Grupo Masmovil, a leading Spanish telecommunications operator, has successfully implemented ClickHouse to improve monitoring solutions for Radio Access Networks (RAN). The company migrated from Telecom-specific tools to open source technologies like ClickHouse, which enabled them to achieve significant improvements in data processing times, storage efficiency, and cost savings. By using ClickHouse's powerful SQL capabilities and real-time query performance, Masmovil has transformed its approach to monitoring RAN networks, resulting in more reliable solutions, faster results, and increased data retention.