Robtex

Up: 66.28.72.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 66.28.74.0/24
Down right: 66.28.75.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
66.28.74.2	PTR	mdv-cust-swb-rsm.ethernext.com
66.28.74.3	PTR	mia-200-ua-r1.ethernext.com
66.28.74.13	PTR	mdv-core-r2.ethernext.com
66.28.74.16	PTR	www.ethernext.com
66.28.74.16	A	ethernap.com
66.28.74.19	PTR	auth01-ns.ethernext.com
66.28.74.20	PTR	200-cc-nwt-swa.ethernrext.com
66.28.74.22	PTR	mdv-cust-swa.ethernext.com
66.28.74.24	PTR	mdv-cust-swb.ethernext.com
66.28.74.32	PTR	www.zanni.com
66.28.74.33	PTR	www.racewiz.com
66.28.74.34	PTR	rasnm.carracing.com
66.28.74.36	PTR	chris.carracing.com
66.28.74.49	PTR	ns2.ultranetinc.com
66.28.74.50	PTR	ns2.ethernext.com
66.28.74.51	PTR	ns2.ableweb.com
66.28.74.54	PTR	ns.cyberwave.net
66.28.74.56	PTR	ns1.ethernext.com
66.28.74.62	PTR	free4sex.com
66.28.74.97	PTR	gw.colo.ethernext.com
66.28.74.102	PTR	sl.colo.ethernext.com
66.28.74.106	PTR	web1.elitegroup.biz
66.28.74.108	PTR	hog.inxs-inc.com
66.28.74.113	A	mail1.ableweb.com
66.28.74.113	A	mail.ableweb.com
66.28.74.113	A	aw1.ableweb.com
66.28.74.114	PTR	daemon1.ethernext.com
66.28.74.133	PTR	www.aikenrealestate.com
66.28.74.135	PTR	www.direct-color.com
66.28.74.138	PTR	www.pussie-heaven.com
66.28.74.146	PTR	www.nurserylive.com
66.28.74.154	PTR	www.salsamp3.com
66.28.74.156	PTR	www.mp3latina.com
66.28.74.163	PTR	www.mtvmodels.com
66.28.74.167	PTR	www.gomarinas.tv
66.28.74.169	PTR	www.gempavers.com
66.28.74.170	PTR	www.dunanbrickpavers.com
66.28.74.171	PTR	www.jorgefernandezart.com
66.28.74.173	PTR	www.gownsetc.com
66.28.74.182	PTR	www.barely-eighteen.com
66.28.74.183	PTR	www.finallyeighteen.com
66.28.74.187	PTR	www.cartoonfly.com
66.28.74.189	PTR	www.adultcontentzone.com
66.28.74.195	PTR	www.voluptuousvixens.com
66.28.74.211	PTR	www.picturesonlocation.com
66.28.74.217	PTR	www.neocyber.com
66.28.74.225	PTR	www.adulthentaireactor.com
66.28.74.243	PTR	www.soflausa.com
66.28.75.10	A	www.integraswitch.com
66.28.75.10	A	*.integraswitch.net
66.28.75.10	A	integraswitch.net
66.28.75.36	A	mail.bucksbarbeque.com
66.28.75.90	PTR	66.28.75.90