I have been a user of Republic since beta testing and have never had any trouble with coverage. I have been using a Moto G4 for over 2 years and have not had any problem with coverage. I purchased an unlocked Moto G6 on sale before Republic put theirs on sale. When I went to purchase the SIM card kit, I got the message " Our SIM card does not have coverage in XXX" . Can I switch my current SIM card from my G4 to the new G6 or should I return the phone I purchase and buy the one on sale, if it still is, from Republic?