254.174.193.in-addr.arpa is a domain controlled by two nameservers on different IP networks. gbf.de, bsh.de, edu.cn, eqa.de, kgu.de and at least 58 other hosts share nameservers with this domain. 174.193.in-addr.arpa is a domain controlled by five nameservers having a total of six IP numbers. Some of them are on the same IP network.