Robtex

Up: 138.19.64.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 138.19.64.0/20
Down right: 138.19.80.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
138.19.64.42	A+PTR	138019064042.ctinets.com
138.19.64.42	A	ivanyu-com.softether.net
138.19.64.67	A+PTR	138019064067.ctinets.com
138.19.64.67	A	cheungking.com
138.19.64.139	A+PTR	138019064139.ctinets.com
138.19.64.139	A	ckf.myqnapcloud.com
138.19.65.26	A+PTR	138019065026.ctinets.com
138.19.65.26	A	mail.wintech-studio.com
138.19.65.26	A	wintech-studio.com
138.19.65.49	PTR	138019065049.ctinets.com
138.19.65.49	A	mail.christinagary.com
138.19.66.213	A+PTR	138019066213.ctinets.com
138.19.67.191	A+PTR	138019067191.ctinets.com
138.19.67.191	A	bbgage.com
138.19.67.191	A	hkbeanseeker.com
138.19.67.234	A+PTR	138019067234.ctinets.com
138.19.67.234	A	cheungking.com
138.19.67.237	A+PTR	138019067237.ctinets.com
138.19.67.237	A	wongs.gotdns.com
138.19.68.232	A+PTR	138019068232.ctinets.com
138.19.68.232	A	www.ipbase.synology.me
138.19.68.232	A	ipbase.synology.me
138.19.71.153	A+PTR	138019071153.ctinets.com
138.19.72.47	A+PTR	138019072047.ctinets.com
138.19.72.47	A	go-to.ga
138.19.73.31	A+PTR	138019073031.ctinets.com
138.19.73.51	A+PTR	138019073051.ctinets.com
138.19.73.51	A	krysoncentonialsha.com
138.19.73.68	A+PTR	138019073068.ctinets.com
138.19.73.68	A	rohan-go.com
138.19.73.188	A+PTR	138019073188.ctinets.com
138.19.74.153	A+PTR	138019074153.ctinets.com
138.19.74.153	A	stingelomboatto.com
138.19.75.198	PTR	138019075198.ctinets.com
138.19.75.198	A	mail3.moresys.hk
138.19.75.198	A	ns3.moresys.hk
138.19.76.228	A+PTR	138019076228.ctinets.com
138.19.77.129	A+PTR	138019077129.ctinets.com
138.19.77.182	A+PTR	138019077182.ctinets.com
138.19.77.232	A+PTR	138019077232.ctinets.com
138.19.77.232	A	gofhk.com
138.19.78.61	A+PTR	138019078061.ctinets.com
138.19.78.61	A	leo880816.ddns.net
138.19.78.118	A+PTR	138019078118.ctinets.com
138.19.78.118	A	jar-1.no-ip.net
138.19.78.148	A+PTR	138019078148.ctinets.com
138.19.78.148	A	appletreecentre.com
138.19.78.148	A	mail.appletreecentre.com
138.19.78.231	A+PTR	138019078231.ctinets.com
138.19.79.121	A+PTR	138019079121.ctinets.com
138.19.79.208	PTR	138019079208.ctinets.com
138.19.79.230	A+PTR	138019079230.ctinets.com
138.19.79.230	A	jc02.net
138.19.80.44	A+PTR	138019080044.ctinets.com
138.19.80.44	A	nouveeplabsynestr.com
138.19.80.119	A+PTR	138019080119.ctinets.com
138.19.80.119	A	proticongemocomm.com
138.19.83.2	A+PTR	138019083002.ctinets.com
138.19.83.2	A	steffiwinson.com
138.19.83.2	A	www.steffiwinson.com
138.19.84.28	A+PTR	138019084028.ctinets.com
138.19.84.28	A	twinsworld.hk
138.19.85.91	A+PTR	138019085091.ctinets.com
138.19.85.91	A	caatraining.org
138.19.85.91	A	ononsense.com
138.19.85.100	A+PTR	138019085100.ctinets.com
138.19.85.100	A	beautymoment.net
138.19.85.150	A+PTR	138019085150.ctinets.com
138.19.85.159	A	*.irendezvous.net
138.19.86.64	PTR	138019086064.ctinets.com
138.19.86.180	A+PTR	138019086180.ctinets.com
138.19.86.180	A	thetrapexpert.com
138.19.86.248	A+PTR	138019086248.ctinets.com
138.19.86.248	A	diverx.myqnapcloud.com
138.19.87.37	A	ddns.dondon.info
138.19.87.124	A+PTR	138019087124.ctinets.com
138.19.87.124	A	jimmytse.synology.me
138.19.87.152	A+PTR	138019087152.ctinets.com
138.19.89.197	A+PTR	138019089197.ctinets.com
138.19.90.37	A+PTR	138019090037.ctinets.com
138.19.90.58	A+PTR	138019090058.ctinets.com
138.19.90.58	A	andylkl.no-ip.biz
138.19.91.101	A+PTR	138019091101.ctinets.com
138.19.91.214	A+PTR	138019091214.ctinets.com
138.19.92.40	A+PTR	138019092040.ctinets.com
138.19.92.40	A	rfic-lab.com
138.19.92.71	A+PTR	138019092071.ctinets.com
138.19.92.93	A+PTR	138019092093.ctinets.com
138.19.92.93	A	www.alankwok.dsmynas.com
138.19.92.93	A	alankwok.dsmynas.com
138.19.92.106	A+PTR	138019092106.ctinets.com
138.19.92.188	A+PTR	138019092188.ctinets.com
138.19.92.188	A	kingofcoders.com
138.19.92.188	A	www.kingofcoders.com
138.19.93.214	A+PTR	138019093214.ctinets.com
138.19.94.148	A+PTR	138019094148.ctinets.com
138.19.95.68	A+PTR	138019095068.ctinets.com