Robtex

Up: 103.2.64.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 103.2.64.0/23
Down right: 103.2.66.0/23

IP	Type	Hostname
103.2.64.13	A+PTR	g64-13.user.cosmostv.jp
103.2.64.37	PTR	g64-37.user.cosmostv.jp
103.2.64.72	A+PTR	g64-72.user.cosmostv.jp
103.2.64.81	A	g64-81.user.cosmostv.jp
103.2.64.88	A+PTR	g64-88.user.cosmostv.jp
103.2.64.110	A+PTR	g64-110.user.cosmostv.jp
103.2.64.128	A+PTR	g64-128.user.cosmostv.jp
103.2.64.176	A+PTR	g64-176.user.cosmostv.jp
103.2.64.184	A+PTR	g64-184.user.cosmostv.jp
103.2.64.215	A+PTR	g64-215.user.cosmostv.jp
103.2.65.66	A+PTR	g65-66.user.cosmostv.jp
103.2.65.128	A+PTR	g65-128.user.cosmostv.jp
103.2.65.145	PTR	g65-145.user.cosmostv.jp
103.2.65.179	A+PTR	g65-179.user.cosmostv.jp
103.2.65.195	A+PTR	g65-195.user.cosmostv.jp
103.2.65.201	A+PTR	g65-201.user.cosmostv.jp
103.2.66.26	A+PTR	g66-26.user.cosmostv.jp
103.2.66.79	A+PTR	g66-79.user.cosmostv.jp
103.2.66.114	PTR	g66-114.user.cosmostv.jp
103.2.66.130	A+PTR	g66-130.user.cosmostv.jp
103.2.66.155	A+PTR	g66-155.user.cosmostv.jp
103.2.66.160	A+PTR	g66-160.user.cosmostv.jp
103.2.66.181	A+PTR	g66-181.user.cosmostv.jp
103.2.66.190	A+PTR	g66-190.user.cosmostv.jp
103.2.66.235	A+PTR	g66-235.user.cosmostv.jp
103.2.66.246	A+PTR	g66-246.user.cosmostv.jp
103.2.67.3	A+PTR	g67-3.user.cosmostv.jp
103.2.67.51	A+PTR	g67-51.user.cosmostv.jp
103.2.67.62	A+PTR	g67-62.user.cosmostv.jp
103.2.67.115	A+PTR	g67-115.user.cosmostv.jp
103.2.67.127	A+PTR	g67-127.user.cosmostv.jp
103.2.67.146	A+PTR	g67-146.user.cosmostv.jp
103.2.67.175	A+PTR	g67-175.user.cosmostv.jp
103.2.67.178	A+PTR	g67-178.user.cosmostv.jp
103.2.67.188	A+PTR	g67-188.user.cosmostv.jp
103.2.67.190	A	ritz-fm.info
103.2.67.207	A+PTR	g67-207.user.cosmostv.jp
103.2.67.221	A+PTR	g67-221.user.cosmostv.jp