I know for a fact the developer 920's are penta band. I hear different things about the one's from rogers. head over to wpcentral and check out there forums. I beleive there is a heated discussion still going on abou tthis very same thing. What version of wp8 920 works with what carriers, what bands, rogers vs usa phones, etc. good luck. Push comes to shove just create a account and ask some one in your shoes who actually has one. Your bound to find someone in that forum. good luck.