AS16509 54.192.248.0/21 CIDR and IP Range Summary.ASN: 16509 - Amazon.com Inc.Host Count: 2046Addressable IPs: 204854.192.248.0/2454.192.249.0/2454.192.250.0/2454.192.251.0/2454.192.252.0/2454.192.253.0/2454.192.254.0/2454.192.255.0/24