AS16509 18.68.144.0/21 CIDR and IP Range Summary.ASN: 16509 - Amazon.com Inc.Host Count: 2046Addressable IPs: 204818.68.144.0/2418.68.145.0/2418.68.146.0/2418.68.147.0/2418.68.148.0/2418.68.149.0/2418.68.150.0/2418.68.151.0/24