Robtex

Up: 213.228.140.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 213.228.141.0/25
Down right: 213.228.141.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
213.228.141.23	A	f2-213-228-141-23.netvisao.pt
213.228.141.43	A+PTR	mail.passavante-portuguesa.pt
213.228.141.43	A	f2-213-228-141-43.netvisao.pt
213.228.141.43	A	passavante-portuguesa.pt
213.228.141.67	A+PTR	f2-213-228-141-67.netvisao.pt
213.228.141.67	A	*.privadis.eu
213.228.141.67	A	mail.privadis.eu
213.228.141.90	A	f2-213-228-141-90.netvisao.pt
213.228.141.255	PTR	f2-213-228-141-255.netvisao.pt