Mobiphone
216 Tran Duy Hung Road,
Cau Giay District, Hanoi
T : (84-4) 783 1768
F : (84-4) 783 1734
W : www.mobifone.com.vn

Vinaphone
57A Huynh Thuc Khang Street,
Dong Da District, Hanoi
T : (84-4) 835 7501
W : www.vinaphone.com.vn