2025-04-14 00:00:00 Airsimo provides instant, reliable connectivity in 190+ countries with flexible and unlimited data plans for travellers and businesses. Stay connected effortlessly without physical SIM cards— activate and manage your plan on the go. What is an eSIM Card? An eSIM card provides mobile data like a regular SIM card but is digital and international, eliminating expensive roaming fees. You can use an eSIM alongside your local SIM card to receive FaceTime calls, iMessages or WhatsApp messages with your regular number.