Robtex

Up: 74.123.64.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 74.123.72.0/22
Down right: 74.123.76.0/22

IP	Type	Hostname
74.123.72.4	PTR	74-123-72-4.mgwnet.com
74.123.72.4	A	ns1.mgwnet.us
74.123.72.11	PTR	74-123-72-11.mgwnet.com
74.123.72.11	A	mgwnet.us
74.123.72.11	A	mgw-dc2.mgwnet.us
74.123.72.61	A	sip.mgwnet.com
74.123.72.178	A	degray.net
74.123.73.224	PTR	74-123-73-224.mgwnet.com
74.123.74.4	A	ns2.mgwnet.us
74.123.74.6	A	dc-6cf537cb.blackswanstaunton.com
74.123.74.6	A	dc-38f79d61e0e7.blackswanstaunton.com
74.123.74.6	A	mgwtel.com
74.123.74.8	PTR	74-123-74-008.dyn.mgwnet.us
74.123.74.18	A+PTR	mail.mgwnetworks.com
74.123.74.18	A+PTR	mail.mgwnet.us
74.123.74.25	A+PTR	dns2.mgwnet.us
74.123.74.28	A	nagios.mgwnet.us
74.123.74.28	A	dns1.mgwnet.us
74.123.74.30	A	mgwnet.us
74.123.74.69	A	mail.mgwnetworks.com
74.123.74.69	A	ns1.mgwnetworks.com
74.123.74.69	A	ns2.mgwnetworks.com
74.123.74.73	PTR	74-123-74-73.mgwnetworks.com
74.123.74.209	PTR	74-123-74-209.mgwnet.com
74.123.77.17	PTR	74-123-77-17.mgwnet.com
74.123.77.27	PTR	74-123-77-27.mgwnet.com
74.123.77.32	PTR	74-123-77-32.mgwnet.com
74.123.77.34	PTR	74-123-77-34.mgwnet.com
74.123.77.227	A	vpn.bath.k12.va.us
74.123.77.229	A	mail.bath.k12.va.us
74.123.77.233	A	sharepoint.bath.k12.va.us
74.123.77.237	A	hvac.bath.k12.va.us
74.123.77.250	PTR	74-123-77-250.mgwnet.com
74.123.78.51	PTR	74-123-78-51.mgwnet.com
74.123.78.201	PTR	74-123-78-201.mgwnet.com
74.123.79.2	PTR	74-123-79-2.mgwnet.com
74.123.79.3	PTR	74-123-79-3.mgwnet.com
74.123.79.10	PTR	74-123-79-10.mgwnet.com
74.123.79.10	A	mail1.degrayconsulting.com
74.123.79.32	PTR	74-123-79-32.mgwnet.com
74.123.79.34	PTR	74-123-79-34.mgwnet.com
74.123.79.42	PTR	74-123-79-42.mgwnet.com
74.123.79.50	PTR	74-123-79-50.mgwnet.com
74.123.79.67	PTR	74-123-79-67.mgwnet.com
74.123.79.72	PTR	74-123-79-72.mgwnet.com
74.123.79.81	PTR	74-123-79-81.mgwnet.com
74.123.79.89	PTR	74-123-79-89.mgwnet.com
74.123.79.91	PTR	74-123-79-91.mgwnet.com
74.123.79.105	PTR	74-123-79-105.mgwnet.com
74.123.79.120	PTR	74-123-79-120.mgwnet.com
74.123.79.145	PTR	74-123-79-145.mgwnet.com
74.123.79.147	PTR	74-123-79-147.mgwnet.com
74.123.79.155	PTR	74-123-79-155.mgwnet.com
74.123.79.162	PTR	74-123-79-162.mgwnet.com
74.123.79.163	PTR	74-123-79-163.mgwnet.com
74.123.79.177	PTR	74-123-79-177.mgwnet.com
74.123.79.186	PTR	74-123-79-186.mgwnet.com
74.123.79.194	PTR	74-123-79-194.mgwnet.com
74.123.79.218	PTR	74-123-79-218.mgwnet.com
74.123.79.232	PTR	74-123-79-232.mgwnet.com
74.123.79.234	PTR	74-123-79-234.mgwnet.com
74.123.79.248	PTR	74-123-79-248.mgwnet.com
74.123.79.249	PTR	74-123-79-249.mgwnet.com
74.123.79.251	PTR	74-123-79-251.mgwnet.com