Dau Tu Va Dich Vu Vien Thong Tekom Joint Stock Company Address: No 17D, Lane 52, Giang Van Minh Street, Doi Can Ward, Ba Dinh District, Ha Noi City Enterprise code: 0102614048 Phone: 0242732645 Representative: Nguyen Phuong Thinh Adress: 530 Tran Hung Dao, Ngoc Chau, Hai Duong City, Hai Duong Province Doi Can Ward, Ba Dinh District, Ha Noi CityFounding date: 17 - 1 - 2008