Robtex

Up: 72.51.192.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 72.51.224.0/20
Down right: 72.51.240.0/20

IP	Type	Hostname
72.51.228.8	A	mail.cumberlandmedlab.com
72.51.244.0	PTR	host-72-51-244-0.newwavecomm.net
72.51.244.2	A	host-72-51-244-2.newwavecomm.net
72.51.244.3	A	host-72-51-244-3.newwavecomm.net
72.51.244.14	A	host-72-51-244-14.newwavecomm.net
72.51.244.26	A	host-72-51-244-26.newwavecomm.net
72.51.244.50	A	host-72-51-244-50.newwavecomm.net
72.51.244.72	A	host-72-51-244-72.newwavecomm.net
72.51.244.77	A	host-72-51-244-77.newwavecomm.net
72.51.244.108	A	host-72-51-244-108.newwavecomm.net
72.51.244.124	A	host-72-51-244-124.newwavecomm.net
72.51.244.130	PTR	host-72-51-244-130.newwavecomm.net
72.51.244.130	A	mail.stoddardcountypa.org
72.51.244.130	A	stoddardcountypa.org
72.51.244.165	A	host-72-51-244-165.newwavecomm.net
72.51.244.172	A	host-72-51-244-172.newwavecomm.net
72.51.244.187	A	host-72-51-244-187.newwavecomm.net
72.51.244.192	A	host-72-51-244-192.newwavecomm.net
72.51.244.241	A	host-72-51-244-241.newwavecomm.net
72.51.244.246	A	host-72-51-244-246.newwavecomm.net
72.51.244.248	A	host-72-51-244-248.newwavecomm.net
72.51.245.224	PTR	host-72-51-245-224.newwavecomm.net
72.51.245.224	A	www.kncfashions.com
72.51.253.0	PTR	host-72-51-253-0.newwavecomm.net
72.51.253.2	PTR	main.woodallwireless.com
72.51.253.3	PTR	mail.woodallwireless.com
72.51.253.3	PTR	remote.woodallwireless.com
72.51.253.32	PTR	host-72-51-253-32.newwavecomm.net
72.51.253.96	PTR	host-72-51-253-96.newwavecomm.net
72.51.253.128	PTR	host-72-51-253-128.newwavecomm.net
72.51.253.130	PTR	host-72-51-253-130.newwavecomm.net
72.51.253.160	PTR	host-72-51-253-160.newwavecomm.net
72.51.253.163	PTR	host-72-51-253-163.newwavecomm.net
72.51.253.194	PTR	host-72-51-253-194.newwavecomm.net
72.51.253.195	PTR	host-72-51-253-195.newwavecomm.net
72.51.253.225	PTR	host-72-51-253-225.newwavecomm.net
72.51.253.227	PTR	host-72-51-253-227.newwavecomm.net