Robtex

Up: 211.242.192.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 211.242.224.0/20
Down right: 211.242.240.0/20

IP	Type	Hostname
211.242.224.10	PTR	kmail.obigo.com
211.242.224.10	PTR	mail.obigo.com
211.242.224.53	A	yellow.3glab.net
211.242.226.186	A	xn--z69a950bcbz73m.com
211.242.226.186	A	sungpoongcorp.com
211.242.233.248	A	chsto7.com