Big Data is a valuable strategic lever for telecom operators to reverse revenue decline. By leveraging customer insights, Telcos can capture, analyze, and monetize vast amounts of customer information and interaction data. This provides them with a unique advantage to improve their core business and offer more targeted products and services. Arthur D. Little provides perspectives on the most critical issues facing Telcos seeking to harness the potential of Big Data, including strategic considerations, best practice use cases, required operating models and capabilities, and how to put Big Data initiatives into action to build differentiating capabilities.