Robtex

Up: 109.87.136.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 109.87.140.0/23
Down right: 109.87.142.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
109.87.140.5	PTR	5.140.87.109.triolan.net
109.87.140.11	A	naumovsasha.com
109.87.140.28	A	unix-admin.in.ua
109.87.140.34	PTR	34.140.87.109.triolan.net
109.87.140.48	PTR	48.140.87.109.triolan.net
109.87.140.48	A	avtokursy.kh.ua
109.87.140.48	A	superportalik.com
109.87.140.80	PTR	80.140.87.109.triolan.net
109.87.140.174	PTR	174.140.87.109.triolan.net
109.87.141.136	PTR	136.141.87.109.triolan.net
109.87.141.255	PTR	255.141.87.109.triolan.net
109.87.142.44	PTR	44.142.87.109.triolan.net
109.87.142.44	A	www.knau.kharkov.ua
109.87.142.44	A	knau.kharkov.ua
109.87.142.117	PTR	117.142.87.109.triolan.net
109.87.142.183	PTR	183.142.87.109.triolan.net
109.87.142.191	PTR	191.142.87.109.triolan.net
109.87.143.21	PTR	21.143.87.109.triolan.net
109.87.143.33	PTR	33.143.87.109.triolan.net
109.87.143.35	PTR	35.143.87.109.triolan.net
109.87.143.35	A	lan.co.ua
109.87.143.35	A	idc.homeip.net
109.87.143.50	A	diggerst.jersicats.com
109.87.143.67	PTR	67.143.87.109.triolan.net
109.87.143.93	PTR	93.143.87.109.triolan.net
109.87.143.120	PTR	120.143.87.109.triolan.net
109.87.143.176	PTR	176.143.87.109.triolan.net