Robtex

Up: 210.68.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 210.68.52.0/23
Down right: 210.68.54.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
210.68.52.2	PTR	mail.hhc.idv.tw
210.68.52.2	A	ns.hhc.idv.tw
210.68.52.16	PTR	h16-210-68-52.hannstar.com.tw
210.68.52.16	A	ns1.morning.net.tw
210.68.52.18	PTR	h18-210-68-52.hannstar.com.tw
210.68.52.43	PTR	h43-210-68-52.hannstar.com.tw
210.68.52.51	PTR	h51-210-68-52.hannstar.com.tw
210.68.52.66	A	www.sunnycake.com.tw
210.68.52.66	A	dns1.sunnycake.com.tw
210.68.52.96	PTR	h96-210-68-52.hannstar.com.tw
210.68.52.97	PTR	h97-210-68-52.hannstar.com.tw
210.68.52.111	PTR	h111-210-68-52.hannstar.com.tw
210.68.52.117	PTR	h117-210-68-52.hannstar.com.tw
210.68.52.124	PTR	h124-210-68-52.hannstar.com.tw
210.68.53.7	A+PTR	h210-68-53-7.host-dial.seed.net.tw
210.68.53.8	A+PTR	h210-68-53-8.host-dial.seed.net.tw
210.68.53.10	PTR	enrestec.com.tw
210.68.53.10	A+PTR	sharepoint.enrestec.com.tw
210.68.53.12	PTR	enrestec.com.tw
210.68.53.12	PTR	email.enrestec.com.tw
210.68.53.14	PTR	enrestec.com.tw
210.68.53.14	A+PTR	dns.enrestec.com.tw
210.68.53.14	A+PTR	ns.enrestec.com.tw
210.68.53.16	A+PTR	mail.dsmfe.com.tw
210.68.53.16	A	email.dsmfe.com.tw
210.68.53.16	A	ns.dsmfe.com.tw
210.68.53.35	A+PTR	h210-68-53-35.host-dial.seed.net.tw
210.68.53.37	A+PTR	h210-68-53-37.host-dial.seed.net.tw
210.68.53.48	A+PTR	h210-68-53-48.host-dial.seed.net.tw
210.68.53.50	A+PTR	h210-68-53-50.host-dial.seed.net.tw
210.68.53.52	A+PTR	h210-68-53-52.host-dial.seed.net.tw
210.68.53.60	A+PTR	h210-68-53-60.host-dial.seed.net.tw
210.68.53.76	A+PTR	h210-68-53-76.host-dial.seed.net.tw
210.68.53.90	A+PTR	h210-68-53-90.host-dial.seed.net.tw
210.68.53.144	A+PTR	h210-68-53-144.host-dial.seed.net.tw
210.68.53.151	A+PTR	h210-68-53-151.host-dial.seed.net.tw
210.68.53.181	A+PTR	h210-68-53-181.host-dial.seed.net.tw
210.68.53.188	A+PTR	h210-68-53-188.host-dial.seed.net.tw
210.68.53.190	A+PTR	h210-68-53-190.host-dial.seed.net.tw
210.68.53.208	A+PTR	h210-68-53-208.host-dial.seed.net.tw
210.68.53.233	A+PTR	h210-68-53-233.host-dial.seed.net.tw
210.68.53.253	A+PTR	h210-68-53-253.host-dial.seed.net.tw
210.68.54.9	A+PTR	h210-68-54-9.host-dial.seed.net.tw
210.68.54.23	A+PTR	h210-68-54-23.host-dial.seed.net.tw
210.68.54.46	A	h210-68-54-46.host-dial.seed.net.tw
210.68.54.54	A+PTR	h210-68-54-54.host-dial.seed.net.tw
210.68.54.61	A+PTR	h210-68-54-61.host-dial.seed.net.tw
210.68.54.97	A+PTR	h210-68-54-97.host-dial.seed.net.tw
210.68.54.108	A+PTR	h210-68-54-108.host-dial.seed.net.tw
210.68.54.117	A+PTR	h210-68-54-117.host-dial.seed.net.tw
210.68.54.119	A+PTR	h210-68-54-119.host-dial.seed.net.tw
210.68.54.131	A+PTR	h210-68-54-131.host-dial.seed.net.tw
210.68.54.135	A+PTR	h210-68-54-135.host-dial.seed.net.tw
210.68.54.155	A+PTR	h210-68-54-155.host-dial.seed.net.tw
210.68.54.157	A+PTR	h210-68-54-157.host-dial.seed.net.tw
210.68.54.172	A+PTR	h210-68-54-172.host-dial.seed.net.tw
210.68.54.187	A+PTR	h210-68-54-187.host-dial.seed.net.tw
210.68.54.198	A+PTR	h210-68-54-198.host-dial.seed.net.tw
210.68.54.203	A+PTR	h210-68-54-203.host-dial.seed.net.tw
210.68.54.216	A+PTR	h210-68-54-216.host-dial.seed.net.tw
210.68.54.224	A+PTR	h210-68-54-224.host-dial.seed.net.tw
210.68.54.227	A	h210-68-54-227.host-dial.seed.net.tw
210.68.54.236	A+PTR	h210-68-54-236.host-dial.seed.net.tw
210.68.54.252	A+PTR	h210-68-54-252.host-dial.seed.net.tw