The Australian auction of 1800 MHz band spectrum auction raised AU $543.5 million, with Optus, Telstra, TPG and Vodafone all buying spectrum in the auction, according to the Australian Communications and Media Authority.  


BidderTotal price
Optus Mobile$196 million
Telstra$191 million
TPG Internet$88 million
Vodafone$68 million

source: ACMA
A table detailing who secured which spectrum lots where is available here.