What you need to know AT&T will move its 5G mobile network to the Microsoft cloud. This is a path for Microsoft Azure to manage all of AT&T's 5G traffic. Microsoft will acquire AT&T's Network Cloud technology as well as its engineering team. Microsoft announced that AT&T will run its mobility network on Microsoft's Azure for Operators cloud. Starting with the 5G core, AT&T will bring its current and future workloads to the Azure cloud. The 5G core is responsible for linking connected devices to the internet and other services on the network. The press release claims that AT&T will be able to increase productivity and cost-efficiency so it can focus on delivering new services to meet the evolving needs of its customers.