 How to call:
00 - Exit code when making an international call from Vietnam
52 - Mexican country code for inbound calls
81 - Monterrey city code
00 + 52 + 81 + Local Number - International dialing code format
 World Times:
The time in Vietnam is now 15:57:28 PM (03:57:28 PM)
The time in Monterrey Mexico is now (CLICK FOR TIME ZONES)
 Mobile codes:
To call a mobile phone in Mexico from Vietnam use the following dialing code format: 00 + 52 + 1 + The Number
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