Robtex

Up: 61.30.0.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 61.30.4.0/23
Down right: 61.30.6.0/23

IP	Type	Hostname
61.30.6.2	A+PTR	61-30-6-2.dynamic.tfn.net.tw
61.30.7.24	A+PTR	61-30-7-24.dynamic.tfn.net.tw
61.30.7.27	A+PTR	61-30-7-27.dynamic.tfn.net.tw
61.30.7.34	A+PTR	61-30-7-34.dynamic.tfn.net.tw
61.30.7.71	A+PTR	61-30-7-71.dynamic.tfn.net.tw
61.30.7.85	PTR	61-30-7-85.dynamic.tfn.net.tw
61.30.7.90	A+PTR	61-30-7-90.dynamic.tfn.net.tw
61.30.7.132	A+PTR	61-30-7-132.dynamic.tfn.net.tw
61.30.7.163	A+PTR	61-30-7-163.dynamic.tfn.net.tw
61.30.7.214	A+PTR	61-30-7-214.dynamic.tfn.net.tw
61.30.7.255	PTR	61-30-7-255.dynamic.tfn.net.tw