AS45128 Australian Nuclear Science and Technology Organisation,

ANSTO-AS-AP - Australian Nuclear Science and Technology Organisation, · registered in Australia

IPv4 addresses65,5361 prefixes · 0.002% of announced IPv4

Rank in Australia#63largest network in AU by IPv4 space, of 1,660 · 0.17% of AU

Rank worldwide#3,001of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryAustralia1,688 ASNs registered there

Open AS45128 in ASN lookup Look up an IP in this network (137.157.0.1) All networks in Australia

IPv4 prefixes

All 1 prefix, in address order.

137.157.0.0/16

IPv6 prefixes

All 1 prefix.

2001:df0:93::/48

Similar-sized networks in Australia

ASNNameIPv4 addresses

AS45213#60 USQNET-AS-AP - University of Southern Queensland,65,536

AS58877#61 CSUNIC1-AS-AP - Charles Sturt University65,536

AS24101#62 UNE-AS-AP - University of New England65,536

AS9348#64 SLVTSD-CBN-AP - Victorian Cultural Network65,536

AS9983#65 ABS-AS-AP - Australian Bureau of Statistics.65,536

AS10079#66 UNIWESTSYD-AS-AP - University of Western Sydney65,536

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