There have been doubts that the Moto X will really make it to all four major US carriers like originally rumored, with news circulating the web that T-Mobile has not signed on to carry the device yet. Well if a recent FCC filing is to be believed, even without official T-Mobile support, a Magenta compatible version of the Moto X does exist.

According to the filing, the Motorola XT1053 has all the necessary bands to work on not only T-Mobile AWS HSPA+ and LTE, but AT&T as well. While this could certainly hit T-Mobile, if we had to guess, we’d say this is the Moto X variant that will be sold unlocked online. Much like the Nexus 4, it would work on any GSM carrier in the US. Also similar to the Nexus 4, it could be cheaper unlocked online than through T-Mobile retail stores if it does end up there, but that’s pure speculation.

Less than a week now until we know all the details. If you do plan on buying a Moto X, which carrier will you be using it on? Let us know in the comments, and while you’re at, let us know if there’s anything else you haven’t heard on the Moto X that you’re hoping to hear August 1 as well.