AIRSIM Roam lets you manage your AIRSIM account, you can top up, buy data package and check your AIRSIM status anywhere and anytime. AIRSIM is a special SIM card that combines Soft SIM and Over-the-AIR (OTA) technologies. When you travel abroad, our system will assign a suitable local SIM card to your AIRSIM according to your location. With AIRSIM, you can always enjoy great savings on roaming mobile data service. Advantages: 1. AIRSIM allows you to enjoy economical mobile data service in 130+ countries/regions. 2. You can buy the data plan or top up via AIRSIM Roam. You can enjoy the data service immediately upon your purchase and arrival. 3. You don’t need to spend time on buying local SIM cards anymore.