LTE Bands for European Galaxy S7 (SM-G935F) while in the US I have a European model of Samsung Galaxy S7 Edge (SM-G935F), 32GB version.

It is a SIM free phone, not locked to any particular vendor. I am aware of region lock, but from my understanding it should be OK, since I have been making calls for a few months with it in Europe.

According to GSM Arena, these are the bands supported by this model:


  LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600),
  8(900), 12(700), 13(700), 17(700), 18(800), 19(800), 20(800),
  25(1900), 26(850), 28(700), 38(2600), 39(1900), 40(2300), 41(2500) -
  G935F


Currently I am using EE carrier in the UK, supporting bands 3 and 7.
AT&amp;T in the states should support bands 2, 4, 5, 17.

My assumption is, because my phone supports these bands, I should have no trouble using LTE in the US? 

Thank you for your help.
Starting from Note 5, Samsung has blessed their flagships with near-iPhone level of international cellular capabilities, as shown in the specs you've read. VoLTE and Wi-Fi calling might take a hit, but as long as AT&amp;T is willing to offer and activate a new SIM for you, you should be fine using LTE itself.