9.22.85.in-addr.arpa is a domain controlled by two nameservers at dokom.de. They are on different IP networks. dsw.de, dew.de, ltgr.de, atwv.de, akdn.de and at least 59 other hosts share nameservers with this domain. 22.85.in-addr.arpa is a domain controlled by four nameservers. All of them are on different IP networks.