Robtex

Up: 203.80.247.0/24
Can't show all results, try to descend to a more specific CIDR
Down left: 203.80.247.128/26
Down right: 203.80.247.192/26
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.80.247.164	A	mail.seniorcare.com.hk
203.80.247.174	A+PTR	203080247174.static.ctinets.com
203.80.247.189	A+PTR	corp5.worlddisclosure.com
203.80.247.189	A	mail.irasia.com.hk
203.80.247.189	A	mail.irav.com