Robtex

Up: 203.80.242.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 203.80.242.0/25
Down right: 203.80.242.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.80.242.3	A+PTR	203080242003.static.ctinets.com
203.80.242.4	A+PTR	203080242004.static.ctinets.com
203.80.242.6	A+PTR	203080242006.static.ctinets.com
203.80.242.6	A	webmail.asiasoft.hk
203.80.242.6	A	mail.asiasoft.hk
203.80.242.34	A	203080242034.static.ctinets.com
203.80.242.35	A	vinflair.com.cn
203.80.242.90	A+PTR	203080242090.static.ctinets.com
203.80.242.133	A+PTR	203080242133.static.ctinets.com
203.80.242.133	A	yanfook.org.hk
203.80.242.133	A	www.yanfook.org.hk
203.80.242.137	A	203080242137.static.ctinets.com
203.80.242.145	A	ccexchange.cc-cwb-aecom.com
203.80.242.145	A	cc-cwb-aecom.com
203.80.242.160	A+PTR	203080242160.static.ctinets.com
203.80.242.161	A	203080242161.static.ctinets.com
203.80.242.162	A+PTR	203080242162.static.ctinets.com
203.80.242.162	A	mail.ogprinting.com.hk
203.80.242.164	PTR	203080242164.static.ctinets.com
203.80.242.164	A	mail.recruitonline.com
203.80.242.164	A	mail.cinmedia.com
203.80.242.167	A	lionrockgrp.com
203.80.242.170	A+PTR	203080242170.static.ctinets.com
203.80.242.170	A	mail.cosprinters.com
203.80.242.170	A	mail.apol.com.hk
203.80.242.171	A+PTR	203080242171.static.ctinets.com
203.80.242.171	A	mail.1010printing.com
203.80.242.175	A	203080242175.static.ctinets.com
203.80.242.177	PTR	203080242177.static.ctinets.com
203.80.242.179	A	203080242179.static.ctinets.com
203.80.242.182	A	chiwrite.eclass.hk
203.80.242.182	A	geometry.eclass.hk
203.80.242.185	A+PTR	203080242185.static.ctinets.com
203.80.242.185	A	ns2.broadlearning.com
203.80.242.186	A+PTR	203080242186.static.ctinets.com
203.80.242.186	A	olta.org.hk
203.80.242.222	PTR	203080242222.static.ctinets.com
203.80.242.222	A	mail.yensheng.com
203.80.242.222	A	mail.yen-sheng.com
203.80.242.225	A	mail.tfhbml.com.hk
203.80.242.231	A+PTR	203080242231.static.ctinets.com
203.80.242.231	A	mailgateway.tfhbml.com.hk
203.80.242.243	PTR	203080242243.static.ctinets.com
203.80.242.243	A	mx01.compcomm.hk
203.80.242.246	PTR	203080242246.static.ctinets.com
203.80.242.246	A	mx02.compcomm.hk
203.80.242.248	A	ns1.comcom.hk