name : disassociate-vpc-cidr-block.rst **To disassociate an IPv6 CIDR block from a VPC** This example disassociates an IPv6 CIDR block from a VPC using the association ID for the CIDR block. Command:: aws ec2 disassociate-vpc-cidr-block --association-id vpc-cidr-assoc-eca54085 Output:: { "Ipv6CidrBlockAssociation": { "Ipv6CidrBlock": "2001:db8:1234:1a00::/56", "AssociationId": "vpc-cidr-assoc-eca54085", "Ipv6CidrBlockState": { "State": "disassociating" } }, "VpcId": "vpc-a034d6c4" } **To disassociate an IPv4 CIDR block from a VPC** This example disassociates an IPv4 CIDR block from a VPC. Command:: aws ec2 disassociate-vpc-cidr-block --association-id vpc-cidr-assoc-0287ac6b Output:: { "CidrBlockAssociation": { "AssociationId": "vpc-cidr-assoc-0287ac6b", "CidrBlock": "172.18.0.0/16", "CidrBlockState": { "State": "disassociating" } }, "VpcId": "vpc-27621243" }