Robtex

Up: 200.33.192.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 200.33.192.0/22
Down right: 200.33.196.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
200.33.193.2	A	na-200-33-193-2.static.avantel.net.mx
200.33.193.24	A+PTR	mail.dragon.com.mx
200.33.193.28	A	na-200-33-193-28.static.avantel.net.mx
200.33.193.71	A	mail2.dragon.com.mx
200.33.193.194	PTR	dns1.arsis.com.mx
200.33.193.228	A	na-200-33-193-228.static.avantel.net.mx
200.33.194.120	PTR	abeto.accion.com.mx
200.33.194.152	A+PTR	na-200-33-194-152.static.avantel.net.mx
200.33.194.152	A	fire2.consorcioara.com.mx
200.33.194.152	A	dara2.aracorp.com.mx
200.33.194.153	PTR	fes.ara.com.mx