Robtex

Up: 109.87.208.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 109.87.208.0/25
Down right: 109.87.208.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
109.87.208.17	PTR	smarts.zp.ua
109.87.208.17	A	mail.smarts.zp.ua
109.87.208.55	PTR	55.208.87.109.triolan.net
109.87.208.55	A	ns3.x-server.com.ua
109.87.208.55	A	mail.x-server.com.ua
109.87.208.144	PTR	144.208.87.109.triolan.net
109.87.208.163	PTR	163.208.87.109.triolan.net
109.87.208.181	PTR	181.208.87.109.triolan.net
109.87.208.224	PTR	224.208.87.109.triolan.net
109.87.208.224	A	chat.biz.ua