Is there a list of who owns class a address. I want to block all address outside of the US. My router has a firewall which I have been adding rules to block addresss from forgien countrys. But I like to add rules for a complete class a. For instance it looks like 220.127.116.11 to 18.104.22.168 is mostly in asia. Is they a list anywhere that says 220 is asia or 209 is us.