AWS SDK Version 3 for .NET
API Reference

AWS services or capabilities described in AWS Documentation may vary by region/location. Click Getting Started with Amazon AWS to see specific differences applicable to the China (Beijing) Region.

Describes one or more of the Availability Zones that are available to you. The results include zones only for the region you're currently using. If there is an event impacting an Availability Zone, you can use this request to view the state and any provided message for that Availability Zone.

For more information, see Regions and Availability Zones in the Amazon Elastic Compute Cloud User Guide.


For .NET Core and PCL this operation is only available in asynchronous form. Please refer to DescribeAvailabilityZonesAsync.

Namespace: Amazon.EC2
Assembly: AWSSDK.EC2.dll
Version: 3.x.y.z


public virtual DescribeAvailabilityZonesResponse DescribeAvailabilityZones(
         DescribeAvailabilityZonesRequest request
Type: Amazon.EC2.Model.DescribeAvailabilityZonesRequest

Container for the necessary parameters to execute the DescribeAvailabilityZones service method.

Return Value
The response from the DescribeAvailabilityZones service method, as returned by EC2.


This example describes the Availability Zones that are available to you. The response includes Availability Zones only for the current region.

To describe your Availability Zones

var response = client.DescribeAvailabilityZones(new DescribeAvailabilityZonesRequest 

List availabilityZones = response.AvailabilityZones;


Version Information

.NET Framework:
Supported in: 4.5, 4.0, 3.5

Portable Class Library:
Supported in: Windows Store Apps
Supported in: Windows Phone 8.1
Supported in: Xamarin Android
Supported in: Xamarin iOS (Unified)
Supported in: Xamarin.Forms

See Also