What the international code for Andorra to call? Dial code number to open phone call in Andorra is ( 00376 ) or ( +376 ) in order to make international phone calls between Andorra and all countries of the world to unlock phone with more additional details and informations about Andorra country whereby each country is distinguished by a special telephone number, where the caller write the Principality of Andorra dial area code to opening sim card telephone line mobile or landline then the phone number.