Robtex

Up: 191.242.240.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 191.242.248.0/22
Down right: 191.242.252.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
191.242.248.20	PTR	ns1.conectabrasil.net
191.242.248.20	A	ns1.conectainter.net.br
191.242.248.21	A+PTR	ns2.conectainter.net.br
191.242.248.35	A+PTR	ns.tudoehfesta.com
191.242.248.35	A	evertom.com.br
191.242.248.35	A	casesecapas.com
191.242.248.36	PTR	191-242-248-36.conectainter.net.br
191.242.248.36	A	ns2.tudoehfesta.com
191.242.248.71	A+PTR	speedtest.conectainter.net.br
191.242.248.71	PTR	191-242-248-71.conectainter.net.br
191.242.248.71	A	conectainter.net.br
191.242.249.250	A	cambarasa.com.br
191.242.253.122	A	cambarasa.com.br
191.242.253.122	A	campaper.com.br
191.242.253.122	A	engesoft.cambarasa.com.br
191.242.255.253	A+PTR	mail.florestalsa.com.br
191.242.255.253	A	turfafertil.com.br
191.242.255.253	A	florestalsa.com.br