San Marino Dialing Code — +378

The international dialing code for San Marino is +378. To call San Marino from the United States or Canada, dial 011 + 378 + area code + local number. From Europe, dial 00 + 378 + area code + local number. On mobile phones worldwide, use +378 followed by the area code and local number.

How to Call San Marino

From USA/Canada: 011 + 378 + local number. From UK/Europe: 00 + 378 + local number. From mobile phones: +378 + local number.

San Marino City Area Codes

• San Marino City — +378 549
• Serravalle — +378 549
• Borgo Maggiore — +378 549
• Domagnano — +378 549
• Faetano — +378 549
• Fiorentino — +378 549
• Montegiardino — +378 549
• Acquaviva — +378 549
• Chiesanuova — +378 549

About San Marino International Dialing

Country calling codes are standardized by the International Telecommunication Union (ITU). The San Marino country code +378 is used to route international telephone calls to San Marino from any country in the world.