Max HD2 IP67 LTEA - no AT&T B17 (700 MHz)?

We’re evaluating the HD2 IP67 for possible deployment. We are using AT&T and Verizon, bands 17 and 13 respectively. The location is not supported by the carriers for LTEA, but it seems reasonable to future-proof the investment by purchasing an LTEA model. However, the specs for the LTEA do not include support for B17 (AT&T). Will we lose AT&T, then?

Band 17 is actually a subset of Band 12 so you will not lose anything. Thanks