Robtex

Up: 185.21.16.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 185.21.16.0/23
Down right: 185.21.18.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
185.21.16.2	PTR	pop2.365net.is
185.21.16.66	A+PTR	ns1.365net.is
185.21.16.77	A+PTR	icecast.365net.is
185.21.16.79	A	vcache1.365net.is
185.21.16.90	A+PTR	dns-rr-01.365net.is
185.21.16.99	A+PTR	ns2.365net.is
185.21.16.100	A+PTR	dns-rr-02.365net.is
185.21.16.108	A+PTR	nf2.365net.is
185.21.16.109	A	visir.is
185.21.17.1	A+PTR	mx1.365.is
185.21.17.2	A+PTR	mx2.365.is
185.21.17.3	A+PTR	mx2.emax.is
185.21.17.6	A	www.glamour.is
185.21.17.6	A	glamour.is
185.21.17.11	A+PTR	web4.365.is
185.21.17.11	A	www.365.is
185.21.17.12	A+PTR	web3.365.is
185.21.17.12	A	www.365.is
185.21.17.12	A	365.is
185.21.17.21	PTR	www.365.is
185.21.17.21	A	popptivi.is
185.21.17.27	A+PTR	it.365.is
185.21.17.27	A	fmx.is
185.21.17.27	A	emax.is
185.21.17.241	A	visir.is
185.21.17.241	A	vaktin.visir.is
185.21.17.241	A	visir1.365cdn.is
185.21.17.242	PTR	skuta-1.365cdn.is
185.21.17.245	A+PTR	sidumuli-3.365cdn.is
185.21.17.245	A	rst.365cdn.is
185.21.17.245	A	visirlive.365cdn.is
185.21.17.247	A	visir.is
185.21.17.248	A	visir.is
185.21.17.249	A+PTR	visir2.365cdn.is
185.21.17.249	A	visir.is
185.21.17.249	A	vaktin.visir.is
185.21.17.250	PTR	thor-1.365cdn.is
185.21.17.250	A	rst.365cdn.is
185.21.17.250	A	visirlive.365cdn.is
185.21.17.251	PTR	thor-2.365cdn.is
185.21.17.251	A	rst.365cdn.is
185.21.17.251	A	visirlive.365cdn.is
185.21.18.155	PTR	185.21.18-155.ljoshradi.is
185.21.18.155	A	palmar.is
185.21.18.165	PTR	185.21.18-165.ljoshradi.is
185.21.18.185	PTR	185.21.18-185.ljoshradi.is
185.21.18.185	A	codw.co.vu
185.21.18.211	PTR	185.21.18-211.ljoshradi.is