrack - Fastrack Technology7,680

AS56307#179 AC3-AS-AP - ac3, Australian Centre for Advanced Computing and Communications7,680

AS133736#181 SYNTELPTYLTD-AU - TASMANET7,680

AS24541#182 HOSTAWAYPTYLTD-AS-AP - HostAway Pty Ltd7,424

AS134141#183 B2BWHOLESALE-AS-AP - B2B Wholesale Pty Ltd7,424

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