Robtex

Up: 81.201.80.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 81.201.80.0/22
Down right: 81.201.84.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.201.82.25	A	sip.inum.net
81.201.82.26	A+PTR	mail.voxbone.com
81.201.82.26	A	bebr1mx-01.voxbone.com
81.201.82.42	A	www.inum.net
81.201.82.123	A	voxbone.cl
81.201.82.123	A	voxbone.co.ve
81.201.82.123	A	voxbone.hu
81.201.82.163	A	bebr1fax01.voxbone.com
81.201.82.164	A	bebr1fax02.voxbone.com
81.201.84.148	A+PTR	usla1fax01.voxbone.com
81.201.84.149	A+PTR	usla1fax02.voxbone.com