Lookup of 136.243.192.12
IP address: 136.243.192.12
Address type: IPv4
Host or reverse DNS (rDNS): static.12.192.243.136.clients.your-server.de
Country: 
Germany
136.243.192.12 does NOT belong to a private IP address block.
136.243.192.12 does NOT belong to a reserved IP address block.