Robtex

Up: 174.66.72.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 174.66.76.0/23
Down right: 174.66.78.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
174.66.76.17	A+PTR	wsip-174-66-76-17.ri.ri.cox.net
174.66.76.24	A+PTR	wsip-174-66-76-24.ri.ri.cox.net
174.66.76.46	A+PTR	wsip-174-66-76-46.ri.ri.cox.net
174.66.76.93	A+PTR	wsip-174-66-76-93.ri.ri.cox.net
174.66.76.104	A+PTR	wsip-174-66-76-104.ri.ri.cox.net
174.66.76.157	A+PTR	wsip-174-66-76-157.ri.ri.cox.net
174.66.76.163	PTR	wsip-174-66-76-163.ri.ri.cox.net
174.66.76.163	A	cheshirecricketclub.org
174.66.76.163	A	vishtek.com
174.66.76.164	A+PTR	wsip-174-66-76-164.ri.ri.cox.net
174.66.76.164	A	examchamps.com
174.66.76.164	A	digitaleducationcentre.com
174.66.76.183	A+PTR	wsip-174-66-76-183.ri.ri.cox.net
174.66.76.217	A+PTR	wsip-174-66-76-217.ri.ri.cox.net
174.66.77.19	A+PTR	wsip-174-66-77-19.ri.ri.cox.net
174.66.77.21	A+PTR	wsip-174-66-77-21.ri.ri.cox.net
174.66.77.41	A+PTR	wsip-174-66-77-41.ri.ri.cox.net
174.66.77.42	A+PTR	wsip-174-66-77-42.ri.ri.cox.net
174.66.77.61	A+PTR	wsip-174-66-77-61.ri.ri.cox.net
174.66.77.66	A+PTR	wsip-174-66-77-66.ri.ri.cox.net
174.66.77.78	A+PTR	wsip-174-66-77-78.ri.ri.cox.net
174.66.77.83	A+PTR	wsip-174-66-77-83.ri.ri.cox.net
174.66.77.191	A+PTR	wsip-174-66-77-191.ri.ri.cox.net
174.66.77.196	A+PTR	wsip-174-66-77-196.ri.ri.cox.net
174.66.77.215	A+PTR	wsip-174-66-77-215.ri.ri.cox.net
174.66.77.231	A+PTR	wsip-174-66-77-231.ri.ri.cox.net
174.66.77.246	A+PTR	wsip-174-66-77-246.ri.ri.cox.net
174.66.78.3	A+PTR	wsip-174-66-78-3.ri.ri.cox.net
174.66.78.55	A+PTR	wsip-174-66-78-55.ri.ri.cox.net
174.66.78.91	A+PTR	wsip-174-66-78-91.ri.ri.cox.net
174.66.78.182	A+PTR	wsip-174-66-78-182.ri.ri.cox.net
174.66.78.182	A	orszulak.net
174.66.78.190	A+PTR	wsip-174-66-78-190.ri.ri.cox.net
174.66.78.194	A+PTR	wsip-174-66-78-194.ri.ri.cox.net
174.66.79.13	PTR	mail.ardente.com
174.66.79.13	A	www.ardente.com
174.66.79.13	A	webmail.ardente.com
174.66.79.23	A+PTR	wsip-174-66-79-23.ri.ri.cox.net
174.66.79.43	PTR	wsip-174-66-79-43.ri.ri.cox.net
174.66.79.47	A+PTR	wsip-174-66-79-47.ri.ri.cox.net
174.66.79.85	A+PTR	wsip-174-66-79-85.ri.ri.cox.net
174.66.79.117	A+PTR	wsip-174-66-79-117.ri.ri.cox.net