Robtex

Up: 81.88.58.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 81.88.58.0/25
Down right: 81.88.58.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.88.58.45	A+PTR	scandba.register.it
81.88.58.46	A+PTR	scandba.register.it
81.88.58.47	A+PTR	scandba.register.it
81.88.58.148	A	mx.pec-legal.com
81.88.58.148	A	mx.pec-societa.com
81.88.58.148	A	mx.pecmail.net
81.88.58.149	A	webmail.pec-email.com
81.88.58.155	A	pec.net
81.88.58.160	A+PTR	smtpout01.pec-email.com
81.88.58.161	PTR	smtpout02.pec-email.com
81.88.58.163	PTR	smtpout10.pec-email.com
81.88.58.165	A+PTR	smtpout06.pec-email.com
81.88.58.165	A	int-pec-legal.com
81.88.58.165	A	mx.int-pec-legal.com
81.88.58.167	A+PTR	smtpout08.pec-email.com
81.88.58.193	A	graziesilvio.splinder.com
81.88.58.193	A	*.mysexylady.splinder.com
81.88.58.193	A	kiappebelle.splinder.com
81.88.58.195	A	nominalia.com
81.88.58.195	A	www.nominalia.com
81.88.58.195	A	m.nominalia.com
81.88.58.196	A	smtp.leds.fr
81.88.58.196	A	smtp.jlhservices.fr
81.88.58.196	A	smtp.toggenburger.fr
81.88.58.198	A	amen.fr
81.88.58.198	A	controlpanel.amen.fr
81.88.58.198	A	www.amen.fr
81.88.58.199	A	amen.pt
81.88.58.199	A	trk.amen.pt
81.88.58.199	A	clarence.com
81.88.58.204	A	pop.securemail.pro
81.88.58.205	A	www.amenworld.nl
81.88.58.206	A	ns3.plaindns.net
81.88.58.206	A	webmailpro.register.it
81.88.58.209	A	hostsecure-simply-winspace-es.securesslhosting.es
81.88.58.213	PTR	bizanga.amenworld.com
81.88.58.213	A	mxav.aomtoulon.com
81.88.58.213	A	mxav.castorethomme.org
81.88.58.241	A	pim.register.it
81.88.58.245	A	pim.amen.pt
81.88.58.247	PTR	floating-self-ip-address-01.register.it