Robtex

Up: 61.245.208.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 61.245.208.0/22
Down right: 61.245.212.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
61.245.208.0	A+PTR	host-61-245-208-0.mctv.ne.jp
61.245.209.218	A+PTR	host-61-245-209-218.mctv.ne.jp
61.245.210.80	PTR	host-61-245-210-80.mctv.ne.jp
61.245.210.81	A	poweredbyte.net
61.245.210.81	A	love-warrior.net
61.245.211.60	A+PTR	host-61-245-211-60.mctv.ne.jp
61.245.213.2	A+PTR	host-61-245-213-2.mctv.ne.jp
61.245.213.4	A	host-61-245-213-4.mctv.ne.jp
61.245.213.5	A	host-61-245-213-5.mctv.ne.jp
61.245.213.7	A	host-61-245-213-7.mctv.ne.jp
61.245.213.11	A+PTR	host-61-245-213-11.mctv.ne.jp
61.245.213.13	A	host-61-245-213-13.mctv.ne.jp
61.245.213.14	A	host-61-245-213-14.mctv.ne.jp
61.245.213.15	A	host-61-245-213-15.mctv.ne.jp
61.245.213.17	A+PTR	host-61-245-213-17.mctv.ne.jp
61.245.213.18	A+PTR	host-61-245-213-18.mctv.ne.jp
61.245.213.20	A	host-61-245-213-20.mctv.ne.jp
61.245.213.21	A	host-61-245-213-21.mctv.ne.jp
61.245.213.24	A+PTR	host-61-245-213-24.mctv.ne.jp
61.245.213.29	A	host-61-245-213-29.mctv.ne.jp
61.245.213.32	A+PTR	host-61-245-213-32.mctv.ne.jp
61.245.213.44	A	host-61-245-213-44.mctv.ne.jp
61.245.213.57	A+PTR	host-61-245-213-57.mctv.ne.jp
61.245.213.58	A+PTR	host-61-245-213-58.mctv.ne.jp
61.245.213.60	A	host-61-245-213-60.mctv.ne.jp
61.245.213.61	A	host-61-245-213-61.mctv.ne.jp
61.245.213.68	A	host-61-245-213-68.mctv.ne.jp
61.245.213.69	A	host-61-245-213-69.mctv.ne.jp
61.245.213.70	A	host-61-245-213-70.mctv.ne.jp
61.245.213.72	A+PTR	host-61-245-213-72.mctv.ne.jp
61.245.213.74	A+PTR	host-61-245-213-74.mctv.ne.jp
61.245.213.78	A	host-61-245-213-78.mctv.ne.jp
61.245.213.79	A	host-61-245-213-79.mctv.ne.jp
61.245.213.83	A+PTR	host-61-245-213-83.mctv.ne.jp
61.245.213.85	A	host-61-245-213-85.mctv.ne.jp
61.245.213.94	A	host-61-245-213-94.mctv.ne.jp
61.245.213.97	A+PTR	host-61-245-213-97.mctv.ne.jp
61.245.213.98	A+PTR	host-61-245-213-98.mctv.ne.jp
61.245.213.101	A	host-61-245-213-101.mctv.ne.jp
61.245.213.104	A+PTR	host-61-245-213-104.mctv.ne.jp
61.245.213.108	A	host-61-245-213-108.mctv.ne.jp
61.245.213.116	A	host-61-245-213-116.mctv.ne.jp
61.245.213.118	A	host-61-245-213-118.mctv.ne.jp
61.245.213.121	A+PTR	host-61-245-213-121.mctv.ne.jp
61.245.213.125	A	host-61-245-213-125.mctv.ne.jp
61.245.213.129	A+PTR	host-61-245-213-129.mctv.ne.jp
61.245.213.131	A+PTR	host-61-245-213-131.mctv.ne.jp
61.245.213.135	A	host-61-245-213-135.mctv.ne.jp
61.245.213.136	A+PTR	host-61-245-213-136.mctv.ne.jp
61.245.213.138	A+PTR	host-61-245-213-138.mctv.ne.jp
61.245.213.139	A+PTR	host-61-245-213-139.mctv.ne.jp
61.245.213.143	A	host-61-245-213-143.mctv.ne.jp
61.245.213.146	A+PTR	host-61-245-213-146.mctv.ne.jp
61.245.213.150	A	host-61-245-213-150.mctv.ne.jp
61.245.213.152	A	host-61-245-213-152.mctv.ne.jp
61.245.213.153	A+PTR	host-61-245-213-153.mctv.ne.jp
61.245.213.158	A	host-61-245-213-158.mctv.ne.jp
61.245.213.169	A+PTR	host-61-245-213-169.mctv.ne.jp
61.245.213.174	A	host-61-245-213-174.mctv.ne.jp
61.245.213.176	A+PTR	host-61-245-213-176.mctv.ne.jp
61.245.213.180	A	host-61-245-213-180.mctv.ne.jp
61.245.213.181	A	host-61-245-213-181.mctv.ne.jp
61.245.213.182	A	host-61-245-213-182.mctv.ne.jp
61.245.213.184	A+PTR	host-61-245-213-184.mctv.ne.jp
61.245.213.190	A	host-61-245-213-190.mctv.ne.jp
61.245.213.196	A	host-61-245-213-196.mctv.ne.jp
61.245.213.197	A	host-61-245-213-197.mctv.ne.jp
61.245.213.198	A	host-61-245-213-198.mctv.ne.jp
61.245.213.201	A+PTR	host-61-245-213-201.mctv.ne.jp
61.245.213.204	A	host-61-245-213-204.mctv.ne.jp
61.245.213.210	A+PTR	host-61-245-213-210.mctv.ne.jp
61.245.213.211	A+PTR	host-61-245-213-211.mctv.ne.jp
61.245.213.215	A	host-61-245-213-215.mctv.ne.jp
61.245.213.216	A+PTR	host-61-245-213-216.mctv.ne.jp
61.245.213.227	A+PTR	host-61-245-213-227.mctv.ne.jp
61.245.213.230	A	host-61-245-213-230.mctv.ne.jp
61.245.213.234	A+PTR	host-61-245-213-234.mctv.ne.jp
61.245.213.242	A+PTR	host-61-245-213-242.mctv.ne.jp
61.245.213.252	A	host-61-245-213-252.mctv.ne.jp
61.245.214.26	PTR	host-61-245-214-26.mctv.ne.jp
61.245.214.26	A	mx2.love-warrior.net
61.245.214.26	A	mx.tqqq.net
61.245.214.59	PTR	host-61-245-214-59.mctv.ne.jp
61.245.215.109	A	host-61-245-215-109.mctv.ne.jp
61.245.215.255	A	host-61-245-215-255.mctv.ne.jp