Robtex

Up: 77.40.0.0/17
Can't show all results, try to descend to a more specific CIDR
Down left: 77.40.64.0/19
Down right: 77.40.96.0/19
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
77.40.64.64	PTR	64.64.pppoe.mari-el.ru
77.40.64.194	PTR	194.64.pppoe.mari-el.ru
77.40.64.195	PTR	195.64.pppoe.mari-el.ru
77.40.67.130	PTR	130.67.pppoe.mari-el.ru
77.40.67.193	PTR	193.67.pppoe.mari-el.ru
77.40.67.195	PTR	195.67.pppoe.mari-el.ru
77.40.69.1	PTR	1.69.pppoe.mari-el.ru
77.40.69.128	PTR	portaledu.mari-el.ru
77.40.70.64	PTR	64.70.pppoe.mari-el.ru
77.40.72.185	A	fronty2073.org
77.40.76.4	PTR	4.76.pppoe.mari-el.ru
77.40.76.64	PTR	64.76.pppoe.mari-el.ru
77.40.76.66	PTR	66.76.pppoe.mari-el.ru
77.40.78.1	PTR	1.78.pppoe.mari-el.ru
77.40.78.2	PTR	2.78.pppoe.mari-el.ru
77.40.83.65	PTR	65.83.pppoe.mari-el.ru
77.40.83.131	PTR	131.83.pppoe.mari-el.ru
77.40.83.194	PTR	194.83.pppoe.mari-el.ru
77.40.85.128	PTR	128.85.pppoe.mari-el.ru
77.40.87.128	PTR	128.87.pppoe.mari-el.ru
77.40.89.193	PTR	193.89.pppoe.mari-el.ru
77.40.90.65	PTR	65.90.pppoe.mari-el.ru
77.40.90.192	PTR	192.90.pppoe.mari-el.ru
77.40.90.194	PTR	194.90.pppoe.mari-el.ru
77.40.93.4	PTR	4.93.pppoe.mari-el.ru
77.40.94.195	PTR	195.94.pppoe.mari-el.ru
77.40.95.195	PTR	195.95.pppoe.mari-el.ru
77.40.97.195	PTR	195.97.pppoe.mari-el.ru
77.40.98.193	PTR	193.98.pppoe.mari-el.ru
77.40.99.64	PTR	64.99.pppoe.mari-el.ru
77.40.100.4	PTR	4.100.pppoe.mari-el.ru
77.40.105.65	PTR	65.105.pppoe.mari-el.ru
77.40.105.194	PTR	194.105.pppoe.mari-el.ru
77.40.111.129	PTR	129.111.mari-el.ru
77.40.112.72	A	baltimoreelectricalcontractor.com
77.40.112.72	A	aline-gsm.ru
77.40.114.2	PTR	mari-el.ru
77.40.114.2	A	relay3.relinfo.ru
77.40.115.66	PTR	66.115.relinfo.ru
77.40.115.192	PTR	192.115.relinfo.ru
77.40.116.3	PTR	3.116.relinfo.ru
77.40.116.128	PTR	128.116.relinfo.ru
77.40.117.178	A	mail.yolaonline.net
77.40.120.2	PTR	ns1.marstu.net
77.40.120.2	A	ns3.marstu.net
77.40.120.3	PTR	ns2.marstu.net
77.40.121.3	A	xn----7sbyelb3a1i.xn--p1ai
77.40.121.3	A	xn-----6kcbcxwdjfjii9ankh1b8o.xn--p1ai
77.40.121.4	A	pgu.gov.mari.ru
77.40.122.64	PTR	64.122.mari-el.ru
77.40.122.129	PTR	129.122.mari-el.ru
77.40.122.193	PTR	193.122.mari-el.ru
77.40.123.50	A	mail1.marnpz.ru
77.40.123.101	A	www.marienergosbyt.ru
77.40.123.101	A	marienergosbyt.ru
77.40.123.125	A	mail.marnpz.ru
77.40.123.149	A	relay2.010.pfr.ru
77.40.123.150	A	s010.010.pfr.ru
77.40.123.178	A	maripogoda.ru
77.40.124.10	A	hr1.donatgleen.com
77.40.124.10	A	www.nata-info.ru
77.40.124.10	A	www.nata-info.com
77.40.124.140	A	tv.mari.ru
77.40.124.140	A	ns1.tv.mari.ru
77.40.124.140	A	vdm.betacie.com
77.40.124.145	A	post2.energy.mari.ru
77.40.124.198	A	ns1.maripost.ru
77.40.124.198	A	maripost.ru
77.40.124.198	A	ufps.mari.ru
77.40.125.33	A	relay.sberbank12.org
77.40.125.33	A	sberbank12.org
77.40.125.60	A	mail.sberbank12.org
77.40.126.192	PTR	192.126.mari-el.ru
77.40.126.193	PTR	193.126.mari-el.ru
77.40.127.1	A+PTR	gov.mari.ru
77.40.127.1	A	www.gov.mari.ru
77.40.127.2	PTR	2.127.gov.mari.ru
77.40.127.2	A	smtp.gov.mari.ru
77.40.127.147	A	do.mari-el.gov.ru
77.40.127.154	A	pgu.gov.mari.ru
77.40.127.160	A	xn----7sbbbttdieihi6amkg9a0p.xn--p1ai
77.40.127.160	A	mari-el.gov.ru