Robtex

Up: 203.121.40.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 203.121.42.0/24
Down right: 203.121.43.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.121.42.3	PTR	lhkl.leehishammuddin.com.my
203.121.42.16	A	my-lh-timedns.hubline.com
203.121.43.25	A	mx01.cepsi2018kl.org
203.121.43.25	A	tnbmxlb01.singlebuyer.com.my
203.121.43.25	A	tnbmxlb01.gso.org.my
203.121.43.32	A	www.tnbit.com.my
203.121.43.32	A	tnbit.com.my
203.121.43.43	A	webmail.tnb.com.my.cdn.cloudflare.net
203.121.43.43	A	autodiscover.tnb.com.my
203.121.43.66	A	www.pois.com.my
203.121.43.135	A	ns1.u.com.my
203.121.43.192	A	e-mrc.com.my
203.121.43.202	A	vpn.mrcb.com.my
203.121.43.214	PTR	mx1.heitech.com.my
203.121.43.215	PTR	mx2.heitech.com.my