The Viettel Telecom announced on Sept. 11 that it has fulfilled preparations for the switching process.

Viettel's staff talking to a customer. (Photo for illustration)

Particularly, all of its 11-digit mobile numbers beginning from 0162 to 0169 will become 10-digit numbers beginning from 032 to 039, and the change will start at 0.00 am, September 15 and finish by October 7. But customers will be able to use both new and old numbers till Nov. 14 this year.

Viettel will also continue sending notifications in English and Vietnamese to its subscribers until June 30, 2019.

Translated by Song Anh