Supported by UNFPA Maldives and the National Bureau of Statistics, this project aimed to use Big Data to illuminate demographic features with significant implications for development policies and programs. Specifically, our partners at Fundazione Bruno Kessler (FBK) developed a prototype to analyze population density and movement patterns by leveraging call detail records (CDRs) and new data analytic techniques. The prototype utilized the temporal dynamics derived from mobile data while preserving the anonymity of mobile users.