AS16509 15.199.128.0/21 CIDR and IP Range Summary.ASN: 16509 - Amazon.com Inc.Host Count: 2046Addressable IPs: 204815.199.128.0/2415.199.129.0/2415.199.130.0/2415.199.131.0/2415.199.132.0/2415.199.133.0/2415.199.134.0/2415.199.135.0/24