Changes in landline telephone area code and in Unidepot's contact from 17/6/2017

Change landline telephone area code in accordance with the Decision 2036/QĐ-BTTTT

According to Decision 2036 / QĐ-BTTTT on the changing of the landline telephone area code, the change will take place in three phases.

  • Phase 1 starts from February 11th, 2017
  • Phase 2 begins from April 15th, 2017
  • Phase 3 starts from June 17th, 2017

The change will take place within 1 month for each phase. During that time, both new and old phone area codes are running in parallel. After the 13th of March (of the 1st phase) the 14th of May (of the 2nd phase) and the 16th of July (of the 3rd round), all applicable calls must be made with the new area code. Number change notification will be provided in the next month, during which time when users dial in the old area code, there will be instructions to redial.

Below are the area code changes in each phase

Phase 1

Province/City(From 11/2/2017 – 13/3/2017)Old area codeNew area code
Son La22212
Lai Chau231213
Lao Cai20214
Dien Bien230215
Yen Bai29216
Quang Binh52232
Quang Tri53233
Thua Thien – Hue54234
Quang Nam510235
Da Nang511236
Thanh Hoa37237
Nghe An38238
Ha Tinh39239


Phase 2

Province/City(From 15/4/2017 to 14/5/2017)Old area codeNew area code
Quang Ninh33203
Bac Giang240204
Lang Son25205
Cao Bang26206
Tuyen Quang27207
Thai Nguyen280208
Bac Can281209
Hai Duong320220
Hung Yen321221
Bac Ninh241222
Hai Phong31225
Ha Nam351226
Thai Binh36227
Nam Dinh350228
Ninh Binh30229
Ca Mau780290
Bac Lieu781291
Can Tho710292
Hau Giang711293
Tra Vinh74294
An Giang76296
Kien Giang77297
Soc Trang79299


Phase 3

Province/City(From 17/6/2017 to 16/7/2017)Old area codeNew area code
Hanoi424
Ho Chi Minh City828
Dong Nai61251
Binh Thuan62252
Ba Ria – Vung Tau64254
Quang Ngai55255
Binh Dinh56256
Phu Yen57257
Khanh Hoa58258
Ninh Thuan68259
Kon Tum60260
Dak Nong501261
Dak Lak500262
Lam Dong63263
Gia Lai59269
Vinh Long70270
Binh Phuoc651271
Long An72272
Tien Giang73273
Binh Duong650274
Ben Tre75275
Tay Ninh66276
Dong Thap67277


Changes in Unidepot’s contact from June 17th, 2017

According to the above Annoucment, from June 17th, 2017, the new landline telephone area code of Ho Chi Minh City will be 28 instead of the old code of 2. Therefore, Unidepot’s telephone numbers will be changed as follows: (+84) 28 37 819 031

Please note these phone numbers to make the process of contacting Unidepot more convenient and uninterrupted during this transition.