Abstract: To increase the accuracy of identification of nuisance calls, a list generation device acquires, as input data, at least one of information included in second history information and an evaluation value stored in a user evaluation database. The list generation device calculates a nuisance level for a telephone numbers of each caller based on a factor determined by the acquired input data. The list generation device compares the calculated nuisance level with threshold to generate shared list including the telephone number of the caller who makes an incoming call identified as a nuisance call.

Abstract: To increase the accuracy of identification of nuisance calls, a list generation device acquires, as input data, at least one of information included in second history information and an evaluation value stored in a user evaluation database. The list generation device calculates a nuisance level for a telephone numbers of each caller based on a factor determined by the acquired input data. The list generation device compares the calculated nuisance level with threshold to generate shared list including the telephone number of the caller who makes an incoming call identified as a nuisance call.