AS16509 54.240.0.0/21 CIDR and IP Range Summary.ASN: 16509 - Amazon.com Inc.Host Count: 2046Addressable IPs: 204854.240.0.0/2454.240.1.0/2454.240.2.0/2454.240.3.0/2454.240.4.0/2454.240.5.0/2454.240.6.0/2454.240.7.0/24