You have got a call from phone number beginning with 378 or 00378 or 011378 or +378 and you want to know which country is the country code 378.
Which country has 378 as dialing code?
The country code 378 (378 area code) belongs to:
378 code country is preceded either by 00 ( 00378 ) or 011 ( 011378 ) for calls made from USA and Canada and by the sign plus (+378).
Flag of San Marino :