San Marino flag SM

How to Call San Marino from the United States

Country code +378 — Dial 011 378 66 XX XX XX from a US landline or +378 66 XX XX XX from a mobile phone.

+378
San Marino Country Code

What to Dial

  1. 1Dial 011 from a US landline, or + from a mobile (hold the 0 key).
  2. 2Dial 378, the country code of San Marino.
  3. 3Dial the number: 8 digits for mobiles and 10 for landlines, exactly as written: San Marino has no leading 0 to drop.
Calling a… Written in San Marino From a US landline From a cell phone
Mobile 66 XX XX XX 011 378 66 XX XX XX +378 66 XX XX XX
Landline 0549 XXXXXX 011 378 0549 XXXXXX +378 0549 XXXXXX

X stands for any digit. Mobile numbers start with 61 or 66. More number types: San Marino phone number format.

Mobile or Landline?

San Marino had 120 mobile subscriptions and 46.9 landlines per 100 people in 2022. Landlines are still common, which matters because many US plans charge different rates for landlines and mobiles.

Source: World Bank (ITU).

Calling Tips for San Marino

Best Time to Call

To reach someone between 9 AM and 8 PM in San Marino, call between 3:00 AM–2:00 PM EST (12:00 AM–11:00 AM PST). San Marino changes its clocks for daylight saving time.

San Marino is on UTC+1, 6 hours ahead of US Eastern Time right now.

Cost Saving Tips

  • VoIP services such as Google Voice or Vonage usually charge less per minute than a carrier's standard international rate.
  • WiFi calling apps (WhatsApp, Viber, FaceTime) are free when both parties have the app.
  • Check your carrier's international plan — many offer add-on packages.

Time Difference

US Eastern (EST)
--:--
UTC-5
+6h
San Marino
--:--
UTC+1

Frequently Asked Questions

How do I call San Marino from the US?
From a US landline, dial 011, then 378, then the number: 011 378 66 XX XX XX for a mobile. From a cell phone, dial +378 66 XX XX XX.
Do I need to drop a 0 when calling San Marino?
No. San Marino has no trunk prefix: dial every digit after +378 exactly as written, for example +378 66 XX XX XX.
How many digits is a phone number in San Marino?
8 digits for mobiles and 10 for landlines after the country code +378. Mobile numbers start with 61 or 66.
What time should I call San Marino from the US?
San Marino is 6 hours ahead of New York (UTC+1 in San Marino). To reach someone between 9 AM and 8 PM there, call between 3:00 AM–2:00 PM EST, or 12:00 AM–11:00 AM PST on the West Coast. San Marino uses daylight saving time, so the difference changes during the year.
How do people in San Marino call the US?
They dial the exit code 00, then 1 and the 10-digit US number: 00 1 XXX XXX XXXX, or +1 from a mobile.
How much does it cost to call San Marino?
It depends on your plan: many US plans charge per minute for international calls, and calls to San Marino mobiles often cost more than calls to landlines. Internet calling apps are free when both people have the same app.
San Marino Quick Info
Country Code +378
ISO Code SM
Capital San Marino
Time Zone UTC+1
Exit Code (US) 011
Full Country Profile
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