Robtex

Up: 200.76.32.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 200.76.32.0/22
Down right: 200.76.36.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
200.76.32.1	PTR	static-200-76-32-1.alestra.net.mx
200.76.32.11	PTR	static-200-76-32-11.alestra.net.mx
200.76.32.42	PTR	static-200-76-32-42.alestra.net.mx
200.76.32.49	PTR	static-200-76-32-49.alestra.net.mx
200.76.32.50	PTR	static-200-76-32-50.alestra.net.mx
200.76.32.72	PTR	static-200-76-32-72.alestra.net.mx
200.76.32.80	A+PTR	static-200-76-32-80.alestra.net.mx
200.76.32.83	PTR	static-200-76-32-83.alestra.net.mx
200.76.32.96	PTR	static-200-76-32-96.alestra.net.mx
200.76.32.98	PTR	static-200-76-32-98.alestra.net.mx
200.76.32.99	PTR	static-200-76-32-99.alestra.net.mx
200.76.32.113	PTR	static-200-76-32-113.alestra.net.mx
200.76.32.120	PTR	static-200-76-32-120.alestra.net.mx
200.76.32.131	PTR	static-200-76-32-131.alestra.net.mx
200.76.32.136	PTR	static-200-76-32-136.alestra.net.mx
200.76.32.146	PTR	static-200-76-32-146.alestra.net.mx
200.76.32.147	PTR	static-200-76-32-147.alestra.net.mx
200.76.32.170	PTR	static-200-76-32-170.alestra.net.mx
200.76.32.176	PTR	static-200-76-32-176.alestra.net.mx
200.76.32.184	PTR	static-200-76-32-184.alestra.net.mx
200.76.32.185	PTR	static-200-76-32-185.alestra.net.mx
200.76.32.186	PTR	static-200-76-32-186.alestra.net.mx
200.76.32.193	PTR	static-200-76-32-193.alestra.net.mx
200.76.32.210	PTR	static-200-76-32-210.alestra.net.mx
200.76.32.240	PTR	static-200-76-32-240.alestra.net.mx
200.76.32.242	PTR	static-200-76-32-242.alestra.net.mx
200.76.33.25	PTR	static-200-76-33-25.alestra.net.mx
200.76.33.25	A	2a.mipediatra.com
200.76.33.25	A	*.mipediatra.com
200.76.34.10	PTR	slp.podernet.com.mx
200.76.34.66	PTR	static-200-76-34-66.alestra.net.mx
200.76.34.121	PTR	static-200-76-34-121.alestra.net.mx
200.76.34.121	A	grupo-mayan-forums.net
200.76.34.121	A	grupo-mayan-forums.org
200.76.34.198	A	mail.itst.edu.mx
200.76.34.202	PTR	static-200-76-34-202.alestra.net.mx
200.76.34.202	A	virtual.utan.edu.mx
200.76.36.7	A	mail.netvait.com
200.76.36.7	A	netvait.com
200.76.36.7	A	mail.floresgaribay.com.mx
200.76.36.8	PTR	static-200-76-36-8.alestra.net.mx
200.76.36.8	A	interva.mx
200.76.36.12	A	www.fgrevista.com.mx
200.76.36.12	A	mail.fgrevista.com.mx
200.76.36.12	A	fgrevista.com.mx
200.76.36.34	PTR	emyco.com
200.76.36.35	PTR	static.mail.emyco.com
200.76.36.35	A	mail.emyco.com
200.76.36.35	A	mail.zapatilandia.com
200.76.36.51	PTR	mail.emyco.com
200.76.36.67	PTR	ns.bb.com.mx
200.76.36.67	A	dnsmaster.e-bbdivisas.com.mx
200.76.36.67	A	dnsmaster.pymesbajio.com.mx
200.76.36.72	A	comexenlineabanbajio.bb.com.mx
200.76.36.74	PTR	static-200-76-36-74.alestra.net.mx
200.76.36.74	A	www.bajiointernacional.com.mx
200.76.36.85	A	pacbb.bb.com.mx
200.76.36.88	A+PTR	secure7.bb.com.mx
200.76.36.88	PTR	secure26.bb.com.mx
200.76.36.88	PTR	secure31.bb.com.mx
200.76.36.91	PTR	static-200-76-36-91.alestra.net.mx
200.76.36.96	PTR	static-200-76-36-96.alestra.net.mx
200.76.36.96	A	www.e-bbdivisas.com
200.76.36.96	A	www.e-bbdivisas.com.mx
200.76.36.97	PTR	static-200-76-36-97.alestra.net.mx
200.76.36.97	A	cuentapekesychavos.bb.com.mx
200.76.36.98	PTR	static-200-76-36-98.alestra.net.mx
200.76.36.98	A	simulador.bb.com.mx
200.76.36.99	PTR	static-200-76-36-99.alestra.net.mx
200.76.36.109	A	validacioncfdifactor.bb.com.mx
200.76.36.110	A	facturas.bb.com.mx
200.76.36.111	A	movil.bb.com.mx
200.76.36.112	PTR	static-200-76-36-112.alestra.net.mx
200.76.36.112	A	ese.bb.com.mx
200.76.36.114	PTR	static-200-76-36-114.alestra.net.mx
200.76.36.115	PTR	static-200-76-36-115.alestra.net.mx
200.76.36.115	A	secure2.bb.com.mx
200.76.36.115	A	securep.bb.com.mx
200.76.36.117	A	cuentapekesychavos.bb.com.mx
200.76.36.121	PTR	static-200-76-36-121.alestra.net.mx
200.76.36.121	A	ns3.bajiointernacional.com.mx
200.76.36.121	A	ns3.fiduciariobajio.com.mx
200.76.36.130	PTR	static-200-76-36-130.alestra.net.mx
200.76.36.202	PTR	static-200-76-36-202.alestra.net.mx
200.76.37.4	PTR	enlace4.editorialnotmusa.com.mx
200.76.37.4	A	mayamagazines.com
200.76.37.12	A	mail.mayamagazines.com
200.76.37.52	A	internet.masnegocioenmenostiempo.com
200.76.37.52	A	internet.contpaqibancos.com.mx
200.76.37.52	A	internet.adminpaqi.com
200.76.37.56	PTR	gw.compac.com.mx
200.76.37.56	A	gw.contpaqi-puntodeventa.com.mx
200.76.37.56	A	gw.excelparacontadores.com.mx
200.76.37.57	PTR	hercules.compac.com.mx
200.76.37.58	PTR	static-200-76-37-58.alestra.net.mx
200.76.37.65	PTR	static-200-76-37-65.alestra.net.mx
200.76.37.82	PTR	mail.dalton.com.mx
200.76.37.130	PTR	corpomex.com.mx
200.76.39.18	PTR	static-200-76-39-18.alestra.net.mx
200.76.39.19	PTR	static-200-76-39-19.alestra.net.mx
200.76.39.24	PTR	static-200-76-39-24.alestra.net.mx
200.76.39.25	PTR	static-200-76-39-25.alestra.net.mx
200.76.39.43	PTR	static-200-76-39-43.alestra.net.mx
200.76.39.50	PTR	static-200-76-39-50.alestra.net.mx
200.76.39.59	PTR	static-200-76-39-59.alestra.net.mx
200.76.39.72	PTR	static-200-76-39-72.alestra.net.mx
200.76.39.88	PTR	static-200-76-39-88.alestra.net.mx
200.76.39.104	PTR	static-200-76-39-104.alestra.net.mx
200.76.39.107	PTR	static-200-76-39-107.alestra.net.mx
200.76.39.122	PTR	static-200-76-39-122.alestra.net.mx
200.76.39.137	PTR	static-200-76-39-137.alestra.net.mx
200.76.39.144	PTR	static-200-76-39-144.alestra.net.mx
200.76.39.171	PTR	static-200-76-39-171.alestra.net.mx
200.76.39.193	PTR	static-200-76-39-193.alestra.net.mx
200.76.39.195	PTR	static-200-76-39-195.alestra.net.mx
200.76.39.209	PTR	static-200-76-39-209.alestra.net.mx
200.76.39.211	PTR	static-200-76-39-211.alestra.net.mx
200.76.39.224	PTR	static-200-76-39-224.alestra.net.mx
200.76.39.225	PTR	static-200-76-39-225.alestra.net.mx
200.76.39.226	PTR	static-200-76-39-226.alestra.net.mx
200.76.39.235	PTR	static-200-76-39-235.alestra.net.mx
200.76.39.243	PTR	static-200-76-39-243.alestra.net.mx
200.76.39.248	PTR	static-200-76-39-248.alestra.net.mx
200.76.39.249	PTR	static-200-76-39-249.alestra.net.mx