Robtex

Up: 72.161.240.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 72.161.240.0/22
Down right: 72.161.244.0/22

IP	Type	Hostname
72.161.240.137	A+PTR	72-161-240-137.dyn.centurytel.net
72.161.240.137	A	hauptmanns.com
72.161.240.141	A	mail.jwolfstudios.com
72.161.240.141	A	jwolfstudios.com
72.161.241.143	A+PTR	72-161-241-143.dyn.centurytel.net
72.161.241.216	A+PTR	72-161-241-216.dyn.centurytel.net
72.161.242.31	A+PTR	72-161-242-31.dyn.centurytel.net
72.161.242.84	A+PTR	72-161-242-84.dyn.centurytel.net
72.161.243.1	A+PTR	72-161-243-1.dyn.centurytel.net
72.161.243.5	A	72-161-243-5.dyn.centurytel.net
72.161.243.11	A+PTR	72-161-243-11.dyn.centurytel.net
72.161.243.28	A	72-161-243-28.dyn.centurytel.net
72.161.243.29	A	72-161-243-29.dyn.centurytel.net
72.161.243.31	A	72-161-243-31.dyn.centurytel.net
72.161.243.32	A+PTR	72-161-243-32.dyn.centurytel.net
72.161.243.44	A	72-161-243-44.dyn.centurytel.net
72.161.243.46	A	72-161-243-46.dyn.centurytel.net
72.161.243.47	A	72-161-243-47.dyn.centurytel.net
72.161.243.67	A+PTR	72-161-243-67.dyn.centurytel.net
72.161.243.71	A	72-161-243-71.dyn.centurytel.net
72.161.243.73	A+PTR	72-161-243-73.dyn.centurytel.net
72.161.243.76	A	72-161-243-76.dyn.centurytel.net
72.161.243.87	A	72-161-243-87.dyn.centurytel.net
72.161.243.101	A	72-161-243-101.dyn.centurytel.net
72.161.243.102	A	72-161-243-102.dyn.centurytel.net
72.161.243.143	A	72-161-243-143.dyn.centurytel.net
72.161.243.184	A+PTR	72-161-243-184.dyn.centurytel.net
72.161.243.192	A+PTR	72-161-243-192.dyn.centurytel.net
72.161.243.193	A	72-161-243-193.dyn.centurytel.net
72.161.243.232	A+PTR	72-161-243-232.dyn.centurytel.net
72.161.243.233	A+PTR	72-161-243-233.dyn.centurytel.net
72.161.243.235	A+PTR	72-161-243-235.dyn.centurytel.net
72.161.243.254	A	72-161-243-254.dyn.centurytel.net