If you'd like to call to countries which numbers start at 84, 85, 86, 87, 88, 89 (full list of supported countries here), you need to start dialing from +, 00 or 011.
For example, here is how it should be for Vietnam:
+84 and further the rest of the number;
0084 and further the rest of the number;
01184 and further the rest of the number.
Outgoing calls - numbers starting at 8
Author: Stacy Smith
Last update: February 21, 2023.
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