Robtex

Up: 89.248.230.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 89.248.231.0/25
Down right: 89.248.231.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
89.248.231.6	PTR	lxxxix.ccxlviii.ccxxxi.vi.quickline.ru
89.248.231.6	A	ns1.1rs.su
89.248.231.6	A	mail.1rs.su
89.248.231.80	A+PTR	mail.cvh.ru
89.248.231.80	A	mail.xn--80aqkf0ag.xn--p1ai
89.248.231.80	A	mail.jlg.su
89.248.231.121	A+PTR	mail.vnukovo-outlet.com
89.248.231.121	A	mail.vnukovosportvillage.ru
89.248.231.121	A	mail.outletvillage.ru
89.248.231.127	PTR	lxxxix.ccxlviii.ccxxxi.cxxvii.quickline.ru
89.248.231.128	PTR	lxxxix.ccxlviii.ccxxxi.cxxviii.quickline.ru