Robtex

Up: 187.19.48.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 187.19.48.0/22
Down right: 187.19.52.0/22

IP	Type	Hostname
187.19.48.2	PTR	user02.infolic.net.br.48.19.187.in-addr.arpa
187.19.48.12	PTR	gw-02.infolic.net.br.48.19.187.in-addr.arpa
187.19.48.60	PTR	ns1.infolic.net.br.48.19.187.in-addr.arpa
187.19.48.60	A	mail.infolic.com.br
187.19.48.60	A	ns1.infolic.net.br
187.19.48.61	PTR	ns2.infolic.net.br.48.19.187.in-addr.arpa
187.19.48.61	A	ns2.infolic.net.br
187.19.51.128	PTR	187-19-51-128.dynamic.infolic.net.br
187.19.52.213	A	ferdsfaerwdfsa.ooo
187.19.53.56	PTR	187-19-53-56.dynamic.infolic.net.br
187.19.53.243	PTR	187-19-53-243.dynamic.infolic.net.br
187.19.55.53	PTR	187-19-55-53.dynamic.infolic.net.br