# DeleteDBSubnetGroup


Deletes a DB subnet group.

**Note**  
The specified database subnet group must not be associated with any DB instances.

## Request Parameters


 For information about the parameters that are common to all actions, see [Common Parameters](CommonParameters.md).

 ** DBSubnetGroupName **   
The name of the database subnet group to delete.  
You can't delete the default subnet group.
Constraints:  
Constraints: Must match the name of an existing DBSubnetGroup. Must not be default.  
Example: `mySubnetgroup`   
Type: String  
Required: Yes

## Errors


For information about the errors that are common to all actions, see [Common Error Types](CommonErrors.md).

 ** DBSubnetGroupNotFoundFault **   
 *DBSubnetGroupName* does not refer to an existing DB subnet group.  
HTTP Status Code: 404

 ** InvalidDBSubnetGroupStateFault **   
The DB subnet group cannot be deleted because it is in use.  
HTTP Status Code: 400

 ** InvalidDBSubnetStateFault **   
The DB subnet is not in the *available* state.  
HTTP Status Code: 400

## See Also


For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS Command Line Interface V2](https://docs.aws.amazon.com/goto/cli2/neptune-2014-10-31/DeleteDBSubnetGroup) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/neptune-2014-10-31/DeleteDBSubnetGroup) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/neptune-2014-10-31/DeleteDBSubnetGroup) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/neptune-2014-10-31/DeleteDBSubnetGroup) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/neptune-2014-10-31/DeleteDBSubnetGroup) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/neptune-2014-10-31/DeleteDBSubnetGroup) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/neptune-2014-10-31/DeleteDBSubnetGroup) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/neptune-2014-10-31/DeleteDBSubnetGroup) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/neptune-2014-10-31/DeleteDBSubnetGroup) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/neptune-2014-10-31/DeleteDBSubnetGroup)