Robtex

Up: 217.64.228.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 217.64.228.0/25
Down right: 217.64.228.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
217.64.228.2	PTR	gi10-hea-rc2.uk.attenda.net
217.64.228.34	PTR	gi20-hea-rc2.uk.attenda.net
217.64.228.38	A+PTR	l121-hea-rc6.uk.attenda.net
217.64.228.65	A	mail.river-island.com
217.64.228.116	A	webservice.esafe100.com
217.64.228.121	A+PTR	www.againstmalaria.com
217.64.228.121	A	news.againstmalaria.com
217.64.228.121	A	againstmalaria.com
217.64.228.123	A+PTR	wsm10web02.uk.attenda.net
217.64.228.125	A	news.againstmalaria.com
217.64.228.125	A	swimforterri.org
217.64.228.125	A	blog.againstmalaria.com
217.64.228.137	A	evolve.cityandguilds.com
217.64.228.138	A	www.smartscreen.co.uk
217.64.228.153	A	www.walled-garden.com
217.64.228.161	A	southernwater.co.uk
217.64.228.161	A	www.southernwater.co.uk
217.64.228.169	A	auravita.co.uk
217.64.228.169	A	*.appspot.com--www.sunhuitoulon.com
217.64.228.169	A	www.auravita.com
217.64.228.181	A+PTR	mail.rfu.com
217.64.228.201	A	wds.walled-garden.com
217.64.228.206	A	autoglass.mobi
217.64.228.209	A	3mail.com
217.64.228.209	A	3mail.co.uk
217.64.228.209	A	*.3mail.com
217.64.228.210	A	www.virginmobile.com.qa
217.64.228.210	A	virginmobile.com.qa
217.64.228.211	A	www.virginmobile.qtel.qa
217.64.228.211	A	virginmobile.qtel.qa
217.64.228.217	A+PTR	www.christianaid.ngo
217.64.228.217	PTR	www.christianaidgifts.com
217.64.228.217	PTR	www.christianaid.tv
217.64.228.220	PTR	staging-drupalmultisite.christianaid.org.uk
217.64.228.220	PTR	prototype.globalgang.org
217.64.228.220	A+PTR	caweek.ie
217.64.228.228	A	wandsworthbsf.intouchpcs.com
217.64.228.233	A	kenwakepensionscheme.com
217.64.228.243	A+PTR	webmail.northants-ecl.gov.uk