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Azure services with availability zone support

Azure availability zones are physically separate locations within each Azure region. This article shows you which services support availability zones.

For more information on availability zones and regions, see What are Azure regions and availability zones?,

Azure is continually expanding the number of services that support availability zones, including zonal and zone-redundant offerings.

Types of availability zone support

Azure services can provide two types of availability zone support: zonal and zone-redundant. Each service supports either one or both types. When designing your reliability strategy, make sure that you understand which availability zone types are supported in each service of your workload.

  • Zonal services: A resource can be deployed to a specific, self-selected availability zone to achieve more stringent latency or performance requirements. Resiliency is self-architected by replicating applications and data to one or more zones within the region. Resources are aligned to a selected zone. For example, virtual machines, managed disks, or standard IP addresses can be aligned to a same zone, which allows for increased resiliency by having multiple instances of resources deployed to different zones.

  • Zone-redundant services: Resources are replicated or distributed across zones automatically. For example, zone-redundant services replicate the data across multiple zones so that a failure in one zone doesn't affect the high availability of the data. 

Important

Some services may have limited support for availability zones. For example, some may only support availability zones for certain tiers, regions, or SKUs. To get more information on service limitations for availability zone support, select that service in the table.

Always-available services

Some Azure services don't support availability zones because they are:

  • Available across multiple Azure regions within a geographic area, or even across all Azure regions globally.
  • Resilient to zone-wide outages.
  • Resilient to region-wide outages.

For a complete list of always-available services, also called non-regional services, in Azure, see Products available by region.

For more information on older-generation virtual machines, see Previous generations of virtual machine sizes.

Azure services with availability zone support

The following tables provide a summary of the current offering of zonal, zone-redundant, and always-available Azure services. They list Azure offerings according to the regional availability of each.

Important

To learn more about availability zones support and available services in your region, contact your Microsoft sales or customer representative.

Legend

Legend containing icons and meaning of each with respect to service category and regional availability of each service in the table.

In the Product Catalog, always-available services are listed as "non-regional" services.

Azure offerings are grouped into three categories that reflect their regional availability: foundational, mainstream, and strategic services. Azure's general policy on deploying services into any given region is primarily driven by region type, service category, and customer demand. For more information, see Azure services.

  • Foundational services: Available in all recommended and alternate regions when a region is generally available, or within 90 days of a new foundational service becoming generally available.
  • Mainstream services: Available in all recommended regions within 90 days of a region's general availability. Mainstream services are demand-driven in alternate regions, and many are already deployed into a large subset of alternate regions.
  • Strategic services: Targeted service offerings, often industry-focused or backed by customized hardware. Strategic services are demand-driven for availability across regions, and many are already deployed into a large subset of recommended regions

Important

Some services, although they are zone-redundant, may have limited support for availability zones. For example, some may only support availability zones for certain tiers, regions, or SKUs. To get more information on service limitations for availability zone support, select that service in the following table.

An icon that signifies this service is foundational. Foundational services

*VMs that support availability zones: AV2-series, B-series, DSv2-series, DSv3-series, Dv2-series, Dv3-series, ESv3-series, Ev3-series, F-series, FS-series, FSv2-series, and M-series.*

An icon that signifies this service is mainstream. Mainstream services

Products Resiliency
Azure Application Gateway (V2) An icon that signifies this service is zone redundant. An icon that signifies this service is zonal.
Azure API Management An icon that signifies this service is zone redundant. An icon that signifies this service is zonal
Azure App Configuration An icon that signifies this service is zone redundant.
Azure App Service An icon that signifies this service is zone redundant.
Azure App Service: App Service Environment An icon that signifies this service is zone redundant. An icon that signifies this service is zonal
Azure Backup An icon that signifies this service is zone redundant.
Azure Bastion An icon that signifies this service is zone redundant. An icon that signifies this service is zonal
Azure Batch An icon that signifies this service is zone redundant.
Azure Cache for Redis An icon that signifies this service is zone redundant. An icon that signifies this service is zonal
Azure AI Search An icon that signifies this service is zone redundant.
Azure Container Apps An icon that signifies this service is zone redundant.
Azure Container Instances An icon that signifies this service is zonal
Azure Container Registry An icon that signifies this service is zone redundant.
Azure Data Explorer An icon that signifies this service is zone redundant.
Azure Data Factory An icon that signifies this service is zone redundant.
Azure Database for MySQL – Flexible Server An icon that signifies this service is zone redundant.
Azure Database for PostgreSQL – Flexible Server An icon that signifies this service is zone redundant.
Azure DDoS Protection An icon that signifies this service is zone redundant.
Azure Disk Encryption An icon that signifies this service is zone redundant.
Azure Event Grid An icon that signifies this service is zone-redundant
Azure Firewall An icon that signifies this service is zone redundant. An icon that signifies this service is zonal.
Azure Firewall Manager An icon that signifies this service is zone redundant.
Azure Functions An icon that signifies this service is zone redundant.
Azure HDInsight An icon that signifies this service is zonal
Azure IoT Hub An icon that signifies this service is zone redundant.
Azure Kubernetes Service (AKS) An icon that signifies this service is zone redundant. An icon that signifies this service is zonal
Azure Logic Apps An icon that signifies this service is zone redundant.
Azure Monitor An icon that signifies this service is zone redundant.
Azure Monitor: Application Insights An icon that signifies this service is zone redundant.
Azure Monitor: Log Analytics An icon that signifies this service is zone redundant.
Azure NAT Gateway An icon that signifies this service is zonal
Azure Network Watcher An icon that signifies this service is zone redundant.
Azure Network Watcher: Traffic Analytics An icon that signifies this service is zone redundant.
Azure Notification Hubs An icon that signifies this service is zone redundant.
Azure Private Link An icon that signifies this service is zone redundant.
Azure Route Server An icon that signifies this service is zone redundant.
Azure Stream Analytics An icon that signifies this service is zone redundant.
Microsoft Entra Domain Services An icon that signifies this service is zone redundant.
SQL Server on Azure Virtual Machines An icon that signifies this service is zone redundant.
Azure Storage: Files Storage An icon that signifies this service is zone redundant.
Azure Virtual WAN An icon that signifies this service is zone redundant.
Azure Web Application Firewall An icon that signifies this service is zone redundant.
Power BI Embedded An icon that signifies this service is zone redundant.
Virtual Machines: Azure Dedicated Host An icon that signifies this service is zonal.
Virtual Machines: Ddsv4-Series An icon that signifies this service is zonal.
Virtual Machines: Ddv4-Series An icon that signifies this service is zonal.
Virtual Machines: Dsv4-Series An icon that signifies this service is zonal.
Virtual Machines: Dv4-Series An icon that signifies this service is zonal.
Virtual Machines: Edsv4-Series An icon that signifies this service is zonal.
Virtual Machines: Edv4-Series An icon that signifies this service is zonal.
Virtual Machines: Esv4-Series An icon that signifies this service is zonal.
Virtual Machines: Ev4-Series An icon that signifies this service is zonal.
Virtual Machines: Fsv2-Series An icon that signifies this service is zonal.
Virtual Machines: M-Series An icon that signifies this service is zonal.
Virtual WAN: Azure ExpressRoute An icon that signifies this service is zone redundant.
Virtual WAN: Point-to-site VPN Gateway An icon that signifies this service is zone redundant.
Virtual WAN: Site-to-site VPN Gateway An icon that signifies this service is zone redundant.

An icon that signifies this service is strategic. Strategic services

An icon that signifies this service is non-regional. Non-regional services (always-available services)

Products Resiliency
Microsoft Entra ID An icon that signifies this service is always available.
Microsoft Defender for Identity An icon that signifies this service is always available.
Azure Advisor An icon that signifies this service is always available.
Azure Blueprints An icon that signifies this service is always available.
Azure Bot Services An icon that signifies this service is always available.
Azure Cloud Shell An icon that signifies this service is always available.
Azure Content Delivery Network An icon that signifies this service is always available.
Microsoft Cost Management An icon that signifies this service is always available.
Microsoft Defender for IoT An icon that signifies this service is always available.
Azure DNS An icon that signifies this service is always available.
Azure Front Door An icon that signifies this service is always available.
Azure Information Protection An icon that signifies this service is always available.
Azure Lighthouse An icon that signifies this service is always available.
Azure Managed Applications An icon that signifies this service is always available.
Azure Maps An icon that signifies this service is always available.
Azure Peering Service An icon that signifies this service is always available.
Azure Performance Diagnostics An icon that signifies this service is always available.
Azure Policy An icon that signifies this service is always available.
Azure portal An icon that signifies this service is always available.
Azure Resource Graph An icon that signifies this service is always available.
Azure Stack Edge An icon that signifies this service is always available.
Azure Traffic Manager An icon that signifies this service is always available.
Customer Lockbox for Microsoft Azure An icon that signifies this service is always available.
Microsoft Defender for Cloud An icon that signifies this service is always available.
Microsoft Graph An icon that signifies this service is always available.
Microsoft Intune An icon that signifies this service is always available.
Microsoft Sentinel An icon that signifies this service is always available.

Pricing for virtual machines in availability zones

You can access Azure availability zones by using your Azure subscription. To learn more, see Bandwidth pricing.

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