Robtex

Up: 66.140.160.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 66.140.160.0/21
Down right: 66.140.168.0/21

IP	Type	Hostname
66.140.160.10	A	syslog.skyriver.net
66.140.160.10	A	skysyslog.skyriver.net
66.140.168.103	A	mail.swmedcenter.net
66.140.170.131	A	mail.catchitkansas.com
66.140.172.179	PTR	adsl-66-140-172-179.dsl.wchtks.swbell.net
66.140.172.227	A+PTR	adsl-66-140-172-227.dsl.wchtks.swbell.net
66.140.173.115	PTR	adsl-66-140-173-115.dsl.wchtks.swbell.net
66.140.174.7	A	adsl-66-140-174-7.dsl.wchtks.swbell.net
66.140.174.98	A+PTR	adsl-66-140-174-98.dsl.wchtks.swbell.net
66.140.174.131	A+PTR	adsl-66-140-174-131.dsl.wchtks.swbell.net
66.140.175.141	A	adsl-66-140-175-141.dsl.wchtks.swbell.net