Will I still get iMessages if I switch out my US SIM card? Questions & Answers › Category: iPhone › Will I still get iMessages if I switch out my US SIM card? 0 Vote Up Vote Down Sean Tierney Staff asked 2 years ago Once I take my U.S. SIM card out, will I still receive iMessages sent to that number whenever connected to WiFi? Or do I need to be telling all friends and family to utilize something like WhatsApp? .