Cong Nghe Va Dich Vu Vien Thong Phia Bac Joint Stock Company Address: 4/306, Tay Son Street, Nga Tu So Ward, Nga Tu So Ward, Dong Da District, Ha Noi City Enterprise code: 0101586207 Phone: 02462513047 Representative: Do Trung Kien Adress: No 4/306 Tay Son P.Nga Tu So, Dong Da District, Ha Noi City Nga Tu So Ward, Dong Da District, Ha Noi CityFounding date: 23 - 12 - 2004