Non-authoritative answer: 41.11.214.61.in-addr.arpa name = p7041-ipad01souka.saitama.ocn.ne.jp.
Authoritative answers can be found from: 11.214.61.in-addr.arpa nameserver = ns-kn001.ocn.ad.jp. 11.214.61.in-addr.arpa nameserver = ns-kg001.ocn.ad.jp. ns-kg001.ocn.ad.jp internet address = 211.129.14.142 ns-kn001.ocn.ad.jp internet address = 211.129.12.50