Robtex

Up: 120.72.16.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 120.72.16.0/23
Down right: 120.72.18.0/23

IP	Type	Hostname
120.72.16.4	A	r12.dctechmicro.com
120.72.16.4	A	ns1.r12.dctechmicro.com
120.72.16.20	A	r12.dctechmicro.com
120.72.16.20	A	ns2.r12.dctechmicro.com
120.72.16.21	A	smtp.r12.dctechmicro.com
120.72.16.34	A	marlins.nddu.edu.ph
120.72.16.34	A	nddu.edu.ph
120.72.16.35	A	skipjack.nddu.edu.ph
120.72.16.48	A	sulat.nddu.edu.ph
120.72.17.44	PTR	mail.citraminagroup.net
120.72.17.44	A	citraminagroup.net
120.72.18.52	A	viajeromotorsales.com
120.72.18.85	A	tatehpremiumfeeds.com
120.72.19.8	A	speedtest-gsc-svr-n.dctechmicro.com