The closure starts next week with services in the Northern Territory and Western Australia to be shut off from 3 April.
And Optus 2G customers in South Australia, Queensland, Victoria, New South Wales, Tasmania and the ACT will see their 2G services end in August.
The Optus 2G closure follows Telstra’s shutdown of its 2G network late last year. Vodafone plans to shut 2G services nationally in September.
“This is the right time for us to step away from 2G. Customer levels using our 2G mobile network, which was first established in 1993, have significantly decreased in recent years as greater smartphone usage and advances in 4G technologies drive customer preferences for mobile data and faster speeds,” says Dennis Wong, managing director of Networks at Optus.
The shutdown of 2G GSM networks in Australia will also affect Virgin Mobile and Optus wholesale service providers using the networks.
“Our priority has been to prepare our customers for this change and ensure they have sufficient time to upgrade to newer devices. This has involved a range of letters, emails and texts sent over the past 11 months to help them with the transition as much as possible,” Wong said.