? blocking specific countries

[b3zra1y]

I know this is not a question specific to vBulletin - but I'm looking for the most efficient way to ban user registrations from certain countries (e.g., Russia, Poland, Romania, China).

I can get a very long list of IP addresses for these countries, but I'd like to find the most succinct list by which to ban countries as a whole in the 'User Banning' options area.

for example...
61*
69*
116*
121*
123*

Can anyone point me to the best way to do this ?

THANKS

--------------- Added [DATE]1341331640[/DATE] at [TIME]1341331640[/TIME] ---------------

Can anyone help with this ?