co ("404") is a domain controlled by six nameservers. Two of them are on the same IP network. keropee.net use this as a nameserver. wcbn.org, cuny.edu, fathom.com, dorkbot.org, barnard.edu and at least 15 other hosts share nameservers with this domain. uk.co, co.co, rr.co, in.co, id.co and at least 100 other hosts are subdomains to this hostname.