Robtex

Up: 80.240.224.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 80.240.240.0/21
Down right: 80.240.248.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
80.240.240.2	A+PTR	ns.kursknet.ru
80.240.240.2	A	www.jgmk.kursknet.ru
80.240.240.2	A	www.kursknet.ru
80.240.240.3	PTR	deep.kursknet.ru
80.240.240.19	PTR	hh19.kursknet.ru
80.240.240.22	A	zabbix.kursknet.ru
80.240.240.22	A	wispa.kursknet.ru
80.240.240.32	PTR	hh32.kursknet.ru
80.240.240.34	PTR	hh34.kursknet.ru
80.240.240.66	PTR	hh66.kursknet.ru
80.240.240.99	PTR	hh99.kursknet.ru
80.240.240.131	PTR	hh131.kursknet.ru
80.240.241.34	PTR	proxy-upr.kursknet.ru
80.240.241.64	PTR	pvt2-64.kursknet.ru
80.240.241.129	PTR	proxy-upr.kursknet.ru
80.240.241.142	A	proxy-upr3.kursknet.ru
80.240.242.19	PTR	mss-nat-019.kursknet.ru
80.240.242.51	A	kursk.speedtest.rt.ru
80.240.242.100	A	ps.kursknet.ru
80.240.242.110	A+PTR	ns2.kursknet.ru
80.240.243.16	PTR	80-240-243-16.static.kursknet.ru
80.240.243.33	PTR	mail.kunpp.ru
80.240.248.2	PTR	msn-poll-net248-2.kursknet.ru
80.240.248.42	A	mail.kursk-auto.ru
80.240.248.42	A	globalmarket.center
80.240.248.194	PTR	msn-poll-net248-194.kursknet.ru
80.240.248.196	A	ftis.ru
80.240.248.209	PTR	msn-poll-net248-209.kursknet.ru
80.240.248.209	A	rylsk-syr.com
80.240.248.250	A	kooplgov.ru
80.240.248.250	A	mail.kooplgov.ru
80.240.249.33	PTR	www.kunpp.info
80.240.249.33	PTR	www.kunpp.ru
80.240.249.33	A	mail.odsk.ru
80.240.249.97	PTR	msn-poll-net249-97.kursknet.ru
80.240.249.97	A	provinc.agroholding.ru
80.240.249.125	A	borodanenko.ru
80.240.249.156	A	artelmail.ru
80.240.249.177	PTR	msn-poll-net249-177.kursknet.ru
80.240.249.195	A	xn--90aoe8ac.xn--p1ai
80.240.249.243	A	itfkursk.ru
80.240.250.245	A	rshb.kursknet.ru
80.240.250.253	A	kursk.mansurovoagro.ru
80.240.252.10	A	artos-h.ru
80.240.252.10	A	mail.artos-h.ru
80.240.252.10	A	ns.artos-h.ru
80.240.252.82	A	mail-kur1.vkoregion.ru
80.240.252.146	PTR	msn-poll-net252-146.kursknet.ru
80.240.252.146	A	regionopt.net
80.240.252.146	A	mx2.regionopt.net
80.240.253.67	PTR	msn-poll-net253-67.kursknet.ru
80.240.253.177	A	smtp.zapoved-kursk.ru
80.240.254.247	A	nu-ross.ru