Disassociates a CIDR block from a subnet. Currently, you can disassociate an IPv6 CIDR block only. You must detach or delete all gateways and resources that are associated with the CIDR block before you can disassociate it.
post/#Action=DisassociateSubnetCidrBlock
Query parameters
Action'DisassociateSubnetCidrBlock' required
Version'2016-11-15' required
Response
Success