AS16509 56.103.152.0/21 CIDR and IP Range Summary.ASN: 16509 - Amazon.com Inc.Host Count: 2046Addressable IPs: 204856.103.152.0/2456.103.153.0/2456.103.154.0/2456.103.155.0/2456.103.156.0/2456.103.157.0/2456.103.158.0/2456.103.159.0/24