Lookup of 52.40.139.19
IP address: 52.40.139.19
Address type: IPv4
Host or reverse DNS (rDNS): ec2-52-40-139-19.us-west-2.compute.amazonaws.com
Country: 
United States
52.40.139.19 does NOT belong to a private IP address block.
52.40.139.19 does NOT belong to a reserved IP address block.