If you intend on travelling outside metropolis locations, you might want to look at a Telstra sim as these offer you the ideal protection in rural Australia. The Australia Submit store while in the departures hall of T1 sells Telstra sim cards. There are also a number of private counters https://sydneydomesticairportlimo07823.dbblog.net/58195518/indicators-on-sydney-domestic-airport-limousine-you-should-know