Starting from 23:00 - August 8, 2018, MobiFone has conducted successfully experiment on converting the 11-digit dialing to 10-digit. This experiment was executed on 1,000 subscribers in order to prepare for the official conversion on September 15, which is according to orders from the Ministry of Information and Communications.

MobiFone has succeeded in the experiment of converting 11-digit dialing to 10-digit, starting from 23:00 on August 8, 2018 to 02:30 on August 9, 2018. As the result of this experiment, 1,000 MobiFone subscribers has successfully been converted from 11 to 10 digits.

The testing process accomplished, and the fundamental technical indicators also guarantee both notification and basic trial service (calling, texting, data) on all systems. The notification plan, steps and order of execution, as well as the collaboration among nationwide MobiFone subsidairies are insured to be co-operated  fluently and connectedly.



The MobiFone 11-digit dialing which includes 0120, 0121, 0122. 0126, 0128 will be converted to 070, 079, 077, 076, 078. According to plan, MobiFone will conduct this change in phases with different groups of subscribers, from 00:00 September 15, 2018. During the conversion time (September 15 – November 14), MobiFone will inform our customers their new numbers by SMS when the conversion finishes.

When parallel dialing period ends, MobiFone will maintain the announcement voice about guiding how to dial new numbers starting from November 14, 2018. This function will continue for at least 90 days from the end of parallel dialing periods to inform callers on their receivers’ new numbers.

To make the conversion smoothly, MobiFone offered the My MobiFone application that supports the customers to update their contacts after their conversions. Customers can officially use the changing number function on My MobiFone from September 15, 2018 – the beginning of this conversion according to the regulation of the Ministry of Information and Communications. Instead of hours wasted on changing numbers for each contact, customers can update the new phone numbers of their friends and families for a few minutes only with My MobiFone application which makes the connection not be interrupted. This function will not only be applied for MobiFone subscribers but also for subscribers from other telecom companies.

MobiFone is positively experimenting on the systems in collaboration with Viettel, Vinaphone, Gtel and Vietnamobile, maintaining the connection channels and getting ready for testing the plan prior to conversion, as well as during the official period in order to guarantee customers’ rights and clarity in communications, ensuring the good plan to begin on September 15th.