Proceedings of 4th Global Business and Finance Research Conference 25 - 27 May 2015, Marriott Hotel, Melbourne, Australia ISBN: 978-1-922069-76-4 Mobile Operators’ Marketing Strategies towards Current and New Customers: An Analysis over Turkey’s Mobile Operators Ayşe Nazlıhan Coşkun* The cost of acquiring a new customer is six to seven times higher than maintaining an existing customer. On one hand, the new customer costs include cost of advertising, price sensitivity, cost associated with explaining the brand and potential inefficiency in dealing with new customers, on the other hand, the satisfied current customers generate substantial profits for the company. Although this is the case, the mobile operator brands in Turkey insist on investing more for their potential customers and have a tendency to ignore the points which pave the path for customer satisfaction. Information Technologies and Communication Institution (BTK) made it possible to switch between mobile operators in 2008 and for approximately six years this has led to a scene for the unsatisfied customers rebranding in unprecedented amounts which cannot be underestimated. This article aims to present the marketing strategies of Turkcell, Vodafone and Avea which are three leading brands of GSM industry in Turkey. Furthermore, the number porting data from Information Technologies and Communication Institution’s annual reports in a six year span are put under the scope. In conclusion, implications for practice are offered for a more stable state in the market with more satisfied customers in the long term. Field of Research: Marketing (Marketing Strategy, Buyer Behavior, Marketing Case Studies) ___________________ * Asst. Prof. Ayşe Nazlıhan Coşkun, Public Relations and Advertising Department Okan University, Istanbul, Turkey, E-mail: nazlihan.coskun@okan.edu.tr