Robtex

Up: 186.237.138.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 186.237.139.0/25
Down right: 186.237.139.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
186.237.139.134	PTR	186.237.139.134.iftnet.com.br
186.237.139.134	A	addsti.com
186.237.139.134	A	addsolution.com.br
186.237.139.136	PTR	186.237.139.136.iftnet.com.br
186.237.139.136	A	cloud9mon.com
186.237.139.141	PTR	mx01.addsolution.com.br
186.237.139.141	A	ns1.addsolution.com.br
186.237.139.142	A+PTR	mx02.addsolution.com.br
186.237.139.150	PTR	186.237.139.150.iftnet.com.br
186.237.139.150	A	atmhome.com.br
186.237.139.150	A	www.atmhome.com.br
186.237.139.194	A+PTR	ns1.icec.com.br
186.237.139.194	A	izamar.com.br
186.237.139.194	A	mcsconstrucoes.com.br
186.237.139.195	A+PTR	ns2.icec.com.br
186.237.139.195	A	izamar.com.br
186.237.139.195	A	mcsconstrucoes.com.br
186.237.139.196	A+PTR	mx.icec.com.br
186.237.139.196	A	smtp.izamar.com.br
186.237.139.196	A	smtp.locmov.com