Lookup of 52.72.121.237
IP address: 52.72.121.237
Address type: IPv4
Host or reverse DNS (rDNS): ec2-52-72-121-237.compute-1.amazonaws.com
Country: 
United States
52.72.121.237 does NOT belong to a private IP address block.
52.72.121.237 does NOT belong to a reserved IP address block.