AS17756 Australia Post

AUSPOST - Australia Post · registered in Australia

IPv4 addresses63,23231 prefixes · 0.002% of announced IPv4

Rank in Australia#79largest network in AU by IPv4 space, of 1,660 · 0.16% of AU

Rank worldwide#3,574of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryAustralia1,688 ASNs registered there

Open AS17756 in ASN lookup Look up an IP in this network (155.144.0.1) All networks in Australia

IPv4 prefixes

All 31 prefixes, in address order.

155.144.0.0/20
155.144.16.0/22
155.144.20.0/22
155.144.24.0/21
155.144.32.0/20
155.144.48.0/22
155.144.52.0/23
155.144.63.0/24
155.144.64.0/19
155.144.96.0/22
155.144.100.0/23
155.144.102.0/23
155.144.104.0/21
155.144.112.0/23
155.144.114.0/24
155.144.115.0/24
155.144.116.0/22
155.144.120.0/21
155.144.128.0/20
155.144.145.0/24
155.144.146.0/23
155.144.148.0/22
155.144.152.0/21
155.144.160.0/19
155.144.192.0/19
155.144.224.0/20
155.144.240.0/21
155.144.248.0/22
155.144.252.0/23
155.144.254.0/23
203.171.5.0/24

Similar-sized networks in Australia

ASNNameIPv4 addresses

AS141400#76 COMCARE-AS-AP - COMCARE65,536

AS150301#77 WATERCORP-NON-AS-AP - WATER CORPORATION65,536

AS7486#78 NDMPL-AS-AP - News Digital Media Pty Limited65,280

AS38719#80 DREAMSCAPE-AS-AP - Dreamscape Networks Limited62,208

AS9880#81 NEXTGENNET-AS1-AU-AP - NextGen.Net Pty Ltd, North Sydney57,856

AS18371#82 NCABLE-AP - Neighbourhood Cable56,320

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