AS16509 52.129.104.0/21 CIDR and IP Range Summary.ASN: 16509 - Amazon.com Inc.Host Count: 2046Addressable IPs: 204852.129.104.0/2452.129.105.0/2452.129.106.0/2452.129.107.0/2452.129.108.0/2452.129.109.0/2452.129.110.0/2452.129.111.0/24