Robtex

Up: 149.154.88.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 149.154.89.0/25
Down right: 149.154.89.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
149.154.89.11	A+PTR	smtp01.gbi.bcc.it
149.154.89.12	A	posta.gbi.bcc.it
149.154.89.17	A+PTR	accademia.bcc.it
149.154.89.17	PTR	campus.accademia.bcc.it
149.154.89.17	PTR	curriculum.accademia.bcc.it
149.154.89.22	A+PTR	smtp02.gbi.bcc.it
149.154.89.23	A+PTR	wac.gbi.bcc.it
149.154.89.32	PTR	sip.gbi.bcc.it
149.154.89.45	PTR	sip.gbi.bcc.it
149.154.89.45	A+PTR	sip.iccrea.bcc.it
149.154.89.45	PTR	sip.iccreabi.bcc.it
149.154.89.46	A+PTR	sip.fgd.bcc.it
149.154.89.46	A+PTR	sip.iccreah.bcc.it
149.154.89.46	PTR	sip.federcasse.bcc.it
149.154.89.47	A+PTR	sip.iccreah.bcc.it
149.154.89.47	PTR	sip.bccslt.bcc.it
149.154.89.47	PTR	sip.fgo.bcc.it