The international dialling code for Turkiye is +90. IDD is widely available. The outgoing international code is: 00. To phone from PTT telephone booths, which are found in all areas, telephone cards and tokens are used. Local, inter-city and international calls can be made from all PTT offices. Mobile phones work across 99.9 % of the country and there are internet cafes in all cities. The average time for a letter to arrive the US is 7 to 10 days.