Robtex

Up: 203.156.128.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 203.156.160.0/20
Down right: 203.156.176.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.156.160.110	PTR	mail.gsl-th.com
203.156.161.20	A+PTR	ap01.mountbatten.org
203.156.161.60	A	hr.crg.co.th
203.156.162.60	A+PTR	bkkbox.com
203.156.162.60	A	bkk.th2000.com
203.156.162.60	A	bkk.thbox.com
203.156.162.158	PTR	ns1.naraya.com
203.156.162.158	A	mail.naraya.in
203.156.162.158	A	naraya.com.es
203.156.162.166	A	googleapptest.se-ed.net
203.156.162.171	A	se-ed.org
203.156.162.171	A	ns7.se-ed.org
203.156.162.176	A	se-ed.org
203.156.162.176	A	ns8.se-ed.org
203.156.164.146	PTR	ns1.ralclegal.com
203.156.164.146	A	sctland.com
203.156.164.146	A	mail.ralclegal.com
203.156.166.35	A+PTR	mail.gibco.co.th
203.156.166.187	A	tse.in.th
203.156.166.203	A	mail2.powermatic.co.th
203.156.167.41	A+PTR	mail2.tanandsons.com
203.156.167.115	PTR	gateway.citiresort.com
203.156.167.115	A+PTR	gateway.lawmetro.com
203.156.167.115	A+PTR	bangkoksteel.co.th
203.156.167.146	A+PTR	ns2.astra.co.th
203.156.167.146	A	ns2.astra.in.th
203.156.167.156	PTR	mail.astra.co.th
203.156.167.156	PTR	ns1.astra.co.th
203.156.167.156	A	ns1.astra.in.th
203.156.168.71	PTR	mail.apc.co.th
203.156.168.74	A+PTR	mail.ase.co.th
203.156.168.138	A	mail.sangchaimeter.com
203.156.169.250	A	mail.ajplast.co.th
203.156.169.251	A	mail.corecasys.com
203.156.169.251	A	mail.nickservice.com
203.156.169.251	A	mail.corecasys.net
203.156.173.40	A+PTR	mx.bestradegroup.com
203.156.178.111	A	www.xn--12c2dali3gqa8q.com
203.156.178.111	A	apples.thmy.com
203.156.178.111	A	sangkaw.com
203.156.178.233	A+PTR	mail.sfnthai.com
203.156.183.45	PTR	www.nisshonbo.co.th
203.156.183.45	A	mx1.nisshinbo.co.th
203.156.183.45	A	www.nisshinbo.co.th
203.156.183.46	A	mail.nisshinbo.co.th
203.156.183.138	A+PTR	mail.ipeth.co.th
203.156.183.142	A	mail.ipeth.co.th
203.156.183.150	A	mail.psg.co.th
203.156.183.150	A	mail.fittauto.com
203.156.183.150	A	mail.wdi.co.th
203.156.183.182	A	itc-f1.com
203.156.186.163	PTR	scwado.com
203.156.186.163	PTR	data.scwado.com
203.156.186.163	PTR	mail.scwado.com
203.156.186.207	A	claudiathenetworkingdiva.net
203.156.186.207	A	gosdaturacatala.org
203.156.186.207	A	www.lampangfood.com
203.156.187.230	A	mail.zdpxummafresh.xyz
203.156.190.11	A	mail.gardnerdenver.co.th
203.156.191.17	A	eoffice.sahapat.co.th