Lookup of 52.3.73.28
IP address: 52.3.73.28
Address type: IPv4
Host or reverse DNS (rDNS): ec2-52-3-73-28.compute-1.amazonaws.com
Country: 
United States
52.3.73.28 does NOT belong to a private IP address block.
52.3.73.28 does NOT belong to a reserved IP address block.