Robtex

Up: 64.18.32.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 64.18.48.0/21
Down right: 64.18.56.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.18.48.15	A+PTR	help.acsbc.net
64.18.48.30	A+PTR	ns1.apachecounty.net
64.18.48.32	A+PTR	ns6.acsbc.net
64.18.48.33	A+PTR	nsc.apachecounty.net
64.18.48.40	A	wsus.apachecounty.net
64.18.48.45	A	navit.k12.az.us
64.18.48.48	A	sql.acsbc.net
64.18.48.60	A	ns5.acsbc.net
64.18.48.62	A	moodle.apachecounty.net
64.18.48.71	A+PTR	wiki.elks.net
64.18.48.100	A+PTR	mail.apachecounty.net
64.18.48.100	A	apachecounty.net
64.18.48.101	A+PTR	acsbc.net
64.18.48.101	A+PTR	mail.acsbc.net
64.18.48.102	PTR	mail.zingermail.net
64.18.48.103	PTR	mail.suncountrymail.org
64.18.48.112	A	mail.alpine.k12.az.us
64.18.48.113	A+PTR	mail.sjusd.net
64.18.48.113	PTR	pop.sjusd.net
64.18.48.113	PTR	smtp.sjusd.net
64.18.48.114	PTR	mail.sjaz.us
64.18.48.114	A+PTR	mcnary.k12.az.us
64.18.48.114	A	mail.mcnary.k12.az.us
64.18.48.115	PTR	mail.concho.k12.az.us
64.18.48.135	A+PTR	mx6.acsbc.net
64.18.48.184	A	sis.sjusd.net
64.18.48.187	A	sis.alpine.k12.az.us
64.18.48.201	A+PTR	web.rmusd.net
64.18.48.205	A	webserver.vernon.k12.az.us
64.18.48.206	PTR	wp.mcnary.k12.az.us
64.18.48.206	A+PTR	pagemaster3.acsbc.net
64.18.48.206	PTR	schools.apachecounty.net
64.18.48.242	A	madrid01.losmadrids.com
64.18.48.243	A+PTR	npcstudent.acsbc.net
64.18.48.244	A	npc.acsbc.net
64.18.48.245	A	forum.acsbc.net
64.18.49.23	A	mx1.sandersusd.com
64.18.49.23	A	mx1.sandersusd.net
64.18.50.3	A+PTR	gateway.acsbc.net
64.18.50.10	A+PTR	mx2.acsbc.net
64.18.50.10	A+PTR	mx2.apachecountyschools.net
64.18.50.11	A	mx1.acsbc.net
64.18.50.17	A	mail.alpine.k12.az.us
64.18.50.17	A	amx1.alpine.k12.az.us
64.18.50.33	A+PTR	mx1.mcnary.k12.az.us
64.18.50.52	A	redskins.sjaz.us
64.18.50.53	A+PTR	sj01.sjaz.us
64.18.50.65	A+PTR	apachelaw.net
64.18.50.65	A	mail.apachelaw.net
64.18.50.100	A+PTR	mx1.vernon.k12.az.us
64.18.52.10	A	rvnt01.elks.net
64.18.52.11	A+PTR	www.elks.net
64.18.52.11	A+PTR	xserver.elks.net
64.18.52.13	A	trend.elks.net
64.18.52.18	A+PTR	aplus.elks.net
64.18.52.21	A+PTR	mx1.elks.net
64.18.53.3	A	mx1.sjusd.net
64.18.53.3	A	smtp.sjusd.net
64.18.59.30	A+PTR	ns4.acsbc.net
64.18.62.28	A	video.co.apache.az.us
64.18.62.36	A+PTR	mx6.co.apache.az.us
64.18.62.36	A	apacheclerk.net
64.18.62.37	PTR	mx7.co.apache.az.us
64.18.62.37	A	exchange10-sj.co.apache.az.us
64.18.62.48	A+PTR	eagleassessor.co.apache.az.us
64.18.62.48	PTR	eagleweb.treasurer.co.apache.az.us
64.18.62.48	PTR	eagleweb.assessor.co.apache.az.us
64.18.63.20	A	www.roundvalleylibrary.com
64.18.63.20	A	apachecountylibraries.com
64.18.63.20	A	library.co.apache.az.us
64.18.63.21	A	www.apacheclerk.net