Robtex

Up: 185.68.168.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 185.68.172.0/23
Down right: 185.68.174.0/23

IP	Type	Hostname
185.68.173.131	A+PTR	mx1.vagroupcloud.com
185.68.173.134	A	biggamesng.com
185.68.173.134	A	mail.biggamesng.com
185.68.173.135	PTR	smtp.vagroupcloud.com
185.68.173.135	A	mail.theissuemanagers.com
185.68.173.135	A	mail.theissuemakers.nl
185.68.173.136	PTR	185-68-173-136.iventmobile.com
185.68.173.136	A	mail.issuemonitor.nl
185.68.173.138	A+PTR	mx2.vagroupcloud.com
185.68.173.140	A	mail.issuemonitor.nl
185.68.173.140	A	mail.issuekalender.nl
185.68.174.6	A+PTR	ns2-auth.ivm-nl.net
185.68.174.30	A	www.zeewolde.nu
185.68.175.6	A+PTR	ns1-auth.ivm-nl.net
185.68.175.22	A	mail.iventmobile.nl
185.68.175.25	A+PTR	mx1.ivm-nl.net
185.68.175.27	PTR	mail.legendhasit.nl
185.68.175.27	PTR	185-68-175-27.iventmobile.com
185.68.175.27	A	legendhasit.nl
185.68.175.30	A	mail.zeewolde.nu