Robtex

Up: 61.63.64.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 61.63.64.0/23
Down right: 61.63.66.0/23

IP	Type	Hostname
61.63.64.53	A+PTR	61-63-64-host53.kbtelecom.net.tw
61.63.64.252	PTR	61-63-64-host252.kbtelecom.net.tw
61.63.65.13	A+PTR	61-63-65-host13.kbtelecom.net.tw
61.63.65.23	A+PTR	61-63-65-host23.kbtelecom.net.tw
61.63.65.94	A+PTR	61-63-65-host94.kbtelecom.net.tw
61.63.65.128	A+PTR	61-63-65-host128.kbtelecom.net.tw
61.63.65.165	A+PTR	61-63-65-host165.kbtelecom.net.tw
61.63.65.198	A+PTR	61-63-65-host198.kbtelecom.net.tw
61.63.65.249	A+PTR	61-63-65-host249.kbtelecom.net.tw
61.63.67.8	PTR	61-63-67-host8.kbtelecom.net.tw
61.63.67.202	A+PTR	61-63-67-host202.kbtelecom.net.tw