Robtex

Up: 72.161.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 72.161.48.0/23
Down right: 72.161.50.0/23

IP	Type	Hostname
72.161.48.3	A+PTR	72-161-48-3.dyn.centurytel.net
72.161.48.31	A+PTR	72-161-48-31.dyn.centurytel.net
72.161.48.67	A+PTR	72-161-48-67.dyn.centurytel.net
72.161.48.71	A+PTR	72-161-48-71.dyn.centurytel.net
72.161.48.101	A+PTR	72-161-48-101.dyn.centurytel.net
72.161.48.103	A+PTR	72-161-48-103.dyn.centurytel.net
72.161.48.106	A+PTR	72-161-48-106.dyn.centurytel.net
72.161.48.113	A+PTR	72-161-48-113.dyn.centurytel.net
72.161.48.123	A+PTR	72-161-48-123.dyn.centurytel.net
72.161.48.128	A+PTR	72-161-48-128.dyn.centurytel.net
72.161.48.171	A	72-161-48-171.dyn.centurytel.net
72.161.48.208	A+PTR	72-161-48-208.dyn.centurytel.net
72.161.48.210	A+PTR	72-161-48-210.dyn.centurytel.net
72.161.48.211	A+PTR	72-161-48-211.dyn.centurytel.net
72.161.48.226	A+PTR	72-161-48-226.dyn.centurytel.net
72.161.50.8	A+PTR	72-161-50-8.dyn.centurytel.net
72.161.50.16	A+PTR	72-161-50-16.dyn.centurytel.net
72.161.50.46	A+PTR	72-161-50-46.dyn.centurytel.net
72.161.50.53	A+PTR	72-161-50-53.dyn.centurytel.net
72.161.50.85	A+PTR	72-161-50-85.dyn.centurytel.net
72.161.50.98	A+PTR	72-161-50-98.dyn.centurytel.net
72.161.50.99	PTR	72-161-50-99.dyn.centurytel.net
72.161.50.102	A+PTR	72-161-50-102.dyn.centurytel.net
72.161.50.111	A+PTR	72-161-50-111.dyn.centurytel.net
72.161.50.126	A+PTR	72-161-50-126.dyn.centurytel.net
72.161.50.156	A+PTR	72-161-50-156.dyn.centurytel.net
72.161.50.168	A+PTR	72-161-50-168.dyn.centurytel.net
72.161.50.174	A+PTR	72-161-50-174.dyn.centurytel.net
72.161.50.182	A+PTR	72-161-50-182.dyn.centurytel.net
72.161.50.197	A+PTR	72-161-50-197.dyn.centurytel.net
72.161.50.239	A+PTR	72-161-50-239.dyn.centurytel.net
72.161.51.8	A+PTR	72-161-51-8.dyn.centurytel.net
72.161.51.14	A+PTR	72-161-51-14.dyn.centurytel.net
72.161.51.17	A	72-161-51-17.dyn.centurytel.net
72.161.51.21	A+PTR	72-161-51-21.dyn.centurytel.net
72.161.51.22	A+PTR	72-161-51-22.dyn.centurytel.net
72.161.51.29	A+PTR	72-161-51-29.dyn.centurytel.net
72.161.51.42	A+PTR	72-161-51-42.dyn.centurytel.net
72.161.51.51	A+PTR	72-161-51-51.dyn.centurytel.net
72.161.51.63	A+PTR	72-161-51-63.dyn.centurytel.net
72.161.51.70	PTR	72-161-51-70.dyn.centurytel.net
72.161.51.70	A	mail.ashbreeze.com
72.161.51.80	A+PTR	72-161-51-80.dyn.centurytel.net
72.161.51.83	A+PTR	72-161-51-83.dyn.centurytel.net
72.161.51.86	A+PTR	72-161-51-86.dyn.centurytel.net
72.161.51.99	A+PTR	72-161-51-99.dyn.centurytel.net
72.161.51.137	A+PTR	72-161-51-137.dyn.centurytel.net
72.161.51.145	A	72-161-51-145.dyn.centurytel.net
72.161.51.155	A+PTR	72-161-51-155.dyn.centurytel.net
72.161.51.209	A+PTR	72-161-51-209.dyn.centurytel.net
72.161.51.224	A+PTR	72-161-51-224.dyn.centurytel.net
72.161.51.226	A+PTR	72-161-51-226.dyn.centurytel.net
72.161.51.229	A	72-161-51-229.dyn.centurytel.net
72.161.51.241	PTR	72-161-51-241.dyn.centurytel.net
72.161.51.254	PTR	72-161-51-254.dyn.centurytel.net