Telephone numbers in San Marino
|Country calling code||+378|
|International call prefix||00|
Telephone numbers in San Marino are 6 to 10 digits long. Numbers starting with either 0, 8 or 9 are assigned to landlines, 6 is used for mobile services, 5 for IP telephony services and 7 for premium numbers. No trunk prefixes are used: all the digits are always dialed.
Until 1996, San Marino was part of the Italian telephone numbering plan, using the Italian area code 0549. However, in that year, it adopted its own country code +378, although dialing arrangements between San Marino and Italy continued as before. In 1998, as Italy switched to a closed dialing plan, San Marino incorporated the 0549 area code into its subscribers' numbers.
The following numbers are equivalent:
- "0549 xxx xxx": from Italy
- "+378 xxx xxx": from rest of the world
- "+39 0549 xxx xxx": from rest of the world, using the Italian country code
- "+378 0549 xxx xxx": from rest of the world, using the San Marino country code and the Italian area code
- "National Numbering Plans : San Marino" (PDF). ITU. Retrieved 1 April 2017.
- "List of ITU-T recommendation E.164 - assigned country codes" (PDF). International Telecommunication Union. p. 5. Retrieved 1 April 2017.
- The Bank Directory, Part 4, Accuity, 2008, page 3574
- "International Numbering Resources Database - San Marino". International Telecommunication Union. Retrieved 1 April 2017.
- Birnbaum's Europe, HarperCollins Canada, Limited, 1995, page 101
- Using C-Kermit, Frank da Cruz, Christine Gianone, Elsevier Science, 1996, page 110
- "Dopo nove giorni di cielo e acqua": storia, storie e luoghi in mezzo secolo di emigrazione sammarinese negli Stati Uniti, Roberto Venturini Edizioni del Titano, 1999, page 4
- Blue Book, IXth Plenary Assembly, Melbourne, 14–25 November 1988, Volume 2, Issue 2, International Telegraph and Telephone Consultative Committee, International Telecommunication Union, 1989 page 132
- La storia delle telecomunicazioni a San Marino, La Tribuna Sammarinese, 7 March 2010
- San Marino Phone Codes, quackr, 7 January 2022