Robtex

Up: 177.185.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 177.185.48.0/23
Down right: 177.185.50.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
177.185.48.6	PTR	serv1.turbosp.com.br
177.185.48.6	A	osmil.com.br
177.185.48.6	A	kafes.com.br
177.185.48.7	PTR	serv2.turbosp.com.br
177.185.48.10	PTR	speedstz.turbosp.com.br
177.185.49.191	PTR	177-185-049-191.turbosp.com.br