AS16509 18.244.0.0/21 CIDR and IP Range Summary.ASN: 16509 - Amazon.com Inc.Host Count: 2046Addressable IPs: 204818.244.0.0/2418.244.1.0/2418.244.2.0/2418.244.3.0/2418.244.4.0/2418.244.5.0/2418.244.6.0/2418.244.7.0/24