Robtex

Up: 187.39.84.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 187.39.84.0/24
Down right: 187.39.85.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
187.39.84.108	PTR	bb27546c.virtua.com.br
187.39.84.108	A	anexp.org
187.39.84.108	A	anexp.co
187.39.85.92	PTR	bb27555c.virtua.com.br
187.39.85.173	PTR	bb2755ad.virtua.com.br
187.39.85.215	PTR	bb2755d7.virtua.com.br