Lookup of 52.73.21.47
IP address: 52.73.21.47
Address type: IPv4
Host or reverse DNS (rDNS): ec2-52-73-21-47.compute-1.amazonaws.com
Country: 
United States
52.73.21.47 does NOT belong to a private IP address block.
52.73.21.47 does NOT belong to a reserved IP address block.