Robtex

Up: 87.236.56.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 87.236.56.0/25
Down right: 87.236.56.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
87.236.56.18	A+PTR	dns0.itinsideout.com
87.236.56.19	A+PTR	dns2.itinsideout.com
87.236.56.50	A+PTR	dns1.itinsideout.com
87.236.56.51	A+PTR	dns3.itinsideout.com
87.236.56.128	PTR	filesync.itio.com
87.236.56.141	PTR	www.bookitandchargem.co.uk
87.236.56.141	A	tenementsteps.co.uk
87.236.56.141	A	bookitandchargem.co.uk
87.236.56.142	PTR	online50.net
87.236.56.142	A	ambitionadvantage.net
87.236.56.142	A	ambitionlogistics.com
87.236.56.143	A+PTR	netserver.networkwizardry.com
87.236.56.143	A	onlinefifty.com
87.236.56.143	A	mailshotfactory.com
87.236.56.153	A	webconference.itio.com
87.236.56.159	A+PTR	hr.itio.com
87.236.56.159	A	ambitionhumanresources.com
87.236.56.160	A+PTR	secure.itio.com
87.236.56.160	A	itinsideout.com
87.236.56.160	A	itio.com
87.236.56.161	A+PTR	nsh01.itio.com
87.236.56.161	A	ambitionforms.com
87.236.56.170	PTR	www.banksnetasp.net