+378 is the international dialing code for San Marino. A number has 6 to 10 digits after the country code.
How to dial a +378 number
- From a mobile phone: dial +378 and then the full number — keep the leading zero of the area code (for example +378 06 … is Rome).
- From the US or Canada: dial 011 378 and then the number.
- From the UK and most of Europe: dial 00 378 and then the number.
- From Russia: dial 8~10 378 and then the number — or simply save it with +378 and call from a mobile.
Country using +378
- San Marino — code +378, 6 to 10 digits
Nearby codes
Where to go next
- All country codes — the full list from +1 to +998
- How to call another country — exit codes and dialing rules
- Russian version — the same page in Russian