Finland, Feb. 19 -- The world's first commercial mobile service on 5G Core SaaS, powered by Nokia and Amazon Web Services (AWS), is now live with Belgium's Citymesh, marking a new era in how telecommunications providers can choose to build and scale their networks.The software-as-a-service model, which transforms core networks and their operations into flexible, subscription-based services, reduces the upfront capital investment and operational complexity of traditional network deployments. It delivers catalog-based service creation, on-demand network capabilities, and rapid feature deployment, with predictable cost control through subscription pricing and pay-as-you-grow infrastructure.Citymesh is using Nokia's Core SaaS for Business, runn...