Robtex

Up: 80.76.96.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 80.76.96.0/25
Down right: 80.76.96.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
80.76.96.1	PTR	gw.sortos.ru
80.76.96.1	A	hero.modenaonline.com
80.76.96.3	A+PTR	ns2.tdsplus.ru
80.76.96.3	A	ns2.xn--d1aolhcb2g.xn--p1ai
80.76.96.3	A	ns.sortos.ru
80.76.96.4	PTR	www.sortos.ru
80.76.96.4	A	avael.info
80.76.96.4	A	relay2.garastel.ru
80.76.96.5	PTR	mail.sortos.ru
80.76.96.5	A	relay1.mailgrad.ru
80.76.96.5	A	relay1.techspectr.ru
80.76.96.7	A	tango.sortos.ru
80.76.96.8	PTR	public.sortos.ru
80.76.96.8	A	etra-plus.ru
80.76.96.8	A	dkkonversiya.ru
80.76.96.10	PTR	sip.sortos.ru
80.76.96.15	PTR	ling.sortos.ru
80.76.96.16	A+PTR	cis.garastel.ru
80.76.96.17	PTR	clust2.vlk.sortos.ru
80.76.96.18	A+PTR	tester.sortos.ru
80.76.96.21	A+PTR	odin.sortos.ru
80.76.96.23	A+PTR	clust1.sortos.ru
80.76.96.32	PTR	pml.ru
80.76.96.32	A	*.pml.ru
80.76.96.32	A	relay1.pml.ru
80.76.96.33	A+PTR	mvm-art.ru
80.76.96.35	PTR	dkkonversiya.ru
80.76.96.37	PTR	etra-plus.ru
80.76.96.106	A	mail.sro-russtroy.ru
80.76.96.123	PTR	mail.hitsec.ru
80.76.96.123	A	mail.ht-integration.ru
80.76.96.123	A	mail.hitsek.ru
80.76.96.141	A+PTR	mail.safzem.ru
80.76.96.142	A+PTR	mail.ncontract.ru
80.76.96.149	A+PTR	mail.ruselprom.ru
80.76.96.149	A	mail2.ruselprom.ru
80.76.96.151	A+PTR	mail.roel.ru
80.76.96.166	A	ventu.info
80.76.96.187	PTR	mail.ecw.com.ru
80.76.96.242	A+PTR	mail.prom-te.ru