Robtex

Up: 191.0.64.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 191.0.64.0/20
Down right: 191.0.80.0/20

IP	Type	Hostname
191.0.64.84	A+PTR	191-0-64-84.host.telemar.net.br
191.0.64.94	A+PTR	191-0-64-94.host.telemar.net.br
191.0.66.69	A+PTR	191-0-66-69.host.telemar.net.br
191.0.68.86	A+PTR	191-0-68-86.host.telemar.net.br
191.0.72.0	A	hemorio.rj.gov.br
191.0.72.162	A+PTR	ns.hemorio.rj.gov.br
191.0.72.162	A	hemorio.rj.gov.br
191.0.72.162	A	www.hemorio.rj.gov.br
191.0.72.163	A+PTR	smtp.hemorio.rj.gov.br
191.0.74.198	A+PTR	191-0-74-198.host.telemar.net.br
191.0.76.234	A	unicafacil.hopto.org
191.0.78.40	A	prmail.2cta.eb.mil.br
191.0.78.97	A	www.5dl.eb.mil.br
191.0.78.97	A	internet.hce.eb.mil.br
191.0.78.97	A	www.hce.eb.mil.br
191.0.78.98	A	pri2.2cta.eb.mil.br
191.0.78.129	A	linhadireta.1rm.eb.mil.br
191.0.78.241	A	www.2cta.eb.mil.br
191.0.78.250	A	sv310-33.1rm.eb.mil.br
191.0.78.250	A	sv310-33.ad1de.eb.mil.br
191.0.78.250	A	sv310-33.2cta.eb.mil.br
191.0.79.63	A	nobelio.eletronuclear.gov.br
191.0.79.63	A	191-0-79-63.host.telemar.net.br
191.0.79.65	A	paladio.eletronuclear.gov.br
191.0.79.65	A	191-0-79-65.host.telemar.net.br
191.0.83.59	A+PTR	191-0-83-59.user.veloxzone.com.br
191.0.83.59	A	xexize.com
191.0.84.170	PTR	191-0-84-170.user.veloxzone.com.br
191.0.86.136	PTR	191-0-86-136.user.veloxzone.com.br
191.0.86.136	A	phase.zapto.org
191.0.88.9	PTR	191-0-88-9.user3p.veloxzone.com.br
191.0.88.9	A	191-0-88-9.host.telemar.net.br
191.0.88.37	A+PTR	191-0-88-37.user3p.veloxzone.com.br
191.0.88.37	A	191-0-88-37.host.telemar.net.br
191.0.89.140	A+PTR	191-0-89-140.user3p.veloxzone.com.br
191.0.89.140	A	191-0-89-140.host.telemar.net.br
191.0.95.86	PTR	191-0-95-86.user3p.veloxzone.com.br
191.0.95.86	A	191-0-95-86.host.telemar.net.br