AS16509 18.173.88.0/21 CIDR and IP Range Summary.ASN: 16509 - Amazon.com Inc.Host Count: 2046Addressable IPs: 204818.173.88.0/2418.173.89.0/2418.173.90.0/2418.173.91.0/2418.173.92.0/2418.173.93.0/2418.173.94.0/2418.173.95.0/24