Robtex

Up: 216.163.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 216.163.0.0/20
Down right: 216.163.16.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.163.0.2	A+PTR	216-163-0-2.ritternet.com
216.163.0.8	A	216-163-0-8.ritternet.com
216.163.0.61	A	216-163-0-61.ritternet.com
216.163.0.70	A	216-163-0-70.ritternet.com
216.163.0.89	A	216-163-0-89.ritternet.com
216.163.0.250	A	216-163-0-250.ritternet.com
216.163.1.1	PTR	216-163-1-1.ritternet.com
216.163.1.52	A	aoexodus.com
216.163.1.209	A	alcwoodcraft.com
216.163.2.1	PTR	216-163-2-1.ritternet.com
216.163.5.1	PTR	216-163-5-1.ritternet.com
216.163.5.4	PTR	216-163-5-4.ritternet.com
216.163.6.18	PTR	216-163-6-18.ritternet.com
216.163.6.18	A	theslayerwithin.com
216.163.7.3	PTR	cameronconstructionco.com
216.163.7.3	PTR	cameronconstructionco.net
216.163.7.3	PTR	cameronconstructionco.org
216.163.7.35	PTR	portal.remoteemr.com
216.163.7.35	A	www.remoteemr.com
216.163.7.36	A+PTR	mail.remoteemr.com
216.163.7.36	PTR	smtp.remoteemr.com
216.163.7.36	A+PTR	webmail.remoteemr.com
216.163.7.58	PTR	mail.tecelectric.com
216.163.7.66	PTR	magictouchcorp.com
216.163.7.66	A	mail.magictouchcorp.com
216.163.7.114	PTR	kmsmail.kalmersolutions.com
216.163.7.138	A	*.jonesboro.org
216.163.7.139	A	daretobebad.com
216.163.7.174	PTR	iserver.wlpmm-firm.com
216.163.7.174	A	mail.wlpmm-firm.com
216.163.8.1	PTR	216-163-8-1.ritternet.com
216.163.8.161	PTR	216-163-8-161.ritternet.com
216.163.10.9	A	buildjonesboro.com
216.163.10.9	A	keithingram.com
216.163.10.94	A	mail.millarbell.com
216.163.11.35	PTR	216-163-11-35.ritternet.com
216.163.12.75	PTR	216-163-12-75.ritternet.com
216.163.13.3	PTR	216-163-13-3.ritternet.com
216.163.16.208	A	sub.vote
216.163.16.208	A	www.sub.vote
216.163.16.220	A	desarc.skyepbx.com
216.163.16.220	A	29847617.skyepbx.com
216.163.18.17	PTR	scm.mshs.org
216.163.19.2	PTR	216-163-19-2.ritternet.com
216.163.19.34	PTR	kmsmail.kalmersolutions.com
216.163.19.42	A	rmm.kalmersolutions.com
216.163.19.46	A	kmsmail.kalmersolutions.com
216.163.19.85	A	mail.cloptonclinic.com
216.163.19.86	A	ns.cloptonclinic.com
216.163.19.106	A	ritterfax.com
216.163.19.106	A	ritterfax.net
216.163.19.106	A	fax1.ritterfax.com
216.163.19.138	A	msexchange.stonebridgeinc.net
216.163.19.138	A	msexchange.stonebridgeinc.com
216.163.19.162	A	mail.mastercraft-lamps.com
216.163.19.170	A	mail.colsoncaster.com
216.163.19.170	A	mail.jarvispemco.com
216.163.19.173	A	mail.jarviscaster.com
216.163.20.2	A	vs1.ritternet.com
216.163.20.84	A	mail.coltandamanda.com
216.163.20.178	PTR	216-163-20-178.ritternet.com
216.163.22.2	PTR	216-163-22-2.ritternet.com
216.163.24.62	A	mail.methodistfamily.org
216.163.24.74	A	mail.dlinc.net
216.163.24.197	A	coltandamanda.com
216.163.24.235	A	mail.jettoncon.com
216.163.25.226	PTR	216-163-25-226.ritternet.com
216.163.26.36	A	www.thebestdate.ru
216.163.27.154	A	ctudor.com
216.163.27.224	PTR	216-163-27-224.ritternet.com