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Virtual Private Cloud:DeletePublicIpAddressPoolCidrBlock

Last Updated:Dec 02, 2023

Deletes a CIDR block from an IP address pool.

Operation Description

Before you call this operation, take note of the following items:

  • Before you delete a CIDR block, make sure that it is not being used.

  • DeletePublicIpAddressPoolCidrBlock is an asynchronous operation. After a request is sent, the system returns a request ID and runs the task in the background. You can call the ListPublicIpAddressPoolCidrBlocks operation to query the status of the task.

    • If the CIDR block is in the Deleting state, the CIDR block is being deleted. In this state, you can only query the CIDR block and cannot perform other operations.
    • If you cannot query the CIDR block, the CIDR block is deleted.
  • You cannot repeatedly call the DeletePublicIpAddressPoolCidrBlock operation to delete a CIDR block within the specified period of time.


You can run this interface directly in OpenAPI Explorer, saving you the trouble of calculating signatures. After running successfully, OpenAPI Explorer can automatically generate SDK code samples.


Authorization information

The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

  • Operation: the value that you can use in the Action element to specify the operation on a resource.
  • Access level: the access level of each operation. The levels are read, write, and list.
  • Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
    • The required resource types are displayed in bold characters.
    • If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
  • Condition Key: the condition key that is defined by the cloud service.
  • Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.
OperationAccess levelResource typeCondition keyAssociated operation
  • PublicIpAddressPool

Request parameters


The ID of the IP address pool.


The CIDR block.


The client token that is used to ensure the idempotence of the request.

You can use the client to generate the token, but you must make sure that the token is unique among different requests. The token can contain only ASCII characters.


Specifies whether to perform a dry run, without performing the actual request. Valid values:

  • true: performs only a dry run. The system checks the request for potential issues, including missing parameter values, incorrect request syntax, and service limits. If the request fails the dry run, an error message is returned. If the request passes the dry run, the DryRunOperation error code is returned.
  • false (default): performs a dry run and performs the actual request. If the request passes the dry run, a 2xx HTTP status code is returned and the operation is performed.

The region ID of the IP address pool from which you want to delete a CIDR block.


Response parameters


The response parameters.


The request ID.



Sample success responses


  "RequestId": "4EC47282-1B74-4534-BD0E-403F3EE64CAF"

Error codes

HTTP status codeError codeError messageDescription
400IllegalParam.CidrBlockThe param of CidrBlock [%s] is illegal.The CidrBlock parameter is set to an invalid value.
400IllegalParam.CidrBlockMaskThe param of CidrBlock Mask [%s] is illegal.The subnet mask of the CIDR block is invalid.
400IncorrectStatus.PublicIpAddressPoolThe status of PublicIpAddressPool [%s] is incorrect.-
400ResourceNotFound.PublicIpAddressPoolThe specified resource of PublicIpAddressPool [%s] is not found.The specified public IP address pool does not exist.
400ResourceNotFound.CidrBlockThe specified resource of CidrBlock [%s] is not found.-
400IncorrectStatus.CidrBlockThe status of CidrBlock [%s] is incorrect.-
400ResourceInUse.CidrBlockThe specified resource of CidrBlock [%s] is in use.-
400ResourceInUse.CidrBlockThe specified resource of CidrBlock is in use.-
400OperationDenied.OperateSharedResourceThe operation is not allowed because of the PublicIpAddressPool is a shared resource.The public IP address pool is a shared resource and cannot be modified.

For a list of error codes, visit the Service error codes.

Change history

Change timeSummary of changesOperation
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