Robtex

Up: 203.125.16.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 203.125.18.0/24
Down right: 203.125.19.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.125.18.6	PTR	mx1.addonsystems.net
203.125.18.12	A+PTR	mail.addonsystems.net
203.125.18.78	A	gpsystem.org
203.125.18.78	A	mail.gpsystem.org
203.125.18.119	PTR	mx.interflour.com.sg
203.125.18.119	A	mail.interflour.com.my
203.125.18.129	A	iglosel.com
203.125.18.161	A+PTR	smtpout1.iwalogistics.com
203.125.18.161	A	dns1.iwalogistics.com
203.125.18.161	A	webmail.iwalogistics.com
203.125.18.162	A	dns2.iwalogistics.com
203.125.18.163	A	smtpout.iwalogistics.com
203.125.18.165	A	www.iwalogistics.com
203.125.18.168	A	smtpin.iwalogistics.com
203.125.18.181	A	officemail.wizwerx.com
203.125.18.185	A	centos.wizwerx.com
203.125.18.186	PTR	dev2.wizwerx.com
203.125.18.186	A+PTR	sme.wizwerx.com
203.125.18.188	A	188.bizlink.wizwerx.com
203.125.18.189	A	dev.wizwerx.com
203.125.18.230	A+PTR	webmail.mgc.com.sg
203.125.18.230	A	smtp.mgc.com.sg
203.125.18.231	PTR	mail.mis88.com.sg
203.125.18.231	A	www.tum-create.edu.sg
203.125.18.232	A	commercelink.com.sg
203.125.18.232	A	www.sfbi.com.sg
203.125.18.232	A	www.commercelink.com.sg
203.125.18.235	PTR	smtp.mispl.com.sg
203.125.18.235	A	itreks.eu
203.125.18.235	A	smtp.mis.sg
203.125.18.236	PTR	exmail2.mispl.com.sg
203.125.18.236	A	smtp.mis.sg
203.125.18.236	A	mail.kabeltec.com.sg
203.125.18.237	PTR	mail2.mis88.com.sg
203.125.18.238	PTR	smtp.mispl.com.sg
203.125.18.238	A	bentzjazmobile.com
203.125.18.238	A	gravitreks.com