Robtex

Up: 91.234.212.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 91.234.214.0/24
Down right: 91.234.215.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
91.234.214.10	A+PTR	mail.islington.gov.uk
91.234.214.11	PTR	mail.islington.gov.uk
91.234.214.11	A+PTR	mx1.islington.gov.uk
91.234.214.12	PTR	mail.islington.gov.uk
91.234.214.12	A+PTR	mx3.islington.gov.uk
91.234.214.13	PTR	mail.islington.co.uk
91.234.214.13	A+PTR	mx4.islington.gov.uk
91.234.214.14	PTR	voltage-pp-0000.islington.gov.uk
91.234.214.16	A	yoisemailsrv01.islington.gov.uk
91.234.214.23	A	controccuat.islington.gov.uk
91.234.214.200	A	www.nrpfnetwork.org.uk
91.234.214.200	A	www.islingtonscb.org.uk
91.234.214.209	A	homesforislington.org.uk
91.234.214.209	A	www.homesforislington.org.uk
91.234.215.162	A+PTR	fmo001.xsnews.nl
91.234.215.192	PTR	news.4ux.nl
91.234.215.193	A	reader.download2day.nl
91.234.215.193	A	reader.wondernews.eu
91.234.215.193	A	news.download2day.com
91.234.215.195	PTR	news.usenext.de
91.234.215.197	A	usenetnl-fra-v2.xennanews.com
91.234.215.199	A	flat.usenext.de
91.234.215.201	A	vip1.de.xennanews.com
91.234.215.202	A+PTR	vip2.de.xennanews.com
91.234.215.202	A	aviteo-de-v2.xennanews.com
91.234.215.203	A	dream.hostredirects.com
91.234.215.205	A+PTR	vip5.de.xennanews.com
91.234.215.206	A	news.i-telligent.com
91.234.215.206	A	reader.i-telligent.com
91.234.215.210	A+PTR	vip10.de.xennanews.com
91.234.215.211	A+PTR	vip11.de.xennanews.com
91.234.215.237	A	mail.usebytes.net
91.234.215.239	A+PTR	fws001.xennanews.com
91.234.215.239	A	mail.xennanews.com
91.234.215.239	A	www.xennanews.com
91.234.215.240	A+PTR	noc.de.xennanews.com