Method for managing lists stored in a mobile telephone includes automatically storing telephone numbers of incoming and outgoing calls in a first or second list. The first list is accessible to any use, the second list contains code protected telephone numbers. A telephone number stored in a temporary register is verified to whether it's contained within the second list. Method includes limiting a user's access to only telephone numbers in first list until a code is input by user. After inputting code, telephone numbers in first and second lists are accessible by user. Both first and second lists are stored in mobile phone, and telephone numbers associated with second list are not stored in first list, and second list is at least one of accessible and displayable only after inputting code.