Robtex

Up: 203.81.42.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 203.81.43.0/25
Down right: 203.81.43.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.81.43.50	A	prmarine.com.sg
203.81.43.51	PTR	elite.web-economy.com
203.81.43.52	PTR	exodus2.netdns.net
203.81.43.52	A	bbg.co.nz
203.81.43.55	PTR	mail.ieqglobal.com
203.81.43.58	PTR	ns2.netdns.net
203.81.43.59	PTR	smtp.clients.netdns.net
203.81.43.93	A	stinis.com.sg
203.81.43.93	A	ulfpettersson.com
203.81.43.93	A	pictureworks.sg
203.81.43.148	A	vcs.imajet.net
203.81.43.150	A+PTR	corpvideo.pacific.net.sg
203.81.43.196	PTR	www.vietnamworks.com
203.81.43.196	A	vnprojectjob.com
203.81.43.197	PTR	edu.vietnamworks.com
203.81.43.239	PTR	smtp.sg.gs
203.81.43.241	PTR	sganime.com