AS16509 54.230.144.0/21 CIDR and IP Range Summary.ASN: 16509 - Amazon.com Inc.Host Count: 2046Addressable IPs: 204854.230.144.0/2454.230.145.0/2454.230.146.0/2454.230.147.0/2454.230.148.0/2454.230.149.0/2454.230.150.0/2454.230.151.0/24