Robtex

Up: 5.255.128.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 5.255.136.0/22
Down right: 5.255.140.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
5.255.136.7	A+PTR	ns1.hyperneph.com
5.255.136.20	PTR	fulcrumbrewery.com
5.255.136.20	PTR	clustergs1.hypedev.com
5.255.136.20	PTR	www.hyperneph.com
5.255.136.21	PTR	custftpb.hyperneph.com
5.255.136.28	A	www.thebrew.co.uk
5.255.136.28	A	thebrew.co.uk
5.255.136.33	A+PTR	jca.leafpile.co.uk
5.255.136.71	A+PTR	dtstage.hypedev.com
5.255.136.71	A	connectabilityhub.com
5.255.136.72	A	thedt.org
5.255.136.72	A	www.disabilities-trust.org.uk
5.255.136.72	A	thedtgroup.org
5.255.136.73	PTR	surveyce.thehaloworks.com
5.255.136.74	PTR	guardiance.thehaloworks.com
5.255.136.76	PTR	rc.hyperneph.com
5.255.136.82	A+PTR	kaseya.fulcrum.support
5.255.136.206	A+PTR	pbd.fulcrumit.eu
5.255.136.208	A+PTR	gen3.fulcrumit.eu
5.255.137.7	A+PTR	ns2.hyperneph.com
5.255.137.17	PTR	mail.fulcrumit.eu
5.255.137.20	A+PTR	cluster1.hyperneph.com
5.255.137.20	A	vapormax.co.uk
5.255.137.20	A	administrator.campsie.com
5.255.137.21	PTR	custftpa.hyperneph.com
5.255.137.22	PTR	millivres.hyperneph.com
5.255.137.24	A+PTR	git.hyperneph.com
5.255.137.38	PTR	bond.harrietlegacy.uk
5.255.137.76	A	fourcpl.co.uk
5.255.137.205	A+PTR	phonetestnewip.fulcrumit.eu
5.255.138.4	A+PTR	secphone.fulcrumit.eu
5.255.138.5	A+PTR	gateway.fulcrumit.eu
5.255.138.10	A	prettybirdukserver.com
5.255.138.30	A	harry-hotspur.com
5.255.138.35	A	onsite-now.com
5.255.138.72	PTR	juliefut.hyperneph.com
5.255.138.72	A	www.russellgroup.ac.uk
5.255.138.72	A	flowersgallery.com
5.255.138.74	PTR	tttstaging.hyperneph.com
5.255.138.75	PTR	hyperts1.winfarm.hyperneph.com
5.255.138.76	PTR	divamag.co.uk
5.255.138.83	PTR	staging.matchpint.co.uk
5.255.138.85	A+PTR	pbx.fulcrumit.eu
5.255.138.99	A	matchpint.co.uk
5.255.138.127	A+PTR	pixage.sportsrevolution.co.uk
5.255.138.138	A+PTR	gen2.fulcrumit.eu
5.255.138.139	A+PTR	srev.fulcrumit.eu
5.255.138.140	A+PTR	pod.fulcrumit.eu
5.255.138.141	A+PTR	mhk.fulcrumit.eu
5.255.138.145	A+PTR	clubtickets.fulcrumit.eu
5.255.138.146	A+PTR	thsi.fulcrumit.eu
5.255.138.147	A+PTR	fmit.fulcrumit.eu
5.255.138.148	A+PTR	morris.fulcrumit.eu