Robtex

Up: 203.80.224.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 203.80.224.0/23
Down right: 203.80.226.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.80.224.1	PTR	203080224001.static.ctinets.com
203.80.224.1	A	www.ectake.com
203.80.224.11	A+PTR	203080224011.static.ctinets.com
203.80.224.11	A	mail.ectake.com
203.80.224.17	A	mail.grown-up.net
203.80.224.34	A+PTR	203080224034.static.ctinets.com
203.80.224.34	A	hydro-usl.com
203.80.224.34	A	mail.hydro-usl.com
203.80.224.44	A+PTR	203080224044.static.ctinets.com
203.80.224.48	PTR	203080224048.static.ctinets.com
203.80.224.50	A+PTR	antispam02.pkf-hk.com
203.80.224.50	A	mailtest.ecil.com.hk
203.80.224.50	A	mailscan02.hlleung.com
203.80.224.51	A	mail.pkf-hk.com
203.80.224.53	PTR	mail.ecil.com.hk
203.80.224.53	A	ecil.com.hk
203.80.224.55	PTR	203080224055.static.ctinets.com
203.80.224.55	A	ns6.pkf-hk.com
203.80.224.55	A	ns8.pkf-hk.com
203.80.224.56	A+PTR	203080224056.static.ctinets.com
203.80.224.56	A	ns5.pkf-hk.com
203.80.224.56	A	ns7.pkf-hk.com
203.80.224.60	PTR	203080224060.static.ctinets.com
203.80.224.71	PTR	203080224071.static.ctinets.com
203.80.224.71	A	wide-sky.org
203.80.224.71	A	eco-tek.com
203.80.224.150	A+PTR	mail2.kumshing.com.hk
203.80.224.150	A	mail2.wkfcharity.org
203.80.224.150	A	mail2.kumkei.com.hk
203.80.224.152	A+PTR	203080224152.static.ctinets.com
203.80.224.152	A	www.kumshing.com.hk
203.80.224.152	A	www.kumshing.com
203.80.224.153	A	www.kima.com.hk
203.80.224.162	A+PTR	webmail2.sammart.com.hk
203.80.224.162	A	ns2.sammart.com.hk
203.80.224.176	A+PTR	203080224176.static.ctinets.com
203.80.224.177	PTR	203080224177.static.ctinets.com
203.80.224.177	A	beyondartcenter.com
203.80.224.177	A	yeungchiyu.com
203.80.224.178	PTR	203080224178.static.ctinets.com
203.80.224.178	A	mail.chualamfanclub.com
203.80.224.181	A	chualamscolorfulworld.com
203.80.224.181	A	www.chualamscolorfulworld.com
203.80.224.183	A+PTR	203080224183.static.ctinets.com
203.80.224.183	A	w-photobook.com
203.80.224.188	PTR	203080224188.static.ctinets.com
203.80.224.188	A	find-gmt.com
203.80.224.192	A+PTR	203080224192.static.ctinets.com
203.80.224.193	PTR	203080224193.static.ctinets.com
203.80.224.193	A	3388.co.za
203.80.224.194	PTR	203080224194.static.ctinets.com
203.80.224.194	A	irene-dramatic-society.co.za
203.80.224.194	A	talydata.com
203.80.224.195	PTR	203080224195.static.ctinets.com
203.80.224.195	A	3388.co.za
203.80.224.196	PTR	203080224196.static.ctinets.com
203.80.224.196	A	ns02.taly.net
203.80.224.196	A	talypayroll.com
203.80.224.197	PTR	203080224197.static.ctinets.com
203.80.224.210	A	203080224210.static.ctinets.com
203.80.224.211	PTR	203080224211.static.ctinets.com
203.80.224.211	A	kerio.mwgroup.hk
203.80.224.218	PTR	203080224218.static.ctinets.com
203.80.224.218	A	tacir01.demo.mediaworld.com.hk
203.80.224.236	A+PTR	203080224236.static.ctinets.com
203.80.224.236	A	*.caehkltd.com.hk
203.80.224.236	A	caehkltd.com.hk
203.80.225.94	PTR	203080225094.static.ctinets.com
203.80.225.94	A	www.hkxfoundation.org
203.80.225.94	A	hkxtech.com
203.80.225.222	A+PTR	203080225222.static.ctinets.com
203.80.225.241	PTR	20380225241.montyindustry.com
203.80.225.241	A	a.mx.montygroup.com
203.80.225.241	A	mailgw.montyindustry.com
203.80.225.242	A+PTR	203080225242.static.ctinets.com
203.80.225.242	A	mailhk.montyindustry.com
203.80.225.244	A+PTR	20380225244.montyindustry.com
203.80.225.244	A	*.montyindustry.com
203.80.225.244	A	montyindustry.com
203.80.225.248	PTR	203080225248.static.ctinets.com
203.80.226.5	PTR	203080226005.static.ctinets.com
203.80.226.5	A	globecreative.net
203.80.226.27	A	203080226027.static.ctinets.com
203.80.226.31	PTR	203080226031.static.ctinets.com
203.80.226.32	A	203080226032.static.ctinets.com
203.80.226.40	A+PTR	203080226040.static.ctinets.com
203.80.226.50	A	203080226050.static.ctinets.com
203.80.226.97	A+PTR	203080226097.static.ctinets.com
203.80.226.97	A	enecomponent.com
203.80.226.100	A+PTR	mail.pioneer-tech.com
203.80.226.100	A	pioneer-tech.dyndns.tv
203.80.226.100	A	domino.pioneer-tech.com
203.80.226.178	A	203080226178.static.ctinets.com
203.80.226.234	PTR	203080226234.static.ctinets.com
203.80.226.234	A	matteriosftp.com
203.80.226.250	PTR	203080226250.static.ctinets.com
203.80.226.250	A	mail2.joia.com.hk
203.80.226.250	A	mail2.bowingfty.com
203.80.227.18	PTR	203080227018.static.ctinets.com
203.80.227.18	A	mail.siuyinwai.com
203.80.227.22	A	203080227022.static.ctinets.com
203.80.227.133	PTR	203080227133.static.ctinets.com
203.80.227.133	A	vctl-tech.com
203.80.227.136	A	i-lasso.com
203.80.227.136	A	licpet.com