I assume you are in Australia, and want to know about 3G. The reason I was happy to get a US TP was because Telstra uses 900 in the city, as it has a deal with Hutchinson (now part of Vodafone Hutchinson) and 850 everywhere.
Originally Posted by vivekjk
For some reason Telstra does what the US does, where Optus/Virgin and Vodafail follow the Europeans.
So, my UK Pre 3 works with 3G in the city, but not in the country. This week my US Pre3 should arrive, and I'm expecting it to work everywhere.
BTW, Telstra also implemented the same version of "4G" as AT&T.
lastly, just to head off any more questions, I got a generic tablet prepaid SIM for Telstra today. Unfortunately they only had microSIMs and I couldn't get a converter. Never mind, I hacked the AT&T SIM that came with the TP, and put the microSIM inside it (Thanks Gizmodo for the idea), and it worked just fine!