Dialling Code for San Marino
How to call San Marino from abroad
Facts last checked 9 October 2026.
The international dialling code for San Marino is +378. To call San Marino from the UK, dial 00 then 378, followed by the local number. From the US or Canada, dial 011 then 378. On a mobile phone you can simply dial +378 directly.
Staying connected in San Marino
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International Prepaid SIM Card
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Portable Power Bank
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San Marino calling details
| Country code | +378 |
|---|---|
| Internet domain | .sm |
| Emergency number | 112 (works on most mobile networks worldwide) |
| Time zone | UTC+01:00 — check the time before you call |
| Capital | City of San Marino |
Dialling codes of neighbouring countries
| Italy | +39 |
|---|
San Marino in context
- San Marino covers 61 km², making it the 192nd largest of the 196 countries on this site.
- Its population density of about 560 people per km² ranks 12th of 196 (1st = most crowded).
- It shares a land border with 1 country: Italy.
- San Marino is landlocked, with no direct coastline.
- With 34,132 people, San Marino holds less than 0.1% of the population of Southern Europe.
- That is less than 0.1% of the Europe total counted on this site.
- Traffic drives on the right, and calendars start the week on Monday.
- San Marino is a member state of the United Nations.
Calling San Marino — FAQ
What is the international dialling code for San Marino?
The dialling code for San Marino is +378.
How do I call San Marino from the UK?
To call San Marino from the UK, dial 00 378 followed by the local number (drop any leading 0).
How do I call San Marino from the US?
To call San Marino from the US, dial 011 378 followed by the local number.
Do other countries share the +378 dialling code?
No — +378 is used exclusively by San Marino.
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