Robtex

Up: 186.236.0.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 186.236.16.0/21
Down right: 186.236.24.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
186.236.16.2	PTR	2.16.236.186.futurasc.net
186.236.16.10	A+PTR	mail.coopera1.com.br
186.236.16.10	A	web.coopera1.com.br
186.236.16.10	A	coopera1.com.br
186.236.16.17	PTR	onlinebr.com.br
186.236.16.17	A	canello.com.br
186.236.16.17	A	hospitalpalmitos.com.br
186.236.16.26	PTR	reverso2.textiloeste.com.br
186.236.16.34	PTR	onlinebr.com.br
186.236.16.34	A	ns2.onlinebr.com.br
186.236.16.125	PTR	125.16.236.186.futurasc.net
186.236.16.167	PTR	167.16.236.186.futurasc.net
186.236.16.189	PTR	189.16.236.186.futurasc.net
186.236.18.28	PTR	28.18.236.186.futurasc.net
186.236.18.49	PTR	49.18.236.186.futurasc.net
186.236.18.103	PTR	103.18.236.186.futurasc.net
186.236.19.29	PTR	29.19.236.186.futurasc.net
186.236.19.44	PTR	44.19.236.186.futurasc.net
186.236.27.110	PTR	110.27.236.186.futurasc.net
186.236.28.39	PTR	39.28.236.186.futurasc.net
186.236.28.202	PTR	202.28.236.186.futurasc.net