82.243.72.in-addr.arpa is a domain controlled by four nameservers at deltacom.net. Two nameservers have the same IP number. Two of them are on the same IP network. bti.com, acc.edu, mahl.com, acc1.edu, msar.org and at least 61 other hosts share nameservers with this domain. 243.72.in-addr.arpa is delegated to two nameservers, however both delegated nameservers are missing in the zone. All nameservers are also at deltacom.net. They are on different IP networks.