aerobile.com provides international prepaid cards, gps and wifi routers in collaboration with some of the most leading telecom network providers in the world. international sim cards and top up services allow travelers to use cheap and reliable 3g/4g internet data and make voice calls abroad easily. services cover from asia-pacific, america, europe to africa with brands including docomo (japan), china mobile, usa at&t t-mobile, orange (france), o2 (germany), dtac (thailand), uk ee lebara three, optus (australia).