Telstra Next G frequency/s

Telstra used to have 3G on 2100MHz, but it was shut down last year (as stated in the above link). NextG requires 850MHz.

"Previously, if you did not use a phone with 850 Mhz 3G support, the Telstra/Three joint network known as 3GIS was available on 2100 Mhz 3G within Metro areas. As of September 2012, the 3GIS network has been shut down, however some 3GIS base stations have been repurposed to the NextG network"