The 23 remaining cities and provinces will change their landline codes in the third phase of a Ministry of Information and Communications’ program, under which 59 of Vietnam’s 63 cities and provinces will have new codes.

(Source: Tuoitre)

These remaining provinces have the highest number of subscribers, at more than 3 million each, and account for 58 per cent of all subscribers in the country. They include Hanoi, Ho Chi Minh City, Dong Nai, Binh Thuan, Ba Ria Vung Tau, Quang Ngai, Binh Dinh, Phu Yen, Khanh Hoa, Ninh Thuan, Kon Tum, Dak Nong, Dak Lak, Lam Dong, Gia Lai, Vinh Long, Binh Phuoc, Long An, Tien Giang, Binh Duong, Ben Tre, Tay Ninh, and Dong Thap.

Area codes in Vinh Phuc (211), Phu Tho (21), Hoa Binh (18), and Ha Giang (19) are unchanged.

Illustrative image (Source: violet.vn)