# VpcCidrBlockAssociation
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Describes an IPv4 CIDR block associated with a VPC.

## Contents
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 ** associationId **   
The association ID for the IPv4 CIDR block.  
Type: String  
Required: No

 ** cidrBlock **   
The IPv4 CIDR block.  
Type: String  
Required: No

 ** cidrBlockState **   
Information about the state of the CIDR block.  
Type: [VpcCidrBlockState](API_VpcCidrBlockState.md) object  
Required: No

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/ec2-2016-11-15/VpcCidrBlockAssociation) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/ec2-2016-11-15/VpcCidrBlockAssociation) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/ec2-2016-11-15/VpcCidrBlockAssociation)