Lookup of 3.121.23.43
IP address: 3.121.23.43
Address type: IPv4
Host or reverse DNS (rDNS): ec2-3-121-23-43.eu-central-1.compute.amazonaws.com
Country: 
Germany
3.121.23.43 does NOT belong to a private IP address block.
3.121.23.43 does NOT belong to a reserved IP address block.