What the international code for Curacao to call? Dial code number to open phone call in Curacao is ( 00599 ) or ( +599 ) in order to make international phone calls between Curacao and all countries of the world to unlock phone with more additional details and informations about Curacao country whereby each country is distinguished by a special telephone number, where the caller write the Curaçao dial area code to opening sim card telephone line mobile or landline then the phone number.