Hello, as per the below Microsoft document, regional pairs for Switzerland geography are Switzerland North and Switzerland West*. It indicates that certain regions (including Switzerland West) are access restricted to support specific customer scenarios, such as in-country disaster recovery. These regions are available only upon request by creating a new support request in the Azure portal. https://learn.microsoft.com/en-us/azure/availability-zones/cross-region-replication-azure
So you may open a Microsoft ticket to check the availability: https://portal.azure.com/#blade/Microsoft_Azure_Support/HelpAndSupportBlade/newsupportrequest
All the Azure availability information/SLAs can be found at: https://azure.microsoft.com/en-us/support/legal/sla/
Please search and click on the service to get the availability information. For example, when you click Azure Kubernetes Services, you will find that "For customers who have purchased an Azure Kubernetes Service (AKS) Uptime SLA, we guarantee uptime of 99.95% for the Kubernetes API Server for AKS Clusters that use Azure Availability Zones and 99.9% for AKS Clusters that do not use Azure Availability Zones."