IP WHOIS Lookup
Look up registration and network information for IP addresses using WHOIS
IP Whois
Optimum Online OPTO (NET-148-74-0-0-1) 148.74.0.0 - 148.76.63.255 Optimum Online (Cablevision Systems) OOL-CPE-HCVLNY-148-74-144-0-1-20 (NET-148-74-144-0-1) 148.74.144.0 - 148.74.159.255