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?
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.
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.
Free tools
Look up a number from San Marino
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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.
Dial 011 (the US exit code), then 378, then the national number, leaving out any domestic trunk prefix (such as a leading 0).
Start calling San Marino, not tomorrow.
Get a virtual San Marino number or make direct international calls to +378 — active in under ten minutes.