AS16509 52.219.64.0/21 CIDR and IP Range Summary.ASN: 16509 - Amazon.com Inc.Host Count: 2046Addressable IPs: 204852.219.64.0/2452.219.65.0/2452.219.66.0/2452.219.67.0/2452.219.68.0/2452.219.69.0/2452.219.70.0/2452.219.71.0/24