Robtex

Up: 61.16.0.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 61.16.0.0/22
Down right: 61.16.4.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
61.16.1.2	A+PTR	asav.aceisansystems.com
61.16.1.2	A	bmx3.netpluz.asia
61.16.1.2	A	mx.netpluz.asia
61.16.1.3	A	mail.netpluz.asia
61.16.1.5	PTR	bsmtp-in.netpluz.asia
61.16.1.11	A+PTR	email2.netpluz.asia
61.16.2.19	A+PTR	psmtp-inbk.netpluz.asia
61.16.2.19	A+PTR	bmx2.netpluz.asia
61.16.2.19	A	pmx2.netpluz.asia
61.16.3.34	A+PTR	asav.htsingapore.com.sg
61.16.3.34	A	asav.acesian.com
61.16.3.34	A	mxbackup.kraftw5rkz.com
61.16.3.35	PTR	mail.aceisansystems.com
61.16.3.35	PTR	pmail1.netpluz.asia
61.16.3.40	A+PTR	mail.radhaexports.com
61.16.3.42	PTR	mail.premiersoft.com.sg
61.16.3.42	A	pmx1.netpluz.asia
61.16.3.43	A	mail.eleos.com
61.16.3.99	A	mybas.cloud
61.16.3.121	A	socialy5.sg
61.16.3.165	A+PTR	www.trainingvision.com.sg
61.16.3.221	PTR	mail.superbtrax.com
61.16.3.222	PTR	mail.cmgt.com.sg
61.16.7.99	PTR	mdaemon.hhp.com.sg