Robtex

Up: 5.179.64.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 5.179.72.0/22
Down right: 5.179.76.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
5.179.72.19	A+PTR	lns1.dsl.4com.co.uk
5.179.72.20	A+PTR	lns2.dsl.4com.co.uk
5.179.72.85	PTR	dns-auth1.dsl.4com.co.uk
5.179.72.85	A	ns0.dsl.4com.co.uk
5.179.72.93	A+PTR	dns-auth2.dsl.4com.co.uk
5.179.72.93	A	ns1.dsl.4com.co.uk
5.179.72.98	A+PTR	backup1.dsl.4com.co.uk
5.179.72.102	A+PTR	backup2.dsl.4com.co.uk
5.179.72.116	A+PTR	mon1.dsl.4com.co.uk
5.179.72.124	A+PTR	mon2.dsl.4com.co.uk
5.179.72.132	A+PTR	smtp1.dsl.4com.co.uk
5.179.72.142	A+PTR	smtp2.dsl.4com.co.uk
5.179.72.149	PTR	http.gw.dsl.4com.co.uk
5.179.72.150	A+PTR	web1.dsl.4com.co.uk
5.179.72.153	PTR	http2.gw.dsl.4com.co.uk
5.179.72.154	PTR	web2.dsl.4com.co.uk
5.179.72.196	A	xsp1.4com.im
5.179.72.196	A	xsp4phone.4com.im
5.179.72.197	A	xsp4phone.4com.im
5.179.72.198	A	dms.4com.im
5.179.72.199	A	dms.4com.im
5.179.72.200	PTR	mail.4com.im
5.179.72.200	A	ns1.4com.im
5.179.72.201	PTR	mail1.4com.im
5.179.72.201	A	ns2.4com.im
5.179.72.204	A	4com.im
5.179.72.204	A	sip.4com.im
5.179.72.227	A	xspcti.4com.im
5.179.72.227	A	xsp.4com.im
5.179.72.228	A	xspcti.4com.im
5.179.72.228	A	xsp.4com.im
5.179.73.34	A+PTR	webmail.link2energy.co.uk
5.179.73.64	PTR	smartsystemsuk.com
5.179.73.65	PTR	smartsystemsuk.com
5.179.73.66	PTR	smartsystemsuk.com
5.179.73.66	A	mail.smartsystemsuk.com
5.179.73.67	PTR	smartsystemsuk.com
5.179.73.72	PTR	mail.lancepublishing.co.uk
5.179.73.77	A	mail.exactdewatering.com
5.179.73.92	A	cc-server.conceptcables.com
5.179.73.92	A	plasticable.co.uk
5.179.73.123	PTR	port-123-73.dsl.4com.co.uk
5.179.73.123	A	mailgate.creative-solutions-direct.co.uk
5.179.73.125	A	mocokenu.com
5.179.73.178	PTR	coolairvw.co.uk
5.179.73.181	A	port-181-73.dsl.4com.co.uk
5.179.73.181	A	remote.parryandevans.co.uk
5.179.73.182	A	mail.solution-uk.com
5.179.73.191	A	remote.pjtowey.co.uk
5.179.73.211	A+PTR	mail.studrock.co.uk
5.179.73.233	PTR	mailserver.primarywatertreatments.co.uk
5.179.73.233	A	mailserver.primarywatergroup.com
5.179.73.240	A+PTR	office.colsanmicro.com
5.179.73.245	A	easystart.serveftp.net
5.179.73.245	A	mail.batt-man.co.uk
5.179.74.18	A+PTR	mail.firefm.com
5.179.74.44	A	mail.nestleruk.com
5.179.74.44	A	mail.pagepartnership.co.uk
5.179.74.82	A	backupmail.c-menvironmental.com
5.179.74.121	PTR	mail.flamb.co.uk
5.179.74.152	PTR	connect.ccsbuilding.co.uk
5.179.74.156	A	port-156-74.dsl.4com.co.uk
5.179.74.201	A	mail.tse-ups.com
5.179.74.217	A	remote.iims.org.uk
5.179.74.234	A+PTR	remote.csltransport.co.uk
5.179.74.239	A	remote-leeac.com
5.179.75.1	A+PTR	remote.tacollege.com
5.179.75.2	PTR	port-2-75.dsl.4com.co.uk
5.179.75.24	PTR	port-24-75.dsl.4com.co.uk
5.179.75.24	A	platinumpresslimited.co.uk
5.179.75.29	A	port-29-75.dsl.4com.co.uk
5.179.75.34	A	golfclub.dyndns.org
5.179.75.38	A	mail.bacs-training.co.uk
5.179.75.45	A	remote.bmsecurity.co.uk
5.179.75.45	A	mail.bmsecurity.co.uk
5.179.75.46	A	port-46-75.dsl.4com.co.uk
5.179.75.46	A	mail.ugly.org
5.179.75.69	A	port-69-75.dsl.4com.co.uk
5.179.75.75	A	mail.richmond-holidays.com
5.179.75.83	A+PTR	mail.gsicontractservices.co.uk
5.179.75.86	A	remote.pcc-ltd.com
5.179.75.118	A	mail.dwdsl.net
5.179.75.130	PTR	mail.guardianfilm.co.uk
5.179.75.130	A	mail.guardianwindowfilm.co.uk
5.179.75.131	A+PTR	port-131-75.dsl.4com.co.uk
5.179.75.145	PTR	port-145-75.dsl.4com.co.uk
5.179.75.145	A	mail.manor-design.co.uk
5.179.75.175	A	mail.kortpropulsion.com
5.179.75.176	PTR	port-176-75.dsl.4com.co.uk
5.179.75.176	A	remote.kingpin-tyres.com
5.179.75.176	A	mail.kingpin-tyres.com
5.179.75.212	A	remote.twbakeries.co.uk
5.179.75.251	A	backup.morganhampton.co.uk
5.179.75.252	A	mail.morganhampton.co.uk
5.179.76.12	A	mail.elitecontracts.net
5.179.76.14	A	mail.chriscookprint.co.uk
5.179.76.20	A	mail.teachermarks.com
5.179.76.20	A	mail.teachermarks.co.uk
5.179.76.20	A	remote.teachermarks.com
5.179.76.35	PTR	swiftprintuk.net
5.179.76.35	A	mail.swiftprintuk.net
5.179.76.55	A	mail.anthonyandjarvie.co.uk
5.179.76.67	PTR	mail.lucyandmartinrecycling.co.uk
5.179.76.79	A	remote.drukker.co.uk
5.179.76.79	A	ctdlaw.networkfish.com
5.179.76.87	A	remote.boxstation.co.uk
5.179.76.124	A	remote.btl-group.co.uk
5.179.76.124	A	remote.sawsuk.com
5.179.76.141	A	havas-digital.ru
5.179.76.141	A	mail.johalandcompany.com
5.179.76.149	A	mail.cresswellrumsey.co.uk
5.179.76.149	A	cresswellrumsey.co.uk
5.179.76.193	PTR	mail.gatespartnership.co.uk
5.179.76.193	A	mail.gates-safetymanagement.co.uk
5.179.76.227	A	mail.plasticcardsolutions.co.uk
5.179.77.40	PTR	port-40-77.dsl.4com.co.uk
5.179.77.43	A	mail.rollersfast.com
5.179.77.50	PTR	mail.bartramtimber.co.uk