Robtex

Up: 72.73.32.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 72.73.48.0/21
Down right: 72.73.56.0/21

IP	Type	Hostname
72.73.49.1	PTR	client-72-73-49-1.east.verizon.net
72.73.49.2	PTR	client-72-73-49-2.east.verizon.net
72.73.49.3	PTR	client-72-73-49-3.east.verizon.net
72.73.49.4	PTR	client-72-73-49-4.east.verizon.net
72.73.49.16	PTR	client-72-73-49-16.east.verizon.net
72.73.49.17	PTR	client-72-73-49-17.east.verizon.net
72.73.49.18	PTR	client-72-73-49-18.east.verizon.net
72.73.49.19	PTR	client-72-73-49-19.east.verizon.net
72.73.49.32	PTR	client-72-73-49-32.east.verizon.net
72.73.49.33	PTR	client-72-73-49-33.east.verizon.net
72.73.49.34	PTR	pop.corprisk.com
72.73.49.35	PTR	client-72-73-49-35.east.verizon.net
72.73.49.48	PTR	client-72-73-49-48.east.verizon.net
72.73.49.49	PTR	client-72-73-49-49.east.verizon.net
72.73.49.50	PTR	client-72-73-49-50.east.verizon.net
72.73.49.51	PTR	client-72-73-49-51.east.verizon.net
72.73.49.64	PTR	client-72-73-49-64.east.verizon.net
72.73.49.65	PTR	client-72-73-49-65.east.verizon.net
72.73.49.66	PTR	client-72-73-49-66.east.verizon.net
72.73.49.67	PTR	client-72-73-49-67.east.verizon.net
72.73.49.80	PTR	client-72-73-49-80.east.verizon.net
72.73.49.81	PTR	client-72-73-49-81.east.verizon.net
72.73.49.82	PTR	client-72-73-49-82.east.verizon.net
72.73.49.83	PTR	client-72-73-49-83.east.verizon.net
72.73.49.96	PTR	client-72-73-49-96.east.verizon.net
72.73.49.97	PTR	client-72-73-49-97.east.verizon.net
72.73.49.98	PTR	client-72-73-49-98.east.verizon.net
72.73.49.99	PTR	client-72-73-49-99.east.verizon.net
72.73.49.112	PTR	client-72-73-49-112.east.verizon.net
72.73.49.113	PTR	client-72-73-49-113.east.verizon.net
72.73.49.114	PTR	client-72-73-49-114.east.verizon.net
72.73.49.115	PTR	client-72-73-49-115.east.verizon.net
72.73.49.128	PTR	client-72-73-49-128.east.verizon.net
72.73.49.129	PTR	client-72-73-49-129.east.verizon.net
72.73.49.130	PTR	client-72-73-49-130.east.verizon.net
72.73.49.131	PTR	client-72-73-49-131.east.verizon.net
72.73.49.144	PTR	client-72-73-49-144.east.verizon.net
72.73.49.145	PTR	client-72-73-49-145.east.verizon.net
72.73.49.146	PTR	client-72-73-49-146.east.verizon.net
72.73.49.147	PTR	client-72-73-49-147.east.verizon.net
72.73.49.160	PTR	client-72-73-49-160.east.verizon.net
72.73.49.161	PTR	client-72-73-49-161.east.verizon.net
72.73.49.162	PTR	client-72-73-49-162.east.verizon.net
72.73.49.163	PTR	client-72-73-49-163.east.verizon.net
72.73.49.176	PTR	client-72-73-49-176.east.verizon.net
72.73.49.177	PTR	client-72-73-49-177.east.verizon.net
72.73.49.178	PTR	client-72-73-49-178.east.verizon.net
72.73.49.179	PTR	client-72-73-49-179.east.verizon.net
72.73.49.192	PTR	client-72-73-49-192.east.verizon.net
72.73.49.193	PTR	client-72-73-49-193.east.verizon.net
72.73.49.194	PTR	client-72-73-49-194.east.verizon.net
72.73.49.195	PTR	client-72-73-49-195.east.verizon.net
72.73.49.208	PTR	client-72-73-49-208.east.verizon.net
72.73.49.209	PTR	client-72-73-49-209.east.verizon.net
72.73.49.210	PTR	client-72-73-49-210.east.verizon.net
72.73.49.211	PTR	client-72-73-49-211.east.verizon.net
72.73.49.224	PTR	client-72-73-49-224.east.verizon.net
72.73.49.225	PTR	client-72-73-49-225.east.verizon.net
72.73.49.226	PTR	client-72-73-49-226.east.verizon.net
72.73.49.227	PTR	client-72-73-49-227.east.verizon.net
72.73.49.240	PTR	client-72-73-49-240.east.verizon.net
72.73.49.241	PTR	client-72-73-49-241.east.verizon.net
72.73.49.242	PTR	client-72-73-49-242.east.verizon.net
72.73.49.243	PTR	client-72-73-49-243.east.verizon.net
72.73.50.67	PTR	mail.mcca.com
72.73.50.186	PTR	mail.burgerscabinets.com
72.73.50.194	PTR	chromium.catalist.us
72.73.50.195	PTR	mail-gw.datawarehousellc.com
72.73.50.198	PTR	mail.datawarehousellc.com
72.73.51.11	PTR	mail.mortgage180.com
72.73.51.26	PTR	mail.armyhistory.org
72.73.51.49	PTR	gw.dmr-hvac.com
72.73.51.50	PTR	mail.dmr-hvac.com
72.73.51.52	PTR	rdp.dmr-hvac.com
72.73.51.67	PTR	mail.bacweb.org
72.73.51.107	PTR	mail.marcassoc.com
72.73.52.13	A+PTR	mail.vi.org
72.73.52.58	PTR	mail.tash.org
72.73.52.98	PTR	mail.contractcarpetsystems.com
72.73.52.115	PTR	xena.paulvi.net
72.73.52.117	PTR	mail.paulvi.net
72.73.52.118	PTR	smtp.paulvi.net
72.73.52.154	PTR	mail.northamericanland.com
72.73.52.195	PTR	mailbox.defensegp.us
72.73.52.196	PTR	locust.cira-dc.com
72.73.52.197	PTR	host.defensegp.us
72.73.52.198	PTR	host.defensegp.us
72.73.52.208	PTR	host.defensegp.us
72.73.52.209	PTR	host.defensegp.us
72.73.52.210	PTR	host.defensegp.us
72.73.52.211	PTR	host.defensegp.us
72.73.52.229	PTR	brownscar.com
72.73.52.230	PTR	brownscar.com
72.73.53.5	PTR	m15.arl-edge-rtr3.verizon-gni.net
72.73.53.9	PTR	s5-0-0-11-6-0.arl-edge-rtr3.verizon-gni.net
72.73.53.13	PTR	s1-0-0-28-0.arl-edge-rtr3.verizon-gni.net
72.73.53.17	PTR	s5-0-0-6-18-0.arl-edge-rtr3.verizon-gni.net
72.73.53.21	PTR	s5-1-3-28-1.arl-edge-rtr4.verizon-gni.net
72.73.53.25	PTR	s5-0-0-9-23-0.arl-edge-rtr3.verizon-gni.net
72.73.53.29	PTR	m20.arl-edge-rtr3.verizon-gni.net
72.73.53.33	PTR	s5-0-0-11-24-1.arl-edge-rtr3.verizon-gni.net
72.73.53.34	PTR	gw.hitachifoundation.org
72.73.53.37	PTR	s5-0-0-10-5-0.arl-edge-rtr3.verizon-gni.net
72.73.53.41	PTR	s5-0-0-9-14-0.arl-edge-rtr3.verizon-gni.net
72.73.53.49	PTR	s5-0-0-11-26-0.arl-edge-rtr3.verizon-gni.net
72.73.53.53	PTR	s5-0-0-11-25-0.arl-edge-rtr3.verizon-gni.net
72.73.53.57	PTR	s5-0-0-11-25-1.arl-edge-rtr3.verizon-gni.net
72.73.53.73	PTR	s5-0-0-6-16-1.edge-rtr3.arl.verizon-gni.net
72.73.53.89	PTR	s5-0-0-6-20-2.arl-edge-rtr3.verizon-gni.net
72.73.53.93	PTR	s5-0-0-3-28-3.arl-edge-rtr3.verizon-gni.net
72.73.53.101	PTR	s5-0-0-3-13-0.edge-rtr3.arl.verizon-gni.net
72.73.53.105	PTR	s5-0-0-9-23-1.arl-edge-rtr3.verizon-gni.net
72.73.53.109	PTR	s5-0-0-9-28-1.arl-edge-rtr3.verizon-gni.net
72.73.53.113	PTR	s5-0-0-10-11-0.arl-edge-rtr3.verizon-gni.net
72.73.53.117	PTR	s5-0-0-9-22-0.arl-edge-rtr3.verizon-gni.net
72.73.53.121	PTR	s5-0-0-9-27-0.arl-edge-rtr3.verizon-gni.net
72.73.53.129	PTR	s5-0-0-11-27-0.arl-edge-rtr3.verizon-gni.net
72.73.53.137	PTR	s5-0-0-11-16-0.arl-edge-rtr3.verizon-gni.net
72.73.53.141	PTR	s5-0-0-10-12-0.arl-edge-rtr3.verizon-gni.net
72.73.53.149	PTR	s5-0-0-10-14-0.arl-edge-rtr3.verizon-gni.net
72.73.53.153	PTR	s5-0-0-10-15-0.arl-edge-rtr3.verizon-gni.net
72.73.53.157	PTR	s5-0-0-11-23-0.edge-rtr3.arl.verizon-gni.net
72.73.53.161	PTR	s6-0-0-11-23-0.edge-rtr3.arl.verizon-gni.net
72.73.53.165	PTR	s5-0-0-1-6-1.arl-edge-rtr3.verizon-gni.net
72.73.53.169	PTR	s5-0-0-10-16-0.arl-edge-rtr3.verizon-gni.net
72.73.53.173	PTR	m22.arl-edge-rtr3.verizon-gni.net
72.73.53.177	PTR	s5-0-0-11-28-1.arl-edge-rtr3.verizon-gni.net
72.73.53.181	PTR	s5-0-0-6-21-0.edge-rtr3.arl.verizon-gni.net
72.73.53.185	PTR	s5-0-0-3-24-2.arl-edge-rtr3.verizon-gni.net
72.73.53.189	PTR	s5-0-0-10-20-0.edge-rtr3.arl.verizon-gni.net
72.73.53.193	PTR	s5-0-0-10-21-0.edge-rtr3.arl.verizon-gni.net
72.73.53.197	PTR	s5-0-0-10-19-0.edge-rtr3.arl.verizon-gni.net
72.73.53.201	PTR	s5-0-0-10-22-0.edge-rtr3.arl.verizon-gni.net
72.73.53.205	PTR	s5-0-0-10-23-0.edge-rtr3.arl.verizon-gni.net
72.73.53.209	PTR	s5-0-0-11-23-2.arl-edge-rtr3.verizon-gni.net
72.73.53.213	PTR	s5-0-0-9-24-0.arl-edge-rtr3.verizon-gni.net
72.73.53.217	PTR	s5-0-0-1-10-3.arl-edge-rtr3.verizon-gni.net
72.73.53.221	PTR	m23.arl-edge-rtr3.verizon-gni.net
72.73.53.225	PTR	s5-0-0-11-27-3.arl-edge-rtr3.verizon-gni.net
72.73.53.229	PTR	s5-0-0-10-24-0.arl-edge-rtr3.verizon-gni.net
72.73.53.233	PTR	s1-0-2-1-1.arl-edge-rtr3.verizon-gni.net
72.73.53.237	PTR	s5-0-0-3-25-2.arl-edge-rtr3.verizon-gni.net
72.73.53.241	PTR	s5-0-0-9-24-1.arl-edge-rtr3.verizon-gni.net
72.73.53.245	PTR	s6-0-0-11-22-0.arl-edge-rtr3.verizon-gni.net
72.73.53.249	PTR	s5-0-0-3-25-1.arl-edge-rtr3.verizon-gni.net
72.73.53.253	PTR	s5-0-0-9-25-0.arl-edge-rtr3.verizon-gni.net
72.73.54.35	PTR	mail.heritageinvestors.com
72.73.54.67	PTR	mail.savedarfur.org
72.73.54.68	PTR	mail.experiencecorps.org
72.73.54.70	PTR	mail.mrss.com
72.73.54.163	PTR	backup.bnsic.org
72.73.54.210	PTR	mail.inkllc.com
72.73.54.229	PTR	exmail.novafamilylaw.com
72.73.56.2	PTR	mail.defensegp.com
72.73.56.3	PTR	finance1.defensegp.com
72.73.56.5	PTR	front-end.defensegp.com
72.73.56.6	PTR	vpn-server.defensegp.com
72.73.56.148	PTR	mail.hitachifoundation.org
72.73.56.229	PTR	mail.visionaryproject.org
72.73.58.1	PTR	client-72-73-58-1.east.verizon.net
72.73.58.2	PTR	client-72-73-58-2.east.verizon.net
72.73.58.3	PTR	client-72-73-58-3.east.verizon.net
72.73.58.4	PTR	client-72-73-58-4.east.verizon.net
72.73.58.16	PTR	client-72-73-58-16.east.verizon.net
72.73.58.17	PTR	client-72-73-58-17.east.verizon.net
72.73.58.18	PTR	client-72-73-58-18.east.verizon.net
72.73.58.19	PTR	client-72-73-58-19.east.verizon.net
72.73.58.32	PTR	client-72-73-58-32.east.verizon.net
72.73.58.33	PTR	client-72-73-58-33.east.verizon.net
72.73.58.34	PTR	client-72-73-58-34.east.verizon.net
72.73.58.35	PTR	client-72-73-58-35.east.verizon.net
72.73.58.48	PTR	client-72-73-58-48.east.verizon.net
72.73.58.49	PTR	client-72-73-58-49.east.verizon.net
72.73.58.50	PTR	client-72-73-58-50.east.verizon.net
72.73.58.51	PTR	client-72-73-58-51.east.verizon.net
72.73.58.64	PTR	client-72-73-58-64.east.verizon.net
72.73.58.65	PTR	client-72-73-58-65.east.verizon.net
72.73.58.66	PTR	client-72-73-58-66.east.verizon.net
72.73.58.67	PTR	client-72-73-58-67.east.verizon.net
72.73.58.80	PTR	client-72-73-58-80.east.verizon.net
72.73.58.81	PTR	client-72-73-58-81.east.verizon.net
72.73.58.83	PTR	client-72-73-58-83.east.verizon.net
72.73.58.96	PTR	client-72-73-58-96.east.verizon.net
72.73.58.97	PTR	client-72-73-58-97.east.verizon.net
72.73.58.98	PTR	client-72-73-58-98.east.verizon.net
72.73.58.99	PTR	client-72-73-58-99.east.verizon.net
72.73.58.112	PTR	client-72-73-58-112.east.verizon.net
72.73.58.113	PTR	client-72-73-58-113.east.verizon.net
72.73.58.114	PTR	client-72-73-58-114.east.verizon.net
72.73.58.115	PTR	client-72-73-58-115.east.verizon.net
72.73.58.128	PTR	client-72-73-58-128.east.verizon.net
72.73.58.129	PTR	client-72-73-58-129.east.verizon.net
72.73.58.130	PTR	client-72-73-58-130.east.verizon.net
72.73.58.131	PTR	client-72-73-58-131.east.verizon.net
72.73.58.144	PTR	client-72-73-58-144.east.verizon.net
72.73.58.145	PTR	client-72-73-58-145.east.verizon.net
72.73.58.146	PTR	client-72-73-58-146.east.verizon.net
72.73.58.147	PTR	client-72-73-58-147.east.verizon.net
72.73.58.160	PTR	client-72-73-58-160.east.verizon.net
72.73.58.161	PTR	client-72-73-58-161.east.verizon.net
72.73.58.162	PTR	client-72-73-58-162.east.verizon.net
72.73.58.163	PTR	client-72-73-58-163.east.verizon.net
72.73.58.176	PTR	client-72-73-58-176.east.verizon.net
72.73.58.177	PTR	client-72-73-58-177.east.verizon.net
72.73.58.178	PTR	client-72-73-58-178.east.verizon.net
72.73.58.179	PTR	client-72-73-58-179.east.verizon.net
72.73.58.192	PTR	client-72-73-58-192.east.verizon.net
72.73.58.193	PTR	client-72-73-58-193.east.verizon.net
72.73.58.194	PTR	client-72-73-58-194.east.verizon.net
72.73.58.195	PTR	client-72-73-58-195.east.verizon.net
72.73.58.208	PTR	client-72-73-58-208.east.verizon.net
72.73.58.209	PTR	client-72-73-58-209.east.verizon.net
72.73.58.210	PTR	client-72-73-58-210.east.verizon.net
72.73.58.211	PTR	client-72-73-58-211.east.verizon.net
72.73.58.224	PTR	client-72-73-58-224.east.verizon.net
72.73.58.225	PTR	client-72-73-58-225.east.verizon.net
72.73.58.226	PTR	client-72-73-58-226.east.verizon.net
72.73.58.227	PTR	client-72-73-58-227.east.verizon.net
72.73.58.240	PTR	client-72-73-58-240.east.verizon.net
72.73.58.241	PTR	client-72-73-58-241.east.verizon.net
72.73.58.242	PTR	client-72-73-58-242.east.verizon.net
72.73.58.243	PTR	client-72-73-58-243.east.verizon.net
72.73.61.188	A	orbitzweddings.net
72.73.61.188	A	orbitzweddings.com
72.73.61.188	A	theidealbeach.com
72.73.62.154	PTR	mail.winklerpreserve.org
72.73.63.18	PTR	mail.bciva.com