Hi.
Maybe this have not be here, but i have no idea where i can ask.
I like to know, if countryes have IP adress.
i mean, if it works like the first 3 or first 6 numbers of IP says for sure what country it is and the rest says where in that country it is... ?

And... where can i get some list of first numbers of countryes?

I did search on gooogle, but found only softwares to detect where from is the visitor, but did not found some general first numbers of countryes...

Thanks much

I don't think it works that way. Blocks of IP numbers are assigned to different owners. You can look the the IP number up, find the owner and see what country the owner is in. ISPs then often assign their IP numbers geographically among their users, but I don't think there's a law that says it has to be so. Anyway, I don't think you can look at the first group in an IP number and say what country it's assigned to. Of course I could be wrong. Others here know this stuff way better than I do, so hopefully you'll get a more reliable answer.

http://dnsstuff.com

I'm no expert either, but looking around at W3C, I found this Internet Protocol suite Wiki site you might want to read.

Nah, they're completely non-determinative. Once upon a time 203.x.x.x. meant New Zealand and Australia but everyone from Pakistan through to Vanuatu seems to use 203.x.x.x now.

In saying so, some companies/organisations own complete blocks like
MIT owns all of 18.x.x.x. and Xerox all of 13.x.x.x

Thanks a lot, friends

Id like to say one last things, i dont know where you live in the world, but in Canada, some ISP (Internet Service Providers) have the first few numbers in an IP. You could find service providers in the country you want to block, and then block the providers. but then you might be blocking 2+ countries if the ISP is more international.