Robtex

Up: 200.33.98.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 200.33.99.0/25
Down right: 200.33.99.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
200.33.99.1	PTR	dns.ulsac.edu.mx
200.33.99.1	A	dns.cvca.ulsa.mx
200.33.99.1	A	dns1.ulsac.edu.mx
200.33.99.36	A	pc36.ulsac.edu.mx
200.33.99.93	A	nyel.ulsac.edu.mx
200.33.99.152	A	aplicaciones.ulsac.edu.mx
200.33.99.228	PTR	lyonet.ulsac.edu.mx
200.33.99.241	PTR	pc241.ulsac.edu.mx
200.33.99.248	A	gibert.ulsac.edu.mx