Latest Samsung Galaxy S7 (AT&T) (SM-G930A) - ATT firmware
Samsung Galaxy S7 (AT&T) (SM-G930A) firmware for USA (AT&T) (ATT): 1 build in the SamMobile archive, newest first. The latest is G930AUCUBCTB1 (Android 8.0.0, built 11 February 2020). Open a build to download it, or switch region with the country selector.