Robtex

Up: 173.22.80.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 173.22.88.0/22
Down right: 173.22.92.0/22

IP	Type	Hostname
173.22.88.23	A+PTR	173-22-88-23.client.mchsi.com
173.22.88.99	A+PTR	173-22-88-99.client.mchsi.com
173.22.88.203	A	173-22-88-203.client.mchsi.com
173.22.90.40	A+PTR	173-22-90-40.client.mchsi.com
173.22.90.132	A+PTR	173-22-90-132.client.mchsi.com
173.22.90.186	A	mail.p-r-services.com
173.22.91.76	A+PTR	173-22-91-76.client.mchsi.com
173.22.91.76	A	vagclown.com
173.22.91.84	A+PTR	173-22-91-84.client.mchsi.com
173.22.93.0	A+PTR	173-22-93-0.client.mchsi.com
173.22.93.7	A	173-22-93-7.client.mchsi.com
173.22.93.8	A+PTR	173-22-93-8.client.mchsi.com
173.22.93.10	A	173-22-93-10.client.mchsi.com
173.22.93.17	A+PTR	173-22-93-17.client.mchsi.com
173.22.93.26	A+PTR	173-22-93-26.client.mchsi.com
173.22.93.27	PTR	173-22-93-27.client.mchsi.com
173.22.93.34	A+PTR	173-22-93-34.client.mchsi.com
173.22.93.37	A	173-22-93-37.client.mchsi.com
173.22.93.39	A	173-22-93-39.client.mchsi.com
173.22.93.41	A+PTR	173-22-93-41.client.mchsi.com
173.22.93.43	A+PTR	173-22-93-43.client.mchsi.com
173.22.93.45	A	173-22-93-45.client.mchsi.com
173.22.93.46	A	173-22-93-46.client.mchsi.com
173.22.93.48	A+PTR	173-22-93-48.client.mchsi.com
173.22.93.50	A+PTR	173-22-93-50.client.mchsi.com
173.22.93.52	A	173-22-93-52.client.mchsi.com
173.22.93.53	A	173-22-93-53.client.mchsi.com
173.22.93.58	A+PTR	173-22-93-58.client.mchsi.com
173.22.93.60	A	173-22-93-60.client.mchsi.com
173.22.93.61	A	173-22-93-61.client.mchsi.com
173.22.93.62	A	173-22-93-62.client.mchsi.com
173.22.93.64	A+PTR	173-22-93-64.client.mchsi.com
173.22.93.67	A+PTR	173-22-93-67.client.mchsi.com
173.22.93.68	A	173-22-93-68.client.mchsi.com
173.22.93.72	A+PTR	173-22-93-72.client.mchsi.com
173.22.93.79	A	173-22-93-79.client.mchsi.com
173.22.93.83	A+PTR	173-22-93-83.client.mchsi.com
173.22.93.86	A	173-22-93-86.client.mchsi.com
173.22.93.92	A	173-22-93-92.client.mchsi.com
173.22.93.100	A	173-22-93-100.client.mchsi.com
173.22.93.104	A+PTR	173-22-93-104.client.mchsi.com
173.22.93.112	A+PTR	173-22-93-112.client.mchsi.com
173.22.93.116	A	173-22-93-116.client.mchsi.com
173.22.93.118	A	173-22-93-118.client.mchsi.com
173.22.93.123	A+PTR	173-22-93-123.client.mchsi.com
173.22.93.125	A	173-22-93-125.client.mchsi.com
173.22.93.127	A	173-22-93-127.client.mchsi.com
173.22.93.130	A+PTR	173-22-93-130.client.mchsi.com
173.22.93.135	A	173-22-93-135.client.mchsi.com
173.22.93.138	A+PTR	173-22-93-138.client.mchsi.com
173.22.93.139	A+PTR	173-22-93-139.client.mchsi.com
173.22.93.148	A	173-22-93-148.client.mchsi.com
173.22.93.149	A	173-22-93-149.client.mchsi.com
173.22.93.153	A+PTR	173-22-93-153.client.mchsi.com
173.22.93.155	A+PTR	173-22-93-155.client.mchsi.com
173.22.93.162	A+PTR	173-22-93-162.client.mchsi.com
173.22.93.168	A+PTR	173-22-93-168.client.mchsi.com
173.22.93.176	A+PTR	173-22-93-176.client.mchsi.com
173.22.93.178	A+PTR	173-22-93-178.client.mchsi.com
173.22.93.179	A+PTR	173-22-93-179.client.mchsi.com
173.22.93.181	A	173-22-93-181.client.mchsi.com
173.22.93.185	A+PTR	173-22-93-185.client.mchsi.com
173.22.93.187	A+PTR	173-22-93-187.client.mchsi.com
173.22.93.189	A	173-22-93-189.client.mchsi.com
173.22.93.192	A+PTR	173-22-93-192.client.mchsi.com
173.22.93.198	A	173-22-93-198.client.mchsi.com
173.22.93.199	A	173-22-93-199.client.mchsi.com
173.22.93.201	A+PTR	173-22-93-201.client.mchsi.com
173.22.93.202	A+PTR	173-22-93-202.client.mchsi.com
173.22.93.206	A	173-22-93-206.client.mchsi.com
173.22.93.207	A	173-22-93-207.client.mchsi.com
173.22.93.208	A+PTR	173-22-93-208.client.mchsi.com
173.22.93.210	A	mx.2917mlk.com
173.22.93.210	A	edge.2917mlk.com
173.22.93.211	A+PTR	173-22-93-211.client.mchsi.com
173.22.93.217	A+PTR	173-22-93-217.client.mchsi.com
173.22.93.219	A+PTR	173-22-93-219.client.mchsi.com
173.22.93.225	A+PTR	173-22-93-225.client.mchsi.com
173.22.93.227	A+PTR	173-22-93-227.client.mchsi.com
173.22.93.230	A	173-22-93-230.client.mchsi.com
173.22.93.232	A+PTR	173-22-93-232.client.mchsi.com
173.22.93.238	A	173-22-93-238.client.mchsi.com
173.22.93.242	A+PTR	173-22-93-242.client.mchsi.com
173.22.93.246	A	173-22-93-246.client.mchsi.com
173.22.93.247	A	173-22-93-247.client.mchsi.com
173.22.93.248	A+PTR	173-22-93-248.client.mchsi.com
173.22.94.5	PTR	173-22-94-5.client.mchsi.com
173.22.95.147	PTR	173-22-95-147.client.mchsi.com
173.22.95.239	A+PTR	173-22-95-239.client.mchsi.com