Robtex

Up: 91.210.88.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 91.210.88.0/23
Down right: 91.210.90.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
91.210.88.3	A+PTR	ns.uni-ruse.bg
91.210.88.3	A	ns.ru.acad.bg
91.210.88.7	A+PTR	vpn.uni-ruse.bg
91.210.88.12	A+PTR	ns2.uni-ruse.bg
91.210.88.12	A	ns2.ru.acad.bg
91.210.88.16	A+PTR	ms4.uni-ruse.bg
91.210.88.16	A	ms4.ru.acad.bg
91.210.88.18	A+PTR	mx1.uni-ruse.bg
91.210.88.18	A	mx1.ru.acad.bg
91.210.88.19	PTR	mx2.uni-ruse.bg
91.210.88.21	A	ms2.uni-ruse.bg
91.210.88.23	A+PTR	ntp2.uni-ruse.bg
91.210.88.24	A	rproxy.uni-ruse.bg
91.210.88.28	A	btlr2.eduroam.bg
91.210.88.36	A+PTR	speedtest.uni-ruse.bg
91.210.88.36	A	ns1.test-ipv6.uni-ruse.bg
91.210.88.36	A	test-ipv6.uni-ruse.bg
91.210.88.40	A+PTR	dell.uni-ruse.bg
91.210.88.40	A	as48155.net
91.210.88.41	PTR	ppp01.uni-ruse.bg
91.210.88.42	PTR	ppp02.uni-ruse.bg
91.210.88.42	A	mirrors.uni-ruse.bg
91.210.88.62	A+PTR	proxy2.uni-ruse.bg
91.210.88.69	A+PTR	www.uni-ruse.bg
91.210.88.69	A	www.ru.acad.bg
91.210.88.69	A	ru.acad.bg
91.210.88.86	A	plazmite.uni-ruse.bg
91.210.88.90	A+PTR	nat-out.uni-ruse.bg
91.210.88.203	A+PTR	node-3.uni-ruse.bg
91.210.88.247	A+PTR	isidsrv1.ecs.uni-ruse.bg
91.210.88.248	A	skyfly.ecs.uni-ruse.bg
91.210.88.249	PTR	isidsrv2.ecs.uni-ruse.bg
91.210.88.249	A	ibset.eu
91.210.88.249	A	www.elearning-conf.eu
91.210.89.1	PTR	gate-89.uni-ruse.bg
91.210.89.118	PTR	pppoe-118.uni-ruse.bg
91.210.89.137	PTR	pppoe-137.uni-ruse.bg
91.210.90.129	A+PTR	pppoe-90-129.uni-ruse.bg
91.210.91.27	A	pppoe-91-27.uni-ruse.bg
91.210.91.158	A+PTR	pppoe-91-158.uni-ruse.bg
91.210.91.172	A+PTR	pppoe-91-172.uni-ruse.bg
91.210.91.255	A+PTR	broadcast-91-255.uni-ruse.bg