Robtex

Up: 187.120.240.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 187.120.240.0/23
Down right: 187.120.242.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
187.120.240.6	PTR	6.240.120.187.static.milbr.net
187.120.240.6	A	samanta.milbr.net
187.120.240.10	A	proxy.milbr.net
187.120.240.14	PTR	webserver.milbr.net
187.120.240.14	A	uni10sup.com.br
187.120.240.14	A	milbr.net
187.120.240.16	PTR	mailserver.milbr.net
187.120.240.16	A	mailserver.artefatoseconstrucoes.com.br
187.120.240.16	A	mailserver.mzbhd.com.br
187.120.240.18	PTR	ns01.milbr.net
187.120.240.18	A	milbr.net
187.120.240.19	PTR	mailserver.milbr.net
187.120.240.30	PTR	30.240.120.187.static.milbr.net
187.120.240.30	A	mailserver3.milbr.net
187.120.240.238	PTR	238.240.120.187.static.milbr.net
187.120.241.44	PTR	44.241.120.187.dynamic.milbr.net
187.120.242.8	PTR	8.242.120.187.dynamic.milbr.net