Summary
0.50.208.in-addr.arpa is delegated to four nameservers, however one delegated nameserver is missing in the zone and two other nameservers are listed. Two nameservers have the same IP number. Two of them are on the same IP network.
cph.com,
quza.net,
bmco.com,
avid.com,
gblx.net and at least 43 other hosts share nameservers with this domain.