AS16509 54.240.248.0/21 CIDR and IP Range Summary.ASN: 16509 - Amazon.com Inc.Host Count: 2046Addressable IPs: 204854.240.248.0/2454.240.249.0/2454.240.250.0/2454.240.251.0/2454.240.252.0/2454.240.253.0/2454.240.254.0/2454.240.255.0/24