Cheap Calls to San Marino from $0.15/min
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Example numbers for San Marino:
Your local time
—:—
Time in San Marino
—:—
Code
+378
ISO
SM
Region
Europe
Time zone
Europe/San Marino
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Anatomy of a San Marino phone number
Every San Marino number in international format follows this shape — colour-coded so you can see where the country code ends and the local number begins.
When dialing San Marino from abroad, the only fixed part is +378 — that's the country code. The rest depends on whether you're calling a mobile or landline number inside San Marino.
Mobile example
+XXX XX XX XX XX
Dial the country code +378, then the full mobile number.
Example: +378 66 66 12 12
Landline example
+378 XX XXXX XXX
Include the area code if applicable. Omit any leading 0.
How to dial San Marino (+378)
Enter the country code +378 when dialing San Marino from abroad.
Add the local phone number (in most countries, drop the leading zero).
Use TwinPhone to connect the call at low per-minute rates.
The +378 country code, explained
San Marino's international country code is +378. It was assigned by the International Telecommunication Union under recommendation E.164 and is the dialing prefix at the start of every San Marino phone number written in international format.
You'll often see +378 referred to in search as the "378 area code". Strictly speaking, +378 is a country code — area codes are sub-national, used inside San Marino. The practical meaning is the same: any number starting with +378 or 00378 is a San Marino number.
TwinPhone routes calls to every +378 number directly from your browser — no app, no SIM card, no calling card. Type +378 followed by the local number, press call, and you're connected.
San Marino at a glance
Country codes near +378
Dialing codes immediately above and below +378 in the ITU plan — handy if you mistyped a digit or are dialing across a region.
San Marino Calling Rates
Landline
$0.15
per minute
Mobile
$0.69
per minute
- No credit card to start
- Pay as you go — minimum $10
- Per-minute billing in 60-second increments
- No contracts, cancel anytime
- Encrypted & private calls
- Works on any device & browser
Frequently asked questions
Everything you need to know about TwinPhone.
The country code (international dialing code) for San Marino is +378. To call San Marino from abroad, dial +378 followed by the national number (in most countries, without its leading zero).
+378 is San Marino's international country calling code under the ITU E.164 plan — often searched as the "378 area code". Any phone number starting with +378 is a San Marino number.
From TwinPhone, just type +378 and the number — we connect it. From a landline, dial your exit code, then +378, then the number (in most countries, without the leading 0).
San Marino's current local time is shown live on this page. Check it before calling so you reach people during waking hours.
No. TwinPhone works directly in your browser — Chrome, Edge, Safari, or Brave. Open the site, add credit, dial +378 and your number, done. No installs, no plugins, no SIM card required.
Yes — we currently rent virtual numbers in the US and Canada, from $3.19/month. Use one as your caller ID so callers see a North American number, or receive incoming calls directly in your browser. Numbers for more countries are on the way.
Every call uses industry-standard transport encryption (TLS + SRTP). We don't sell your data or share your call history. We don't record personal calls (business teams can opt in their own calls).
TwinPhone uses adaptive audio technology that adjusts to your connection quality. Even on slow or unstable Wi-Fi — airport, hotel, coffee shop — your call stays connected and audible.
Calls to San Marino landlines start at just $0.15/min and mobile at $0.69/min. No connection fees, no hidden charges. Billed per minute in 60-second increments (rounded up to the next minute).
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