AS16509 72.1.32.0/21 CIDR and IP Range Summary.ASN: 16509 - Amazon.com Inc.Host Count: 2046Addressable IPs: 204872.1.32.0/2472.1.33.0/2472.1.34.0/2472.1.35.0/2472.1.36.0/2472.1.37.0/2472.1.38.0/2472.1.39.0/24