This report provides an overview of the opportunities, limitations, and risks of using call detail record (CDR) data for monitoring human mobility and displacement. CDR presents a potentially valuable opportunity for humanitarian actors and stakeholders interested in the pursuit of mobility and displacement monitoring to expand upon their existing methods.

This report sought to address the question: to what extent is CDR use ethically permissible and practically feasible in shaping humanitarian response in diverse displacement contexts, by enabling better analysis of mobility?