Robtex

Up: 78.153.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 78.153.0.0/20
Down right: 78.153.16.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
78.153.0.2	PTR	e66.ru
78.153.0.2	PTR	eurotel-ekt.ru
78.153.0.2	PTR	www.e66.ru
78.153.0.4	A	lupus.e66.ru
78.153.0.5	A	eur-ektgw.e66.ru
78.153.0.20	A	charon.e66.ru
78.153.0.60	PTR	mail.e66.ru
78.153.0.202	A	forum.e66.ru
78.153.0.232	A+PTR	mailer.e66.ru
78.153.0.251	A+PTR	ns2.e66.ru
78.153.0.251	A	ns2.ural.stream.ru
78.153.0.253	PTR	ns.e66.ru
78.153.0.253	A	ns.ural.stream.ru
78.153.1.25	A	mail.ugmk-clinic.ru
78.153.1.33	PTR	mdf-medel.ru
78.153.1.38	A	mail1.uzga404.ru
78.153.1.248	PTR	monitor.e66.ru
78.153.2.5	PTR	2-5.e66.utk.ru
78.153.3.36	PTR	3-36.e66.utk.ru
78.153.4.15	PTR	4-15.e66.utk.ru
78.153.4.15	A	ns134.helkern.ru
78.153.4.15	A	db.helkern.ru
78.153.4.24	PTR	4-24.e66.utk.ru
78.153.4.34	A	mail.d1b.ru
78.153.4.34	A	d1b.ru
78.153.4.34	A	u-time.ru
78.153.4.77	PTR	4-77.e66.utk.ru
78.153.4.77	A	ramus.tk
78.153.4.88	A	demonx.ru
78.153.4.88	A	mail.demonx.ru
78.153.4.108	PTR	4-108.e66.utk.ru
78.153.4.108	A	www.bignevod.ru
78.153.4.108	A	bignevod.ru
78.153.4.122	PTR	4-122.e66.utk.ru
78.153.4.156	PTR	4-156.e66.utk.ru
78.153.4.156	A	bubenin.com
78.153.4.158	PTR	4-158.e66.utk.ru
78.153.4.177	PTR	4-177.e66.utk.ru
78.153.4.177	A	ekbtravel.com
78.153.4.177	A	www.xn--80ahekb3abahc0am8c.xn--p1ai
78.153.5.31	PTR	5-31.e66.utk.ru
78.153.5.31	A	espr.biz
78.153.5.207	PTR	5-207.e66.utk.ru
78.153.5.207	A	kataevk.ru
78.153.6.4	PTR	6-4.e66.utk.ru
78.153.6.44	PTR	6-44.e66.utk.ru
78.153.6.187	PTR	6-187.e66.utk.ru
78.153.8.25	PTR	8-25.e66.utk.ru
78.153.8.172	PTR	8-172.e66.utk.ru
78.153.9.127	PTR	9-127.e66.utk.ru
78.153.10.45	PTR	10-45.e66.utk.ru
78.153.10.67	PTR	10-67.e66.utk.ru
78.153.10.82	PTR	10-82.e66.utk.ru
78.153.10.120	PTR	10-120.e66.utk.ru
78.153.11.8	PTR	11-8.e66.utk.ru
78.153.11.51	PTR	11-51.e66.utk.ru
78.153.11.118	PTR	11-118.e66.utk.ru
78.153.13.89	PTR	13-89.e66.utk.ru
78.153.13.228	PTR	13-228.e66.utk.ru
78.153.13.228	A	h2.ural.r-style.ru
78.153.15.39	PTR	15-39.e66.utk.ru
78.153.15.55	PTR	15-55.e66.utk.ru
78.153.15.177	PTR	15-177.e66.utk.ru
78.153.15.178	PTR	15-178.e66.utk.ru
78.153.15.255	PTR	15-255.e66.utk.ru
78.153.16.0	PTR	16-0.e66.utk.ru
78.153.17.72	PTR	17-72.e66.utk.ru
78.153.17.77	PTR	17-77.e66.utk.ru
78.153.17.178	PTR	17-178.e66.utk.ru
78.153.18.145	PTR	18-145.e66.utk.ru
78.153.19.0	PTR	19-0.e66.utk.ru
78.153.19.53	PTR	19-53.e66.utk.ru
78.153.19.93	A	xn--l1aqa6b.xn--p1ai
78.153.20.117	PTR	20-117.e66.utk.ru
78.153.20.221	PTR	20-221.e66.utk.ru
78.153.21.49	PTR	21-49.e66.utk.ru
78.153.21.92	PTR	21-92.e66.utk.ru
78.153.21.116	PTR	21-116.e66.utk.ru
78.153.21.173	PTR	21-173.e66.utk.ru
78.153.22.217	PTR	22-217.e66.utk.ru
78.153.22.222	PTR	22-222.e66.utk.ru
78.153.22.226	PTR	22-226.e66.utk.ru
78.153.23.189	PTR	23-189.e66.utk.ru
78.153.23.236	PTR	23-236.e66.utk.ru
78.153.24.64	PTR	24-64.e66.utk.ru
78.153.25.137	PTR	25-137.e66.utk.ru
78.153.25.209	PTR	25-209.e66.utk.ru
78.153.26.29	PTR	26-29.e66.utk.ru
78.153.26.164	PTR	26-164.e66.utk.ru
78.153.26.188	PTR	26-188.e66.utk.ru
78.153.26.222	PTR	26-222.e66.utk.ru
78.153.27.55	PTR	27-55.e66.utk.ru
78.153.27.188	PTR	27-188.e66.utk.ru
78.153.28.87	PTR	28-87.e66.utk.ru
78.153.28.170	A	belkar.wrar.name
78.153.29.1	PTR	29-1.e66.utk.ru
78.153.30.3	PTR	30-3.e66.utk.ru
78.153.31.79	PTR	31-79.e66.utk.ru