Robtex

Up: 217.68.80.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 217.68.80.0/23
Down right: 217.68.82.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
217.68.80.21	PTR	dns1.hops.hr
217.68.80.22	PTR	dns2.hops.hr
217.68.80.23	A	portal.ops.hep.hr
217.68.80.23	A	www.hops.hr
217.68.80.25	A+PTR	mail.hops.hr
217.68.80.25	A+PTR	sip.hep.hr
217.68.80.25	PTR	sip.hep.hr.hep.hr
217.68.80.29	PTR	donacije.hep.hr
217.68.80.29	PTR	hostelhridbiograd.hep.hr
217.68.80.29	PTR	mojcloud.hep.hr
217.68.80.38	A+PTR	ns1.hep.hr
217.68.80.47	A	portal.hep.hr
217.68.80.48	A+PTR	api.hep.hr
217.68.80.48	A+PTR	mjerenje.hep.hr
217.68.80.48	PTR	mojracun.hep.hr
217.68.80.49	PTR	csrce.hep.hr
217.68.80.50	PTR	owa.hep.hr
217.68.80.62	A+PTR	icolim.hep.hr
217.68.80.62	A+PTR	icolim2011.hep.hr
217.68.80.66	A	hridvalhostels.com
217.68.80.135	A+PTR	vpn.hep.hr
217.68.80.140	PTR	www.croismo.hr
217.68.80.140	PTR	cert.hep.hr
217.68.80.140	A+PTR	oie.hep.hr
217.68.80.141	PTR	ftp.hep.hr
217.68.80.145	A+PTR	mail1.hostelvalkarlobag.com
217.68.80.145	PTR	mail1.hep.hr
217.68.80.145	A+PTR	mail1.hep-trgovina.si
217.68.80.146	PTR	webmail.hep.hr
217.68.80.148	A+PTR	opsw.hep.hr
217.68.80.149	A+PTR	gate01.hep.hr
217.68.80.156	PTR	mail.hostelvalkarlobag.com
217.68.80.156	PTR	mail.hep.hr
217.68.80.156	A+PTR	mail.hep-trgovina.si
217.68.80.157	PTR	www.mipro.hr
217.68.82.59	A+PTR	cro-cpc.hr
217.68.82.59	A+PTR	heptrade.rs
217.68.82.59	A+PTR	www.cro-cpc.hr
217.68.82.66	A	www1.hep.hr
217.68.82.66	A	www.hep.hr
217.68.82.66	A	noc.hep.hr
217.68.82.92	A+PTR	mail3.hep-energija.si
217.68.82.93	A	hep-energija.si
217.68.83.240	A	tonimilun.com
217.68.83.240	A	tonimilun.tv
217.68.83.240	A	*.tonimilun.com