Robtex

Up: 138.19.112.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 138.19.120.0/22
Down right: 138.19.124.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
138.19.120.49	A+PTR	138019120049.ctinets.com
138.19.120.146	A+PTR	138019120146.ctinets.com
138.19.120.242	A+PTR	138019120242.ctinets.com
138.19.120.242	A	nearko.com
138.19.121.4	A+PTR	138019121004.ctinets.com
138.19.122.41	A+PTR	138019122041.ctinets.com
138.19.122.200	A+PTR	138019122200.ctinets.com
138.19.122.201	A+PTR	138019122201.ctinets.com
138.19.122.201	A	hkbn6.1st.airforce
138.19.123.52	A+PTR	138019123052.ctinets.com
138.19.123.52	A	hkbn4.ddns.press
138.19.123.179	A+PTR	138019123179.ctinets.com
138.19.123.221	A+PTR	138019123221.ctinets.com
138.19.123.221	A	hkbnonline.onlineqitv-ns.xyz
138.19.124.111	A+PTR	138019124111.ctinets.com
138.19.124.158	A+PTR	138019124158.ctinets.com
138.19.124.158	A	uwantishare.com
138.19.124.251	A+PTR	138019124251.ctinets.com
138.19.125.27	A	gundam.pgafan.net
138.19.125.66	A+PTR	138019125066.ctinets.com
138.19.125.66	A	hongkonglamma.com
138.19.125.95	A+PTR	138019125095.ctinets.com
138.19.125.251	A+PTR	138019125251.ctinets.com
138.19.126.27	A+PTR	138019126027.ctinets.com
138.19.126.27	A	owlairsoft.com
138.19.126.40	A+PTR	138019126040.ctinets.com
138.19.126.65	A+PTR	138019126065.ctinets.com
138.19.126.65	A	dser.dyndns.org
138.19.126.74	A+PTR	138019126074.ctinets.com
138.19.126.74	A	wafflingdean.com
138.19.126.74	A	simondean.com
138.19.126.112	A+PTR	138019126112.ctinets.com
138.19.126.112	A	raymondyu.synology.me
138.19.126.181	A+PTR	138019126181.ctinets.com
138.19.126.181	A	mail.abest.hk
138.19.126.181	A	ns50.abest.hk
138.19.126.232	A	mail.qloolp.com
138.19.127.53	A+PTR	138019127053.ctinets.com
138.19.127.53	A	qloolp.com
138.19.127.142	A+PTR	138019127142.ctinets.com
138.19.127.251	A+PTR	138019127251.ctinets.com
138.19.127.251	A	model-i.com