IP WHOIS Lookup
Look up registration and network information for IP addresses using WHOIS
IP Whois
Liberty Mobile Puerto Rico Inc. CENT-IP (NET-200-50-0-0-1) 200.50.0.0 - 200.50.31.255 Ayustar Corp. ISPR-AYUSTAR4 (NET-200-50-27-0-1) 200.50.27.0 - 200.50.27.255