AS16509 18.244.64.0/21 CIDR and IP Range Summary.ASN: 16509 - Amazon.com Inc.Host Count: 2046Addressable IPs: 204818.244.64.0/2418.244.65.0/2418.244.66.0/2418.244.67.0/2418.244.68.0/2418.244.69.0/2418.244.70.0/2418.244.71.0/24