Lookup of 148.251.231.137
IP address: 148.251.231.137
Address type: IPv4
Host or reverse DNS (rDNS): static.137.231.251.148.clients.your-server.de
Country: 
Germany
148.251.231.137 does NOT belong to a private IP address block.
148.251.231.137 does NOT belong to a reserved IP address block.