Robtex

Up: 203.80.88.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 203.80.92.0/23
Down right: 203.80.94.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.80.94.2	A+PTR	203080094002.ctinets.com
203.80.94.4	PTR	203080094004.ctinets.com
203.80.94.41	A+PTR	203080094041.ctinets.com
203.80.94.41	A	mx1.jackylin.com
203.80.94.41	A	luenfungpets.com
203.80.94.42	PTR	203080094042.ctinets.com
203.80.94.42	A	mx1.tetra-asia.com.hk
203.80.94.43	PTR	203080094043.ctinets.com
203.80.94.44	PTR	203080094044.ctinets.com
203.80.94.44	A	smtp.sognotech.com
203.80.94.44	A	smtp.lars-ivan.com
203.80.94.49	A+PTR	203080094049.ctinets.com
203.80.94.49	A	ltyschool.edu.hk
203.80.94.49	A	www.ltyschool.edu.hk
203.80.94.50	PTR	203080094050.ctinets.com
203.80.94.50	A	moodle.ltyschool.edu.hk
203.80.94.53	A	mx2.tetra-asia.com.hk
203.80.94.54	PTR	203080094054.static.ctinets.com
203.80.94.54	A	203080094054.ctinets.com
203.80.94.54	A	mail2.ltyschool.edu.hk
203.80.94.55	A+PTR	203080094055.ctinets.com
203.80.94.61	A+PTR	203080094061.ctinets.com
203.80.94.61	A	ns2.ltyschool.edu.hk
203.80.94.71	A	203080094071.ctinets.com
203.80.94.85	A	203080094085.ctinets.com
203.80.94.87	A	203080094087.ctinets.com
203.80.94.100	A+PTR	203080094100.ctinets.com
203.80.94.100	A	mail1.mobicon.com
203.80.94.101	A	203080094101.ctinets.com
203.80.94.101	A	mail2.mobicon.com
203.80.94.105	A	www.milliard.com.hk
203.80.94.119	A+PTR	203080094119.ctinets.com
203.80.94.119	A	labelmasters.com
203.80.94.125	PTR	203080094125.ctinets.com
203.80.94.125	A	www.pvcstrategy.com
203.80.94.125	A	pvcstrategy.com
203.80.94.137	A	203080094137.ctinets.com
203.80.94.155	A+PTR	203080094155.ctinets.com
203.80.94.155	A	luckyshoeshk.com
203.80.94.156	PTR	203080094156.ctinets.com
203.80.94.156	A	unionshoes.com
203.80.94.156	A	mail.ldfootwear.com
203.80.94.161	PTR	203080094161.ctinets.com
203.80.94.162	A	ns2.bigdatahongkong.com
203.80.94.189	A	203080094189.ctinets.com
203.80.94.195	PTR	203080094195.ctinets.com
203.80.94.195	A	wusichong.edu.hk
203.80.94.241	PTR	mail.chaseglory.com.hk
203.80.94.241	A	chaseglory.com.hk
203.80.94.253	A	203080094253.ctinets.com
203.80.95.98	A	mgrtheband.com