I use the Wilson Sleek also, though the one I have is switchable between my Verizon MiFi and my AT&T iPhone. The Amazon link from my purchase says it is the 813426, though the labels on the back of the unit say 813425 and model 2B3425. It has a switch on the side to change cell networks. I also got the home/office accessory kit with antenna, stand, and charger.