Robtex

Up: 66.59.32.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 66.59.48.0/21
Down right: 66.59.56.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
66.59.48.68	PTR	plesk5.hosting.crocker.com
66.59.48.68	A	failsatliving.com
66.59.48.68	A	margolacpa.com
66.59.48.69	PTR	plesk6.hosting.crocker.com
66.59.48.69	A	failsatliving.com
66.59.48.69	A	margolacpa.com
66.59.48.70	PTR	plesk7.hosting.crocker.com
66.59.48.71	PTR	plesk8.hosting.crocker.com
66.59.48.80	A+PTR	zimbra1.crocker.com
66.59.48.80	A	theclarkeschools.org
66.59.48.80	A	webmail.clarkeschools.org
66.59.48.81	A	zimbradevel.crocker.com
66.59.48.88	A	dns-auth2.crocker.com
66.59.48.129	A	mx80-lo-0.spfld.crocker.com
66.59.48.131	A	ex4200-lo-0.gfld.crocker.com
66.59.48.170	A	ex4200-xe-0-1-0.gfld.crocker.com
66.59.48.195	A	3750a-g1-0-48.spfld.crocker.com
66.59.48.197	A	mx80-ge-1-1-1.spfld.crocker.com
66.59.49.30	A	hwrsd.org.mx1.crocker.rcimx.net
66.59.49.30	A	stobierski.com.mx3.crocker.rcimx.net
66.59.49.30	A	corp.crocker.com.mx1.crocker.rcimx.net
66.59.49.50	A	bboffsite.com
66.59.49.224	A	mail.jpselastomerics.com
66.59.49.224	A	webmail.argotec.com
66.59.49.224	A	mail.stevensurethane.com
66.59.50.1	A+PTR	mail.facilitysupply.com
66.59.50.65	A	northeastmarineinsurance.com
66.59.50.65	A	insuringyourway.com
66.59.50.65	A	finckandperras.com
66.59.50.67	A	secure.homeplanner.com
66.59.55.51	PTR	printnow.com
66.59.55.58	A	billpay.sheld.org
66.59.55.65	A	mail.naeo.org
66.59.55.65	A	lists.naeo.org
66.59.55.104	PTR	nnaxos.datamat.net
66.59.55.104	A	comchannel.com
66.59.55.104	A	onemeta.net
66.59.55.137	PTR	mail.berkshireworks.org
66.59.55.143	PTR	mail.morrisonberkshire.com
66.59.55.146	PTR	mail.briencenter.org
66.59.55.195	PTR	mail2.williamstown.net
66.59.55.214	A	sheffieldpd.com
66.59.55.226	PTR	mail.jda.org
66.59.56.35	PTR	110pleasantstdsl.adsl.spfdma.crocker.net
66.59.56.35	A	mail.commonwealthfelt.com
66.59.56.51	A	mail.gariepycpa.com
66.59.57.114	A	mail2.sheld.org
66.59.57.134	A	ses.sunderland.ma.us
66.59.57.135	A+PTR	f0670.frsu38.org
66.59.57.135	A	wes.whately.ma.us
66.59.57.152	PTR	barracuda.frsd.deerfield.ma.us
66.59.61.147	A	cpahouser.com
66.59.61.147	A	mail.lapierre.com
66.59.61.147	A	mail.snowfarm-art.org
66.59.61.194	A	dns-auth2.crocker.com