Robtex

Up: 122.146.168.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 122.146.172.0/23
Down right: 122.146.174.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
122.146.172.96	PTR	ultrafine.com.tw
122.146.172.97	PTR	ultrafine.com.tw
122.146.172.98	A+PTR	ultrafine.com.tw
122.146.172.98	PTR	mail.ultrafine.com.tw
122.146.172.99	PTR	ultrafine.com.tw
122.146.172.100	A+PTR	mail.ultrafine.com.tw
122.146.172.101	PTR	ultrafine.com.tw
122.146.172.102	PTR	ultrafine.com.tw
122.146.172.103	PTR	ultrafine.com.tw
122.146.172.104	PTR	ultrafine.com.tw
122.146.172.105	PTR	ultrafine.com.tw
122.146.172.106	PTR	ultrafine.com.tw
122.146.172.107	PTR	ultrafine.com.tw
122.146.172.108	PTR	ultrafine.com.tw
122.146.172.109	PTR	ultrafine.com.tw
122.146.172.110	PTR	ultrafine.com.tw
122.146.172.111	PTR	ultrafine.com.tw
122.146.172.115	A	mail.cref.org.tw
122.146.172.115	A	elunch.com.tw
122.146.172.116	A	spam.hgcc.com.tw
122.146.172.116	A	spam.cref.org.tw
122.146.172.117	A	cpbl.ksi.com.tw
122.146.172.117	A	live2.ksi.com.tw
122.146.172.121	A	ntsrv.ksi.com.tw
122.146.174.130	A+PTR	mail.sunrex.com.tw
122.146.174.130	A	mail.varexx.com
122.146.174.130	A	st.sunrex.com.tw
122.146.174.213	A	dns2.yuken.com.tw
122.146.174.218	A+PTR	mail.yuken.com.tw
122.146.174.218	A	yuken.com.tw
122.146.174.218	A	dns1.yuken.com.tw
122.146.174.226	PTR	js.jensheng.com
122.146.174.226	A	ns.jensheng.com
122.146.174.227	A+PTR	jensheng.com
122.146.174.227	A	ns1.jensheng.com
122.146.174.229	A	www.jensheng.com
122.146.174.240	PTR	122-146-174-240.static.sparqnet.net
122.146.175.0	PTR	122-146-175-0.static.sparqnet.net
122.146.175.5	PTR	122-146-175-5.static.sparqnet.net
122.146.175.84	PTR	122-146-175-84.static.sparqnet.net
122.146.175.112	PTR	122-146-175-112.static.sparqnet.net
122.146.175.117	PTR	122-146-175-117.static.sparqnet.net
122.146.175.137	PTR	122-146-175-137.static.sparqnet.net
122.146.175.161	PTR	122-146-175-161.static.sparqnet.net
122.146.175.255	PTR	122-146-175-255.static.sparqnet.net