Robtex

Up: 87.120.96.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 87.120.100.0/23
Down right: 87.120.102.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
87.120.100.19	PTR	dhcp-19.net1.bg
87.120.100.21	PTR	dhcp-21.net1.bg
87.120.101.192	PTR	dhcp-192.net1.bg
87.120.101.192	A	mail.silente.info
87.120.101.192	A	nedsteel.bg
87.120.101.233	PTR	dhcp-233.net1.bg
87.120.101.234	PTR	dhcp-234.net1.bg
87.120.102.13	PTR	dhcp-13.net1.bg
87.120.102.14	PTR	dhcp-14.net1.bg
87.120.102.27	PTR	dhcp-27.net1.bg
87.120.102.42	PTR	dhcp-42.net1.bg
87.120.102.58	PTR	dhcp-58.net1.bg
87.120.102.77	PTR	dhcp-77.net1.bg
87.120.102.170	PTR	dhcp-170.net1.bg
87.120.103.5	PTR	dhcp-5.net1.bg
87.120.103.214	PTR	dhcp-214.net1.bg
87.120.103.214	A	afeeno.com