What is the whois server for .au?
By default, whois server for .au TLD is whois.audns.net.au. This can be used to fetch the .au domain/website whois information. Extension .au sponsoring organisation is .au Domain Administration (auDA) and its registered on 05-03-1986.
Sponsoring Organisation Details
.au Domain Administration (auDA).
114 Cardigan Street.
Carlton VIC 3053.
Australia.
Usage
whois -h <whois server> <domain name>
For example
whois -h whois.audns.net.au hiox.au