Every number type in San Marino with real format examples: how numbers are written domestically, how to dial them from abroad, and the E.164 form your systems should store.
Right now in San Marino
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Country code
+378
Trunk prefix
none
Intl. call prefix
00
Mobile digits
8
Number formats by type
Examples from the official numbering plan metadata. The E.164 column is the normalized form for databases and APIs.
Type
Domestic (national)
From abroad
E.164
Digits
Landline
0549 886377
+378 0549 886377
+3780549886377
10
Mobile
66 66 12 12
+378 66 66 12 12
+37866661212
8
Premium rate
71 12 34 56
+378 71 12 34 56
+37871123456
8
VoIP
58 00 11 10
+378 58 00 11 10
+37858001110
8
How to call San Marino
From abroad: dial +378 (or your country's exit code, e.g. 00 from Europe, 011 from North America), then the national number. Example: +378 66 66 12 12
Within San Marino: dial the number as written domestically. Example: 66 66 12 12
Calling abroad from San Marino: the international prefix is 00, or simply use + on mobiles.
Storing numbers in software: always store E.164 (+37866661212): unambiguous, sortable, and what SMS and telephony APIs expect.
Exact dial sequence from your country
Pick where you are calling from and get the digit-for-digit sequence for a San Marino number, with your country's exit code instead of the generic +.
Dial exactly
Frequently Asked Questions
What is the phone number format in San Marino?
Numbers in San Marino use country code +378. A mobile number looks like 66 66 12 12 domestically, or +378 66 66 12 12 in international format (E.164: +37866661212). Mobile numbers have 8 national digits.
How do I call San Marino from abroad?
Dial your country's international prefix (or +), then 378, then the national number. Example: +378 66 66 12 12.
What is the country calling code for San Marino?
The country calling code for San Marino is +378. To call abroad from San Marino, the international prefix is 00 (or use +).
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