05.sf2p.tfbnw.net, 01.sf2p.tfbnw.net, br.sf2p.tfbnw.net, 02.sf2p.tfbnw.net, mx.sf2p.tfbnw.net and at least 60 other hosts are subdomains to this hostname. tfbnw.net is delegated to three nameservers, however one delegated nameserver is missing in the zone. All of them are on the same IP network. Incoming mail for tfbnw.net is handled by one mailserver having a total of two IP numbers. They are on the same IP network.