 How to call:
011 - Exit code when making an international call from Puerto Rico
84 - Vietnamese country code for inbound calls
518 - Da Nang City city code
011 + 84 + 518 + Local Number - International dialing code format
 World Times:
The time in Puerto Rico is now 22:07:42 PM (10:07:42 PM)
The time in Da Nang City Vietnam is now 09:07:42 AM (09:07:42 AM)
 Mobile codes:
To call a mobile phone in Vietnam from Puerto Rico use the following dialing code format: 011 + 84 + 9# + The Number
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