Dich Vu Truyen Thong Quoc Gia Ava Joint Stock Company Address: 30 Khu C, Tap The Dai Hoc Thuong Mai, Mai Dich Ward, Cau Giay District, Ha Noi City Enterprise code: 0105136343 Phone: 02437688946 Representative: Nguyen Manh Hung Adress: No 681 Linh Nam, Linh Nam Ward, Hoang Mai District, Ha Noi City Mai Dich Ward, Cau Giay District, Ha Noi CityFounding date: 24 - 1 - 2011