IP-WHOIS database lookup

Important message The Postmodern.com IP-WHOIS database lookup is currently unavailable. It appears that there have been some changes in the interface to the registry databases which broke the query program. The search form will be up again as soon as the problem is resolved. You may be able to look up the owners of some IP address ranges at the ARIN WHOIS Database Search Page (USA), the RIPE WHOIS Page (Europe), and the APNIC WHOIS Page (Asia/Pacific), but each of those only handles their respective region. Apologies for the inconvenience and please return in the future.