AS18055 Department of Human Services

CENTRELINK - Department of Human Services · registered in Australia

IPv4 addresses21,50423 prefixes · <0.001% of announced IPv4

Rank in Australia#107largest network in AU by IPv4 space, of 1,660 · 0.06% of AU

Rank worldwide#5,864of 79,396 networks with IPv4

IPv61 x /32 (65,537 x /48)2 prefixes

CountryAustralia1,688 ASNs registered there

Open AS18055 in ASN lookup Look up an IP in this network (103.45.254.1) All networks in Australia

IPv4 prefixes

All 23 prefixes, in address order.

103.45.254.0/23
161.146.160.0/23
161.146.192.0/22
161.146.196.0/22
161.146.200.0/23
161.146.202.0/23
161.146.204.0/22
161.146.208.0/20
161.146.224.0/20
192.108.99.0/24
192.195.44.0/22
192.195.48.0/23
192.195.50.0/23
192.195.55.0/24
202.59.247.0/24
203.13.0.0/21
203.13.8.0/23
203.13.10.0/24
203.13.11.0/24
203.13.12.0/22
203.13.43.0/24
203.80.58.0/23
203.217.150.0/23

IPv6 prefixes

All 2 prefixes.

2001:df0:86::/48
2407:6a00::/32

Similar-sized networks in Australia

ASNNameIPv4 addresses

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AS38172#108 IPSTAR-AS-AU - IPSTAR Australia Pty Ltd.21,504

AS134090#109 LEAP-AS-AP - Leaptel20,992

AS136557#110 HOST-AS-AP - Host Universal Pty Ltd20,992

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