Robtex

Up: 109.87.224.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 109.87.228.0/23
Down right: 109.87.230.0/23

IP	Type	Hostname
109.87.228.0	PTR	0.228.87.109.triolan.net
109.87.228.9	PTR	9.228.87.109.triolan.net
109.87.228.32	PTR	32.228.87.109.triolan.net
109.87.228.49	PTR	49.228.87.109.triolan.net
109.87.228.57	PTR	57.228.87.109.triolan.net
109.87.228.143	PTR	143.228.87.109.triolan.net
109.87.229.255	PTR	255.229.87.109.triolan.net
109.87.230.78	PTR	78.230.87.109.triolan.net
109.87.230.100	PTR	100.230.87.109.triolan.net
109.87.230.100	A	vodokanal.pl.ua
109.87.230.100	A	www.vodokanal.pl.ua
109.87.230.130	PTR	130.230.87.109.triolan.net
109.87.230.139	PTR	139.230.87.109.triolan.net
109.87.231.16	PTR	16.231.87.109.triolan.net
109.87.231.66	PTR	66.231.87.109.triolan.net
109.87.231.180	PTR	180.231.87.109.triolan.net
109.87.231.216	PTR	216.231.87.109.triolan.net