Robtex

Up: 210.4.136.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 210.4.140.0/23
Down right: 210.4.142.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
210.4.140.14	PTR	210-4-140-14.inter.net.th
210.4.140.23	PTR	210-4-140-23.inter.net.th
210.4.140.30	PTR	210-4-140-30.inter.net.th
210.4.140.35	PTR	210-4-140-35.inter.net.th
210.4.140.37	PTR	210-4-140-37.inter.net.th
210.4.140.48	PTR	210-4-140-48.inter.net.th
210.4.140.58	PTR	210-4-140-58.inter.net.th
210.4.140.62	PTR	210-4-140-62.inter.net.th
210.4.140.66	PTR	210-4-140-66.inter.net.th
210.4.140.72	PTR	210-4-140-72.inter.net.th
210.4.140.80	PTR	210-4-140-80.inter.net.th
210.4.140.81	PTR	210-4-140-81.inter.net.th
210.4.140.87	PTR	210-4-140-87.inter.net.th
210.4.140.92	PTR	210-4-140-92.inter.net.th
210.4.140.130	PTR	mailgw.mogen.co.th
210.4.140.203	PTR	210-4-140-203.inter.net.th
210.4.140.203	A	lhfg.co.th
210.4.141.11	PTR	210-4-141-11.inter.net.th
210.4.143.1	PTR	www.judiciary.go.th
210.4.143.2	PTR	mail.judiciary.go.th
210.4.143.3	PTR	www2.judiciary.go.th
210.4.143.13	PTR	www.crimc.judiciary.go.th
210.4.143.14	PTR	mail.bafs.co.th
210.4.143.15	PTR	mailsrv2.bafs.co.th
210.4.143.36	A	mail.thaimobiledvr.com
210.4.143.36	A	thaimobiledvr.com
210.4.143.39	PTR	210-4-143-39.dtc.inter.net.th
210.4.143.43	A	mailgw.dtc.co.th
210.4.143.45	A	dtcdemo.com
210.4.143.48	PTR	210-4-143-48.dtc.inter.net.th
210.4.143.48	A	mail.dtc.co.th
210.4.143.49	PTR	210-4-143-49.dtc.inter.net.th
210.4.143.49	A	mail-gateway.dtcgps.com
210.4.143.51	A	thaidigitalmap.com
210.4.143.52	PTR	210-4-143-52.dtc.inter.net.th
210.4.143.52	A	mail-gateway.dtc.co.th
210.4.143.54	PTR	210-4-143-54.dtc.inter.net.th
210.4.143.59	PTR	210-4-143-59.dtc.inter.net.th
210.4.143.59	A	iamchinnapat.com
210.4.143.59	A	neo-files.com
210.4.143.61	PTR	210-4-143-61.dtc.inter.net.th
210.4.143.64	PTR	210-4-143-64.fareastddb.inter.net.th
210.4.143.67	PTR	210-4-143-67.fareastddb.inter.net.th
210.4.143.67	A	mail.fareastddb.com
210.4.143.68	PTR	210-4-143-68.fareastddb.inter.net.th
210.4.143.68	A	www.fareastddb.com
210.4.143.68	A	fareastddb.com
210.4.143.69	A	www.whitefront.co.th
210.4.143.76	A+PTR	mail.whitefront.co.th
210.4.143.76	PTR	210-4-143-76.fareastddb.inter.net.th
210.4.143.82	A	cda-academy-th.com
210.4.143.162	A+PTR	mail.asiatic.co.th
210.4.143.162	A	imap.gfca.com
210.4.143.163	A	webmail.gfca.com
210.4.143.164	A+PTR	scanmail.gfca.com
210.4.143.165	PTR	210-4-143-165.inter.net.th
210.4.143.165	A	delihouse.com
210.4.143.165	A	mail.delihouse.com