Robtex

Up: 123.110.80.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 123.110.80.0/22
Down right: 123.110.84.0/22

IP	Type	Hostname
123.110.80.42	PTR	123-110-80-42.sh.dynamic.tbcnet.net.tw
123.110.80.43	PTR	123-110-80-43.sh.dynamic.tbcnet.net.tw
123.110.80.64	PTR	123-110-80-64.sh.dynamic.tbcnet.net.tw
123.110.80.129	PTR	123-110-80-129.sh.dynamic.tbcnet.net.tw
123.110.81.16	PTR	123-110-81-16.sh.dy.tbcnet.net.tw
123.110.81.58	PTR	123-110-81-58.sh.dy.tbcnet.net.tw
123.110.81.136	PTR	123-110-81-136.sh.dy.tbcnet.net.tw
123.110.81.178	PTR	123-110-81-178.sh.dy.tbcnet.net.tw
123.110.81.210	PTR	123-110-81-210.sh.dy.tbcnet.net.tw
123.110.81.248	PTR	123-110-81-248.sh.dy.tbcnet.net.tw
123.110.82.25	PTR	123-110-82-25.sh.dynamic.tbcnet.net.tw
123.110.82.98	PTR	123-110-82-98.sh.dynamic.tbcnet.net.tw
123.110.82.168	PTR	123-110-82-168.sh.dynamic.tbcnet.net.tw
123.110.82.208	PTR	123-110-82-208.sh.dynamic.tbcnet.net.tw
123.110.82.219	PTR	123-110-82-219.sh.dynamic.tbcnet.net.tw
123.110.82.224	PTR	123-110-82-224.sh.dynamic.tbcnet.net.tw
123.110.82.227	PTR	123-110-82-227.sh.dynamic.tbcnet.net.tw
123.110.83.3	PTR	123-110-83-3.sh.dynamic.tbcnet.net.tw
123.110.84.113	PTR	123-110-84-113.sh.dynamic.tbcnet.net.tw
123.110.84.121	PTR	123-110-84-121.sh.dynamic.tbcnet.net.tw
123.110.85.25	PTR	123-110-85-25.sh.dynamic.tbcnet.net.tw
123.110.85.112	PTR	123-110-85-112.sh.dynamic.tbcnet.net.tw
123.110.85.131	PTR	123-110-85-131.sh.dynamic.tbcnet.net.tw
123.110.85.187	PTR	123-110-85-187.sh.dynamic.tbcnet.net.tw
123.110.85.253	A	mail.ta-hsia.com
123.110.86.34	PTR	123-110-86-34.sh.dynamic.tbcnet.net.tw
123.110.86.144	PTR	123-110-86-144.sh.dynamic.tbcnet.net.tw
123.110.86.169	PTR	123-110-86-169.sh.dynamic.tbcnet.net.tw
123.110.86.195	PTR	123-110-86-195.sh.dynamic.tbcnet.net.tw
123.110.86.218	PTR	123-110-86-218.sh.dynamic.tbcnet.net.tw
123.110.86.240	PTR	123-110-86-240.sh.dynamic.tbcnet.net.tw
123.110.86.241	PTR	123-110-86-241.sh.dynamic.tbcnet.net.tw
123.110.86.250	PTR	123-110-86-250.sh.dynamic.tbcnet.net.tw
123.110.87.19	PTR	123-110-87-19.sh.dynamic.tbcnet.net.tw
123.110.87.49	PTR	123-110-87-49.sh.dynamic.tbcnet.net.tw
123.110.87.106	PTR	123-110-87-106.sh.dynamic.tbcnet.net.tw
123.110.87.192	PTR	123-110-87-192.sh.dynamic.tbcnet.net.tw
123.110.87.209	PTR	123-110-87-209.sh.dynamic.tbcnet.net.tw