amaysim

Owned directly by Optus, amaysim is one of Australia's largest prepaid MVNOs, operating entirely on the Optus 4G and 5G network. They specialise in 28-day, short-term (7-day), and long-expiry (365-day) prepaid cycles, featuring generous data allocations and unlimited data banking.

amaysim often has discounts for new customers and includes standard international calling to up to 42 countries on almost all of its baseline plans.