Lookup of 52.57.51.100
IP address: 52.57.51.100
Address type: IPv4
Host or reverse DNS (rDNS): ec2-52-57-51-100.eu-central-1.compute.amazonaws.com
Country: 
Germany
52.57.51.100 does NOT belong to a private IP address block.
52.57.51.100 does NOT belong to a reserved IP address block.