IP WHOIS Lookup
Look up registration and network information for IP addresses using WHOIS
IP Whois
Rackspace Hosting RACKS-8-NET-10 (NET-198-61-128-0-1) 198.61.128.0 - 198.61.255.255 Callidus Cloud RACKS-8-1346107337926011 (NET-198-61-145-16-1) 198.61.145.16 - 198.61.145.31