Sony’s upcoming Xperia T isn’t much of a mystery. After getting announced at IFA just a few weeks ago — where we got a nice little hands-on — all that was left to figure out was on what carrier the device would land. According to an FCC filing, which outs support for pentaband HSPA+, the handset’s likely home will be T-Mobile. In other words, it lacks LTE, which has by now become standard fare for devices here in the U.S., so boo to that. An AT&T-branded version could be on the way as well, a recent leak suggests, so perhaps we can expect the FCC or some other source to spill the beans soon.