What the international code for Isle of Man to call? Dial code number to open phone call in Isle of Man is ( 000 ) or ( +0 ) in order to make international phone calls between Isle of Man and all countries of the world to unlock phone with more additional details and informations about Isle of Man country whereby each country is distinguished by a special telephone number, where the caller write the Isle of Man dial area code to opening sim card telephone line mobile or landline then the phone number.