Robtex

Up: 27.72.144.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 27.72.144.0/24
Down right: 27.72.145.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
27.72.144.30	PTR	localhost
27.72.144.30	A	www.uptek.vn
27.72.144.30	A	forever68.com
27.72.144.89	PTR	localhost
27.72.144.89	A	diasoft-hn.com
27.72.144.89	A	comsuon.com
27.72.144.121	A	duykien99.com
27.72.144.127	PTR	localhost
27.72.144.133	PTR	localhost
27.72.144.133	A	ketoanaz.net
27.72.144.133	A	mail.mikhaiin.com
27.72.144.140	PTR	localhost
27.72.144.140	A	xexuyenviet.com
27.72.144.147	PTR	localhost
27.72.144.149	PTR	localhost
27.72.144.149	A	daykemtot.com
27.72.144.180	PTR	localhost
27.72.144.180	A	vsolution.vn
27.72.144.180	A	mail.vsolution.vn
27.72.145.99	A	plastic-edu.com
27.72.145.99	A	baotri365.vn
27.72.145.99	A	dinhvigiadinh.com