Robtex

Up: 217.21.40.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 217.21.40.0/24
Down right: 217.21.41.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
217.21.40.14	PTR	0-b3.niks.by
217.21.40.65	PTR	vpn1.niks.by
217.21.40.66	PTR	0-b3.niks.by
217.21.40.70	PTR	0-b3.niks.by
217.21.40.74	PTR	0-b3.niks.by
217.21.40.78	PTR	0-b3.niks.by
217.21.40.82	PTR	0-b3.niks.by
217.21.40.86	PTR	0-b3.niks.by
217.21.40.90	PTR	0-b3.niks.by
217.21.40.94	PTR	0-b3.niks.by
217.21.40.197	A	wisewear.nl
217.21.40.197	A	jumbodeal.nl
217.21.40.197	A	hairrituals.com
217.21.40.222	PTR	0-b3.niks.by
217.21.41.4	A	kso.minsk.edu.by
217.21.41.4	A	dom5.minsk.edu.by
217.21.41.4	A	zolak.minsk.edu.by
217.21.41.6	A	ns2.estu.by
217.21.41.9	A	ns1.estu.by
217.21.41.11	PTR	mail.edu.by
217.21.41.44	PTR	mail.belarus-tractor.com
217.21.41.73	A	antelis.by
217.21.41.73	A	ns.antelis.by
217.21.41.112	A	html-web.ru
217.21.41.138	A	cdesbmt.by
217.21.41.141	A	sbcde.by
217.21.41.145	PTR	cmc.minsk.by
217.21.41.153	A+PTR	mail2.unistar.by
217.21.41.161	PTR	bsupc-gw.niks.by
217.21.41.161	A	www.touredu.by
217.21.41.161	A	touredu.by
217.21.41.197	A	smart-rent.net
217.21.41.203	PTR	sofia-203.niks.by