What's thin, pale and sexy as hell? If you answered Twiggy you're close, but wrong. The answer we were looking for is the AT&T version of the HTC One X, which appears to have just swung through the FCC. There's not much to reveal here that we didn't already know. The phone is capable of connecting to AT&T's HSPA+ and GSM networks thanks to the 850MHz and 1900MHz radios, but it'll also be riding along on LTE bands 4 and 17 for some 4G action. The documents also offers radiation levels for the dual-channel 802.11n and Bluetooth radios, as well as provide us with a model number: PJ83100. The final clue to its identity was buried in one of the forms that revealed the phone is running version 4.0.3 of an unidentified firmware -- we'd say it's safe to assume that's in reference to the particular edition of Ice Cream Sandwich on board. If you're a fan of charts, graphs and numbers, hit up the source link.