What the international code for Bosnia and Herzegovina to call? Dial code number to open phone call in Bosnia and Herzegovina is ( 00387 ) or ( +387 ) in order to make international phone calls between Bosnia and Herzegovina and all countries of the world to unlock phone with more additional details and informations about Bosnia and Herzegovina country whereby each country is distinguished by a special telephone number, where the caller write the Bosnia and Herzegovina dial area code to opening sim card telephone line mobile or landline then the phone number.