Robtex

Up: 64.242.184.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 64.242.184.0/23
Down right: 64.242.186.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.242.184.11	A+PTR	l3dns.hunting-inc.com
64.242.184.11	A+PTR	ns1.hunting-intl.com
64.242.184.11	PTR	ns1.hunting-inc.net
64.242.184.12	A	ns2.huntingplc.net
64.242.184.12	A	ns1.huntingenergy.com
64.242.184.13	A+PTR	mailgate.hunting-intl.com
64.242.184.13	A	usmailhost.hunting-intl.com
64.242.184.14	A	smtp.hunting-intl.com
64.242.184.16	A	mail.hunting-intl.com
64.242.184.22	A+PTR	l3spamsecurity2.hunting-inc.com
64.242.184.22	A+PTR	smtp.hunting-intl.com
64.242.184.22	A+PTR	mail.huntingartprize.com
64.242.184.23	PTR	itkb.hunting-inc.com
64.242.184.23	PTR	ids.hunting-intl.com
64.242.184.23	PTR	itkb.hunting-intl.com
64.242.184.27	A	exch.hunting-intl.com
64.242.184.37	A	huntingartprize.com
64.242.184.80	A+PTR	l3spamsecurity.hunting-inc.com
64.242.184.80	A+PTR	l3spamsecurity.huntingclients.com
64.242.184.80	A	l3spamsecurity.hunting-intl.com
64.242.184.240	A+PTR	namx01.hunting-intl.com
64.242.184.241	A+PTR	namx02.hunting-intl.com
64.242.185.34	A	www.griggsrbs.com
64.242.185.34	A	ftp.griggsrbs.com
64.242.185.34	A	griggsrbs.com
64.242.185.42	PTR	tfa.dknxt.com
64.242.185.48	PTR	tfa.dknxt.com
64.242.185.91	A+PTR	infmail.infgroup.com
64.242.185.193	PTR	dknxt-internet-rtr-3620.dknxt.com
64.242.185.203	PTR	mailexch.caag4.com
64.242.185.204	PTR	blg-pdc.boyslikegirls.com
64.242.185.204	PTR	mail.boyslikegirls.com
64.242.185.204	PTR	www.boyslikegirls.com
64.242.185.212	PTR	dns1.dknxt.com
64.242.185.237	A	vpn.paradigmdelivery.com
64.242.185.242	A	tandylofland.com
64.242.187.140	PTR	mailhost.superiorgraphics.com
64.242.187.202	PTR	mail.nssa-nsca.com