find out an owner / registrar of an IP address or IP address block using Smart Whois domain lookup service.If behind router / firewall, then gateway address is shown. IP address is exposed to any network service (web, FTP, etc.).
shows your computer IP address, that is seen by web servers and network.An IPv6 address is represented as eight groups of four hexadecimal digits, each group is separated by a colon. Also IP / IPv6 Calculator shows longest and shortest IPv6 versions / variations. online tool to convert IPv6 address to corresponding literal address.arpa domain and PTR record) and DNS resolution to determine domain name by IP address.