220.71.192.in-addr.arpa is a domain controlled by four nameservers. All of them are on different IP networks. uio.no, lfv.se, sea.se, hof.se, com.mt and at least 84 other hosts share nameservers with this domain. 71.192.in-addr.arpa is a domain controlled by five nameservers. All of them are on different IP networks.