Robtex

Up: 192.100.224.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 192.100.224.0/21
Down right: 192.100.232.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
192.100.224.1	A+PTR	c.mx-ns.mx
192.100.229.2	A	ns1.gigacom.net.br
192.100.229.2	A	gigacom.net.br
192.100.229.3	A	ns2.gigacom.net.br
192.100.229.10	A+PTR	webapp.gigacom.net.br
192.100.230.2	PTR	vweb02up.academic.mixcoac.upmx.mx
192.100.230.2	A	terraza.up.edu.mx
192.100.230.2	A	www.upanamericana.edu.mx
192.100.230.21	A	upboard.up.edu.mx
192.100.230.30	A+PTR	ichat.prepaup.edu.mx
192.100.230.30	A+PTR	macserver.prepaup.edu.mx
192.100.230.30	PTR	natcdc.academic.mixcoac.upmx.mx
192.100.230.31	PTR	biblioesdai.academic.mixcoac.upmx.mx
192.100.230.31	A	glifos.esdai.edu.mx
192.100.230.35	A	operativo.upsite.upmx.mx
192.100.230.57	A	webps.academic.mixcoac.upmx.mx
192.100.230.61	PTR	ras05up.academic.mixcoac.upmx.mx
192.100.230.61	A	vpn.up.edu.mx
192.100.230.68	A	web01-upsite.academic.mixcoac.upmx.mx
192.100.230.75	PTR	dim01up.academic.mixcoac.upmx.mx
192.100.230.75	A	istmo.com.mx
192.100.230.75	A	itsmo.mx
192.100.230.82	A+PTR	www.upsite.upmx.mx
192.100.230.82	A+PTR	protocolo.academic.mixcoac.upmx.mx
192.100.230.137	A	biblio.upmx.mx
192.100.230.148	A	up.edu.mx
192.100.230.148	A	www.upanamericana.mx
192.100.230.148	A	www.up.edu.mx
192.100.230.153	A+PTR	crm02-upsite.academic.mixcoac.upmx.mx
192.100.230.165	A+PTR	campus.upsite.upmx.mx
192.100.230.172	A	claustro.up.edu.mx
192.100.230.172	A	unestudiantecomotu.up.edu.mx
192.100.230.172	A	prepaup.edu.mx
192.100.230.174	PTR	proxyti4.academic.mixcoac.upmx.mx
192.100.230.175	PTR	infohub02-upsite.academic.mixcoac.upmx.mx
192.100.230.183	A	www.up.edu.mx
192.100.230.195	A+PTR	xendesktop.up.edu.mx
192.100.230.211	A+PTR	web06-upsite.academic.mixcoac.upmx.mx
192.100.230.211	A	campus.upsite.upmx.mx
192.100.230.214	PTR	dns02bup.academic.mixcoac.upmx.mx
192.100.230.214	A	dns2.panamericana.mx
192.100.230.214	A	dns2.opusdei.com.mx
192.100.230.224	A	glifos.esdai.edu.mx
192.100.230.234	A	biblio.upmx.mx
192.100.233.7	A	soporte.reduno.com.mx
192.100.233.16	A	ns1.manpower.com.mx
192.100.234.10	A+PTR	dnsnorte.gfnorte.com.mx
192.100.234.10	A	bem.banorte.com
192.100.234.12	PTR	www.redbanorte.com.mx
192.100.234.13	A+PTR	sun.banorte.com
192.100.234.13	A	dns.banorteinmuebles.com
192.100.234.16	PTR	portal.banorte.com
192.100.234.17	PTR	ns.banorte.com
192.100.234.18	A+PTR	dns1.banorte.com
192.100.234.18	A	dns1.gfnorte.com.mx
192.100.234.20	A	ixebanorte.mx
192.100.234.20	A	ixebanorte.com.mx
192.100.234.33	A	gfbdin33.gfnorte.com.mx
192.100.234.34	A+PTR	recuperacion.banorte.com.mx
192.100.234.37	A	gfbdin37.gfnorte.com.mx
192.100.234.38	A	cacib.banorteinmuebles.com
192.100.234.48	A+PTR	gfbdin48.gfnorte.com.mx
192.100.234.50	A+PTR	vipnbem.banorte.com
192.100.234.50	A	gwdmz.gfnorte.com.mx
192.100.234.51	A+PTR	ns6.ixe.com.mx
192.100.234.64	A	gfbdin64.gfnorte.com.mx
192.100.234.69	A	cc.banorte.com
192.100.234.73	A	correo.banorte.com
192.100.234.74	A	gfbdin74.gfnorte.com.mx
192.100.234.80	A	gfbdin80.gfnorte.com.mx
192.100.234.82	A+PTR	gfbdin82.gfnorte.com.mx
192.100.234.85	A	gfbdin85.gfnorte.com.mx
192.100.234.88	A	gfbdin88.gfnorte.com.mx
192.100.234.97	PTR	vipbem.gfnorte.com.mx
192.100.234.100	A	cs.gfnorte.com.mx
192.100.234.101	A	gfbdin101.gfnorte.com.mx
192.100.234.102	A	gfbdin102.gfnorte.com.mx
192.100.234.103	A	gfbdin103.gfnorte.com.mx
192.100.234.112	A	gfbdin112.gfnorte.com.mx
192.100.234.113	A	gfbdin113.gfnorte.com.mx
192.100.234.114	A+PTR	gfbdin114.gfnorte.com.mx
192.100.234.114	A	nbem.banorte.com
192.100.234.128	A+PTR	gfbdin128.gfnorte.com.mx
192.100.234.129	A	gfbdin129.gfnorte.com.mx
192.100.234.130	A+PTR	gfbdin130.gfnorte.com.mx
192.100.234.131	A	gfbdin131.gfnorte.com.mx
192.100.234.144	A+PTR	cdf29.gfnorte.com.mx
192.100.234.144	A	mail3.ixe.com.mx
192.100.234.144	A	gfbdin144.gfnorte.com.mx
192.100.234.145	A+PTR	cdf30.gfnorte.com.mx
192.100.234.160	A+PTR	gfbdin160.gfnorte.com.mx
192.100.234.161	A+PTR	gfbdin161.gfnorte.com.mx
192.100.234.162	A+PTR	gfbdin162.gfnorte.com.mx
192.100.234.163	A+PTR	gfbdin163.gfnorte.com.mx
192.100.234.176	A	gfbdin176.gfnorte.com.mx
192.100.234.177	A+PTR	gfbdin177.gfnorte.com.mx
192.100.234.178	A	gfbdin178.gfnorte.com.mx
192.100.234.179	A	gfbdin179.gfnorte.com.mx
192.100.234.192	A+PTR	gfbdin192.gfnorte.com.mx
192.100.234.194	PTR	gfbdin194.gfnorte.com.mx
192.100.234.195	A+PTR	xserv.banorte.com
192.100.234.195	A	gfbdin195.gfnorte.com.mx
192.100.234.199	A	notificaciones.ixe.com.mx
192.100.234.208	A	gfbdin208.gfnorte.com.mx
192.100.234.210	A	gfbdin210.gfnorte.com.mx
192.100.234.211	A	gfbdin211.gfnorte.com.mx
192.100.234.212	A	gfbdin212.gfnorte.com.mx
192.100.234.225	A+PTR	gfbdin225.gfnorte.com.mx
192.100.234.225	A	banorte.net
192.100.234.225	A	net.banorte.com
192.100.234.226	PTR	gfbdin226.gfnorte.com.mx
192.100.234.227	PTR	gfbdin227.gfnorte.com.mx
192.100.234.243	A	gfbdin243.gfnorte.com.mx
192.100.234.247	A	interactivo.banorte.com
192.100.234.248	A	gfbdin248.gfnorte.com.mx
192.100.234.253	A	gfbdin253.gfnorte.com.mx