AS16509 15.220.216.0/21 CIDR and IP Range Summary.ASN: 16509 - Amazon.com Inc.Host Count: 2046Addressable IPs: 204815.220.216.0/2415.220.217.0/2415.220.218.0/2415.220.219.0/2415.220.220.0/2415.220.221.0/2415.220.222.0/2415.220.223.0/24