What the international code for Saint Vincent and the Grenadines to call? Dial code number to open phone call in Saint Vincent and the Grenadines is ( 001784 ) or ( +1784 ) in order to make international phone calls between Saint Vincent and the Grenadines and all countries of the world to unlock phone with more additional details and informations about Saint Vincent and the Grenadines country whereby each country is distinguished by a special telephone number, where the caller write the Saint Vincent and the Grenadines dial area code to opening sim card telephone line mobile or landline then the phone number.