147.219.218.in-addr.arpa is delegated to three nameservers, however one delegated nameserver is missing in the zone. All nameservers are at edit.ne.jp. All of them are on the same IP network. tgw.jp, nmn.jp, 5925.org, tril.net, bkdb.net and at least 44 other hosts share nameservers with this domain. 219.218.in-addr.arpa is a domain controlled by six nameservers at dns.jp. All of them are on different IP networks.