Robtex

Up: 49.231.0.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 49.231.16.0/21
Down right: 49.231.24.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
49.231.16.2	PTR	49-231-16-2.sbn-idc.com
49.231.16.5	A	mail4.betagro.com
49.231.16.69	A	daemon.cmtc.ac.th
49.231.16.69	A	noppadol.cmtc.ac.th
49.231.16.99	A	bot.blackunix.us
49.231.16.130	PTR	49-231-16-130.sbn-idc.com
49.231.16.130	A	ns2.spgvecon-siam.com
49.231.16.130	A	ns2.spgnetwork-siam.com
49.231.16.247	A	mx2.aladdin.co.th
49.231.16.247	A	mx2.dohome.co.th
49.231.16.248	A	ns2.dohome.co.th
49.231.16.248	A	ns.dohome.co.th
49.231.18.9	A	ns1.up.ac.th
49.231.18.20	A+PTR	ns20.up.ac.th
49.231.18.21	A+PTR	mail.up.ac.th
49.231.18.23	PTR	49-231-18-23.sbn-idc.com
49.231.18.25	A+PTR	mailgw.up.ac.th
49.231.18.74	A	www.lannacattle.com
49.231.18.97	PTR	49-231-18-97.sbn-idc.com
49.231.18.97	A	clm.up.ac.th
49.231.18.100	A+PTR	up.ac.th
49.231.18.100	A+PTR	www.up.ac.th
49.231.18.100	A	svr-dev-web.up.ac.th
49.231.18.105	PTR	49-231-18-105.sbn-idc.com
49.231.18.139	PTR	49-231-18-139.sbn-idc.com
49.231.18.152	A	www.up.ac.th
49.231.18.152	A	svr-sql-web2.up.ac.th
49.231.18.161	PTR	49-231-18-161.sbn-idc.com
49.231.18.175	PTR	49-231-18-175.sbn-idc.com
49.231.18.175	A	politics.up.ac.th
49.231.18.231	PTR	49-231-18-231.sbn-idc.com
49.231.18.231	A	www.wattanapong.com
49.231.18.231	A	wattanapong.com
49.231.20.9	A	ns2.iv.co.th
49.231.20.10	A	ns1.iv.co.th
49.231.20.11	A	www.dooplus.tv
49.231.20.11	A	wap.dooplus.tv
49.231.23.114	A	60d118f86da1c.streamlock.net
49.231.24.22	PTR	49-231-24-22.sbn-idc.com
49.231.24.22	A	dropstation.net
49.231.24.67	PTR	49-231-24-67.sbn-idc.com
49.231.24.67	A	www.zeedsim.com
49.231.24.67	A	zeedsim.com
49.231.24.68	PTR	49-231-24-68.sbn-idc.com
49.231.24.68	A	smartgirls.ais.co.th
49.231.24.106	PTR	49-231-24-106.sbn-idc.com
49.231.24.106	A	nqmdev.com
49.231.24.114	PTR	49-231-24-114.sbn-idc.com
49.231.24.114	A	dld-test.com
49.231.24.195	A+PTR	pop3.isetan.co.th
49.231.24.195	A+PTR	mail.isetan.co.th
49.231.24.195	PTR	pop.isetan.co.th
49.231.24.229	PTR	49-231-24-229.sbn-idc.com
49.231.24.229	A	mail.world-electric.com
49.231.24.229	A	mail.world-electric.co.th
49.231.24.230	PTR	49-231-24-230.sbn-idc.com
49.231.24.254	A	mailx.asiantigers-thailand.com
49.231.24.254	A	mail.asiantigers-thailand.com
49.231.28.51	A	mx-1.nittsu.co.th
49.231.28.51	A	mx1.nittsu.co.th
49.231.30.13	PTR	49-231-30-13.sbn-idc.com
49.231.30.24	PTR	49-231-30-24.sbn-idc.com
49.231.30.24	A	ns01.nu.ac.th
49.231.30.30	PTR	49-231-30-30.sbn-idc.com
49.231.30.36	PTR	49-231-30-36.sbn-idc.com
49.231.30.36	A	transportindexthailand.com
49.231.30.36	A	www.satit.nu.ac.th
49.231.30.44	PTR	49-231-30-44.sbn-idc.com
49.231.30.49	PTR	49-231-30-49.sbn-idc.com
49.231.30.49	A	www.med.nu.ac.th
49.231.30.52	PTR	49-231-30-52.sbn-idc.com
49.231.30.52	A	reg.nu.ac.th
49.231.30.52	A	www.reg.nu.ac.th
49.231.30.57	PTR	49-231-30-57.sbn-idc.com
49.231.30.57	A	student.nu.ac.th
49.231.30.73	A	mail.nu.ac.th
49.231.30.85	PTR	49-231-30-85.sbn-idc.com
49.231.30.85	A	mail.nu.ac.th
49.231.30.94	A	ironport.nu.ac.th
49.231.30.101	PTR	49-231-30-101.sbn-idc.com
49.231.30.101	A	xn--42cfbd5dn4eh9bdc5acqw4ed1dgd8a1pe4a9njf.com
49.231.30.103	A	mis.nu.ac.th
49.231.31.2	A	reverse.nu.ac.th