Robtex

Up: 81.30.182.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 81.30.182.0/25
Down right: 81.30.182.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.30.182.3	PTR	81.30.182.3.static.ufanet.ru
81.30.182.4	PTR	81.30.182.4.static.ufanet.ru
81.30.182.4	A	alfa-ritm.ru
81.30.182.4	A	www.bibliografu.ru
81.30.182.39	PTR	81.30.182.39.static.ufanet.ru
81.30.182.49	PTR	81.30.182.49.static.ufanet.ru
81.30.182.50	PTR	81.30.182.50.static.ufanet.ru
81.30.182.50	A	platimo.ru
81.30.182.67	PTR	81.30.182.67.static.ufanet.ru
81.30.182.69	A	81.30.182.69.static.ufanet.ru
81.30.182.104	A	81.30.182.104.static.ufanet.ru
81.30.182.105	A	81.30.182.105.static.ufanet.ru
81.30.182.113	PTR	mail.ufa.arbitr.ru
81.30.182.125	A	81.30.182.125.static.ufanet.ru
81.30.182.149	A	81.30.182.149.static.ufanet.ru
81.30.182.185	PTR	mail.vnps.ru
81.30.182.190	A	81.30.182.190.static.ufanet.ru
81.30.182.195	PTR	mail.medupk.ru
81.30.182.207	A	www.uralcapital.ru
81.30.182.207	A	uralcapital.ru
81.30.182.215	A+PTR	81.30.182.215.static.ufanet.ru
81.30.182.219	PTR	81.30.182.219.static.ufanet.ru
81.30.182.219	A	tncrb.ru
81.30.182.220	PTR	81.30.182.220.static.ufanet.ru
81.30.182.228	A	81.30.182.228.static.ufanet.ru
81.30.182.242	A	81.30.182.242.static.ufanet.ru
81.30.182.244	PTR	81.30.182.244.static.ufanet.ru
81.30.182.247	A	mail.bitum-oil.ru
81.30.182.247	A	mail.act-bitum.ru
81.30.182.250	PTR	81.30.182.250.static.ufanet.ru