AS16509 54.192.152.0/21 CIDR and IP Range Summary.ASN: 16509 - Amazon.com Inc.Host Count: 2046Addressable IPs: 204854.192.152.0/2454.192.153.0/2454.192.154.0/2454.192.155.0/2454.192.156.0/2454.192.157.0/2454.192.158.0/2454.192.159.0/24