AS23719 University of Sydney

USYD-AS-AP - University of Sydney · registered in Australia

IPv4 addresses65,5361 prefixes · 0.002% of announced IPv4

Rank in Australia#69largest network in AU by IPv4 space, of 1,660 · 0.17% of AU

Rank worldwide#3,254of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryAustralia1,688 ASNs registered there

Open AS23719 in ASN lookup Look up an IP in this network (129.78.0.1) All networks in Australia

IPv4 prefixes

All 1 prefix, in address order.

129.78.0.0/16

Similar-sized networks in Australia

ASNNameIPv4 addresses

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

AS17750#67 ASN-ENERGEX-AP - ENERGEX LIMITED65,536

AS18191#68 AIRSERVICESAUS-AP - OPTUS CUSTOMER NETWORK65,536

AS24313#70 NSW-DET-AS - NSW Department of Education65,536

AS24434#71 JCU-AS-AP - James Cook University65,536

AS56131#72 DXCCONNECT-AS-AP - DXC Connect Pty Limited65,536

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