This white paper explores how AI-powered service assurance is reshaping telecom operations by embedding automation, analytics, and agentic intelligence into the core of assurance workflows. It highlights a shift from siloed tools and manual diagnostics to integrated systems that can monitor, adapt, and respond in real time. Through practical examples, it demonstrates how operators can accelerate fault resolution, reduce operational effort, and maintain service health across hybrid and evolving network environments, all while building a foundation for more resilient, intelligent operations.