 How to call:
00 - Exit code when making an international call from Luxembourg
84 - Vietnamese country code for inbound calls
4 - Hanoi city code
00 + 84 + 4 + Local Number - International dialing code format
 World Times:
The time in Luxembourg is now 05:19:50 AM (05:19:50 AM)
The time in Hanoi Vietnam is now 11:19:50 AM (11:19:50 AM)
 Mobile codes:
To call a mobile phone in Vietnam from Luxembourg use the following dialing code format: 00 + 84 + 9# + The Number
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