Robtex

Up: 188.231.176.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 188.231.180.0/23
Down right: 188.231.182.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
188.231.180.43	PTR	188.231.180.43.freenet.com.ua
188.231.180.57	PTR	188.231.180.57.freenet.com.ua
188.231.180.212	PTR	188.231.180.212.freenet.com.ua
188.231.181.36	PTR	188.231.181.36.freenet.com.ua
188.231.181.42	PTR	188.231.181.42.freenet.com.ua
188.231.181.60	PTR	188.231.181.60.freenet.com.ua
188.231.181.61	A+PTR	mail.lissoft.com.ua
188.231.181.61	A	freenet.lissoft.com.ua
188.231.181.175	PTR	188.231.181.175.freenet.com.ua
188.231.181.177	PTR	188.231.181.177.freenet.com.ua
188.231.181.198	PTR	188.231.181.198.freenet.com.ua
188.231.182.36	A+PTR	ns2.uanet.biz
188.231.182.36	A	www.nashdom.us
188.231.182.36	A	mail.uanet.biz
188.231.182.46	A	mezius.com
188.231.182.118	PTR	188.231.182.118.freenet.com.ua
188.231.182.217	PTR	188.231.182.217.freenet.com.ua
188.231.182.237	PTR	188.231.182.237.freenet.com.ua
188.231.182.237	A	sms-stih.com
188.231.182.237	A	cxemok.net
188.231.183.152	PTR	188.231.183.152.freenet.com.ua
188.231.183.178	PTR	188.231.183.178.freenet.com.ua
188.231.183.245	PTR	mail.eastd.com.ua
188.231.183.255	PTR	188.231.183.255.freenet.com.ua