AS16509 54.240.192.0/21 CIDR and IP Range Summary.ASN: 16509 - Amazon.com Inc.Host Count: 2046Addressable IPs: 204854.240.192.0/2454.240.193.0/2454.240.194.0/2454.240.195.0/2454.240.196.0/2454.240.197.0/2454.240.198.0/2454.240.199.0/24