AS16509 13.57.28.128/29 CIDR and IP Range Summary.ASN: 16509 - Amazon.com Inc.Host Count: 6Addressable IPs: 8 13.57.28.12913.57.28.13013.57.28.13113.57.28.13213.57.28.13313.57.28.13413.57.28.13513.57.28.136