The high penetration of mobile phones amongst the South African population presents mobile phones as an attractive interactive marketing communication medium. This paper argues that the access and actual use of different phone device features can be productively used as a segmentation approach, which may enable marketers to be more effective in planning interactive marketing communication plans. This study, based on 330 students, developed segments derived from mobile phone usage patterns using cluster analysis. The outcome revealed four clusters that were named: Connectors, Conventionalists, Technoisseurs and Mobilarti. Connectors made daily use of a full range of communication functions. Conventionalists were inclined to limit their use of mobile phone features to talking and texting. Technoisseurs were found to use a whole range of sophisticated mobile phone facilities. Mobilarti were identified as a group of expert users; using the full range of functions available to them on their phones, despite recording the lowest percentage of smartphone ownership when compared to the other groups. These groups were further profiled by analysing attitudinal and behavioural variables pertaining to two newly developed postmodern dimensions, which were introduced in the study as mobile importance as an attitudinal aspect, and social transformation as a behavioural outcome. For marketers, an understanding of the proposed segments, as well as the differences in attitudes towards mobile importance and social transformation behaviours, coupled with typical financial and social realities of these segments, allow targeting strategies that are more clearly actionable.