Robtex

Up: 61.66.224.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 61.66.232.0/22
Down right: 61.66.236.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
61.66.234.113	PTR	ll-61-66-234-113.ll.sparqnet.net
61.66.235.67	PTR	ll-61-66-235-67.ll.sparqnet.net
61.66.235.73	PTR	ll-61-66-235-73.ll.sparqnet.net
61.66.235.203	PTR	ll-61-66-235-203.ll.sparqnet.net
61.66.235.211	PTR	ll-61-66-235-211.ll.sparqnet.net
61.66.235.232	PTR	ll-61-66-235-232.ll.sparqnet.net
61.66.236.2	PTR	ll-61-66-236-2.ll.sparqnet.net
61.66.236.91	PTR	ll-61-66-236-91.ll.sparqnet.net
61.66.237.36	A	mail1.arima.com.tw
61.66.237.80	A+PTR	www.arima.com.tw
61.66.237.95	A+PTR	mail-1.arima.com.tw
61.66.237.95	A	mail-1.arimaeco.com
61.66.237.96	A+PTR	dns1.arima.com.tw
61.66.237.96	A+PTR	mail1.arima.com.tw
61.66.237.96	A	dns1.arimaeco.com
61.66.237.97	PTR	dns2.arima.com.tw
61.66.237.250	A	mail1.arima.com.tw