Robtex

Up: 218.42.128.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 218.42.128.0/21
Down right: 218.42.136.0/21

IP	Type	Hostname
218.42.130.5	PTR	vsmobile.jp
218.42.130.7	PTR	ti.tekken-net.jp
218.42.130.9	A+PTR	mail.tekken-net.jp
218.42.130.16	A+PTR	i6.tekken-net.jp
218.42.130.16	A	i.tekken-net.jp
218.42.130.16	A	z.tekken-net.jp
218.42.130.21	PTR	tekken-net.jp
218.42.130.22	PTR	vsmobile.jp
218.42.130.22	A	mail01.vsmobile.jp
218.42.130.108	A	ns.ledzone.com
218.42.132.44	A	mail.lognokhoth.jp
218.42.133.65	A	2a8541.west.ea.isao.net
218.42.136.135	A	mailsv2.dricas.com
218.42.136.135	A	dricas.com
218.42.136.190	A	mailsv1.dricas.com
218.42.136.190	A	mailsv4.dricas.com
218.42.137.132	A	www.dricas.ne.jp
218.42.137.132	A	www.dricas.com
218.42.137.135	A+PTR	proxy.dricas.com
218.42.137.135	A	proxy.dricas.ne.jp
218.42.137.136	PTR	isao-mta01.isao.net
218.42.137.149	A	admin.isao.net
218.42.137.149	A	isao-mail02.isao.net
218.42.137.150	PTR	ns1.isao.co.jp
218.42.137.156	A+PTR	rank02.isao.net
218.42.137.161	A	blog-web01.track-back.net
218.42.137.162	A	blog-web02.track-back.net
218.42.137.171	PTR	892aab.isao.net
218.42.138.55	A	tml.sportsgw.net
218.42.138.114	PTR	902a72.isao.net
218.42.138.133	A	cilas.net
218.42.138.134	A	cl.cilas.net
218.42.138.135	A	b-star.jp
218.42.138.139	A	iscdn001.cilas.net
218.42.138.177	A+PTR	mail.isao.co.jp
218.42.138.203	A	t-web01.dricas.com
218.42.138.208	PTR	902ad0.isao.net
218.42.138.211	PTR	902ad3.isao.net