Robtex

Up: 181.18.0.0/16
Can't show all results, try to descend to a more specific CIDR
Down left: 181.18.0.0/18
Down right: 181.18.64.0/18

IP	Type	Hostname
181.18.0.0	PTR	181-18-0-0.dyn.movilnet.com.ve
181.18.0.68	A	181-18-0-68.dyn.movilnet.com.ve
181.18.0.130	PTR	181-18-0-130.dyn.movilnet.com.ve
181.18.0.203	A	181-18-0-203.dyn.movilnet.com.ve
181.18.0.236	A	181-18-0-236.dyn.movilnet.com.ve
181.18.0.255	A	181-18-0-255.dyn.movilnet.com.ve
181.18.3.242	A+PTR	181-18-3-242.dyn.movilnet.com.ve
181.18.5.202	A+PTR	181-18-5-202.dyn.movilnet.com.ve
181.18.14.2	A+PTR	181-18-14-2.dyn.movilnet.com.ve
181.18.19.249	A+PTR	181-18-19-249.dyn.movilnet.com.ve
181.18.20.105	PTR	181-18-20-105.dyn.movilnet.com.ve
181.18.21.96	A+PTR	181-18-21-96.dyn.movilnet.com.ve
181.18.21.120	PTR	181-18-21-120.dyn.movilnet.com.ve
181.18.22.75	PTR	181-18-22-75.dyn.movilnet.com.ve
181.18.27.75	PTR	181-18-27-75.dyn.movilnet.com.ve
181.18.29.176	PTR	181-18-29-176.dyn.movilnet.com.ve
181.18.34.27	A+PTR	181-18-34-27.dyn.movilnet.com.ve
181.18.35.169	PTR	181-18-35-169.dyn.movilnet.com.ve
181.18.36.2	A+PTR	181-18-36-2.dyn.movilnet.com.ve
181.18.37.198	A+PTR	181-18-37-198.dyn.movilnet.com.ve
181.18.44.228	PTR	181-18-44-228.dyn.movilnet.com.ve
181.18.49.34	PTR	181-18-49-34.dyn.movilnet.com.ve
181.18.51.124	A+PTR	181-18-51-124.dyn.movilnet.com.ve
181.18.51.191	A+PTR	181-18-51-191.dyn.movilnet.com.ve
181.18.54.250	A+PTR	181-18-54-250.dyn.movilnet.com.ve
181.18.61.61	PTR	181-18-61-61.dyn.movilnet.com.ve
181.18.61.68	A+PTR	181-18-61-68.dyn.movilnet.com.ve
181.18.62.161	PTR	181-18-62-161.dyn.movilnet.com.ve
181.18.62.205	PTR	181-18-62-205.dyn.movilnet.com.ve
181.18.62.235	PTR	181-18-62-235.dyn.movilnet.com.ve
181.18.65.165	A+PTR	181-18-65-165.dyn.movilnet.com.ve
181.18.70.41	PTR	181-18-70-41.dyn.movilnet.com.ve
181.18.70.232	A+PTR	181-18-70-232.dyn.movilnet.com.ve
181.18.70.242	A+PTR	181-18-70-242.dyn.movilnet.com.ve
181.18.71.187	PTR	181-18-71-187.dyn.movilnet.com.ve
181.18.79.86	A+PTR	181-18-79-86.dyn.movilnet.com.ve
181.18.81.149	PTR	181-18-81-149.dyn.movilnet.com.ve
181.18.86.64	PTR	181-18-86-64.dyn.movilnet.com.ve
181.18.91.6	A	181-18-91-6.dyn.movilnet.com.ve
181.18.91.20	A	181-18-91-20.dyn.movilnet.com.ve
181.18.91.27	A	181-18-91-27.dyn.movilnet.com.ve
181.18.91.59	A	181-18-91-59.dyn.movilnet.com.ve
181.18.91.130	A+PTR	181-18-91-130.dyn.movilnet.com.ve
181.18.91.139	A	181-18-91-139.dyn.movilnet.com.ve
181.18.91.155	A	181-18-91-155.dyn.movilnet.com.ve
181.18.91.184	A	181-18-91-184.dyn.movilnet.com.ve
181.18.97.4	A+PTR	181-18-97-4.dyn.movilnet.com.ve
181.18.97.62	A+PTR	181-18-97-62.dyn.movilnet.com.ve
181.18.97.131	A+PTR	181-18-97-131.dyn.movilnet.com.ve
181.18.98.88	PTR	181-18-98-88.dyn.movilnet.com.ve
181.18.107.35	PTR	181-18-107-35.dyn.movilnet.com.ve
181.18.109.153	A+PTR	181-18-109-153.dyn.movilnet.com.ve
181.18.110.124	A+PTR	181-18-110-124.dyn.movilnet.com.ve
181.18.110.200	A+PTR	181-18-110-200.dyn.movilnet.com.ve
181.18.110.221	A+PTR	181-18-110-221.dyn.movilnet.com.ve
181.18.113.134	PTR	181-18-113-134.dyn.movilnet.com.ve
181.18.114.109	PTR	181-18-114-109.dyn.movilnet.com.ve
181.18.122.255	PTR	181-18-122-255.dyn.movilnet.com.ve
181.18.125.165	PTR	181-18-125-165.dyn.movilnet.com.ve