Network & carriers
San Marino's telecom market operates through close integration with Italian networks, alongside the state-run Telecom Italia San Marino.
+378 · SM · UTC+1
San Marino
Country Code & Virtual Numbers
San Marino's +378 code covers one of the world's oldest republics, a small enclave entirely surrounded by Italy. Capital: San Marino City · Business hours: 3:00 AM–11:00 AM EST.
// The Basics
What is the +378 country code?
San Marino's international dialing code is assigned by the ITU (International Telecommunication Union) and used for every call placed from outside the country.
Numbering format
San Marino numbers are typically dialed similarly to neighboring Italian numbers, given the country's small enclave location within Italy.
Calling culture
Business culture in San Marino closely mirrors that of neighboring Italy — relationship-building and personal connection matter alongside professionalism.
Did you know
San Marino, one of the world's oldest republics, is entirely surrounded by Italy, which shapes much of its telecom infrastructure and business culture.
// Quick Facts
A quick read on San Marino numbers.
San Marino numbers are closely integrated with neighboring Italian numbering conventions, given the country's enclave location. Rozper stores and dials contacts in full E.164 format automatically, so you never have to think about the formatting.
Want to call San Marino from abroad? Dial your local exit code, then 378, then the local number.
Best time to call San Marino from the US
San Marino is on UTC+1 · Business hours = – EST · Mon–Fri
// Why a Virtual Number
Why get a San Marino virtual number?
A +378 virtual number gives your business instant local presence in San Marino — without the overhead.
Local caller ID in San Marino
When you call from your virtual San Marino number, contacts see a local +378 number — dramatically improving answer rates.
No office needed
Establish a local presence in San Marino without renting space, hiring locally, or installing any hardware.
Instant credibility
A local +378 number signals genuine presence in this small but distinct enclave nation.
Routes to any device
Calls to your San Marino number ring your team on mobile, desktop, or desk phone — wherever they work.
// Platform Features
Everything to call San Marino
The tools to reach San Marino contacts reliably and scale your international presence globally.
150+ country coverage
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HD voice quality
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Call recording
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Voicemail to text
Voicemails transcribed and delivered by email or SMS. Never miss a message across time zones.
CRM auto-logging
All calls to and from your international number auto-logged in Salesforce, HubSpot, or Zoho.
International analytics
Call volume, answer rates, and duration broken down by country, region, and time of day.
Local Caller ID
Show a local country number as your caller ID when dialling internationally. Improves pickup rates significantly.
Instant provisioning
Activate a new country number in under 60 seconds. No contracts, no hardware, no waiting.
99.99% uptime SLA
Enterprise-grade reliability for your international calling infrastructure, 24/7.
// Get Started
Get a San Marino number today
Active in under ten minutes. No contracts required.
- 01
Sign up
Create your Rozper account in under 2 minutes. No credit card required to start your free trial.
- 02
Get your number
Browse available numbers in your target country and activate instantly.
- 03
Configure routing
Route calls to any device. Set business hours, voicemail, and IVR from your dashboard.
- 04
Start calling globally
Make and receive international calls immediately. Active in under 10 minutes.
// Complete List
All world dial codes by country.
Every country and territory, every international dial code. Click a country to browse it.
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Frequently Asked
San Marino questions answered.
Answers about San Marino's telecom market, Italian-influenced business culture, and getting a local +378 virtual number.
The international dialing code for San Marino is +378. When calling from the US, dial 011 + 378 + the local number. Rozper handles this automatically.
A San Marino virtual number goes live in under 10 minutes. Ask us how.
Start calling San Marino, not tomorrow.
Get a virtual San Marino number or make direct international calls to +378 — active in under ten minutes.