Robtex

Up: 200.49.252.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 200.49.254.0/24
Down right: 200.49.255.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
200.49.254.40	A+PTR	ns1.claroeng.net
200.49.254.40	A	claroeng.net
200.49.255.28	A	ns1.telvista.com
200.49.255.39	A	mail.telvista.com
200.49.255.41	A	www.telvista.com
200.49.255.41	A	telmexusa.com
200.49.255.41	A	telvista.com