Vietnam to apply new area codes from 2017
According to the recent announcement of the Ministry of Information and Communications, the area code change will be applied for 59 cities and provinces in three phases, from February 11 to June 17. Most of the new codes will be three-digit ones, except for Hanoi and HCM City.

Under the decision of the Ministry of Information and Communications announced on November 22, all but four out of 63 Vietnamese cities and provinces are slated to have their area code for landline numbers changed by February 2017.
The ministry said the new area codes will be applied for 59 cities and provinces in three phases, from February 11 to June 17, with steps taken to ensure the change will not confuse the public.
In Vietnam, a landline phone number reads as follows: (country code) (area code) (phone number). The country code is +84 but it is not necessary to dial the area code to call within a city or province.
The ministry noted that the area code change is necessary as the current codes are inconsistent, with “some provinces having a three-digit area code while others have one- or two-digit codes.”
The full phone numbers therefore range from ten to 11 digits, which are confusing and hard to remember, going against international practice, according to the ministry.
So, the ministry has decided to make all area codes three-digit number, except for Hanoi and HCM City, to remove the confusion.
The ministry also said technical measures would be enacted along with the number changes to assist the public.
Namely, within 30 days from the area code change, people will still able to dial the old code if they happen to forget the new one. In the 30 subsequent days, the callers will hear an announcement of the new area code when they dial the old number. Finally, two months after the area code change, people will only be able to make a call if they dial the correct area code.
Most of the new codes will be three-digit ones, except for Hanoi and HCM City.
Of the 63 cities and provinces, four northern provinces are allowed to keep their area codes: Vinh Phuc (211), Phu Tho (210), Hoa Binh (218) and Ha Giang (219).
The ministry said the new area codes will be applied for 59 cities and provinces in three phases, from February 11 to June 17, with steps taken to ensure the change will not confuse the public.
![]() Photo for illustration.
|
The ministry noted that the area code change is necessary as the current codes are inconsistent, with “some provinces having a three-digit area code while others have one- or two-digit codes.”
The full phone numbers therefore range from ten to 11 digits, which are confusing and hard to remember, going against international practice, according to the ministry.
So, the ministry has decided to make all area codes three-digit number, except for Hanoi and HCM City, to remove the confusion.
The ministry also said technical measures would be enacted along with the number changes to assist the public.
Namely, within 30 days from the area code change, people will still able to dial the old code if they happen to forget the new one. In the 30 subsequent days, the callers will hear an announcement of the new area code when they dial the old number. Finally, two months after the area code change, people will only be able to make a call if they dial the correct area code.
Most of the new codes will be three-digit ones, except for Hanoi and HCM City.
Of the 63 cities and provinces, four northern provinces are allowed to keep their area codes: Vinh Phuc (211), Phu Tho (210), Hoa Binh (218) and Ha Giang (219).

11:37, 2025/02/23
Government-backed waste management startups to be launched
By 2030, each province will have at least five models of senior-led waste collection and sorting.

15:59, 2025/02/16
Hanoi makes remarkable leap in the DTI ranking
Hanoi has been rolling out initiatives to accelerate digital transformation.

22:13, 2025/02/12
Hanoi develops e-commerce database
The database allows for identifying which tax collector supervises each taxpayer.

18:35, 2025/02/09
Hanoi to pilot multiple digital transformation models
Hanoi will step up efforts to build a modern, proactive administrative structure, and improve the legal system.

21:17, 2025/01/13
Government to set aside 3% budget for sci-tech development: Party Chief
Policies to remove barriers to scientific and technological development and maximize creativity must be finalized by 2025.

16:50, 2025/01/09
Hanoi aims to maintain its second-highest EBI ranking
Hanoi laid out a goal to expand consumer market through e-commerce channels and promote cross-border transactions to help businesses export.