You can update all your new contacts converted from the 11-digit numbers to 10-digit numbers in your current contact list with 3 simple steps on My MobiFone app. Particularly, this feature is free for all customers, including MobiFone subscribers and other networks' subscribers.
On October 2, 2018, after 5 rounds of converting 11-digit to 10-digit mobile subscribers in accordance with Ministry of Information and Communications plan, MobiFone successfully converted all its 14 million 11-digit subscribers of 012x to 07x prefixes.
Following the successful conversion of 11 to 10-digit subscribers, MobiFone will continue to offer more than 20 million subscribers 07X - a completely new headline in the mobile telecommunications market.
On the night of the 20th, in the morning of September 21st, MobiFone officially implemented the second conversion from 0121 to 079. This is a big shift because of the concept of many Customers, the number 079 is considered a good number, meaning good fortune. This makes the number of new subscribers much more valuable.