Robtex

Up: 203.131.198.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 203.131.198.0/25
Down right: 203.131.198.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.131.198.12	A	5a-a08-c5.data-hotel.net
203.131.198.16	A+PTR	5a-a08-d3.data-hotel.net
203.131.198.24	A	5a-a08-a7.data-hotel.net
203.131.198.76	A+PTR	5b-l09-b4.data-hotel.net
203.131.198.76	A	vgw006.livedoor.com
203.131.198.78	A	vgw008.livedoor.com
203.131.198.78	A	5b-l09-b6.data-hotel.net
203.131.198.79	A	5a-p07-b2.data-hotel.net
203.131.198.79	A	vgw007.livedoor.com
203.131.198.80	A	5a-p07-b3.data-hotel.net
203.131.198.133	A+PTR	5a-r01-a3.data-hotel.net
203.131.198.134	A+PTR	5a-r01-a4.data-hotel.net
203.131.198.135	A+PTR	5a-r01-a5.data-hotel.net
203.131.198.137	A+PTR	5a-r01-b1.data-hotel.net
203.131.198.138	A	5a-r01-b2.data-hotel.net
203.131.198.138	A	5a-j04-c2.data-hotel.net
203.131.198.139	A	5a-r01-b3.data-hotel.net
203.131.198.140	A	5a-r01-b4.data-hotel.net
203.131.198.141	A	5a-r01-b5.data-hotel.net
203.131.198.142	A+PTR	5a-r01-b6.data-hotel.net
203.131.198.143	A	5a-r01-c1.data-hotel.net
203.131.198.145	A	5a-r01-c3.data-hotel.net
203.131.198.147	A	5a-r01-c5.data-hotel.net
203.131.198.149	A	5a-r01-d1.data-hotel.net
203.131.198.151	A	5a-r01-d3.data-hotel.net
203.131.198.152	A	5a-r01-d4.data-hotel.net
203.131.198.153	A	5a-r01-d5.data-hotel.net
203.131.198.154	A	5a-r01-d6.data-hotel.net
203.131.198.157	A	5a-r02-a2.data-hotel.net
203.131.198.158	A	5a-r02-a3.data-hotel.net
203.131.198.159	A	5a-r02-a4.data-hotel.net
203.131.198.160	A	5a-r02-a5.data-hotel.net
203.131.198.162	A	5a-r02-b1.data-hotel.net
203.131.198.163	A	5a-r02-b2.data-hotel.net
203.131.198.164	A	5a-r02-b3.data-hotel.net
203.131.198.165	A	5a-r02-b4.data-hotel.net
203.131.198.166	A	5a-r02-b5.data-hotel.net
203.131.198.167	A	5a-r02-b6.data-hotel.net
203.131.198.168	A	5a-w07-b4.data-hotel.net
203.131.198.169	A	5a-w07-b5.data-hotel.net
203.131.198.170	A	5a-w07-b6.data-hotel.net
203.131.198.172	A	5a-w07-a3.data-hotel.net
203.131.198.174	A	5a-r02-d5.data-hotel.net
203.131.198.175	A	5a-r02-d7.data-hotel.net
203.131.198.177	A	5a-r02-d4.data-hotel.net
203.131.198.179	A	5a-r02-d6.data-hotel.net
203.131.198.187	A	5a-p06-b6.data-hotel.net
203.131.198.200	PTR	blog.t.livedoor.com
203.131.198.205	PTR	blog-01.t.livedoor.com
203.131.198.205	A	kyclub.jp
203.131.198.205	A	xn--v8j1cza0hp89o7fff59a94l0q7ac02b4vp.net
203.131.198.240	A	203-131-198-240.data-hotel.net
203.131.198.241	A	203-131-198-241.data-hotel.net
203.131.198.251	A	5a-q01-a2.data-hotel.net
203.131.198.252	A	5a-q01-a1.data-hotel.net