Robtex

Up: 191.242.242.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 191.242.242.0/25
Down right: 191.242.242.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
191.242.242.0	A	0.242.242.191.static.horizonstelecom.com.br
191.242.242.3	A+PTR	3.242.242.191.static.horizonstelecom.com.br
191.242.242.3	A	ns2.osasco.sp.gov.br
191.242.242.4	A+PTR	4.242.242.191.static.horizonstelecom.com.br
191.242.242.4	A	ns2.cioeste.sp.gov.br
191.242.242.4	A	pmo.osasco.sp.gov.br