Robtex

Up: 66.4.0.0/15
Can't show all results, try to descend to a more specific CIDR
Down left: 66.5.0.0/17
Down right: 66.5.128.0/17

IP	Type	Hostname
66.5.138.1	A+PTR	rtp000024rts.tennk12.net
66.5.138.194	A	mail.rocketsonline.org
66.5.138.194	A	www.rocketsonline.org
66.5.139.136	A	www.carrollschools.com
66.5.139.136	A	mail.carrollschools.com
66.5.142.33	A+PTR	rtp000056rts.tennk12.net
66.5.142.65	A	rtp000057rts.tennk12.net
66.5.142.66	A	rtp000058rts.tennk12.net
66.5.142.97	A	rtp000059rts.tennk12.net
66.5.157.1	PTR	gtp000085gts.tennk12.net
66.5.157.2	A+PTR	otp000158ots.tennk12.net
66.5.157.9	PTR	gtp000086gts.tennk12.net
66.5.157.10	A+PTR	otp000159ots.tennk12.net
66.5.157.17	A	gtp000087gts.tennk12.net
66.5.157.18	A	otp000160ots.tennk12.net