What the international code for Nepal to call? Dial code number to open phone call in Nepal is ( 00977 ) or ( +977 ) in order to make international phone calls between Nepal and all countries of the world to unlock phone with more additional details and informations about Nepal country whereby each country is distinguished by a special telephone number, where the caller write the Federal Democratic Republic of Nepal dial area code to opening sim card telephone line mobile or landline then the phone number.