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In addition, the group developed the infrastructure in nearly 6,300 communes nationwide, including those in rural and remote areas, frontier areas and islands.

Among the districts developed with the 4G signal, there are 100 border districts in 25 provinces, such as Loc Binh, Cao Loc (Lang Son); Muong Nhe, Nam Po, Muong Cha (Dien Bien); Phong Tho, Sin Ho, Nam Nhun, Muong Te (Lai Chau); Meo Vac, Dong Van, Yen Minh, Quan Ba (Ha Giang); Muong Khuong, Bat Xat (Lao Cai); Ky Son, Anh Son (Nghe An); Tay Giang, Nam Giang (Quang Nam); Dak Mil, Cu Jut (Dak Nong); Chau Thanh, Trang Bang (Tay Ninh); Moc Hoa, Thanh Hoa (Long An); and Chau Doc, An Phu, Tinh Bien (An Giang).

Proudly, many special locations in Vietnam were covered with the 4G network, such as Dat Mui commune (Ngoc Hien district, Ca Mau), Lung Cu commune (Dong Van district, Ha Giang), Hoa Tam commune (Tuy Hoa district, Phu Yen), the Vietnam-Laos-Cambodia border turning point at Bo Y commune (Ngoc Hoi district, Kon Tum) and Fansipan mountain peak at Sa Pa district (Lao Cai).

By the end of March 2017, Viettel will be broadcasting on more than 7,300 4G stations, bring the total figure to nearly 28,000 stations nationwide; ensuring the best quality for the 4G network coverage at the inauguration time./.