In late June 2022, we rolled out a new KMS DNS, azkms.core.windows.net, to improve Azure Windows activation experience in Azure Global Cloud. Specifically, all Azure Windows VMs provisioned in Azure Global Cloud from July 2022, are activated via azkms.core.windows.net; and most Azure Windows VMs provisioned in Azure Global Cloud before July 2022 remain activated via existing KMS DNS, kms.core.windows.net.

See more details: https://azure.microsoft.com/en-us/updates/new-kms-dns-in-azure-global-cloud/