Robtex

Up: 5.11.34.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 5.11.34.0/25
Down right: 5.11.34.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
5.11.34.130	A	mx3.dakota.eu
5.11.34.130	A	dakservice.it
5.11.34.130	A	mx3.dakotaitalia.com
5.11.34.150	A+PTR	mail.fridle.it
5.11.34.178	A+PTR	outlook.efsw.it
5.11.34.178	A	mail.efsw.it
5.11.34.246	A+PTR	mail.pentaassociati.it