Robtex

Up: 80.249.144.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 80.249.148.0/23
Down right: 80.249.150.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
80.249.148.101	PTR	relay.onl.ru
80.249.148.102	PTR	qml.ru
80.249.148.103	PTR	wml.ru
80.249.148.104	PTR	zml.ru
80.249.148.105	PTR	n4u.ru
80.249.148.105	A	internet4you.ru
80.249.148.105	A	inet4u.ru
80.249.148.106	PTR	macom.ru
80.249.148.107	PTR	master-telecom.ru
80.249.148.108	PTR	mxx.ru
80.249.148.109	PTR	wha.ru
80.249.148.110	PTR	xon.ru
80.249.148.111	PTR	l7.ru
80.249.148.112	PTR	eko-trans.ru
80.249.148.121	PTR	rodkina.ru
80.249.148.122	PTR	serdolic.ru
80.249.148.130	PTR	mail.pbo.ru
80.249.148.134	PTR	fim.ru
80.249.148.137	PTR	dialog-stolitsa.ru
80.249.148.138	PTR	mail.at-t.ru
80.249.149.55	A	cinema5.ru
80.249.149.65	A+PTR	mail.malahits.su
80.249.150.132	A	inspectorgadgets.ru
80.249.151.149	A	etnmi.com