Robtex

Up: 200.56.224.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 200.56.240.0/21
Down right: 200.56.248.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
200.56.240.32	PTR	host112032.metrored.net.mx
200.56.240.40	A	mail.murillofamily.net
200.56.240.50	PTR	host112050.metrored.net.mx
200.56.240.50	A	netropology.com
200.56.240.51	PTR	host112051.metrored.net.mx
200.56.240.51	A	timetracker.com.mx
200.56.240.61	A	dns1.netropology.com
200.56.240.62	A	dns2.netropology.com
200.56.240.66	PTR	host112066.metrored.net.mx
200.56.240.85	A	mail.rednetworks.org
200.56.240.96	PTR	host112096.metrored.net.mx
200.56.240.105	A	dankelmedical.com
200.56.240.105	A	hgenterprises.com.mx
200.56.240.112	PTR	host112112.metrored.net.mx
200.56.240.128	PTR	host112128.metrored.net.mx
200.56.240.163	PTR	host112163.metrored.net.mx
200.56.241.156	A	gbminstitucional.com.mx
200.56.241.156	A	www.gbminstitucional.com.mx
200.56.241.160	PTR	host112160.metrored.net.mx
200.56.241.160	A	www.gbmhomebroker.com
200.56.241.160	A	homebroker.mx
200.56.241.198	PTR	host112198.metrored.net.mx
200.56.241.201	PTR	host112201.metrored.net.mx
200.56.241.201	A	piggo.mx
200.56.241.201	A	piggo.com.mx
200.56.241.211	PTR	host112211.metrored.net.mx
200.56.241.211	A	gbmfondos.com.mx
200.56.241.255	PTR	host112255.metrored.net.mx
200.56.242.14	A	s5.convertex.com
200.56.242.32	PTR	host112032.metrored.net.mx
200.56.242.34	PTR	www.femexfut.org.mx
200.56.242.66	PTR	host112066.metrored.net.mx
200.56.242.67	PTR	host112067.metrored.net.mx
200.56.242.67	A	servicio.herdez.com
200.56.242.96	PTR	host112096.metrored.net.mx
200.56.243.0	PTR	host112000.metronet.net.mx
200.56.243.32	PTR	host112032.metrored.net.mx
200.56.243.50	A+PTR	mail1.asecam.com.mx
200.56.243.52	A	credicam.com.mx
200.56.243.66	PTR	host112066.metrored.net.mx
200.56.243.81	PTR	host112081.metrored.net.mx
200.56.243.96	PTR	host112096.metrored.net.mx
200.56.243.98	PTR	host112098.metrored.net.mx
200.56.243.113	PTR	host112113.metrored.net.mx
200.56.243.144	PTR	host112144.metrored.net.mx
200.56.243.149	A	corporativomac.com.mx
200.56.243.152	A	editorialmac.mx
200.56.243.152	A	www.editorialmac.mx
200.56.243.156	A	greentv.com.mx
200.56.243.161	PTR	host112161.metrored.net.mx
200.56.243.173	PTR	gw.asobens.com.mx
200.56.243.177	PTR	host112177.metrored.net.mx
200.56.243.210	PTR	host112210.metrored.net.mx
200.56.243.226	PTR	host112226.metrored.net.mx
200.56.243.240	PTR	host112240.metrored.net.mx
200.56.244.32	PTR	host112032.metrored.net.mx
200.56.244.40	A	ns.gbsdata.com.mx
200.56.244.40	A	ns.gaf.com.mx
200.56.244.40	A	gaffondos.com
200.56.244.66	PTR	host112066.metrored.net.mx
200.56.244.96	PTR	host112096.metrored.net.mx
200.56.244.173	A	sacli.com
200.56.245.183	PTR	host112183.metrored.net.mx
200.56.247.24	A	opentec.com.mx
200.56.247.24	A	www1.soft-engineop.rr.nu
200.56.247.24	A	uvc.educate-global.com
200.56.247.32	PTR	host112032.metrored.net.mx
200.56.247.54	A	tabcin.com
200.56.247.54	A	www.tabcin.com
200.56.247.66	PTR	host112066.metrored.net.mx
200.56.248.3	PTR	correo.uacm.edu.mx
200.56.248.32	PTR	host112032.metrored.net.mx
200.56.248.66	PTR	host112066.metrored.net.mx
200.56.249.0	PTR	host112000.metronet.net.mx
200.56.249.1	PTR	host112001.metrored.net.mx
200.56.249.2	PTR	host112002.metrored.net.mx
200.56.249.3	PTR	host112003.metrored.net.mx
200.56.249.3	A	mail.papsa.net
200.56.249.16	PTR	host112016.metrored.net.mx
200.56.249.17	PTR	host112017.metrored.net.mx
200.56.249.18	PTR	host112018.metrored.net.mx
200.56.249.19	PTR	host112019.metrored.net.mx
200.56.249.32	PTR	host112032.metrored.net.mx
200.56.249.66	PTR	host112066.metrored.net.mx
200.56.249.90	A	host112090.metrored.net.mx
200.56.249.93	A	businessonline.kpmg.com.mx
200.56.249.113	PTR	host112113.metrored.net.mx
200.56.249.128	PTR	host112128.metrored.net.mx
200.56.249.146	PTR	host112146.metrored.net.mx
200.56.249.147	PTR	host112147.metrored.net.mx
200.56.249.152	A	www.metrored.mx
200.56.249.152	A	www.metrored.com
200.56.249.152	A	metrored.com
200.56.249.160	PTR	host112160.metrored.net.mx
200.56.249.162	PTR	host112162.metrored.net.mx
200.56.249.195	PTR	host112195.metrored.net.mx
200.56.249.242	PTR	host112242.metrored.net.mx
200.56.250.34	PTR	dns.quimica-apollo.com.mx
200.56.250.39	PTR	host112039.metrored.net.mx
200.56.250.96	PTR	host112096.metrored.net.mx
200.56.250.111	PTR	host112111.metrored.net.mx
200.56.250.113	PTR	mail.mundicarga.com.mx
200.56.250.166	PTR	host112166.metrored.net.mx
200.56.250.182	PTR	host112182.metrored.net.mx
200.56.250.229	PTR	mail.ctcmx.com
200.56.250.235	PTR	host112235.metrored.net.mx
200.56.251.32	PTR	host112032.metrored.net.mx
200.56.251.66	PTR	host112066.metrored.net.mx
200.56.251.147	A	mail.mqm.mx
200.56.251.195	PTR	mail.gmx.com.mx
200.56.251.209	A	lancaster.mx
200.56.251.226	PTR	host112226.metrored.net.mx
200.56.252.9	A	mail.colegiociudaddemexico.edu.mx
200.56.252.9	A	mail.espcm.edu.mx
200.56.252.9	A	colegiociudaddemexico.edu.mx
200.56.252.32	PTR	host112032.metrored.net.mx
200.56.252.66	PTR	host112066.metrored.net.mx
200.56.252.74	A	www.lfm.edu.mx
200.56.252.75	A	mail.lfm.edu.mx
200.56.252.76	A	dns1.lfm.edu.mx
200.56.252.113	PTR	host112113.metrored.net.mx
200.56.252.129	PTR	host112129.metrored.net.mx
200.56.252.131	PTR	host112131.metrored.net.mx
200.56.252.155	A	ticsaspel.ticsa.com.mx
200.56.252.156	A	ticsa.com.mx
200.56.252.163	PTR	server-elsa.elsa.com.mx
200.56.252.163	A	elsa.com.mx
200.56.252.196	PTR	host112196.metrored.net.mx
200.56.252.210	PTR	host112210.metrored.net.mx
200.56.252.211	PTR	host112211.metrored.net.mx
200.56.252.240	PTR	host112240.metrored.net.mx
200.56.252.243	PTR	host112243.metrored.net.mx
200.56.253.0	PTR	host112000.metronet.net.mx
200.56.253.26	A	mail.citypremios.com.mx
200.56.254.32	PTR	host112032.metrored.net.mx
200.56.254.60	A	www.etclatam.com
200.56.254.60	A	etciberica.com
200.56.254.60	A	www.etciberica.com
200.56.254.66	PTR	host112066.metrored.net.mx
200.56.254.76	A	multisq.com
200.56.254.76	A	mail.multisq.com
200.56.254.76	A	*.multisq.com
200.56.254.131	PTR	host112131.metrored.net.mx
200.56.254.131	A	mail.data4.efinf.com
200.56.254.131	A	mail.data2.efinf.com
200.56.255.0	PTR	host112000.metronet.net.mx
200.56.255.18	PTR	host112018.metrored.net.mx
200.56.255.32	PTR	host112032.metrored.net.mx
200.56.255.66	PTR	host112066.metrored.net.mx
200.56.255.67	PTR	host112067.metrored.net.mx
200.56.255.82	PTR	host112082.metrored.net.mx
200.56.255.112	PTR	host112112.metrored.net.mx
200.56.255.129	PTR	host112129.metrored.net.mx
200.56.255.146	PTR	mail.facileasing.com.mx
200.56.255.146	A	facileasing.com
200.56.255.146	A	mx1.facileasing.com.mx
200.56.255.161	PTR	host112161.metrored.net.mx
200.56.255.177	PTR	host112177.metrored.net.mx
200.56.255.179	PTR	host112179.metrored.net.mx
200.56.255.195	PTR	host112195.metrored.net.mx
200.56.255.196	PTR	host112196.metrored.net.mx