Robtex

Up: 193.133.16.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 193.133.16.0/22
Down right: 193.133.20.0/22

IP	Type	Hostname
193.133.16.149	A	london.shca.com
193.133.17.1	PTR	exchange1.weir-tech.co.uk
193.133.17.1	A	mail.weir-imag.be
193.133.22.170	PTR	fm305-11.facility.pipex.com
193.133.22.170	A	www.mcb.co.uk
193.133.22.170	A	mcb.co.uk
193.133.22.241	PTR	www.adobe.fr
193.133.22.243	PTR	www.adobe.se