Robtex

Up: 81.30.202.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 81.30.202.0/25
Down right: 81.30.202.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.30.202.0	PTR	81.30.202.0.static.ufanet.ru
81.30.202.46	PTR	mail.snema.ru
81.30.202.78	A+PTR	uwc.ufanet.ru
81.30.202.82	A+PTR	81.30.202.82.static.ufanet.ru
81.30.202.83	A	pcm-ufa.ru
81.30.202.84	A	chirko.ru
81.30.202.85	PTR	81.30.202.85.static.ufanet.ru
81.30.202.85	A	eurocomp.ru
81.30.202.86	A+PTR	mail.nirsa.ru
81.30.202.94	PTR	81.30.202.94.static.ufanet.ru
81.30.202.94	A	mail.frgsrb.ru
81.30.202.141	A+PTR	ptbmailer.do.promtransbank.ru
81.30.202.141	A	do.promtransbank.ru
81.30.202.142	PTR	bashspirt.ru
81.30.202.146	A	mail.tp-at.ru
81.30.202.150	PTR	mir.ufanet.ru
81.30.202.150	A	smbook.ru
81.30.202.150	A	tourmuseum.ru
81.30.202.178	A	vsemkupon.ru
81.30.202.178	A	xn--h1ademcvc.xn--p1ai
81.30.202.206	PTR	mail2.promtransbank.ru
81.30.202.226	PTR	mail.ufarabota.ru