Dau Tu Dich Vu Vien Thong Hoang Long Joint Stock Company Address: No 26, Khu 7, 2 Ha, Civil Group 17, Cluster 3, Vinh Phuc Ward, Ba Dinh District, Ha Noi City Enterprise code: 0104782168 Phone: 02422661155 Representative: Do Minh Thanh Adress: Zoom 402 C4, Tap The Giang Vo, Giang Vo Ward, Ba Dinh District, Ha Noi City Vinh Phuc Ward, Ba Dinh District, Ha Noi CityFounding date: 29 - 6 - 2010