Robtex

Up: 208.56.16.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 208.56.20.0/23
Down right: 208.56.22.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
208.56.20.12	A	niit.pureservers.alabanza.com
208.56.20.12	A	mail.niit.pureservers.alabanza.com
208.56.20.14	A	pro.qa.alabanza.com
208.56.20.17	A	vipspirit.com
208.56.20.17	A	mail.vipspirit.com
208.56.20.52	PTR	abusebunny.com
208.56.20.81	A+PTR	ns.knsp.com
208.56.20.81	A	mail.ns.knsp.com
208.56.20.90	A	cisadems.org.ar
208.56.20.93	A	mail.pearlmanagement.ca
208.56.20.93	A	pearlmanagement.ca
208.56.20.102	PTR	portorafti.org
208.56.20.128	PTR	emar.net
208.56.20.150	PTR	unassigned.alabanza.com
208.56.20.169	PTR	ns1.hyperhosting.gr
208.56.20.174	PTR	anizam.com
208.56.20.182	PTR	elkamas.gr
208.56.20.188	A+PTR	cause-of-god.com
208.56.20.188	A	mail.cause-of-god.com
208.56.20.211	PTR	web-n.com
208.56.20.235	PTR	giftofgiving.org
208.56.21.3	PTR	jerkybyart.com
208.56.21.18	PTR	redsticksales.com
208.56.21.33	PTR	phrst.com
208.56.21.42	PTR	208-56-21-42.navisite.net
208.56.21.71	PTR	occamsoft.com
208.56.21.147	A	foodlionpanel.com
208.56.21.147	A	mail.foodlionpanel.com
208.56.21.147	A	www.foodlionpanel.com
208.56.21.198	PTR	tangerinecrafts.com
208.56.21.203	A	mail.slotcells.com
208.56.21.203	A	slotcells.com
208.56.21.214	PTR	208-56-21-214.navisite.net
208.56.21.222	PTR	crispcountyrebel.com
208.56.21.229	PTR	athenaangel.com
208.56.21.240	PTR	208-56-21-240.navisite.net
208.56.22.5	PTR	doorchime.com
208.56.22.7	PTR	bicasa.com.ni
208.56.22.14	PTR	tiftonmassage.com
208.56.22.20	A	mail.cognator.com
208.56.22.20	A	cognator.com
208.56.22.29	PTR	unassigned.alabanza.com
208.56.22.29	A	pinkribbons.net
208.56.22.55	PTR	ccsvt.us
208.56.22.57	A+PTR	jahncorp.com
208.56.22.57	A	mail.jahncorp.com
208.56.22.80	PTR	208-56-22-80.navisite.net
208.56.22.160	PTR	ilj.com
208.56.22.178	PTR	iica.int.ni
208.56.22.185	PTR	fallingbranch.com
208.56.22.191	PTR	unassigned.alabanza.com
208.56.22.191	A	www.cheaplimo.net
208.56.22.191	A	mail.cheaplimo.net
208.56.22.199	PTR	ccbcu.edu
208.56.22.208	A+PTR	noodle-machines.com
208.56.22.208	A	mail.noodle-machines.com
208.56.22.230	A+PTR	inandoutmoving.ca
208.56.22.232	PTR	registerdirect.ca
208.56.22.232	A	mail.registerplus.ca
208.56.22.232	A	mail.searchengines.ca
208.56.22.238	PTR	fepp.org.ec
208.56.23.4	A	1on1domains.com
208.56.23.4	A	mail.1on1domains.com
208.56.23.24	A	festivalsociety.com
208.56.23.26	PTR	graceonline.org
208.56.23.50	A	borecartexp.newcybage.alabanza.com
208.56.23.60	PTR	nettasource.com
208.56.23.65	PTR	208-56-23-65.navisite.net
208.56.23.101	PTR	saecsa.com
208.56.23.109	PTR	host4him.com
208.56.23.115	PTR	pgbcva.org
208.56.23.180	PTR	unassigned.alabanza.com
208.56.23.182	A	mail.internationalroboticssociety.org
208.56.23.187	A+PTR	ocmusic.ca
208.56.23.187	A	mail.ocmusic.ca
208.56.23.188	PTR	unassigned.alabanza.com
208.56.23.212	A+PTR	letsgetnaughty.com
208.56.23.212	A	mail.letsgetnaughty.com
208.56.23.215	PTR	208-56-23-215.navisite.net
208.56.23.219	PTR	moffatclan.com
208.56.23.229	PTR	iiat.org
208.56.23.229	A	taia.com