Robtex

Up: 203.127.64.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 203.127.68.0/23
Down right: 203.127.70.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.127.68.168	PTR	mx18.corporate.com.sg
203.127.70.40	A	mail.nhg.com.sg
203.127.71.6	A+PTR	mail.smedvig.com.sg
203.127.71.104	A	dns2.pmlink.com.sg
203.127.71.104	A	dns2.cpgreen.com
203.127.71.104	A	dns2.indeco-consortium.com.sg