Robtex

Up: 42.116.21.0/24
Can't show all results, try to descend to a more specific CIDR
Down left: 42.116.21.0/26
Down right: 42.116.21.64/26
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
42.116.21.4	PTR	mx03.stbtech.com.vn
42.116.21.6	PTR	mail.stbtech.asia
42.116.21.16	A	truyentranhso.com
42.116.21.16	A	estorepayment.com
42.116.21.16	A	trao.doi.phu.nu
42.116.21.69	PTR	mail2.eximbank.com.vn
42.116.21.75	A	eximbank.vn