What the international code for Equatorial Guinea to call? Dial code number to open phone call in Equatorial Guinea is ( 00240 ) or ( +240 ) in order to make international phone calls between Equatorial Guinea and all countries of the world to unlock phone with more additional details and informations about Equatorial Guinea country whereby each country is distinguished by a special telephone number, where the caller write the Republic of Equatorial Guinea dial area code to opening sim card telephone line mobile or landline then the phone number.