Robtex

Up: 80.64.52.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 80.64.53.0/25
Down right: 80.64.53.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
80.64.53.1	A	highwayonegate.calleva.net
80.64.53.2	A	astute.calleva.net
80.64.53.3	A+PTR	dns0.calleva.net
80.64.53.3	A	dns1.calleva.net
80.64.53.4	A+PTR	dns1.uk-plc.net
80.64.53.7	A	mail-list.uk-plc.net
80.64.53.9	A	mail.software.plc.uk
80.64.53.9	A	mail.uk-plc.net
80.64.53.15	A	secure.uk-plc.net
80.64.53.18	A	browse.uk-plc.net
80.64.53.22	A	websites.ukplc.net
80.64.53.27	A	schools.plc.uk
80.64.53.29	A	software.plc.uk
80.64.53.31	A	spend-insight.net
80.64.53.31	A	bobfar.co.uk
80.64.53.31	A	o-xml.info
80.64.53.35	A	www.uk-plc.net
80.64.53.40	PTR	uk-plc.net
80.64.53.40	A	www.marketingfm.com
80.64.53.40	A	limited-company-formation.co.uk
80.64.53.45	A+PTR	support.uk-plc.net
80.64.53.45	A	wysiwyg.uk-plc.net
80.64.53.48	A	spend-insight.net
80.64.53.48	A	bobfar.co.uk
80.64.53.48	A	o-xml.info
80.64.53.50	A	email.uk-plc.net
80.64.53.50	A	upload.uk-plc.net
80.64.53.58	A	companyadmin.uk-plc.net
80.64.53.60	A	mananindustries.co.in
80.64.53.60	A	ethnicblueevents.com
80.64.53.60	A	hiraint.com
80.64.53.70	A	www.suppliertradingcentre.net
80.64.53.70	A	suppliertradingcentre.net
80.64.53.70	A	suppliertradingcentre.com
80.64.53.89	A	uk-plc.biz
80.64.53.92	A	breeze-e.com
80.64.53.100	A	mail.piscea.com
80.64.53.100	A	mail.gkdsportscars.com
80.64.53.100	A	webmail.uk-plc.net
80.64.53.101	A	webmail1.uk-plc.net
80.64.53.103	A	webmail3.uk-plc.net
80.64.53.104	A	webmail4.uk-plc.net
80.64.53.105	A	webmail5.uk-plc.net
80.64.53.106	A	webmail6.uk-plc.net
80.64.53.121	A+PTR	smtp1.uk-plc.net
80.64.53.121	A	mx1.uk-plc.net
80.64.53.122	A+PTR	smtp2.uk-plc.net
80.64.53.122	A	mx2.uk-plc.net
80.64.53.123	A	mx3.uk-plc.net
80.64.53.123	A	smtp3.uk-plc.net
80.64.53.124	A+PTR	smtp4.uk-plc.net
80.64.53.124	A	mx4.uk-plc.net
80.64.53.125	A+PTR	smtp5.uk-plc.net
80.64.53.125	A	mx1.uk-plc.net
80.64.53.126	A+PTR	smtp6.uk-plc.net
80.64.53.126	A	mx2.uk-plc.net
80.64.53.127	A+PTR	smtp7.uk-plc.net
80.64.53.128	A	mx4.uk-plc.net
80.64.53.128	A	smtp8.uk-plc.net
80.64.53.129	A	mx1.uk-plc.net
80.64.53.129	A	smtp9.uk-plc.net
80.64.53.130	A+PTR	smtp10.uk-plc.net
80.64.53.130	A	mx2.uk-plc.net
80.64.53.131	A	smtp11.uk-plc.net
80.64.53.132	A+PTR	smtp12.uk-plc.net
80.64.53.132	A	mx4.uk-plc.net
80.64.53.179	A	dnsprimary.uk-plc.net
80.64.53.180	A	www.calleva.com
80.64.53.180	A	naturalbeautysalon.co.uk
80.64.53.180	A	supplieradoption.net
80.64.53.192	A	root.supplierenabler.net
80.64.53.194	A	uk-plc.com
80.64.53.195	A	images.uk-plc.net
80.64.53.198	A	qmail0.software.plc.uk
80.64.53.199	A	qmail2.uk-plc.net
80.64.53.203	A+PTR	qmail3.uk-plc.net
80.64.53.203	A	heepsuppliers.com
80.64.53.203	A	mailbackup.uk-plc.net
80.64.53.204	A+PTR	qmail4.uk-plc.net
80.64.53.204	A	clientmail.uk-plc.net
80.64.53.204	A	mailserver.uk-plc.net
80.64.53.205	A	mailserver2.uk-plc.net
80.64.53.206	A	shootershillcapital.co.uk
80.64.53.206	A	clientwebserver.uk-plc.net
80.64.53.207	A	mailserver3.uk-plc.net
80.64.53.209	PTR	phphost.uk-plc.net
80.64.53.209	A	roslynswim.co.uk
80.64.53.209	A	shellfishkl.co.uk
80.64.53.213	A	mail2.uk-plc.net
80.64.53.213	A	qmail5.uk-plc.net
80.64.53.215	A	qmail7.uk-plc.net
80.64.53.215	A	qmail9.uk-plc.net
80.64.53.216	A	qmail10.uk-plc.net
80.64.53.220	A+PTR	sender.uk-plc.net
80.64.53.225	A	imaginist.co.uk
80.64.53.225	A	emacey.com
80.64.53.225	A	crackedflag.com
80.64.53.226	A	eagleburner.com
80.64.53.226	A	mid-den.com
80.64.53.226	A	rogerbaileyconsulting.com
80.64.53.231	A	linux1.uk-plc.net
80.64.53.231	A	parkingbristol.co.uk
80.64.53.231	A	regreen.co.uk
80.64.53.236	A	schoolswimming.org
80.64.53.239	A	haportal.net
80.64.53.240	A	angelayouels.com
80.64.53.240	A	t1systems.co.uk
80.64.53.240	A	camblue.co.uk
80.64.53.241	A	www.ab-direct.com
80.64.53.241	A	antibodyexperts.com
80.64.53.241	A	abdserotec.uk-plc.net
80.64.53.252	A	cc-uk-vsnl-01-s-01-v-13.controlcircle.com
80.64.53.254	PTR	cc-uk-vsnl-01-s-01-vrrp-13.controlcircle.com