Robtex

Up: 148.246.0.0/15
Can't show all results, try to descend to a more specific CIDR
Down left: 148.247.0.0/17
Down right: 148.247.128.0/17
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
148.247.1.1	A+PTR	mvax1.red.cinvestav.mx
148.247.1.2	A+PTR	soun.red.cinvestav.mx
148.247.1.3	A	sentry.red.cinvestav.mx
148.247.1.3	A	infadm.inf.cinvestav.mx
148.247.14.2	A	math.cinvestav.mx
148.247.14.5	A	math05.math.cinvestav.mx
148.247.14.7	A	lucia.math.cinvestav.mx
148.247.14.7	A	gmoreno.math.cinvestav.mx
148.247.14.13	A	gmoreno.math.cinvestav.mx
148.247.21.3	A+PTR	mail.cts-design.com
148.247.21.3	A	cts-design.com
148.247.21.3	A	gdl.cinvestav.mx
148.247.21.11	PTR	intranet.gdl.cinvestav.mx
148.247.21.12	PTR	video.gdl.cinvestav.mx
148.247.22.8	A+PTR	swnl.saltillo.cinvestav.mx
148.247.22.8	A	snwl.cinvestav.edu.mx
148.247.22.14	PTR	www.saltillo.cinvestav.mx
148.247.22.14	A	cinvestav.edu.mx
148.247.22.14	A	saltillo.cinvestav.mx
148.247.41.197	A+PTR	arcos.qro.cinvestav.mx
148.247.41.197	A	www.qro.cinvestav.mx
148.247.41.197	A	qro.cinvestav.mx
148.247.42.1	A	paseosdelbosque.com
148.247.51.13	A	berlinux.com.mx
148.247.51.13	A	ns1.berlinux.mx
148.247.51.13	A	berlinux.mx
148.247.65.26	A	patricia.sca.cinvestav.mx
148.247.65.28	A	gusano.sca.cinvestav.mx
148.247.65.32	A	ricardo.sca.cinvestav.mx
148.247.65.33	A	pruebas.sca.cinvestav.mx
148.247.65.122	A	berlinux.mx
148.247.66.45	A+PTR	cinvestavca01.exchange.cinvestav.mx
148.247.66.46	A+PTR	cinvestavca02.exchange.cinvestav.mx
148.247.66.46	A	mail.cinvestav.mx
148.247.66.51	A	owa.exchange.cinvestav.mx
148.247.67.1	A	ecorreo.cinvestav.mx
148.247.67.22	A	noticias.cinvestav.mx
148.247.67.22	A	cinvestav.net
148.247.67.22	A	bioelec.cinvestav.mx
148.247.67.24	A	cinvestav.net
148.247.67.24	A	bioelec.cinvestav.mx
148.247.69.3	A	csb3.csb.cinvestav.mx
148.247.69.6	A+PTR	csb.csb.cinvestav.mx
148.247.69.9	A	sb3.csb.cinvestav.mx
148.247.69.13	A	quimera.csb.cinvestav.mx
148.247.70.3	A	workstation3.proyectos.cinvestav.mx
148.247.73.10	A+PTR	admon.dirgral.cinvestav.mx
148.247.73.10	A	infadm.inf.cinvestav.mx
148.247.73.120	A+PTR	exchange.dirgral.cinvestav.mx
148.247.73.120	A	dirgral.cinvestav.mx
148.247.73.227	PTR	azteca.dirgral.cinvestav.mx
148.247.74.1	A+PTR	www.matedu.cinvestav.mx
148.247.96.2	A+PTR	ingenieriaelectrica.ie.cinvestav.mx
148.247.96.2	A	ie.cinvestav.mx
148.247.97.1	A+PTR	servdca.ctrl.cinvestav.mx
148.247.97.1	A	ctrl.cinvestav.mx
148.247.98.1	PTR	server.ie.cinvestav.mx
148.247.99.102	A	solar.cinvestav.mx
148.247.101.1	A	sees.cinvestav.mx
148.247.101.1	A	gap.sees.cinvestav.mx
148.247.101.2	A	quelonio.sees.cinvestav.mx
148.247.102.1	A+PTR	epsilon.cs.cinvestav.mx
148.247.102.2	A+PTR	xenacluster.cs.cinvestav.mx
148.247.102.9	A+PTR	cie.cs.cinvestav.mx
148.247.102.9	PTR	cronos.cs.cinvestav.mx
148.247.102.9	PTR	fidelis.cs.cinvestav.mx
148.247.102.10	A+PTR	computacion.cs.cinvestav.mx
148.247.105.5	A+PTR	mayra.biotech.cinvestav.mx
148.247.105.9	A+PTR	jaime.biotech.cinvestav.mx
148.247.122.59	A+PTR	latina.chem.cinvestav.mx
148.247.122.59	A	latina.relaq.mx
148.247.122.59	A	relaq.mx
148.247.122.63	PTR	diamin.chem.cinvestav.mx
148.247.123.2	A+PTR	dns.nathan.cinvestav.mx
148.247.123.2	A	nathan.cinvestav.mx
148.247.153.1	A+PTR	tlaloc.cell.cinvestav.mx
148.247.153.2	A+PTR	paynal.cell.cinvestav.mx
148.247.156.1	A+PTR	ftp.fisio.cinvestav.mx
148.247.156.1	A+PTR	neuro1.fisio.cinvestav.mx
148.247.156.1	A	156.247.148.in-addr.arpa
148.247.156.3	PTR	www.fanis.fisio.cinvestav.mx
148.247.156.3	A+PTR	www.fisio.cinvestav.mx
148.247.156.3	PTR	fanis.fisio.cinvestav.mx
148.247.156.6	PTR	neurored.fisio.cinvestav.mx
148.247.156.7	PTR	webmail.fisio.cinvestav.mx
148.247.157.50	A+PTR	atp.biochem.cinvestav.mx
148.247.182.2	A	est2.fis.cinvestav.mx
148.247.182.13	A	yura.fis.cinvestav.mx
148.247.182.22	A	video1.fis.cinvestav.mx
148.247.182.33	A	prueba.fis.cinvestav.mx
148.247.183.53	A	est53b.fis.cinvestav.mx
148.247.183.77	A	ns.fis.cinvestav.mx
148.247.183.86	A	vpn.fis.cinvestav.mx
148.247.183.141	A	est141b.fis.cinvestav.mx
148.247.184.3	A+PTR	control.academica.cinvestav.mx
148.247.184.3	A	academica.cinvestav.mx
148.247.185.200	A	bfm.cinvestav.mx
148.247.185.222	A+PTR	atlas.bfm.cinvestav.mx
148.247.185.222	A	atlasdelacienciamexicana.org
148.247.186.2	A+PTR	login.math.cinvestav.mx
148.247.186.3	PTR	login.math.cinvestav.mx
148.247.186.3	A	pine.math.cinvestav.mx
148.247.186.5	A+PTR	dns.math.cinvestav.mx
148.247.186.11	A	aula.math.cinvestav.mx
148.247.193.135	A+PTR	kukulkan.mda.cinvestav.mx
148.247.194.124	A	gallina.mda.cinvestav.mx
148.247.194.137	A	grabadorafa.mda.cinvestav.mx
148.247.195.1	A+PTR	kin.mda.cinvestav.mx
148.247.195.1	A	mda.cinvestav.mx
148.247.195.2	A+PTR	uh.mda.cinvestav.mx
148.247.195.3	A+PTR	ixchel.mda.cinvestav.mx
148.247.197.42	A	d01b.us.to
148.247.201.66	A	cerbero.tamps.cinvestav.mx
148.247.202.2	PTR	helios.tamps.cinvestav.mx
148.247.202.2	A	lti-server.tamps.cinvestav.mx
148.247.202.3	A+PTR	mercurio.tamps.cinvestav.mx
148.247.202.3	A	mail.tamps.cinvestav.mx
148.247.202.32	A+PTR	odiseo.tamps.cinvestav.mx
148.247.219.31	A	atcares.com
148.247.220.8	A	aulavirtual.abiertayadistancia.sep.gob.mx
148.247.220.57	A	encuestas.esad.cinvestav.mx
148.247.220.96	A	registro.prepaenlinea.sep.gob.mx
148.247.225.5	A	ns1.mexicobio.org
148.247.225.5	A	mail.mexicobio.org
148.247.225.5	A	mexicobio.org
148.247.225.7	A+PTR	bioingenios.ira.cinvestav.mx
148.247.225.20	A	bioingenios.ira.cinvestav.mx
148.247.230.1	A+PTR	dns.langebio.cinvestav.mx
148.247.230.1	A	langebio.cinvestav.mx