Robtex

Up: 5.0.0.0/13
Can't show all results, try to descend to a more specific CIDR
Down left: 5.4.0.0/15
Down right: 5.6.0.0/15
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
5.4.0.0	PTR	dynamic-005-004-000-000.5.4.pool.telefonica.de
5.4.3.2	A	beratungimgesundheitswesen.de
5.4.3.2	A	institut-ibg.net
5.4.3.2	A	institut-ibg.de
5.4.5.4	A	readyupgrades.com
5.4.9.2	A	s.hibabyran.com
5.4.142.194	A	regane.net
5.4.142.194	A	mail.regane.net
5.4.143.252	A	tidy-books.eu
5.4.145.119	A	bridgeportdowntowner.com
5.5.0.1	A	mail.canadiantedcruz.com
5.5.0.1	A	mail.tedcruzisfromcanada.com
5.5.0.1	A	tedcruzisfromcanada.com
5.5.0.69	A	cdcscorebot.com
5.5.5.0	A	teleorg.shop
5.5.5.1	A	pocket-your-dollars.com
5.5.5.2	A	fastshinglescure.com
5.5.5.5	A	peterstroi.ru
5.5.5.9	A	alifilm.net
5.5.17.196	A	qaptivate.com
5.5.32.53	A	www.qqbm.net
5.5.55.99	A	alifilm.net
5.5.87.17	PTR	dynamic-005-005-087-017.5.5.pool.telefonica.de
5.5.135.134	A	www.zmn.ro
5.5.143.193	A	feustegeh.com
5.5.254.246	PTR	dynamic-005-005-254-246.5.5.pool.telefonica.de
5.6.3.0	A	junyianjun.com
5.6.7.8	A	clareplustony.com
5.6.7.8	A	mail.xn--1-zub.com
5.6.7.8	A	img.100data.com
5.6.9.101	A	servidreams.info
5.6.19.135	A	grapevine.city
5.6.19.246	A	jeuw.fr
5.6.58.83	PTR	dynamic-005-006-058-083.5.6.pool.telefonica.de
5.6.99.8	A	100sy.net
5.6.109.80	A	kinohm.net
5.6.129.0	PTR	dynamic-005-006-129-000.5.6.pool.telefonica.de
5.7.27.18	A	www.carryduffauctions.co.uk
5.7.27.18	A	carryduffauctions.co.uk
5.7.168.4	A	contentdclarer.ooo
5.7.255.255	PTR	dynamic-005-007-255-255.5.7.pool.telefonica.de