Robtex

Up: 125.234.240.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 125.234.240.0/23
Down right: 125.234.242.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
125.234.240.26	PTR	125.234.240.26.hcm.viettel.vn
125.234.240.34	PTR	binhphuoc.edu.vn
125.234.240.34	A	vanban.binhphuoc.edu.vn
125.234.240.53	PTR	125.234.240.53.hcm.viettel.vn
125.234.240.78	PTR	125.234.240.78.hcm.viettel.vn
125.234.240.78	A	tracuudiem.haugiang.edu.vn
125.234.240.102	PTR	125.234.240.102.hcm.viettel.vn
125.234.240.106	PTR	125.234.240.106.hcm.viettel.vn
125.234.240.106	A	angiang.edu.vn
125.234.240.106	A	sogddt.angiang.gov.vn