AWS SDK Version 3 for .NET
API Reference

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Container for the parameters to the ReleaseAddress operation. Releases the specified Elastic IP address.

[Default VPC] Releasing an Elastic IP address automatically disassociates it from any instance that it's associated with. To disassociate an Elastic IP address without releasing it, use DisassociateAddress.

[Nondefault VPC] You must use DisassociateAddress to disassociate the Elastic IP address before you can release it. Otherwise, Amazon EC2 returns an error (InvalidIPAddress.InUse).

After releasing an Elastic IP address, it is released to the IP address pool. Be sure to update your DNS records and any servers or devices that communicate with the address. If you attempt to release an Elastic IP address that you already released, you'll get an AuthFailure error if the address is already allocated to another Amazon Web Services account.

After you release an Elastic IP address, you might be able to recover it. For more information, see AllocateAddress.

Inheritance Hierarchy


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


public class ReleaseAddressRequest : AmazonEC2Request

The ReleaseAddressRequest type exposes the following members


Public Method ReleaseAddressRequest()

Empty constructor used to set properties independently even when a simple constructor is available

Public Method ReleaseAddressRequest(string)

Instantiates ReleaseAddressRequest with the parameterized properties


Public Property AllocationId System.String

Gets and sets the property AllocationId.

The allocation ID. This parameter is required.

Public Property NetworkBorderGroup System.String

Gets and sets the property NetworkBorderGroup.

The set of Availability Zones, Local Zones, or Wavelength Zones from which Amazon Web Services advertises IP addresses.

If you provide an incorrect network border group, you receive an InvalidAddress.NotFound error.

Public Property PublicIp System.String

Gets and sets the property PublicIp.



This example releases the specified Elastic IP address.

To release an Elastic IP address

var client = new AmazonEC2Client();
var response = client.ReleaseAddress(new ReleaseAddressRequest 
    AllocationId = "eipalloc-64d5890a"


Version Information

Supported in: 8.0 and newer, Core 3.1

.NET Standard:
Supported in: 2.0

.NET Framework:
Supported in: 4.5 and newer, 3.5