What the international code for Saint Lucia to call? Dial code number to open phone call in Saint Lucia is ( 001758 ) or ( +1758 ) in order to make international phone calls between Saint Lucia and all countries of the world to unlock phone with more additional details and informations about Saint Lucia country whereby each country is distinguished by a special telephone number, where the caller write the Saint Lucia dial area code to opening sim card telephone line mobile or landline then the phone number.