Robtex

Up: 218.100.80.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 218.100.80.0/23
Down right: 218.100.82.0/23

IP	Type	Hostname
218.100.82.255	A+PTR	ip-255.82.100.218.pacificix.com
218.100.83.13	A+PTR	ip-13.83.100.218.pacificix.com
218.100.83.20	A+PTR	ip-20.83.100.218.pacificix.com
218.100.83.58	A+PTR	ip-58.83.100.218.pacificix.com
218.100.83.59	A+PTR	ip-59.83.100.218.pacificix.com
218.100.83.77	A+PTR	ip-77.83.100.218.pacificix.com
218.100.83.110	A+PTR	ip-110.83.100.218.pacificix.com
218.100.83.118	A+PTR	ip-118.83.100.218.pacificix.com
218.100.83.131	A+PTR	ip-131.83.100.218.pacificix.com
218.100.83.165	A+PTR	ip-165.83.100.218.pacificix.com
218.100.83.171	A+PTR	ip-171.83.100.218.pacificix.com
218.100.83.215	A+PTR	ip-215.83.100.218.pacificix.com
218.100.83.219	A+PTR	ip-219.83.100.218.pacificix.com
218.100.83.228	A+PTR	ip-228.83.100.218.pacificix.com
218.100.83.255	PTR	ip-255.83.100.218.pacificix.com