Yeah, no 1700 listed as GSM But.. Tmobile runs 3G on 1900MHz in some regions and if the device supports LTE/AWS band IV then it will have 4G support on 1700MHz and 3G everywhere tmo runs 3G on 1900 I don't have a citation on hand but I believe tmo's long term strategy is to ditch all 2g, convert all 2g to 3G, and convert all their 1700/2100 nationwide to run 4G... 2014 March enough lead time to not get caught in the middle/stuck on 2g in regions?