Robtex

Up: 115.79.80.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 115.79.80.0/24
Down right: 115.79.81.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
115.79.80.19	PTR	adsl.viettel.vn
115.79.80.19	A	ns1.tenten.vn.sucohuephuong.com
115.79.80.19	A	mail.sucohuephuong.com
115.79.80.208	PTR	adsl.viettel.vn
115.79.81.40	PTR	adsl.viettel.vn
115.79.81.237	PTR	adsl.viettel.vn