Robtex

Up: 200.56.12.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 200.56.13.0/25
Down right: 200.56.13.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
200.56.13.14	A+PTR	200-56-13-14.dynamic.axtel.net
200.56.13.246	A	equiposdefuerza.com
200.56.13.246	A	mail.equiposdefuerza.com
200.56.13.246	A	www.metrologiamty.com
200.56.13.247	PTR	200-56-13-247.reservada.static.axtel.net
200.56.13.247	A	mail.filsem.com
200.56.13.247	A	zeit.com.mx
200.56.13.249	PTR	caleb.e-strategia.com