Telstra announced plans to permanently shut off its 2G (GSM) network by the end of 2016.
In a blog posting, Mike Wright, Group Managing Director Networks at Telstra, writes that 2G traffic already accounts for less than 1% of the carrier's total network traffic.... and Telstra has not sold a 2G phone in years.
http://exchange.telstra.com.au/2014/07/23/its-time-to-say-goodbye-old-friend