Robtex

Up: 203.127.88.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 203.127.92.0/23
Down right: 203.127.94.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.127.92.50	PTR	mailmaster.leggenda.com.sg
203.127.92.50	A	leggenda.com.sg
203.127.92.98	A+PTR	sslvpn.swiber.com
203.127.92.99	PTR	autodiscover.swiber.com
203.127.92.99	PTR	mail.swiber.com
203.127.92.99	A	mail.newcruz.com
203.127.92.105	PTR	mail.swiber.com
203.127.92.107	A+PTR	abs.swiber.com
203.127.92.107	PTR	sharepoint.swiber.com
203.127.92.115	A+PTR	sip.swiber.com
203.127.92.126	A+PTR	smtp.swiber.com
203.127.92.126	A	smtp.kreuzinternational.com
203.127.92.130	PTR	ns1.ddb.com.sg
203.127.92.130	A	rappcollins.com.sg
203.127.92.130	A	ddbhealth.com.sg
203.127.92.132	PTR	mail.ddb.com.sg
203.127.92.151	A	151.ddb.com.sg
203.127.93.2	PTR	fsserver.foster.com.sg
203.127.93.2	PTR	fsserver.fostersin.com.sg
203.127.93.51	A	mail.murex.com.sg
203.127.94.2	PTR	mail.diversitec.com.sg
203.127.94.2	A	ddpl.diversitec.com.sg
203.127.94.5	A+PTR	ns1.sapura.com.sg
203.127.94.6	A	store.sapura.com.sg
203.127.94.10	PTR	mailblast.sapuraglobal.com.sg
203.127.94.20	A+PTR	dns1.sapuraglobal.com
203.127.94.22	PTR	mx.sapuraglobal.com
203.127.95.166	A+PTR	sgmail01.unisemgroup.com
203.127.95.216	A	mail.wiig.com.sg
203.127.95.242	A+PTR	mail.fullmark.com.sg
203.127.95.242	A	fullmark.com.sg
203.127.95.242	A	webmail.fullmark.com.sg
203.127.95.243	A	ns1.fullmark.com.sg
203.127.95.245	PTR	smtp.fullmark.com.sg
203.127.95.245	A	everleadofficesupplies.com
203.127.95.245	A	fullmark.com