Robtex

Up: 80.76.128.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 80.76.128.0/23
Down right: 80.76.130.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
80.76.128.1	PTR	1.128.76.80.tetra.samara.ru
80.76.128.46	PTR	46.128.76.80.tetra.samara.ru
80.76.128.54	PTR	mail.nk.rn-inform.ru
80.76.128.57	PTR	57.128.76.80.tetra.samara.ru
80.76.128.62	A+PTR	mail.minfin-samara.ru
80.76.128.154	PTR	154.128.76.80.tetra.samara.ru
80.76.128.154	A	volgabit.ru
80.76.129.2	PTR	ns.vkd.ru
80.76.129.14	PTR	mail.vkd.ru
80.76.129.16	PTR	16.129.76.80.tetra.samara.ru
80.76.129.20	A	partsguys.com
80.76.129.30	A+PTR	mail.amond.ru
80.76.129.30	A	ns.amond.ru
80.76.129.50	PTR	50.129.76.80.tetra.samara.ru
80.76.129.50	A	switch-sam.infopac.ru
80.76.129.51	A	voip-smr1.infopac.ru
80.76.129.64	PTR	64.129.76.80.tetra.samara.ru
80.76.129.66	PTR	chariot.webzavod.ru
80.76.129.66	A	probir-ka.ru
80.76.129.66	A	it-treider.ru
80.76.129.68	PTR	68.129.76.80.tetra.samara.ru
80.76.129.68	A	ar-tana.ru
80.76.129.68	A	npo-leader.com
80.76.129.69	PTR	69.129.76.80.tetra.samara.ru
80.76.129.70	PTR	bicycle.webzavod.ru
80.76.129.98	PTR	post.progress-it.ru
80.76.129.99	A+PTR	hosting.progress-it.ru
80.76.129.121	PTR	mail.progress-it.ru
80.76.129.125	PTR	mail.progress-it.ru
80.76.129.127	PTR	127.129.76.80.tetra.samara.ru
80.76.129.128	PTR	128.129.76.80.tetra.samara.ru
80.76.129.143	PTR	mail.catv-samara.ru
80.76.129.144	PTR	144.129.76.80.tetra.samara.ru
80.76.129.169	PTR	169.129.76.80.tetra.samara.ru
80.76.129.220	A	mail3.nk.rn-inform.ru
80.76.129.226	PTR	226.129.76.80.tetra.samara.ru
80.76.129.226	A	benedict.webzavod.ru
80.76.129.234	A+PTR	iserv.webzavod.ru
80.76.129.248	PTR	248.129.76.80.tetra.samara.ru
80.76.129.248	A	www.icity.ru
80.76.129.248	A	open.icity.ru
80.76.129.250	A+PTR	mail.webzavod.ru
80.76.130.34	PTR	baza.inform-s.net
80.76.130.34	A	ns3.inform-s.net
80.76.130.34	A	ns4.inform-s.com
80.76.130.50	PTR	mail.kinup.ru
80.76.130.65	PTR	65.130.76.80.tetra.samara.ru
80.76.130.74	PTR	mail.osk-re.ru
80.76.130.85	A	entendrekorpar.us
80.76.130.90	PTR	mail.zolotoykod.ru
80.76.130.138	PTR	138.130.76.80.tetra.samara.ru
80.76.130.138	A	mail.kinup.ru
80.76.130.140	PTR	mail.zolotoykod.ru
80.76.130.140	A	botek-fitness.ru
80.76.130.140	A	www.kinup.ru
80.76.130.141	PTR	141.130.76.80.tetra.samara.ru
80.76.130.142	PTR	142.130.76.80.tetra.samara.ru
80.76.130.228	PTR	228.130.76.80.tetra.samara.ru
80.76.130.228	A	cable-lom.com
80.76.130.228	A	kinup.ru
80.76.130.236	A	www.irinatsarevskaya.com