Robtex

Up: 203.142.32.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 203.142.36.0/23
Down right: 203.142.38.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.142.36.34	PTR	mail2.pah.com.my
203.142.36.34	A	mail.pah.com.my
203.142.36.34	A	pahmail.pah.com.my
203.142.36.52	A	mail-server.handalindah.com.my
203.142.36.98	A+PTR	ext.matc.minaik.com
203.142.36.100	A+PTR	mail.matc.minaik.com
203.142.36.210	A	hawktayar.com
203.142.36.242	A	mail3.pacificofats.com
203.142.37.72	PTR	mail2.hitachi-cable.com.my
203.142.37.106	A+PTR	mail.qdos.com.my
203.142.38.113	A+PTR	kp.venture.com.sg
203.142.38.210	PTR	crux.abu.org.my
203.142.38.210	A	mail.abu.org.my
203.142.38.210	A	web2.abu.org.my
203.142.38.213	A	mlc.abu.org.my
203.142.38.213	A	mlc-online.abu.org.my
203.142.38.214	A	tux.abu.org.my