Robtex

Up: 217.20.40.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 217.20.44.0/23
Down right: 217.20.46.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
217.20.44.6	PTR	ntp.lon2.telecitygroup.net
217.20.44.13	PTR	572-border76-01.lon2.telecity.net
217.20.44.61	PTR	4-12-border76-01.lon1.telecity.net
217.20.44.186	PTR	te4-1-dist65-02.lon10.telecity.net
217.20.44.218	PTR	te4-1-dist65-01.lon10.telecity.net
217.20.44.226	PTR	532-dist65-01.lon3.telecity.net
217.20.45.20	A	www.phillipcapitaluk.com
217.20.45.20	A	phillipcapitaluk.com
217.20.45.36	A	drcglb1.saseurope.com
217.20.45.36	A	drcglb1.sungard.com
217.20.45.40	A	drcgtm1.cwp.sungardns.com
217.20.45.82	PTR	www.globalgateway.org.uk
217.20.45.84	PTR	web2.globalgateway.org.uk
217.20.45.84	A	vpn-tcy.thetrainline.com
217.20.45.86	PTR	mx1.globalgateway.org.uk
217.20.45.141	A+PTR	vc2.ddc.lon10.telecity.net
217.20.45.212	A+PTR	bl05-ch01.ddc.lon10.telecity.net
217.20.45.248	A+PTR	bl09-ch02.ddc.lon10.telecity.net
217.20.45.250	A+PTR	bl11-ch02.ddc.lon10.telecity.net
217.20.45.250	A	angliatv.com
217.20.45.252	PTR	bl13-ch02.ddc.lon10.telecity.net
217.20.46.36	A	media-planner.co.uk
217.20.46.36	A	marketing-planner.co.uk
217.20.46.36	A	forwardplanner.com
217.20.46.46	A	hilton.precise.co.uk
217.20.46.117	A	wherewomenwork.com
217.20.46.117	A	www.wheretowork.com
217.20.46.117	A	wherewomenwork.com.au
217.20.46.235	A	push-ios.racingpost.com
217.20.46.236	A	push-android.racingpost.com
217.20.46.237	A	push-mobile.racingpost.com
217.20.46.238	A	push-rp1.racingpost.com
217.20.46.239	A	push-racingpost.racingpost.com
217.20.46.242	A	push0.soccerbase.com
217.20.46.242	A	push0.racingpost.com
217.20.46.246	A	pushtest.racingpost.com
217.20.46.248	A	push-cards.racingpost.com
217.20.46.249	A	push-profiles.racingpost.com
217.20.46.250	A	push-homepage.racingpost.com
217.20.46.251	A	push-news.racingpost.com
217.20.47.5	A	pokerstarsplaymoney.com
217.20.47.5	A	pokerstarstest.com
217.20.47.5	A	oldfordgroup.com
217.20.47.20	A	adventcheck.com
217.20.47.36	PTR	prod.aconex.co.uk
217.20.47.37	PTR	mail.prod.aconex.co.uk
217.20.47.38	PTR	mail.prod.aconex.co.uk
217.20.47.41	PTR	mail.prod.aconex.co.uk
217.20.47.48	A	wawwa.uat002.fmgdevelopment.com
217.20.47.65	PTR	alta-bel-a.lon.ipmh.telecity.net
217.20.47.66	PTR	mail.intelliq.com
217.20.47.71	A	www.bisonmag.com
217.20.47.147	PTR	gatewaycon-hbx-b.lon.ipmh.telecity.net
217.20.47.165	A	smtp.securepg.com
217.20.47.167	A	collegescarves.eu
217.20.47.183	A	securepg.com
217.20.47.201	A	virginwine.com