Robtex

Up: 88.151.16.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 88.151.18.0/24
Down right: 88.151.19.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
88.151.18.0	A+PTR	princast.es
88.151.18.0	PTR	selladot.princast.es
88.151.18.1	A+PTR	blaxxun.asturias.es
88.151.18.18	PTR	www.educastur.princast.es
88.151.18.19	A	webmail.asturias.org
88.151.18.20	A+PTR	pop3.educastur.princast.es
88.151.18.28	PTR	prueba-sac.princast.es
88.151.18.29	PTR	blog.educastur.es
88.151.18.29	A+PTR	clase.educastur.es
88.151.18.29	A+PTR	filtroweb.educastur.es
88.151.18.30	A+PTR	correo.educastur.princast.es
88.151.18.30	A+PTR	mail.educastur.princast.es
88.151.18.35	PTR	ichain1.educastur.princast.es
88.151.18.35	PTR	nea.educastur.princast.es
88.151.18.36	PTR	ichain2.educastur.princast.es
88.151.18.36	A	dns.educastur.princast.es
88.151.18.40	PTR	nps.educastur.princast.es
88.151.18.43	PTR	posac.princast.es
88.151.18.53	PTR	hcdsnspro.sespa.princast.es
88.151.18.62	A+PTR	webmail.sespa.princast.es
88.151.18.68	A	web.educastur.princast.es
88.151.18.69	A	alojaweb.educastur.es
88.151.18.75	A+PTR	www.cesalgi.org
88.151.18.76	PTR	langreo.cesalgi.org
88.151.18.77	A+PTR	smra.cesalgi.org
88.151.18.78	PTR	laviana.cesalgi.org
88.151.18.79	PTR	caso.cesalgi.org
88.151.18.80	PTR	sobrescobio.cesalgi.org
88.151.18.80	A	portal.educastur.es
88.151.18.81	PTR	www.smra.org
88.151.18.81	A	paginasblancas.educastur.es
88.151.18.83	A	www.educastur.princast.es
88.151.18.91	A	campus.educastur.es
88.151.18.94	PTR	sigpac.asturias.es
88.151.18.95	PTR	pastos.princast.es
88.151.18.96	PTR	sauce.asturias.es
88.151.18.97	A+PTR	www2.princast.es
88.151.18.98	A+PTR	www3.princast.es
88.151.18.99	PTR	campus.educastur.es
88.151.18.99	A+PTR	www.educastur.es
88.151.18.99	A	www.educastur.net
88.151.18.101	PTR	servicios.educastur.es
88.151.18.102	PTR	idmua.educastur.es
88.151.18.103	PTR	projectsecoa.coordina.educastur.es
88.151.18.103	PTR	projectsie.coordina.educastur.es
88.151.18.103	PTR	spsecoa.coordina.educastur.es
88.151.18.105	PTR	www2.asturias.es
88.151.18.105	PTR	interinos.educastur.es
88.151.18.112	A	blog.educastur.es
88.151.18.115	PTR	corporativo.rtpa.es
88.151.18.116	PTR	www14.asturias.es
88.151.18.121	A+PTR	fis.hca.es
88.151.18.121	A	www.hca.es
88.151.18.147	PTR	procesomovilidad.asturias.es
88.151.18.147	A+PTR	gcsalud.asturias.org
88.151.18.147	PTR	www.sespa.pa
88.151.18.148	A+PTR	papi.sespa.princast.es
88.151.18.148	A	secureldap.sespa.princast.es
88.151.18.151	PTR	emmportal.asturias.org
88.151.18.152	A+PTR	sidra.asturias.es
88.151.18.208	A+PTR	formacion.asturias.es
88.151.19.1	A+PTR	rpv.tributas.es
88.151.19.3	A+PTR	usr.tributas.es
88.151.19.10	A+PTR	correo.tributas.es
88.151.19.10	A	correo.srrpa.es
88.151.19.24	A+PTR	www.tributasenasturias.es
88.151.19.24	A	tributasenasturias.es
88.151.19.31	A	www.tributas.es
88.151.19.32	A	imap.sespa.es
88.151.19.32	A	correo.sespa.es
88.151.19.46	PTR	correomx.sespa.es
88.151.19.46	PTR	mail2.asturias.org
88.151.19.50	A+PTR	mail2.idepa.es
88.151.19.50	A	asturex.org
88.151.19.50	A	www.idepa.es
88.151.19.54	A	www3.idepa.es
88.151.19.56	A+PTR	mail.idepa.es
88.151.19.56	A	mail.idepa.info
88.151.19.56	A	dns1.idepa.es
88.151.19.59	A	ptasturias.es
88.151.19.59	A	srp.es
88.151.19.62	A	www.srp.es
88.151.19.62	A	www.ptasturias.es
88.151.19.62	A	asturiasindustria40.es
88.151.19.67	PTR	aes.ocs.educastur.es
88.151.19.67	PTR	sip.ocs.educastur.es
88.151.19.67	PTR	sipexternal.ocs.educastur.es
88.151.19.166	A+PTR	sedemovil.asturias.es
88.151.19.169	PTR	tematico8.asturias.es
88.151.19.170	A+PTR	srvcorreo.sespa.princast.es