tom.t-online.de is a domain controlled by four nameservers. Two of them are on the same IP network. btx.net, dizag.de, t-pop.net, t-mail.at, t-call.net and at least 33 other hosts share nameservers with this domain. cewap.tom.t-online.de and pcclient.tom.t-online.de are subdomains to this hostname. t-online.de is a domain controlled by four nameservers. Some of them are on the same IP network. Incoming mail for t-online.de is handled by four mailservers at t-online.de themselves. All of them are on the same IP network. t-online.de has two IP numbers. They are on different IP networks.