Robtex

Up: 203.142.16.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 203.142.20.0/23
Down right: 203.142.22.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.142.20.7	A	www2.mobilehotdog.com
203.142.20.12	A	flight.com.sg
203.142.20.12	A	newshan.com
203.142.20.12	A	mail.newshan.com
203.142.20.29	A+PTR	mx4.kodaltd.com
203.142.20.33	A	streben1.com
203.142.20.33	A	mail.tafep.sg
203.142.20.34	A	*.fairemployment.sg
203.142.20.34	A	mail.fairemployment.sg
203.142.20.40	A	safvl.org.sg
203.142.20.40	A	mail.njrc.com.sg
203.142.20.40	A	cityhallphotokiosk.com
203.142.20.54	A	worldcities.sg
203.142.20.58	A	fidrec.com.sg
203.142.20.64	A+PTR	phostsvr03.pasr.net
203.142.20.66	A+PTR	phostsvr04.pasr.net
203.142.20.72	A	dnssec1.pasr.net
203.142.20.73	A	www.pasr.net
203.142.20.73	A	pasr.net
203.142.20.73	A	pasr.com.sg
203.142.20.78	A	expatlivingsingapore.com
203.142.20.80	A+PTR	win-3042-sg.webvis.net
203.142.20.83	PTR	win-3027-sg.webvis.net
203.142.20.83	PTR	transvert.com.sg
203.142.20.86	A	strat-agile.com
203.142.20.86	A	confirmyourparticipation.com
203.142.20.86	A	strat-staging.com
203.142.20.100	A+PTR	mail.stluke.org.sg
203.142.20.100	A	mail.slh.org.sg
203.142.20.116	A	dns3.w3labs.com
203.142.20.122	PTR	webmail.maxias.net
203.142.20.122	A	alerts.maxias.net
203.142.20.122	A	mail.glennlim.com
203.142.20.124	A	kueducation.com
203.142.20.124	A	uptownsweets.sg
203.142.20.124	A	chiropractor-singapore.com
203.142.20.130	PTR	evideo.edu.sg
203.142.20.132	A	kr.goodyear.com
203.142.20.132	A	goodyear.com.sg
203.142.20.132	A	goodyear.co.th
203.142.20.144	PTR	nameserver.verztec.com
203.142.20.145	PTR	backup-nameserver.verztec.com
203.142.20.167	A	commzgate.net
203.142.20.167	A	*.commzgate.net
203.142.20.196	PTR	earth.sroute.net
203.142.20.197	PTR	earth1.sroute.net
203.142.20.198	PTR	neptune.sroute.net
203.142.20.200	PTR	zechariah.verztec.com
203.142.20.201	PTR	mail.verztec.com
203.142.20.202	PTR	ip-203-142-20-202.sroute.net
203.142.20.203	PTR	verztec.com
203.142.20.204	PTR	mail.verztec-emarketing.com
203.142.20.205	PTR	ip-203-142-20-205.sroute.net
203.142.20.206	PTR	ip-203-142-20-206.sroute.net
203.142.20.207	PTR	ip-203-142-20-207.sroute.net
203.142.20.208	PTR	ip-203-142-20-208.sroute.net
203.142.21.14	A	pelican.jobstreet.com
203.142.21.24	A	db2.jobstreet.com
203.142.21.53	A	siva-gov-jobs.jobstreet.com
203.142.21.54	A	careers-gov-jobs.jobstreet.com.sg
203.142.21.57	A	careers-gov-search.jobstreet.com.sg
203.142.21.73	A	ermine.jobstreet.com
203.142.21.81	A	octopus.jobstreet.com
203.142.21.90	A	careers.jobstreet.com.sg
203.142.21.90	A	careers.jobstreet.com.ph
203.142.21.95	A	myjobstreet.jobstreet.com.sg
203.142.21.132	A	baldrick.hosts.net.nz
203.142.21.133	A+PTR	flashheart.hosts.net.nz
203.142.21.139	A	reallife.com.sg
203.142.21.146	PTR	netivate.net
203.142.21.147	PTR	netivate.net
203.142.21.148	A	dinateknac.com
203.142.21.175	PTR	lion.hbndns.net
203.142.21.176	A	www.olga.moe.gov.sg
203.142.21.180	PTR	vps01.fngroup.com.sg
203.142.21.180	A	u-olga.moe.gov.sg
203.142.21.212	A+PTR	ns2.freeparking.co.nz
203.142.21.212	A	ns2.allbusinesscomputers.co.nz
203.142.21.212	A	ns2.2day.co.nz
203.142.21.216	PTR	razerzone.com
203.142.21.216	A+PTR	mx.razerzone.com
203.142.21.220	A+PTR	mcr.razerzone.com
203.142.21.221	A	www.cangzhou.biz
203.142.21.221	A	xn--t8w28mrriwr0a.com
203.142.21.221	A	www.020vk.com
203.142.21.228	A	pci.razerzone.com
203.142.21.250	A	www.thebodyshop.com.sg
203.142.21.250	A	thebodyshop.com.sg
203.142.21.251	A	www.thebodyshop.com.hk
203.142.22.12	A	ns5.n2nconnect.com
203.142.22.18	A	onetouchasia.co.in
203.142.22.18	A	onetouchasia.com.cn
203.142.22.18	A	onetouchasia.com.sg
203.142.22.23	PTR	www.amfraser.com.sg
203.142.22.23	A	www.fraserdirect.com.sg
203.142.22.130	A	mail.office-web-works.com
203.142.22.136	A	wapdownload.starhubgee.com.sg
203.142.22.144	A+PTR	mail.junctionm.com
203.142.22.144	A	*.junctionm.com
203.142.22.144	A	junctionm.com
203.142.22.150	PTR	mail.junctionm.com
203.142.22.150	A	junctionm.com
203.142.22.163	A	smtp1.aic.sg
203.142.22.170	PTR	wm.ufinity.com
203.142.22.170	A	mail.mailranger.com
203.142.22.178	A	seris.sg
203.142.22.182	A+PTR	smtp1.alexandrahealth.com.sg
203.142.22.182	A	sdev.mailranger.com
203.142.22.183	A+PTR	qc.singhealth.com.sg
203.142.22.183	A	cleanmail-04-02.mailranger.com
203.142.22.184	A	*.ufinity.com
203.142.22.184	A	bwtest.ufinity.com
203.142.22.186	PTR	wm.ufinity.com
203.142.22.197	A	shenchen.info
203.142.22.198	A	mail.nationalit.net
203.142.22.204	A	anantaracontentthai.info
203.142.22.207	A	anantara.jp
203.142.22.207	A	anantara.com.ru
203.142.22.207	A	anantara.es
203.142.22.212	A	peraquum.com
203.142.22.223	PTR	mail.star-buck.info
203.142.22.223	A+PTR	mail.capiteqinvestments.com
203.142.22.223	PTR	mail.portal-hsbc.net
203.142.22.228	A	access.southernridgescapital.com
203.142.22.249	A	businesschina.org.sg
203.142.23.6	PTR	gadis.cantik.org
203.142.23.21	A	ams.stlogs.com
203.142.23.25	PTR	mx2.glweststardubai.com
203.142.23.31	A	www.nutrifirst.net
203.142.23.31	A	nutrifirst.net
203.142.23.32	A	distributor-dmp.com
203.142.23.34	A	sgbros.com
203.142.23.43	A	typea.sg
203.142.23.44	A	siawmc2019.com
203.142.23.48	A	ravern.per.sg
203.142.23.146	A	hsbehsguidebook.com