Robtex

Up: 217.74.240.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 217.74.240.0/23
Down right: 217.74.242.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
217.74.240.9	PTR	217-74-240-9.kubangsm.ru
217.74.240.9	A	st1ug.mts.ru
217.74.241.1	A+PTR	mail.kuban.mts.ru
217.74.241.1	A	mail.kubangsm.ru
217.74.241.1	A	mail.volgograd.mts.ru
217.74.241.2	PTR	217-74-241-2.kubangsm.ru
217.74.241.2	A	ns02.aaanet.ru
217.74.241.5	PTR	www.kuban.mts.ru
217.74.241.5	A	www.kubangsm.ru
217.74.241.5	A	kubangsm.ru
217.74.241.10	A+PTR	ns2.kubangsm.ru
217.74.241.22	PTR	mailx.kubangsm.ru
217.74.241.24	PTR	217-74-241-24.kubangsm.ru
217.74.241.64	A	gw.kubangsm.ru
217.74.241.94	PTR	217-74-241-94.kubangsm.ru
217.74.241.94	A	ihelper.ug.mts.ru
217.74.241.106	A+PTR	mail.sms.kubangsm.ru
217.74.241.106	A	mailx.kubangsm.ru
217.74.242.2	PTR	217-74-242-2.kubangsm.ru
217.74.242.2	A	ns01.aaanet.ru
217.74.242.2	A	ns.aaanet.ru
217.74.242.5	PTR	lk-ext.ug.mts.ru
217.74.242.13	A	portal.aaanet.ru
217.74.242.18	PTR	217-74-242-18.kubangsm.ru
217.74.242.18	A	www.stroiplast.ru
217.74.242.18	A	rostovupack.ru
217.74.242.19	PTR	smtp01.aaanet.ru
217.74.242.20	A+PTR	mx01.aaanet.ru
217.74.242.20	A	mail.xn----itbbsdkhedpcui5l.xn--p1ai
217.74.242.20	A	relay.aaanet.ru
217.74.242.21	PTR	imap01.aaanet.ru
217.74.242.22	PTR	mx02.aaanet.ru
217.74.242.32	A	mail.ctsnet.ru
217.74.242.32	A	imap01.ctsnet.ru
217.74.242.35	A+PTR	imap01.trunkcom.ru
217.74.243.254	PTR	217-74-243-254.kubangsm.ru