International dialing guide
San Marino country code (+378)
The international country code for San Marino is +378. Use this prefix after your exit code when calling San Marino from another country, or dial the full E.164 number (+378…) with Ringvoo from your browser.
What is the San Marino country code?
Country code +378 identifies phone numbers registered in San Marino. When you call from abroad, you dial your international access code (00 in most countries, 011 from the US/Canada), then 378, then the local number. With Ringvoo, paste the full number including +378 and we handle the routing.
How to dial San Marino from abroad
- Dial your international exit code (00 in most countries, 011 from the US/Canada).
- Enter San Marino's country code 378.
- Add the local phone number, dropping any leading trunk zero if your carrier requires it.
- Or open Ringvoo, paste the full E.164 number (+378…), and call from your browser.
Example numbers for San Marino
Frequently asked questions
What is the country code for San Marino?
The international dialing code for San Marino is +378. Include it after your exit code when calling from abroad.
How do I call San Marino from the United States?
Dial 011 (US exit code), then 378, then the local number. Or use Ringvoo and enter the full +378 number in your browser.
Can I call San Marino without downloading an app?
Yes. Ringvoo runs in Chrome, Safari, or Edge and connects to real phone numbers in San Marino — no app install required.
Do I need to drop the leading zero when dialing San Marino?
When using the international format (+378), omit any leading 0 from the local number. Ringvoo accepts E.164 numbers directly.