Lookup of 23.88.97.17
IP address: 23.88.97.17
Address type: IPv4
Hostname or reverse DNS (rDNS): static.17.97.88.23.clients.your-server.de
Country: 
Germany
23.88.97.17 does NOT belong to a private IP address block.
23.88.97.17 does NOT belong to a reserved IP address block.