Robtex

Up: 91.221.72.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 91.221.74.0/24
Down right: 91.221.75.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
91.221.74.0	PTR	dynamic-customer.inet.dp.ua
91.221.74.1	A+PTR	planeta.com.ua
91.221.74.1	A	planeta.dp.ua
91.221.74.1	A	ns.planeta.com.ua
91.221.74.2	PTR	dynamic-customer.inet.dp.ua
91.221.74.3	PTR	dynamic-customer.inet.dp.ua
91.221.74.20	PTR	dynamic-customer.i-net.dp.ua
91.221.74.51	PTR	dynamic-customer.inet.dp.ua
91.221.74.60	PTR	dynamic-customer.i-net.dp.ua
91.221.74.97	PTR	dynamic-customer.i-net.dp.ua
91.221.74.101	PTR	dynamic-customer.inet.dp.ua
91.221.74.103	PTR	dynamic-customer.i-net.dp.ua
91.221.74.146	PTR	mail.e-science.ru
91.221.74.146	A	w.r-g-d.org
91.221.74.146	A	r-g-d.org
91.221.74.147	PTR	dynamic-customer.inet.dp.ua
91.221.74.148	PTR	dynamic-customer.inet.dp.ua
91.221.74.148	A	vermenko.ru
91.221.74.148	A	notelib.ru
91.221.74.149	PTR	dynamic-customer.inet.dp.ua
91.221.74.151	PTR	dynamic-customer.i-net.dp.ua
91.221.74.151	A	e-science.ru
91.221.74.151	A	*.e-science.ru
91.221.74.168	PTR	dynamic-customer.i-net.dp.ua
91.221.74.218	PTR	dynamic-customer.inet.dp.ua
91.221.74.250	PTR	dynamic-customer.inet.dp.ua
91.221.75.0	PTR	dynamic-customer.inet.dp.ua
91.221.75.1	PTR	dynamic-customer.inet.dp.ua
91.221.75.8	PTR	dynamic-customer.inet.dp.ua
91.221.75.11	PTR	dynamic-customer.inet.dp.ua
91.221.75.19	PTR	dynamic-customer.inet.dp.ua
91.221.75.24	PTR	dynamic-customer.inet.dp.ua
91.221.75.32	PTR	dynamic-customer.inet.dp.ua
91.221.75.33	PTR	dynamic-customer.inet.dp.ua
91.221.75.36	PTR	dynamic-customer.inet.dp.ua
91.221.75.59	PTR	dynamic-customer.inet.dp.ua
91.221.75.66	PTR	dynamic-customer.inet.dp.ua
91.221.75.69	PTR	dynamic-customer.inet.dp.ua
91.221.75.82	PTR	dynamic-customer.inet.dp.ua
91.221.75.89	PTR	dynamic-customer.inet.dp.ua
91.221.75.104	PTR	dynamic-customer.inet.dp.ua
91.221.75.105	PTR	dynamic-customer.inet.dp.ua
91.221.75.116	PTR	dynamic-customer.inet.dp.ua
91.221.75.125	PTR	dynamic-customer.inet.dp.ua
91.221.75.134	PTR	dynamic-customer.inet.dp.ua
91.221.75.136	PTR	dynamic-customer.inet.dp.ua
91.221.75.143	PTR	dynamic-customer.inet.dp.ua
91.221.75.154	PTR	dynamic-customer.inet.dp.ua
91.221.75.155	PTR	dynamic-customer.inet.dp.ua
91.221.75.158	PTR	dynamic-customer.inet.dp.ua
91.221.75.161	PTR	dynamic-customer.inet.dp.ua
91.221.75.163	PTR	dynamic-customer.inet.dp.ua
91.221.75.182	PTR	dynamic-customer.inet.dp.ua
91.221.75.184	PTR	dynamic-customer.inet.dp.ua
91.221.75.195	PTR	dynamic-customer.inet.dp.ua
91.221.75.198	PTR	dynamic-customer.inet.dp.ua
91.221.75.200	PTR	dynamic-customer.inet.dp.ua
91.221.75.201	PTR	dynamic-customer.inet.dp.ua
91.221.75.216	PTR	dynamic-customer.inet.dp.ua
91.221.75.218	PTR	dynamic-customer.inet.dp.ua
91.221.75.221	PTR	dynamic-customer.inet.dp.ua
91.221.75.237	PTR	dynamic-customer.inet.dp.ua
91.221.75.239	PTR	dynamic-customer.inet.dp.ua
91.221.75.250	PTR	dynamic-customer.inet.dp.ua
91.221.75.255	PTR	dynamic-customer.inet.dp.ua