 How to call:
00 - Exit code when making an international call from Sao Tome
82 - South Korean country code for inbound calls
522 - Ulsan city code
00 + 82 + 522 + Local Number - International dialing code format
 World Times:
The time in Sao Tome is now 14:15:18 PM (02:15:18 PM)
The time in Ulsan South Korea is now 23:15:18 PM (11:15:18 PM)
 Mobile codes:
To call a mobile phone in South Korea from Sao Tome use the following dialing code format: 00 + 82 + Mobile Code* + The Number
*South Korea has multiple mobile carriers: 10, 11, 16, 17, 18, 19
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