Robtex

Up: 212.15.192.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 212.15.224.0/20
Down right: 212.15.240.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
212.15.224.1	PTR	node1.bcn.es
212.15.224.2	PTR	node2.bcn.es
212.15.224.3	PTR	node3.bcn.es
212.15.224.4	PTR	node4.bcn.es
212.15.224.34	PTR	www.barcelona.biz
212.15.224.34	PTR	www.barcelona.es
212.15.224.34	PTR	bcnweb1.bcn.es
212.15.224.35	PTR	node35.bcn.es
212.15.224.65	PTR	node65.bcn.es
212.15.224.70	A	node70.bcn.es
212.15.224.96	PTR	node96.bcn.es
212.15.224.98	PTR	node98.bcn.es
212.15.224.101	A	isuite.bcn.es
212.15.224.116	A	node116.bcn.es
212.15.224.118	A	node118.bcn.es
212.15.224.123	A	node123.bcn.es
212.15.224.129	A	node129.bcn.es
212.15.224.130	A+PTR	node130.bcn.es
212.15.224.131	A	node131.bcn.es
212.15.224.132	A	node132.bcn.es
212.15.224.226	PTR	node226.bcn.es
212.15.225.1	PTR	nodeb1.bcn.es
212.15.225.11	A	rh.bcn.cat
212.15.225.12	A	vssl.bcn.cat
212.15.225.33	A	nodeb33.bcn.es
212.15.225.35	PTR	nodeb35.bcn.es
212.15.225.35	A	rup.hops-fp6.org
212.15.225.35	A	mail.hops-fp6.org
212.15.225.66	PTR	nodeb66.bcn.es
212.15.225.225	PTR	nodeb225.bcn.es
212.15.225.226	PTR	nodeb226.bcn.es
212.15.228.41	A+PTR	bustiaetica.barcelona.cat
212.15.228.41	PTR	node41.bcn.es
212.15.228.69	A+PTR	iweb223.bcn.es
212.15.228.69	A	node69.bcn.es
212.15.228.71	A+PTR	iweb224.bcn.es
212.15.228.71	A	node71.bcn.es
212.15.228.73	PTR	wga12.bcn.cat
212.15.228.73	PTR	node73.bcn.es
212.15.228.98	PTR	node98.bcn.es
212.15.228.98	PTR	autodiscover.ext.bcn.cat
212.15.228.98	A	correu.bcn.cat
212.15.228.99	PTR	node99.bcn.es
212.15.228.99	A	mail.bcn.cat
212.15.228.105	A+PTR	iweb225.bcn.es
212.15.228.106	A+PTR	iweb226.bcn.es
212.15.228.208	PTR	node208.bcn.es
212.15.228.216	PTR	node216.bcn.es
212.15.228.228	PTR	node228.bcn.es
212.15.228.228	A+PTR	iweb228.bcn.es
212.15.228.228	A+PTR	iweb228.bcn.cat