Robtex

Up: 80.76.234.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 80.76.234.0/25
Down right: 80.76.234.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
80.76.234.54	A+PTR	mail.yantarsnab.ru
80.76.234.54	A	ns1.yantarsnab.ru
80.76.234.54	A	relay.yantarsnab.ru
80.76.234.78	A	xn--h1adx.xn--p1ai
80.76.234.78	A	tki.su
80.76.234.158	PTR	mail.gosdorstroy.ru
80.76.234.158	A	mail.sherlock-house.ru
80.76.234.158	A	mail.gloraxracing.com
80.76.234.205	PTR	mx.cafemon.ru