Robtex

Up: 201.151.128.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 201.151.136.0/22
Down right: 201.151.140.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
201.151.136.12	A	intra-recursoshumanos.net
201.151.136.13	PTR	static-201-151-136-13.alestra.net.mx
201.151.136.13	A	www.dtcpvc.com
201.151.136.97	PTR	static-201-151-136-97.alestra.net.mx
201.151.136.99	A+PTR	mail.vcst.com.mx
201.151.136.99	A	frida.vcst.com.mx
201.151.136.100	PTR	static-201-151-136-100.alestra.net.mx
201.151.136.100	A	dns.vcst.com.mx
201.151.136.100	A	david.vcst.com.mx
201.151.136.114	PTR	static-201-151-136-114.alestra.net.mx
201.151.136.250	PTR	static-201-151-136-250.alestra.net.mx
201.151.136.250	A	facturacionrestauranteelbajio.com.mx
201.151.138.33	PTR	static-201-151-138-33.alestra.net.mx
201.151.138.33	A	ftp.motidigital.com
201.151.138.34	A	moti.asic-linux.com.mx
201.151.138.51	A	mta.andrebadi.com.mx
201.151.138.92	PTR	static-201-151-138-92.alestra.net.mx
201.151.138.92	A	grand-luxxe-online.com
201.151.138.92	A	the-grand-luxxe.net
201.151.138.131	PTR	static-201-151-138-131.alestra.net.mx
201.151.138.131	A	mueblesplacencia.com.mx
201.151.138.131	A	mail.mueblesplacencia.com
201.151.138.144	PTR	mail.obsmex.com.mx
201.151.138.182	A	www.vazquez.com.mx
201.151.138.182	A	vazquez.com.mx
201.151.138.182	A	correo.vazquez.com.mx
201.151.138.191	A	mail.lovending.com
201.151.138.193	A	mail.marstom.com
201.151.138.200	PTR	static-201-151-138-200.alestra.net.mx
201.151.138.200	A	mail.sabmexico.com
201.151.138.201	PTR	static-201-151-138-201.alestra.net.mx
201.151.138.238	A	sanangel.org
201.151.138.250	PTR	mail.conver.com.mx
201.151.138.250	A	conver.com.mx
201.151.138.254	A	holavc.com
201.151.138.254	A	higuadalajaraexpo.com
201.151.138.254	A	hoteleshola.com
201.151.139.18	PTR	static-201-151-139-18.alestra.net.mx
201.151.139.18	A	mail.prelosa.com
201.151.139.28	PTR	static-201-151-139-28.alestra.net.mx
201.151.139.28	A	nkontacto.com
201.151.139.38	A	dc.rh-shipping.com
201.151.139.38	A	importardesde.com
201.151.139.38	A	dcsecond.rh-shipping.com
201.151.139.55	PTR	static-201-151-139-55.alestra.net.mx
201.151.139.55	A	bonpane.mx
201.151.139.150	PTR	static-201-151-139-150.alestra.net.mx
201.151.139.172	PTR	static-201-151-139-172.alestra.net.mx
201.151.139.210	PTR	static-201-151-139-210.alestra.net.mx
201.151.140.67	A+PTR	mail.elpotosi.com.mx
201.151.140.126	A	mail.grupomerco.mx
201.151.140.126	A	smtp.grupomerco.mx
201.151.140.135	A	softevangelist.com
201.151.140.135	A	*.softevangelist.com
201.151.140.140	PTR	static-201-151-140-140.alestra.net.mx
201.151.140.140	A	www.estadodecuentacooperativapemex.com.mx
201.151.140.146	PTR	correo.hospitalsanjavier.com
201.151.140.148	A+PTR	correo.hospitalsanjavier.com
201.151.140.148	A	correo.sanjavier.com.mx
201.151.140.148	A	correo.obesidad-sanjavier.com
201.151.140.234	PTR	smtp.hotelesgdlplaza.com.mx
201.151.140.235	PTR	smtp.hotelesgdlplaza.com.mx
201.151.140.235	A	mail.sunsetplaza.mx
201.151.140.235	A	smtp.hotelesgdlplaza.mx
201.151.140.250	PTR	static-201-151-140-250.alestra.net.mx
201.151.141.67	PTR	static-201-151-141-67.alestra.net.mx
201.151.141.73	PTR	static-201-151-141-73.alestra.net.mx
201.151.141.74	PTR	static-201-151-141-74.alestra.net.mx
201.151.141.96	PTR	static-201-151-141-96.alestra.net.mx
201.151.141.178	PTR	static-201-151-141-178.alestra.net.mx
201.151.141.194	PTR	static-201-151-141-194.alestra.net.mx
201.151.141.203	PTR	static-201-151-141-203.alestra.net.mx
201.151.141.226	PTR	static-201-151-141-226.alestra.net.mx
201.151.141.227	PTR	static-201-151-141-227.alestra.net.mx
201.151.142.10	PTR	static-201-151-142-10.alestra.net.mx
201.151.142.10	A	mail.camaradecomerciogdl.mx
201.151.142.23	A	globinter.com.mx
201.151.142.23	A	mail.conver.com.mx
201.151.142.23	A	mail.k-gifts.net
201.151.142.55	A	www.aaz.com.mx
201.151.142.55	A	mail.pcz.com.mx
201.151.142.55	A	aaz.com.mx
201.151.142.56	PTR	static-201-151-142-56.alestra.net.mx
201.151.142.56	A	netdelabs.com
201.151.142.57	A+PTR	waz.netdelabs.com
201.151.142.57	A	www.geepok.com
201.151.142.57	A	geepok.com
201.151.142.58	PTR	fun.netdelabs.com
201.151.142.59	PTR	sul.netdelabs.com
201.151.142.67	A	www.motormexa.mx
201.151.142.70	A	ns3.tequila.org.mx
201.151.142.71	A	crt.org.mx
201.151.142.71	A	crtentv.com
201.151.142.72	PTR	static-201-151-142-72.alestra.net.mx
201.151.142.72	A	correo.inglesideal.mx
201.151.142.72	A	correo.amezdy.com
201.151.142.73	PTR	static-201-151-142-73.alestra.net.mx
201.151.142.75	PTR	crt03.crt.org.mx
201.151.142.98	A	masfacil.com.mx
201.151.142.186	PTR	static-201-151-142-186.alestra.net.mx
201.151.142.186	A	btdinc.com.mx
201.151.142.186	A	mail.btdinc.com.mx
201.151.142.235	PTR	static-201-151-142-235.alestra.net.mx
201.151.142.235	A	mail.phi-automation.com
201.151.142.235	A	ns1.umveltkorr.info
201.151.143.162	PTR	static-201-151-143-162.alestra.net.mx
201.151.143.183	A	marelliedi.com
201.151.143.184	A	calsonickanseina.com
201.151.143.186	PTR	static-201-151-143-186.alestra.net.mx