AS16509 143.204.224.0/21 CIDR and IP Range Summary.ASN: 16509 - Amazon.com Inc.Host Count: 2046Addressable IPs: 2048143.204.224.0/24143.204.225.0/24143.204.226.0/24143.204.227.0/24143.204.228.0/24143.204.229.0/24143.204.230.0/24143.204.231.0/24