AS16509 18.165.16.0/21 CIDR and IP Range Summary.ASN: 16509 - Amazon.com Inc.Host Count: 2046Addressable IPs: 204818.165.16.0/2418.165.17.0/2418.165.18.0/2418.165.19.0/2418.165.20.0/2418.165.21.0/2418.165.22.0/2418.165.23.0/24