What the international code for Puerto Rico to call? Dial code number to open phone call in Puerto Rico is ( 001 ) or ( +1 ) in order to make international phone calls between Puerto Rico and all countries of the world to unlock phone with more additional details and informations about Puerto Rico country whereby each country is distinguished by a special telephone number, where the caller write the Commonwealth of Puerto Rico dial area code to opening sim card telephone line mobile or landline then the phone number.