San Marino numbers
San Marino's international dial code is +378. This page gathers what we've published about this country's numbers — no names, no uploaders, no reporters. Just numbering-plan facts and aggregate counts.
Dialing information
- International calling code
- +378
- Dialing from abroad
- +378 66 66 12 12
- Dialing locally
- 66 66 12 12
- Domestic trunk prefix
- No trunk prefix
- International call prefix
- 00
- National number length
- 8–10 digits
- Mobile number length
- 8 digits
- Fixed-line number length
- 10 digits
Number formats by line type
- Mobile
- +378 6X XX XX XX
- Landline
- +378 0XXX XXXXXX
- VoIP
- +378 5X XX XX XX
- Premium rate
- +378 7X XX XX XX
Top prefixes
Mobile · Original allocation: TELENET
Mobile · Original allocation: Telecom Italia San Marino
Recently indexed numbers
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Frequently asked questions
Who allocates San Marino's numbers?
The +378 dial code and each prefix's carrier come from this country's officially published numbering plan — not from user-uploaded data.
How many indexed numbers do we have in San Marino?
0 indexed numbers, and 0 spam numbers — names themselves are never published, only the counts.
How do I call San Marino from abroad?
San Marino's international dial code is +378. From outside the country, dial the number in its international format, like +378 66 66 12 12.
How many digits does a phone number in San Marino have?
National number length in San Marino: 8–10 digits — after the domestic trunk prefix, if any.