aws ec2 create-subnet-cidr-reservation
Creates a subnet CIDR reservation. AWS CLI reference
6 options Its page in the AWS CLI reference
Options
--cidrThe IPv4 or IPV6 CIDR range to reserve.--descriptionThe description to assign to the subnet CIDR reservation.--dry-runChecks whether you have the required permissions for the action, without actually making the request, and provides an error response.--reservation-typeThe type of reservation.--subnet-idThe ID of the subnet.--tag-specificationsThe tags to assign to the subnet CIDR reservation.