Modem setting to USA

Hi all

I’m developing a prototype with mkr1400. Now I’m in Spain and everything goes perfect! I’m going to send the unit to the USA to test it there. The SIM inside is ready to change the provider automatically, but my question is:

Do I have to change something in modem config to be used in the USA? Or this band swiping is done by the SARA module?

Thank’s

Eduard