IP WHOIS Lookup
Look up registration and network information for IP addresses using WHOIS
IP Whois
Rackspace Hosting RSCP-NET-4 (NET-204-232-128-0-1) 204.232.128.0 - 204.232.255.255 The American Institute of Architects RACKS-8-1429563497398617 (NET-204-232-140-160-1) 204.232.140.160 - 204.232.140.167