Robtex

Up: 138.122.16.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 138.122.16.0/23
Down right: 138.122.18.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
138.122.16.2	A	livre2.connectjipa.com.br
138.122.16.2	A	core.connectjipa.com.br
138.122.16.2	A	dns1.connectjipa.com.br
138.122.16.6	A	connect7.com.br
138.122.16.7	A+PTR	ixc.connectjipa.com.br
138.122.16.7	A+PTR	connectjipa.com.br
138.122.16.7	PTR	www.connectjipa.com.br
138.122.16.13	A+PTR	dns2.connectjipa.com.br
138.122.18.2	PTR	adsl.2.connect7.com.br