Robtex

Up: 50.80.96.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 50.80.104.0/22
Down right: 50.80.108.0/22

IP	Type	Hostname
50.80.104.166	PTR	50-80-104-166.client.mchsi.com
50.80.106.0	A+PTR	50-80-106-0.client.mchsi.com
50.80.106.4	A	50-80-106-4.client.mchsi.com
50.80.106.6	A	50-80-106-6.client.mchsi.com
50.80.106.7	A	50-80-106-7.client.mchsi.com
50.80.106.8	A+PTR	50-80-106-8.client.mchsi.com
50.80.106.10	A+PTR	50-80-106-10.client.mchsi.com
50.80.106.16	PTR	50-80-106-16.client.mchsi.com
50.80.106.18	A+PTR	50-80-106-18.client.mchsi.com
50.80.106.24	A+PTR	50-80-106-24.client.mchsi.com
50.80.106.29	A	50-80-106-29.client.mchsi.com
50.80.106.30	A	50-80-106-30.client.mchsi.com
50.80.106.33	A+PTR	50-80-106-33.client.mchsi.com
50.80.106.37	A	50-80-106-37.client.mchsi.com
50.80.106.39	A	50-80-106-39.client.mchsi.com
50.80.106.41	A+PTR	50-80-106-41.client.mchsi.com
50.80.106.43	A+PTR	50-80-106-43.client.mchsi.com
50.80.106.48	A+PTR	50-80-106-48.client.mchsi.com
50.80.106.55	A	50-80-106-55.client.mchsi.com
50.80.106.57	A+PTR	50-80-106-57.client.mchsi.com
50.80.106.59	A+PTR	50-80-106-59.client.mchsi.com
50.80.106.61	A	50-80-106-61.client.mchsi.com
50.80.106.62	A	50-80-106-62.client.mchsi.com
50.80.106.67	A+PTR	50-80-106-67.client.mchsi.com
50.80.106.71	A	50-80-106-71.client.mchsi.com
50.80.106.72	A+PTR	50-80-106-72.client.mchsi.com
50.80.106.78	A	50-80-106-78.client.mchsi.com
50.80.106.80	A+PTR	50-80-106-80.client.mchsi.com
50.80.106.82	A+PTR	50-80-106-82.client.mchsi.com
50.80.106.86	A	50-80-106-86.client.mchsi.com
50.80.106.89	A+PTR	50-80-106-89.client.mchsi.com
50.80.106.90	A+PTR	50-80-106-90.client.mchsi.com
50.80.106.93	A	50-80-106-93.client.mchsi.com
50.80.106.95	A	50-80-106-95.client.mchsi.com
50.80.106.103	A	50-80-106-103.client.mchsi.com
50.80.106.106	A+PTR	50-80-106-106.client.mchsi.com
50.80.106.122	A+PTR	50-80-106-122.client.mchsi.com
50.80.106.123	A+PTR	50-80-106-123.client.mchsi.com
50.80.106.126	A	50-80-106-126.client.mchsi.com
50.80.106.130	A+PTR	50-80-106-130.client.mchsi.com
50.80.106.144	A+PTR	50-80-106-144.client.mchsi.com
50.80.106.145	A+PTR	50-80-106-145.client.mchsi.com
50.80.106.150	A	50-80-106-150.client.mchsi.com
50.80.106.156	A	50-80-106-156.client.mchsi.com
50.80.106.158	A	50-80-106-158.client.mchsi.com
50.80.106.159	A	50-80-106-159.client.mchsi.com
50.80.106.163	A+PTR	50-80-106-163.client.mchsi.com
50.80.106.165	A	50-80-106-165.client.mchsi.com
50.80.106.168	A+PTR	50-80-106-168.client.mchsi.com
50.80.106.171	A+PTR	50-80-106-171.client.mchsi.com
50.80.106.186	A+PTR	50-80-106-186.client.mchsi.com
50.80.106.190	A	50-80-106-190.client.mchsi.com
50.80.106.197	A	50-80-106-197.client.mchsi.com
50.80.106.199	A	50-80-106-199.client.mchsi.com
50.80.106.200	A+PTR	50-80-106-200.client.mchsi.com
50.80.106.203	A+PTR	50-80-106-203.client.mchsi.com
50.80.106.207	A	50-80-106-207.client.mchsi.com
50.80.106.217	A+PTR	50-80-106-217.client.mchsi.com
50.80.106.219	A+PTR	50-80-106-219.client.mchsi.com
50.80.106.230	A	50-80-106-230.client.mchsi.com
50.80.106.248	A+PTR	50-80-106-248.client.mchsi.com
50.80.106.251	A+PTR	50-80-106-251.client.mchsi.com
50.80.106.252	A	50-80-106-252.client.mchsi.com
50.80.106.254	A	50-80-106-254.client.mchsi.com
50.80.107.165	A+PTR	50-80-107-165.client.mchsi.com
50.80.107.183	A+PTR	50-80-107-183.client.mchsi.com
50.80.108.198	A+PTR	50-80-108-198.client.mchsi.com
50.80.108.244	A	bradandsandra.com