IP WHOIS Lookup
Look up registration and network information for IP addresses using WHOIS
IP Whois
United States Department of Defense (DoD) CAAANET (NET-158-17-0-0-1) 158.17.0.0 - 158.17.255.255 Headquarters, USAISC CAAANET (NET-158-17-0-0-2) 158.17.0.0 - 158.17.255.255