**To describe prefix lists** This example lists all available prefix lists for the region. Command:: aws ec2 describe-prefix-lists Output:: { "PrefixLists": [ { "PrefixListName": "com.amazonaws.us-east-1.s3", "Cidrs": [ "54.231.0.0/17" ], "PrefixListId": "pl-63a5400a" } ] }