San Marino country code: +378

To call San Marino from another country, dial +378 followed by the local number.

• +378calling code
• SMISO country code
• +378 66 66 12 12example mobile number

How to call San Marino

1. Dial your country’s international access code, or press and hold 0 for the + sign on a mobile phone.
2. Dial 378, the country calling code for San Marino.
3. Dial the local number. Leave out the leading 0 if the local number normally starts with one.

Numbers are written in international format like this: +378 66 66 12 12. The example comes from Google’s libphonenumber data and is only a sample format.