What the international code for Bolivia to call? Dial code number to open phone call in Bolivia is ( 00591 ) or ( +591 ) in order to make international phone calls between Bolivia and all countries of the world to unlock phone with more additional details and informations about Bolivia country whereby each country is distinguished by a special telephone number, where the caller write the Plurinational State of Bolivia dial area code to opening sim card telephone line mobile or landline then the phone number.