Lookup of 52.51.84.81
IP address: 52.51.84.81
Address type: IPv4
Host or reverse DNS (rDNS): ec2-52-51-84-81.eu-west-1.compute.amazonaws.com
Country: 
Ireland
52.51.84.81 does NOT belong to a private IP address block.
52.51.84.81 does NOT belong to a reserved IP address block.