A method and apparatus for supporting social network analysis of terminal users in a communication network. Users being located relatively close to each other when making calls are more likely to be socially “connected” than users having mutually more remote locations. A partitioning unit (100) determines a representative geographical location for individual users based on traffic data and location data (102,104). User partitions are then made based on the users' representative geographical locations such that one particular user partition contains users having representative geographical locations within a limited geographical area. The user partition is then provided to a social network analysis function (106) for further analysis (108).