Sorry to sound ignorant, but I don't know what that means exactly.
How can I tell if a phone supports the bands?
If it's a T-mo branded phone it will and that's basically it. There are very few non t-mo phones that support T-mo bands. The Gnex and gnote come to mind. As long as they support both the 1700/ 2100 bands then it will work on T-mo HSPA. And try staying on topic there is a T-mo thread that you can talk about this stuff here: T-Mobile - Android Forums
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