Robtex

Up: 208.81.64.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 208.81.72.0/22
Down right: 208.81.76.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
208.81.72.2	A+PTR	dns1.acainc.net
208.81.72.2	PTR	www.nstransfer.com
208.81.72.2	PTR	nstransfer.com
208.81.72.3	A+PTR	dns2.acainc.net
208.81.72.4	PTR	dyndns.modelamerican.com
208.81.72.4	A+PTR	ns1.acainc.net
208.81.72.5	A	ns2.acainc.net
208.81.72.8	A+PTR	calamari.acainc.net
208.81.72.12	A+PTR	cuda.acainc.net
208.81.72.13	PTR	zix01.acainc.net
208.81.72.15	A	cuda.unb.bank
208.81.72.16	PTR	www.acainc.net
208.81.72.16	A	www2.acainc.net
208.81.72.16	A	www.jwrautomuseum.com
208.81.72.18	PTR	www4.acainc.net
208.81.72.18	A	www.nativitybvm.net
208.81.72.19	PTR	www5.acainc.net
208.81.72.26	A	schuylkillvision.com
208.81.72.28	PTR	www9.acainc.net
208.81.72.28	A	craneinsuranceagency.com
208.81.72.28	A	videoworksforyou.com
208.81.72.30	A	www.controlparts.com
208.81.72.32	PTR	www10.acainc.net
208.81.72.32	A	svcorvetteclub.net
208.81.72.32	A	rinaldicars.com
208.81.72.36	PTR	www.mabears.net
208.81.72.40	A	mail.acainc.net
208.81.72.41	A	mail.fanelligarage.com
208.81.72.41	A	mail2.acainc.net
208.81.72.42	A	mail.fanellitrucking.com
208.81.72.48	A+PTR	www.tristate-envelope.com
208.81.72.48	A	tristate-envelope.com
208.81.72.49	A	regencypluswindows.com
208.81.72.50	A	ultracleanfuels.com
208.81.72.56	A+PTR	email.acainc.net
208.81.72.61	A+PTR	www.unb.bank
208.81.72.61	A	unb.bank
208.81.72.68	A+PTR	mailrouter.acainc.net
208.81.72.70	A	mail.hbggastro.com
208.81.72.71	A	mail.acar4less.com
208.81.72.72	A	mail.aaaschuylkill.net
208.81.72.73	A	mail.wjpengineers.com
208.81.72.74	A+PTR	nativitybvm.net
208.81.72.76	A	mail.kubishinandator.com
208.81.72.77	A	mail.schuylkillcommunityaction.com
208.81.72.79	A	mail.lehighfuels.com
208.81.72.80	A	mail.leakasqualityfoods.net
208.81.72.81	A+PTR	mail.conceptmedical.net
208.81.72.84	A	mail.schuyl.com
208.81.72.102	A	mail.lloydhampton.com
208.81.72.111	A	www.controlparts.com
208.81.72.127	PTR	exchange.vanhoekelen.com
208.81.72.127	PTR	mail.vanhoekelen.com
208.81.72.129	A	mail.aaaschuylkill.net
208.81.72.130	PTR	mail.dirty-dog.net
208.81.72.131	A	mail.acar4less.com
208.81.72.132	A	mail.action-software.com
208.81.72.136	A	mail.ashlanddiesel.com
208.81.72.137	A+PTR	mail.ashlandlibrary.net
208.81.72.138	A+PTR	mail.baneinsurance.com
208.81.72.141	A	mail.schuyl.com
208.81.72.145	PTR	mail.burden-of-proof.com
208.81.72.147	PTR	mail.continentalgraphics.net
208.81.72.150	A	mail.conceptmedical.net
208.81.72.151	A	mail.craneinsuranceagency.com
208.81.72.154	A+PTR	mail.customweaveshop.com
208.81.72.155	A	mail.dannysdrivein.com
208.81.72.159	A	mail.fbpa.org
208.81.72.168	A	mail.imgpc.com
208.81.72.169	A	mail.incubator-tech.com
208.81.72.171	PTR	mail.just4funrentals.com
208.81.72.173	A	mail.kelleroil.com
208.81.72.174	A	mail.kubishinandator.com
208.81.72.176	A	mail.leakasqualityfoods.net
208.81.72.178	A	mail.lehighfuels.com
208.81.72.179	A	mail.lloydhampton.com
208.81.72.183	A	mail.minersvillelions.com
208.81.72.185	A+PTR	mail.nattees.com
208.81.72.187	A	mail.norcocfst.com
208.81.72.190	A	mail.pacoalhistory.com
208.81.72.191	A	mail.pad-co.com
208.81.72.192	A	mail.paems.net
208.81.72.194	A	mail.personaltouchadvertising.com
208.81.72.196	A	mail.pottsvillecoke.com
208.81.72.200	A+PTR	mail.rnrautogroup.com
208.81.72.202	A	mail.schcoha.org
208.81.72.206	A	mail.schuylkillchamber.com
208.81.72.207	A	mail.schuylkillcommunityaction.com
208.81.72.211	PTR	mail.shenandoahpahistory.org
208.81.72.214	A	mail.hbggastro.com
208.81.72.217	PTR	mail.tvbac.com
208.81.72.220	A	mail.karpowichlaw.com
208.81.72.221	A	mail.wjpengineers.com
208.81.72.224	A+PTR	mail.fama874.com
208.81.74.99	PTR	mail.extol.com
208.81.74.99	A	ns2.extol.com
208.81.74.100	A	mail.extol.com
208.81.75.18	A+PTR	message.schmobile.com
208.81.75.18	A+PTR	pager.schmobile.com
208.81.75.18	PTR	message.schmobile.net
208.81.75.20	PTR	www.greenscomm.com
208.81.75.20	PTR	pager.schmobile.com
208.81.75.20	PTR	www.schmobile.com
208.81.75.21	PTR	pager2.schmobile.com
208.81.75.21	A	www.schuylkillmobilefone.com
208.81.75.21	A	greenscomm.com
208.81.75.25	A	smfone.com
208.81.75.28	A+PTR	mail.schmobile.com
208.81.75.34	A+PTR	jnet.scema.org
208.81.76.34	A	pix.pothosp.com
208.81.76.35	A	vpn.pothosp.com
208.81.76.38	A	srv.pothosp.com
208.81.76.131	A	synpacs.schuylkillhealth.com
208.81.76.138	A	smcpacs.schuylkillhealth.com
208.81.77.230	A	mta02.schuylkillhealth.com
208.81.78.113	A	status.acainc.net
208.81.78.115	A	exch.acainc.net
208.81.78.116	A	wsus-server.acainc.net
208.81.78.117	A	support.acainc.net
208.81.79.29	A	ns1.judyagreen.com
208.81.79.29	A	ns1.smfone.com
208.81.79.29	A	ns1.schmobile.net