Robtex

Up: 61.244.50.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 61.244.51.0/25
Down right: 61.244.51.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
61.244.51.7	A+PTR	061244051007.static.ctinets.com
61.244.51.14	A+PTR	061244051014.static.ctinets.com
61.244.51.14	A	xdjy.org
61.244.51.14	A	xiandaijiaoyu.org
61.244.51.19	PTR	061244051019.static.ctinets.com
61.244.51.19	A	kckhk.com
61.244.51.27	A+PTR	061244051027.static.ctinets.com
61.244.51.34	A+PTR	mail.kesford.com.hk
61.244.51.56	A+PTR	061244051056.static.ctinets.com
61.244.51.56	A	dortak.com
61.244.51.64	A+PTR	061244051064.static.ctinets.com
61.244.51.73	PTR	061244051073.static.ctinets.com
61.244.51.79	A+PTR	061244051079.static.ctinets.com
61.244.51.104	A+PTR	061244051104.static.ctinets.com
61.244.51.114	A	mail.luenkei.com
61.244.51.142	A	mail.jamescoltd.com
61.244.51.151	A+PTR	061244051151.static.ctinets.com
61.244.51.154	A+PTR	061244051154.static.ctinets.com
61.244.51.170	A+PTR	061244051170.static.ctinets.com
61.244.51.178	A+PTR	061244051178.static.ctinets.com
61.244.51.193	A+PTR	061244051193.static.ctinets.com
61.244.51.200	A+PTR	061244051200.static.ctinets.com
61.244.51.200	A	r2hobbyjp.com
61.244.51.200	A	www.rvminc.net
61.244.51.202	PTR	061244051202.static.ctinets.com
61.244.51.202	A	mail.topgain.com.hk
61.244.51.202	A	topgain.com.hk
61.244.51.238	A	mail.328link.com
61.244.51.238	A	www.328link.com
61.244.51.238	A	dns1.328link.com
61.244.51.247	A+PTR	061244051247.static.ctinets.com