Robtex

Up: 208.4.192.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 208.4.208.0/21
Down right: 208.4.216.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
208.4.208.36	A	mail.gazellelink.net
208.4.208.36	A	ns2.garrydavies.com
208.4.208.36	A	ns1.gazellelink.net
208.4.208.80	A	*.amsat-na.com
208.4.208.80	A	mx.amsat-na.com
208.4.210.148	PTR	mail.geins.com
208.4.210.153	PTR	mail.tigereyedesign.com
208.4.212.51	PTR	host51.sprintnetops.net
208.4.212.51	A	*.bcfoffice.com
208.4.212.51	A	mail.bcfoffice.com
208.4.212.131	A+PTR	mail.waynecountycourthouse.com
208.4.212.131	A	mail.waynecourts.org
208.4.212.131	A	waynecountycourthouse.com
208.4.212.163	PTR	host163.sprintnetops.net
208.4.212.163	A	www.safy.biz
208.4.212.163	A	lemon.safy.biz
208.4.212.166	A	www.safy.info
208.4.212.166	A	safy.org
208.4.212.218	A	asl.arrowtruline.com
208.4.212.221	A	atlmail.arrowtruline.com
208.4.212.227	PTR	host227.sprintnetops.net
208.4.212.251	A	mail.centralfarm.com
208.4.218.4	A	aa-adbuilder.com
208.4.218.4	A	ae-adbuilder.com
208.4.218.4	A	adbuildercentral.com
208.4.218.18	A	dsproof.net
208.4.218.52	PTR	clark.ds-creative.net
208.4.218.52	A	404d.com
208.4.218.52	A	dsfcweb.com
208.4.218.70	A	bartouch.com
208.4.218.72	PTR	email1.cobra-inc.com
208.4.218.72	A	mail.bartouch.com
208.4.218.132	A	ohio-title.com
208.4.218.132	A	bgcorp.net
208.4.218.133	A+PTR	mail.bgcorp.net
208.4.218.133	A	*.bgcorp.net
208.4.218.134	PTR	mail.celmoreplastics.com
208.4.218.197	A+PTR	mail2.teammiller.net
208.4.218.197	A	ml.teammiller.net
208.4.218.198	A+PTR	mail.const-it.com
208.4.218.198	A	const-it.com
208.4.218.200	A+PTR	ml.teammiller.net
208.4.218.220	A	bssint.com
208.4.220.27	PTR	webmail.trcpg.com