Robtex

Up: 216.236.224.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 216.236.240.0/21
Down right: 216.236.248.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.236.240.1	PTR	core1.usai.net
216.236.240.102	A+PTR	www.triple-s.com
216.236.240.102	A	triple-s.com
216.236.240.102	A	protec-4.com
216.236.240.126	PTR	svrmx1.usai.net
216.236.240.126	A	mail.altitudeventures.com
216.236.240.126	A	mail.pittindustries.com
216.236.240.130	A+PTR	webmail.usai.net
216.236.240.130	A	mail.creationrebel.com
216.236.240.130	A	webmail.creationrebel.com
216.236.240.138	PTR	omega.usai.net
216.236.240.146	A+PTR	svrmail1.usai.net
216.236.240.147	PTR	mail.usai.net
216.236.240.174	A+PTR	my.usai.net
216.236.240.182	A+PTR	noc.usai.net
216.236.240.202	PTR	svrmx2.usai.net
216.236.240.206	PTR	mail.usai.net
216.236.240.210	PTR	svrmx2.usai.net
216.236.240.210	A	mail.ferrickbrosmoving.com
216.236.240.210	A	mail.hamptoncoach.com
216.236.240.234	A	vice.usai.net
216.236.240.242	A	alpha.usai.net
216.236.241.3	A	bcc-bos-ex1.bostoncommunitycapital.org
216.236.241.3	A	mail.bostoncommunitycapital.org
216.236.241.27	A	backup.petercondakes.com
216.236.241.35	PTR	ftp.c-ore.com
216.236.241.70	A+PTR	vhostx2.usai.net
216.236.241.114	A	filter.usai.net
216.236.241.118	A+PTR	pyrrha.usai.net
216.236.241.134	PTR	svr3.usai.net
216.236.241.134	A	vhostx1.usai.net
216.236.242.58	A	mail2.pdfinc.com
216.236.242.62	PTR	svr2.usai.net
216.236.242.62	A	members.mva.net
216.236.242.66	A+PTR	svr1.usai.net
216.236.242.66	A	rwhois.usai.net
216.236.242.66	A	epilationhairremoval.com
216.236.242.70	PTR	svr2.usai.net
216.236.242.70	A	risconsulting.net
216.236.242.74	PTR	svr3.usai.net
216.236.242.78	PTR	svr4.usai.net
216.236.242.101	A	ftp.targetlitigation.com
216.236.242.106	PTR	svrmx1.usai.net
216.236.242.147	PTR	zimbra.ourweb.net
216.236.242.198	PTR	svr4.usai.net
216.236.242.198	A	harborsideadhc.com
216.236.242.198	A	christophergallery.com
216.236.242.210	PTR	svr3w.usai.net
216.236.242.210	A	poahpi.com
216.236.242.210	A	homevacations.com
216.236.242.214	PTR	svr4w.usai.net
216.236.242.214	A	crivellosigns.com
216.236.242.214	A	thehousebythemouse.com
216.236.242.238	A+PTR	jncquilts.com
216.236.242.242	A+PTR	v-k-i.net
216.236.242.242	A	www.v-k-i.net
216.236.242.242	A	mail.v-k-i.com
216.236.242.246	PTR	svr3.usai.net
216.236.242.250	PTR	svr3.usai.net
216.236.242.254	PTR	svr3.usai.net
216.236.243.2	A	mail.springgroup.com
216.236.243.2	A	vip.springgroup.com
216.236.243.35	A	newmail.crystalmotorexpress.com
216.236.243.35	A	mail.crystalmotorexpress.com
216.236.243.43	A	home.crystalmotorexpress.com
216.236.244.11	A+PTR	eve.usai.net
216.236.244.12	PTR	vhostx1.usai.net
216.236.244.98	A	ns1.gcts.edu
216.236.244.100	A	globalchristianity.org
216.236.244.110	A	www.ministrylist.com
216.236.244.110	A	analytikon.org
216.236.244.130	A+PTR	svr1804.usai.net
216.236.244.130	A	davepogorelc.com
216.236.244.130	A	zimsport.org
216.236.244.218	A	godine.com
216.236.244.218	A	goodaleco.com
216.236.244.218	A	blacksparrowbooks.com
216.236.245.68	A+PTR	blah.usai.net
216.236.246.1	A+PTR	mva-gw.mva.net
216.236.246.4	PTR	noc.usai.net
216.236.246.5	PTR	gw2.mva.net
216.236.246.10	A	sweetsammis.com
216.236.246.10	A	adam.usai.net
216.236.246.14	A	mail.usai.net
216.236.246.16	PTR	phil2.mva.net
216.236.246.23	PTR	pyrrha.usai.net
216.236.246.33	PTR	my.usai.net
216.236.247.195	PTR	ns1.atomicusa.com
216.236.248.241	PTR	mail.ember.com
216.236.249.11	PTR	arcgate.arc-tech.com
216.236.250.105	A	pubfactory.net
216.236.250.105	A	thepubfactory.com
216.236.251.123	PTR	www.mgale.com
216.236.251.123	A	martingale.com
216.236.251.124	A	mail.martingale.com
216.236.251.124	A	mail.mgale.com
216.236.251.130	A	shaar.gordon.edu
216.236.251.131	A	edu.gdn
216.236.251.131	A	itunes.gordon.edu
216.236.251.131	A	gordon.edu
216.236.251.144	A	exchange.gordon.edu
216.236.251.145	A	quadcam.gordon.edu
216.236.251.146	A	googlemini.gordon.edu
216.236.251.147	A	xythos.gordon.edu
216.236.251.170	A	podcast.gordon.edu
216.236.251.179	A	whitehousefellowsproject.com
216.236.251.179	A	sites.gordon.edu
216.236.251.186	A	lookout.gordon.edu
216.236.252.16	PTR	www.bpl.org
216.236.252.37	PTR	ironspm.bpl.org
216.236.252.113	PTR	ironspm2.bpl.org
216.236.253.50	A+PTR	gateway.gloucesterschools.com
216.236.253.51	PTR	ci.gloucester.ma.us
216.236.253.51	A	mail2.gloucester-ma.gov
216.236.253.51	A	mail2.ci.gloucester.ma.us
216.236.253.86	A	www.metaphoria.org
216.236.253.86	A	mobilelubeinc.com
216.236.253.86	A	capeannbiz.com
216.236.253.146	PTR	svr3.usai.net
216.236.253.146	A	callfreedompest.com
216.236.253.146	A	www.callfreedompest.com
216.236.254.3	A+PTR	mail.ember.com
216.236.254.66	PTR	v-k-i.net
216.236.254.66	A	mail.v-k-i.net
216.236.254.114	A	smtp1.historicnewengland.biz
216.236.254.214	PTR	svr1.brianbollinger.com
216.236.254.214	A	www.besttrains.com
216.236.254.214	A	lobstergeddon.com
216.236.254.245	A	lunchbox.selfassembled.com
216.236.254.245	A	locust.selfassembled.com
216.236.255.4	A	sarah.ourweb.net
216.236.255.10	A	t.gowers.cn