Robtex

Up: 66.102.240.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 66.102.240.0/22
Down right: 66.102.244.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
66.102.241.2	A+PTR	ns1.chinatelecomusa.net
66.102.241.2	A+PTR	dns1.chinatelecomusa.net
66.102.241.7	PTR	smtp.ctamericas.com
66.102.241.7	PTR	smtp.ctbrasil.com
66.102.241.7	A	ctbrazil.com
66.102.241.8	PTR	smtp.chinaccsusa.com
66.102.241.8	PTR	smtp1.ctamericas.com
66.102.241.8	A	mail.chinaccsusa.com
66.102.241.12	PTR	mail.ctbrasil.com
66.102.241.12	A+PTR	mail.chinatelecomusa.com
66.102.241.12	A+PTR	mail.chinaccsusa.com
66.102.241.195	A	mail.mowk.com
66.102.242.2	A+PTR	ns2.chinatelecomusa.net
66.102.242.2	A	dns2.chinatelecomusa.net
66.102.244.17	A	kmiware.com
66.102.246.33	A	ns7.sohu.net
66.102.246.115	A	ns3.chinese.cn
66.102.246.139	A	handan.auto.sohu.com
66.102.246.139	A	dezhou.auto.sohu.com
66.102.246.139	A	chaoyang.auto.sohu.com
66.102.246.150	A	xinhengwuliu.com