Last week ACMA revealed the results of its 5G auction - or 3.6GHz spectrum, to put it more formally. According to the Authority, the spectrum is a key band for 5G services, with the licenses being valid from March 2020 to December 2030.
Out of the 350 "spectrum lots" on offer, Telstra bought up 143 for a casual $386,008,400.
ACMA stated at the time that it would consider releasing lots earlier than the rollout date if a lack of negative impact could be guaranteed. As it turns out, they've already given it the go-ahead.
Telstra announced earlier today that it is already using the spectrum across the country - including in Melbourne and Sydney.