Robtex

Up: 123.192.0.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 123.192.8.0/22
Down right: 123.192.12.0/22

IP	Type	Hostname
123.192.8.2	PTR	123-192-8-2.dynamic.kbronet.com.tw
123.192.8.29	A	123-192-8-29.dynamic.kbronet.com.tw
123.192.8.53	A	123-192-8-53.dynamic.kbronet.com.tw
123.192.8.61	A	123-192-8-61.dynamic.kbronet.com.tw
123.192.8.76	A	mail.atosystem.com
123.192.8.142	A	123-192-8-142.dynamic.kbronet.com.tw
123.192.8.153	A+PTR	123-192-8-153.dynamic.kbronet.com.tw
123.192.8.247	A	123-192-8-247.dynamic.kbronet.com.tw
123.192.9.29	A	123-192-9-29.dynamic.kbronet.com.tw
123.192.9.60	A	123-192-9-60.dynamic.kbronet.com.tw
123.192.9.61	A	123-192-9-61.dynamic.kbronet.com.tw
123.192.9.124	A	redcoffee.com.tw
123.192.10.8	PTR	123-192-10-8.dynamic.kbronet.com.tw
123.192.10.8	A	dns.luckycolor.tw
123.192.10.8	A	mail.luckycolor.tw
123.192.10.59	PTR	123-192-10-59.dynamic.kbronet.com.tw
123.192.10.181	A	123-192-10-181.dynamic.kbronet.com.tw
123.192.10.190	A	123-192-10-190.dynamic.kbronet.com.tw
123.192.11.66	A+PTR	123-192-11-66.dynamic.kbronet.com.tw
123.192.12.2	PTR	123-192-12-2.dynamic.kbronet.com.tw
123.192.12.17	PTR	123-192-12-17.dynamic.kbronet.com.tw
123.192.12.29	A	123-192-12-29.dynamic.kbronet.com.tw
123.192.12.37	A	123-192-12-37.dynamic.kbronet.com.tw
123.192.12.61	A	123-192-12-61.dynamic.kbronet.com.tw
123.192.12.144	A	fairlydesign.com
123.192.13.2	A	chanwoods.org
123.192.13.61	A	123-192-13-61.dynamic.kbronet.com.tw
123.192.13.181	A	123-192-13-181.dynamic.kbronet.com.tw
123.192.13.182	A	123-192-13-182.dynamic.kbronet.com.tw
123.192.13.219	A+PTR	123-192-13-219.dynamic.kbronet.com.tw
123.192.13.253	A	123-192-13-253.dynamic.kbronet.com.tw
123.192.14.92	A	123-192-14-92.dynamic.kbronet.com.tw