Vm and Sprint in general have poor coverage in our area and I'm getting sick of it. At&t seems to do the best in our area so I'm looking for a prepaid alternative on their network. T mobile is worse than Vm here. A straight talk rep showed me that their phones indicate on the box which network they use, but I can't find a list of devices anywhere. The straight talk website is practically useless. I'm looking to upgrade two phones from the evo 3d (evo v 4g) to an at&t network, suggestions?