AS16509 64.252.136.0/21 CIDR and IP Range Summary.ASN: 16509 - Amazon.com Inc.Host Count: 2046Addressable IPs: 204864.252.136.0/2464.252.137.0/2464.252.138.0/2464.252.139.0/2464.252.140.0/2464.252.141.0/2464.252.142.0/2464.252.143.0/24