Lookup of 148.251.5.23
IP address: 148.251.5.23
Address type: IPv4
Host or reverse DNS (rDNS): static.23.5.251.148.clients.your-server.de
Country: 
Germany
148.251.5.23 does NOT belong to a private IP address block.
148.251.5.23 does NOT belong to a reserved IP address block.