Robtex

Up: 138.19.64.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 138.19.64.0/21
Down right: 138.19.72.0/21
(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