Robtex

Up: 116.12.212.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 116.12.213.0/25
Down right: 116.12.213.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
116.12.213.109	A+PTR	server.cst.asia
116.12.213.114	A+PTR	smtp.oww.com.sg
116.12.213.114	A	oww.picomail.net
116.12.213.209	A+PTR	mail.creaworld.com.sg
116.12.213.209	A	mail.firsteworld.com
116.12.213.209	A	mail.whyze.com.sg