Determining the importance of the factors affectingthe selection of the mobile operator

The competition of mobile service providers in the telecommunications sector with each other is increasing day by day. With the great changes in technology in recent years, this competition has increased considerably. Companies that want to survive in this environment should act by takinginto account the preferences and wishes of their customers. In this study, it is aimed to determine the importance levels of the factors affecting the operator preference of the consumers, the importance levels of these factors in creating customer satisfaction and loyalty, and the mass customization levels of the operators. In this context, factors such as price, service quality, brand image, technological infrastructure, advertising, mass customization, use in the immediate environment, and extra services were examined. In the results of working; It was concluded that brand image, technological infrastructure, service quality and mass customization level, which are among the factors that affect operator preference, are of higher importance in terms of importance. Keywords: Mass Customization, Customer Satisfaction, Customer Loyalty, Telecommunications