Robtex

Up: 192.53.64.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 192.53.96.0/20
Down right: 192.53.112.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
192.53.97.2	A+PTR	ns1.colorcon.com
192.53.97.2	A	ns1.berwind.com
192.53.97.2	A	coatingschool.org
192.53.97.3	PTR	relay1.colorcon.com
192.53.97.3	A	coatingschool.org
192.53.100.1	A+PTR	host-192-53-100-1.thebook.hp.com
192.53.103.98	PTR	public.ptb.de
192.53.103.103	A	ptbtime3.ptb.de
192.53.103.103	A	ntp3.ptb.de
192.53.103.104	A	ntp2.ptb.de
192.53.103.104	A	ptbtime2.ptb.de
192.53.103.123	A	public.ptb.de
192.53.103.129	A+PTR	u99129.bs.ptb.de
192.53.103.129	A	www.imeko.org
192.53.103.130	PTR	u99130.bs.ptb.de
192.53.103.130	A	ih-ext20.ptb.de
192.53.103.131	PTR	subversion.ptb.de
192.53.103.132	A	ex-network.org
192.53.103.162	A	public.ptb.de
192.53.103.173	A	helmholtz-fonds.de
192.53.103.173	A	verlag-jungewissenschaft.de
192.53.103.173	A	www.quantummetrology.de
192.53.103.225	A+PTR	win-gw1.ptb.de
192.53.103.226	PTR	d99226.ptb.de
192.53.103.227	PTR	d99227.ptb.de
192.53.103.229	A	vce99229.ptb.de
192.53.103.232	A	vce99232.ptb.de
192.53.103.250	A	portal.ptb.de
192.53.103.254	A	portal.ptb.de
192.53.104.1	PTR	mail.astro.ch
192.53.104.1	PTR	as73.astrodienst.ch
192.53.104.1	A	as73.astro.ch
192.53.104.2	A+PTR	as80.astro.ch
192.53.104.2	A+PTR	mail.astro.ch
192.53.104.3	A+PTR	as81.astro.ch
192.53.104.4	PTR	wwu.astro.ch
192.53.104.4	PTR	wwu.astro.com
192.53.104.40	A+PTR	ms0.astro.ch
192.53.104.41	A+PTR	mc1.astro.ch
192.53.104.42	A+PTR	mc2.astro.ch
192.53.104.43	A+PTR	mc3.astro.ch
192.53.104.70	A+PTR	it0.astro.ch
192.53.104.71	A+PTR	it1.astro.ch
192.53.104.72	A+PTR	it2.astro.ch
192.53.104.73	A+PTR	it3.astro.ch
192.53.104.98	PTR	w98.astro.com
192.53.104.99	A+PTR	w99.astro.com
192.53.104.100	A+PTR	lv2.astro.com
192.53.104.241	A+PTR	wwc.astro.com
192.53.104.242	A+PTR	www.astro.com
192.53.104.242	A	astro.ch
192.53.104.242	A	pairhost.astro.ch
192.53.109.1	A	host-192-53-109-1.thebook.hp.com
192.53.112.36	PTR	li2208-36.members.linode.com
192.53.113.6	A	6tw.us
192.53.115.117	A	cekindo.vn
192.53.115.152	A	kuncilagu.net
192.53.115.152	A	nulscript.com
192.53.118.249	PTR	di.nongfuyun.cn
192.53.120.97	A	www.keywordplanner.net
192.53.120.148	A	mx1.namisolutions.com
192.53.121.89	PTR	li2217-89.members.linode.com
192.53.123.188	A	topsold.com
192.53.123.202	PTR	192-53-123-202.ip.linodeusercontent.com
192.53.124.40	A	www.ai-dev.net
192.53.124.40	A	ai-dev.net
192.53.125.62	A	route21.nl
192.53.125.62	A	mail.route21.nl
192.53.125.62	A	mail.sapservice.nl
192.53.125.69	PTR	li2235-69.members.linode.com
192.53.127.98	A	d3e.ru
192.53.127.232	PTR	li2237-232.members.linode.com
192.53.127.232	A	real-fc.ru