Google Chrome Whois Extension for TLD and RIR’s

This extension lets you query domain name and IP address whois records. It will redirect whois queries to the appropriate TLD or RIR registry website. .net and .com to verisign, .org to pir, .us and .biz to neustar, and .edu to educause. Any other domains are directed to network solutions. It also knows the allocation of IPv4 addresses and redirects to the appropriate RIR whois site. For IPv6 addresses it directs those queries to ARIN for now.