The international dialing code for Sao Tome And Principe is +239. To call Sao Tome And Principe from the United States or Canada, dial 011 + 239 + area code + local number. From Europe, dial 00 + 239 + area code + local number. On mobile phones worldwide, use +239 followed by the area code and local number.
From USA/Canada: 011 + 239 + local number. From UK/Europe: 00 + 239 + local number. From mobile phones: +239 + local number.
Country calling codes are standardized by the International Telecommunication Union (ITU). The Sao Tome And Principe country code +239 is used to route international telephone calls to Sao Tome And Principe from any country in the world.