AS16509 143.204.160.0/21 CIDR and IP Range Summary.ASN: 16509 - Amazon.com Inc.Host Count: 2046Addressable IPs: 2048143.204.160.0/24143.204.161.0/24143.204.162.0/24143.204.163.0/24143.204.164.0/24143.204.165.0/24143.204.166.0/24143.204.167.0/24