Robtex

Up: 203.203.224.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 203.203.224.0/21
Down right: 203.203.232.0/21

IP	Type	Hostname
203.203.226.243	PTR	203-203-226-243.tycable.com.tw
203.203.232.242	PTR	host-203-203-232-242.dynamic.kbtelecom.net
203.203.232.243	A+PTR	host-203-203-232-243.dynamic.kbtelecom.net
203.203.234.115	A+PTR	host-203-203-234-115.dynamic.kbtelecom.net
203.203.234.163	A+PTR	host-203-203-234-163.dynamic.kbtelecom.net
203.203.234.177	A+PTR	host-203-203-234-177.dynamic.kbtelecom.net
203.203.234.179	A+PTR	host-203-203-234-179.dynamic.kbtelecom.net
203.203.234.240	A+PTR	host-203-203-234-240.dynamic.kbtelecom.net
203.203.234.242	A+PTR	host-203-203-234-242.dynamic.kbtelecom.net
203.203.234.243	A+PTR	host-203-203-234-243.dynamic.kbtelecom.net
203.203.234.247	A	host-203-203-234-247.dynamic.kbtelecom.net
203.203.235.243	A+PTR	host-203-203-235-243.dynamic.kbtelecom.net
203.203.238.179	A+PTR	host-203-203-238-179.dynamic.kbtelecom.net