Robtex

Up: 74.119.16.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 74.119.16.0/22
Down right: 74.119.20.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
74.119.16.0	PTR	commerce-0.believewireless.net
74.119.16.2	PTR	commerce-2.believewireless.net
74.119.16.11	A+PTR	email.scispec.com
74.119.16.34	PTR	commerce-34.believewireless.net
74.119.16.42	PTR	commerce-42.believewireless.net
74.119.16.43	PTR	commerce-43.believewireless.net
74.119.16.58	PTR	commerce-58.believewireless.net
74.119.16.72	PTR	commerce-72.believewireless.net
74.119.16.75	PTR	commerce-75.believewireless.net
74.119.16.80	PTR	commerce-80.believewireless.net
74.119.16.81	PTR	commerce-81.believewireless.net
74.119.16.91	PTR	commerce-91.believewireless.net
74.119.17.17	PTR	l3-lm.believewireless.net
74.119.17.19	PTR	commerce-19.believewireless.net
74.119.17.26	PTR	silo-canton.believewireless.net
74.119.17.34	PTR	commerce-34.believewireless.net
74.119.17.43	PTR	commerce-43.believewireless.net
74.119.17.57	PTR	mariner-57.believewireless.net
74.119.17.58	PTR	mariner-58.believewireless.net
74.119.17.59	PTR	mariner-59.believewireless.net
74.119.17.72	PTR	commerce-72.believewireless.net
74.119.17.75	PTR	commerce-75.believewireless.net
74.119.17.81	PTR	commerce-81.believewireless.net
74.119.17.88	PTR	commerce-88.believewireless.net
74.119.17.89	PTR	commerce-89.believewireless.net
74.119.17.112	PTR	commerce-112.believewireless.net
74.119.17.113	PTR	commerce-113.believewireless.net
74.119.17.114	PTR	commerce-114.believewireless.net
74.119.17.120	PTR	commerce-120.believewireless.net
74.119.17.128	PTR	commerce-128.believewireless.net
74.119.17.130	PTR	commerce-130.believewireless.net
74.119.17.138	PTR	commerce-138.believewireless.net
74.119.17.139	PTR	commerce-139.believewireless.net
74.119.17.144	PTR	commerce-144.believewireless.net
74.119.17.146	PTR	commerce-146.believewireless.net
74.119.17.155	PTR	commerce-155.believewireless.net
74.119.17.162	PTR	commerce-162.believewireless.net
74.119.17.166	A	speedtest.believebroadband.com
74.119.17.170	PTR	commerce-170.believewireless.net
74.119.17.178	PTR	commerce-178.believewireless.net
74.119.17.193	PTR	commerce-193.believewireless.net
74.119.17.194	PTR	commerce-194.believewireless.net
74.119.17.195	PTR	commerce-195.believewireless.net
74.119.17.200	PTR	commerce-200.believewireless.net
74.119.17.201	PTR	commerce-201.believewireless.net
74.119.17.202	PTR	commerce-202.believewireless.net
74.119.17.208	PTR	commerce-208.believewireless.net
74.119.17.209	PTR	commerce-209.believewireless.net
74.119.17.216	PTR	commerce-216.believewireless.net
74.119.17.225	PTR	commerce-225.believewireless.net
74.119.17.233	PTR	commerce-233.believewireless.net
74.119.17.234	PTR	commerce-234.believewireless.net
74.119.17.235	PTR	commerce-235.believewireless.net
74.119.17.241	PTR	commerce-241.believewireless.net
74.119.17.242	PTR	entrequest.believewireless.net
74.119.17.243	PTR	commerce-243.believewireless.net
74.119.17.248	PTR	commerce-248.believewireless.net
74.119.18.1	PTR	silo-1.believewireless.net
74.119.18.2	PTR	silo-2.believewireless.net
74.119.18.3	PTR	silo-3.believewireless.net
74.119.18.8	PTR	silo-8.believewireless.net
74.119.18.10	PTR	silo-10.believewireless.net
74.119.18.10	A	email.midstates-oil.com
74.119.18.10	A	midstates-oil.com
74.119.18.16	PTR	silo-16.believewireless.net
74.119.18.19	PTR	silo-19.believewireless.net
74.119.18.25	PTR	canton-silo.believewireless.net
74.119.18.34	PTR	silo-34.believewireless.net
74.119.18.40	PTR	silo-40.believewireless.net
74.119.18.41	PTR	silo-41.believewireless.net
74.119.18.48	PTR	silo-48.believewireless.net
74.119.18.49	PTR	silo-49.believewireless.net
74.119.18.67	PTR	silo-67.believewireless.net
74.119.18.72	PTR	silo-72.believewireless.net
74.119.18.73	PTR	silo-73.believewireless.net
74.119.18.73	A	greensandleans.com
74.119.18.73	A	greensbeansleans.com
74.119.18.81	PTR	silo-81.believewireless.net
74.119.18.96	PTR	silo-96.believewireless.net
74.119.18.107	PTR	silo-107.believewireless.net
74.119.18.128	PTR	silo-128.believewireless.net
74.119.18.147	PTR	silo-147.believewireless.net
74.119.18.153	PTR	silo-153.believewireless.net
74.119.18.176	PTR	silo-176.believewireless.net
74.119.18.177	PTR	silo-177.believewireless.net
74.119.18.208	PTR	silo-208.believewireless.net
74.119.18.211	PTR	silo-211.believewireless.net
74.119.18.232	PTR	silo-232.believewireless.net
74.119.18.234	PTR	silo-234.believewireless.net
74.119.18.235	PTR	silo-235.believewireless.net
74.119.18.240	PTR	silo-240.believewireless.net
74.119.18.242	PTR	silo-242.believewireless.net
74.119.18.249	PTR	silo-249.believewireless.net
74.119.19.8	PTR	commerce-8.believewireless.net
74.119.19.9	PTR	commerce-9.believewireless.net
74.119.19.17	PTR	l3-lm.believewireless.net
74.119.19.19	PTR	commerce-19.believewireless.net
74.119.19.24	PTR	commerce-24.believewireless.net
74.119.19.25	PTR	canton-silo.believewireless.net
74.119.19.32	PTR	commerce-32.believewireless.net
74.119.19.41	PTR	commerce-41.believewireless.net
74.119.19.42	PTR	commerce-42.believewireless.net
74.119.19.43	PTR	commerce-43.believewireless.net
74.119.19.49	PTR	commerce-49.believewireless.net
74.119.19.51	PTR	commerce-51.believewireless.net
74.119.19.56	PTR	commerce-56.believewireless.net
74.119.19.64	PTR	commerce-64.believewireless.net
74.119.19.72	PTR	commerce-72.believewireless.net
74.119.19.80	PTR	commerce-80.believewireless.net
74.119.19.89	PTR	commerce-89.believewireless.net
74.119.19.107	PTR	commerce-107.believewireless.net
74.119.19.114	PTR	commerce-114.believewireless.net
74.119.19.122	PTR	commerce-122.believewireless.net
74.119.19.130	PTR	commerce-130.believewireless.net
74.119.19.137	PTR	commerce-137.believewireless.net
74.119.19.146	PTR	commerce-146.believewireless.net
74.119.19.152	PTR	commerce-152.believewireless.net
74.119.19.155	PTR	commerce-155.believewireless.net
74.119.19.160	PTR	commerce-160.believewireless.net
74.119.19.163	PTR	commerce-163.believewireless.net
74.119.19.176	PTR	commerce-176.believewireless.net
74.119.19.186	PTR	commerce-186.believewireless.net
74.119.19.195	PTR	commerce-195.believewireless.net
74.119.19.203	PTR	commerce-203.believewireless.net
74.119.19.209	PTR	commerce-209.believewireless.net
74.119.19.226	PTR	commerce-226.believewireless.net
74.119.19.235	PTR	commerce-235.believewireless.net
74.119.19.242	PTR	commerce-242.believewireless.net
74.119.19.251	PTR	commerce-251.believewireless.net
74.119.20.8	PTR	unionstation-8.believewireless.net
74.119.20.17	PTR	unionstation-17.believewireless.net
74.119.20.18	PTR	unionstation-18.believewireless.net
74.119.20.27	PTR	unionstation-27.believewireless.net
74.119.20.41	PTR	unionstation-41.believewireless.net
74.119.20.48	PTR	unionstation-48.believewireless.net
74.119.20.51	PTR	unionstation-51.believewireless.net
74.119.20.80	PTR	commerce-80.believewireless.net
74.119.20.80	A	goyacontemporary.com
74.119.20.80	A	mail.goyacontemporary.com
74.119.20.89	A	webmail.rosengrp.com
74.119.20.89	A	mail.rosengrp.com
74.119.20.122	A	horseshoeotb.com
74.119.20.133	A	pritchardbrown.com
74.119.20.153	A	kerio.chesachurch.com
74.119.20.155	PTR	commerce-155.believewireless.net
74.119.20.157	A	stockfieldphoto.com
74.119.20.233	PTR	commerce-233.believewireless.net