The FCC recently approved a Samsung handset that has all the basic markings of an “Active” variant of the Galaxy S8.
The SM-G892A supports AT&T’s LTE bands, in addition to Bluetooth and WiFi. The documentation at the FCC (see below) has drawing of the device in question, andclearly resembles that of previous Active-branded handsets from Samsung. The drawing also includes the AT&T logo.
Samsung’s Galaxy S Active handsets are typically AT&T exclusives. The FCC documents don’t reveal any other details about the phone, such as the screen size, processor type, or even the operating system.