Effects of Mobile Number Portability: Case of Turkey
Birgul Kutlu

Abstract
In today's competitive telecommunications environment, a service provider should be able to prepare for changes in customer needs, regulation and technology. The most recent technological change in GSM environment is the Mobile Number Portability (MNP). The aim of this study is to identify and model the factors affecting MNP in Turkey. The questionnaire is developed based on previous researches and is modified according to a pilot study applied to five end-users. It is administered to a total of 1275 Internet users and 1250 usable data are collected. Reliability analysis (Cronbach's alpha) is applied to test internal consistency of the questionnaire. Regression analysis results indicate that overall model is statistically significant, where the factors affecting MNP are age, contract type, operator type, and satisfaction level. This study shows that the specified model can be used by managers of telecommunications service providers in order not to be affected by MNP.

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