What the international code for Taiwan to call? Dial code number to open phone call in Taiwan is ( 00886 ) or ( +886 ) in order to make international phone calls between Taiwan and all countries of the world to unlock phone with more additional details and informations about Taiwan country whereby each country is distinguished by a special telephone number, where the caller write the Taiwan, Province of China dial area code to opening sim card telephone line mobile or landline then the phone number.